1
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Caeiro LD, Nakata Y, Borges RL, Zha M, Garcia-Martinez L, Bañuelos CP, Stransky S, Liu T, Chan HL, Brabson J, Domínguez D, Zhang Y, Lewis PW, Aznar Benitah S, Cimmino L, Bilbao D, Sidoli S, Wang Z, Verdun RE, Morey L. Methylation of histone H3 lysine 36 is a barrier for therapeutic interventions of head and neck squamous cell carcinoma. Genes Dev 2024; 38:46-69. [PMID: 38286657 PMCID: PMC10903949 DOI: 10.1101/gad.351408.123] [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: 12/01/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024]
Abstract
Approximately 20% of head and neck squamous cell carcinomas (HNSCCs) exhibit reduced methylation on lysine 36 of histone H3 (H3K36me) due to mutations in histone methylase NSD1 or a lysine-to-methionine mutation in histone H3 (H3K36M). Whether such alterations of H3K36me can be exploited for therapeutic interventions is still unknown. Here, we show that HNSCC models expressing H3K36M can be divided into two groups: those that display aberrant accumulation of H3K27me3 and those that maintain steady levels of H3K27me3. The former group exhibits reduced proliferation, genome instability, and heightened sensitivity to genotoxic agents like PARP1/2 inhibitors. Conversely, H3K36M HNSCC models with constant H3K27me3 levels lack these characteristics unless H3K27me3 is elevated by DNA hypomethylating agents or inhibiting H3K27me3 demethylases KDM6A/B. Mechanistically, H3K36M reduces H3K36me by directly impeding the activities of the histone methyltransferase NSD3 and the histone demethylase LSD2. Notably, aberrant H3K27me3 levels induced by H3K36M expression are not a bona fide epigenetic mark because they require continuous expression of H3K36M to be inherited. Moreover, increased sensitivity to PARP1/2 inhibitors in H3K36M HNSCC models depends solely on elevated H3K27me3 levels and diminishing BRCA1- and FANCD2-dependent DNA repair. Finally, a PARP1/2 inhibitor alone reduces tumor burden in a H3K36M HNSCC xenograft model with elevated H3K27me3, whereas in a model with consistent H3K27me3, a combination of PARP1/2 inhibitors and agents that up-regulate H3K27me3 proves to be successful. These findings underscore the crucial balance between H3K36 and H3K27 methylation in maintaining genome instability, offering new therapeutic options for patients with H3K36me-deficient tumors.
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Affiliation(s)
- Lucas D Caeiro
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Yuichiro Nakata
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Rodrigo L Borges
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Mengsheng Zha
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Liliana Garcia-Martinez
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Carolina P Bañuelos
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Stephanie Stransky
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Tong Liu
- Department of Computer Science, University of Miami, Coral Gables, Florida 33124, USA
| | - Ho Lam Chan
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - John Brabson
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Diana Domínguez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona 08028, Spain
| | - Yusheng Zhang
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Peter W Lewis
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Salvador Aznar Benitah
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona 08028, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona 08010, Spain
| | - Luisa Cimmino
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Daniel Bilbao
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Zheng Wang
- Department of Computer Science, University of Miami, Coral Gables, Florida 33124, USA
| | - Ramiro E Verdun
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA;
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
- Geriatric Research, Education, and Clinical Center, Miami Veterans Affairs Healthcare System, Miami, Florida 33125, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, Miami, Florida 33136, USA;
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
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2
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Basu S, Shukron O, Hall D, Parutto P, Ponjavic A, Shah D, Boucher W, Lando D, Zhang W, Reynolds N, Sober LH, Jartseva A, Ragheb R, Ma X, Cramard J, Floyd R, Balmer J, Drury TA, Carr AR, Needham LM, Aubert A, Communie G, Gor K, Steindel M, Morey L, Blanco E, Bartke T, Di Croce L, Berger I, Schaffitzel C, Lee SF, Stevens TJ, Klenerman D, Hendrich BD, Holcman D, Laue ED. Publisher Correction: Live-cell three-dimensional single-molecule tracking reveals modulation of enhancer dynamics by NuRD. Nat Struct Mol Biol 2024; 31:390. [PMID: 38102414 PMCID: PMC10873192 DOI: 10.1038/s41594-023-01179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Affiliation(s)
- S Basu
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - O Shukron
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France
| | - D Hall
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - P Parutto
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France
| | - A Ponjavic
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
- School of Physics and Astronomy, University of Leeds, Leeds, UK
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - D Shah
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - W Boucher
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - D Lando
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - W Zhang
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - N Reynolds
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - L H Sober
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - A Jartseva
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - R Ragheb
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - X Ma
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - J Cramard
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - R Floyd
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Centre for Biodiversity Genomics, University of Guelph, Guelph, Ontario, Canada
| | - J Balmer
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - T A Drury
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - A R Carr
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - L-M Needham
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - A Aubert
- The European Molecular Biology Laboratory EMBL, Grenoble, France
| | - G Communie
- The European Molecular Biology Laboratory EMBL, Grenoble, France
| | - K Gor
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- The European Molecular Biology Laboratory, Heidelberg, Germany
| | - M Steindel
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - L Morey
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, Miami, FL, USA
| | - E Blanco
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - T Bartke
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Functional Epigenetics, Neuherberg, Germany
| | - L Di Croce
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - I Berger
- School of Biochemistry, University of Bristol, Bristol, UK
| | - C Schaffitzel
- School of Biochemistry, University of Bristol, Bristol, UK
| | - S F Lee
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - T J Stevens
- MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK
| | - D Klenerman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
| | - B D Hendrich
- Department of Biochemistry, University of Cambridge, Cambridge, UK.
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK.
| | - D Holcman
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France.
| | - E D Laue
- Department of Biochemistry, University of Cambridge, Cambridge, UK.
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK.
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3
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Ko T, Choi R, Issa K, Gupta R, Llinas E, Morey L, Finlay JB, Goldstein BJ. Polycomb repressive complex 2 regulates basal cell fate during adult olfactory neurogenesis. Stem Cell Reports 2023; 18:2283-2296. [PMID: 37832538 PMCID: PMC10679661 DOI: 10.1016/j.stemcr.2023.09.008] [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: 03/09/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/15/2023] Open
Abstract
Adult neurogenesis occurs in the mammalian olfactory epithelium to maintain populations of neurons that are vulnerable to injury yet essential for olfaction. Multipotent olfactory basal stem cells are activated by damage, although mechanisms regulating lineage decisions are not understood. Using mouse lesion models, we focused on defining the role of Polycomb repressive complexes (PRCs) in olfactory neurogenesis. PRC2 has a well-established role in developing tissues, orchestrating transcriptional programs via chromatin modification. PRC2 proteins are expressed in olfactory globose basal cells (GBCs) and nascent neurons. Conditional PRC2 loss perturbs lesion-induced neuron production, accompanied by altered histone modifications and misexpression of lineage-specific transcription factors in GBCs. De-repression of Sox9 in PRC2-mutant GBCs is accompanied by increased Bowman's gland production, defining an unrecognized role for PRC2 in regulating gland versus neuron cell fate. Our findings support a model for PRC2-dependent mechanisms promoting sensory neuronal differentiation in an adult neurogenic niche.
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Affiliation(s)
- Tiffany Ko
- Department of Neurobiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Rhea Choi
- Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, NC 27710, USA
| | - Khalil Issa
- Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, NC 27710, USA
| | - Rupali Gupta
- Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, NC 27710, USA
| | - Edward Llinas
- Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, NC 27710, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center and Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - John B Finlay
- Medical Scientist Training Program, Duke University School of Medicine, Durham, NC 27710, USA
| | - Bradley J Goldstein
- Department of Neurobiology, Duke University School of Medicine, Durham, NC 27710, USA; Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, NC 27710, USA.
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4
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Caeiro LD, Nakata Y, Borges RL, Garcia-Martinez L, Bañuelos CP, Stransky S, Chan HL, Brabson J, Domínguez D, Zhang Y, Lewis PW, Aznar-Benitah S, Cimmino L, Bilbao D, Sidoli S, Verdun RE, Morey L. Methylation of histone H3 lysine 36 is a barrier for therapeutic interventions of head and neck squamous cell carcinoma. bioRxiv 2023:2023.11.06.565847. [PMID: 38076924 PMCID: PMC10705544 DOI: 10.1101/2023.11.06.565847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Approximately 20% of head and neck squamous cell carcinomas (HNSCC) exhibit reduced methylation on lysine 36 of histone H3 (H3K36me) due to mutations in histone methylase NSD1 or a lysine-to-methionine mutation in histone H3 (H3K36M). Whether such alterations of H3K36me can be exploited for therapeutic interventions is still unknown. Here, we show that HNSCC models expressing H3K36M can be divided into two groups: those that display aberrant accumulation of H3K27me3 and those that maintain steady levels of H3K27me3. The first group shows decreased proliferation, genome instability, and increased sensitivity to genotoxic agents, such as PARP1/2 inhibitors. In contrast, the H3K36M HNSCC models with steady H3K27me3 levels do not exhibit these characteristics unless H3K27me3 levels are elevated, either by DNA hypomethylating agents or by inhibiting the H3K27me3 demethylases KDM6A/B. Mechanistically, we found that H3K36M reduces H3K36me by directly impeding the activities of the histone methyltransferase NSD3 and the histone demethylase LSD2. Notably, we found that aberrant H3K27me3 levels induced by H3K36M expression is not a bona fide epigenetic mark in HNSCC since it requires continuous expression of H3K36M to be inherited. Moreover, increased sensitivity of H3K36M HNSCC models to PARP1/2 inhibitors solely depends on the increased H3K27me3 levels. Indeed, aberrantly high H3K27me3 levels decrease BRCA1 and FANCD2-dependent DNA repair, resulting in higher sensitivity to DNA breaks and replication stress. Finally, in support of our in vitro findings, a PARP1/2 inhibitor alone reduce tumor burden in a H3K36M HNSCC xenograft model with elevated H3K27me3, whereas in a H3K36M HNSCC xenograft model with consistent H3K27me3 levels, a combination of PARP1/2 inhibitors and agents that upregulate H3K27me3 proves to be successful. In conclusion, our findings underscore a delicate balance between H3K36 and H3K27 methylation, essential for maintaining genome stability. This equilibrium presents promising therapeutic opportunities for patients with H3K36me-deficient tumors.
