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Ellsworth CR, Wang C, Katz AR, Chen Z, Islamuddin M, Yang H, Scheuermann SE, Goff KA, Maness NJ, Blair RV, Kolls JK, Qin X. Natural Killer Cells Do Not Attenuate a Mouse-Adapted SARS-CoV-2-Induced Disease in Rag2-/- Mice. Viruses 2024; 16:611. [PMID: 38675952 DOI: 10.3390/v16040611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
This study investigates the roles of T, B, and Natural Killer (NK) cells in the pathogenesis of severe COVID-19, utilizing mouse-adapted SARS-CoV-2-MA30 (MA30). To evaluate this MA30 mouse model, we characterized MA30-infected C57BL/6 mice (B6) and compared them with SARS-CoV-2-WA1 (an original SARS-CoV-2 strain) infected K18-human ACE2 (K18-hACE2) mice. We found that the infected B6 mice developed severe peribronchial inflammation and rapid severe pulmonary edema, but less lung interstitial inflammation than the infected K18-hACE2 mice. These pathological findings recapitulate some pathological changes seen in severe COVID-19 patients. Using this MA30-infected mouse model, we further demonstrate that T and/or B cells are essential in mounting an effective immune response against SARS-CoV-2. This was evident as Rag2-/- showed heightened vulnerability to infection and inhibited viral clearance. Conversely, the depletion of NK cells did not significantly alter the disease course in Rag2-/- mice, underscoring the minimal role of NK cells in the acute phase of MA30-induced disease. Together, our results indicate that T and/or B cells, but not NK cells, mitigate MA30-induced disease in mice and the infected mouse model can be used for dissecting the pathogenesis and immunology of severe COVID-19.
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Affiliation(s)
- Calder R Ellsworth
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Chenxiao Wang
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Alexis R Katz
- Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Zheng Chen
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Mohammad Islamuddin
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Haoran Yang
- Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Pulmonary Critical Care and Environmental Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Sarah E Scheuermann
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
| | - Kelly A Goff
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
| | - Nicholas J Maness
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Robert V Blair
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
| | - Jay K Kolls
- Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Pulmonary Critical Care and Environmental Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Xuebin Qin
- Division of Comparative Pathology, Tulane National Primate Research Center, Health Sciences Campus, 18703 Three Rivers Road, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
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2
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Hruska-Plochan M, Wiersma VI, Betz KM, Mallona I, Ronchi S, Maniecka Z, Hock EM, Tantardini E, Laferriere F, Sahadevan S, Hoop V, Delvendahl I, Pérez-Berlanga M, Gatta B, Panatta M, van der Bourg A, Bohaciakova D, Sharma P, De Vos L, Frontzek K, Aguzzi A, Lashley T, Robinson MD, Karayannis T, Mueller M, Hierlemann A, Polymenidou M. A model of human neural networks reveals NPTX2 pathology in ALS and FTLD. Nature 2024; 626:1073-1083. [PMID: 38355792 PMCID: PMC10901740 DOI: 10.1038/s41586-024-07042-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
Human cellular models of neurodegeneration require reproducibility and longevity, which is necessary for simulating age-dependent diseases. Such systems are particularly needed for TDP-43 proteinopathies1, which involve human-specific mechanisms2-5 that cannot be directly studied in animal models. Here, to explore the emergence and consequences of TDP-43 pathologies, we generated induced pluripotent stem cell-derived, colony morphology neural stem cells (iCoMoNSCs) via manual selection of neural precursors6. Single-cell transcriptomics and comparison to independent neural stem cells7 showed that iCoMoNSCs are uniquely homogenous and self-renewing. Differentiated iCoMoNSCs formed a self-organized multicellular system consisting of synaptically connected and electrophysiologically active neurons, which matured into long-lived functional networks (which we designate iNets). Neuronal and glial maturation in iNets was similar to that of cortical organoids8. Overexpression of wild-type TDP-43 in a minority of neurons within iNets led to progressive fragmentation and aggregation of the protein, resulting in a partial loss of function and neurotoxicity. Single-cell transcriptomics revealed a novel set of misregulated RNA targets in TDP-43-overexpressing neurons and in patients with TDP-43 proteinopathies exhibiting a loss of nuclear TDP-43. The strongest misregulated target encoded the synaptic protein NPTX2, the levels of which are controlled by TDP-43 binding on its 3' untranslated region. When NPTX2 was overexpressed in iNets, it exhibited neurotoxicity, whereas correcting NPTX2 misregulation partially rescued neurons from TDP-43-induced neurodegeneration. Notably, NPTX2 was consistently misaccumulated in neurons from patients with amyotrophic lateral sclerosis and frontotemporal lobar degeneration with TDP-43 pathology. Our work directly links TDP-43 misregulation and NPTX2 accumulation, thereby revealing a TDP-43-dependent pathway of neurotoxicity.
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Affiliation(s)
| | - Vera I Wiersma
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Katharina M Betz
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- SIB Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland
| | - Izaskun Mallona
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- SIB Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland
| | - Silvia Ronchi
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
- MaxWell Biosystems AG, Zurich, Switzerland
| | - Zuzanna Maniecka
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Eva-Maria Hock
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Elena Tantardini
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Florent Laferriere
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Sonu Sahadevan
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Vanessa Hoop
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Igor Delvendahl
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | | | - Beatrice Gatta
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Martina Panatta
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | | | - Dasa Bohaciakova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
| | - Puneet Sharma
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
- NCCR RNA and Disease Technology Platform, Bern, Switzerland
| | - Laura De Vos
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
| | - Karl Frontzek
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Adriano Aguzzi
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Tammaryn Lashley
- Queen Square Brain Bank for Neurological diseases, Department of Movement Disorders, UCL Institute of Neurology, London, UK
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Mark D Robinson
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- SIB Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland
| | | | - Martin Mueller
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Andreas Hierlemann
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
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3
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Ziff OJ, Neeves J, Mitchell J, Tyzack G, Martinez-Ruiz C, Luisier R, Chakrabarti AM, McGranahan N, Litchfield K, Boulton SJ, Al-Chalabi A, Kelly G, Humphrey J, Patani R. Integrated transcriptome landscape of ALS identifies genome instability linked to TDP-43 pathology. Nat Commun 2023; 14:2176. [PMID: 37080969 PMCID: PMC10119258 DOI: 10.1038/s41467-023-37630-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 03/22/2023] [Indexed: 04/22/2023] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) causes motor neuron degeneration, with 97% of cases exhibiting TDP-43 proteinopathy. Elucidating pathomechanisms has been hampered by disease heterogeneity and difficulties accessing motor neurons. Human induced pluripotent stem cell-derived motor neurons (iPSMNs) offer a solution; however, studies have typically been limited to underpowered cohorts. Here, we present a comprehensive compendium of 429 iPSMNs from 15 datasets, and 271 post-mortem spinal cord samples. Using reproducible bioinformatic workflows, we identify robust upregulation of p53 signalling in ALS in both iPSMNs and post-mortem spinal cord. p53 activation is greatest with C9orf72 repeat expansions but is weakest with SOD1 and FUS mutations. TDP-43 depletion potentiates p53 activation in both post-mortem neuronal nuclei and cell culture, thereby functionally linking p53 activation with TDP-43 depletion. ALS iPSMNs and post-mortem tissue display enrichment of splicing alterations, somatic mutations, and gene fusions, possibly contributing to the DNA damage response.
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Affiliation(s)
- Oliver J Ziff
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK.
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, WC1N 3BG, UK.
- National Hospital for Neurology and Neurosurgery, University College London NHS Foundation Trust, London, WC1N 3BG, UK.
| | - Jacob Neeves
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, WC1N 3BG, UK
| | - Jamie Mitchell
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, WC1N 3BG, UK
| | - Giulia Tyzack
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, WC1N 3BG, UK
| | - Carlos Martinez-Ruiz
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Raphaelle Luisier
- Genomics and Health Informatics Group, Idiap Research Institute, Martigny, Switzerland
| | | | - Nicholas McGranahan
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Kevin Litchfield
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Simon J Boulton
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Ammar Al-Chalabi
- Maurice Wohl Clinical Neuroscience Institute, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Gavin Kelly
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Jack Humphrey
- Nash Family Department of Neuroscience & Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rickie Patani
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK.
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, WC1N 3BG, UK.
- National Hospital for Neurology and Neurosurgery, University College London NHS Foundation Trust, London, WC1N 3BG, UK.
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4
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Martin-Rodriguez O, Gauthier T, Bonnefoy F, Couturier M, Daoui A, Chagué C, Valmary-Degano S, Gay C, Saas P, Perruche S. Pro-Resolving Factors Released by Macrophages After Efferocytosis Promote Mucosal Wound Healing in Inflammatory Bowel Disease. Front Immunol 2021; 12:754475. [PMID: 35003066 PMCID: PMC8727348 DOI: 10.3389/fimmu.2021.754475] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/06/2021] [Indexed: 12/21/2022] Open
Abstract
Nonresolving inflammation is a critical driver of several chronic inflammatory diseases, including inflammatory bowel diseases (IBD). This unresolved inflammation may result from the persistence of an initiating stimulus or from the alteration of the resolution phase of inflammation. Elimination of apoptotic cells by macrophages (a process called efferocytosis) is a critical step in the resolution phase of inflammation. Efferocytosis participates in macrophage reprogramming and favors the release of numerous pro-resolving factors. These pro-resolving factors exert therapeutic effects in experimental autoimmune arthritis. Here, we propose to evaluate the efficacy of pro-resolving factors produced by macrophages after efferocytosis, a secretome called SuperMApo, in two IBD models, namely dextran sodium sulfate (DSS)-induced and T cell transfer-induced colitis. Reintroducing these pro-resolving factors was sufficient to decrease clinical, endoscopic and histological colitis scores in ongoing naive T cell-transfer-induced colitis and in DSS-induced colitis. Mouse primary fibroblasts isolated from the colon demonstrated enhanced healing properties in the presence of SuperMApo, as attested by their increased migratory, proliferative and contractive properties. This was confirmed by the use of human fibroblasts isolated from patients with IBD. Exposure of an intestinal epithelial cell (IEC) line to these pro-resolving factors increased their proliferative properties and IEC acquired the capacity to capture apoptotic cells. The improvement of wound healing properties induced by SuperMApo was confirmed in vivo in a biopsy forceps-wound colonic mucosa model. Further in vivo analysis in naive T cell transfer-induced colitis model demonstrated an improvement of intestinal barrier permeability after administration of SuperMApo, an intestinal cell proliferation and an increase of α-SMA expression by fibroblasts, as well as a reduction of the transcript coding for fibronectin (Fn1). Finally, we identified TGF-β, IGF-I and VEGF among SuperMApo as necessary to favor mucosal healing and confirmed their role both in vitro (using neutralizing antibodies) and in vivo by depleting these factors from efferocytic macrophage secretome using antibody-coated microbeads. These growth factors only explained some of the beneficial effects induced by factors released by efferocytic macrophages. Overall, the administration of pro-resolving factors released by efferocytic macrophages limits intestinal inflammation and enhance tissue repair, which represents an innovative treatment of IBD.
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Affiliation(s)
- Omayra Martin-Rodriguez
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Thierry Gauthier
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Francis Bonnefoy
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
- MED’INN’Pharma, Besançon, France
| | - Mélanie Couturier
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
- MED’INN’Pharma, Besançon, France
| | - Anna Daoui
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Cécile Chagué
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | | | - Claire Gay
- Department of Gastroenterology, University Hospital of Besançon, Besançon, France
| | - Philippe Saas
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Sylvain Perruche
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098 RIGHT, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
- MED’INN’Pharma, Besançon, France
- *Correspondence: Sylvain Perruche,
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5
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Barreira-Silva P, Melo-Miranda R, Nobrega C, Roque S, Serre-Miranda C, Borges M, Armada G, de Sá Calçada D, Behar SM, Appelberg R, Correia-Neves M. IFNγ and iNOS-Mediated Alterations in the Bone Marrow and Thymus and Its Impact on Mycobacterium avium-Induced Thymic Atrophy. Front Immunol 2021; 12:696415. [PMID: 34987496 PMCID: PMC8721011 DOI: 10.3389/fimmu.2021.696415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Disseminated infection with the high virulence strain of Mycobacterium avium 25291 leads to progressive thymic atrophy. We previously showed that M. avium-induced thymic atrophy results from increased glucocorticoid levels that synergize with nitric oxide (NO) produced by interferon gamma (IFNγ) activated macrophages. Where and how these mediators act is not understood. We hypothesized that IFNγ and NO promote thymic atrophy through their effects on bone marrow (BM) T cell precursors and T cell differentiation in the thymus. We show that M. avium infection cause a reduction in the percentage and number of common lymphoid progenitors (CLP). Additionally, BM precursors from infected mice show an overall impaired ability to reconstitute thymi of RAGKO mice, in part due to IFNγ. Thymi from infected mice present an IFNγ and NO-driven inflammation. When transplanted under the kidney capsule of uninfected mice, thymi from infected mice are unable to sustain T cell differentiation. Finally, we observed increased thymocyte death via apoptosis after infection, independent of both IFNγ and iNOS; and a decrease on active caspase-3 positive thymocytes, which is not observed in the absence of iNOS expression. Together our data suggests that M. avium-induced thymic atrophy results from a combination of defects mediated by IFNγ and NO, including alterations in the BM T cell precursors, the thymic structure and the thymocyte differentiation.
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Affiliation(s)
- Palmira Barreira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
- *Correspondence: Palmira Barreira-Silva, ; Margarida Correia-Neves,
| | - Rita Melo-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Claudia Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Margarida Borges
- Research Unit on Applied Molecular Biosciences (UCIBIO)/Rede de Química e Tecnologia (REQUINTE), Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Gisela Armada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Daniela de Sá Calçada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Samuel M. Behar
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, United States
| | - Rui Appelberg
- Instituto de Investigação e Inovação em Saúde (i3S), Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Palmira Barreira-Silva, ; Margarida Correia-Neves,
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6
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Gaidt MM, Morrow A, Fairgrieve MR, Karr JP, Yosef N, Vance RE. Self-guarding of MORC3 enables virulence factor-triggered immunity. Nature 2021; 600:138-142. [PMID: 34759314 PMCID: PMC9045311 DOI: 10.1038/s41586-021-04054-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 09/23/2021] [Indexed: 01/08/2023]
Abstract
Pathogens use virulence factors to inhibit the immune system1. The guard hypothesis2,3 postulates that hosts monitor (or 'guard') critical innate immune pathways such that their disruption by virulence factors provokes a secondary immune response1. Here we describe a 'self-guarded' immune pathway in human monocytes, in which guarding and guarded functions are combined in one protein. We find that this pathway is triggered by ICP0, a key virulence factor of herpes simplex virus type 1, resulting in robust induction of anti-viral type I interferon (IFN). Notably, induction of IFN by ICP0 is independent of canonical immune pathways and the IRF3 and IRF7 transcription factors. A CRISPR screen identified the ICP0 target MORC34 as an essential negative regulator of IFN. Loss of MORC3 recapitulates the IRF3- and IRF7-independent IFN response induced by ICP0. Mechanistically, ICP0 degrades MORC3, which leads to de-repression of a MORC3-regulated DNA element (MRE) adjacent to the IFNB1 locus. The MRE is required in cis for IFNB1 induction by the MORC3 pathway, but is not required for canonical IFN-inducing pathways. As well as repressing the MRE to regulate IFNB1, MORC3 is also a direct restriction factor of HSV-15. Our results thus suggest a model in which the primary anti-viral function of MORC3 is self-guarded by its secondary IFN-repressing function-thus, a virus that degrades MORC3 to avoid its primary anti-viral function will unleash the secondary anti-viral IFN response.
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Affiliation(s)
- Moritz M Gaidt
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA.
| | - Alyssa Morrow
- Electrical Engineering and Computer Science Department, University of California, Berkeley, CA, USA
| | - Marian R Fairgrieve
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Jonathan P Karr
- Division of Genetics, Genomics and Development, Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Nir Yosef
- Electrical Engineering and Computer Science Department, University of California, Berkeley, CA, USA
- Center for Computational Biology, University of California, Berkeley, CA, USA
- Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University, Boston, MA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Russell E Vance
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA.
- Cancer Research Laboratory and the Immunotherapeutics and Vaccine Research Initiative, University of California, Berkeley, CA, USA.
- Howard Hughes Medical Institute, University of California, Berkeley, CA, USA.
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7
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van Thiel BS, van der Linden J, Ridwan Y, Garrelds IM, Vermeij M, Clahsen-van Groningen MC, Qadri F, Alenina N, Bader M, Roks AJM, Danser AHJ, Essers J, van der Pluijm I. In Vivo Renin Activity Imaging in the Kidney of Progeroid Ercc1 Mutant Mice. Int J Mol Sci 2021; 22:ijms222212433. [PMID: 34830315 PMCID: PMC8619549 DOI: 10.3390/ijms222212433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/21/2022] Open
Abstract
Changes in the renin–angiotensin system, known for its critical role in the regulation of blood pressure and sodium homeostasis, may contribute to aging and age-related diseases. While the renin–angiotensin system is suppressed during aging, little is known about its regulation and activity within tissues. However, this knowledge is required to successively treat or prevent renal disease in the elderly. Ercc1 is involved in important DNA repair pathways, and when mutated causes accelerated aging phenotypes in humans and mice. In this study, we hypothesized that unrepaired DNA damage contributes to accelerated kidney failure. We tested the use of the renin-activatable near-infrared fluorescent probe ReninSense680™ in progeroid Ercc1d/− mice and compared renin activity levels in vivo to wild-type mice. First, we validated the specificity of the probe by detecting increased intrarenal activity after losartan treatment and the virtual absence of fluorescence in renin knock-out mice. Second, age-related kidney pathology, tubular anisokaryosis, glomerulosclerosis and increased apoptosis were confirmed in the kidneys of 24-week-old Ercc1d/− mice, while initial renal development was normal. Next, we examined the in vivo renin activity in these Ercc1d/− mice. Interestingly, increased intrarenal renin activity was detected by ReninSense in Ercc1d/− compared to WT mice, while their plasma renin concentrations were lower. Hence, this study demonstrates that intrarenal RAS activity does not necessarily run in parallel with circulating renin in the aging mouse. In addition, our study supports the use of this probe for longitudinal imaging of altered RAS signaling in aging.
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Affiliation(s)
- Bibi S. van Thiel
- Department of Molecular Genetics, Cancer Genomics Center, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (B.S.v.T.); (J.v.d.L.); (Y.R.)
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
- Department of Vascular Surgery, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands
| | - Janette van der Linden
- Department of Molecular Genetics, Cancer Genomics Center, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (B.S.v.T.); (J.v.d.L.); (Y.R.)
