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Miller KA, Cruz Walma DA, Pinkas DM, Tooze RS, Bufton JC, Richardson W, Manning CE, Hunt AE, Cros J, Hartill V, Parker MJ, McGowan SJ, Twigg SRF, Chalk R, Staunton D, Johnson D, Wilkie AOM, Bullock AN. BTB domain mutations perturbing KCTD15 oligomerisation cause a distinctive frontonasal dysplasia syndrome. J Med Genet 2024; 61:490-501. [PMID: 38296633 DOI: 10.1136/jmg-2023-109531] [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: 07/24/2023] [Accepted: 12/21/2023] [Indexed: 02/02/2024]
Abstract
INTRODUCTION KCTD15 encodes an oligomeric BTB domain protein reported to inhibit neural crest formation through repression of Wnt/beta-catenin signalling, as well as transactivation by TFAP2. Heterozygous missense variants in the closely related paralogue KCTD1 cause scalp-ear-nipple syndrome. METHODS Exome sequencing was performed on a two-generation family affected by a distinctive phenotype comprising a lipomatous frontonasal malformation, anosmia, cutis aplasia of the scalp and/or sparse hair, and congenital heart disease. Identification of a de novo missense substitution within KCTD15 led to targeted sequencing of DNA from a similarly affected sporadic patient, revealing a different missense mutation. Structural and biophysical analyses were performed to assess the effects of both amino acid substitutions on the KCTD15 protein. RESULTS A heterozygous c.310G>C variant encoding p.(Asp104His) within the BTB domain of KCTD15 was identified in an affected father and daughter and segregated with the phenotype. In the sporadically affected patient, a de novo heterozygous c.263G>A variant encoding p.(Gly88Asp) was present in KCTD15. Both substitutions were found to perturb the pentameric assembly of the BTB domain. A crystal structure of the BTB domain variant p.(Gly88Asp) revealed a closed hexameric assembly, whereas biophysical analyses showed that the p.(Asp104His) substitution resulted in a monomeric BTB domain likely to be partially unfolded at physiological temperatures. CONCLUSION BTB domain substitutions in KCTD1 and KCTD15 cause clinically overlapping phenotypes involving craniofacial abnormalities and cutis aplasia. The structural analyses demonstrate that missense substitutions act through a dominant negative mechanism by disrupting the higher order structure of the KCTD15 protein complex.
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Affiliation(s)
- Kerry A Miller
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - David A Cruz Walma
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
- Cell Biology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Daniel M Pinkas
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
- Department of Biological Sciences, Universidad Loyola Andalucía, Seville, Spain
| | - Rebecca S Tooze
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Joshua C Bufton
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | | | | | - Alice E Hunt
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Julien Cros
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Verity Hartill
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
- Yorkshire Regional Genetics Service, Leeds Teaching Hospitals NHS Trust, Chapel Allerton Hospital, Leeds, UK
| | - Michael J Parker
- Sheffield Clinical Genomics Service, Sheffield Children's Hospital NHS Foundation Trust, Sheffield, UK
| | - Simon J McGowan
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Stephen R F Twigg
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Rod Chalk
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - David Staunton
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - David Johnson
- Craniofacial Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Andrew O M Wilkie
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Craniofacial Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Alex N Bullock
- Centre for Medicines Discovery, University of Oxford, Oxford, UK
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Itoh T, Uehara M, Yura S, Wang JC, Fujii Y, Nakanishi A, Shimizu T, Hibi M. Foxp and Skor family proteins control differentiation of Purkinje cells from Ptf1a- and Neurog1-expressing progenitors in zebrafish. Development 2024; 151:dev202546. [PMID: 38456494 DOI: 10.1242/dev.202546] [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: 11/15/2023] [Accepted: 03/01/2024] [Indexed: 03/09/2024]
Abstract
Cerebellar neurons, such as GABAergic Purkinje cells (PCs), interneurons (INs) and glutamatergic granule cells (GCs) are differentiated from neural progenitors expressing proneural genes, including ptf1a, neurog1 and atoh1a/b/c. Studies in mammals previously suggested that these genes determine cerebellar neuron cell fate. However, our studies on ptf1a;neurog1 zebrafish mutants and lineage tracing of ptf1a-expressing progenitors have revealed that the ptf1a/neurog1-expressing progenitors can generate diverse cerebellar neurons, including PCs, INs and a subset of GCs in zebrafish. The precise mechanisms of how each cerebellar neuron type is specified remains elusive. We found that genes encoding the transcriptional regulators Foxp1b, Foxp4, Skor1b and Skor2, which are reportedly expressed in PCs, were absent in ptf1a;neurog1 mutants. foxp1b;foxp4 mutants showed a strong reduction in PCs, whereas skor1b;skor2 mutants completely lacked PCs, and displayed an increase in immature GCs. Misexpression of skor2 in GC progenitors expressing atoh1c suppressed GC fate. These data indicate that Foxp1b/4 and Skor1b/2 function as key transcriptional regulators in the initial step of PC differentiation from ptf1a/neurog1-expressing neural progenitors, and that Skor1b and Skor2 control PC differentiation by suppressing their differentiation into GCs.
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Affiliation(s)
- Tsubasa Itoh
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Mari Uehara
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Shinnosuke Yura
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Jui Chun Wang
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Yukimi Fujii
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Akiko Nakanishi
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Takashi Shimizu
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Masahiko Hibi
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
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3
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Khan M, Djamei A. TOPLESS Corepressors as an Emerging Hub of Plant Pathogen Effectors. Mol Plant Microbe Interact 2024; 37:190-195. [PMID: 38205771 DOI: 10.1094/mpmi-10-23-0158-fi] [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] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Transcriptional corepressors form an ancient and essential layer of gene expression control in eukaryotes. TOPLESS and TOPLESS-RELATED (TPL/TPR) proteins constitute a conserved family of Groucho (Gro)/thymidine uptake 1 (Tup1)-type transcriptional corepressors and control diverse growth, developmental, and stress signaling responses in plants. Because of their central and versatile regulatory roles, they act as a signaling hub to integrate various input signaling pathways in the transcriptional responses. Recently, increasing pieces of evidence indicate the roles of TPL/TPR family proteins in the modulation of plant immunity. This is supported by studies on effectors of distantly related pathogens that target TPL/TPR proteins in planta. In this short review, we will summarize the latest findings concerning pathogens targeting plant TPL/TPR proteins to manipulate plant signaling responses for the successful invasion of their hosts. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Mamoona Khan
- Department of Plant Pathology, Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany
| | - Armin Djamei
- Department of Plant Pathology, Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany
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4
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Hong SH, Castro G, Wang D, Nofsinger R, Kane M, Folias A, Atkins AR, Yu RT, Napoli JL, Sassone-Corsi P, de Rooij DG, Liddle C, Downes M, Evans RM. Targeting nuclear receptor corepressors for reversible male contraception. Proc Natl Acad Sci U S A 2024; 121:e2320129121. [PMID: 38377195 PMCID: PMC10907271 DOI: 10.1073/pnas.2320129121] [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: 11/30/2023] [Accepted: 01/06/2024] [Indexed: 02/22/2024] Open
Abstract
Despite numerous female contraceptive options, nearly half of all pregnancies are unintended. Family planning choices for men are currently limited to unreliable condoms and invasive vasectomies with questionable reversibility. Here, we report the development of an oral contraceptive approach based on transcriptional disruption of cyclical gene expression patterns during spermatogenesis. Spermatogenesis involves a continuous series of self-renewal and differentiation programs of spermatogonial stem cells (SSCs) that is regulated by retinoic acid (RA)-dependent activation of receptors (RARs), which control target gene expression through association with corepressor proteins. We have found that the interaction between RAR and the corepressor silencing mediator of retinoid and thyroid hormone receptors (SMRT) is essential for spermatogenesis. In a genetically engineered mouse model that negates SMRT-RAR binding (SMRTmRID mice), the synchronized, cyclic expression of RAR-dependent genes along the seminiferous tubules is disrupted. Notably, the presence of an RA-resistant SSC population that survives RAR de-repression suggests that the infertility attributed to the loss of SMRT-mediated repression is reversible. Supporting this notion, we show that inhibiting the action of the SMRT complex with chronic, low-dose oral administration of a histone deacetylase inhibitor reversibly blocks spermatogenesis and fertility without affecting libido. This demonstration validates pharmacologic targeting of the SMRT repressor complex for non-hormonal male contraception.
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Affiliation(s)
- Suk-Hyun Hong
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Glenda Castro
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Dan Wang
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Russell Nofsinger
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Maureen Kane
- Department of Nutritional Sciences and Toxicology, The University of California, Berkeley, CA94720
| | - Alexandra Folias
- Department of Nutritional Sciences and Toxicology, The University of California, Berkeley, CA94720
| | - Annette R. Atkins
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Ruth T. Yu
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Joseph L. Napoli
- Department of Nutritional Sciences and Toxicology, The University of California, Berkeley, CA94720
| | - Paolo Sassone-Corsi
- Department of Biological Chemistry, Center for Epigenetics and Metabolism, U1233 INSERM, University of California, Irvine, CA92697
| | - Dirk G. de Rooij
- Reproductive Biology Group, Division of Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 CHUtrecht, The Netherlands
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research and Sydney Medical School, University of Sydney, Westmead, NSW2145, Australia
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Ronald M. Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
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Bodetko A, Chrzanowska J, Rydzanicz M, Borys-Iwanicka A, Karpinski P, Bladowska J, Ploski R, Smigiel R. Further Delineation of Clinical Phenotype of ZMYND11 Variants in Patients with Neurodevelopmental Dysmorphic Syndrome. Genes (Basel) 2024; 15:256. [PMID: 38397245 PMCID: PMC10888010 DOI: 10.3390/genes15020256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Intellectual disability with speech delay and behavioural abnormalities, as well as hypotonia, seizures, feeding difficulties and craniofacial dysmorphism, are the main symptoms associated with pathogenic variants of the ZMYND11 gene. The range of clinical manifestations of the ZMYND phenotype is constantly being expanded by new cases described in the literature. Here, we present two previously unreported paediatric patients with neurodevelopmental challenges, who were diagnosed with missense variants in the ZMYND11 gene. It should be noted that one of the individuals manifested with hyperinsulinaemic hypoglycaemia (HH), a symptom that was not described before in published works. The reason for the occurrence of HH in our proband is not clear, so we try to explain the origin of this symptom in the context of the ZMYND11 syndrome. Thus, this paper contributes to knowledge on the range of possible manifestations of the ZMYND disease and provides further evidence supporting its association with neurodevelopmental challenges.
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Affiliation(s)
- Aleksandra Bodetko
- Department of Pediatrics, Endocrinology, Diabetology and Metabolic Diseases, Wroclaw Medical University, 50-368 Wroclaw, Poland; (A.B.); (R.S.)
| | - Joanna Chrzanowska
- Department of Pediatrics, Endocrinology, Diabetology and Metabolic Diseases, Wroclaw Medical University, 50-368 Wroclaw, Poland; (A.B.); (R.S.)
| | - Malgorzata Rydzanicz
- Department of Medical Genetics, Medical University of Warsaw, 02-106 Warsaw, Poland; (M.R.); (R.P.)
| | - Agnieszka Borys-Iwanicka
- Department of Paediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, 50-369 Wroclaw, Poland
| | - Pawel Karpinski
- Department of Genetics, Wroclaw Medical University, 50-368 Wroclaw, Poland;
| | - Joanna Bladowska
- Department of Radiology, Wroclaw 4th Military Clinical Hospital, Faculty of Medicine, Wroclaw University of Science and Technology, 53-114 Wroclaw, Poland;
- Department of Radiology and Imaging Diagnostics, Emergency Medicine Center, Marciniak Lower Silesian Specialist Hospital, 54-049 Wroclaw, Poland
| | - Rafal Ploski
- Department of Medical Genetics, Medical University of Warsaw, 02-106 Warsaw, Poland; (M.R.); (R.P.)
| | - Robert Smigiel
- Department of Pediatrics, Endocrinology, Diabetology and Metabolic Diseases, Wroclaw Medical University, 50-368 Wroclaw, Poland; (A.B.); (R.S.)