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Affiliation(s)
- Lucas D. Caeiro
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Yuichiro Nakata
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Rodrigo L. Borges
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Liliana Garcia-Martinez
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Carolina P. Bañuelos
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Stephanie Stransky
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ho Lam Chan
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - John Brabson
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Diana Domínguez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Yusheng Zhang
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Peter W. Lewis
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53706, USA
| | - Salvador Aznar-Benitah
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- ICREA, Catalan Institution for Research and Advanced Studies, Barcelona, Spain
| | - Luisa Cimmino
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Daniel Bilbao
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ramiro E. Verdun
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Geriatric Research, Education, and Clinical Center, Miami VA Healthcare System, Miami, FL, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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5
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Basu S, Shukron O, Hall D, Parutto P, Ponjavic A, Shah D, Boucher W, Lando D, Zhang W, Reynolds N, Sober LH, Jartseva A, Ragheb R, Ma X, Cramard J, Floyd R, Balmer J, Drury TA, Carr AR, Needham LM, Aubert A, Communie G, Gor K, Steindel M, Morey L, Blanco E, Bartke T, Di Croce L, Berger I, Schaffitzel C, Lee SF, Stevens TJ, Klenerman D, Hendrich BD, Holcman D, Laue ED. Live-cell three-dimensional single-molecule tracking reveals modulation of enhancer dynamics by NuRD. Nat Struct Mol Biol 2023; 30:1628-1639. [PMID: 37770717 PMCID: PMC10643137 DOI: 10.1038/s41594-023-01095-4] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 08/14/2023] [Indexed: 09/30/2023]
Abstract
To understand how the nucleosome remodeling and deacetylase (NuRD) complex regulates enhancers and enhancer-promoter interactions, we have developed an approach to segment and extract key biophysical parameters from live-cell three-dimensional single-molecule trajectories. Unexpectedly, this has revealed that NuRD binds to chromatin for minutes, decompacts chromatin structure and increases enhancer dynamics. We also uncovered a rare fast-diffusing state of enhancers and found that NuRD restricts the time spent in this state. Hi-C and Cut&Run experiments revealed that NuRD modulates enhancer-promoter interactions in active chromatin, allowing them to contact each other over longer distances. Furthermore, NuRD leads to a marked redistribution of CTCF and, in particular, cohesin. We propose that NuRD promotes a decondensed chromatin environment, where enhancers and promoters can contact each other over longer distances, and where the resetting of enhancer-promoter interactions brought about by the fast decondensed chromatin motions is reduced, leading to more stable, long-lived enhancer-promoter relationships.
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Affiliation(s)
- S Basu
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - O Shukron
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France
| | - D Hall
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - P Parutto
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France
| | - A Ponjavic
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
- School of Physics and Astronomy, University of Leeds, Leeds, UK
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - D Shah
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - W Boucher
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - D Lando
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - W Zhang
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - N Reynolds
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - L H Sober
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - A Jartseva
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - R Ragheb
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - X Ma
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - J Cramard
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - R Floyd
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Centre for Biodiversity Genomics, University of Guelph, Guelph, Ontario, Canada
| | - J Balmer
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - T A Drury
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - A R Carr
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - L-M Needham
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - A Aubert
- The European Molecular Biology Laboratory EMBL, Grenoble, France
| | - G Communie
- The European Molecular Biology Laboratory EMBL, Grenoble, France
| | - K Gor
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- The European Molecular Biology Laboratory, Heidelberg, Germany
| | - M Steindel
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - L Morey
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, Miami, FL, USA
| | - E Blanco
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - T Bartke
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Functional Epigenetics, Neuherberg, Germany
| | - L Di Croce
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - I Berger
- School of Biochemistry, University of Bristol, Bristol, UK
| | - C Schaffitzel
- School of Biochemistry, University of Bristol, Bristol, UK
| | - S F Lee
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - T J Stevens
- MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK
| | - D Klenerman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
| | - B D Hendrich
- Department of Biochemistry, University of Cambridge, Cambridge, UK.
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK.
| | - D Holcman
- Department of Applied Mathematics and Computational Biology, Ecole Normale Supérieure, Paris, France.
| | - E D Laue
- Department of Biochemistry, University of Cambridge, Cambridge, UK.
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge, UK.
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6
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Mas G, Man N, Nakata Y, Martinez-Caja C, Karl D, Beckedorff F, Tamiro F, Chen C, Duffort S, Itonaga H, Mookhtiar AK, Kunkalla K, Valencia AM, Collings CK, Kadoch C, Vega F, Kogan SC, Shiekhattar R, Morey L, Bilbao D, Nimer SD. The SWI/SNF chromatin-remodeling subunit DPF2 facilitates NRF2-dependent antiinflammatory and antioxidant gene expression. J Clin Invest 2023; 133:e158419. [PMID: 37200093 PMCID: PMC10313367 DOI: 10.1172/jci158419] [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: 01/12/2022] [Accepted: 05/16/2023] [Indexed: 05/20/2023] Open
Abstract
During emergency hematopoiesis, hematopoietic stem cells (HSCs) rapidly proliferate to produce myeloid and lymphoid effector cells, a response that is critical against infection or tissue injury. If unresolved, this process leads to sustained inflammation, which can cause life-threatening diseases and cancer. Here, we identify a role of double PHD fingers 2 (DPF2) in modulating inflammation. DPF2 is a defining subunit of the hematopoiesis-specific BAF (SWI/SNF) chromatin-remodeling complex, and it is mutated in multiple cancers and neurological disorders. We uncovered that hematopoiesis-specific Dpf2-KO mice developed leukopenia, severe anemia, and lethal systemic inflammation characterized by histiocytic and fibrotic tissue infiltration resembling a clinical hyperinflammatory state. Dpf2 loss impaired the polarization of macrophages responsible for tissue repair, induced the unrestrained activation of Th cells, and generated an emergency-like state of HSC hyperproliferation and myeloid cell-biased differentiation. Mechanistically, Dpf2 deficiency resulted in the loss of the BAF catalytic subunit BRG1 from nuclear factor erythroid 2-like 2-controlled (NRF2-controlled) enhancers, impairing the antioxidant and antiinflammatory transcriptional response needed to modulate inflammation. Finally, pharmacological reactivation of NRF2 suppressed the inflammation-mediated phenotypes and lethality of Dpf2Δ/Δ mice. Our work establishes an essential role of the DPF2-BAF complex in licensing NRF2-dependent gene expression in HSCs and immune effector cells to prevent chronic inflammation.
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Affiliation(s)
- Gloria Mas
- Sylvester Comprehensive Cancer Center and
| | - Na Man
- Sylvester Comprehensive Cancer Center and
| | - Yuichiro Nakata
- Sylvester Comprehensive Cancer Center and
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | | | - Felipe Beckedorff
- Sylvester Comprehensive Cancer Center and
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | - Chuan Chen
- Sylvester Comprehensive Cancer Center and
| | | | | | | | | | - Alfredo M. Valencia
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Chemical Biology Program, Harvard University, Cambridge, Massachusetts, USA
| | - Clayton K. Collings
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Cigall Kadoch
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Francisco Vega
- Sylvester Comprehensive Cancer Center and
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Scott C. Kogan
- Helen Diller Family Comprehensive Cancer Center and
- Department of Laboratory Medicine, UCSF, San Francisco, California, USA
| | - Ramin Shiekhattar
- Sylvester Comprehensive Cancer Center and
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center and
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Daniel Bilbao
- Sylvester Comprehensive Cancer Center and
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Stephen D. Nimer
- Sylvester Comprehensive Cancer Center and
- Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
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7
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Morey L, Fernández B, Tey L, Biel C, Robles-Aguilar A, Meers E, Soler J, Porta R, Cots M, Riau V. Acidification and solar drying of manure-based digestate to produce improved fertilizing products. J Environ Manage 2023; 336:117664. [PMID: 36921470 PMCID: PMC10060120 DOI: 10.1016/j.jenvman.2023.117664] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/16/2023] [Accepted: 03/02/2023] [Indexed: 06/17/2023]
Abstract
The increase in energy and fertilizer consumption makes it necessary to develop sustainable alternatives for agriculture. Anaerobic digestion and digestates appeared to be suitable options. However, untreated digestates still have high water content and can increase greenhouse gas emissions during storage and land application. In this study, manure-derived digestate and solid fraction of digestate after separation were treated with a novel solar drying technology to reduce their water content, combined with acidification to reduce the gaseous emissions. The acidified digestate and acidified solid fraction of digestate recovered more nitrogen and ammonia nitrogen than their respective non-acidified products (1.5-1.3 times for TN; 14 times for TAN). Ammonia and methane emissions were reduced up to 94% and 72% respectively, compared to the non-acidified ones, while N2O increased more than 3 times. Dried digestate and dried acidified digestate can be labeled as NPK organic fertilizer regarding the European regulation, and the dried solid fraction and the improved dried acidified solid fraction can be labeled as N or P organic fertilizer. Moreover, plant tests showed that N concentrations in fresh lettuce leaves were within the EU limit with all products in all the cases. However, zinc concentration appeared to be a limitation in some of the products as their concentration exceeded the European legal limits.
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Affiliation(s)
- L Morey
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain; Universitat Politècnica de Catalunya, Departament de Projectes d'Enginyeria, Campus Nord, Edifici C2, 08034, Barcelona, Spain.
| | - B Fernández
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain.
| | - L Tey
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain
| | - C Biel
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain
| | - A Robles-Aguilar
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain; University of Gent, Department of Green Chemistry & Technology, 9000, Gent, Belgium
| | - E Meers
- University of Gent, Department of Green Chemistry & Technology, 9000, Gent, Belgium
| | - J Soler
- EMA Depuració i Enginyería de l'Aigua, S.L. Avda. Sant Jordi, 176 Baixos, 17800, Olot, Girona, Spain
| | - R Porta
- PORGAPORCS S.L, Carrer Sant Miquel, 53, 25245, Vila-sana, Lleida, Spain
| | - M Cots
- PORGAPORCS S.L, Carrer Sant Miquel, 53, 25245, Vila-sana, Lleida, Spain
| | - V Riau
- IRTA Institute of Agrifood Research and Technology, Torre Marimon, E08140 Caldes de Montbui, Barcelona, Spain
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8
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Mehra S, Garrido V, Singh S, Silva IDC, Zhou Z, Srinivasan S, Nivelo LA, Bianchi A, Adams A, Amirian H, Morey L, Yuguang B, Villarino A, Datta J, Merchant N, Nagathihalli N. Abstract 653: Tumor cell-macrophage crosstalk drives immune suppression in pancreatic cancer. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Background: Pancreatic ductal adenocarcinoma (PDAC) due to its unique genetic makeup and immunosuppressive tumor microenvironment (TME) produce a lack of response to current therapies. Macrophages, constitute a large innate immune subset and play a vital role in establishing an immune-suppressive microenvironment. Previously, we have identified Cyclic AMP Response Element Binding protein 1 (CREB) as a tumor cell-intrinsic oncogenic factor that promotes disease aggressiveness, poor survival, and immune suppression. Based on these, we sought to determine CREB mediated mechanisms of tumor-macrophage cross talk in driving immunosuppressive phenotype in PDAC.
Methods: We have generated a genetically engineered mouse model (GEMM) of pancreas-specific CREB deletion (CREBfl/fl) in LSL-KrasG12D/+; Trp53 R172H/+; Pdx1Cre/+ (KPC) mice. CRISPR/CAS9-based genomic editing was utilized to ablate CREB (CREBKO) in KPC tumor cells. RNA-sequencing analysis was performed in KPC CREBKO tumor cells. ChIP-qPCR analysis was performed in KPC tumor cells. Orthotopic tumor implantation of these cells was performed in the pancreata of mice. Immunophenotyping was accomplished to assess changes in the immune subsets with CREB deletion in vivo. Additionally, these tissues were also processed for single-cell RNA (scRNA) transcriptomics analysis to evaluate the impact of CREB deletion on different cellular constituents within the TME.