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
- Department of Experimental Cardiology, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands
| | - Yanto Ridwan
- Department of Molecular Genetics, Cancer Genomics Center, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (B.S.v.T.); (J.v.d.L.); (Y.R.)
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
| | - Ingrid M. Garrelds
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
| | - Marcel Vermeij
- Department of Pathology, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (M.V.); (M.C.C.-v.G.)
| | | | | | - Natalia Alenina
- Max Delbrück Center, 13125 Berlin, Germany; (F.Q.); (N.A.); (M.B.)
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
| | - Michael Bader
- Max Delbrück Center, 13125 Berlin, Germany; (F.Q.); (N.A.); (M.B.)
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Charité—University Medicine, 10117 Berlin, Germany
- Institute for Biology, University of Lübeck, 23562 Lübeck, Germany
| | - Anton J. M. Roks
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
| | - A. H. Jan Danser
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (I.M.G.); (A.J.M.R.); (A.H.J.D.)
| | - Jeroen Essers
- Department of Molecular Genetics, Cancer Genomics Center, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (B.S.v.T.); (J.v.d.L.); (Y.R.)
- Department of Vascular Surgery, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands
- Department of Radiation Oncology, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands
- Correspondence: (J.E.); (I.v.d.P.); Tel.: +31-10-7043604 (J.E.); +31-10-7043724 (I.v.d.P.); Fax: +31-10-7044743 (J.E. & I.v.d.P.)
| | - Ingrid van der Pluijm
- Department of Molecular Genetics, Cancer Genomics Center, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands; (B.S.v.T.); (J.v.d.L.); (Y.R.)
- Department of Vascular Surgery, Erasmus University Medical Center, 3015GD Rotterdam, The Netherlands
- Correspondence: (J.E.); (I.v.d.P.); Tel.: +31-10-7043604 (J.E.); +31-10-7043724 (I.v.d.P.); Fax: +31-10-7044743 (J.E. & I.v.d.P.)
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8
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Napolitano T, Avolio F, Silvano S, Forcisi S, Pfeifer A, Vieira A, Navarro-Sanz S, Friano ME, Ayachi C, Garrido-Utrilla A, Atlija J, Hadzic B, Becam J, Sousa-De-Veiga A, Plaisant MD, Balaji S, Pisani DF, Mondin M, Schmitt-Kopplin P, Amri EZ, Collombat P. Gfi1 Loss Protects against Two Models of Induced Diabetes. Cells 2021; 10:cells10112805. [PMID: 34831029 PMCID: PMC8616283 DOI: 10.3390/cells10112805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/07/2021] [Accepted: 10/14/2021] [Indexed: 12/29/2022] Open
Abstract
Background: Although several approaches have revealed much about individual factors that regulate pancreatic development, we have yet to fully understand their complicated interplay during pancreas morphogenesis. Gfi1 is transcription factor specifically expressed in pancreatic acinar cells, whose role in pancreas cells fate identity and specification is still elusive. Methods: In order to gain further insight into the function of this factor in the pancreas, we generated animals deficient for Gfi1 specifically in the pancreas. Gfi1 conditional knockout animals were phenotypically characterized by immunohistochemistry, RT-qPCR, and RNA scope. To assess the role of Gfi1 in the pathogenesis of diabetes, we challenged Gfi1-deficient mice with two models of induced hyperglycemia: long-term high-fat/high-sugar feeding and streptozotocin injections. Results: Interestingly, mutant mice did not show any obvious deleterious phenotype. However, in depth analyses demonstrated a significant decrease in pancreatic amylase expression, leading to a diminution in intestinal carbohydrates processing and thus glucose absorption. In fact, Gfi1-deficient mice were found resistant to diet-induced hyperglycemia, appearing normoglycemic even after long-term high-fat/high-sugar diet. Another feature observed in mutant acinar cells was the misexpression of ghrelin, a hormone previously suggested to exhibit anti-apoptotic effects on β-cells in vitro. Impressively, Gfi1 mutant mice were found to be resistant to the cytotoxic and diabetogenic effects of high-dose streptozotocin administrations, displaying a negligible loss of β-cells and an imperturbable normoglycemia. Conclusions: Together, these results demonstrate that Gfi1 could turn to be extremely valuable for the development of new therapies and could thus open new research avenues in the context of diabetes research.
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Affiliation(s)
- Tiziana Napolitano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Fabio Avolio
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark;
| | - Serena Silvano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Sara Forcisi
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environment Health, 85764 Neuherberg, Germany; (S.F.); (P.S.-K.)
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Anja Pfeifer
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Andhira Vieira
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Marika Elsa Friano
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Chaïma Ayachi
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Anna Garrido-Utrilla
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Biljana Hadzic
- Pediatric Oncology & Hematology Department, Centre Hospitalier Universitaire de Nice, Hopital Archet 2, 06202 Nice, France;
| | - Jérôme Becam
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Anette Sousa-De-Veiga
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Magali Dodille Plaisant
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | | | - Didier F. Pisani
- Medicine Faculty, Université Côte d’Azur, CNRS, LP2M, 06003 Nice, France;
| | - Magali Mondin
- Pôle Imagerie Photonique, Bordeaux Imaging Center, Université de Bordeaux, UMS 3420 CNRS-US4 Inserm, 33076 Bordeaux, France;
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environment Health, 85764 Neuherberg, Germany; (S.F.); (P.S.-K.)
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Ez-Zoubir Amri
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
| | - Patrick Collombat
- Faculté des Sciences, Université Côte d’Azur, CNRS, Inserm, iBV, Parc Valrose, 06108 Nice, France; (T.N.); (S.S.); (A.P.); (A.V.); (M.E.F.); (C.A.); (A.G.-U.); (J.B.); (A.S.-D.-V.); (M.D.P.); (E.-Z.A.)
- Correspondence:
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9
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Schoberleitner I, Bauer I, Huang A, Andreyeva EN, Sebald J, Pascher K, Rieder D, Brunner M, Podhraski V, Oemer G, Cázarez-García D, Rieder L, Keller MA, Winkler R, Fyodorov DV, Lusser A. CHD1 controls H3.3 incorporation in adult brain chromatin to maintain metabolic homeostasis and normal lifespan. Cell Rep 2021; 37:109769. [PMID: 34610319 PMCID: PMC8607513 DOI: 10.1016/j.celrep.2021.109769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 07/26/2021] [Accepted: 09/08/2021] [Indexed: 01/31/2023] Open
Abstract
The ATP-dependent chromatin remodeling factor CHD1 is essential for the assembly of variant histone H3.3 into paternal chromatin during sperm chromatin remodeling in fertilized eggs. It remains unclear, however, if CHD1 has a similar role in normal diploid cells. Using a specifically tailored quantitative mass spectrometry approach, we show that Chd1 disruption results in reduced H3.3 levels in heads of Chd1 mutant flies. Chd1 deletion perturbs brain chromatin structure in a similar way as H3.3 deletion and leads to global de-repression of transcription. The physiological consequences are reduced food intake, metabolic alterations, and shortened lifespan. Notably, brain-specific CHD1 expression rescues these phenotypes. We further demonstrate a strong genetic interaction between Chd1 and H3.3 chaperone Hira. Thus, our findings establish CHD1 as a factor required for the assembly of H3.3-containing chromatin in adult cells and suggest a crucial role for CHD1 in the brain as a regulator of organismal health and longevity.
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Affiliation(s)
- Ines Schoberleitner
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Ingo Bauer
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Anming Huang
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Evgeniya N Andreyeva
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Johanna Sebald
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Katharina Pascher
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Dietmar Rieder
- Institute of Bioinformatics, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Melanie Brunner
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Valerie Podhraski
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Gregor Oemer
- Institute of Human Genetics, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Daniel Cázarez-García
- Department of Biotechnology and Biochemistry, Cinvestav Unidad Irapuato, Irapuato 36824, Mexico
| | - Leila Rieder
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Markus A Keller
- Institute of Human Genetics, Medical University of Innsbruck, Innsbruck 6020, Austria
| | - Robert Winkler
- Department of Biotechnology and Biochemistry, Cinvestav Unidad Irapuato, Irapuato 36824, Mexico
| | - Dmitry V Fyodorov
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
| | - Alexandra Lusser
- Institute of Molecular Biology, Biocenter, Medical University of Innsbruck, Innsbruck 6020, Austria.
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10
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Kuroda R, Tominaga K, Kasashima K, Kuroiwa K, Sakashita E, Hayakawa H, Kouki T, Ohno N, Kawai K, Endo H. Loss of mitochondrial transcription factor A in neural stem cells leads to immature brain development and triggers the activation of the integral stress response in vivo. PLoS One 2021; 16:e0255355. [PMID: 34320035 PMCID: PMC8318236 DOI: 10.1371/journal.pone.0255355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 07/14/2021] [Indexed: 11/18/2022] Open
Abstract
Mitochondrial dysfunction is significantly associated with neurological deficits and age-related neurological diseases. While mitochondria are dynamically regulated and properly maintained during neurogenesis, the manner in which mitochondrial activities are controlled and contribute to these processes is not fully understood. Mitochondrial transcription factor A (TFAM) contributes to mitochondrial function by maintaining mitochondrial DNA (mtDNA). To clarify how mitochondrial dysfunction affects neurogenesis, we induced mitochondrial dysfunction specifically in murine neural stem cells (NSCs) by inactivating Tfam. Tfam inactivation in NSCs resulted in mitochondrial dysfunction by reducing respiratory chain activities and causing a severe deficit in neural differentiation and maturation both in vivo and in vitro. Brain tissue from Tfam-deficient mice exhibited neuronal cell death primarily at layer V and microglia were activated prior to cell death. Cultured Tfam-deficient NSCs showed a reduction in reactive oxygen species produced by the mitochondria. Tfam inactivation during neurogenesis resulted in the accumulation of ATF4 and activation of target gene expression. Therefore, we propose that the integrated stress response (ISR) induced by mitochondrial dysfunction in neurogenesis is activated to protect the progression of neurodegenerative diseases.
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Affiliation(s)
- Rintaro Kuroda
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
- Department of Neurosurgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Kaoru Tominaga
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
- * E-mail: (KT); (HE)
| | - Katsumi Kasashima
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Kenji Kuroiwa
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Eiji Sakashita
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hiroko Hayakawa
- Core Center of Research Apparatus, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Tom Kouki
- Department of Anatomy, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Nobuhiko Ohno
- Department of Anatomy, Jichi Medical University, Shimotsuke, Tochigi, Japan
- Division of Ultrastructural Research, National Institute for Physiological Sciences, Okazaki, Aichi, Japan
| | - Kensuke Kawai
- Department of Neurosurgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hitoshi Endo
- Department of Biochemistry, Jichi Medical University, Shimotsuke, Tochigi, Japan
- * E-mail: (KT); (HE)
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11
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Fu Z, Dean JW, Xiong L, Dougherty MW, Oliff KN, Chen ZME, Jobin C, Garrett TJ, Zhou L. Mitochondrial transcription factor A in RORγt + lymphocytes regulate small intestine homeostasis and metabolism. Nat Commun 2021; 12:4462. [PMID: 34294718 PMCID: PMC8298438 DOI: 10.1038/s41467-021-24755-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
RORγt+ lymphocytes, including interleukin 17 (IL-17)-producing gamma delta T (γδT17) cells, T helper 17 (Th17) cells, and group 3 innate lymphoid cells (ILC3s), are important immune regulators. Compared to Th17 cells and ILC3s, γδT17 cell metabolism and its role in tissue homeostasis remains poorly understood. Here, we report that the tissue milieu shapes splenic and intestinal γδT17 cell gene signatures. Conditional deletion of mitochondrial transcription factor A (Tfam) in RORγt+ lymphocytes significantly affects systemic γδT17 cell maintenance and reduces ILC3s without affecting Th17 cells in the gut. In vivo deletion of Tfam in RORγt+ lymphocytes, especially in γδT17 cells, results in small intestine tissue remodeling and increases small intestine length by enhancing the type 2 immune responses in mice. Moreover, these mice show dysregulation of the small intestine transcriptome and metabolism with less body weight but enhanced anti-helminth immunity. IL-22, a cytokine produced by RORγt+ lymphocytes inhibits IL-13-induced tuft cell differentiation in vitro, and suppresses the tuft cell-type 2 immune circuit and small intestine lengthening in vivo, highlighting its key role in gut tissue remodeling.
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Affiliation(s)
- Zheng Fu
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Joseph W Dean
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Lifeng Xiong
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | | | - Kristen N Oliff
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Zong-Ming E Chen
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Christian Jobin
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
- Department of Medicine, University of Florida, Gainesville, FL, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Liang Zhou
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
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12
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Yuan M, Wang Y, Qin M, Zhao X, Chen X, Li D, Miao Y, Otieno Odhiambo W, Liu H, Ma Y, Ji Y. RAG enhances BCR-ABL1-positive leukemic cell growth through its endonuclease activity in vitro and in vivo. Cancer Sci 2021; 112:2679-2691. [PMID: 33949040 PMCID: PMC8253288 DOI: 10.1111/cas.14939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/15/2021] [Accepted: 04/30/2021] [Indexed: 12/14/2022] Open
Abstract
BCR-ABL1 gene fusion associated with additional DNA lesions involves the pathogenesis of chronic myelogenous leukemia (CML) from a chronic phase (CP) to a blast crisis of B lymphoid (CML-LBC) lineage and BCR-ABL1+ acute lymphoblastic leukemia (BCR-ABL1+ ALL). The recombination-activating gene RAG1 and RAG2 (collectively, RAG) proteins that assemble a diverse set of antigen receptor genes during lymphocyte development are abnormally expressed in CML-LBC and BCR-ABL1+ ALL. However, the direct involvement of dysregulated RAG in disease progression remains unclear. Here, we generate human wild-type (WT) RAG and catalytically inactive RAG-expressing BCR-ABL1+ and BCR-ABL1- cell lines, respectively, and demonstrate that BCR-ABL1 specifically collaborates with RAG recombinase to promote cell survival in vitro and in xenograft mice models. WT RAG-expressing BCR-ABL1+ cell lines and primary CD34+ bone marrow cells from CML-LBC samples maintain more double-strand breaks (DSB) compared to catalytically inactive RAG-expressing BCR-ABL1+ cell lines and RAG-deficient CML-CP samples, which are measured by γ-H2AX. WT RAG-expressing BCR-ABL1+ cells are biased to repair RAG-mediated DSB by the alternative non-homologous end joining pathway (a-NHEJ), which could contribute genomic instability through increasing the expression of a-NHEJ-related MRE11 and RAD50 proteins. As a result, RAG-expressing BCR-ABL1+ cells decrease sensitivity to tyrosine kinase inhibitors (TKI) by activating BCR-ABL1 signaling but independent of the levels of BCR-ABL1 expression and mutations in the BCR-ABL1 tyrosine kinase domain. These findings identify a surprising and novel role of RAG in the functional specialization of disease progression in BCR-ABL1+ leukemia through its endonuclease activity.
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MESH Headings
- Acid Anhydride Hydrolases/metabolism
- Animals
- Blast Crisis/genetics
- Blast Crisis/metabolism
- Cell Line, Tumor
- Cell Proliferation
- Cell Survival
- DNA Breaks, Double-Stranded
- DNA End-Joining Repair
- DNA-Binding Proteins/deficiency
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Disease Progression
- Endonucleases/metabolism
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Genomic Instability
- Heterografts
- Histones/analysis
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Humans
- In Vitro Techniques
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- MRE11 Homologue Protein/metabolism
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Nuclear Proteins/deficiency
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/metabolism
- Protein Kinase Inhibitors/therapeutic use
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Affiliation(s)
- Meng Yuan
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Yang Wang
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Mengting Qin
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Xiaohui Zhao
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Xiaodong Chen
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Dandan Li
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Yinsha Miao
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
- Department of Clinical laboratoryXi’an No. 3 HospitalThe Affiliated Hospital of Northwest UniversityXi’anChina
| | - Wood Otieno Odhiambo
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Huasheng Liu
- Department of HematologyThe First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Yunfeng Ma
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
| | - Yanhong Ji
- Department of Pathogenic Biology and Immunology, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
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13
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Liu Y, Su P, Zhao W, Li X, Yang X, Fan J, Yang H, Yan C, Mao L, Ding Y, Zhu J, Niu Z, Zhuang T. ZNF213 negatively controls triple negative breast cancer progression via Hippo/YAP signaling. Cancer Sci 2021; 112:2714-2727. [PMID: 33939216 PMCID: PMC8253295 DOI: 10.1111/cas.14916] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/18/2022] Open
Abstract
Breast cancer is one of the most commonly diagnosed malignancies worldwide, while the triple negative breast cancer (TNBC) is the most aggressive and virulent subtype in breast cancers. Compared with luminal type breast cancers, which could be well controlled by endocrine treatment, TNBC is worse in prognosis and lack of effective targeted therapy. Thus, it would be interesting and meaningful to identify novel therapeutic targets for TNBC treatments. Recent genomic data showed the activation of Hippo/YAP signaling in TNBC, indicating its critical roles in TNBC carcinogenesis and cancer progression. Hippo/YAP signaling could subject to several kinds of protein modifications, including ubiquitination and phosphorylation. Quite a few studies have demonstrated these modifications, which controlled YAP protein stability and turnover, played critical role in Hippo signaling activation In our current study, we identified ZNF213 as a negative modifier for Hippo/YAP axis. ZNF213 depletion promoted TNBC cell migration and invasion, which could be rescued by further YAP silencing. ZNF213 knocking down facilitated YAP protein stability and Hippo target gene expression, including CTGF and CYR61. Further mechanism studies demonstrated that ZNF213 associated with YAP and facilitated YAP K48-linked poly-ubiquitination at several YAP lysine sites (K252, K254, K321 and K497). Besides, the clinical data showed that ZNF213 negatively correlated with YAP protein level and Hippo target gene expression in TNBC samples. ZNF213 expression correlated with good prognosis in TNBC patients. Our data provided novel insights in YAP proteolytic regulation and TNBC progression.