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6
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Wu M, Hanly A, Gibson F, Fisher R, Rogers S, Park K, Zuger A, Kuang K, Kalin JH, Nocco S, Cole M, Xiao A, Agus F, Labadorf A, Beck S, Collard M, Cole PA, Alani RM. The CoREST repressor complex mediates phenotype switching and therapy resistance in melanoma. J Clin Invest 2024; 134:e171063. [PMID: 38300709 PMCID: PMC10940100 DOI: 10.1172/jci171063] [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: 04/03/2023] [Accepted: 01/22/2024] [Indexed: 02/03/2024] Open
Abstract
Virtually all patients with BRAF-mutant melanoma develop resistance to MAPK inhibitors largely through nonmutational events. Although the epigenetic landscape is shown to be altered in therapy-resistant melanomas and other cancers, a specific targetable epigenetic mechanism has not been validated. Here, we evaluated the corepressor for element 1-silencing transcription factor (CoREST) epigenetic repressor complex and the recently developed bivalent inhibitor corin within the context of melanoma phenotype plasticity and therapeutic resistance. We found that CoREST was a critical mediator of the major distinct melanoma phenotypes and that corin treatment of melanoma cells led to phenotype reprogramming. Global assessment of transcript and chromatin changes conferred by corin revealed specific effects on histone marks connected to epithelial-mesenchymal transition-associated (EMT-associated) transcription factors and the dual-specificity phosphatases (DUSPs). Remarkably, treatment of BRAF inhibitor-resistant (BRAFi-R) melanomas with corin promoted resensitization to BRAFi therapy. DUSP1 was consistently downregulated in BRAFi-R melanomas, which was reversed by corin treatment and associated with inhibition of p38 MAPK activity and resensitization to BRAFi therapies. Moreover, this activity was recapitulated by the p38 MAPK inhibitor BIRB 796. These findings identify the CoREST repressor complex as a central mediator of melanoma phenotype plasticity and resistance to targeted therapy and suggest that CoREST inhibitors may prove beneficial for patients with BRAFi-resistant melanoma.
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Affiliation(s)
- Muzhou Wu
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Ailish Hanly
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Frederick Gibson
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Robert Fisher
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Samantha Rogers
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Kihyun Park
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Angelina Zuger
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Kevin Kuang
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Jay H. Kalin
- Division of Genetics, Departments of Medicine and Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Sarah Nocco
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Matthew Cole
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Amy Xiao
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Filisia Agus
- Bioinformatics Program, Boston University, Boston, Massachusetts, USA
| | - Adam Labadorf
- Bioinformatics Program, Boston University, Boston, Massachusetts, USA
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Samuel Beck
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Marianne Collard
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Philip A. Cole
- Division of Genetics, Departments of Medicine and Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Rhoda M. Alani
- Department of Dermatology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts, USA
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7
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Kalita B, Sahu S, Bharadwaj A, Panneerselvam L, Martinez-Cebrian G, Agarwal M, Mathew SJ. The Wnt-pathway corepressor TLE3 interacts with the histone methyltransferase KMT1A to inhibit differentiation in Rhabdomyosarcoma. Oncogene 2024; 43:524-538. [PMID: 38177411 DOI: 10.1038/s41388-023-02911-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024]
Abstract
Rhabdomyosarcoma tumor cells resemble differentiating skeletal muscle cells, which unlike normal muscle cells, fail to undergo terminal differentiation, underlying their proliferative and metastatic properties. We identify the corepressor TLE3 as a key regulator of rhabdomyosarcoma tumorigenesis by inhibiting the Wnt-pathway. Loss of TLE3 function leads to Wnt-pathway activation, reduced proliferation, decreased migration, and enhanced differentiation in rhabdomyosarcoma cells. Muscle-specific TLE3-knockout results in enhanced expression of terminal myogenic differentiation markers during normal mouse development. TLE3-knockout rhabdomyosarcoma cell xenografts result in significantly smaller tumors characterized by reduced proliferation, increased apoptosis and enhanced differentiation. We demonstrate that TLE3 interacts with and recruits the histone methyltransferase KMT1A, leading to repression of target gene activation and inhibition of differentiation in rhabdomyosarcoma. A combination drug therapy regime to promote Wnt-pathway activation by the small molecule BIO and inhibit KMT1A by the drug chaetocin led to significantly reduced tumor volume, decreased proliferation, increased expression of differentiation markers and increased survival in rhabdomyosarcoma tumor-bearing mice. Thus, TLE3, the Wnt-pathway and KMT1A are excellent drug targets which can be exploited for treating rhabdomyosarcoma tumors.
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Affiliation(s)
- Bhargab Kalita
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY, 10016, USA
| | - Subhashni Sahu
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
| | - Anushree Bharadwaj
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
| | - Lakshmikanthan Panneerselvam
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
| | | | - Megha Agarwal
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
- Affiliated to Manipal University, Manipal, Karnataka, 576104, India
- Department of Pediatrics, School of Medicine, Stanford University, Stanford, CA, USA
| | - Sam J Mathew
- Developmental Genetics Laboratory Regional Centre for Biotechnology (RCB) NCR Biotech Science Cluster 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India.
- Affiliated to Manipal University, Manipal, Karnataka, 576104, India.
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8
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Choi J, Kim T, Cho EJ. HIRA vs. DAXX: the two axes shaping the histone H3.3 landscape. Exp Mol Med 2024; 56:251-263. [PMID: 38297159 PMCID: PMC10907377 DOI: 10.1038/s12276-023-01145-3] [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: 09/27/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 02/02/2024] Open
Abstract
H3.3, the most common replacement variant for histone H3, has emerged as an important player in chromatin dynamics for controlling gene expression and genome integrity. While replicative variants H3.1 and H3.2 are primarily incorporated into nucleosomes during DNA synthesis, H3.3 is under the control of H3.3-specific histone chaperones for spatiotemporal incorporation throughout the cell cycle. Over the years, there has been progress in understanding the mechanisms by which H3.3 affects domain structure and function. Furthermore, H3.3 distribution and relative abundance profoundly impact cellular identity and plasticity during normal development and pathogenesis. Recurrent mutations in H3.3 and its chaperones have been identified in neoplastic transformation and developmental disorders, providing new insights into chromatin biology and disease. Here, we review recent findings emphasizing how two distinct histone chaperones, HIRA and DAXX, take part in the spatial and temporal distribution of H3.3 in different chromatin domains and ultimately achieve dynamic control of chromatin organization and function. Elucidating the H3.3 deposition pathways from the available histone pool will open new avenues for understanding the mechanisms by which H3.3 epigenetically regulates gene expression and its impact on cellular integrity and pathogenesis.
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Affiliation(s)
- Jinmi Choi
- Sungkyunkwan University School of Pharmacy, Seoburo 2066, Jangan-gu Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Taewan Kim
- Sungkyunkwan University School of Pharmacy, Seoburo 2066, Jangan-gu Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Eun-Jung Cho
- Sungkyunkwan University School of Pharmacy, Seoburo 2066, Jangan-gu Suwon, Gyeonggi-do, 16419, Republic of Korea.
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9
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Abe Y, Kofman ER, Ouyang Z, Cruz-Becerra G, Spann NJ, Seidman JS, Troutman TD, Stender JD, Taylor H, Fan W, Link VM, Shen Z, Sakai J, Downes M, Evans RM, Kadonaga JT, Rosenfeld MG, Glass CK. A TLR4/TRAF6-dependent signaling pathway mediates NCoR coactivator complex formation for inflammatory gene activation. Proc Natl Acad Sci U S A 2024; 121:e2316104121. [PMID: 38165941 PMCID: PMC10786282 DOI: 10.1073/pnas.2316104121] [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: 09/15/2023] [Accepted: 11/21/2023] [Indexed: 01/04/2024] Open
Abstract
The nuclear receptor corepressor (NCoR) forms a complex with histone deacetylase 3 (HDAC3) that mediates repressive functions of unliganded nuclear receptors and other transcriptional repressors by deacetylation of histone substrates. Recent studies provide evidence that NCoR/HDAC3 complexes can also exert coactivator functions in brown adipocytes by deacetylating and activating PPARγ coactivator 1α (PGC1α) and that signaling via receptor activator of nuclear factor kappa-B (RANK) promotes the formation of a stable NCoR/HDAC3/PGC1β complex that coactivates nuclear factor kappa-B (NFκB)- and activator protein 1 (AP-1)-dependent genes required for osteoclast differentiation. Here, we demonstrate that activation of Toll-like receptor (TLR) 4, but not TLR3, the interleukin 4 (IL4) receptor nor the Type I interferon receptor, also promotes assembly of an NCoR/HDAC3/PGC1β coactivator complex. Receptor-specific utilization of TNF receptor-associated factor 6 (TRAF6) and downstream activation of extracellular signal-regulated kinase 1 (ERK1) and TANK-binding kinase 1 (TBK1) accounts for the common ability of RANK and TLR4 to drive assembly of an NCoR/HDAC3/PGC1β complex in macrophages. ERK1, the p65 component of NFκB, and the p300 histone acetyltransferase (HAT) are also components of the induced complex and are associated with local histone acetylation and transcriptional activation of TLR4-dependent enhancers and promoters. These observations identify a TLR4/TRAF6-dependent signaling pathway that converts NCoR from a corepressor of nuclear receptors to a coactivator of NFκB and AP-1 that may be relevant to functions of NCoR in other developmental and homeostatic processes.