Results: CREB deletion in the KPC GEMM led to a significant reduction in the primary tumor burden, liver metastases, and improved overall survival compared to wild-type KPC. In assessing the immune repercussions of CREB deletion, we observed a decreased infiltration of tumor-promoting CD11b+ F4/80+ CD206+ tumor-associated macrophages (TAMs) and a concomitant increase in the antigen-presenting M1-like macrophages (F4/80+MHC-IIhighCD86high). Additionally, scRNA sequencing analysis within the macrophage compartment in CREBKO tumors revealed significant enrichment of M1 hallmark signaling pathways. Further, CREB ablation in these tumors facilitated increased infiltration of activated effector memory CD8+ T cells and resulted in enhanced adaptive immune response. RNA transcriptomic-based analysis of CREBKO tumor cells revealed downregulation of Leukemia inhibitory factor (LIF) as of the top targets. Mechanistically, ChIP qPCR analysis after CREB1 pulldown confirmed its occupancy on LIF promoter region. Further, on exploring the role of CREB regulated LIF on immune subsets, incubation of macrophages with CREBWT conditioned media in the presence of LIF neutralizing antibody or blocking its receptor (LIFR) decreases polarization of macrophages towards M2 like phenotype.
Conclusion: These findings broaden our understanding of the tumor cell-intrinsic role of CREB in fostering immunosuppressive profile via LIF by promoting skewness of TAMs towards M2 like state in PDAC.
Citation Format: Siddharth Mehra, Vanessa Garrido, Samara Singh, Iago De Castro Silva, Zhiqun Zhou, Supriya Srinivasan, Luis Alberto Nivelo, Anna Bianchi, Andrew Adams, Haleh Amirian, Lluis Morey, Ban Yuguang, Alejandro Villarino, Jashodeep Datta, Nipun Merchant, Nagaraj Nagathihalli. Tumor cell-macrophage crosstalk drives immune suppression in pancreatic cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 653.
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9
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Doyle EJ, Morey L, Conway E. Know when to fold 'em: Polycomb complexes in oncogenic 3D genome regulation. Front Cell Dev Biol 2022; 10:986319. [PMID: 36105358 PMCID: PMC9464936 DOI: 10.3389/fcell.2022.986319] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
Chromatin is spatially and temporally regulated through a series of orchestrated processes resulting in the formation of 3D chromatin structures such as topologically associating domains (TADs), loops and Polycomb Bodies. These structures are closely linked to transcriptional regulation, with loss of control of these processes a frequent feature of cancer and developmental syndromes. One such oncogenic disruption of the 3D genome is through recurrent dysregulation of Polycomb Group Complex (PcG) functions either through genetic mutations, amplification or deletion of genes that encode for PcG proteins. PcG complexes are evolutionarily conserved epigenetic complexes. They are key for early development and are essential transcriptional repressors. PcG complexes include PRC1, PRC2 and PR-DUB which are responsible for the control of the histone modifications H2AK119ub1 and H3K27me3. The spatial distribution of the complexes within the nuclear environment, and their associated modifications have profound effects on the regulation of gene transcription and the 3D genome. Nevertheless, how PcG complexes regulate 3D chromatin organization is still poorly understood. Here we glean insights into the role of PcG complexes in 3D genome regulation and compaction, how these processes go awry during tumorigenesis and the therapeutic implications that result from our insights into these mechanisms.
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Affiliation(s)
- Emma J. Doyle
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
| | - Lluis Morey
- Sylvester Comprehensive Cancer Centre, Miami, FL, United States
- Department of Human Genetics, Biomedical Research Building, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Eric Conway
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
- Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
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10
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Pérez-Núñez I, Rozalén C, Palomeque JÁ, Sangrador I, Dalmau M, Comerma L, Hernández-Prat A, Casadevall D, Menendez S, Liu DD, Shen M, Berenguer J, Ruiz IR, Peña R, Montañés JC, Albà MM, Bonnin S, Ponomarenko J, Gomis RR, Cejalvo JM, Servitja S, Marzese DM, Morey L, Voorwerk L, Arribas J, Bermejo B, Kok M, Pusztai L, Kang Y, Albanell J, Celià-Terrassa T. LCOR mediates interferon-independent tumor immunogenicity and responsiveness to immune-checkpoint blockade in triple-negative breast cancer. Nat Cancer 2022; 3:355-370. [PMID: 35301507 DOI: 10.1038/s43018-022-00339-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 01/21/2022] [Indexed: 01/05/2023]
Abstract
Ligand-dependent corepressor (LCOR) mediates normal and malignant breast stem cell differentiation. Cancer stem cells (CSCs) generate phenotypic heterogeneity and drive therapy resistance, yet their role in immunotherapy is poorly understood. Here we show that immune-checkpoint blockade (ICB) therapy selects for LCORlow CSCs with reduced antigen processing/presentation machinery (APM) driving immune escape and ICB resistance in triple-negative breast cancer (TNBC). We unveil an unexpected function of LCOR as a master transcriptional activator of APM genes binding to IFN-stimulated response elements (ISREs) in an IFN signaling-independent manner. Through genetic modification of LCOR expression, we demonstrate its central role in modulation of tumor immunogenicity and ICB responsiveness. In TNBC, LCOR associates with ICB clinical response. Importantly, extracellular vesicle (EV) Lcor-messenger RNA therapy in combination with anti-PD-L1 overcame resistance and eradicated breast cancer metastasis in preclinical models. Collectively, these data support LCOR as a promising target for enhancement of ICB efficacy in TNBC, by boosting of tumor APM independently of IFN.
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Affiliation(s)
- Iván Pérez-Núñez
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Catalina Rozalén
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - José Ángel Palomeque
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Irene Sangrador
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Mariona Dalmau
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Laura Comerma
- Pathology Department, Hospital del Mar, Barcelona, Spain
| | - Anna Hernández-Prat
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - David Casadevall
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Silvia Menendez
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Daniel Dan Liu
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA, USA
| | - Minhong Shen
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Jordi Berenguer
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Irene Rius Ruiz
- Preclinical Research Program, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Raul Peña
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - José Carlos Montañés
- Research Program on Biomedical Informatics, Hospital del Mar Medical Research Institute and Universitat Pompeu Fabra, Barcelona, Spain
| | - M Mar Albà
- Research Program on Biomedical Informatics, Hospital del Mar Medical Research Institute and Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Sarah Bonnin
- Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Julia Ponomarenko
- Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
| | - Roger R Gomis
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
- Cancer Science Program, Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain
| | - Juan Miguel Cejalvo
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain
- Medical Oncology Department, Hospital Clínico Universitario; Medicine Department, Universidad de Valencia, Spain, INCLIVA, Valencia, Spain
| | - Sonia Servitja
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain
- Medical Oncology Department, Hospital del Mar, Barcelona, Spain
| | - Diego M Marzese
- Fundació Institut d'Investigació Sanitària Illes Balears, Mallorca, Spain
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Miami, FL, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Leonie Voorwerk
- Division of Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Joaquín Arribas
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain
- Preclinical Research Program, Vall d'Hebron Institute of Oncology, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain
| | - Begoña Bermejo
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain
- Medical Oncology Department, Hospital Clínico Universitario; Medicine Department, Universidad de Valencia, Spain, INCLIVA, Valencia, Spain
| | - Marleen Kok
- Division of Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Lajos Pusztai
- Breast Medical Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
- Ludwig Institute for Cancer Research Princeton Branch, Princeton, NJ, USA
| | - Joan Albanell
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain.
- Universitat Pompeu Fabra, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain.
- Medical Oncology Department, Hospital del Mar, Barcelona, Spain.
| | - Toni Celià-Terrassa
- Cancer Research Program, Hospital del Mar Medical Research Institute, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Oncología, Madrid, Spain.
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11
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Gorlas A, Mariotte T, Morey L, Truong C, Bernard S, Guigner JM, Oberto J, Baudin F, Landrot G, Baya C, Le Pape P, Morin G, Forterre P, Guyot F. Precipitation of greigite and pyrite induced by Thermococcales: an advantage to live in Fe- and S-rich environments? Environ Microbiol 2022; 24:626-642. [PMID: 35102700 PMCID: PMC9306673 DOI: 10.1111/1462-2920.15915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 01/05/2022] [Accepted: 01/17/2022] [Indexed: 11/29/2022]
Abstract
Thermococcales, a major order of archaea inhabiting the iron- and sulfur-rich anaerobic parts of hydrothermal deep-sea vents, have been shown to rapidly produce abundant quantities of pyrite FeS2 in iron-sulfur-rich fluids at 85°C, suggesting that they may contribute to the formation of 'low temperature' FeS2 in their ecosystem. We show that this process operates in Thermococcus kodakarensis only when zero-valent sulfur is directly available as intracellular sulfur vesicles. Whether in the presence or absence of zero-valent sulfur, significant amounts of Fe3 S4 greigite nanocrystals are formed extracellularly. We also show that mineralization of iron sulfides induces massive cell mortality but that concomitantly with the formation of greigite and/or pyrite, a new generation of cells can grow. This phenomenon is observed for Fe concentrations of 5 mM but not higher suggesting that above a threshold in the iron pulse all cells are lysed. We hypothesize that iron sulfides precipitation on former cell materials might induce the release of nutrients in the mineralization medium further used by a fraction of surviving non-mineralized cells allowing production of new alive cells. This suggests that biologically induced mineralization of iron-sulfides could be part of a survival strategy employed by Thermococcales to cope with mineralizing high-temperature hydrothermal environments.
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Affiliation(s)
- A Gorlas
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - T Mariotte
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - L Morey
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - C Truong
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - S Bernard
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - J-M Guigner
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - J Oberto
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - F Baudin
- Institut des Sciences de la Terre de Paris, UMR 7193 - Sorbonne Université - CNRS, Paris, 75005, France
| | - G Landrot
- Synchrotron SOLEIL - SAMBA beamline, Saint-Aubin, 91190, France
| | - C Baya
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - P Le Pape
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - G Morin
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France
| | - P Forterre
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, 91198, France
| | - F Guyot
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 - CNRS, Sorbonne Université, Museum National d'Histoire Naturelle, Paris Cedex 05, 75252, France.,Institut Universitaire de France (IUF), Paris, France
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12
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Zhang Y, Liu T, Yuan F, Garcia-Martinez L, Lee KD, Stransky S, Sidoli S, Verdun RE, Zhang Y, Wang Z, Morey L. The Polycomb protein RING1B enables estrogen-mediated gene expression by promoting enhancer-promoter interaction and R-loop formation. Nucleic Acids Res 2021; 49:9768-9782. [PMID: 34428304 PMCID: PMC8464076 DOI: 10.1093/nar/gkab723] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/19/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022] Open
Abstract
Polycomb complexes have traditionally been prescribed roles as transcriptional repressors, though increasing evidence demonstrate they can also activate gene expression. However, the mechanisms underlying positive gene regulation mediated by Polycomb proteins are poorly understood. Here, we show that RING1B, a core component of Polycomb Repressive Complex 1, regulates enhancer-promoter interaction of the bona fide estrogen-activated GREB1 gene. Systematic characterization of RNA:DNA hybrid formation (R-loops), nascent transcription and RNA Pol II activity upon estrogen administration revealed a key role of RING1B in gene activation by regulating R-loop formation and RNA Pol II elongation. We also found that the estrogen receptor alpha (ERα) and RNA are both necessary for full RING1B recruitment to estrogen-activated genes. Notably, RING1B recruitment was mostly unaffected upon RNA Pol II depletion. Our findings delineate the functional interplay between RING1B, RNA and ERα to safeguard chromatin architecture perturbations required for estrogen-mediated gene regulation and highlight the crosstalk between steroid hormones and Polycomb proteins to regulate oncogenic programs.