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Affiliation(s)
- Yun Liu
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Peng Su
- Department of PathologyQilu HospitalCheeloo College of MedicineShandong UniversityJinanChina
| | - Wuchen Zhao
- School of International EducationXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Xin Li
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Xiao Yang
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Jianing Fan
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Huijie Yang
- Department of PharmacologySchool of Basic Medical SciencesTianjin Medical UniversityTianjinChina
| | - Cheng Yan
- School of MedicineXinxiang UniversityXinxiangChina
| | - Lanzhi Mao
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Yinlu Ding
- Department of General SurgeryThe Second HospitalCheeloo College of MedicineShandong UniversityShandong ProvinceChina
| | - Jian Zhu
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Department of General SurgeryThe Second HospitalCheeloo College of MedicineShandong UniversityShandong ProvinceChina
| | - Zhiguo Niu
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
| | - Ting Zhuang
- Xinxiang Key Laboratory of Tumor Migration and Invasion Precision MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
- Henan Key Laboratory of immunology and targeted therapySchool of Laboratory MedicineHenan Collaborative Innovation Center of Molecular Diagnosis and Laboratory MedicineSchool of Laboratory MedicineXinxiang Medical UniversityXinxiang, Henan ProvinceChina
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14
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Onodera A, González-Avalos E, Lio CWJ, Georges RO, Bellacosa A, Nakayama T, Rao A. Roles of TET and TDG in DNA demethylation in proliferating and non-proliferating immune cells. Genome Biol 2021; 22:186. [PMID: 34158086 PMCID: PMC8218415 DOI: 10.1186/s13059-021-02384-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 05/21/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND TET enzymes mediate DNA demethylation by oxidizing 5-methylcytosine (5mC) in DNA to 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine (5caC). Since these oxidized methylcytosines (oxi-mCs) are not recognized by the maintenance methyltransferase DNMT1, DNA demethylation can occur through "passive," replication-dependent dilution when cells divide. A distinct, replication-independent ("active") mechanism of DNA demethylation involves excision of 5fC and 5caC by the DNA repair enzyme thymine DNA glycosylase (TDG), followed by base excision repair. RESULTS Here by analyzing inducible gene-disrupted mice, we show that DNA demethylation during primary T cell differentiation occurs mainly through passive replication-dependent dilution of all three oxi-mCs, with only a negligible contribution from TDG. In addition, by pyridine borane sequencing (PB-seq), a simple recently developed method that directly maps 5fC/5caC at single-base resolution, we detect the accumulation of 5fC/5caC in TDG-deleted T cells. We also quantify the occurrence of concordant demethylation within and near enhancer regions in the Il4 locus. In an independent system that does not involve cell division, macrophages treated with liposaccharide accumulate 5hmC at enhancers and show altered gene expression without DNA demethylation; loss of TET enzymes disrupts gene expression, but loss of TDG has no effect. We also observe that mice with long-term (1 year) deletion of Tdg are healthy and show normal survival and hematopoiesis. CONCLUSIONS We have quantified the relative contributions of TET and TDG to cell differentiation and DNA demethylation at representative loci in proliferating T cells. We find that TET enzymes regulate T cell differentiation and DNA demethylation primarily through passive dilution of oxi-mCs. In contrast, while we observe a low level of active, replication-independent DNA demethylation mediated by TDG, this process does not appear to be essential for immune cell activation or differentiation.
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Affiliation(s)
- Atsushi Onodera
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
- Department of Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Institute for Global Prominent Research, Chiba University, 1-33, Yayoicho, Inage-ku, Chiba, 263-8522, Japan
| | - Edahí González-Avalos
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
- Bioinformatics and Systems Biology Graduate Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Chan-Wang Jerry Lio
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
- Present address: Department of Microbial Infection and Immunity, Ohio State University, 460 W 12th Ave, Columbus, OH, 43210, USA
| | - Romain O Georges
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA
| | - Alfonso Bellacosa
- Cancer Signaling and Epigenetics Program & Cancer Epigenetics Institute, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA, 19111, USA
| | - Toshinori Nakayama
- Department of Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- AMED-CREST, AMED, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Anjana Rao
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA, 92037, USA.
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
- Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA.
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15
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Wang X, Wang HY, Hu GS, Tang WS, Weng L, Zhang Y, Guo H, Yao SS, Liu SY, Zhang GL, Han Y, Liu M, Zhang XD, Cen X, Shen HF, Xiao N, Liu CQ, Wang HR, Huang J, Liu W, Li P, Zhao TJ. DDB1 binds histone reader BRWD3 to activate the transcriptional cascade in adipogenesis and promote onset of obesity. Cell Rep 2021; 35:109281. [PMID: 34161765 DOI: 10.1016/j.celrep.2021.109281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 04/17/2021] [Accepted: 05/28/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity has become a global pandemic. Identification of key factors in adipogenesis helps to tackle obesity and related metabolic diseases. Here, we show that DDB1 binds the histone reader BRWD3 to promote adipogenesis and diet-induced obesity. Although typically recognized as a component of the CUL4-RING E3 ubiquitin ligase complex, DDB1 stimulates adipogenesis independently of CUL4. A DDB1 mutant that does not bind CUL4A or CUL4B fully restores adipogenesis in DDB1-deficient cells. Ddb1+/- mice show delayed postnatal development of white adipose tissues and are protected from diet-induced obesity. Mechanistically, by interacting with BRWD3, DDB1 is recruited to acetylated histones in the proximal promoters of ELK1 downstream immediate early response genes and facilitates the release of paused RNA polymerase II, thereby activating the transcriptional cascade in adipogenesis. Our findings have uncovered a CUL4-independent function of DDB1 in promoting the transcriptional cascade of adipogenesis, development of adipose tissues, and onset of obesity.
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Affiliation(s)
- Xu Wang
- Shanghai Key Laboratory of Metabolic Remodeling and Disease, Institute of Metabolism and Integrative Biology, Zhongshan Hospital, Fudan University, and Shanghai Qi Zhi Institute, Shanghai, China; State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Hao-Yan Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Guo-Sheng Hu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen, Fujian, China
| | - Wen-Shuai Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Li Weng
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Yuzhu Zhang
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China
| | - Huiling Guo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Shan-Shan Yao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Shen-Ying Liu
- Shanghai Key Laboratory of Metabolic Remodeling and Disease, Institute of Metabolism and Integrative Biology, Zhongshan Hospital, Fudan University, and Shanghai Qi Zhi Institute, Shanghai, China
| | - Guo-Liang Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Yan Han
- Department of Endocrinology and Diabetes, the First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - Min Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Xiao-Dong Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Xiang Cen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Hai-Feng Shen
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen, Fujian, China
| | - Nengming Xiao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Chang-Qin Liu
- Department of Endocrinology and Diabetes, the First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - Hong-Rui Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Jing Huang
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China
| | - Wen Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen, Fujian, China
| | - Peng Li
- Shanghai Key Laboratory of Metabolic Remodeling and Disease, Institute of Metabolism and Integrative Biology, Zhongshan Hospital, Fudan University, and Shanghai Qi Zhi Institute, Shanghai, China; State Key Laboratory of Membrane Biology and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Tong-Jin Zhao
- Shanghai Key Laboratory of Metabolic Remodeling and Disease, Institute of Metabolism and Integrative Biology, Zhongshan Hospital, Fudan University, and Shanghai Qi Zhi Institute, Shanghai, China; State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China.
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16
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Gerber TS, Agaimy A, Hartmann A, Habekost M, Roth W, Stenzinger A, Schirmacher P, Straub BK. SWI/SNF-deficient undifferentiated/rhabdoid carcinoma of the gallbladder carrying a POLE mutation in a 30-year-old woman: a case report. Diagn Pathol 2021; 16:52. [PMID: 34118935 PMCID: PMC8196506 DOI: 10.1186/s13000-021-01112-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/28/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Undifferentiated carcinoma of the biliary tract are highly aggressive malignancies. In other organs, a subgroup of undifferentiated carcinoma related to SWI/SNF complex-deficiency have been described. CASE PRESENTATION A 30-year-old woman presented with rising inflammatory markers (C-reactive protein (CRP)). Ultrasound examination revealed a large tumor of the liver. A computed tomography scan was performed and was primarily interpreted as a tumor-forming liver abscess, possibly caused by gallbladder perforation. Subsequent liver segment resection was performed. Microscopic examination showed an undifferentiated carcinoma with rhabdoid morphology and prominent inflammatory infiltrate in the gallbladder base. With SWI/SNF immunohistochemistry, intact expression of SMARCB1, SMARCA4, ARID1A, but loss of SMARCA2 and PBRM1 was detected. Next-generation-sequencing detected KRAS, PBRM1 and ARID1B mutations, a deleterious splice-site mutation in the POLE-gene and a mutation in the TP53-gene. CONCLUSIONS We were able to demonstrate loss of SMARCA2 expression and mutations characteristic of an SWI/SNF-deficient carcinoma in a tumor derived from the gallbladder. This is the first reported case of an undifferentiated carcinoma with rhabdoid features in the gallbladder carrying a POLE mutation and SWI/SNF-deficiency of PBRM1 and SMARCA2.
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Affiliation(s)
- Tiemo S Gerber
- Institute of Pathology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Abbas Agaimy
- Institute of Pathology, Erlangen University Hospital, Erlangen, Germany
| | - Arndt Hartmann
- Institute of Pathology, Erlangen University Hospital, Erlangen, Germany
| | - Michael Habekost
- Department of General- and Visceral Surgery, Agaplesion Markus Krankenhaus, Frankfurt am Main, Germany
| | - Wilfried Roth
- Institute of Pathology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | | | - Peter Schirmacher
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Beate K Straub
- Institute of Pathology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany.
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17
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Penev A, Bazley A, Shen M, Boeke JD, Savage SA, Sfeir A. Alternative splicing is a developmental switch for hTERT expression. Mol Cell 2021; 81:2349-2360.e6. [PMID: 33852895 PMCID: PMC8943697 DOI: 10.1016/j.molcel.2021.03.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 01/02/2023]
Abstract
Telomere length control is critical for cellular lifespan and tumor suppression. Telomerase is transiently activated in the inner cell mass of the developing blastocyst to reset telomere reserves. Its silencing upon differentiation leads to gradual telomere shortening in somatic cells. Here, we report that transcriptional regulation through cis-regulatory elements only partially accounts for telomerase activation in pluripotent cells. Instead, developmental control of telomerase is primarily driven by an alternative splicing event, centered around hTERT exon 2. Skipping of exon 2 triggers hTERT mRNA decay in differentiated cells, and conversely, its retention promotes telomerase accumulation in pluripotent cells. We identify SON as a regulator of exon 2 alternative splicing and report a patient carrying a SON mutation and suffering from insufficient telomerase and short telomeres. In summary, our study highlights a critical role for hTERT alternative splicing in the developmental regulation of telomerase and implicates defective splicing in telomere biology disorders.
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Affiliation(s)
- Alex Penev
- Skirball Institute of Biomolecular Medicine, Department of Cell Biology, NYU School of Medicine, New York, NY 10016, USA
| | - Andrew Bazley
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, NYU Langone Health, New York, NY 10016, USA
| | - Michael Shen
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, NYU Langone Health, New York, NY 10016, USA
| | - Jef D Boeke
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, NYU Langone Health, New York, NY 10016, USA; Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
| | - Sharon A Savage
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | - Agnel Sfeir
- Skirball Institute of Biomolecular Medicine, Department of Cell Biology, NYU School of Medicine, New York, NY 10016, USA.
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18
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Chabanon RM, Morel D, Eychenne T, Colmet-Daage L, Bajrami I, Dorvault N, Garrido M, Meisenberg C, Lamb A, Ngo C, Hopkins SR, Roumeliotis TI, Jouny S, Hénon C, Kawai-Kawachi A, Astier C, Konde A, Del Nery E, Massard C, Pettitt SJ, Margueron R, Choudhary JS, Almouzni G, Soria JC, Deutsch E, Downs JA, Lord CJ, Postel-Vinay S. PBRM1 Deficiency Confers Synthetic Lethality to DNA Repair Inhibitors in Cancer. Cancer Res 2021; 81:2888-2902. [PMID: 33888468 DOI: 10.1158/0008-5472.can-21-0628] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 11/16/2022]
Abstract
Inactivation of Polybromo 1 (PBRM1), a specific subunit of the PBAF chromatin remodeling complex, occurs frequently in cancer, including 40% of clear cell renal cell carcinomas (ccRCC). To identify novel therapeutic approaches to targeting PBRM1-defective cancers, we used a series of orthogonal functional genomic screens that identified PARP and ATR inhibitors as being synthetic lethal with PBRM1 deficiency. The PBRM1/PARP inhibitor synthetic lethality was recapitulated using several clinical PARP inhibitors in a series of in vitro model systems and in vivo in a xenograft model of ccRCC. In the absence of exogenous DNA damage, PBRM1-defective cells exhibited elevated levels of replication stress, micronuclei, and R-loops. PARP inhibitor exposure exacerbated these phenotypes. Quantitative mass spectrometry revealed that multiple R-loop processing factors were downregulated in PBRM1-defective tumor cells. Exogenous expression of the R-loop resolution enzyme RNase H1 reversed the sensitivity of PBRM1-deficient cells to PARP inhibitors, suggesting that excessive levels of R-loops could be a cause of this synthetic lethality. PARP and ATR inhibitors also induced cyclic GMP-AMP synthase/stimulator of interferon genes (cGAS/STING) innate immune signaling in PBRM1-defective tumor cells. Overall, these findings provide the preclinical basis for using PARP inhibitors in PBRM1-defective cancers. SIGNIFICANCE: This study demonstrates that PARP and ATR inhibitors are synthetic lethal with the loss of PBRM1, a PBAF-specific subunit, thus providing the rationale for assessing these inhibitors in patients with PBRM1-defective cancer. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/11/2888/F1.large.jpg.
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MESH Headings
- Animals
- Apoptosis
- Ataxia Telangiectasia Mutated Proteins/antagonists & inhibitors
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Renal Cell/drug therapy
- Carcinoma, Renal Cell/genetics
- Carcinoma, Renal Cell/metabolism
- Carcinoma, Renal Cell/pathology
- Cell Proliferation
- DNA Repair
- DNA-Binding Proteins/deficiency
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Kidney Neoplasms/drug therapy
- Kidney Neoplasms/genetics
- Kidney Neoplasms/metabolism
- Kidney Neoplasms/pathology
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Poly(ADP-ribose) Polymerase Inhibitors/pharmacology
- Synthetic Lethal Mutations
- Transcription Factors/deficiency
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Roman M Chabanon
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Daphné Morel
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
- Université Paris Saclay, Université Paris-Sud, Faculté de Médicine, Le Kremlin Bicêtre, France
| | - Thomas Eychenne
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Léo Colmet-Daage
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Ilirjana Bajrami
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Nicolas Dorvault
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Marlène Garrido
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Cornelia Meisenberg
- Epigenetics and Genome Stability Team, The Institute of Cancer Research, London, United Kingdom
| | | | - Carine Ngo
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Suzanna R Hopkins
- Epigenetics and Genome Stability Team, The Institute of Cancer Research, London, United Kingdom
| | | | - Samuel Jouny
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Clémence Hénon
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | | | - Clémence Astier
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France
| | - Asha Konde
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Elaine Del Nery
- Institut Curie, PSL Research University, Department of Translational Research, The Biophenics High-Content Screening Laboratory, Cell and Tissue Imaging Facility (PICT-IBiSA), Paris, France
| | | | - Stephen J Pettitt
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Raphaël Margueron
- Institut Curie, PSL Research University, INSERM Unit U934, CNRS UMR 3215, Paris, France
| | - Jyoti S Choudhary
- Functional Proteomics Team, The Institute of Cancer Research, London, United Kingdom
| | - Geneviève Almouzni
- Institut Curie, PSL Research University, CNRS, UMR 3664, Equipe Labellisée Ligue contre le Cancer, Paris, France
- Sorbonne Universités, UPMC Université Paris-VI, CNRS, UMR3664, Paris, France
| | - Jean-Charles Soria
- Université Paris Saclay, Université Paris-Sud, Faculté de Médicine, Le Kremlin Bicêtre, France
| | - Eric Deutsch
- Université Paris Saclay, Université Paris-Sud, Faculté de Médicine, Le Kremlin Bicêtre, France
- INSERM UMR1030 Molecular Radiotherapy and Therapeutic Innovations, Gustave Roussy, Villejuif, France
| | - Jessica A Downs
- Epigenetics and Genome Stability Team, The Institute of Cancer Research, London, United Kingdom
| | - Christopher J Lord
- The CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom.
| | - Sophie Postel-Vinay
- ATIP-Avenir group, Inserm Unit U981, Gustave Roussy, Villejuif, France.
- Université Paris Saclay, Université Paris-Sud, Faculté de Médicine, Le Kremlin Bicêtre, France
- Drug Development Department, DITEP, Gustave Roussy, Villejuif, France
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19
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Helmer RA, Martinez-Zaguilan R, Kaur G, Smith LA, Dufour JM, Chilton BS. Helicase-like transcription factor-deletion from the tumor microenvironment in a cell line-derived xenograft model of colorectal cancer reprogrammed the human transcriptome-S-nitroso-proteome to promote inflammation and redirect metastasis. PLoS One 2021; 16:e0251132. [PMID: 34010296 PMCID: PMC8133447 DOI: 10.1371/journal.pone.0251132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/19/2021] [Indexed: 02/07/2023] Open
Abstract
Methylation of the HLTF gene in colorectal cancer (CRC) cells occurs more frequently in men than women. Progressive epigenetic silencing of HLTF in tumor cells is accompanied by negligible expression in the tumor microenvironment (TME). Cell line-derived xenografts (CDX) were established in control (Hltf+/+) and Hltf-deleted male Rag2-/-IL2rg-/- mice by direct orthotopic cell microinjection (OCMI) of HLTF+/+HCT116 Red-FLuc cells into the submucosa of the cecum. Combinatorial induction of IL6 and S100A8/A9 in the Hltf-deleted TME with ICAM-1 and IL8 in the primary tumor activated a positive feedback loop. The proinflammatory niche produced a major shift in CDX metastasis to peritoneal dissemination compared to controls. Inducible nitric oxide (iNOS) gene expression and transactivation of the iNOS-S100A8/A9 signaling complex in Hltf-deleted TME reprogrammed the human S-nitroso-proteome. POTEE, TRIM52 and UN45B were S-nitrosylated on the conserved I/L-X-C-X2-D/E motif indicative of iNOS-S100A8/A9-mediated S-nitrosylation. 2D-DIGE and protein identification by MALDI-TOF/TOF mass spectrometry authenticated S-nitrosylation of 53 individual cysteines in half-site motifs (I/L-X-C or C-X-X-D/E) in CDX tumors. POTEE in CDX tumors is both a general S-nitrosylation target and an iNOS-S100A8/A9 site-specific (Cys638) target in the Hltf-deleted TME. REL is an example of convergence of transcriptomic-S-nitroso-proteomic signaling. The gene is transcriptionally activated in CDX tumors with an Hltf-deleted TME, and REL-SNO (Cys143) was found in primary CDX tumors and all metastatic sites. Primary CDX tumors from Hltf-deleted TME shared 60% of their S-nitroso-proteome with all metastatic sites. Forty percent of SNO-proteins from primary CDX tumors were variably expressed at metastatic sites. Global S-nitrosylation of proteins in pathways related to cytoskeleton and motility was strongly implicated in the metastatic dissemination of CDX tumors. Hltf-deletion from the TME played a major role in the pathogenesis of inflammation and linked protein S-nitrosylation in primary CDX tumors with spatiotemporal continuity in metastatic progression when the tumor cells expressed HLTF.