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Affiliation(s)
- Yohei Abe
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
| | - Eric R. Kofman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
- Stem Cell Program, University of California San Diego, La Jolla, CA92093
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA92093
| | - Zhengyu Ouyang
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
| | - Grisel Cruz-Becerra
- Department of Molecular Biology, University of California San Diego, La Jolla, CA92093
| | - Nathanael J. Spann
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
| | - Jason S. Seidman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
| | - Ty D. Troutman
- Department of Medicine, University of California San Diego, La Jolla, CA92093
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, OH45229
| | - Joshua D. Stender
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
| | - Havilah Taylor
- Department and School of Medicine, University of California San Diego, La Jolla, CA92093
| | - Weiwei Fan
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Verena M. Link
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
- Faculty of Biology, Department II, Ludwig-Maximilians Universität München, Munich82152, Germany
| | - Zeyang Shen
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
- Department of Bioengineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA92093
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo153-8904, Japan
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai980-8575, Japan
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - Ronald M. Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA92037
| | - James T. Kadonaga
- Department of Molecular Biology, University of California San Diego, La Jolla, CA92093
| | - Michael G. Rosenfeld
- Department and School of Medicine, University of California San Diego, La Jolla, CA92093
| | - Christopher K. Glass
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA92093
- Department of Medicine, University of California San Diego, La Jolla, CA92093
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10
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Gan S, Qu F, Zhang X, Pan X, Xu D, Cui X, Hou J. LRP5 competes for SPOP binding to enhance tumorigenesis mediated by Daxx and PD-L1 in prostate cancer. Exp Cell Res 2024; 434:113857. [PMID: 38008278 DOI: 10.1016/j.yexcr.2023.113857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Genetic factors coordinate with environmental factors to drive the pathogenesis of prostate adenocarcinoma (PRAD). SPOP is one of the most mutated genes and LRP5 mediates lipid metabolism that is abnormally altered in PRAD. Here, we investigated the potential cross-talk between SPOP and LRP5 in PRAD. We find a negative correlation between SPOP and LRP5 proteins in PRAD. SPOP knockdown increased LRP5 protein while SPOP overexpression resulted in LRP5 reduction that was fully rescued by proteasome inhibitors. LRP5 intracellular tail has SPOP binding site and the direct interaction between LRP5 and SPOP was confirmed by Co-IP and GST-pulldown. Moreover, LRP5 competed with Daxx for SPOP-mediated degradation, establishing a dynamic balance among SPOP, LRP5 and Daxx. Overexpression of LRP5 tail could shift this balance to enhance Daxx-mediated transcriptional inhibition, and inhibit T cell activity in a co-culture system. Further, we generated human and mouse prostate cancer cell lines expressing SPOP variants (F133V, A227V, R368H). SPOP-F133V and SPOP-A227V have specific effects in up-regulating the protein levels of PD-1 and PD-L1. Consistently, SPOP-F133V and SPOP-A227V show robust inhibitory effects on T cells compared to WT SPOP in co-culture. This is further supported by the mouse syngeneic model showing that SPOP-F133V and SPOP-A227V enhance tumorigenesis of prostate cancer in in-vivo condition. Taken together, our study provides evidence that SPOP-LRP5 crosstalk plays an essential role, and the genetic variants of SPOP differentially modulate the expression and activity of immune checkpoints in prostate cancer.
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Affiliation(s)
- Sishun Gan
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China; Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Fajun Qu
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Xiangmin Zhang
- Department of Urology, Shanghai Baoshan Luodian Hospital, Baoshan District, Shanghai, 201908, PR China
| | - Xiuwu Pan
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Da Xu
- Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Xingang Cui
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China.
| | - Jianquan Hou
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China.
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11
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Song S, Wang N, Huang XW, Jiang Q, Cheng XR, Pang N, Lei L. Daxx knockdown promoted rDNA transcription without impairing H3.3 expression in mouse preimplantation embryos. Anat Histol Embryol 2024; 53:e12974. [PMID: 37767699 DOI: 10.1111/ahe.12974] [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: 06/16/2023] [Revised: 08/13/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023]
Abstract
During fertilization, DAXX (death domain-associated protein) mediates histone variant H3.3 incorporation into heterochromatin, which plays an important role in the maintenance of genomic integrity. rDNA, the ribosomal gene, is included in the first wave of gene activation after fertilization. Our and other studies indicated that loss of Daxx disturbs rDNA heterochromatinization and promotes rDNA transcription without change in protein expression of H3.3. However, maternal and zygotic deletion of Daxx impairs blastocyst development. Whether Daxx knockdown affects H3.3 expression and improves the rDNA transcription in preimplantation development has not been reported. In the present study, we injected HA-labelled H3.3 (H3.3-HA) into oocytes during ICSI procedure, and detected H3.3 and DAXX by immunofluorescent staining. Then, we knockdowned Daxx and detected the gene expression levels of Daxx, H3.3, 18s and 47s rRNA. We also performed immunofluorescent staining of B23, γH2A and EdU incorporation to demonstrate nuclear structure, DNA damage and replication. We found injection of H3.3-HA did not impair preimplantation development. Daxx siRNA did not change expression of H3.3 mRNA, and the development of two-cell embryos and blastocysts, but the overall replication and expression levels of rRNA were increased compared with that in the control group. Finally, knockdown of DAXX did not aggravate the DNA damage but loosened the nucleolus. We concluded that Daxx knockdown promoted DNA replication and rDNA transcription, but did not affect H3.3 expression and subsequent preimplantation development.
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Affiliation(s)
- Sihang Song
- Department of Histology and Embryology, Harbin Medical University, Daqing, China
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Nan Wang
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Xing-Wei Huang
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Qi Jiang
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Xiang-Rong Cheng
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Nan Pang
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
| | - Lei Lei
- Department of Histology and Embryology, Harbin Medical University, Harbin, China
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12
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Moghaddam PA, Young RH, Ismiil ND, Bennett JA, Oliva E. An Unusual Endometrial Stromal Neoplasm With JAZF1-BCORL1 Rearrangement. Int J Gynecol Pathol 2024; 43:33-40. [PMID: 36811828 DOI: 10.1097/pgp.0000000000000941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Endometrial stromal tumors represent the second most common category of uterine mesenchymal tumors. Several different histologic variants and underlying genetic alterations have been recognized, one such being a group associated with BCORL1 rearrangements. They are usually high-grade endometrial stromal sarcomas, often associated with prominent myxoid background and aggressive behavior. Here, we report an unusual endometrial stromal neoplasm with JAZF1-BCORL1 rearrangement and briefly review the literature. The neoplasm formed a well-circumscribed uterine mass in a 50-yr-old woman and had an unusual morphologic appearance that did not warrant a high-grade categorization. It was characterized by a predominant population of epithelioid cells with clear to focally eosinophilic cytoplasm growing in interanastomosing cords and trabeculae set in a hyalinized stroma as well as nested and fascicular growths imparting focal resemblance to a uterine tumor resembling ovarian sex-cord tumor, PEComa, and a smooth muscle neoplasm. A minor storiform growth of spindle cells reminiscent of the fibroblastic variant of low-grade endometrial stromal sarcoma was also noted but conventional areas of low-grade endometrial stromal neoplasm were not identified. This case expands the spectrum of morphologic features seen in endometrial stromal tumors, especially when associated with a BCORL1 fusion and highlights the utility of immunohistochemical and molecular techniques in the diagnosis of these tumors, not all of which are high grade.
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13
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Olivares-Costa M, Oyarzún GM, Verbel-Vergara D, González MP, Arancibia D, Andrés ME, Opazo JC. Evolution of lysine-specific demethylase 1 and REST corepressor gene families and their molecular interaction. Commun Biol 2023; 6:1267. [PMID: 38097664 PMCID: PMC10721905 DOI: 10.1038/s42003-023-05652-x] [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: 11/26/2021] [Accepted: 11/30/2023] [Indexed: 12/17/2023] Open
Abstract
Lysine-specific demethylase 1A (LSD1) binds to the REST corepressor (RCOR) protein family of corepressors to erase transcriptionally active marks on histones. Functional diversity in these complexes depends on the type of RCOR included, which modulates the catalytic activity of the complex. Here, we studied the duplicative history of the RCOR and LSD gene families and analyzed the evolution of their interaction. We found that RCOR genes are the product of the two rounds of whole-genome duplications that occurred early in vertebrate evolution. In contrast, the origin of the LSD genes traces back before to the divergence of animals and plants. Using bioinformatics tools, we show that the RCOR and LSD1 interaction precedes the RCOR repertoire expansion that occurred in the last common ancestor of jawed vertebrates. Overall, we trace LSD1-RCOR complex evolution and propose that animal non-model species offer advantages in addressing questions about the molecular biology of this epigenetic complex.
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Affiliation(s)
- Montserrat Olivares-Costa
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Ciencias Biomédica, Facultad de Medicina, Universidad Católica del Norte, Coquimbo, Chile
| | - Gianluca Merello Oyarzún
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Department of Biological Sciences, Columbia University, New York, NY, USA
- Department of Genetics and Development, Columbia University Medical Center, New York, NY, USA
| | - Daniel Verbel-Vergara
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcela P González
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Duxan Arancibia
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Universidad Católica del Norte, Antofagasta, Chile
| | - María E Andrés
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Juan C Opazo
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Valdivia, Chile.
- Integrative Biology Group, Valdivia, Chile.
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Valdivia, Chile.
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14
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Contreras-Jurado C, Montero-Pedrazuela A, Pérez RF, Alemany S, Fraga MF, Aranda A. The thyroid hormone enhances mouse embryonic fibroblasts reprogramming to pluripotent stem cells: role of the nuclear receptor corepressor 1. Front Endocrinol (Lausanne) 2023; 14:1235614. [PMID: 38107517 PMCID: PMC10722291 DOI: 10.3389/fendo.2023.1235614] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/23/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction Pluripotent stem cells can be generated from somatic cells by the Yamanaka factors Oct4, Sox2, Klf4 and c-Myc. Methods Mouse embryonic fibroblasts (MEFs) were transduced with the Yamanaka factors and generation of induced pluripotent stem cells (iPSCs) was assessed by formation of alkaline phosphatase positive colonies, pluripotency gene expression and embryod bodies formation. Results The thyroid hormone triiodothyronine (T3) enhances MEFs reprogramming. T3-induced iPSCs resemble embryonic stem cells in terms of the expression profile and DNA methylation pattern of pluripotency genes, and of their potential for embryod body formation and differentiation into the three major germ layers. T3 induces reprogramming even though it increases expression of the cyclin kinase inhibitors p21 and p27, which are known to oppose acquisition of pluripotency. The actions of T3 on reprogramming are mainly mediated by the thyroid hormone receptor beta and T3 can enhance iPSC generation in the absence of c-Myc. The hormone cannot replace Oct4 on reprogramming, but in the presence of T3 is possible to obtain iPSCs, although with low efficiency, without exogenous Klf4. Furthermore, depletion of the corepressor NCoR (or Nuclear Receptor Corepressor 1) reduces MEFs reprogramming in the absence of the hormone and strongly decreases iPSC generation by T3 and also by 9cis-retinoic acid, a well-known inducer of reprogramming. NCoR depletion also markedly antagonizes induction of pluripotency gene expression by both ligands. Conclusions Inclusion of T3 on reprogramming strategies has a potential use in enhancing the generation of functional iPSCs for studies of cell plasticity, disease and regenerative medicine.
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Affiliation(s)
- Constanza Contreras-Jurado
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Departamento de Bioquímica, Facultad de Medicina, Universidad Alfonso X El Sabio, Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Montero-Pedrazuela
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Raúl F. Pérez
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología (CINN), CSIC-UNIOVI-Principado de Asturias, Oviedo, Spain
- Health Research Institute of Asturias (ISPA), Oviedo, Spain
- Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
- Department of Organisms and Systems Biology (BOS), University of Oviedo, Oviedo, Spain
- CIBER of Rare Diseases (CIBERER), Oviedo, Spain
| | - Susana Alemany
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Mario F. Fraga
- Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología (CINN), CSIC-UNIOVI-Principado de Asturias, Oviedo, Spain
- Health Research Institute of Asturias (ISPA), Oviedo, Spain
- Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
- Department of Organisms and Systems Biology (BOS), University of Oviedo, Oviedo, Spain
- CIBER of Rare Diseases (CIBERER), Oviedo, Spain
| | - Ana Aranda
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
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15
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Wang C, Song CM, Liu S, Chen LM, Xue SF, Huang SH, Lin H, Liu GH. ZFX-mediated upregulation of CEBPA-AS1 contributes to acute myeloid leukemia progression through miR-24-3p/CTBP2 axis. Cell Biol Toxicol 2023; 39:2631-2645. [PMID: 36715854 DOI: 10.1007/s10565-023-09792-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/17/2023] [Indexed: 01/31/2023]
Abstract
Emerging reports demonstrated that long non-coding RNAs (lncRNAs) play a role in the pathogenesis and metastasis of cancers. However, the biological functions and underlying mechanisms of LncRNA CEBPA-AS1 in acute myeloid leukemia (AML) remain largely elusive. The level of CEBPA-AS1 was examined in AML clinical tissues and cell lines via fluorescence in situ hybridization (FISH) and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). In vivo and in vitro functional tests were applied to identify the pro-oncogenic role of CEBPA-AS1 in AML development. The overexpressed CEBPA-AS1 was linked to poor survival in AML patients. Moreover, the relationships among CEBPA-AS1, Zinc Finger Protein X-Linked (ZFX), and miR-24-3p were predicted by bioinformatics and validated by RNA immunoprecipitation (RIP) and luciferase reporter assays. Our findings unveiled that transcription factor ZFX particularly interacted with the promoter of CEBPA-AS1 and activated CEBPA-AS1 transcription. Downregulation of CEBPA-AS1 inhibited the proliferation and invasion while promoted apoptosis of AML cells in in vitro, as well as in vivo, xenograft tumor growth was modified. However, overexpression of CEBPA-AS1 observed the opposite effects. Furthermore, CEBPA-AS1 acted as a competitive endogenous RNA (ceRNA) of miR-24-3p to attenuate the repressive effects of miR-24-3p on its downstream target CTBP2. Taken together, this study emphasized the pro-oncogenic role of CEBPA-AS1 in AML and illustrated its connections with the upstream transcription factor ZFX and the downstream regulative axis miR-24-3p/CTBP2, providing important insights to the cancerogenic process in AML.