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Affiliation(s)
- Yusheng Zhang
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Tong Liu
- Department of Computer Science, University of Miami, 1365 Memorial Drive, P.O. Box 248154, Coral Gables, FL 33124, USA
| | - Fenghua Yuan
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Liliana Garcia-Martinez
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Kyutae D Lee
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Stephanie Stransky
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ramiro E Verdun
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Yanbin Zhang
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Zheng Wang
- Department of Computer Science, University of Miami, 1365 Memorial Drive, P.O. Box 248154, Coral Gables, FL 33124, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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13
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Hassen AI, Khambani LS, Swanevelder ZH, Mtsweni NP, Bopape FL, van Vuuren A, van der Linde EJ, Morey L. Elucidating key plant growth-promoting (PGPR) traits in Burkholderia sp. Nafp2/4-1b (=SARCC-3049) using gnotobiotic assays and whole-genome-sequence analysis. Lett Appl Microbiol 2021; 73:658-671. [PMID: 34426983 DOI: 10.1111/lam.13556] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/29/2021] [Indexed: 12/01/2022]
Abstract
Burkholderia sp. Nafp2/4-1b (=SARCC-3049) is a plant growth-promoting rhizobacteria (PGPR) initially isolated from the rhizosphere of pristine grassland in South Africa, and its ability to enhance growth was previously evaluated on maize (Zea mays L.). Here, the bacterium was tested with the aim of investigating its role in improving the nodulation and growth of the forage legume lucerne (Medicago sativa L.) when it is co-inoculated with the rhizobial symbionts of this legume in the glasshouse. When the co-inoculation resulted in a statistically significant (P = 0·05) increase in the number of nodules and improved plant biomass compared with single inoculation, we sequenced and analysed its genome to gain a better understanding of the genetic determinants responsible for the observed PGPR traits. The Illumina HiSeq 2500-sequenced genome resulted in 92 scaffolds, with an N50 of 322 407 bp, a total draft genome size of 7 788 045 bp and GC content of 66·2%. Analysis of the genome sequence confirmed the presence of a number of essential genes that code for various PGPR traits. The main plant beneficial genes associated with PGPR traits in Burkholderia sp. Nafp2/4-1b include pyoverdine siderophores biosynthesis gene (PvdF); acdS that codes for 1-aminocyclopropane-1-carboxylate (ACC) deaminase; the tryptophan synthase genes involved in auxin biosynthesis (TSA1, TSB1) and the pqqABCDE operon related to phosphate solubilization. This study generated valuable information on the potential of the PGPR Burkholderia sp. strain Nafp2/4-1b as an effective commercial inoculant, which warrants further formulation and field application studies before developing it into a low cost, environmentally safe and effective biofertilizer.
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Affiliation(s)
- A I Hassen
- Agricultural Research Council, Plant Health and Protection, Pretoria, Queenswood, South Africa
| | - L S Khambani
- School of Molecular and Cell Biology, University of the Witwatersrand, Johannesburg, South Africa
| | - Z H Swanevelder
- Agricultural Research Council, Biotechnology Platform, Onderstepoort, South Africa
| | - N P Mtsweni
- Agricultural Research Council, Plant Health and Protection, Pretoria, Queenswood, South Africa
| | - F L Bopape
- Agricultural Research Council, Plant Health and Protection, Pretoria, Queenswood, South Africa
| | - A van Vuuren
- Agricultural Research Council, Plant Health and Protection, Pretoria, Queenswood, South Africa
| | - E J van der Linde
- Agricultural Research Council, Plant Health and Protection, Pretoria, Queenswood, South Africa
| | - L Morey
- ARC-Biometry, Central Office, Pretoria, South Africa
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14
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Tayari MM, Santos HGD, Kwon D, Bradley TJ, Thomassen A, Chen C, Dinh Y, Perez A, Zelent A, Morey L, Cimmino L, Shiekhattar R, Swords RT, Watts JM. Clinical Responsiveness to All-trans Retinoic Acid Is Potentiated by LSD1 Inhibition and Associated with a Quiescent Transcriptome in Myeloid Malignancies. Clin Cancer Res 2021; 27:1893-1903. [PMID: 33495312 DOI: 10.1158/1078-0432.ccr-20-4054] [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: 10/14/2020] [Revised: 12/07/2020] [Accepted: 01/15/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE In preclinical studies, the lysine-specific histone demethylase 1A (LSD1) inhibitor tranylcypromine (TCP) combined with all-trans retinoic acid (ATRA) induces differentiation and impairs survival of myeloid blasts in non-acute promyelocytic leukemia acute myeloid leukemia (AML). We conducted a phase I clinical trial (NCT02273102) to evaluate the safety and activity of ATRA plus TCP in patients with relapsed/refractory AML and myelodysplasia (MDS). PATIENTS AND METHODS Seventeen patients were treated with ATRA and TCP (three dose levels: 10 mg twice daily, 20 mg twice daily, and 30 mg twice daily). RESULTS ATRA-TCP had an acceptable safety profile. The MTD of TCP was 20 mg twice daily. Best responses included one morphologic leukemia-free state, one marrow complete remission with hematologic improvement, two stable disease with hematologic improvement, and two stable disease. By intention to treat, the overall response rate was 23.5% and clinical benefit rate was 35.3%. Gene expression profiling of patient blasts showed that responding patients had a more quiescent CD34+ cell phenotype at baseline, including decreased MYC and RARA expression, compared with nonresponders that exhibited a more proliferative CD34+ phenotype, with gene expression enrichment for cell growth signaling. Upon ATRA-TCP treatment, we observed significant induction of retinoic acid-target genes in responders but not nonresponders. We corroborated this in AML cell lines, showing that ATRA-TCP synergistically increased differentiation capacity and cell death by regulating the expression of key gene sets that segregate patients by their clinical response. CONCLUSIONS These data indicate that LSD1 inhibition sensitizes AML cells to ATRA and may restore ATRA responsiveness in subsets of patients with MDS and AML.
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Affiliation(s)
- Mina M Tayari
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida
| | - Helena G Dos Santos
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida
| | - Deukwoo Kwon
- Sylvester Comprehensive Cancer Center, Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida
| | - Terrence J Bradley
- Sylvester Comprehensive Cancer Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Amber Thomassen
- Sylvester Comprehensive Cancer Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Charles Chen
- Sylvester Comprehensive Cancer Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Yvonne Dinh
- Department of Immuno-Oncology, Oncology Division, IQVIA Biotech, Miami, Florida
| | - Aymee Perez
- Sylvester Comprehensive Cancer Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Arthur Zelent
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology PAS, Warsaw, Poland
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida
| | - Luisa Cimmino
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida
| | - Ramin Shiekhattar
- Sylvester Comprehensive Cancer Center, Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida
| | - Ronan T Swords
- Medical Director, AbbVie Pharmaceuticals, Chicago, Illinois
| | - Justin M Watts
- Sylvester Comprehensive Cancer Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida.
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15
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Zhang Y, Chan HL, Garcia-Martinez L, Karl DL, Weich N, Slingerland JM, Verdun RE, Morey L. Estrogen induces dynamic ERα and RING1B recruitment to control gene and enhancer activities in luminal breast cancer. Sci Adv 2020; 6:eaaz7249. [PMID: 32548262 PMCID: PMC7274770 DOI: 10.1126/sciadv.aaz7249] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 04/02/2020] [Indexed: 05/04/2023]
Abstract
RING1B, a core Polycomb repressive complex 1 subunit, is a histone H2A ubiquitin ligase essential for development. RING1B is overexpressed in patients with luminal breast cancer (BC) and recruited to actively transcribed genes and enhancers co-occupied by the estrogen receptor α (ERα). Whether ERα-induced transcriptional programs are mediated by RING1B is not understood. We show that prolonged estrogen administration induces transcriptional output and chromatin landscape fluctuations. RING1B loss impairs full estrogen-mediated gene expression and chromatin accessibility for key BC transcription factors. These effects were mediated, in part, by RING1B enzymatic activity and nucleosome binding functions. RING1B is recruited in a cyclic manner to ERα, FOXA1, and GRHL2 cobound sites and regulates estrogen-induced enhancers and ERα recruitment. Last, ChIP exo revealed multiple binding events of these factors at single-nucleotide resolution, including RING1B occupancy approximately 10 base pairs around ERα bound sites. We propose RING1B as a key regulator of the dynamic, liganded-ERα transcriptional regulatory circuit in luminal BC.
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Affiliation(s)
- Yusheng Zhang
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Ho Lam Chan
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Liliana Garcia-Martinez
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Daniel L. Karl
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Natalia Weich
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Joyce M. Slingerland
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Braman Family Breast Cancer Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ramiro E. Verdun
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
- Department of Human Genetics, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Corresponding author.
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16
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Grobler S, Scholtz M, Neser F, Greyling J, Morey L. Effect of controlled breeding on performance of beef cattle in Central Bushveld bioregion. S AFR J ANIM SCI 2020. [DOI: 10.4314/sajas.v49i6.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In most extensive beef production systems in South Africa, calves are weaned at specific dates. This implies that cows that calve late in the season wean younger and lighter calves. In the current study, Bonsmara cows were mated naturally after synchronization over six years (2009 - 2014) in an extensive production system on natural veld in the Central Bushveld bioregion. Within the herd, 50% of cows were synchronized prior to the commencement of the summer breeding season and they were mated naturally for 90 days. The results indicated that calving rate did not differ significantly between cows that were synchronized and non- synchronized. However, there was a significant difference between years in calving rate. Oestrous synchronization prior to natural breeding influenced the average days to conception. The difference in percentage of cows that calved within 293 days of the onset of the breeding season between those that were oestrous synchronized and non-synchronized was 15% in favour of the synchronized cows. Although calves from synchronized cows achieved higher average weaning weights, the cost implications of synchronization offset the benefit of higher calf weights.
Keywords: calving rate, oestrous synchronization, natural breeding
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17
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Chiacchiera F, Morey L, Mozzetta C. Editorial: Epigenetic Regulation of Stem Cell Plasticity in Tissue Regeneration and Disease. Front Cell Dev Biol 2020; 8:82. [PMID: 32140466 PMCID: PMC7042459 DOI: 10.3389/fcell.2020.00082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/29/2020] [Indexed: 12/25/2022] Open
Affiliation(s)
- Fulvio Chiacchiera
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Miami, FL, United States.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Chiara Mozzetta
- CNR -Institute of Molecular Biology and Pathology, c/o Department of Biology and Biotechnology "C. Darwin", Sapienza University, Rome, Italy
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18
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Chan HL, Morey L. Emerging Roles for Polycomb-Group Proteins in Stem Cells and Cancer. Trends Biochem Sci 2019; 44:688-700. [PMID: 31085088 DOI: 10.1016/j.tibs.2019.04.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/04/2019] [Accepted: 04/09/2019] [Indexed: 02/07/2023]
Abstract
Polycomb-group (PcG) complexes are multiprotein, evolutionarily conserved epigenetic machineries that regulate stem cell fate decisions and development, and are also implicated in cancer and other maladies. The PcG machinery can be divided into two major complexes: Polycomb repressive complex 1 and 2 (PRC1 and PRC2). Traditionally, PcG complexes have been associated with maintenance of gene repression mainly via histone-modifying activities. However, during the last years, increasing evidence indicates that the PcG complexes can also positively regulate gene transcription and modify non-histone substrates in multiple biological processes, cellular stages, and cancers. In this review, we will illustrate recent findings in PcG-mediated gene regulation, with special focus on the recently described non-classical functions of PcG complexes in stem cells and cancer.