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Affiliation(s)
- Rebecca A. Helmer
- Department of Cell Biology & Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Raul Martinez-Zaguilan
- Department of Cell Physiology & Molecular Biophysics, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Gurvinder Kaur
- Department of Medical Education, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Lisa A. Smith
- Department of Pathology, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Jannette M. Dufour
- Department of Cell Biology & Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Beverly S. Chilton
- Department of Cell Biology & Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
- Cancer Center, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
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20
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Liu S, Cao W, Niu Y, Luo J, Zhao Y, Hu Z, Zong C. Single-PanIN-seq unveils that ARID1A deficiency promotes pancreatic tumorigenesis by attenuating KRAS-induced senescence. eLife 2021; 10:e64204. [PMID: 33983114 PMCID: PMC8203294 DOI: 10.7554/elife.64204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 05/12/2021] [Indexed: 12/13/2022] Open
Abstract
ARID1A is one of the most frequently mutated epigenetic regulators in a wide spectrum of cancers. Recent studies have shown that ARID1A deficiency induces global changes in the epigenetic landscape of enhancers and promoters. These broad and complex effects make it challenging to identify the driving mechanisms of ARID1A deficiency in promoting cancer progression. Here, we identified the anti-senescence effect of Arid1a deficiency in the progression of pancreatic intraepithelial neoplasia (PanIN) by profiling the transcriptome of individual PanINs in a mouse model. In a human cell line model, we found that ARID1A deficiency upregulates the expression of aldehyde dehydrogenase 1 family member A1 (ALDH1A1), which plays an essential role in attenuating the senescence induced by oncogenic KRAS through scavenging reactive oxygen species. As a subunit of the SWI/SNF chromatin remodeling complex, our ATAC sequencing data showed that ARID1A deficiency increases the accessibility of the enhancer region of ALDH1A1. This study provides the first evidence that ARID1A deficiency promotes pancreatic tumorigenesis by attenuating KRAS-induced senescence through the upregulation of ALDH1A1 expression.
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Affiliation(s)
- Shou Liu
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
| | - Wenjian Cao
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
- Genetics and Genomics Graduate Program, Baylor College of MedicineHoustonUnited States
| | - Yichi Niu
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
- Genetics and Genomics Graduate Program, Baylor College of MedicineHoustonUnited States
| | - Jiayi Luo
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
- Cancer and Cell, Biology Graduate Program, Baylor College of MedicineHoustonUnited States
| | - Yanhua Zhao
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
| | - Zhiying Hu
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
| | - Chenghang Zong
- Department of Molecular and Human Genetics, Baylor College of MedicineHoustonUnited States
- Genetics and Genomics Graduate Program, Baylor College of MedicineHoustonUnited States
- Cancer and Cell, Biology Graduate Program, Baylor College of MedicineHoustonUnited States
- Dan L Duncan Comprehensive Cancer Center, Baylor College of MedicineHoustonUnited States
- McNair Medical Institute, Baylor College of MedicineHoustonUnited States
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21
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Kobiita A, Godbersen S, Araldi E, Ghoshdastider U, Schmid MW, Spinas G, Moch H, Stoffel M. The Diabetes Gene JAZF1 Is Essential for the Homeostatic Control of Ribosome Biogenesis and Function in Metabolic Stress. Cell Rep 2021; 32:107846. [PMID: 32640216 DOI: 10.1016/j.celrep.2020.107846] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/23/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023] Open
Abstract
The ability of pancreatic β-cells to respond to increased demands for insulin during metabolic stress critically depends on proper ribosome homeostasis and function. Excessive and long-lasting stimulation of insulin secretion can elicit endoplasmic reticulum (ER) stress, unfolded protein response, and β-cell apoptosis. Here we show that the diabetes susceptibility gene JAZF1 is a key transcriptional regulator of ribosome biogenesis, global protein, and insulin translation. JAZF1 is excluded from the nucleus, and its expression levels are reduced upon metabolic stress and in diabetes. Genetic deletion of Jazf1 results in global impairment of protein synthesis that is mediated by defects in ribosomal protein synthesis, ribosomal RNA processing, and aminoacyl-synthetase expression, thereby inducing ER stress and increasing β-cell susceptibility to apoptosis. Importantly, JAZF1 function and its pleiotropic actions are impaired in islets of murine T2D and in human islets exposed to metabolic stress. Our study identifies JAZF1 as a central mediator of metabolic stress in β-cells.
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Affiliation(s)
- Ahmad Kobiita
- Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, HPL H36, 8093 Zürich, Switzerland
| | - Svenja Godbersen
- Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, HPL H36, 8093 Zürich, Switzerland
| | - Elisa Araldi
- Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, HPL H36, 8093 Zürich, Switzerland
| | - Umesh Ghoshdastider
- Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, HPL H36, 8093 Zürich, Switzerland
| | - Marc W Schmid
- MWSchmid GmbH, Möhrlistrasse 25, 8006 Zurich, Switzerland
| | - Giatgen Spinas
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitäts-Spital Zürich, Rämistrasse 100, 8091 Zürich, Switzerland
| | - Holger Moch
- Department of Pathology and Molecular Pathology, University and University Hospital Zürich, Schmelzbergstrasse 12, 8091 Zürich, Switzerland
| | - Markus Stoffel
- Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, HPL H36, 8093 Zürich, Switzerland; Medical Faculty, University of Zurich, Zurich, Switzerland.
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22
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Dunker W, Ye X, Zhao Y, Liu L, Richardson A, Karijolich J. TDP-43 prevents endogenous RNAs from triggering a lethal RIG-I-dependent interferon response. Cell Rep 2021; 35:108976. [PMID: 33852834 PMCID: PMC8109599 DOI: 10.1016/j.celrep.2021.108976] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/01/2021] [Accepted: 03/19/2021] [Indexed: 12/16/2022] Open
Abstract
RIG-I-like receptors (RLRs) are involved in the discrimination of self versus non-self via the recognition of double-stranded RNA (dsRNA). Emerging evidence suggests that immunostimulatory dsRNAs are ubiquitously expressed but are disrupted or sequestered by cellular RNA binding proteins (RBPs). TDP-43 is an RBP associated with multiple neurological disorders and is essential for cell viability. Here, we demonstrate that TDP-43 regulates the accumulation of immunostimulatory dsRNA. The immunostimulatory RNA is identified as RNA polymerase III transcripts, including 7SL and Alu retrotransposons, and we demonstrate that the RNA-binding activity of TDP-43 is required to prevent immune stimulation. The dsRNAs activate a RIG-I-dependent interferon (IFN) response, which promotes necroptosis. Genetic inactivation of the RLR-pathway rescues the interferon-mediated cell death associated with loss of TDP-43. Collectively, our study describes a role for TDP-43 in preventing the accumulation of endogenous immunostimulatory dsRNAs and uncovers an intricate relationship between the control of cellular gene expression and IFN-mediated cell death.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/immunology
- Alu Elements
- Cell Line, Tumor
- Cell Survival
- Cytokines/genetics
- Cytokines/immunology
- DEAD Box Protein 58/antagonists & inhibitors
- DEAD Box Protein 58/genetics
- DEAD Box Protein 58/immunology
- DNA-Binding Proteins/deficiency
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- Epithelial Cells/immunology
- Epithelial Cells/virology
- Gene Expression Regulation
- HEK293 Cells
- Herpesvirus 8, Human/genetics
- Herpesvirus 8, Human/growth & development
- Herpesvirus 8, Human/immunology
- Humans
- Immunization
- Interferons/genetics
- Interferons/immunology
- Interleukin-6/genetics
- Interleukin-6/immunology
- Necroptosis/genetics
- Necroptosis/immunology
- Neurons/immunology
- Neurons/virology
- RNA Polymerase III/genetics
- RNA Polymerase III/immunology
- RNA, Double-Stranded/genetics
- RNA, Double-Stranded/immunology
- RNA, Messenger/genetics
- RNA, Messenger/immunology
- RNA, Small Cytoplasmic/genetics
- RNA, Small Cytoplasmic/immunology
- RNA, Viral/genetics
- RNA, Viral/immunology
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/immunology
- Receptors, Immunologic/antagonists & inhibitors
- Receptors, Immunologic/genetics
- Receptors, Immunologic/immunology
- Signal Recognition Particle/genetics
- Signal Recognition Particle/immunology
- Signal Transduction
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/immunology
- Ubiquitins/genetics
- Ubiquitins/immunology
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Affiliation(s)
- William Dunker
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA
| | - Xiang Ye
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA
| | - Yang Zhao
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA
| | - Lanxi Liu
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA
| | - Antiana Richardson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA
| | - John Karijolich
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA; Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-2363, USA; Vanderbilt-Ingram Cancer Center, Nashville, TN 37232-2363, USA; Vanderbilt Institute for Infection, Immunology and Inflammation, Nashville, TN 37232-2363, USA; Vanderbilt Center for Immunobiology, Nashville, TN 37232-2363, USA.
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23
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Du J, Jing J, Yuan Y, Feng J, Han X, Chen S, Li X, Peng W, Xu J, Ho TV, Jiang X, Chai Y. Arid1a-Plagl1-Hh signaling is indispensable for differentiation-associated cell cycle arrest of tooth root progenitors. Cell Rep 2021; 35:108964. [PMID: 33826897 PMCID: PMC8132592 DOI: 10.1016/j.celrep.2021.108964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 02/10/2021] [Accepted: 03/17/2021] [Indexed: 12/04/2022] Open
Abstract
Chromatin remodelers often show broad expression patterns in multiple cell types yet can elicit cell-specific effects in development and diseases. Arid1a binds DNA and regulates gene expression during tissue development and homeostasis. However, it is unclear how Arid1a achieves its functional specificity in regulating progenitor cells. Using the tooth root as a model, we show that loss of Arid1a impairs the differentiation-associated cell cycle arrest of tooth root progenitors through Hedgehog (Hh) signaling regulation, leading to shortened roots. Our data suggest that Plagl1, as a co-factor, endows Arid1a with its cell-type/spatial functional specificity. Furthermore, we show that loss of Arid1a leads to increased expression of Arid1b, which is also indispensable for odontoblast differentiation but is not involved in regulation of Hh signaling. This study expands our knowledge of the intricate interactions among chromatin remodelers, transcription factors, and signaling molecules during progenitor cell fate determination and lineage commitment.
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Affiliation(s)
- Jiahui Du
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA; Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Junjun Jing
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Yuan Yuan
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Jifan Feng
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Xia Han
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Shuo Chen
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Xiang Li
- Department of Physics, George Washington University, Washington, DC 20052, USA
| | - Weiqun Peng
- Department of Physics, George Washington University, Washington, DC 20052, USA
| | - Jian Xu
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Thach-Vu Ho
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yang Chai
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA 90033, USA.
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24
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Kawamura A, Katayama Y, Kakegawa W, Ino D, Nishiyama M, Yuzaki M, Nakayama KI. The autism-associated protein CHD8 is required for cerebellar development and motor function. Cell Rep 2021; 35:108932. [PMID: 33826902 DOI: 10.1016/j.celrep.2021.108932] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 12/24/2020] [Accepted: 03/11/2021] [Indexed: 12/11/2022] Open
Abstract
Mutations in the gene encoding the chromatin remodeler chromodomain helicase DNA-binding protein 8 (CHD8) are a highly penetrant risk factor for autism spectrum disorder (ASD). Although cerebellar abnormalities have long been thought to be related to ASD pathogenesis, it has remained largely unknown whether dysfunction of CHD8 in the cerebellum contributes to ASD phenotypes. We here show that cerebellar granule neuron progenitor (GNP)-specific deletion of Chd8 in mice impairs the proliferation and differentiation of these cells as well as gives rise to cerebellar hypoplasia and a motor coordination defect, but not to ASD-like behavioral abnormalities. CHD8 is found to regulate the expression of neuronal genes in GNPs. It also binds preferentially to promoter regions and modulates local chromatin accessibility of transcriptionally active genes in these cells. Our results have thus uncovered a key role for CHD8 in cerebellar development, with important implications for understanding the contribution of this brain region to ASD pathogenesis.
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Affiliation(s)
- Atsuki Kawamura
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Department of Histology and Cell Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan
| | - Yuta Katayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan.
| | - Wataru Kakegawa
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Daisuke Ino
- Department of Histology and Cell Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan
| | - Masaaki Nishiyama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Department of Histology and Cell Biology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa 920-8640, Japan
| | - Michisuke Yuzaki
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan.
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25
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Kim HI, Kim TH, Yoo JY, Young SL, Lessey BA, Ku BJ, Jeong JW. ARID1A and PGR proteins interact in the endometrium and reveal a positive correlation in endometriosis. Biochem Biophys Res Commun 2021; 550:151-157. [PMID: 33706098 DOI: 10.1016/j.bbrc.2021.02.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 02/28/2021] [Indexed: 11/16/2022]
Abstract
Endometriosis is a disorder in which endometrial cells normally limited to the lining of the uterus proliferate outside the uterine cavity and can cause pelvic pain and infertility. ARID1A levels are significantly reduced in the eutopic endometrium from women with endometriosis. Uterine specific Arid1a knock-out mice were infertile due to loss of epithelial progesterone receptor (PGR) signaling. However, the functional association of ARID1A and PGR in endometriosis has not been studied. We examined the expression patterns and co-localization of ARID1A and PGR in eutopic endometrium from women with and without endometriosis using immunostaining and Western blot analysis. ARID1A and PGR proteins co-localized in the epithelium during the proliferative and the early secretory phases. Our immunoprecipitation analysis and proximity ligation assay (PLA) revealed physical interaction between ARID1A and PGR-A but not PGR-B in the mouse and human endometrium. ARID1A levels positively correlated with PGR levels in the eutopic endometrium of women with endometriosis. Our results bring new perspectives on the molecular mechanisms involved in endometrial receptivity and progesterone resistance in endometriosis. The interrelationship between ARID1A and PGR may contribute to explaining the non-receptive endometrium in endometriosis-related infertility.
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Affiliation(s)
- Hong Im Kim
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI, 49503, USA
| | - Tae Hoon Kim
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI, 49503, USA
| | - Jung-Yoon Yoo
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI, 49503, USA; Life Science Institute, Repure Life Science, Seoul, 03722, Republic of Korea
| | - Steven L Young
- Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Bruce A Lessey
- Department of Obstetrics and Gynecology, Wake Forest Baptist Health, Winston-Salem, NC, 27157, USA
| | - Bon Jeong Ku
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, 35015, Republic of Korea.
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI, 49503, USA.
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26
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Mann N, Mzoughi S, Schneider R, Kühl SJ, Schanze D, Klämbt V, Lovric S, Mao Y, Shi S, Tan W, Kühl M, Onuchic-Whitford AC, Treimer E, Kitzler TM, Kause F, Schumann S, Nakayama M, Buerger F, Shril S, van der Ven AT, Majmundar AJ, Holton KM, Kolb A, Braun DA, Rao J, Jobst-Schwan T, Mildenberger E, Lennert T, Kuechler A, Wieczorek D, Gross O, Ermisch-Omran B, Werberger A, Skalej M, Janecke AR, Soliman NA, Mane SM, Lifton RP, Kadlec J, Guccione E, Schmeisser MJ, Zenker M, Hildebrandt F. Mutations in PRDM15 Are a Novel Cause of Galloway-Mowat Syndrome. J Am Soc Nephrol 2021; 32:580-596. [PMID: 33593823 PMCID: PMC7920168 DOI: 10.1681/asn.2020040490] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/18/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Galloway-Mowat syndrome (GAMOS) is characterized by neurodevelopmental defects and a progressive nephropathy, which typically manifests as steroid-resistant nephrotic syndrome. The prognosis of GAMOS is poor, and the majority of children progress to renal failure. The discovery of monogenic causes of GAMOS has uncovered molecular pathways involved in the pathogenesis of disease. METHODS Homozygosity mapping, whole-exome sequencing, and linkage analysis were used to identify mutations in four families with a GAMOS-like phenotype, and high-throughput PCR technology was applied to 91 individuals with GAMOS and 816 individuals with isolated nephrotic syndrome. In vitro and in vivo studies determined the functional significance of the mutations identified. RESULTS Three biallelic variants of the transcriptional regulator PRDM15 were detected in six families with proteinuric kidney disease. Four families with a variant in the protein's zinc-finger (ZNF) domain have additional GAMOS-like features, including brain anomalies, cardiac defects, and skeletal defects. All variants destabilize the PRDM15 protein, and the ZNF variant additionally interferes with transcriptional activation. Morpholino oligonucleotide-mediated knockdown of Prdm15 in Xenopus embryos disrupted pronephric development. Human wild-type PRDM15 RNA rescued the disruption, but the three PRDM15 variants did not. Finally, CRISPR-mediated knockout of PRDM15 in human podocytes led to dysregulation of several renal developmental genes. CONCLUSIONS Variants in PRDM15 can cause either isolated nephrotic syndrome or a GAMOS-type syndrome on an allelic basis. PRDM15 regulates multiple developmental kidney genes, and is likely to play an essential role in renal development in humans.