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Affiliation(s)
- Chengyi Wang
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Chao-Min Song
- Department of Neonatology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Shan Liu
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Lu-Min Chen
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Shu-Fang Xue
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Si-Han Huang
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Han Lin
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China
- Fujian Children's Hospital, Fuzhou, China
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China
| | - Guang-Hua Liu
- Department of Pediatrics, Fujian Branch of Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Fuzhou, China.
- Fujian Children's Hospital, Fuzhou, China.
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, Fujian Province, China.
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16
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Kong R, Wei W, Man Q, Chen L, Jia Y, Zhang H, Liu Z, Cheng K, Mao C, Liu S. Hypoxia-induced circ-CDYL-EEF1A2 transcriptional complex drives lung metastasis of cancer stem cells from hepatocellular carcinoma. Cancer Lett 2023; 578:216442. [PMID: 37852428 DOI: 10.1016/j.canlet.2023.216442] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/24/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Hepatocellular carcinoma (HCC) is often associated with poor outcomes due to lung metastasis. ICAM-1+ circulating tumor cells, termed circulating cancer stem cells (CCSCs), possess stem cell-like characteristics. However, it is still unexplored how their presence indicates lung metastasis tendency, and particularly, what mechanism drives their lung metastasis. Here, we demonstrated that a preoperative CCSC count in 5 mL of blood (CCSC5) of >3 was a risk factor for lung metastasis in clinical HCC patients. The CSCs overexpressed with circ-CDYL entered the bloodstream and developed lung metastases in mice. Mechanistically, circ-CDYL promoted COL14A1 expression and thus ERK signaling to facilitate epithelial-mesenchymal transition. Furthermore, we uncovered that an RNA-binding protein, EEF1A2, acted as a novel transcriptional (co-) factor to cooperate with circ-CDYL and initiate COL14A1 transcription. A high circ-CDYL level is caused by HIF-1⍺-mediated transcriptional upregulation of its parental gene CDYL and splicing factor EIF4A3 under a hypoxia microenvironment. Hence, the hypoxia microenvironment enables the high-tendency lung metastasis of ICAM-1+ CCSCs through the HIF-1⍺/circ-CDYL-EEF1A2/COL14A1 axis, potentially allowing clinicians to preoperatively detect ICAM-1+ CCSCs as a real-time biomarker for precisely deciding HCC treatment strategies.
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Affiliation(s)
- Ruijiao Kong
- Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China; School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
| | - Wenxin Wei
- Clinical Research Institute and Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, 200438, China
| | - Qiuhong Man
- Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China
| | - Liang Chen
- Department of Laboratory and Diagnosis, Changhai Hospital, Naval Medical University, Shanghai, 200433, China; No. 904 Hospital of the PLA Joint Logistics Support Force, Wuxi, 214000, China
| | - Yin Jia
- Department of Laboratory and Diagnosis, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Hui Zhang
- Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China
| | - Zixin Liu
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Kai Cheng
- Department of Laboratory Medicine, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, 200433, China
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR, China; School of Materials Science & Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Shanrong Liu
- Department of Laboratory and Diagnosis, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
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17
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Chen JN, Jin JC, Guo J, Tao Y, Xu FH, Liu Q, Li X, Chang CK, Wu LY. The bcl6 corepressor mutation regulates the progression and transformation of myelodysplastic syndromes by repressing the autophagy flux. Int J Biochem Cell Biol 2023; 165:106480. [PMID: 37884171 DOI: 10.1016/j.biocel.2023.106480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 10/15/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
The occurrence of autophagy dysregulation is vital in the development of myelodysplastic syndrome and its transformation to acute myeloid leukemia. However, the mechanisms are largely unknown. Here, we have investigated the mechanism of the bcl6 corepressor mutation in myelodysplastic syndrome development and its transformation to acute myeloid leukemia. We identified a novel pathway involving histone deacetylase 6 and forkhead box protein O1, which leads to autophagy defects following the bcl6 corepressor mutation. And this further causes apoptosis and cell cycle arrest. The bcl6 corepressor-mutation-repressed autophagy resulted in the accumulation of damaged mitochondria, DNA, and reactive oxygen species in myelodysplastic syndrome cells, which could then lead to genomic instability and spontaneous mutation. Our results suggest that the bcl6 corepressor inactivating mutations exert pro-carcinogenic effects through survival strike, which is only an intermediate process. These findings provide mechanistic insights into the role of the bcl6 corepressor gene in myelodysplastic syndrome.
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Affiliation(s)
- Jia-Nan Chen
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Jia-Cheng Jin
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Juan Guo
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Ying Tao
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Fan-Huan Xu
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Qi Liu
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Xiao Li
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Chun-Kang Chang
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China
| | - Ling-Yun Wu
- Department of Hematology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200000, China.
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Zhang Z, Hu Q, Gao Z, Zhu Y, Yin M, Shang E, Liu G, Liu W, Hu R, Cheng H, Chong X, Guan Z, Fang W, Chen S, Sun B, He Y, Chen F, Jiang J. Flowering repressor CmSVP recruits the TOPLESS corepressor to control flowering in chrysanthemum. Plant Physiol 2023; 193:2413-2429. [PMID: 37647542 DOI: 10.1093/plphys/kiad476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 07/10/2023] [Accepted: 07/23/2023] [Indexed: 09/01/2023]
Abstract
Plant flowering time is induced by environmental and endogenous signals perceived by the plant. The MCM1-AGAMOUSDEFICIENS-Serum Response Factor-box (MADS-box) protein SHORT VEGETATIVE PHASE (SVP) is a pivotal repressor that negatively regulates the floral transition during the vegetative phase; however, the transcriptional regulatory mechanism remains poorly understood. Here, we report that CmSVP, a chrysanthemum (Chrysanthemum morifolium Ramat.) homolog of SVP, can repress the expression of a key flowering gene, a chrysanthemum FLOWERING LOCUS T-like gene (CmFTL3), by binding its promoter CArG element to delay flowering in the ambient temperature pathway in chrysanthemum. Protein-protein interaction assays identified an interaction between CmSVP and CmTPL1-2, a chrysanthemum homologue of TOPLESS (TPL) that plays critical roles as transcriptional corepressor in many aspects of plant life. Genetic analyses revealed the CmSVP-CmTPL1-2 transcriptional complex is a prerequisite for CmSVP to act as a floral repressor. Furthermore, overexpression of CmSVP rescued the phenotype of the svp-31 mutant in Arabidopsis (Arabidopsis thaliana), overexpression of AtSVP or CmSVP in the Arabidopsis dominant-negative mutation tpl-1 led to ineffective late flowering, and AtSVP interacted with AtTPL, confirming the conserved function of SVP in chrysanthemum and Arabidopsis. We have validated a conserved machinery wherein SVP partially relies on TPL to inhibit flowering via a thermosensory pathway.
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Affiliation(s)
- Zixin Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qian Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zheng Gao
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing 100871, China
| | - Yuqing Zhu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mengru Yin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Erlei Shang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Gaofeng Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Weixin Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - RongQian Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Hua Cheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinran Chong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhiyong Guan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, Jiangsu 210014, China
| | - Weimin Fang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, Jiangsu 210014, China
| | - Sumei Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, Jiangsu 210014, China
| | - Bo Sun
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Yuehui He
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agriculture Sciences, Peking University, Beijing 100871, China
| | - Fadi Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, Jiangsu 210014, China
| | - Jiafu Jiang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of State Forestry and Grassland Administration on Biology of Ornamental Plants in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Zhongshan Biological Breeding Laboratory, Nanjing, Jiangsu 210014, China
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19
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Lambert C, d'Orfani A, Gaillard M, Zhang Q, Gloux K, Poyart C, Fouet A. Acyl-AcpB, a FabT corepressor in Streptococcus pyogenes. J Bacteriol 2023; 205:e0027423. [PMID: 37811985 PMCID: PMC10601718 DOI: 10.1128/jb.00274-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 10/10/2023] Open
Abstract
Membranes are a universal barrier to all cells. Phospholipids, essential bacterial membrane components, are composed of a polar head and apolar fatty acid (FA) chains. Most bacterial FAs are synthesized by the Type II FA synthesis pathway (FASII). In Streptococcaceae, Enterococci, and Lactococcus lactis, a unique feedback mechanism controls the FASII gene expression. FabT, encoded in the FASII main locus, is the repressor, and it is activated by long-chain acyl-acyl carrier protein (acyl-ACP). Many Streptococci, Enterococcus faecalis, but not L. lactis, possess two ACPs. The AcpA-encoding gene is within the FASII locus and is coregulated with the FASII genes. Acyl-AcpA is the end product of FASII. The AcpB-encoding gene is in operon with plsX encoding an acyl-ACP:phosphate acyltransferase. The role of acyl-AcpB as FabT corepressor is controversial. Streptococcus pyogenes, which causes a wide variety of diseases ranging from mild non-invasive to severe invasive infections, possesses AcpB. In this study, by comparing the expression of FabT-controlled genes in an acpB-deleted mutant with those in a wild-type and in a fabT mutant strain, grown in the presence or absence of exogenous FAs, we show that AcpB is the S. pyogenes FabT main corepressor. Its deletion impacts membrane FA composition and bacterial adhesion to eucaryotic cells, highlighting the importance of FASII control. Importance Membrane composition is crucial for bacterial growth or interaction with the environment. Bacteria synthesize fatty acids (FAs), membrane major constituents, via the Type II FAS (FASII) pathway. Streptococci control the expression of the FASII genes via a transcriptional repressor, FabT, with acyl-acyl carrier proteins (ACPs) as corepressor. Streptococcus pyogenes that causes a wide variety of diseases ranging from mild non-invasive to severe invasive infections possesses two ACPs. acpA, but not acpB, is a FASII gene. In this study, we show that acyl-AcpBs are FabT main corepressors. Also, AcpB deletion has consequences on the membrane FA composition and bacterial adhesion to host cells. In addition to highlighting the importance of FASII control in the presence of exogeneous FAs for the adaptation of bacteria to their environment, our data indicate that FASII gene repression is mediated by a corepressor whose gene expression is not repressed in the presence of exogenous FAs.