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Affiliation(s)
- Ho Lam Chan
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA; Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL 33136, USA; Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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19
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Chan HL, Beckedorff F, Zhang Y, Garcia-Huidobro J, Jiang H, Colaprico A, Bilbao D, Figueroa ME, LaCava J, Shiekhattar R, Morey L. Polycomb complexes associate with enhancers and promote oncogenic transcriptional programs in cancer through multiple mechanisms. Nat Commun 2018; 9:3377. [PMID: 30139998 PMCID: PMC6107513 DOI: 10.1038/s41467-018-05728-x] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 07/25/2018] [Indexed: 12/16/2022] Open
Abstract
Polycomb repressive complex 1 (PRC1) plays essential roles in cell fate decisions and development. However, its role in cancer is less well understood. Here, we show that RNF2, encoding RING1B, and canonical PRC1 (cPRC1) genes are overexpressed in breast cancer. We find that cPRC1 complexes functionally associate with ERα and its pioneer factor FOXA1 in ER+ breast cancer cells, and with BRD4 in triple-negative breast cancer cells (TNBC). While cPRC1 still exerts its repressive function, it is also recruited to oncogenic active enhancers. RING1B regulates enhancer activity and gene transcription not only by promoting the expression of oncogenes but also by regulating chromatin accessibility. Functionally, RING1B plays a divergent role in ER+ and TNBC metastasis. Finally, we show that concomitant recruitment of RING1B to active enhancers occurs across multiple cancers, highlighting an under-explored function of cPRC1 in regulating oncogenic transcriptional programs in cancer. The role of Polycomb Repressive Complex 1 (PRC1) is well described in development. Here, the authors investigate canonical PRC1’s regulation of transcriptional programs in breast cancer where, in addition to its repressive function, it is also recruited to oncogenic active enhancers to regulate enhancer activity and chromatin accessibility.
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Affiliation(s)
- Ho Lam Chan
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Felipe Beckedorff
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Yusheng Zhang
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Jenaro Garcia-Huidobro
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.,Centro de Investigaciones Médicas (CIM), Núcleo Científico Multidisciplinario, Escuela de Medicina, Universidad de Talca, Avenida Lircay S/N, Talca, 3460000, Chile
| | - Hua Jiang
- Laboratory of Cellular and Structural Biology, The Rockefeller University, New York, NY, 10065, USA
| | - Antonio Colaprico
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Daniel Bilbao
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA
| | - Maria E Figueroa
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - John LaCava
- Laboratory of Cellular and Structural Biology, The Rockefeller University, New York, NY, 10065, USA.,Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
| | - Ramin Shiekhattar
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Biomedical Research Building, 1501 NW 10th Avenue, Miami, FL, 33136, USA. .,Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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20
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du Toit CJL, van Niekerk WA, Meissner HH, Erasmus LJ, Morey L. Nutrient composition and in vitro methane production of sub-tropical grass species in transitional rangeland of South Africa. Rangel J 2018. [DOI: 10.1071/rj17057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The development of greenhouse gas mitigation strategies has become an important issue globally. Enteric methane (CH4) emissions from livestock do not only contribute substantially to the environmental footprint of livestock production but it also represents a loss of energy that could be channelled towards animal growth and production. In this study 14 sub-tropical grass species typical of transitional rangeland regions of South Africa were characterised in terms of ecological status, chemical composition, in vitro total gas and CH4 production. The aim of the study was 2-fold: to identify grass species that could be selected for low enteric CH4 production; evaluate the influence of rangeland ecological status on the methanogenic potential of a rangeland. Grass samples were collected by hand, air-dried, milled and analysed for nutrient composition, in vitro organic matter digestibility (IVOMD) and in vitro gas and CH4 production. Cenchrus ciliaris and Urelytrum agropyriodes produced the highest 48-h in vitro CH4 of 17.49 and 14.05 mL/g DM digested respectively. The lowest 48-h in vitro CH4 was produced by Andropogan gayanus and Bothriochloa bladhii with 5.98 and 6.08 mL/g DM digested respectively. The evaluated grass species were overall of poor quality with low CP concentrations ranging from 2.4% for Trachypogon spicatus to 6.7% for Digitaria eriantha and IVOMD ranging from 22.5% for Andropogon gayanus to 42.2% for Urelytrum agropyriodes. Decreaser grass species presented with higher in vitro CH4 production compared with Increaser I and Increaser II grass species in the present study. The results of the study emphasise the importance of including the nutritional potential of grass species for improved livestock production when evaluating grass species for possible greenhouse gas mitigation strategies.
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21
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Li J, He F, Zhang P, Chen S, Shi H, Sun Y, Guo Y, Yang H, Man N, Greenblatt S, Li Z, Guo Z, Zhou Y, Wang L, Morey L, Williams S, Chen X, Wang QT, Nimer SD, Yu P, Wang QF, Xu M, Yang FC. Loss of Asxl2 leads to myeloid malignancies in mice. Nat Commun 2017; 8:15456. [PMID: 28593990 PMCID: PMC5472177 DOI: 10.1038/ncomms15456] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 03/30/2017] [Indexed: 11/28/2022] Open
Abstract
ASXL2 is frequently mutated in acute myeloid leukaemia patients with t(8;21). However, the roles of ASXL2 in normal haematopoiesis and the pathogenesis of myeloid malignancies remain unknown. Here we show that deletion of Asxl2 in mice leads to the development of myelodysplastic syndrome (MDS)-like disease. Asxl2−/− mice have an increased bone marrow (BM) long-term haematopoietic stem cells (HSCs) and granulocyte–macrophage progenitors compared with wild-type controls. Recipients transplanted with Asxl2−/− and Asxl2+/− BM cells have shortened lifespan due to the development of MDS-like disease or myeloid leukaemia. Paired daughter cell assays demonstrate that Asxl2 loss enhances the self-renewal of HSCs. Deletion of Asxl2 alters the expression of genes critical for HSC self-renewal, differentiation and apoptosis in Lin−cKit+ cells. The altered gene expression is associated with dysregulated H3K27ac and H3K4me1/2. Our study demonstrates that ASXL2 functions as a tumour suppressor to maintain normal HSC function. ASXL2 mutations are mostly found in a subset of leukemia patients with certain genetic aberrations; however the role of this protein in normal hematopoiesis and related malignancies is still unclear. Here the authors use a knock-out mouse model to uncover the role of Asxl2 in hematopoiesis and leukemogenesis.
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Affiliation(s)
- Jianping Li
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Fuhong He
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Peng Zhang
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Shi Chen
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Hui Shi
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA.,State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Yanling Sun
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Guo
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Hui Yang
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Na Man
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Sarah Greenblatt
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Zhaomin Li
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Zhengyu Guo
- Department of Electrical and Computer Engineering, and TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Yuan Zhou
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Lan Wang
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Sion Williams
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Xi Chen
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA.,Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Qun-Tian Wang
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Stephen D Nimer
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Peng Yu
- Department of Electrical and Computer Engineering, and TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Qian-Fei Wang
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingjiang Xu
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
| | - Feng-Chun Yang
- Sylvester Comprehensive Cancer Center, Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, 1011 NW 15th Street, Room 417, Miami, Florida 33136, USA
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22
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Stevens TJ, Lando D, Basu S, Atkinson LP, Cao Y, Lee SF, Leeb M, Wohlfahrt KJ, Boucher W, O'Shaughnessy-Kirwan A, Cramard J, Faure AJ, Ralser M, Blanco E, Morey L, Sansó M, Palayret MGS, Lehner B, Di Croce L, Wutz A, Hendrich B, Klenerman D, Laue ED. 3D structures of individual mammalian genomes studied by single-cell Hi-C. Nature 2017; 544:59-64. [PMID: 28289288 PMCID: PMC5385134 DOI: 10.1038/nature21429] [Citation(s) in RCA: 505] [Impact Index Per Article: 72.1] [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: 03/18/2016] [Accepted: 01/26/2017] [Indexed: 12/19/2022]
Abstract
The folding of genomic DNA from the beads-on-a-string-like structure of nucleosomes into higher-order assemblies is crucially linked to nuclear processes. Here we calculate 3D structures of entire mammalian genomes using data from a new chromosome conformation capture procedure that allows us to first image and then process single cells. The technique enables genome folding to be examined at a scale of less than 100 kb, and chromosome structures to be validated. The structures of individual topological-associated domains and loops vary substantially from cell to cell. By contrast, A and B compartments, lamina-associated domains and active enhancers and promoters are organized in a consistent way on a genome-wide basis in every cell, suggesting that they could drive chromosome and genome folding. By studying genes regulated by pluripotency factor and nucleosome remodelling deacetylase (NuRD), we illustrate how the determination of single-cell genome structure provides a new approach for investigating biological processes.
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Affiliation(s)
- Tim J Stevens
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, United Kingdom
| | - David Lando
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Srinjan Basu
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Liam P Atkinson
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Yang Cao
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Steven F Lee
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Martin Leeb
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Kai J Wohlfahrt
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Wayne Boucher
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Aoife O'Shaughnessy-Kirwan
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Julie Cramard
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Andre J Faure
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
| | - Meryem Ralser
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Enrique Blanco
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
| | - Lluis Morey
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
| | - Miriam Sansó
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
| | - Matthieu G S Palayret
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Ben Lehner
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
- Universitat Pompeu Fabra, 08003 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Luciano Di Croce
- EMBL-CRG Systems Biology Unit, Centre for Genomic Regulation (CRG), 08003 Barcelona, Spain
- Universitat Pompeu Fabra, 08003 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Anton Wutz
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Brian Hendrich
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
- Wellcome Trust - MRC Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, United Kingdom
| | - Dave Klenerman
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Ernest D Laue
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
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23
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Herranz N, Dave N, Millanes-Romero A, Pascual-Reguant L, Morey L, Díaz VM, Lórenz-Fonfría V, Gutierrez-Gallego R, Jerónimo C, Iturbide A, Di Croce L, García de Herreros A, Peiró S. Lysyl oxidase-like 2 (LOXL2) oxidizes trimethylated lysine 4 in histone H3. FEBS J 2016; 283:4263-4273. [PMID: 27735137 DOI: 10.1111/febs.13922] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/10/2016] [Indexed: 12/15/2022]
Abstract
Methylation of histone H3 lysine 4 is linked to active transcription and can be removed by LSD1 or the JmjC domain-containing proteins by amino-oxidation or hydroxylation, respectively. Here we describe that its deamination can be catalyzed by lysyl oxidase-like 2 protein (LOXL2), presenting an unconventional chemical mechanism for H3K4 modification. Infrared spectroscopy and mass spectrometry analyses demonstrated that recombinant LOXL2 specifically deaminates trimethylated H3K4. Moreover, by regulating H3K4me3 deamination, LOXL2 activity is linked with the transcriptional control of the CDH1 gene. These results reveal the existence of further H3 modification as well as a novel mechanism for H3K4me3 demethylation. DATABASE The GEO accession number for the data referred to this paper is GSE35600.