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Affiliation(s)
- Nina Mann
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Slim Mzoughi
- Methyltransferases in Development and Disease Group, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ronen Schneider
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Susanne J Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Verena Klämbt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Svjetlana Lovric
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Youying Mao
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shasha Shi
- Grenoble Alpes University, National Center for Scientific Research (CNRS), French Alternative Energies and Atomic Energy Commission (CEA), Institute of Structural Biology, Grenoble, France
| | - Weizhen Tan
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Michael Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Ana C Onuchic-Whitford
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ernestine Treimer
- Institute for Microscopic Anatomy and Neurobiology, University Medical Center, Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Thomas M Kitzler
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Franziska Kause
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sven Schumann
- Institute for Microscopic Anatomy and Neurobiology, University Medical Center, Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Makiko Nakayama
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Florian Buerger
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shirlee Shril
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Amelie T van der Ven
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Amar J Majmundar
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Amy Kolb
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Daniela A Braun
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jia Rao
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Tilman Jobst-Schwan
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Eva Mildenberger
- Division of Neonatology, University Medical Center, Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Thomas Lennert
- Department of Pediatrics, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Alma Kuechler
- Institute of Human Genetics, University of Duisburg-Essen, Essen, Germany
| | - Dagmar Wieczorek
- Institute of Human Genetics, Faculty of Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Oliver Gross
- Clinic of Nephrology and Rheumatology, University Medical Center Goettingen, University of Goettingen, Goettingen, Germany
| | - Beate Ermisch-Omran
- Department of Pediatric Nephrology, University Children's Hospital, Münster, Germany
| | - Anja Werberger
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Martin Skalej
- Institute of Neuroradiology, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Andreas R Janecke
- Department of Pediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Neveen A Soliman
- Department of Pediatrics, Center of Pediatric Nephrology and Transplantation, Kasr Al Ainy School of Medicine, Cairo University, Cairo, Egypt
- The Egyption Group for Orphan Renal Diseases (EGORD), Cairo, Egypt
| | - Shrikant M Mane
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
| | - Richard P Lifton
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, New York
| | - Jan Kadlec
- Grenoble Alpes University, National Center for Scientific Research (CNRS), French Alternative Energies and Atomic Energy Commission (CEA), Institute of Structural Biology, Grenoble, France
| | - Ernesto Guccione
- Methyltransferases in Development and Disease Group, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Michael J Schmeisser
- Institute for Microscopic Anatomy and Neurobiology, University Medical Center, Johannes Gutenberg University of Mainz, Mainz, Germany
- Focus Program Translational Neurosciences, University Medical Center, Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Friedhelm Hildebrandt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
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Reilly BM, Luger T, Park S, Lio CWJ, González-Avalos E, Wheeler EC, Lee M, Williamson L, Tanaka T, Diep D, Zhang K, Huang Y, Rao A, Bejar R. 5-Azacytidine Transiently Restores Dysregulated Erythroid Differentiation Gene Expression in TET2-Deficient Erythroleukemia Cells. Mol Cancer Res 2021; 19:451-464. [PMID: 33172974 PMCID: PMC7925369 DOI: 10.1158/1541-7786.mcr-20-0453] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/05/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022]
Abstract
DNA methyltransferase inhibitors (DNMTI) like 5-Azacytidine (5-Aza) are the only disease-modifying drugs approved for the treatment of higher-risk myelodysplastic syndromes (MDS), however less than 50% of patients respond, and there are no predictors of response with clinical utility. Somatic mutations in the DNA methylation regulating gene tet-methylcytosine dioxygenase 2 (TET2) are associated with response to DNMTIs, however the mechanisms responsible for this association remain unknown. Using bisulfite padlock probes, mRNA sequencing, and hydroxymethylcytosine pull-down sequencing at several time points throughout 5-Aza treatment, we show that TET2 loss particularly influences DNA methylation (5mC) and hydroxymethylation (5hmC) patterns at erythroid gene enhancers and is associated with downregulation of erythroid gene expression in the human erythroleukemia cell line TF-1. 5-Aza disproportionately induces expression of these down-regulated genes in TET2KO cells and this effect is related to dynamic 5mC changes at erythroid gene enhancers after 5-Aza exposure. We identified differences in remethylation kinetics after 5-Aza exposure for several types of genomic regulatory elements, with distal enhancers exhibiting longer-lasting 5mC changes than other regions. This work highlights the role of 5mC and 5hmC dynamics at distal enhancers in regulating the expression of differentiation-associated gene signatures, and sheds light on how 5-Aza may be more effective in patients harboring TET2 mutations. IMPLICATIONS: TET2 loss in erythroleukemia cells induces hypermethylation and impaired expression of erythroid differentiation genes which can be specifically counteracted by 5-Azacytidine, providing a potential mechanism for the increased efficacy of 5-Aza in TET2-mutant patients with MDS. VISUAL OVERVIEW: http://mcr.aacrjournals.org/content/molcanres/19/3/451/F1.large.jpg.
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Affiliation(s)
- Brian M Reilly
- Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, California
- Moores Cancer Center, University of California San Diego, La Jolla, California
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California
| | - Timothy Luger
- Moores Cancer Center, University of California San Diego, La Jolla, California
| | - Soo Park
- Moores Cancer Center, University of California San Diego, La Jolla, California
| | - Chan-Wang Jerry Lio
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, La Jolla, California
| | - Edahí González-Avalos
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, La Jolla, California
| | - Emily C Wheeler
- Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, California
| | - Minjung Lee
- Center for Epigenetics and Disease Prevention, Texas A&M University Health Science Center, Houston, Texas
| | - Laura Williamson
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California
| | - Tiffany Tanaka
- Moores Cancer Center, University of California San Diego, La Jolla, California
| | - Dinh Diep
- Department of Bioengineering, University of California San Diego, La Jolla, California
| | - Kun Zhang
- Department of Bioengineering, University of California San Diego, La Jolla, California
| | - Yun Huang
- Center for Epigenetics and Disease Prevention, Texas A&M University Health Science Center, Houston, Texas
| | - Anjana Rao
- Moores Cancer Center, University of California San Diego, La Jolla, California
- Division of Signaling and Gene Expression, La Jolla Institute for Immunology, La Jolla, California
| | - Rafael Bejar
- Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, California.
- Moores Cancer Center, University of California San Diego, La Jolla, California
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28
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Apelt K, White SM, Kim HS, Yeo JE, Kragten A, Wondergem AP, Rooimans MA, González-Prieto R, Wiegant WW, Lunke S, Flanagan D, Pantaleo S, Quinlan C, Hardikar W, van Attikum H, Vertegaal AC, Wilson BT, Wolthuis RM, Schärer OD, Luijsterburg MS. ERCC1 mutations impede DNA damage repair and cause liver and kidney dysfunction in patients. J Exp Med 2021; 218:e20200622. [PMID: 33315086 PMCID: PMC7927433 DOI: 10.1084/jem.20200622] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 09/25/2020] [Accepted: 10/15/2020] [Indexed: 12/12/2022] Open
Abstract
ERCC1-XPF is a multifunctional endonuclease involved in nucleotide excision repair (NER), interstrand cross-link (ICL) repair, and DNA double-strand break (DSB) repair. Only two patients with bi-allelic ERCC1 mutations have been reported, both of whom had features of Cockayne syndrome and died in infancy. Here, we describe two siblings with bi-allelic ERCC1 mutations in their teenage years. Genomic sequencing identified a deletion and a missense variant (R156W) within ERCC1 that disrupts a salt bridge below the XPA-binding pocket. Patient-derived fibroblasts and knock-in epithelial cells carrying the R156W substitution show dramatically reduced protein levels of ERCC1 and XPF. Moreover, mutant ERCC1 weakly interacts with NER and ICL repair proteins, resulting in diminished recruitment to DNA damage. Consequently, patient cells show strongly reduced NER activity and increased chromosome breakage induced by DNA cross-linkers, while DSB repair was relatively normal. We report a new case of ERCC1 deficiency that severely affects NER and considerably impacts ICL repair, which together result in a unique phenotype combining short stature, photosensitivity, and progressive liver and kidney dysfunction.
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Affiliation(s)
- Katja Apelt
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Susan M. White
- Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Hyun Suk Kim
- Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea
| | - Jung-Eun Yeo
- Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea
| | - Angela Kragten
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | | | - Martin A. Rooimans
- Section of Oncogenetics, Department of Clinical Genetics, Vrije Universiteit Medical Center and Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Román González-Prieto
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Wouter W. Wiegant
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Sebastian Lunke
- Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Parkville, Australia
- Department of Pathology, University of Melbourne, Parkville, Australia
| | - Daniel Flanagan
- Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Parkville, Australia
| | - Sarah Pantaleo
- Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Parkville, Australia
| | - Catherine Quinlan
- Department of Paediatrics, University of Melbourne, Parkville, Australia
- Department of Nephrology, Royal Children’s Hospital, Melbourne, Australia
- Department of Kidney Regeneration, Murdoch Children’s Research Institute, Melbourne, Australia
| | - Winita Hardikar
- Department of Paediatrics, University of Melbourne, Parkville, Australia
- Department of Gastroenterology, Royal Children's Hospital, Melbourne, Victoria, Australia
- Murdoch Children’s Research Institute, Parkville, Australia
| | - Haico van Attikum
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Alfred C.O. Vertegaal
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Brian T. Wilson
- Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, UK
- Northern Genetics Service, Newcastle upon Tyne Hospitals National Health Service Foundation Trust, International Centre for Life, Newcastle upon Tyne, UK
- Department of Clinical Genetics, Great Ormond Street Hospital, London, UK
| | - Rob M.F. Wolthuis
- Section of Oncogenetics, Department of Clinical Genetics, Vrije Universiteit Medical Center and Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Orlando D. Schärer
- Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
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29
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Hurley S, Mohan C, Suetterlin P, Ellingford R, Riegman KLH, Ellegood J, Caruso A, Michetti C, Brock O, Evans R, Rudari F, Delogu A, Scattoni ML, Lerch JP, Fernandes C, Basson MA. Distinct, dosage-sensitive requirements for the autism-associated factor CHD8 during cortical development. Mol Autism 2021; 12:16. [PMID: 33627187 PMCID: PMC7905672 DOI: 10.1186/s13229-020-00409-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 12/21/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND CHD8 haploinsufficiency causes autism and macrocephaly with high penetrance in the human population. Chd8 heterozygous mice exhibit relatively subtle brain overgrowth and little gene expression changes in the embryonic neocortex. The purpose of this study was to generate new, sub-haploinsufficient Chd8 mouse models to allow us to identify and study the functions of CHD8 during embryonic cortical development. METHODS To examine the possibility that certain phenotypes may only appear at sub-heterozygous Chd8 levels in the mouse, we created an allelic series of Chd8-deficient mice to reduce CHD8 protein levels to approximately 35% (mild hypomorph), 10% (severe hypomorph) and 0% (neural-specific conditional knockout) of wildtype levels. We used RNA sequencing to compare transcriptional dysregulation, structural MRI and brain weight to investigate effects on brain size, and cell proliferation, differentiation and apoptosis markers in immunostaining assays to quantify changes in neural progenitor fate. RESULTS Mild Chd8 hypomorphs displayed significant postnatal lethality, with surviving animals exhibiting more pronounced brain hyperplasia than heterozygotes. Over 2000 genes were dysregulated in mild hypomorphs, including autism-associated neurodevelopmental and cell cycle genes. We identify increased proliferation of non-ventricular zone TBR2+ intermediate progenitors as one potential cause of brain hyperplasia in these mutants. Severe Chd8 hypomorphs displayed even greater transcriptional dysregulation, including evidence for p53 pathway upregulation. In contrast to mild hypomorphs, these mice displayed reduced brain size and increased apoptosis in the embryonic neocortex. Homozygous, conditional deletion of Chd8 in early neuronal progenitors resulted in pronounced brain hypoplasia, partly caused by p53 target gene derepression and apoptosis in the embryonic neocortex. Limitations Our findings identify an important role for the autism-associated factor CHD8 in controlling the proliferation of intermediate progenitors in the mouse neocortex. We propose that CHD8 has a similar function in human brain development, but studies on human cells are required to confirm this. Because many of our mouse mutants with reduced CHD8 function die shortly after birth, it is not possible to fully determine to what extent reduced CHD8 function results in autism-associated behaviours in mice. CONCLUSIONS Together, these findings identify important, dosage-sensitive functions for CHD8 in p53 pathway repression, neurodevelopmental gene expression and neural progenitor fate in the embryonic neocortex. We conclude that brain development is acutely sensitive to reduced CHD8 expression and that the varying sensitivities of different progenitor populations and cellular processes to CHD8 dosage result in non-linear effects on gene transcription and brain growth. Shaun Hurley, Conor Mohan and Philipp Suetterlin have contributed equally to this work.
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Affiliation(s)
- Shaun Hurley
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - Conor Mohan
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - Philipp Suetterlin
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - Robert Ellingford
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | | | - Jacob Ellegood
- Department of Medical Biophysics, Mouse Imaging Centre, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Angela Caruso
- Department of Cell Biology and Neuroscience, Neurotoxicology and Neuroendocrinology Section, Istituto Superiore Di Sanità, Rome, Italy
- Department of Psychology, School of Behavioural Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Caterina Michetti
- Department of Cell Biology and Neuroscience, Neurotoxicology and Neuroendocrinology Section, Istituto Superiore Di Sanità, Rome, Italy
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano Di Tecnologia, Genova, Italy
| | - Olivier Brock
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Romy Evans
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - Fabrizio Rudari
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - Alessio Delogu
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Maria Luisa Scattoni
- Department of Cell Biology and Neuroscience, Neurotoxicology and Neuroendocrinology Section, Istituto Superiore Di Sanità, Rome, Italy
| | - Jason P Lerch
- Department of Medical Biophysics, Mouse Imaging Centre, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Cathy Fernandes
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - M Albert Basson
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK.
- MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK.
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30
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Yamaguchi N, Xiao J, Narke D, Shaheen D, Lin X, Offerman E, Khodadadi-Jamayran A, Shekhar A, Choy A, Wass SY, Van Wagoner DR, Chung MK, Park DS. Cardiac Pressure Overload Decreases ETV1 Expression in the Left Atrium, Contributing to Atrial Electrical and Structural Remodeling. Circulation 2021; 143:805-820. [PMID: 33225722 PMCID: PMC8449308 DOI: 10.1161/circulationaha.120.048121] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Elevated intracardiac pressure attributable to heart failure induces electrical and structural remodeling in the left atrium (LA) that begets atrial myopathy and arrhythmias. The underlying molecular pathways that drive atrial remodeling during cardiac pressure overload are poorly defined. The purpose of this study is to characterize the response of the ETV1 (ETS translocation variant 1) signaling axis in the LA during cardiac pressure overload in humans and mouse models and explore the role of ETV1 in atrial electrical and structural remodeling. METHODS We performed gene expression profiling in 265 left atrial samples from patients who underwent cardiac surgery. Comparative gene expression profiling was performed between 2 murine models of cardiac pressure overload, transverse aortic constriction banding and angiotensin II infusion, and a genetic model of Etv1 cardiomyocyte-selective knockout (Etv1f/fMlc2aCre/+). RESULTS Using the Cleveland Clinic biobank of human LA specimens, we found that ETV1 expression is decreased in patients with reduced ejection fraction. Consistent with its role as an important mediator of the NRG1 (Neuregulin 1) signaling pathway and activator of rapid conduction gene programming, we identified a direct correlation between ETV1 expression level and NRG1, ERBB4, SCN5A, and GJA5 levels in human LA samples. In a similar fashion to patients with heart failure, we showed that left atrial ETV1 expression is downregulated at the RNA and protein levels in murine pressure overload models. Comparative analysis of LA RNA sequencing datasets from transverse aortic constriction and angiotensin II-treated mice showed a high Pearson correlation, reflecting a highly ordered process by which the LA undergoes electrical and structural remodeling. Cardiac pressure overload produced a consistent downregulation of ErbB4, Etv1, Scn5a, and Gja5 and upregulation of profibrotic gene programming, which includes Tgfbr1/2, Igf1, and numerous collagen genes. Etv1f/fMlc2aCre/+ mice displayed atrial conduction disease and arrhythmias. Correspondingly, the LA from Etv1f/fMlc2aCre/+ mice showed downregulation of rapid conduction genes and upregulation of profibrotic gene programming, whereas analysis of a gain-of-function ETV1 RNA sequencing dataset from neonatal rat ventricular myocytes transduced with Etv1 showed reciprocal changes. CONCLUSIONS ETV1 is downregulated in the LA during cardiac pressure overload, contributing to both electrical and structural remodeling.
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Affiliation(s)
- Naoko Yamaguchi
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Junhua Xiao
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Deven Narke
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Devin Shaheen
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Xianming Lin
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Erik Offerman
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
| | - Alireza Khodadadi-Jamayran
- NYU Applied Bioinformatics Labs, New York University Grossman School of Medicine, 227 E 30 Street, TRB-745, New York, New York 10016, USA
| | - Akshay Shekhar
- Regeneron Pharmaceuticals, Inc. Biotechnology, 777 Old Saw Mill River Road, Tarrytown, NY, 10591 USA
| | - Alex Choy
- Icahn Medical Institute at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, USA
| | - Sojin Y. Wass
- Department of Cardiovascular & Metabolic Sciences; Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - David R. Van Wagoner
- Department of Cardiovascular & Metabolic Sciences; Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - Mina K. Chung
- Department of Cardiovascular & Metabolic Sciences; Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - David S. Park
- The Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine, 435 E 30 Street, Science Building 723, New York, New York 10016, USA
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31
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Lister-Shimauchi EH, Dinh M, Maddox P, Ahmed S. Gametes deficient for Pot1 telomere binding proteins alter levels of telomeric foci for multiple generations. Commun Biol 2021; 4:158. [PMID: 33542458 PMCID: PMC7862594 DOI: 10.1038/s42003-020-01624-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 12/15/2020] [Indexed: 11/20/2022] Open
Abstract
Deficiency for telomerase results in transgenerational shortening of telomeres. However, telomeres have no known role in transgenerational epigenetic inheritance. C. elegans Protection Of Telomeres 1 (Pot1) proteins form foci at the telomeres of germ cells that disappear at fertilization and gradually accumulate during development. We find that gametes from mutants deficient for Pot1 proteins alter levels of telomeric foci for multiple generations. Gametes from pot-2 mutants give rise to progeny with abundant POT-1::mCherry and mNeonGreen::POT-2 foci throughout development, which persists for six generations. In contrast, gametes from pot-1 mutants or pot-1; pot-2 double mutants induce diminished Pot1 foci for several generations. Deficiency for MET-2, SET-25, or SET-32 methyltransferases, which promote heterochromatin formation, results in gametes that induce diminished Pot1 foci for several generations. We propose that C. elegans POT-1 may interact with H3K9 methyltransferases during pot-2 mutant gametogenesis to induce a persistent form of transgenerational epigenetic inheritance that causes constitutively high levels of heterochromatic Pot1 foci.
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Affiliation(s)
- Evan H Lister-Shimauchi
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - Michael Dinh
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Paul Maddox
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, 27599, USA
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Shawn Ahmed
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC, 27599, USA.
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32
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Yamada L, Saito M, Thar Min AK, Saito K, Ashizawa M, Kase K, Nakajima S, Onozawa H, Okayama H, Endo H, Fujita S, Sakamoto W, Saze Z, Momma T, Mimura K, Ohki S, Kono K. Selective sensitivity of EZH2 inhibitors based on synthetic lethality in ARID1A-deficient gastric cancer. Gastric Cancer 2021; 24:60-71. [PMID: 32506298 DOI: 10.1007/s10120-020-01094-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AT-rich interactive domain 1A (ARID1A) is a tumor suppressor gene that is frequently mutated in gastric cancer (GC). Although ARID1A mutations are not a druggable target for conventional treatments, novel therapeutic strategies based on a synthetic lethal approach are effective for ARID1A-deficient cancers. The histone methyltransferase EZH2 acts in a synthetic lethal manner in ARID1A-mutated ovarian cancer, although its role in GC remains unknown. METHODS The selective sensitivity of the EZH2 inhibitors for ARID1A-deficient GC cells was evaluated using cell viability and colony formation assays. The expression of PI3K/AKT signaling genes were investigated using TCGA's cBioPortal database to determine whether the homeostasis between ARID1A and EZH2 is related to cell proliferation and survival via the PI3K/AKT signaling pathway. We also evaluated the phosphorylation of PI3K/AKT signaling proteins in ARID1A knock downed ARID1A-WT GC cells. RESULTS EZH2 inhibitors decreased the viability of ARID1A-deficient cells in a dose-dependent manner and demonstrated the selective sensitivity to ARID1A-deficient cells in vitro experiment system. Bioinformatics approach revealed that the PI3K/AKT signaling was tended to be activated in ARID1A-deficient GC enhancing cell viability and, furthermore, down-regulation of EZH2 in ARID1A-deficient GC was related to normalization of PI3K/AKT signaling pathway. The cell experiment revealed that phosphorylated AKT was upregulated in ARID1A-deficent GC cells. CONCLUSIONS The present findings provide a rationale for the selective sensitivity of EZH2 inhibitors against ARID1A-deficient GC and suggest the potential efficacy of targeted therapy using EZH2 inhibitors in this patient population.