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Affiliation(s)
- Clara Lambert
- Université Paris Cité, Institut Cochin, Paris, France
| | | | | | - Qiufen Zhang
- Université Paris Cité, Institut Cochin, Paris, France
| | - Karine Gloux
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Claire Poyart
- Université Paris Cité, Institut Cochin, Paris, France
- AP-HP Centre-Université Paris Cité, Paris, France
| | - Agnes Fouet
- Université Paris Cité, Institut Cochin, Paris, France
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20
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Li K, Chen J, Zhang C, Cheng M, Chen S, Song W, Yang C, Ling R, Chen Z, Wang X, Xiong G, Ma J, Zhu Y, Yuan Q, Liu Q, Peng L, Chen Q, Chen D. The CTBP2-PCIF1 complex regulates m6Am modification of mRNA in head and neck squamous cell carcinoma. J Clin Invest 2023; 133:e170173. [PMID: 37643007 PMCID: PMC10575729 DOI: 10.1172/jci170173] [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: 03/01/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
PCIF1 can mediate the methylation of N6,2'-O-dimethyladenosine (m6Am) in mRNA. Yet, the detailed interplay between PCIF1 and the potential cofactors and its pathological significance remain elusive. Here, we demonstrated that PCIF1-mediated cap mRNA m6Am modification promoted head and neck squamous cell carcinoma progression both in vitro and in vivo. CTBP2 was identified as a cofactor of PCIF1 to catalyze m6Am deposition on mRNA. CLIP-Seq data demonstrated that CTBP2 bound to similar mRNAs as compared with PCIF1. We then used the m6Am-Seq method to profile the mRNA m6Am site at single-base resolution and found that mRNA of TET2, a well-known tumor suppressor, was a major target substrate of the PCIF1-CTBP2 complex. Mechanistically, knockout of CTBP2 reduced PCIF1 occupancy on TET2 mRNA, and the PCIF1-CTBP2 complex negatively regulated the translation of TET2 mRNA. Collectively, our study demonstrates the oncogenic function of the epitranscriptome regulator PCIF1-CTBP2 complex, highlighting the importance of the m6Am modification in tumor progression.
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Affiliation(s)
- Kang Li
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jie Chen
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Caihua Zhang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Maosheng Cheng
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shuang Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Song
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chunlong Yang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rongsong Ling
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Zhi Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaochen Wang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Gan Xiong
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jieyi Ma
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Zhu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qi Liu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-construction by Ministry and Province), Guangzhou, China
| | - Liang Peng
- Senior Department of Oncology, The Fifth Medical Center of PLA General Hospital, Fengtai District, Beijing, China
| | - Qianming Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Demeng Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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21
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Abe Y, Kofman ER, Almeida M, Ouyang Z, Ponte F, Mueller JR, Cruz-Becerra G, Sakai M, Prohaska TA, Spann NJ, Resende-Coelho A, Seidman JS, Stender JD, Taylor H, Fan W, Link VM, Cobo I, Schlachetzki JCM, Hamakubo T, Jepsen K, Sakai J, Downes M, Evans RM, Yeo GW, Kadonaga JT, Manolagas SC, Rosenfeld MG, Glass CK. RANK ligand converts the NCoR/HDAC3 co-repressor to a PGC1β- and RNA-dependent co-activator of osteoclast gene expression. Mol Cell 2023; 83:3421-3437.e11. [PMID: 37751740 PMCID: PMC10591845 DOI: 10.1016/j.molcel.2023.08.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/17/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023]
Abstract
The nuclear receptor co-repressor (NCoR) complex mediates transcriptional repression dependent on histone deacetylation by histone deacetylase 3 (HDAC3) as a component of the complex. Unexpectedly, we found that signaling by the receptor activator of nuclear factor κB (RANK) converts the NCoR/HDAC3 co-repressor complex to a co-activator of AP-1 and NF-κB target genes that are required for mouse osteoclast differentiation. Accordingly, the dominant function of NCoR/HDAC3 complexes in response to RANK signaling is to activate, rather than repress, gene expression. Mechanistically, RANK signaling promotes RNA-dependent interaction of the transcriptional co-activator PGC1β with the NCoR/HDAC3 complex, resulting in the activation of PGC1β and inhibition of HDAC3 activity for acetylated histone H3. Non-coding RNAs Dancr and Rnu12, which are associated with altered human bone homeostasis, promote NCoR/HDAC3 complex assembly and are necessary for RANKL-induced osteoclast differentiation in vitro. These findings may be prototypic for signal-dependent functions of NCoR in other biological contexts.
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Affiliation(s)
- Yohei Abe
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Eric R Kofman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Maria Almeida
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Zhengyu Ouyang
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Filipa Ponte
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jasmine R Mueller
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Grisel Cruz-Becerra
- Department of Molecular Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Mashito Sakai
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Biochemistry and Molecular Biology, Nippon Medical School Hospital, Tokyo 113-8602, Japan
| | - Thomas A Prohaska
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Nathanael J Spann
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Ana Resende-Coelho
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jason S Seidman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Joshua D Stender
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Havilah Taylor
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Weiwei Fan
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Verena M Link
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Faculty of Biology, Department II, Ludwig-Maximilians Universität München, Planegg-Martinsried 82152, Germany
| | - Isidoro Cobo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Johannes C M Schlachetzki
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Takao Hamakubo
- Department of Protein-Protein Interaction Research, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo 113-8602, Japan
| | - Kristen Jepsen
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan; Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ronald M Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Gene W Yeo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - James T Kadonaga
- Department of Molecular Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Michael G Rosenfeld
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA.
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22
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Sanadgol N, Amini J, Beyer C, Zendedel A. Presenilin-1-Derived Circular RNAs: Neglected Epigenetic Regulators with Various Functions in Alzheimer's Disease. Biomolecules 2023; 13:1401. [PMID: 37759801 PMCID: PMC10527059 DOI: 10.3390/biom13091401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/28/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
The presenilin-1 (PSEN1) gene is crucial in developing Alzheimer's disease (AD), a progressive neurodegenerative disorder and the most common cause of dementia. Circular RNAs (circRNAs) are non-coding RNA generated through back-splicing, resulting in a covalently closed circular molecule. This study aimed to investigate PSEN1-gene-derived circular RNAs (circPSEN1s) and their potential functions in AD. Our in silico analysis indicated that circPSEN1s (hsa_circ_0008521 and chr14:73614502-73614802) act as sponge molecules for eight specific microRNAs. Surprisingly, two of these miRNAs (has-mir-4668-5p and has-mir-5584-5p) exclusively interact with circPSEN1s rather than mRNA-PSEN1. Furthermore, the analysis of pathways revealed that these two miRNAs predominantly target mRNAs associated with the PI3K-Akt signaling pathway. With sponging these microRNAs, circPSEN1s were found to protect mRNAs commonly targeted by these miRNAs, including QSER1, BACE2, RNF157, PTMA, and GJD3. Furthermore, the miRNAs sequestered by circPSEN1s have a notable preference for targeting the TGF-β and Hippo signaling pathways. We also demonstrated that circPSEN1s potentially interact with FOXA1, ESR1, HNF1B, BRD4, GATA4, EP300, CBX3, PRDM9, and PPARG proteins. These proteins have a prominent preference for targeting the TGF-β and Notch signaling pathways, where EP300 and FOXA1 have the highest number of protein interactions. Molecular docking analysis also confirms the interaction of these hub proteins and Aβ42 with circPSEN1s. Interestingly, circPSEN1s-targeted molecules (miRNAs and proteins) impacted TGF-β, which served as a shared signaling pathway. Finally, the analysis of microarray data unveiled distinct expression patterns of genes influenced by circPSEN1s (WTIP, TGIF, SMAD4, PPP1CB, and BMPR1A) in the brains of AD patients. In summary, our findings suggested that the interaction of circPSEN1s with microRNAs and proteins could affect the fate of specific mRNAs, interrupt the function of unique proteins, and influence cell signaling pathways, generally TGF-β. Further research is necessary to validate these findings and gain a deeper understanding of the precise mechanisms and significance of circPSEN1s in the context of AD.
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Affiliation(s)
- Nima Sanadgol
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Javad Amini
- Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 94149-75516, Iran
| | - Cordian Beyer
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Adib Zendedel
- Department of Biomedicine, Institut of Anatomy, University of Basel, 4031 Basel, Switzerland
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23
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Wang W, Wang C, Wang Y, Ma J, Wang T, Tao Z, Liu P, Li S, Hu Y, Gu A, Wang H, Qiu C, Li P. The P-body component DECAPPING5 and the floral repressor SISTER OF FCA regulate FLOWERING LOCUS C transcription in Arabidopsis. Plant Cell 2023; 35:3303-3324. [PMID: 37220754 PMCID: PMC10473201 DOI: 10.1093/plcell/koad151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/28/2023] [Accepted: 04/30/2023] [Indexed: 05/25/2023]
Abstract
Flowering is the transition from vegetative to reproductive growth and is critical for plant adaptation and reproduction. FLOWERING LOCUS C (FLC) plays a central role in flowering time control, and dissecting its regulation mechanism provides essential information for crop improvement. Here, we report that DECAPPING5 (DCP5), a component of processing bodies (P-bodies), regulates FLC transcription and flowering time in Arabidopsis (Arabidopsis thaliana). DCP5 and its interacting partner SISTER OF FCA (SSF) undergo liquid-liquid phase separation (LLPS) that is mediated by their prion-like domains (PrDs). Enhancing or attenuating the LLPS of both proteins using transgenic methods greatly affects their ability to regulate FLC and flowering time. DCP5 regulates FLC transcription by modulating RNA polymerase II enrichment at the FLC locus. DCP5 requires SSF for FLC regulation, and loss of SSF or its PrD disrupts DCP5 function. Our results reveal that DCP5 interacts with SSF, and the nuclear DCP5-SSF complex regulates FLC expression at the transcriptional level.
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Affiliation(s)
- Wanyi Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Chuanhong Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Yunhe Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Jing Ma
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Tengyue Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Zhen Tao
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Peipei Liu
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Shuai Li
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Yuanyuan Hu
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Aiju Gu
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Hui Wang
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Chunhong Qiu
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Peijin Li
- The National Engineering Lab of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
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Sun C, Qi Y, Fowlkes N, Lazic N, Su X, Lozano G, Wasylishen AR. The histone chaperone function of Daxx is dispensable for embryonic development. Cell Death Dis 2023; 14:565. [PMID: 37633949 PMCID: PMC10460429 DOI: 10.1038/s41419-023-06089-0] [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: 01/05/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
Daxx functions as a histone chaperone for the histone H3 variant, H3.3, and is essential for embryonic development. Daxx interacts with Atrx to form a protein complex that deposits H3.3 into heterochromatic regions of the genome, including centromeres, telomeres, and repeat loci. To advance our understanding of histone chaperone activity in vivo, we developed two Daxx mutant alleles in the mouse germline, which abolish the interactions between Daxx and Atrx (DaxxY130A), and Daxx and H3.3 (DaxxS226A). We found that the interaction between Daxx and Atrx is dispensable for viability; mice are born at the expected Mendelian ratio and are fertile. The loss of Daxx-Atrx interaction, however, does cause dysregulated expression of endogenous retroviruses. In contrast, the interaction between Daxx and H3.3, while not required for embryonic development, is essential for postnatal viability. Transcriptome analysis of embryonic tissues demonstrates that this interaction is important for silencing endogenous retroviruses and for maintaining proper immune cell composition. Overall, these results clearly demonstrate that Daxx has both Atrx-dependent and independent functions in vivo, advancing our understanding of this epigenetic regulatory complex.