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Affiliation(s)
- Nicolás Herranz
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Natàlia Dave
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Alba Millanes-Romero
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Laura Pascual-Reguant
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Lluis Morey
- Centre de Regulació Genòmica (CRG), Barcelona, Spain
| | - Víctor M Díaz
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Víctor Lórenz-Fonfría
- Unitat de Biofísica, Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | | | - Ane Iturbide
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Luciano Di Croce
- Centre de Regulació Genòmica (CRG), Barcelona, Spain.,Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Antonio García de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Sandra Peiró
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
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24
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Rinaldi L, Datta D, Serrat J, Morey L, Solanas G, Avgustinova A, Blanco E, Pons JI, Matallanas D, Von Kriegsheim A, Di Croce L, Benitah SA. Dnmt3a and Dnmt3b Associate with Enhancers to Regulate Human Epidermal Stem Cell Homeostasis. Cell Stem Cell 2016; 19:491-501. [PMID: 27476967 DOI: 10.1016/j.stem.2016.06.020] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [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: 11/05/2015] [Revised: 04/25/2016] [Accepted: 06/29/2016] [Indexed: 12/22/2022]
Abstract
The genome-wide localization and function of endogenous Dnmt3a and Dnmt3b in adult stem cells are unknown. Here, we show that in human epidermal stem cells, the two proteins bind in a histone H3K36me3-dependent manner to the most active enhancers and are required to produce their associated enhancer RNAs. Both proteins prefer super-enhancers associated to genes that either define the ectodermal lineage or establish the stem cell and differentiated states. However, Dnmt3a and Dnmt3b differ in their mechanisms of enhancer regulation: Dnmt3a associates with p63 to maintain high levels of DNA hydroxymethylation at the center of enhancers in a Tet2-dependent manner, whereas Dnmt3b promotes DNA methylation along the body of the enhancer. Depletion of either protein inactivates their target enhancers and profoundly affects epidermal stem cell function. Altogether, we reveal novel functions for Dnmt3a and Dnmt3b at enhancers that could contribute to their roles in disease and tumorigenesis.
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Affiliation(s)
- Lorenzo Rinaldi
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain; Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Doctor Aiguader 88, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), Doctor Aiguader 88, 08003 Barcelona, Spain.
| | - Debayan Datta
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Judit Serrat
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Lluis Morey
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Guiomar Solanas
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Alexandra Avgustinova
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Enrique Blanco
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Doctor Aiguader 88, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), Doctor Aiguader 88, 08003 Barcelona, Spain
| | - José Ignacio Pons
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - David Matallanas
- Systems Biology Ireland, University College Dublin, Belfield, Dublin 4, Ireland
| | - Alex Von Kriegsheim
- Systems Biology Ireland, University College Dublin, Belfield, Dublin 4, Ireland
| | - Luciano Di Croce
- ICREA, Passeig de Lluís Companys 23, 08010 Barcelona, Spain; Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Doctor Aiguader 88, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), Doctor Aiguader 88, 08003 Barcelona, Spain.
| | - Salvador Aznar Benitah
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain; ICREA, Passeig de Lluís Companys 23, 08010 Barcelona, Spain.
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25
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Morey L. Polycomb meets mediator to balance pluripotency and differentiation. Cell Cycle 2016; 15:1807-8. [PMID: 27152643 DOI: 10.1080/15384101.2016.1184511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Lluis Morey
- a University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Department of Human Genetics, Biomedical Research Building , Miami , FL , USA
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26
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Venter GJ, Boikanyo SNB, Majatladi DM, Morey L. Influence of carbon dioxide on numbers of Culicoides midges collected with suction light traps in South Africa. Med Vet Entomol 2016; 30:117-122. [PMID: 26522279 DOI: 10.1111/mve.12146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/14/2015] [Accepted: 07/11/2015] [Indexed: 06/05/2023]
Abstract
To implement risk management against diseases transmitted by species of Culicoides Latreille, 1809 (Diptera: Ceratopogonidae), it is essential to identify all potential vectors. Light traps are the most commonly used tool for the collection of Culicoides midges. Given the indiscriminate artificial attraction of light, traps will collect all night-flying insects rather than only livestock-associated Culicoides midges. Factors that may increase the efficacy of traps, especially for livestock-associated Culicoides midges, require investigation. In the present study, results obtained with Centers for Disease Control (CDC) and Onderstepoort light traps baited with carbon dioxide (CO2 ) were compared with those of unbaited controls. Comparisons were made using two replicates of a 4 × 4 randomized Latin square design. With both trap types, the mean numbers of Culicoides midges collected in 16 baited traps were higher than those caught in 16 unbaited traps. Although exceptionally low numbers were collected with the CDC traps, the increases in the numbers and frequency of collection of Culicoides imicola Kieffer, 1913 were more pronounced in the CDC traps compared with the Onderstepoort traps. These results indicate that the addition of CO2 may increase the efficiency of these traps for the collection of C. imicola and other livestock-associated Culicoides species.
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Affiliation(s)
- G J Venter
- Parasites, Vectors and Vector Borne Diseases, Agricultural Research Council (ARC)-Onderstepoort Veterinary Institute, Pretoria, South Africa
- Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa
| | - S N B Boikanyo
- Parasites, Vectors and Vector Borne Diseases, Agricultural Research Council (ARC)-Onderstepoort Veterinary Institute, Pretoria, South Africa
| | - D M Majatladi
- Parasites, Vectors and Vector Borne Diseases, Agricultural Research Council (ARC)-Onderstepoort Veterinary Institute, Pretoria, South Africa
| | - L Morey
- Biometry Unit, ARC, Pretoria, South Africa
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27
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Vilas JM, Ferreirós A, Carneiro C, Morey L, Da Silva-Álvarez S, Fernandes T, Abad M, Di Croce L, García-Caballero T, Serrano M, Rivas C, Vidal A, Collado M. Transcriptional regulation of Sox2 by the retinoblastoma family of pocket proteins. Oncotarget 2015; 6:2992-3002. [PMID: 25576924 PMCID: PMC4413632 DOI: 10.18632/oncotarget.2996] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 12/14/2014] [Indexed: 11/25/2022] Open
Abstract
Cellular reprogramming to iPSCs has uncovered unsuspected links between tumor suppressors and pluripotency factors. Using this system, it was possible to identify tumor suppressor p27 as a repressor of Sox2 during differentiation. This led to the demonstration that defects in the repression of Sox2 can contribute to tumor development. The members of the retinoblastoma family of pocket proteins, pRb, p107 and p130, are negative regulators of the cell cycle with tumor suppressor activity and with roles in differentiation. In this work we studied the relative contribution of the retinoblastoma family members to the regulation of Sox2 expression. We found that deletion of Rb or p130 leads to impaired repression of Sox2, a deffect amplified by inactivation of p53. We also identified binding of pRb and p130 to an enhancer with crucial regulatory activity on Sox2 expression. Using cellular reprogramming we tested the impact of the defective repression of Sox2 and confirmed that Rb deficiency allows the generation of iPSCs in the absence of exogenous Sox2. Finally, partial depletion of Sox2 positive cells reduced the pituitary tumor development initiated by Rb loss in vivo. In summary, our results show that Sox2 repression by pRb is a relevant mechanism of tumor suppression.
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Affiliation(s)
- Jéssica M Vilas
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, E15706 Santiago de Compostela, Spain
| | - Alba Ferreirós
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, E15706 Santiago de Compostela, Spain
| | - Carmen Carneiro
- Departamento de Fisioloxía and Centro de Investigación en Medicina Molecular (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias de Santiago de Compostela (IDIS), E15782 Santiago de Compostela, Spain
| | - Lluis Morey
- Centre for Genomic Regulation and UPF, E08003 Barcelona, Spain
| | - Sabela Da Silva-Álvarez
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, E15706 Santiago de Compostela, Spain
| | - Tânia Fernandes
- Departamento de Fisioloxía and Centro de Investigación en Medicina Molecular (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias de Santiago de Compostela (IDIS), E15782 Santiago de Compostela, Spain
| | - María Abad
- Tumor Suppression Group, Spanish National Cancer Research Centre (CNIO), E28029 Madrid, Spain
| | - Luciano Di Croce
- Centre for Genomic Regulation and UPF, E08003 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), E08010 Barcelona, Spain
| | - Tomás García-Caballero
- Departamento de Ciencias Morfológicas, Facultad de Medicina. USC. Complejo Hospitalario de Santiago (CHUS), SERGAS, E15706, Santiago de Compostela, Spain
| | - Manuel Serrano
- Tumor Suppression Group, Spanish National Cancer Research Centre (CNIO), E28029 Madrid, Spain
| | - Carmen Rivas
- Departamento de Biología Molecular y Celular, Centro Nacional de Biotecnología-CSIC, E28049 Madrid, Spain.,Centro de Investigación en Medicina Molecular (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias de Santiago de Compostela (IDIS), E15706 Santiago de Compostela, Spain
| | - Anxo Vidal
- Departamento de Fisioloxía and Centro de Investigación en Medicina Molecular (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias de Santiago de Compostela (IDIS), E15782 Santiago de Compostela, Spain
| | - Manuel Collado
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, E15706 Santiago de Compostela, Spain
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28
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Morey L, Santanach A, Blanco E, Aloia L, Nora E, Bruneau B, Di Croce L. Polycomb Regulates Mesoderm Cell Fate-Specification in Embryonic Stem Cells through Activation and Repression Mechanisms. Cell Stem Cell 2015; 17:300-15. [DOI: 10.1016/j.stem.2015.08.009] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/15/2015] [Accepted: 08/11/2015] [Indexed: 10/23/2022]
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29
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Aloia L, Di Stefano B, Sessa A, Morey L, Santanach A, Gutierrez A, Cozzuto L, Benitah SA, Graf T, Broccoli V, Di Croce L. Zrf1 is required to establish and maintain neural progenitor identity. Genes Dev 2014; 28:182-97. [PMID: 24449271 PMCID: PMC3909791 DOI: 10.1101/gad.228510.113] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The molecular mechanisms underlying specification from embryonic stem cells (ESCs) and maintenance of neural progenitor cells (NPCs) are largely unknown. Recently, we reported that the Zuotin-related factor 1 (Zrf1) is necessary for chromatin displacement of the Polycomb-repressive complex 1 (PRC1). We found that Zrf1 is required for NPC specification from ESCs and that it promotes the expression of NPC markers, including the key regulator Pax6. Moreover, Zrf1 is essential to establish and maintain Wnt ligand expression levels, which are necessary for NPC self-renewal. Reactivation of proper Wnt signaling in Zrf1-depleted NPCs restores Pax6 expression and the self-renewal capacity. ESC-derived NPCs in vitro resemble most of the characteristics of the self-renewing NPCs located in the developing embryonic cortex, which are termed radial glial cells (RGCs). Depletion of Zrf1 in vivo impairs the expression of key self-renewal regulators and Wnt ligand genes in RGCs. Thus, we demonstrate that Zrf1 plays an essential role in NPC generation and maintenance.