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Affiliation(s)
- Leo Yamada
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Motonobu Saito
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan.
| | - Aung Kyi Thar Min
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Katsuharu Saito
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Mai Ashizawa
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Koji Kase
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Shotaro Nakajima
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
- Department of Medical Electrophysiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hisashi Onozawa
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Hirokazu Okayama
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Hisahito Endo
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Shotaro Fujita
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Wataru Sakamoto
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Zenichiro Saze
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Tomoyuki Momma
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Kosaku Mimura
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shinji Ohki
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
| | - Koji Kono
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
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33
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Guo R, Xu Y, Leu NA, Zhang L, Fuchs SY, Ye L, Wang P. The ssDNA-binding protein MEIOB acts as a dosage-sensitive regulator of meiotic recombination. Nucleic Acids Res 2020; 48:12219-12233. [PMID: 33166385 PMCID: PMC7708077 DOI: 10.1093/nar/gkaa1016] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 10/12/2020] [Accepted: 10/19/2020] [Indexed: 12/19/2022] Open
Abstract
Meiotic recombination enables reciprocal exchange of genetic information between parental chromosomes and is essential for fertility. MEIOB, a meiosis-specific ssDNA-binding protein, regulates early meiotic recombination. Here we report that the human infertility-associated missense mutation (N64I) in MEIOB causes protein degradation and reduced crossover formation in mouse testes. Although the MEIOB N64I substitution is associated with human infertility, the point mutant mice are fertile despite meiotic defects. Meiob mutagenesis identifies serine 67 as a critical residue for MEIOB. Biochemically, these two mutations (N64I and S67 deletion) cause self-aggregation of MEIOB and sharply reduced protein half-life. Molecular genetic analyses of both point mutants reveal an important role for MEIOB in crossover formation in late meiotic recombination. Furthermore, we find that the MEIOB protein levels directly correlate with the severity of meiotic defects. Our results demonstrate that MEIOB regulates meiotic recombination in a dosage-dependent manner.
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Affiliation(s)
- Rui Guo
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Yang Xu
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - N Adrian Leu
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - Lei Zhang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - Serge Y Fuchs
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - Lan Ye
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - P Jeremy Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
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34
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Lavrijssen B, Baars JP, Lugones LG, Scholtmeijer K, Sedaghat Telgerd N, Sonnenberg ASM, van Peer AF. Interruption of an MSH4 homolog blocks meiosis in metaphase I and eliminates spore formation in Pleurotus ostreatus. PLoS One 2020; 15:e0241749. [PMID: 33147286 PMCID: PMC7641404 DOI: 10.1371/journal.pone.0241749] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/21/2020] [Indexed: 11/18/2022] Open
Abstract
Pleurotus ostreatus, one of the most widely cultivated edible mushrooms, produces high numbers of spores causing severe respiratory health problems for people, clogging of filters and spoilage of produce. A non-sporulating commercial variety (SPOPPO) has been successfully introduced into the market in 2006. This variety was generated by introgression breeding of a natural mutation into a commercial variety. Our cytological studies revealed that meiosis in the natural and derived sporeless strains was blocked in metaphase I, apparently resulting in a loss of spore formation. The gene(s) underlying this phenotype were mapped to an 80 kb region strongly linked to sporelessness and identified by transformation of wild type genes of this region into a sporeless strain. Sporulation was restored by re-introduction of the DNA sequence encoding the P. ostreatus meiotic recombination gene MSH4 homolog (poMSH4). Subsequent molecular analysis showed that poMSH4 in the sporeless P. ostreatus was interrupted by a DNA fragment containing a region encoding a CxC5/CxC6 cysteine cluster associated with Copia-type retrotransposons. The block of meiosis in metaphase I by a poMSH4 null mutant suggests that this protein plays an essential role in both Class I and II crossovers in mushrooms, similar to animals (mice), but unlike in plants. MSH4 was previously shown to be a target for breeding of sporeless varieties in P. pulmonarius, and the null mutant of the MSH4 homolog of S. commune (scMSH4) confers an extremely low level of spore formation. We propose that MSH4 homologs are likely to be a breeding target for sporeless strains both within Pleurotus sp. and in other Agaricales.
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Affiliation(s)
- Brian Lavrijssen
- Plant Breeding Department, Wageningen University and Research, Wageningen, The Netherlands
| | - Johan P. Baars
- Plant Breeding Department, Wageningen University and Research, Wageningen, The Netherlands
| | - Luis G. Lugones
- Microbiology Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Karin Scholtmeijer
- Plant Breeding Department, Wageningen University and Research, Wageningen, The Netherlands
- * E-mail:
| | | | - Anton S. M. Sonnenberg
- Plant Breeding Department, Wageningen University and Research, Wageningen, The Netherlands
| | - Arend F. van Peer
- Plant Breeding Department, Wageningen University and Research, Wageningen, The Netherlands
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35
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Suspitsin EN, Guseva MN, Kostik MM, Sokolenko AP, Skripchenko NV, Levina AS, Goleva OV, Dubko MF, Tumakova AV, Makhova MA, Lyazina LV, Bizin IV, Sokolova NE, Gabrusskaya TV, Ditkovskaya LV, Kozlova OP, Vahliarskaya SS, Kondratenko IV, Imyanitov EN. Next generation sequencing analysis of consecutive Russian patients with clinical suspicion of inborn errors of immunity. Clin Genet 2020; 98:231-239. [PMID: 32441320 DOI: 10.1111/cge.13789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022]
Abstract
Primary immune deficiencies are usually attributed to genetic defects and, therefore, frequently referred to as inborn errors of immunity (IEI). We subjected the genomic DNA of 333 patients with clinical signs of IEI to next generation sequencing (NGS) analysis of 344 immunity-related genes and, in some instances, additional genetic techniques. Genetic causes of the disease were identified in 69/333 (21%) of subjects, including 11/18 (61%) of children with syndrome-associated IEIs, 45/202 (22%) of nonsyndromic patients with Jeffrey Modell Foundation (JMF) warning signs, 9/56 (16%) of subjects with periodic fever, 3/30 (10%) of cases of autoimmune cytopenia, 1/21 (5%) of patients with unusually severe infections and 0/6 (0%) of individuals with isolated elevation of IgE level. There were unusual clinical observations: twins with severe immunodeficiency carried a de novo CHARGE syndrome-associated SEMA3E c.2108C>T (p.S703L) allele; however, they lacked clinical features of CHARGE syndrome. Additionally, there were genetically proven instances of Netherton syndrome, Х-linked agammaglobulinemia, severe combined immune deficiency (SCID), IPEX and APECED syndromes, among others. Some patients carried recurrent pathogenic alleles, such as AIRE c.769C>T (p.R257*), NBN c.657del5, DCLRE1C c.103C>G (p.H35D), NLRP12 c.1054C>T (p.R352C) and c.910C>T (p.H304Y). NGS is a powerful tool for high-throughput examination of patients with malfunction of immunity.
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Affiliation(s)
- Evgeny N Suspitsin
- Department of Medical Genetics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russia
| | - Marina N Guseva
- Outpatient Department, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
- Department of Immunology, First Pavlov State Medical University, St. Petersburg, Russia
| | - Mikhail M Kostik
- Department of Hospital Pediatrics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Anna P Sokolenko
- Department of Medical Genetics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russia
| | - Nataliya V Skripchenko
- Department of Infectious Diseases in Children, Faculty of Postgraduate Education, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
- Department of Neuroinfections and Nervous System Pathology, Pediatric Research and Clinical Center for Infectious Diseases, St. Petersburg, Russia
| | - Anastasia S Levina
- Department of Infectious Diseases in Children, Faculty of Postgraduate Education, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Olga V Goleva
- Department of Virusology and Molecular Biology, Pediatric Research and Clinical Center for Infectious Diseases, St. Petersburg, Russia
| | - Margarita F Dubko
- Department of Hospital Pediatrics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Anastasia V Tumakova
- Department of Medical Genetics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Maria A Makhova
- Department of Medical Genetics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | | | - Ilya V Bizin
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russia
| | - Natalia E Sokolova
- Department of Hematology, First City Children Hospital, St. Petersburg, Russia
| | - Tatiana V Gabrusskaya
- Department of Gastroenterology, Faculty of Postgraduate Education, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Liliya V Ditkovskaya
- I.M. Vorontsov Department of Pediatrics, Faculty of Postgraduate Education, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
| | - Olga P Kozlova
- Department of Clinical Mycology, Allergology and Immunology, I.I. Mechnikov North-Western Medical University, St. Petersburg, Russia
| | - Svetlana S Vahliarskaya
- Department of Clinical Immunology, Russian Children Clinical Hospital, N.N. Pirogov National Research Medical University, Moscow, Russia
| | - Irina V Kondratenko
- Department of Clinical Immunology, Russian Children Clinical Hospital, N.N. Pirogov National Research Medical University, Moscow, Russia
| | - Evgeny N Imyanitov
- Department of Medical Genetics, St. Petersburg State Pediatric Medical University, St. Petersburg, Russia
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russia
- Department of Oncology, I.I. Mechnikov North-Western Medical University, St. Petersburg, Russia
- Department of Oncology, Saint Petersburg State University, St. Petersburg, Russia
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36
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Stremenova Spegarova J, Lawless D, Mohamad SMB, Engelhardt KR, Doody G, Shrimpton J, Rensing-Ehl A, Ehl S, Rieux-Laucat F, Cargo C, Griffin H, Mikulasova A, Acres M, Morgan NV, Poulter JA, Sheridan EG, Chetcuti P, O'Riordan S, Anwar R, Carter CR, Przyborski S, Windebank K, Cant AJ, Lako M, Bacon CM, Savic S, Hambleton S. Germline TET2 loss of function causes childhood immunodeficiency and lymphoma. Blood 2020; 136:1055-1066. [PMID: 32518946 DOI: 10.1182/blood.2020005844] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022] Open
Abstract
Molecular dissection of inborn errors of immunity can help to elucidate the nonredundant functions of individual genes. We studied 3 children with an immune dysregulation syndrome of susceptibility to infection, lymphadenopathy, hepatosplenomegaly, developmental delay, autoimmunity, and lymphoma of B-cell (n = 2) or T-cell (n = 1) origin. All 3 showed early autologous T-cell reconstitution following allogeneic hematopoietic stem cell transplantation. By whole-exome sequencing, we identified rare homozygous germline missense or nonsense variants in a known epigenetic regulator of gene expression: ten-eleven translocation methylcytosine dioxygenase 2 (TET2). Mutated TET2 protein was absent or enzymatically defective for 5-hydroxymethylating activity, resulting in whole-blood DNA hypermethylation. Circulating T cells showed an abnormal immunophenotype including expanded double-negative, but depleted follicular helper, T-cell compartments and impaired Fas-dependent apoptosis in 2 of 3 patients. Moreover, TET2-deficient B cells showed defective class-switch recombination. The hematopoietic potential of patient-derived induced pluripotent stem cells was skewed toward the myeloid lineage. These are the first reported cases of autosomal-recessive germline TET2 deficiency in humans, causing clinically significant immunodeficiency and an autoimmune lymphoproliferative syndrome with marked predisposition to lymphoma. This disease phenotype demonstrates the broad role of TET2 within the human immune system.
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MESH Headings
- Allografts
- Apoptosis
- B-Lymphocyte Subsets/pathology
- Cellular Reprogramming Techniques
- Codon, Nonsense
- DNA Methylation
- DNA-Binding Proteins/deficiency
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/physiology
- Dioxygenases
- Fatal Outcome
- Female
- Germ-Line Mutation
- Hematopoietic Stem Cell Transplantation
- Humans
- Induced Pluripotent Stem Cells/pathology
- Infant, Newborn
- Loss of Function Mutation
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, T-Cell, Peripheral/genetics
- Lymphoma, T-Cell, Peripheral/pathology
- Lymphoproliferative Disorders/genetics
- Male
- Mutation, Missense
- Neoplasms, Multiple Primary/genetics
- Pedigree
- Proto-Oncogene Proteins/deficiency
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/physiology
- Severe Combined Immunodeficiency/genetics
- Severe Combined Immunodeficiency/pathology
- T-Lymphocyte Subsets/pathology
- Exome Sequencing
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Affiliation(s)
- Jarmila Stremenova Spegarova
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
| | - Dylan Lawless
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Siti Mardhiana Binti Mohamad
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Penang, Malaysia
| | - Karin R Engelhardt
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
| | - Gina Doody
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Jennifer Shrimpton
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Anne Rensing-Ehl
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Freiburg, Germany
| | - Stephan Ehl
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Freiburg, Germany
| | | | - Catherine Cargo
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, United Kingdom
| | - Helen Griffin
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
| | - Aneta Mikulasova
- Newcastle University Biosciences Institute, Newcastle upon Tyne, United Kingdom
| | - Meghan Acres
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
| | - Neil V Morgan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - James A Poulter
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Eamonn G Sheridan
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Philip Chetcuti
- Department of Paediatrics, Leeds General Infirmary, Leeds, United Kingdom
| | - Sean O'Riordan
- Department of Paediatrics, Leeds General Infirmary, Leeds, United Kingdom
| | - Rashida Anwar
- Leeds Institute of Medical Research, St. James's University Hospital, University of Leeds, Leeds, United Kingdom
| | - Clive R Carter
- Department of Clinical Immunology and Allergy, St James's University Hospital, Leeds, United Kingdom
| | - Stefan Przyborski
- Department of Biosciences, Durham University, Durham, United Kingdom
| | - Kevin Windebank
- Wolfson Childhood Cancer Research Centre, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
| | - Andrew J Cant
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Majlinda Lako
- Newcastle University Biosciences Institute, Newcastle upon Tyne, United Kingdom
| | - Chris M Bacon
- Wolfson Childhood Cancer Research Centre, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
- Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom; and
| | - Sinisa Savic
- Department of Clinical Immunology and Allergy, St James's University Hospital, Leeds, United Kingdom
- NIHR, Leeds Biomedical Research Centre and Leeds Institute of Rheumatic and Musculoskeletal Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, United Kingdom
| | - Sophie Hambleton
- Primary Immunodeficiency Group, Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
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37
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Fagnan A, Bagger FO, Piqué-Borràs MR, Ignacimouttou C, Caulier A, Lopez CK, Robert E, Uzan B, Gelsi-Boyer V, Aid Z, Thirant C, Moll U, Tauchmann S, Kurtovic-Kozaric A, Maciejewski J, Dierks C, Spinelli O, Salmoiraghi S, Pabst T, Shimoda K, Deleuze V, Lapillonne H, Sweeney C, De Mas V, Leite B, Kadri Z, Malinge S, de Botton S, Micol JB, Kile B, Carmichael CL, Iacobucci I, Mullighan CG, Carroll M, Valent P, Bernard OA, Delabesse E, Vyas P, Birnbaum D, Anguita E, Garçon L, Soler E, Schwaller J, Mercher T. Human erythroleukemia genetics and transcriptomes identify master transcription factors as functional disease drivers. Blood 2020; 136:698-714. [PMID: 32350520 PMCID: PMC8215330 DOI: 10.1182/blood.2019003062] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 03/25/2020] [Indexed: 12/11/2022] Open
Abstract
Acute erythroleukemia (AEL or acute myeloid leukemia [AML]-M6) is a rare but aggressive hematologic malignancy. Previous studies showed that AEL leukemic cells often carry complex karyotypes and mutations in known AML-associated oncogenes. To better define the underlying molecular mechanisms driving the erythroid phenotype, we studied a series of 33 AEL samples representing 3 genetic AEL subgroups including TP53-mutated, epigenetic regulator-mutated (eg, DNMT3A, TET2, or IDH2), and undefined cases with low mutational burden. We established an erythroid vs myeloid transcriptome-based space in which, independently of the molecular subgroup, the majority of the AEL samples exhibited a unique mapping different from both non-M6 AML and myelodysplastic syndrome samples. Notably, >25% of AEL patients, including in the genetically undefined subgroup, showed aberrant expression of key transcriptional regulators, including SKI, ERG, and ETO2. Ectopic expression of these factors in murine erythroid progenitors blocked in vitro erythroid differentiation and led to immortalization associated with decreased chromatin accessibility at GATA1-binding sites and functional interference with GATA1 activity. In vivo models showed development of lethal erythroid, mixed erythroid/myeloid, or other malignancies depending on the cell population in which AEL-associated alterations were expressed. Collectively, our data indicate that AEL is a molecularly heterogeneous disease with an erythroid identity that results in part from the aberrant activity of key erythroid transcription factors in hematopoietic stem or progenitor cells.