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Affiliation(s)
- Chang Sun
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
- Genetics and Epigenetics Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, 77030, USA
| | - Yuan Qi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Nina Lazic
- Department of Cancer Biology, University of Cincinnati, Cincinnati, OH, 45267, USA
| | - Xiaoping Su
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Guillermina Lozano
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
- Genetics and Epigenetics Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
| | - Amanda R Wasylishen
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
- Department of Cancer Biology, University of Cincinnati, Cincinnati, OH, 45267, USA.
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25
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Kumar P, Zehra A, Saini M, Mathew SJ. Zeb1 and Tle3 are trans-factors that differentially regulate the expression of myosin heavy chain-embryonic and skeletal muscle differentiation. FASEB J 2023; 37:e23074. [PMID: 37392376 PMCID: PMC7615532 DOI: 10.1096/fj.202201698rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 07/03/2023]
Abstract
Myosin heavy chain-embryonic encoded by the Myh3 gene is a skeletal muscle-specific contractile protein expressed during mammalian development and regeneration, essential for proper myogenic differentiation and function. It is likely that multiple trans-factors are involved in this precise temporal regulation of Myh3 expression. We identify a 4230 bp promoter-enhancer region that drives Myh3 transcription in vitro during C2C12 myogenic differentiation and in vivo during muscle regeneration, including sequences both upstream and downstream of the Myh3 TATA-box that are necessary for complete Myh3 promoter activity. Using C2C12 mouse myogenic cells, we find that Zinc-finger E-box binding homeobox 1 (Zeb1) and Transducin-like Enhancer of Split 3 (Tle3) proteins are crucial trans-factors that interact and differentially regulate Myh3 expression. Loss of Zeb1 function results in earlier expression of myogenic differentiation genes and accelerated differentiation, whereas Tle3 depletion leads to reduced expression of myogenic differentiation genes and impaired differentiation. Tle3 knockdown resulted in downregulation of Zeb1, which could be mediated by increased expression of miR-200c, a microRNA that binds to Zeb1 transcript and degrades it. Tle3 functions upstream of Zeb1 in regulating myogenic differentiation since double knockdown of Zeb1 and Tle3 resulted in effects seen upon Tle3 depletion. We identify a novel E-box in the Myh3 distal promoter-enhancer region, where Zeb1 binds to repress Myh3 expression. In addition to regulation of myogenic differentiation at the transcriptional level, we uncover post-transcriptional regulation by Tle3 to regulate MyoG expression, mediated by the mRNA stabilizing Human antigen R (HuR) protein. Thus, Tle3 and Zeb1 are essential trans-factors that differentially regulate Myh3 expression and C2C12 cell myogenic differentiation in vitro.
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Affiliation(s)
- Pankaj Kumar
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, Faridabad, India
- Affiliated to Manipal Academy of Higher Education (MAHE), Manipal University, Manipal, India
- Developmental Genetics—III, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Aatifa Zehra
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, Faridabad, India
| | - Masum Saini
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, Faridabad, India
| | - Sam J. Mathew
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, Faridabad, India
- Affiliated to Manipal Academy of Higher Education (MAHE), Manipal University, Manipal, India
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26
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Hu Y, Bruinstroop E, Hollenberg AN, Fliers E, Boelen A. The role of WD40 repeat-containing proteins in endocrine (dys)function. J Mol Endocrinol 2023; 71:e220217. [PMID: 37256579 DOI: 10.1530/jme-22-0217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/01/2023]
Abstract
WD40 repeat-containing proteins play a key role in many cellular functions including signal transduction, protein degradation, and apoptosis. The WD40 domain is highly conserved, and its typical structure is a β-propeller consisting of 4-8 blades which probably serves as a scaffold for protein-protein interaction. Some WD40 repeat-containing proteins form part of the corepressor complex of nuclear hormone receptors, a family of ligand-dependent transcription factors that play a central role in the regulation of gene transcription. This explains their involvement in endocrine physiology and pathology. In the present review, we first touch upon the structure of WD40 repeat-containing proteins. Next, we describe our current understanding of the role of WD40 domain-containing proteins in nuclear receptor signaling, e.g., as corepressor or coactivator. In the final part of this review, we focus on WD40 domain-containing proteins that are associated with endocrine pathologies. These pathologies vary from isolated dysfunction of one endocrine axis, e.g., congenital isolated central hypothyroidism, to more complex congenital syndromes comprising endocrine phenotypes, such as the Triple-A syndrome.
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Affiliation(s)
- Yalan Hu
- Endocrine Laboratory, Department of Clinical Chemistry, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Eveline Bruinstroop
- Department of Endocrinology, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Anthony N Hollenberg
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Eric Fliers
- Department of Endocrinology, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Anita Boelen
- Endocrine Laboratory, Department of Clinical Chemistry, Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
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27
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Rodriguez Pena MDC, Mubeen A, Harada S, Prieto Granada CN. An Unusual Benign Uterine Stromal Spindle Cell Tumor Harboring JAZF1::BCORL1. Int J Gynecol Pathol 2023; 42:319-324. [PMID: 35838627 DOI: 10.1097/pgp.0000000000000894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Uterine mesenchymal lesions demonstrate various underlying genomic alterations involving MED12 , JAZF1 , YWHAE , BCOR , and ALK genes, among others. Recent publications describe a subset of high-grade endometrial stromal sarcoma lesions harboring BCORL1 gene aberrations including JAZF1::BCORL1 . Herein, we present an unusual benign endomyometrial spindle cell lesion that defies classificatory efforts by demonstrating mixed histomorphologic and immunohistochemical features of endometrial stromal nodule, leiomyoma, and uterine inflammatory myofibroblastic tumor while harboring a JAZF1::BCORL1 . The lesion was found in a 43-yr-old woman with pelvic pain and heavy menses as a 5.5 cm well-circumscribed ulcerated mass fungating from the cervical os. Microscopic examination revealed a polypoid, well-circumscribed, moderately cellular endomyometrial tumor composed by bland spindle cells haphazardly disposed within a slightly edematous stroma enriched by a delicate network of thin-walled vessels that were occasionally encircled by the tumor cells. Unequivocal evidence of tongue-like growth pattern into the myometrium, tumor-type necrosis or increased mitotic activity was not identified after sampling the entire lesion. The lesion showed patchy immunoreactivity for both smooth muscle actin-alpha and desmin while negative for CD10, HMB45, ALK (D5F3), and BCOR. An Archer FusionPlex panel assay demonstrated a fusion involving both exons 4 from the JAZF1 and BCORL1 genes. The JAZF1::BCORL1 has not, to the best of our knowledge, been previously reported in a benign/low-grade mesenchymal uterine lesion.
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28
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Liu F, Rossoll W. The DAXX tax: C9orf72 DNA repeat expansions drive gain- and loss-of-function pathology in c9FTD/ALS. Neuron 2023; 111:1165-1167. [PMID: 37080165 DOI: 10.1016/j.neuron.2023.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 04/22/2023]
Abstract
In this issue of Neuron, Liu et al.1 identify DAXX as a C9orf72 hexanucleotide repeat expansion DNA-binding protein that initiates epigenetic modifications and chromatin remodeling, contributing to C9orf72 haploinsufficiency by inhibiting its stress-inducible expression and mediating both loss- and toxic gain-of-function pathology.
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Affiliation(s)
- Feilin Liu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Wilfried Rossoll
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
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Carraro M, Hendriks IA, Hammond CM, Solis-Mezarino V, Völker-Albert M, Elsborg JD, Weisser MB, Spanos C, Montoya G, Rappsilber J, Imhof A, Nielsen ML, Groth A. DAXX adds a de novo H3.3K9me3 deposition pathway to the histone chaperone network. Mol Cell 2023; 83:1075-1092.e9. [PMID: 36868228 PMCID: PMC10114496 DOI: 10.1016/j.molcel.2023.02.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [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: 01/30/2022] [Revised: 11/29/2022] [Accepted: 02/08/2023] [Indexed: 03/05/2023]
Abstract
A multitude of histone chaperones are required to support histones from their biosynthesis until DNA deposition. They cooperate through the formation of histone co-chaperone complexes, but the crosstalk between nucleosome assembly pathways remains enigmatic. Using exploratory interactomics, we define the interplay between human histone H3-H4 chaperones in the histone chaperone network. We identify previously uncharacterized histone-dependent complexes and predict the structure of the ASF1 and SPT2 co-chaperone complex, expanding the role of ASF1 in histone dynamics. We show that DAXX provides a unique functionality to the histone chaperone network, recruiting histone methyltransferases to promote H3K9me3 catalysis on new histone H3.3-H4 prior to deposition onto DNA. Hereby, DAXX provides a molecular mechanism for de novo H3K9me3 deposition and heterochromatin assembly. Collectively, our findings provide a framework for understanding how cells orchestrate histone supply and employ targeted deposition of modified histones to underpin specialized chromatin states.
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Affiliation(s)
- Massimo Carraro
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ivo A Hendriks
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Colin M Hammond
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | | | | | - Jonas D Elsborg
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Melanie B Weisser
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christos Spanos
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK; Technische Universität Berlin, Chair of Bioanalytics, Berlin, Germany
| | - Guillermo Montoya
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Juri Rappsilber
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK; Technische Universität Berlin, Chair of Bioanalytics, Berlin, Germany
| | - Axel Imhof
- EpiQMAx GmbH, Planegg, Germany; Faculty of Medicine, Biomedical Center, Protein Analysis Unit, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Michael L Nielsen
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Anja Groth
- Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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30
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Anstine LJ, Majmudar PR, Aponte A, Singh S, Zhao R, Weber-Bonk KL, Abdul-Karim FW, Valentine M, Seachrist DD, Grennel-Nickelson KE, Cuellar-Vite L, Sizemore GM, Sizemore ST, Webb BM, Thompson CL, Keri RA. TLE3 Sustains Luminal Breast Cancer Lineage Fidelity to Suppress Metastasis. Cancer Res 2023; 83:997-1015. [PMID: 36696357 PMCID: PMC10089698 DOI: 10.1158/0008-5472.can-22-3133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/28/2022] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
Breast cancer subtypes and their phenotypes parallel different stages of the mammary epithelial cell developmental hierarchy. Discovering mechanisms that control lineage identity could provide novel avenues for mitigating disease progression. Here we report that the transcriptional corepressor TLE3 is a guardian of luminal cell fate in breast cancer and operates independently of the estrogen receptor. In luminal breast cancer, TLE3 actively repressed the gene-expression signature associated with highly aggressive basal-like breast cancers (BLBC). Moreover, maintenance of the luminal lineage depended on the appropriate localization of TLE3 to its transcriptional targets, a process mediated by interactions with FOXA1. By repressing genes that drive BLBC phenotypes, including SOX9 and TGFβ2, TLE3 prevented the acquisition of a hybrid epithelial-mesenchymal state and reduced metastatic capacity and aggressive cellular behaviors. These results establish TLE3 as an essential transcriptional repressor that sustains the more differentiated and less metastatic nature of luminal breast cancers. Approaches to induce TLE3 expression could promote the acquisition of less aggressive, more treatable disease states to extend patient survival. SIGNIFICANCE Transcriptional corepressor TLE3 actively suppresses SOX9 and TGFβ transcriptional programs to sustain the luminal lineage identity of breast cancer cells and to inhibit metastatic progression.