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Affiliation(s)
- Luigi Aloia
- Centre for Genomic Regulation (CRG), Universitat Pompeu Fabra, 08003 Barcelona, Spain
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30
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Morey L, Aloia L, Cozzuto L, Benitah SA, Di Croce L. RYBP and Cbx7 define specific biological functions of polycomb complexes in mouse embryonic stem cells. Cell Rep 2012; 3:60-9. [PMID: 23273917 DOI: 10.1016/j.celrep.2012.11.026] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 11/05/2012] [Accepted: 11/28/2012] [Indexed: 11/27/2022] Open
Abstract
The Polycomb repressive complex 1 (PRC1) is required for decisions of stem cell fate. In mouse embryonic stem cells (ESCs), two major variations of PRC1 complex, defined by the mutually exclusive presence of Cbx7 or RYBP, have been identified. Here, we show that although the genomic localization of the Cbx7- and RYBP-containing PRC1 complexes overlaps in certain genes, it can also be mutually exclusive. At the molecular level, Cbx7 is necessary for recruitment of Ring1B to chromatin, whereas RYBP enhances the PRC1 enzymatic activity. Genes occupied by RYBP show lower levels of Ring1B and H2AK119ub and are consequently more highly transcribed than those bound by Cbx7. At the functional level, we show that genes occupied by RYBP are primarily involved in the regulation of metabolism and cell-cycle progression, whereas those bound by Cbx7 predominantly control early-lineage commitment of ESCs. Altogether, our results indicate that different PRC1 subtypes establish a complex pattern of gene regulation that regulates common and nonoverlapping aspects of ESC pluripotency and differentiation.
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Affiliation(s)
- Lluis Morey
- Centre for Genomic Regulation and UPF, Dr. Aiguader 88, 08003 Barcelona, Spain.
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31
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Ballaré C, Lange M, Lapinaite A, Martin GM, Morey L, Pascual G, Liefke R, Simon B, Shi Y, Gozani O, Carlomagno T, Benitah SA, Di Croce L. Phf19 links methylated Lys36 of histone H3 to regulation of Polycomb activity. Nat Struct Mol Biol 2012; 19:1257-65. [PMID: 23104054 DOI: 10.1038/nsmb.2434] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 10/03/2012] [Indexed: 12/12/2022]
Abstract
Polycomb-group proteins are transcriptional repressors with essential roles in embryonic development. Polycomb repressive complex 2 (PRC2) contains the methyltransferase activity for Lys27. However, the role of other histone modifications in regulating PRC2 activity is just beginning to be understood. Here we show that direct recognition of methylated histone H3 Lys36 (H3K36me), a mark associated with activation, by the PRC2 subunit Phf19 is required for the full enzymatic activity of the PRC2 complex. Using NMR spectroscopy, we provide structural evidence for this interaction. Furthermore, we show that Phf19 binds to a subset of PRC2 targets in mouse embryonic stem cells and that this is required for their repression and for H3K27me3 deposition. These findings show that the interaction of Phf19 with H3K36me2 and H3K36me3 is essential for PRC2 complex activity and for proper regulation of gene repression in embryonic stem cells.
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Affiliation(s)
- Cecilia Ballaré
- Department of Gene Regulation and Stem Cells, Centre for Genomic Regulation (CRG), Barcelona, Spain
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32
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Venter GJ, Majatladi DM, Labuschagne K, Boikanyo SNB, Morey L. The attraction range of the Onderstepoort 220V light trap for Culicoides biting midges as determined under South African field conditions. Vet Parasitol 2012; 190:222-9. [PMID: 22704896 DOI: 10.1016/j.vetpar.2012.05.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 05/16/2012] [Accepted: 05/18/2012] [Indexed: 10/28/2022]
Abstract
Despite some limitations suction light traps are the primary tools used for the collection of Culicoides species (Diptera: Ceratopogonidae). The range of attraction of the Onderstepoort light trap is not known but an insight into the range of a trap will determine where the trap must be positioned relative to the hosts present, possible breeding sites and environmental structures in the trapping vicinity. It will therefore contribute to a more meaningful interpretation and comparison of results between trapping events. In the present study the number of Culicoides midges collected in a single trap was compared to those of traps made with an additional trap respectively 1m, 4m and 8.5m away from the first. Treatments between sites were rotated in three replicates of a 4×4 Latin square design. While interactions were found in traps 4m apart no statistically significant interactions were found when they were 8.5m apart. The range of attraction, indicated by the interaction between two traps, will be between 2m and 4m. In interpreting light trap results the limitations of this collection method needs to be taken into consideration.
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Affiliation(s)
- G J Venter
- ARC-Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort, 0110, South Africa.
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Herranz N, Dave N, Millanes-Romero A, Morey L, Díaz VM, Lórenz-Fonfría V, Gutierrez-Gallego R, Jerónimo C, Di Croce L, García de Herreros A, Peiró S. Lysyl oxidase-like 2 deaminates lysine 4 in histone H3. Mol Cell 2012; 46:369-76. [PMID: 22483618 DOI: 10.1016/j.molcel.2012.03.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 12/12/2011] [Accepted: 02/28/2012] [Indexed: 10/28/2022]
Abstract
Methylation of lysine 4 (K4) within histone H3 has been linked to active transcription and is removed by LSD1 and the JmjC domain-containing proteins by amino-oxidation or hydroxylation, respectively. Here, we describe the deamination catalyzed by Lysyl oxidase-like 2 protein (LOXL2) as an unconventional chemical mechanism for H3K4 modification. Infrared spectroscopy and mass spectrometry analyses demonstrated that recombinant LOXL2 specifically deaminates trimethylated H3K4. Moreover, LOXL2 activity is linked with the transcriptional control of CDH1 gene by regulating H3K4me3 deamination. These results reveal another H3 modification and provide a different mechanism for H3K4 modification.
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Affiliation(s)
- Nicolás Herranz
- Programa de Recerca en Càncer, IMIM-Hospital del Mar, Barcelona, Spain
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Palić D, Modika KY, Oelofse A, Morey L, Coetzee SE. The protein dispersibility index in the quality control of heat-treated full-fat soybeans: an inter-laboratory study. S AFR J ANIM SCI 2011. [DOI: 10.4314/sajas.v41i4.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Luis N, Morey L, Mejetta S, Pascual G, Janich P, Kuebler B, Cozutto L, Roma G, Nascimento E, Frye M, Di Croce L, Benitah S. Regulation of Human Epidermal Stem Cell Proliferation and Senescence Requires Polycomb- Dependent and -Independent Functions of Cbx4. Cell Stem Cell 2011. [DOI: 10.1016/j.stem.2011.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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36
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Venter G, Labuschagne K, Boikanyo S, Morey L, Snyman M. The repellent effect of organic fatty acids on Culicoides midges as determined with suction light traps in South Africa. Vet Parasitol 2011; 181:365-9. [DOI: 10.1016/j.vetpar.2011.04.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 04/13/2011] [Accepted: 04/20/2011] [Indexed: 10/18/2022]
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37
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Luis N, Morey L, Mejetta S, Pascual G, Janich P, Kuebler B, Roma G, Nascimento E, Frye M, Di Croce L, Benitah S. Regulation of Human Epidermal Stem Cell Proliferation and Senescence Requires Polycomb- Dependent and -Independent Functions of Cbx4. Cell Stem Cell 2011; 9:233-46. [DOI: 10.1016/j.stem.2011.07.013] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 06/15/2011] [Accepted: 07/25/2011] [Indexed: 12/31/2022]
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38
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Venter GJ, Labuschagne K, Boikanyo SNB, Majatladi DM, Morey L. The effect of 1-octen-3-ol and 4-methylphenol on Culicoides midge numbers collected with suction light traps in South Africa. Vet Parasitol 2010; 175:182-6. [PMID: 20933332 DOI: 10.1016/j.vetpar.2010.09.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Revised: 08/29/2010] [Accepted: 09/09/2010] [Indexed: 11/27/2022]
Abstract
Despite some shortcomings, suction light traps are the primary monitoring tool for the collection of Culicoides species (Diptera: Ceratopogonidae). Factors that may increase the efficiency of these traps need to be investigated. In the present study the numbers of Culicoides midges collected with two Onderstepoort black light traps baited with a mixture of 1-octen-3-ol and 4-methylphenol, as a potential olfactory cue, were compared to those of two unbaited traps. Comparisons were done in two and three replicates of a 4 × 4 randomized Latin square design in the presence and absence of cattle. The addition of 1-octen-3-ol and 4-methylphenol, released at 9.1 and 15.5mg/h, respectively, did not influence species richness, numbers collected, sex ratios or age-grading results. Comparisons of Culicoides numbers and especially the abundance of Culicoides imicola Kieffer in collections done in the presence and absence of cattle confirm previous findings that show that host animals will be the primary attraction for Culicoides midges and that light traps mostly sample midges already in the near vicinity of the host.
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Affiliation(s)
- G J Venter
- ARC-Onderstepoort Veterinary Institute, Private Bag X5, 0110 Onderstepoort, South Africa.
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Venter GJ, Hermanides KG, Boikanyo SNB, Majatladi DM, Morey L. The effect of light trap height on the numbers of Culicoides midges collected under field conditions in South Africa. Vet Parasitol 2009; 166:343-5. [PMID: 19800737 DOI: 10.1016/j.vetpar.2009.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Revised: 09/05/2009] [Accepted: 09/10/2009] [Indexed: 11/27/2022]
Abstract
Onderstepoort 220 V suction light traps were operated at four sites at the ARC-Onderstepoort Veterinary Institute to collect Culicoides midges (Diptera; Ceratopogonidae) at 0.6, 1.4, 2.2 and 2.8 m above ground level. Trap heights at these four sites were alternated in three replicates of a 4 x 4 randomized Latin square design. Culicoides midges belonging to 20 species were collected in 48 collections made from 15 to 30 September 2008. The two most abundant Culicoides species to be collected were Culicoides imicola Kieffer (94.2-95.85%) and Culicoides magnus Colaço (2.21-2.72%). Most Culicoides midges were collected at a height of 2.8 m (44.8% of 147158). Statistically significant differences in light trap results were found in the number of midges collected, species composition, parous rates, sex ratios and insect to Culicoides ratios at the various heights. Light trap height is one of a variety of factors that may influence light trap results and highlighted the problems involved in the reliable comparison of light trap data between collection sites. This study emphasized the need for the standardization of techniques for measuring the variables of vectorial capacity.
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Affiliation(s)
- G J Venter
- ARC-Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa.
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40
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Venter GJ, Labuschagne K, Hermanides KG, Boikanyo SNB, Majatladi DM, Morey L. Comparison of the efficiency of five suction light traps under field conditions in South Africa for the collection of Culicoides species. Vet Parasitol 2009; 166:299-307. [PMID: 19758757 DOI: 10.1016/j.vetpar.2009.08.020] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Revised: 08/14/2009] [Accepted: 08/24/2009] [Indexed: 11/28/2022]
Abstract
Culicoides biting midges (Diptera: Ceratopogonidae) are involved in the transmission of a variety of pathogens, the economically most important being the orbiviruses that cause bluetongue and African horse sickness; both of which have been shown to be multi-vector diseases. The identification of all potential vectors will be crucial for the implementation of integrated control measures and disease risk analysis. The primary monitoring tools used for the collection of Culicoides midges are various models of suction light traps. In order to facilitate comparison of data between laboratories the efficiency of five traps (Onderstepoort, Rieb, mini-CDC, Pirbright, BG-sentinel), used at present and in the past in Europe, was compared in the field in South Africa. Comparisons were done either in three replicates of a 4x4 or two replicates of a 5x5 randomized Latin square design. The Onderstepoort trap collected significantly more Culicoides midges than the other traps. Relatively small but statistically significant differences were found in the species composition, parous rates, sex ratios as well as the ratio of Culicoides midges to other insects, as determined by the different traps. It will be important to determine the significance and underlying causes for these differences.
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Affiliation(s)
- G J Venter
- ARC-Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa.