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Affiliation(s)
- Alexandre Fagnan
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Frederik Otzen Bagger
- University Children's Hospital Beider Basel (UKBB), Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Center for Genomic Medicine, Copenhagen University Hospital, Copenhagen, Denmark
- Swiss Institute of Bioinformatics, Basel, Basel, Switzerland
| | - Maria-Riera Piqué-Borràs
- University Children's Hospital Beider Basel (UKBB), Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Cathy Ignacimouttou
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Alexis Caulier
- Equipe d'Accueil (EA) 4666, Hématopoïèse et Immunologie (HEMATIM), Université de Picardie Jules Verne (UPJV), Amiens, France
- Service Hématologie Biologique, Centre Hospitalier Universitaire (CHU) Amiens, Amiens, France
| | - Cécile K Lopez
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Elie Robert
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Benjamin Uzan
- Unité Mixte de Recherche 967 (UMR 967), INSERM-Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA)/Direction de la Recherche Fondamentale (DRF)/Institut de Biologie François Jacob (IBFJ)/Institut de Radiobiologie Cellulaire et Moléculaire (IRCM)/Laboratoire des cellules Souches Hématopoïétiques et des Leucémies (LSHL)-Université Paris-Diderot-Université Paris-Sud, Fontenay-aux-Roses, France
| | - Véronique Gelsi-Boyer
- U1068 and
- UMR7258, Centre de Recherche en Cancérologie de Marseille, Centre National de la Recherche Scientifique (CNRS)/INSERM/Institut Paoli Calmettes/Aix-Marseille Université, Marseille, France
| | - Zakia Aid
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Cécile Thirant
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Ute Moll
- Institute of Molecular Oncology, University Medical Center Göttingen, Göttingen, Germany
- Department of Pathology, Stony Brook University, Stony Brook, NY
| | - Samantha Tauchmann
- University Children's Hospital Beider Basel (UKBB), Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Amina Kurtovic-Kozaric
- Clinical Center of the University of Sarajevo, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Jaroslaw Maciejewski
- Department of Translational Hematology and Oncologic Research, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
| | - Christine Dierks
- Hämatologie, Onkologie und Stammzelltransplantation, Klinik für Innere Medizin I, Freiburg, Germany
| | - Orietta Spinelli
- UOC Ematologia, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Silvia Salmoiraghi
- UOC Ematologia, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII Hospital, Bergamo, Italy
- FROM Research Foundation, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Thomas Pabst
- Department of Oncology, Inselspital, University Hospital Bern/University of Bern, Bern, Switzerland
| | - Kazuya Shimoda
- Gastroenterology and Hematology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Virginie Deleuze
- IGMM, University of Montpellier, CNRS, Montpellier, France
- Université de Paris, Laboratory of Excellence GR-Ex, Paris, France
| | - Hélène Lapillonne
- Centre de Recherche Saint Antoine (CRSA)-Unité INSERM, Sorbonne Université/Assistance Publique-Hôpitaux de Paris (AP-HP)/Hôpital Trousseau, Paris, France
| | - Connor Sweeney
- Medical Research Council Molecular Haematology Unit (MRC MHU), Biomedical Research Centre (BRC) Hematology Theme, Oxford Biomedical Research Centre, Oxford Centre for Haematology, Weatherall Institute of Molecular Medicine (WIMM), Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Véronique De Mas
- Team 16, Hematology Laboratory, Center of Research of Cancerology of Toulouse, U1037, INSERM/Institut Universitaire du Cancer de Toulouse (IUCT) Oncopole, Toulouse, France
| | - Betty Leite
- Genomic Platform, Unité Mixte de Service - Analyse Moléculaire, Modélisation et Imagerie de la maladie Cancéreuse (UMS AMMICA), Gustave Roussy/Université Paris-Saclay, Villejuif, France
| | - Zahra Kadri
- Division of Innovative Therapies, UMR-1184, Immunologie des Maladies Virales, Auto-immunes, Hématologiques et Bactériennes (IMVA-HB) and Infectious Disease Models and Innovative Therapies (IDMIT) Center, CEA/INSERM/Paris-Saclay University, Fontenay-aux-Roses, France
| | - Sébastien Malinge
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Telethon Kids Institute, Perth Children's Hospital, Nedlands, WA, Australia
| | - Stéphane de Botton
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Jean-Baptiste Micol
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
| | - Benjamin Kile
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | | | - Ilaria Iacobucci
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, TN
| | - Martin Carroll
- Division of Hematology and Oncology, University of Pennsylvania, PA
| | - Peter Valent
- Division of Hematology and Hemostaseology, Department of Internal Medicine I and
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Olivier A Bernard
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Eric Delabesse
- Team 16, Hematology Laboratory, Center of Research of Cancerology of Toulouse, U1037, INSERM/Institut Universitaire du Cancer de Toulouse (IUCT) Oncopole, Toulouse, France
| | - Paresh Vyas
- Medical Research Council Molecular Haematology Unit (MRC MHU), Biomedical Research Centre (BRC) Hematology Theme, Oxford Biomedical Research Centre, Oxford Centre for Haematology, Weatherall Institute of Molecular Medicine (WIMM), Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Daniel Birnbaum
- U1068 and
- UMR7258, Centre de Recherche en Cancérologie de Marseille, Centre National de la Recherche Scientifique (CNRS)/INSERM/Institut Paoli Calmettes/Aix-Marseille Université, Marseille, France
| | - Eduardo Anguita
- Hematology Department
- Instituto de Medicina de Laboratorio (IML), and
- Instituto de Investigación Sanitaria San Carlos, (IdISSC), Hospital Clínico San Carlos (HCSC), Madrid, Spain; and
- Department of Medicine, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Loïc Garçon
- Equipe d'Accueil (EA) 4666, Hématopoïèse et Immunologie (HEMATIM), Université de Picardie Jules Verne (UPJV), Amiens, France
- Service Hématologie Biologique, Centre Hospitalier Universitaire (CHU) Amiens, Amiens, France
| | - Eric Soler
- IGMM, University of Montpellier, CNRS, Montpellier, France
- Université de Paris, Laboratory of Excellence GR-Ex, Paris, France
| | - Juerg Schwaller
- University Children's Hospital Beider Basel (UKBB), Basel, Switzerland
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Thomas Mercher
- Unité 1170 (U1170), INSERM, Gustave Roussy, Université Paris Diderot, Villejuif, France
- Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
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Xiao J, Wang C, Yao JC, Alippe Y, Yang T, Kress D, Sun K, Kostecki KL, Monahan JB, Veis DJ, Abu-Amer Y, Link DC, Mbalaviele G. Radiation causes tissue damage by dysregulating inflammasome-gasdermin D signaling in both host and transplanted cells. PLoS Biol 2020; 18:e3000807. [PMID: 32760056 PMCID: PMC7446913 DOI: 10.1371/journal.pbio.3000807] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/18/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022] Open
Abstract
Radiotherapy is a commonly used conditioning regimen for bone marrow transplantation (BMT). Cytotoxicity limits the use of this life-saving therapy, but the underlying mechanisms remain poorly defined. Here, we use the syngeneic mouse BMT model to test the hypothesis that lethal radiation damages tissues, thereby unleashing signals that indiscriminately activate the inflammasome pathways in host and transplanted cells. We find that a clinically relevant high dose of radiation causes severe damage to bones and the spleen through mechanisms involving the NLRP3 and AIM2 inflammasomes but not the NLRC4 inflammasome. Downstream, we demonstrate that gasdermin D (GSDMD), the common effector of the inflammasomes, is also activated by radiation. Remarkably, protection against the injury induced by deadly ionizing radiation occurs only when NLRP3, AIM2, or GSDMD is lost simultaneously in both the donor and host cell compartments. Thus, this study reveals a continuum of the actions of lethal radiation relayed by the inflammasome-GSDMD axis, initially affecting recipient cells and ultimately harming transplanted cells as they grow in the severely injured and toxic environment. This study also suggests that therapeutic targeting of inflammasome-GSDMD signaling has the potential to prevent the collateral effects of intense radiation regimens.
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Affiliation(s)
- Jianqiu Xiao
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Chun Wang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Juo-Chin Yao
- Division of Oncology, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Yael Alippe
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Tong Yang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Dustin Kress
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Kai Sun
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | | | - Joseph B. Monahan
- Aclaris Therapeutics, Inc., St. Louis, Missouri, United Sates of America
| | - Deborah J. Veis
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Yousef Abu-Amer
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
- Shriners Hospital for Children, St. Louis, Missouri, United Sates of America
| | - Daniel C. Link
- Division of Oncology, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, United Sates of America
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Zhang L, Gao Y, Zhang R, Sun F, Cheng C, Qian F, Duan X, Wei G, Sun C, Pang X, Chen P, Chai R, Yang T, Wu H, Liu D. THOC1 deficiency leads to late-onset nonsyndromic hearing loss through p53-mediated hair cell apoptosis. PLoS Genet 2020; 16:e1008953. [PMID: 32776944 PMCID: PMC7444544 DOI: 10.1371/journal.pgen.1008953] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 08/20/2020] [Accepted: 06/24/2020] [Indexed: 01/04/2023] Open
Abstract
Apoptosis of cochlear hair cells is a key step towards age-related hearing loss. Although numerous genes have been implicated in the genetic causes of late-onset, progressive hearing loss, few show direct links to the proapoptotic process. By genome-wide linkage analysis and whole exome sequencing, we identified a heterozygous p.L183V variant in THOC1 as the probable cause of the late-onset, progressive, non-syndromic hearing loss in a large family with autosomal dominant inheritance. Thoc1, a member of the conserved multisubunit THO/TREX ribonucleoprotein complex, is highly expressed in mouse and zebrafish hair cells. The thoc1 knockout (thoc1 mutant) zebrafish generated by gRNA-Cas9 system lacks the C-startle response, indicative of the hearing dysfunction. Both Thoc1 mutant and knockdown zebrafish have greatly reduced hair cell numbers, while the latter can be rescued by embryonic microinjection of human wild-type THOC1 mRNA but to significantly lesser degree by the c.547C>G mutant mRNA. The Thoc1 deficiency resulted in marked apoptosis in zebrafish hair cells. Consistently, transcriptome sequencing of the mutants showed significantly increased gene expression in the p53-associated signaling pathway. Depletion of p53 or applying the p53 inhibitor Pifithrin-α significantly rescued the hair cell loss in the Thoc1 knockdown zebrafish. Our results suggested that THOC1 deficiency lead to late-onset, progressive hearing loss through p53-mediated hair cell apoptosis. This is to our knowledge the first human disease associated with THOC1 mutations and may shed light on the molecular mechanism underlying the age-related hearing loss.
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Affiliation(s)
- Luping Zhang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yu Gao
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ru Zhang
- Shanghai East Hospital, Department of Otorhinolaryngology Shanghai, Shanghai, China
| | - Feifei Sun
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Cheng Cheng
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Fuping Qian
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Xuchu Duan
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Guanyun Wei
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Cheng Sun
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xiuhong Pang
- Department of Otorhinolaryngology-Head and Neck Surgery, Taizhou People’s Hospital, Fifth Affiliated Hospital, Nantong University, Taizhou, China
| | - Penghui Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Renjie Chai
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Tao Yang
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Hao Wu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Dong Liu
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital, School of Life Science, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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Cochran JN, Geier EG, Bonham LW, Newberry JS, Amaral MD, Thompson ML, Lasseigne BN, Karydas AM, Roberson ED, Cooper GM, Rabinovici GD, Miller BL, Myers RM, Yokoyama JS. Non-coding and Loss-of-Function Coding Variants in TET2 are Associated with Multiple Neurodegenerative Diseases. Am J Hum Genet 2020; 106:632-645. [PMID: 32330418 PMCID: PMC7212268 DOI: 10.1016/j.ajhg.2020.03.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 03/20/2020] [Indexed: 12/13/2022] Open
Abstract
We conducted genome sequencing to search for rare variation contributing to early-onset Alzheimer's disease (EOAD) and frontotemporal dementia (FTD). Discovery analysis was conducted on 435 cases and 671 controls of European ancestry. Burden testing for rare variation associated with disease was conducted using filters based on variant rarity (less than one in 10,000 or private), computational prediction of deleteriousness (CADD) (10 or 15 thresholds), and molecular function (protein loss-of-function [LoF] only, coding alteration only, or coding plus non-coding variants in experimentally predicted regulatory regions). Replication analysis was conducted on 16,434 independent cases and 15,587 independent controls. Rare variants in TET2 were enriched in the discovery combined EOAD and FTD cohort (p = 4.6 × 10-8, genome-wide corrected p = 0.0026). Most of these variants were canonical LoF or non-coding in predicted regulatory regions. This enrichment replicated across several cohorts of Alzheimer's disease (AD) and FTD (replication only p = 0.0029). The combined analysis odds ratio was 2.3 (95% confidence interval [CI] 1.6-3.4) for AD and FTD. The odds ratio for qualifying non-coding variants considered independently from coding variants was 3.7 (95% CI 1.7-9.4). For LoF variants, the combined odds ratio (for AD, FTD, and amyotrophic lateral sclerosis, which shares clinicopathological overlap with FTD) was 3.1 (95% CI 1.9-5.2). TET2 catalyzes DNA demethylation. Given well-defined changes in DNA methylation that occur during aging, rare variation in TET2 may confer risk for neurodegeneration by altering the homeostasis of key aging-related processes. Additionally, our study emphasizes the relevance of non-coding variation in genetic studies of complex disease.
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Affiliation(s)
- J Nicholas Cochran
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Ethan G Geier
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States
| | - Luke W Bonham
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States
| | - J Scott Newberry
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Michelle D Amaral
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Michelle L Thompson
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Brittany N Lasseigne
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States; Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, United States
| | - Anna M Karydas
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States
| | - Erik D Roberson
- Center for Neurodegeneration and Experimental Therapeutics, Alzheimer's Disease Center, Departments of Neurology and Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, United States
| | - Gregory M Cooper
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Gil D Rabinovici
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States; Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA 94158, United States
| | - Bruce L Miller
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States
| | - Richard M Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, United States
| | - Jennifer S Yokoyama
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, United States; Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA 94158, United States.
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41
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Mulderrig L, Garaycoechea JI. XPF-ERCC1 protects liver, kidney and blood homeostasis outside the canonical excision repair pathways. PLoS Genet 2020; 16:e1008555. [PMID: 32271760 PMCID: PMC7144963 DOI: 10.1371/journal.pgen.1008555] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/05/2019] [Indexed: 01/02/2023] Open
Abstract
Loss of the XPF-ERCC1 endonuclease causes a dramatic phenotype that results in progeroid features associated with liver, kidney and bone marrow dysfunction. As this nuclease is involved in multiple DNA repair transactions, it is plausible that this severe phenotype results from the simultaneous inactivation of both branches of nucleotide excision repair (GG- and TC-NER) and Fanconi anaemia (FA) inter-strand crosslink (ICL) repair. Here we use genetics in human cells and mice to investigate the interaction between the canonical NER and ICL repair pathways and, subsequently, how their joint inactivation phenotypically overlaps with XPF-ERCC1 deficiency. We find that cells lacking TC-NER are sensitive to crosslinking agents and that there is a genetic interaction between NER and FA in the repair of certain endogenous crosslinking agents. However, joint inactivation of GG-NER, TC-NER and FA crosslink repair cannot account for the hypersensitivity of XPF-deficient cells to classical crosslinking agents nor is it sufficient to explain the extreme phenotype of Ercc1-/- mice. These analyses indicate that XPF-ERCC1 has important functions outside of its central role in NER and FA crosslink repair which are required to prevent endogenous DNA damage. Failure to resolve such damage leads to loss of tissue homeostasis in mice and humans.
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Affiliation(s)
- Lee Mulderrig
- MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Francis Crick Avenue, Cambridge, United Kingdom
| | - Juan I. Garaycoechea
- Hubrecht Institute–KNAW, University Medical Center Utrecht, Uppsalalaan, CT Utrecht, Netherlands
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Huang K, Sun R, Chen J, Yang Q, Wang Y, Zhang Y, Xie K, Zhang T, Li R, Zhao Q, Zou L, Li J. A novel EZH2 inhibitor induces synthetic lethality and apoptosis in PBRM1-deficient cancer cells. Cell Cycle 2020; 19:758-771. [PMID: 32093567 PMCID: PMC7145336 DOI: 10.1080/15384101.2020.1729450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/09/2019] [Accepted: 12/29/2019] [Indexed: 12/24/2022] Open
Abstract
The inhibition of enhancer of zeste homolog 2 (EZH2) has been suggested to be synthetic lethal with polybromo-1 (PBRM1) deficiency, rendering EZH2 to be an attractive target for the treatment of PBRM1 frequently mutated cancers. In the current study, we combined computational and biochemical approaches to establish an efficient system for the screening and validation of synthetic lethal inhibitors from a large pool of chemical compounds. Five putative EZH2 inhibitors were identified through structure-based virtual screening from 47,737 chemical compounds and analyzed with molecular dynamics. The efficacy of these compounds against EZH2 was tested using PBRM1 deficient and wide-type cell lines. The compound L501-1669 selectively inhibited the proliferation of PBRM1-deficient cells and down-regulated the tri-methylation of histone H3 at Lysine 27 (H3K27me3). Importantly, we also observed an increase in apoptotic activities in L501-1669 treated PBRM1-deficient cells. Taken together, our results demonstrate that L501-1669 is a selective EZH2 inhibitor with promising application in the targeted therapy of PBRM1-deficient cancers.
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Affiliation(s)
- Kejia Huang
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Rong Sun
- Basic Medical Research Center, School of Medicine, Nantong University, Jiangsu, China
| | - Jiarong Chen
- Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China
| | - Qianye Yang
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Yucheng Wang
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, China
| | - Yang Zhang
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Kun Xie
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, China
| | - Tiantian Zhang
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, China
| | - Rui Li
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, China
| | - Qi Zhao
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, China
| | - Liang Zou
- School of Medicine, Chengdu University, Chengdu, China
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu, China
| | - Jian Li
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
- School of Medicine, Chengdu University, Chengdu, China
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Boettcher AN, Li Y, Ahrens AP, Kiupel M, Byrne KA, Loving CL, Cino-Ozuna AG, Wiarda JE, Adur M, Schultz B, Swanson JJ, Snella EM, Ho CS(S, Charley SE, Kiefer ZE, Cunnick JE, Putz EJ, Dell'Anna G, Jens J, Sathe S, Goldman F, Westin ER, Dekkers JCM, Ross JW, Tuggle CK. Novel Engraftment and T Cell Differentiation of Human Hematopoietic Cells in ART-/-IL2RG-/Y SCID Pigs. Front Immunol 2020; 11:100. [PMID: 32117254 PMCID: PMC7017803 DOI: 10.3389/fimmu.2020.00100] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/15/2020] [Indexed: 01/08/2023] Open
Abstract
Pigs with severe combined immunodeficiency (SCID) are an emerging biomedical animal model. Swine are anatomically and physiologically more similar to humans than mice, making them an invaluable tool for preclinical regenerative medicine and cancer research. One essential step in further developing this model is the immunological humanization of SCID pigs. In this work we have generated T- B- NK- SCID pigs through site directed CRISPR/Cas9 mutagenesis of IL2RG within a naturally occurring DCLRE1C (ARTEMIS)-/- genetic background. We confirmed ART-/-IL2RG-/Y pigs lacked T, B, and NK cells in both peripheral blood and lymphoid tissues. Additionally, we successfully performed a bone marrow transplant on one ART-/-IL2RG-/Y male SCID pig with bone marrow from a complete swine leukocyte antigen (SLA) matched donor without conditioning to reconstitute porcine T and NK cells. Next, we performed in utero injections of cultured human CD34+ selected cord blood cells into the fetal ART-/-IL2RG-/Y SCID pigs. At birth, human CD45+ CD3ε+ cells were detected in cord and peripheral blood of in utero injected SCID piglets. Human leukocytes were also detected within the bone marrow, spleen, liver, thymus, and mesenteric lymph nodes of these animals. Taken together, we describe critical steps forwards the development of an immunologically humanized SCID pig model.