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Affiliation(s)
- Lindsey J. Anstine
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Parth R. Majmudar
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
| | - Amy Aponte
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
| | - Salendra Singh
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Ran Zhao
- Department of Qualitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Kristen L. Weber-Bonk
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Fadi W. Abdul-Karim
- Department of Pathology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Mitchell Valentine
- Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio
| | - Darcie D. Seachrist
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | | | - Leslie Cuellar-Vite
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
| | - Gina M. Sizemore
- Department of Radiation Oncology and the James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Steven T. Sizemore
- Department of Radiation Oncology and the James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Bryan M. Webb
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Cheryl L. Thompson
- Department of Public Health Sciences and the Penn State Cancer Institute, Hershey, Pennsylvania
| | - Ruth A. Keri
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
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31
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Falcinelli M, Dell'Omo G, Grassi E, Mariella E, Leto SM, Scardellato S, Lorenzato A, Arena S, Bertotti A, Trusolino L, Bardelli A, d'Adda di Fagagna F. Colorectal cancer patient-derived organoids and cell lines harboring ATRX and/or DAXX mutations lack Alternative Lengthening of Telomeres (ALT). Cell Death Dis 2023; 14:96. [PMID: 36759506 PMCID: PMC9911751 DOI: 10.1038/s41419-023-05640-3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023]
Abstract
Telomere maintenance is necessary to maintain cancer cell unlimited viability. However, the mechanisms maintaining telomere length in colorectal cancer (CRC) have not been extensively investigated. Telomere maintenance mechanisms (TMM) include the re-expression of telomerase or alternative lengthening of telomeres (ALT). ALT is genetically associated with somatic alterations in alpha-thalassemia/mental retardation X-linked (ATRX) and death domain-associated protein (DAXX) genes. Cells displaying ALT present distinctive features including C-circles made of telomeric DNA, long and heterogenous telomeric tracts, and telomeric DNA co-localized with promyelocytic leukemia (PML) bodies forming so-called ALT-associated PML bodies (APBs). Here, we identified mutations in ATRX and/or DAXX genes in an extensive collection of CRC samples including 119 patient-derived organoids (PDOs) and 232 established CRC cell lines. C-circles measured in CRC PDOs and cell lines showed low levels overall. We also observed that CRC PDOs and cell lines did not display a significant accumulation of APBs or long telomeres with no appreciable differences between wild-type and mutated ATRX/DAXX samples. Overall, our extensive analyses indicate that CRC is not prone to engage ALT, even when carrying genetic lesions in ATRX and/or DAXX, and support the notion that ATRX/DAXX genomic footprints are not reliable predictors of ALT.
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Affiliation(s)
- Marta Falcinelli
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Giulia Dell'Omo
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Elena Grassi
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Elisa Mariella
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | | | | | - Annalisa Lorenzato
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Sabrina Arena
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Andrea Bertotti
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Livio Trusolino
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Alberto Bardelli
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
- Department of Oncology, University of Torino, 1060 Candiolo, Torino, Italy
- Candiolo Cancer Institute - FPO IRCCs, 10060 Candiolo, Torino, Italy
| | - Fabrizio d'Adda di Fagagna
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy.
- Institute of Molecular Genetics IGM-CNR "Luigi Luca Cavalli-Sforza", Pavia, Italy.
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32
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Raicu AM, Kadiyala D, Niblock M, Jain A, Yang Y, Bird KM, Bertholf K, Seenivasan A, Siddiq M, Arnosti DN. The Cynosure of CtBP: Evolution of a Bilaterian Transcriptional Corepressor. Mol Biol Evol 2023; 40:msad003. [PMID: 36625090 PMCID: PMC9907507 DOI: 10.1093/molbev/msad003] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 12/16/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Evolution of sequence-specific transcription factors clearly drives lineage-specific innovations, but less is known about how changes in the central transcriptional machinery may contribute to evolutionary transformations. In particular, transcriptional regulators are rich in intrinsically disordered regions that appear to be magnets for evolutionary innovation. The C-terminal Binding Protein (CtBP) is a transcriptional corepressor derived from an ancestral lineage of alpha hydroxyacid dehydrogenases; it is found in mammals and invertebrates, and features a core NAD-binding domain as well as an unstructured C-terminus (CTD) of unknown function. CtBP can act on promoters and enhancers to repress transcription through chromatin-linked mechanisms. Our comparative phylogenetic study shows that CtBP is a bilaterian innovation whose CTD of about 100 residues is present in almost all orthologs. CtBP CTDs contain conserved blocks of residues and retain a predicted disordered property, despite having variations in the primary sequence. Interestingly, the structure of the C-terminus has undergone radical transformation independently in certain lineages including flatworms and nematodes. Also contributing to CTD diversity is the production of myriad alternative RNA splicing products, including the production of "short" tailless forms of CtBP in Drosophila. Additional diversity stems from multiple gene duplications in vertebrates, where up to five CtBP orthologs have been observed. Vertebrate lineages show fewer major modifications in the unstructured CTD, possibly because gene regulatory constraints of the vertebrate body plan place specific constraints on this domain. Our study highlights the rich regulatory potential of this previously unstudied domain of a central transcriptional regulator.
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Affiliation(s)
- Ana-Maria Raicu
- Cell and Molecular Biology Program, Michigan State University, East Lansing, Michigan
| | - Dhruva Kadiyala
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
| | - Madeline Niblock
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
| | | | - Yahui Yang
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
| | - Kalynn M Bird
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
| | - Kayla Bertholf
- Biochemistry and Molecular Biology Program, College of Wooster
| | - Akshay Seenivasan
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
| | - Mohammad Siddiq
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan
| | - David N Arnosti
- Cell and Molecular Biology Program, Michigan State University, East Lansing, Michigan
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan
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33
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Siouda M, Dujardin AD, Dekeyzer B, Schaeffer L, Mulligan P. Chromodomain on Y-like 2 (CDYL2) implicated in mitosis and genome stability regulation via interaction with CHAMP1 and POGZ. Cell Mol Life Sci 2023; 80:47. [PMID: 36658409 DOI: 10.1007/s00018-022-04659-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 01/21/2023]
Abstract
Histone H3 trimethylation on lysine 9 (H3K9me3) is a defining feature of mammalian pericentromeres, loss of which results in genome instability. Here we show that CDYL2 is recruited to pericentromeres in an H3K9me3-dependent manner and is required for faithful mitosis and genome stability. CDYL2 RNAi in MCF-7 breast cancer cells and Hela cervical cancer cells inhibited their growth, induced apoptosis, and provoked both nuclear and mitotic aberrations. Mass spectrometry analysis of CDYL2-interacting proteins identified the neurodevelopmental disease-linked mitotic regulators CHAMP1 and POGZ, which are associated with a central non-conserved region of CDYL2. RNAi rescue assays identified both the CDYL2 chromodomain and the CHAMP1-POGZ interacting region as required and, together, sufficient for CDYL2 regulation of mitosis and genome stability. CDYL2 RNAi caused loss of CHAMP1 localization at pericentromeres. We propose that CDYL2 functions as an adaptor protein that connects pericentromeric H3K9me3 with CHAMP1 and POGZ to ensure mitotic fidelity and genome stability.
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Affiliation(s)
- Maha Siouda
- Centre Léon Bérard, Cancer Research Center of Lyon, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Audrey D Dujardin
- Centre Léon Bérard, Cancer Research Center of Lyon, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Blanche Dekeyzer
- Centre Léon Bérard, Cancer Research Center of Lyon, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France
| | - Laurent Schaeffer
- Faculté de Médecine, Physiopathology and Genetics of Neurons and Muscles Division, Institut NeuroMyoGène, Université Claude Bernard Lyon 1, Université de Lyon, INSERM U1217, CNRS, UMR5310, 3ème étage, Aile B, 8 Avenue Rockefeller, 69008, Lyon, France
- Centre de Biotechnologie Cellulaire, CBC Biotec, CHU de Lyon - HCL Groupement Est, 59 Bvd Pinel, 69677, Cedex Bron, France
| | - Peter Mulligan
- Centre Léon Bérard, Cancer Research Center of Lyon, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Lyon, France.
- Faculté de Médecine, Physiopathology and Genetics of Neurons and Muscles Division, Institut NeuroMyoGène, Université Claude Bernard Lyon 1, Université de Lyon, INSERM U1217, CNRS, UMR5310, 3ème étage, Aile B, 8 Avenue Rockefeller, 69008, Lyon, France.
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Krasnytska DO, Viletska YM, Minchenko DO, Khita OO, Tsymbal DO, Cherednychenko AA, Kozynkevych HE, Oksiom NS, Minchenko OH. ERN1 dependent impact of glucose and glutamine deprivations on PBX3, PBXIP1, PAX6, MEIS1, and MEIS2 genes expression in U87 glioma cells. Endocr Regul 2023; 57:37-47. [PMID: 36753664 DOI: 10.2478/enr-2023-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
Objective. Homeobox genes play a fundamental role in the embryogenesis, but some of them have been linked to oncogenesis. The present study is aimed to investigate the impact of glucose and glutamine deprivations on the expression of homeobox genes such as PAX6 (paired box 6), PBX3 (PBX homeobox 3), PBXIP1 (PBX homeobox interacting protein 1), MEIS1 (MEIS homeobox 1), and MEIS2 in ERN1 knockdown U87 glioma cells with the intent to reveal the role of ERN1 (endoplasmic reticulum to nucleus signaling 1) signaling pathway on the endoplasmic reticulum stress dependent regulation of homeobox genes. Methods. The control (transfected by empty vector) and ERN1 knockdown (transfected by dominant-negative ERN1) U87 glioma cells were exposed to glucose and glutamine deprivations for 24 h. The cells RNA was extracted and reverse transcribed. The expression level of PAX6, PBX3, PBXIP1, MEIS1, and MEIS2 genes was evaluated by a real-time quantitative polymerase chain reaction analysis and normalized to ACTB. Results. It was found that glucose deprivation down-regulated the expression level of PAX6, MEIS1, and MEIS2 genes in control glioma cells, but did not significantly alter PBX3 and PBXIP1 genes expression. At the same time, ERN1 knockdown significantly modified the sensitivity of all studied genes to glucose deprivation. Other changes in gene expression were detected in control glioma cells under the glutamine deprivation. The expression of PBX3 and MEIS2 genes was down- while PAX6 and PBXIP1 genes up-regulated. Furthermore, ERN1 knockdown significantly modified the effect of glutamine deprivation on the majority of studied genes expression in U87 glioma cells. Conclusion. The results of the present study demonstrate that the exposure of U87 glioma cells under glucose and glutamine deprivations affected the expression of the majority of the studied homeobox genes and that the sensitivity of PAX6, PBX3, PBXIP1, MEIS1, and MEIS2 genes expression under these experimental conditions is mediated by ERN1, the major pathway of the endoplasmic reticulum stress signaling.