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41
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Villa R, Pasini D, Gutierrez A, Morey L, Occhionorelli M, Viré E, Nomdedeu JF, Jenuwein T, Pelicci PG, Minucci S, Fuks F, Helin K, Di Croce L. Role of the polycomb repressive complex 2 in acute promyelocytic leukemia. Cancer Cell 2007; 11:513-25. [PMID: 17560333 DOI: 10.1016/j.ccr.2007.04.009] [Citation(s) in RCA: 189] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Revised: 12/02/2006] [Accepted: 04/06/2007] [Indexed: 12/31/2022]
Abstract
Epigenetic changes are common alterations in cancer cells. Here, we have investigated the role of Polycomb group proteins in the establishment and maintenance of the aberrant silencing of tumor suppressor genes during transformation induced by the leukemia-associated PML-RARalpha fusion protein. We show that in leukemic cells knockdown of SUZ12, a key component of Polycomb repressive complex 2 (PRC2), reverts not only histone modification but also induces DNA demethylation of PML-RARalpha target genes. This results in promoter reactivation and granulocytic differentiation. Importantly, the epigenetic alterations caused by PML-RARalpha can be reverted by retinoic acid treatment of primary blasts from leukemic patients. Our results demonstrate that the direct targeting of Polycomb group proteins by an oncogene plays a key role during carcinogenesis.
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Affiliation(s)
- Raffaella Villa
- Centre de Regulacio Genomica, c/ Dr. Aiguader 88, 08003 Barcelona, Spain
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42
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Viré E, Brenner C, Deplus R, Blanchon L, Fraga M, Didelot C, Morey L, Van Eynde A, Bernard D, Vanderwinden JM, Bollen M, Esteller M, Croce LD, de Launoit Y, Fuks F. Erratum: The Polycomb group protein EZH2 directly controls DNA methylation. Nature 2007. [DOI: 10.1038/nature05710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Villa R, Morey L, Raker VA, Buschbeck M, Gutierrez A, De Santis F, Corsaro M, Varas F, Bossi D, Minucci S, Pelicci PG, Di Croce L. The methyl-CpG binding protein MBD1 is required for PML-RARalpha function. Proc Natl Acad Sci U S A 2006; 103:1400-5. [PMID: 16432238 PMCID: PMC1360559 DOI: 10.1073/pnas.0509343103] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
PML-RARalpha induces a block of hematopoietic differentiation and acute promyelocytic leukemia. This block is based on its capacity to inactivate target genes by recruiting histone deacetylase (HDAC) and DNA methyltransferase activities. Here we report that MBD1, a member of a conserved family of proteins able to bind methylated DNA, cooperates with PML-RARalpha in transcriptional repression and cellular transformation. PML-RARalpha recruits MBD1 to its target promoter through an HDAC3-mediated mechanism. Binding of HDAC3 and MBD1 is not confined to the promoter region but instead is spread over the locus. Knock-down of HDAC3 expression by RNA interference in acute promyelocytic leukemia cells alleviates PML-RAR-induced promoter silencing. We further demonstrate that retroviral expression of dominant-negative mutants of MBD1 in hematopoietic precursors compromises the ability of PML-RARalpha to block their differentiation and thus restored cell differentiation. Our results demonstrate that PML-RARalpha functions by recruiting an HDAC3-MBD1 complex that contributes to the establishment and maintenance of the silenced chromatin state.
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MESH Headings
- Blotting, Western
- Cell Differentiation
- Cell Line
- Cell Line, Tumor
- Cell Transformation, Neoplastic
- Chromatin/chemistry
- Chromatin/metabolism
- Chromatin Immunoprecipitation
- DNA, Complementary/metabolism
- DNA-Binding Proteins/chemistry
- DNA-Binding Proteins/physiology
- Epigenesis, Genetic
- Gene Silencing
- Genes, Dominant
- Genetic Vectors
- HeLa Cells
- Hematopoietic Stem Cells/cytology
- Histone Deacetylases/metabolism
- Humans
- Immunoprecipitation
- Leukemia/metabolism
- Luciferases/metabolism
- Models, Biological
- Neoplasm Proteins/metabolism
- Neoplasm Proteins/physiology
- Oligonucleotides/chemistry
- Oncogene Proteins, Fusion/metabolism
- Oncogene Proteins, Fusion/physiology
- Plasmids/metabolism
- Promoter Regions, Genetic
- Protein Binding
- Protein Structure, Tertiary
- Transcription Factors/chemistry
- Transcription Factors/physiology
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Affiliation(s)
- Raffaella Villa
- Centre de Regulacio Genomica, Universitat Pompeu Fabra, Passeig Maritim 37-49, 08003 Barcelona, Spain
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44
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Viré E, Brenner C, Deplus R, Blanchon L, Fraga M, Didelot C, Morey L, Van Eynde A, Bernard D, Vanderwinden JM, Bollen M, Esteller M, Di Croce L, de Launoit Y, Fuks F. The Polycomb group protein EZH2 directly controls DNA methylation. Nature 2005; 439:871-4. [PMID: 16357870 DOI: 10.1038/nature04431] [Citation(s) in RCA: 1604] [Impact Index Per Article: 84.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Accepted: 11/15/2005] [Indexed: 02/07/2023]
Abstract
The establishment and maintenance of epigenetic gene silencing is fundamental to cell determination and function. The essential epigenetic systems involved in heritable repression of gene activity are the Polycomb group (PcG) proteins and the DNA methylation systems. Here we show that the corresponding silencing pathways are mechanistically linked. We find that the PcG protein EZH2 (Enhancer of Zeste homolog 2) interacts-within the context of the Polycomb repressive complexes 2 and 3 (PRC2/3)-with DNA methyltransferases (DNMTs) and associates with DNMT activity in vivo. Chromatin immunoprecipitations indicate that binding of DNMTs to several EZH2-repressed genes depends on the presence of EZH2. Furthermore, we show by bisulphite genomic sequencing that EZH2 is required for DNA methylation of EZH2-target promoters. Our results suggest that EZH2 serves as a recruitment platform for DNA methyltransferases, thus highlighting a previously unrecognized direct connection between two key epigenetic repression systems.
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Affiliation(s)
- Emmanuelle Viré
- Free University of Brussels, Faculty of Medicine, Laboratory of Molecular Virology, 808 route de Lennik, 1070 Brussels, Belgium
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45
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Abstract
The genetic information of almost all eukaryotic cells is stored in chromatin. In cancer cells, alterations in chromatin organization or in its epigenetic marks occur frequently. Among these are changes in the patterns of DNA and histone methylation. Using Acute Promyelocytic Leukemia as model system we could demonstrate a direct correlation of epigenetic events induced by the driving oncogene product PML-RARalpha and cancer progression. Several of the enzymes ultimately responsible for these events can be inhibited by small compound inhibitors and thus can serve as targets in cancer therapy. In this article, we review the role of DNA methylation, histone methylation and chromatin alterations in human diseases. A picture is emerging in which these epigenetic signals "cross-talk" and are implicated in the physiological and pathological spreading of gene silencing.
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46
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Weber K, Eisman R, Higgins S, Morey L, Patty A, Tausek M, Zeng ZB. An analysis of polygenes affecting wing shape on chromosome 2 in Drosophila melanogaster. Genetics 2001; 159:1045-57. [PMID: 11729152 PMCID: PMC1461851 DOI: 10.1093/genetics/159.3.1045] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [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] [Indexed: 11/13/2022] Open
Abstract
Genetic effects on an index of wing shape on chromosome 2 of Drosophila melanogaster were mapped using isogenic recombinants with transposable element markers. At least 10 genes with small additive effects are dispersed evenly along the chromosome. Many interactions exist, with only small net effects in homozygous recombinants and little effect on phenotypic variance. Heterozygous chromosome segments show almost no dominance. Pleiotropic effects on leg shape are only minor. At first view, wing shape genes form a rather homogeneous class, but certain complexities remain unresolved.
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Affiliation(s)
- K Weber
- Department of Biological Sciences, University of Southern Maine, Portland, Maine 04104-9300, USA.
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47
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Weber K, Eisman R, Morey L, Patty A, Sparks J, Tausek M, Zeng ZB. An analysis of polygenes affecting wing shape on chromosome 3 in Drosophila melanogaster. Genetics 1999; 153:773-86. [PMID: 10511557 PMCID: PMC1460793 DOI: 10.1093/genetics/153.2.773] [Citation(s) in RCA: 88] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Loci on the third chromosome of Drosophila melanogaster that affect an index of wing shape were mapped, using recombinant isogenic lines, with transposable elements as markers. Many genes with small subequal effects are dispersed along the whole chromosome. Their alleles act nearly additively in heterozygotes. They have small correlated effects on leg shape, but no detectable effects on halteres. Small negative net interactions occur over most of the chromosome. The data set of 519 recombinant isogenic lines can be explained reasonably well by two models. One model posits an indefinitely large number of loci with no interactions. The other model posits 11 loci with additive effects whose sum equals the total phenotypic range and with large positive and negative interactions that nearly cancel each other.
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Affiliation(s)
- K Weber
- Department of Biological Sciences, University of Southern Maine, Portland, Maine 04104-9300, USA.
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48
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Abstract
We begin with a review of the data that challenge the current categorical system for classifying personality disorder, focusing on the central assessment issues of convergent and discriminant validity. These data indicate that while there is room for improvement in assessment, even greater change is needed in conceptualization than in instrumentation. Accordingly, we then refocus the categorical-dimensional debate in assessment terms, and place it in the broader context of such issues as the hierarchical structure of personality, overlap and distinctions between normal and abnormal personality, sources of information in personality disorder assessment, and overlap and discrimination of trait and state assessment. We conclude that more complex conceptual models that can incorporate both biological and environmental influences on the development of adaptive and maladaptive personality are needed.
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Affiliation(s)
- L A Clark
- Department of Psychology, University of Iowa, Iowa City 52242-1407, USA.
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49
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Morey L. TQM and the surgical technologist: the opportunity. Surg Technol 1994; 26:7-9; quiz 10. [PMID: 10131826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- L Morey
- St Luke's Hospital, Saginaw, MI
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50
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Ban TA, Morey L, Aguglia E, Azzarelli O, Balsano F, Marigliano V, Caglieris N, Sterlicchio M, Capurso A, Tomasi NA. Nimodipine in the treatment of old age dementias. Prog Neuropsychopharmacol Biol Psychiatry 1990; 14:525-51. [PMID: 2236581 DOI: 10.1016/0278-5846(90)90005-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
1. In a multicenter, placebo-controlled, double-blind clinical study in 178 elderly patients with cognitive decline, nimodipine, a calcium antagonist was found to be a therapeutically effective agent in the treatment of old age dementias. 2. Treatment with 90 mg of nimodipine administered orally in divided doses for 12 weeks was significantly superior to an inactive placebo on all outcome measures including the Wechsler Memory Scale, the Mini Mental State Examination, the Global Deterioration Scale, the Sandoz Clinical Assessment Geriatric Scale, the Plutchik Geriatric Rating Scale, the Severity of Illness and Global Improvement Scales of Clinical Global Impression, and the Hamilton Psychiatric Rating Scale for Depression. 3. Adverse effects with nimodipine were few and mild. The drug was equally well tolerated and equally effective in the two major dementias of old age, i.e., primary degenerative and multi-infarct. The number of abnormal laboratory test readings remained essentially unchanged from pre-treatment to post-treatment.
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Affiliation(s)
- T A Ban
- Department of Psychiatry, Vanderbilt University, Nashville, TN
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