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Affiliation(s)
| | - Yunsheng Li
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Amanda P. Ahrens
- Laboratory Animal Resources, Iowa State University, Ames, IA, United States
| | - Matti Kiupel
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, United States
| | - Kristen A. Byrne
- Food Safety and Enteric Pathogen Unit, National Animal Disease Center, US Department of Agriculture, Agricultural Research Service, Ames, IA, United States
| | - Crystal L. Loving
- Food Safety and Enteric Pathogen Unit, National Animal Disease Center, US Department of Agriculture, Agricultural Research Service, Ames, IA, United States
| | - A. Giselle Cino-Ozuna
- Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, KS, United States
| | - Jayne E. Wiarda
- Food Safety and Enteric Pathogen Unit, National Animal Disease Center, US Department of Agriculture, Agricultural Research Service, Ames, IA, United States
- Immunobiology Graduate Program, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
- Oak Ridge Institute for Science and Education, Agricultural Research Service Participation Program, Oak Ridge, TN, United States
| | - Malavika Adur
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Blythe Schultz
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | | | - Elizabeth M. Snella
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Chak-Sum (Sam) Ho
- Gift of Hope Organ and Tissue Donor Network, Itasca, IL, United States
| | - Sara E. Charley
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Zoe E. Kiefer
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Joan E. Cunnick
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Ellie J. Putz
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Giuseppe Dell'Anna
- Laboratory Animal Resources, Iowa State University, Ames, IA, United States
| | - Jackie Jens
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Swanand Sathe
- Veterinary Clinical Sciences, Iowa State University, Ames, IA, United States
| | - Frederick Goldman
- Department of Pediatrics, University of Alabama, Birmingham, AL, United States
| | - Erik R. Westin
- Department of Pediatrics, University of Alabama, Birmingham, AL, United States
| | - Jack C. M. Dekkers
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Jason W. Ross
- Department of Animal Science, Iowa State University, Ames, IA, United States
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Bommi PV, Chand V, Mukhopadhyay NK, Raychaudhuri P, Bagchi S. NER-factor DDB2 regulates HIF1α and hypoxia-response genes in HNSCC. Oncogene 2020; 39:1784-1796. [PMID: 31740787 DOI: 10.1038/s41388-019-1105-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 10/22/2019] [Accepted: 11/06/2019] [Indexed: 12/26/2022]
Abstract
Cancers in the oral/head & neck region (HNSCC) are aggressive due to high incidence of recurrence and distant metastasis. One prominent feature of aggressive HNSCC is the presence of severely hypoxic regions in tumors and activation of hypoxia-inducible factors (HIFs). In this study, we report that the XPE gene product DDB2 (damaged DNA binding protein 2), a nucleotide excision repair protein, is upregulated by hypoxia. Moreover, DDB2 inhibits HIF1α in HNSCC cells. It inhibits HIF1α in both normoxia and hypoxia by reducing mRNA expression. Knockdown of DDB2 enhances the expression of angiogenic markers and promotes tumor growth in a xenograft model. We show that DDB2 binds to an upstream promoter element in the HIF1Α gene and promotes histone H3K9 trimethylation around the binding site by recruiting Suv39h1. Also, we provide evidence that DDB2 has a significant suppressive effect on expression of the endogenous markers of hypoxia that are also prognostic indicators in HNSCC. Together, these results describe a new mechanism of hypoxia regulation that opposes expression of HIF1Α mRNA and the hypoxia-response genes.
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Affiliation(s)
- Prashant V Bommi
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, 801 S, Paulina Street, Chicago, IL, 60612, USA
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Biological Sciences Research Building (BSRB), 6767 Bertner Ave, Houston, TX, USA
| | - Vaibhav Chand
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, 900 S Ashland Avenue, Chicago, IL, 60607, USA
| | - Nishit K Mukhopadhyay
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, 900 S Ashland Avenue, Chicago, IL, 60607, USA
| | - Pradip Raychaudhuri
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, 900 S Ashland Avenue, Chicago, IL, 60607, USA.
| | - Srilata Bagchi
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, 801 S, Paulina Street, Chicago, IL, 60612, USA.
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Abstract
IL-17A is an important cytokine in intestinal inflammation. However, anti-IL-17A therapy does not improve clinical outcomes in patients with Crohn's disease. We aimed to evaluate the role of RORγt+ innate lymphoid cells (ILCs) in murine colitis models in the absence of IL-17A. An acute colitis model was induced with either dextran sulfate sodium (DSS) or trinitrobenzenesulfonic acid (TNBS) and a chronic colitis model was induced by CD4+CD45RBhi T cell transfer from either wild-type C57BL/6 or Il17a-/- mice. An anti-IL-17A antibody, secukinumab, was also used to inhibit IL-17A function in the colitis model. Flow cytometry was performed to analyze the population of RORγt+ ILCs in the colonic lamina propria of mice with chronic colitis. Acute intestinal inflammation due to DSS and TNBS was attenuated in IL-17A knockout mice, whereas chronic colitis was not relieved by T cell transfer from Il17a-/- mice (% of original body weight: wild-type mice vs. Il17a-/- mice, 81.9% vs. 82.2%; P = 0.922). However, the mean proportion of Lin-RORγt+ lymphocytes was higher after T cell transfer from Il17a-/- mice than that after T cell transfer from wild-type mice (28.8% vs. 18.5%). The proportion of Lin-RORγt+ was also increased in Rag2-/- mice that received T cell transfer from wild-type mice when anti-IL-17A antibody was administered (31.7%). Additionally, Il6 and Il22 tended to be highly expressed after T cell transfer from Il17a-/- mice. In conclusion, RORγt+ ILCs may have an important role in the pathogenesis of chronic colitis in the absence of IL-17A. Blocking the function of IL-17A may upregulate Il6 and recruit RORγt+ ILCs in chronic colitis, thereby upregulating IL-22 and worsening the clinical outcomes of patients with Crohn's disease.
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Affiliation(s)
- Chan Hyuk Park
- Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - A-Reum Lee
- Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Sang Bong Ahn
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - Chang Soo Eun
- Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Dong Soo Han
- Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea.
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Beck C, Castañeda-Zegarra S, Huse C, Xing M, Oksenych V. Mediator of DNA Damage Checkpoint Protein 1 Facilitates V(D)J Recombination in Cells Lacking DNA Repair Factor XLF. Biomolecules 2019; 10:biom10010060. [PMID: 31905950 PMCID: PMC7023129 DOI: 10.3390/biom10010060] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 11/16/2022] Open
Abstract
DNA double-strand breaks (DSBs) trigger the Ataxia telangiectasia mutated (ATM)-dependent DNA damage response (DDR), which consists of histone H2AX, MDC1, RNF168, 53BP1, PTIP, RIF1, Rev7, and Shieldin. Early stages of B and T lymphocyte development are dependent on recombination activating gene (RAG)-induced DSBs that form the basis for further V(D)J recombination. Non-homologous end joining (NHEJ) pathway factors recognize, process, and ligate DSBs. Based on numerous loss-of-function studies, DDR factors were thought to be dispensable for the V(D)J recombination. In particular, mice lacking Mediator of DNA Damage Checkpoint Protein 1 (MDC1) possessed nearly wild-type levels of mature B and T lymphocytes in the spleen, thymus, and bone marrow. NHEJ factor XRCC4-like factor (XLF)/Cernunnos is functionally redundant with ATM, histone H2AX, and p53-binding protein 1 (53BP1) during the lymphocyte development in mice. Here, we genetically inactivated MDC1, XLF, or both MDC1 and XLF in murine vAbl pro-B cell lines and, using chromosomally integrated substrates, demonstrated that MDC1 stimulates the V(D)J recombination in cells lacking XLF. Moreover, combined inactivation of MDC1 and XLF in mice resulted in synthetic lethality. Together, these findings suggest that MDC1 and XLF are functionally redundant during the mouse development, in general, and the V(D)J recombination, in particular.
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Affiliation(s)
- Carole Beck
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- St. Olavs Hospital, Trondheim University Hospital, Clinic of Medicine, Postboks 3250 Sluppen, 7006 Trondheim, Norway
| | - Sergio Castañeda-Zegarra
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- St. Olavs Hospital, Trondheim University Hospital, Clinic of Medicine, Postboks 3250 Sluppen, 7006 Trondheim, Norway
| | - Camilla Huse
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- St. Olavs Hospital, Trondheim University Hospital, Clinic of Medicine, Postboks 3250 Sluppen, 7006 Trondheim, Norway
| | - Mengtan Xing
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- St. Olavs Hospital, Trondheim University Hospital, Clinic of Medicine, Postboks 3250 Sluppen, 7006 Trondheim, Norway
| | - Valentyn Oksenych
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- St. Olavs Hospital, Trondheim University Hospital, Clinic of Medicine, Postboks 3250 Sluppen, 7006 Trondheim, Norway
- Department of Biosciences and Nutrition (BioNuT), Karolinska Institutet, 14183 Huddinge, Sweden
- Correspondence:
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Merentitis D, Nguyen BD, Samartzis EP, Noske A, Brandt S, Dedes KJ. Loss of MDC1 in Endometrial Carcinoma Is Associated With Loss of MRN Complex and MMR Deficiency. Anticancer Res 2019; 39:6547-6553. [PMID: 31810920 DOI: 10.21873/anticanres.13870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/03/2019] [Accepted: 11/06/2019] [Indexed: 11/10/2022]
Abstract
AIM To evaluate the frequency of loss of mediator of DNA damage checkpoint protein 1 (MDC1) protein expression in endometrial cancer (EC) and to determine whether loss of MDC1 is associated with certain clinicopathological parameters. MATERIALS AND METHODS MDC1 expression was examined in 426 samples of EC. The nuclear immunoreactivity of the protein was defined as: negative, weak, moderate and strong. RESULTS Loss of MDC1 expression (defined as negative nuclear staining) was found in 8.9% (38/426) of ECs and was significantly associated with the loss of MRE11 homolog, double-strand break repair nuclease, RAD50 double-strand break repair protein and nibrin complex components. In addition, loss of expression of MDC1 showed a significant correlation with any mismatch repair deficiency, with endometrioid histological subtype and low tumour grading. CONCLUSION Based on these findings, we suggest that MDC1 loss frequently occurs in ECs with microsatellite instability. Due to deficient homologous recombination DNA repair, MDC1-negative ECs might show an increased sensitivity to poly(ADP-ribose) polymerase-inhibitory therapy.
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Affiliation(s)
- Danae Merentitis
- Department of Gynecologic Oncology, University Hospital of Zurich, Zurich, Switzerland
| | - Bich Doan Nguyen
- Department of Gynecologic Oncology, University Hospital of Zurich, Zurich, Switzerland
| | | | - Aurelia Noske
- Institute of Pathology, University Hospital of Zurich, Zurich, Switzerland
| | - Simone Brandt
- Institute of Pathology, University Hospital of Zurich, Zurich, Switzerland
| | - Konstantin J Dedes
- Department of Gynecologic Oncology, University Hospital of Zurich, Zurich, Switzerland
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Sasaki M, Chiwaki F, Kuroda T, Komatsu M, Matsusaki K, Kohno T, Sasaki H, Ogiwara H. Efficacy of glutathione inhibitors for the treatment of ARID1A-deficient diffuse-type gastric cancers. Biochem Biophys Res Commun 2019; 522:342-347. [PMID: 31761322 DOI: 10.1016/j.bbrc.2019.11.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023]
Abstract
ARID1A, a subunit of the SWI/SNF chromatin remodeling complex, increases the intracellular levels of glutathione (GSH) by upregulating solute carrier family 7 member 11 (SLC7A11). Diffuse-type gastric cancer is an aggressive tumor that is frequently associated with ARID1A deficiency. Here, we investigated the efficacy of GSH inhibition for the treatment of diffuse-type gastric cancer with ARID1A deficiency using ARID1A-proficient or -deficient patient-derived cells (PDCs). ARID1A-deficient PDCs were selectively sensitive to the GSH inhibitor APR-246, the GCLC inhibitor buthionine sulfoximine, and the SLC7A11 inhibitor erastin. Expression of SLC7A11, which is required for incorporation of cystine, and the basal level of GSH were lower in ARID1A-deficient than in ARID1A-proficient PDCs. Treatment with APR-246 decreased intracellular GSH levels, leading to the excessive production of reactive oxygen species (ROS), and these phenotypes are suppressed by supply of cystine and GSH compensators. Taken together, vulnerability of ARID1A-deficient gastric cancer cells to GSH inhibition is caused by decreased GSH synthesis due to diminished SLC7A11 expression. The present results suggest that GSH inhibition is a promising strategy for the treatment of diffuse-type gastric cancers with ARID1A deficiency.
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Affiliation(s)
- Mariko Sasaki
- Division of Cancer Therapeutics, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan; Molecular Oncology, Jikei University Graduate School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Fumiko Chiwaki
- Department of Translational Oncology, Fundamental Innovative Oncology Core Center, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Takafumi Kuroda
- Division of Genome Biology, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Masayuki Komatsu
- Department of Translational Oncology, Fundamental Innovative Oncology Core Center, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Keisuke Matsusaki
- Kanamecho Hospital, 1-11-13, Kanamecho, Toshima-ku, Tokyo, 171-0043, Japan
| | - Takashi Kohno
- Molecular Oncology, Jikei University Graduate School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan; Division of Genome Biology, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Hiroki Sasaki
- Department of Translational Oncology, Fundamental Innovative Oncology Core Center, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Hideaki Ogiwara
- Division of Cancer Therapeutics, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
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Abstract
Objective Enhanced glucagon signaling and hepatic glucose production (HGP) can account for hyperglycemia in patients with obesity and type 2 diabetes. However, the detailed molecular mechanisms underlying the enhanced HGP in these patients are not fully understood. Here, we identify Purβ as a positive regulator of HGP and study its molecular mechanisms in the regulation of HGP both in vivo and in vitro. Methods Adenovirus-mediated knockdown or overexpression of Purβ was performed in either primary hepatocytes or the livers of db/db mice. Glucose metabolism, insulin sensitivity, and HGP were determined by glucose, insulin, and lactate tolerance tests, respectively. Purβ/ADCY6 protein levels, glucagon signaling (p-CREB/CREB), and insulin signaling (p-Akt/Akt) were measured by immunoblotting. Gene expression was measured by RNA-seq and real-time quantitative polymerase chain reaction. Luciferase reporter and chromatin immunoprecipitation assays were used to study the interaction between Purβ and the Adcy6 promoter. Results Purβ was abnormally elevated in obese mice and was also increased under fasting conditions or via the glucagon signaling pathway, which promoted HGP by increasing Adcy6 expression. Liver-specific knockdown of Purβ in db/db mice significantly ameliorated hyperglycemia and glucose intolerance by suppressing the glucagon/ADCY6/cAMP/PKA/CREB signaling pathway. Consistent with this observation, the knockdown of Purβ also inhibited glucose production in isolated primary hepatocytes by inhibiting the glucagon/ADCY6/cAMP/PKA/CREB signaling pathway, whereas the overexpression of Purβ promoted glucose production by activating this signaling pathway. Mechanistically, Purβ directly binds to the promoter of the Adcy6 gene and thereby promotes its transcription. Conclusions Taken together, these results illustrate a new model in which Purβ functions to regulate the glucagon/ADCY6/cAMP/PKA/CREB signaling pathway to help maintain glucose homeostasis. Purβ was identified as a novel positive regulator of hepatic glucose production. Purβ directly binds to the promoter of the Adcy6 gene, inducing its expression and activating the cAMP/PKA/CREB signaling pathway. Liver-specific knockdown of Purβ in db/db mice significantly ameliorates hyperglycemia and glucose intolerance by suppressing the ADCY6/cAMP/PKA/CREB signaling pathway.
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Affiliation(s)
- Linna Jia
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Sciences, Northeast Normal University, Changchun, Jilin, 130024, China; HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Yunfeng Jiang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Xinzhi Li
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Zheng Chen
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001, China.
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Carosso GA, Boukas L, Augustin JJ, Nguyen HN, Winer BL, Cannon GH, Robertson JD, Zhang L, Hansen KD, Goff LA, Bjornsson HT. Precocious neuronal differentiation and disrupted oxygen responses in Kabuki syndrome. JCI Insight 2019; 4:129375. [PMID: 31465303 PMCID: PMC6824316 DOI: 10.1172/jci.insight.129375] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/23/2019] [Indexed: 12/12/2022] Open
Abstract
Chromatin modifiers act to coordinate gene expression changes critical to neuronal differentiation from neural stem/progenitor cells (NSPCs). Lysine-specific methyltransferase 2D (KMT2D) encodes a histone methyltransferase that promotes transcriptional activation and is frequently mutated in cancers and in the majority (>70%) of patients diagnosed with the congenital, multisystem intellectual disability disorder Kabuki syndrome 1 (KS1). Critical roles for KMT2D are established in various non-neural tissues, but the effects of KMT2D loss in brain cell development have not been described. We conducted parallel studies of proliferation, differentiation, transcription, and chromatin profiling in KMT2D-deficient human and mouse models to define KMT2D-regulated functions in neurodevelopmental contexts, including adult-born hippocampal NSPCs in vivo and in vitro. We report cell-autonomous defects in proliferation, cell cycle, and survival, accompanied by early NSPC maturation in several KMT2D-deficient model systems. Transcriptional suppression in KMT2D-deficient cells indicated strong perturbation of hypoxia-responsive metabolism pathways. Functional experiments confirmed abnormalities of cellular hypoxia responses in KMT2D-deficient neural cells and accelerated NSPC maturation in vivo. Together, our findings support a model in which loss of KMT2D function suppresses expression of oxygen-responsive gene programs important to neural progenitor maintenance, resulting in precocious neuronal differentiation in a mouse model of KS1.
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Affiliation(s)
- Giovanni A. Carosso
- Predoctoral Training Program in Human Genetics
- McKusick-Nathans Institute of Genetic Medicine
| | - Leandros Boukas
- Predoctoral Training Program in Human Genetics
- McKusick-Nathans Institute of Genetic Medicine
- Department of Biostatistics
| | - Jonathan J. Augustin
- McKusick-Nathans Institute of Genetic Medicine
- Predoctoral Training Program in Biochemistry, Cellular, and Molecular Biology
- Solomon H. Snyder Department of Neuroscience
| | | | | | | | | | - Li Zhang
- McKusick-Nathans Institute of Genetic Medicine
| | - Kasper D. Hansen
- McKusick-Nathans Institute of Genetic Medicine
- Department of Biostatistics
| | - Loyal A. Goff
- McKusick-Nathans Institute of Genetic Medicine
- Solomon H. Snyder Department of Neuroscience
| | - Hans T. Bjornsson
- McKusick-Nathans Institute of Genetic Medicine
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
- Landspitali University Hospital, Reykjavik, Iceland
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