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Affiliation(s)
- Dariia O Krasnytska
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Yuliia M Viletska
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Dmytro O Minchenko
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
- Department of Pediatrics and Department of Surgery, National Bohomolets Medical University, Kyiv, Ukraine
| | - Olena O Khita
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Dariia O Tsymbal
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Anastasiia A Cherednychenko
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Halyna E Kozynkevych
- Department of Pediatrics and Department of Surgery, National Bohomolets Medical University, Kyiv, Ukraine
| | - Nataliia S Oksiom
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Oleksandr H Minchenko
- Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Lee HY, Jang HR, Li H, Samuel VT, Dudek KD, Osipovich AB, Magnuson MA, Sklar J, Shulman GI. Deletion of Jazf1 gene causes early growth retardation and insulin resistance in mice. Proc Natl Acad Sci U S A 2022; 119:e2213628119. [PMID: 36442127 PMCID: PMC9894197 DOI: 10.1073/pnas.2213628119] [Citation(s) in RCA: 2] [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] [Indexed: 11/29/2022] Open
Abstract
Single-nucleotide polymorphisms in the human juxtaposed with another zinc finger protein 1 (JAZF1) gene have repeatedly been associated with both type 2 diabetes (T2D) and height in multiple genome-wide association studies (GWAS); however, the mechanism by which JAZF1 causes these traits is not yet known. To investigate the possible functional role of JAZF1 in growth and glucose metabolism in vivo, we generated Jazf1 knockout (KO) mice and examined body composition and insulin sensitivity both in young and adult mice by using 1H-nuclear magnetic resonance and hyperinsulinemic-euglycemic clamp techniques. Plasma concentrations of insulin-like growth factor 1 (IGF-1) were reduced in both young and adult Jazf1 KO mice, and young Jazf1 KO mice were shorter in stature than age-matched wild-type mice. Young Jazf1 KO mice manifested reduced fat mass, whereas adult Jazf1 KO mice manifested increased fat mass and reductions in lean body mass associated with increased plasma growth hormone (GH) concentrations. Adult Jazf1 KO manifested muscle insulin resistance that was further exacerbated by high-fat diet feeding. Gene set enrichment analysis in Jazf1 KO liver identified the hepatocyte hepatic nuclear factor 4 alpha (HNF4α), which was decreased in Jazf1 KO liver and in JAZF1 knockdown cells. Moreover, GH-induced IGF-1 expression was inhibited by JAZF1 knockdown in human hepatocytes. Taken together these results demonstrate that reduction of JAZF1 leads to early growth retardation and late onset insulin resistance in vivo which may be mediated through alterations in the GH-IGF-1 axis and HNF4α.
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Affiliation(s)
- Hui-Young Lee
- aLaboratory of Mitochondria and Metabolic Diseases, School of Medicine, Gachon University, Incheon21999, Korea
- bDepartment of Molecular Medicine, School of Medicine, Gachon University, Incheon21999, Korea
- cKorea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon21999, Korea
| | - Hye Rim Jang
- aLaboratory of Mitochondria and Metabolic Diseases, School of Medicine, Gachon University, Incheon21999, Korea
- bDepartment of Molecular Medicine, School of Medicine, Gachon University, Incheon21999, Korea
| | - Hui Li
- dDepartment of Pathology, University of Virginia, Charlottesville, VA22908
| | - Varman T. Samuel
- eDepartment of Internal Medicine, Yale School of Medicine, New Haven, CT06510
- fWest Haven Veterans Affairs Medical Center, West Haven, CT06516
| | - Karrie D. Dudek
- gDepartment of Cell and Developmental Biology, Vanderbilt University, NashvilleTN37232
| | - Anna B. Osipovich
- hDepartment of Molecular Physiology and Biophysics, Vanderbilt UniversityNashville, TN37232
| | - Mark A. Magnuson
- hDepartment of Molecular Physiology and Biophysics, Vanderbilt UniversityNashville, TN37232
- 1To whom correspondence may be addressed. , , or
| | - Jeffrey Sklar
- iDepartment of Pathology, Yale School of Medicine, New HavenCT06510
- 1To whom correspondence may be addressed. , , or
| | - Gerald I. Shulman
- eDepartment of Internal Medicine, Yale School of Medicine, New Haven, CT06510
- jDepartment of Cellular & Molecular Physiology, Yale School of Medicine, New Haven, CT06510
- 1To whom correspondence may be addressed. , , or
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Abstract
Pancreatic neuroendocrine tumors (PanNETs) represent a clinically challenging disease because these tumors vary in clinical presentation, natural history, and prognosis. Novel prognostic biomarkers are needed to improve patient stratification and treatment options. Several putative prognostic and/or predictive biomarkers (eg, alternative lengthening of telomeres, alpha-thalassemia/mental retardation, X-linked (ATRX)/Death Domain Associated Protein (DAXX) loss) have been independently validated. Additionally, recent transcriptomic and epigenetic studies focusing on endocrine differentiation have identified PanNET subtypes that display similarities to either α-cells or β-cells and differ in clinical outcomes. Thus, future prospective studies that incorporate genomic and epigenetic biomarkers are warranted and have translational potential for individualized therapeutic and surveillance strategies.
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Affiliation(s)
- Wenzel M Hackeng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Hussein A Assi
- Department of Medicine, Boston University School of Medicine, 820 Harrison Avenue, FGH 2011, Boston, MA 02118, USA
| | - Florine H M Westerbeke
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Christopher M Heaphy
- Department of Medicine, Boston University School of Medicine, 650 Albany Street, Room 444, Boston, MA 02118, USA; Department of Pathology & Laboratory Medicine, Boston University School of Medicine, 650 Albany Street, Room 444, Boston, MA 02118, USA.
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37
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Zhang X, Luo F, Luo S, Li L, Ren X, Lin J, Liang Y, Ma C, Ding L, Zhang D, Ye T, Lin Y, Jin B, Gao S, Ye Q. Transcriptional Repression of Aerobic Glycolysis by OVOL2 in Breast Cancer. Adv Sci (Weinh) 2022; 9:e2200705. [PMID: 35896951 PMCID: PMC9507357 DOI: 10.1002/advs.202200705] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Aerobic glycolysis (Warburg effect), a hallmark of cancer, plays a critical role in cancer cell growth and metastasis; however, direct inhibition of the Warburg effect remains largely unknown. Herein, the transcription factor OVO-like zinc finger 2 (OVOL2) is demonstrated to directly repress the expression of several glycolytic genes, blocking the Warburg effect and breast tumor growth and metastasis in vitro and in vivo. OVOL2 inhibits glycolysis by recruiting the nuclear receptor co-repressor (NCoR) and histone deacetylase 3 (HDAC3). The tumor suppressor p53, a key regulator of cancer metabolism, activates OVOL2 by binding to the oncoprotein mouse double minute 2 homolog (MDM2) and inhibiting MDM2-mediated ubiquitination and degradation of OVOL2. OVOL2 expression is negatively correlated with glycolytic gene expression and can be a good predictor of prognosis in patients with breast cancer. Therefore, targeting the p53/MDM2/OVOL2 axis provides a potential avenue for cancer treatment, especially breast cancer.
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Affiliation(s)
- Xiujuan Zhang
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Fei Luo
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
- Medical School of Guizhou UniversityGuiyang550025China
| | - Shaliu Luo
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
- Medical School of Guizhou UniversityGuiyang550025China
| | - Ling Li
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Xinxin Ren
- Department of Clinical LaboratoryThe Fourth Medical Center of PLA General HospitalBeijing100037China
- Shanxi Medical UniversityTaiyuan030000China
| | - Jing Lin
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
- Department of Clinical LaboratoryThe Fourth Medical Center of PLA General HospitalBeijing100037China
| | - Yingchun Liang
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Chao Ma
- Institute of Cancer Stem CellDalian Medical UniversityDalian116000China
| | - Lihua Ding
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Deyu Zhang
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Tianxing Ye
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
| | - Yanni Lin
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
- Shanxi Medical UniversityTaiyuan030000China
| | - Bilian Jin
- Institute of Cancer Stem CellDalian Medical UniversityDalian116000China
| | - Shan Gao
- Zhongda HospitalSchool of Life Sciences and TechnologyAdvanced Institute for Life and HealthSoutheast UniversityNanjing210096China
| | - Qinong Ye
- Department of Medical Molecular BiologyBeijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing100850China
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Huang YS, Wu CC, Chang CC, Huang SF, Kuo HY, Shih HM. Reciprocal regulation of Daxx and PIK3CA promotes colorectal cancer cell growth. Cell Mol Life Sci 2022; 79:367. [PMID: 35718818 DOI: 10.1007/s00018-022-04399-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023]
Abstract
Upregulation of death-domain-associated protein (Daxx) is strongly associated with diverse cancer types. Among these, the clinicopathological significance and molecular mechanisms of Daxx overexpression in colorectal cancer (CRC) remain unknown. Here, we showed that Daxx expression was increased in both clinical CRC samples and CRC cell lines. Daxx knockdown significantly reduced proliferation activity in CRC cells and tumor growth in a xenograft model. Further studies revealed that Daxx expression could be attenuated by either treatment with the PIK3CA inhibitor PIK-75 or PIK3CA depletion in CRC cells. Conversely, expression of PIK3CA constitutively active mutants could increase Daxx expression. These data suggest that PIK3CA positively regulates Daxx expression. Consistently, the expression levels of PIK3CA and Daxx were positively correlated in sporadic CRC samples. Interestingly, Daxx knockdown or overexpression yielded decreased or increased levels of PIK3CA, respectively, in CRC cells. We further demonstrated that Daxx activates the promoter activity and expression of PIK3CA. Altogether, our results identify a mechanistic pathway of Daxx overexpression in CRC and suggest a reciprocal regulation between Daxx and PIK3CA for CRC cell growth.
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Affiliation(s)
- Yen-Sung Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.
| | - Chang-Chieh Wu
- Department of Surgery, Tri-Service General Hospital Keelung Branch, National Defense Medical Center, Keelung, 20244, Taiwan
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan
| | - Shiu-Feng Huang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan
| | - Hong-Yi Kuo
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan.
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Hackeng WM, Brosens LAA, Kim JY, O'Sullivan R, Sung YN, Liu TC, Cao D, Heayn M, Brosnan-Cashman J, An S, Morsink FHM, Heidsma CM, Valk GD, Vriens MR, Nieveen van Dijkum E, Offerhaus GJA, Dreijerink KMA, Zeh H, Zureikat AH, Hogg M, Lee K, Geller D, Marsh JW, Paniccia A, Ongchin M, Pingpank JF, Bahary N, Aijazi M, Brand R, Chennat J, Das R, Fasanella KE, Khalid A, McGrath K, Sarkaria S, Singh H, Slivka A, Nalesnik M, Han X, Nikiforova MN, Lawlor RT, Mafficini A, Rusev B, Corbo V, Luchini C, Bersani S, Pea A, Cingarlini S, Landoni L, Salvia R, Milione M, Milella M, Scarpa A, Hong SM, Heaphy CM, Singhi AD. Non-functional pancreatic neuroendocrine tumours: ATRX/DAXX and alternative lengthening of telomeres (ALT) are prognostically independent from ARX/PDX1 expression and tumour size. Gut 2022; 71:961-973. [PMID: 33849943 PMCID: PMC8511349 DOI: 10.1136/gutjnl-2020-322595] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/16/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Recent studies have found aristaless-related homeobox gene (ARX)/pancreatic and duodenal homeobox 1 (PDX1), alpha-thalassemia/mental retardation X-linked (ATRX)/death domain-associated protein (DAXX) and alternative lengthening of telomeres (ALT) to be promising prognostic biomarkers for non-functional pancreatic neuroendocrine tumours (NF-PanNETs). However, they have not been comprehensively evaluated, especially among small NF-PanNETs (≤2.0 cm). Moreover, their status in neuroendocrine tumours (NETs) from other sites remains unknown. DESIGN An international cohort of 1322 NETs was evaluated by immunolabelling for ARX/PDX1 and ATRX/DAXX, and telomere-specific fluorescence in situ hybridisation for ALT. This cohort included 561 primary NF-PanNETs, 107 NF-PanNET metastases and 654 primary, non-pancreatic non-functional NETs and NET metastases. The results were correlated with numerous clinicopathological features including relapse-free survival (RFS). RESULTS ATRX/DAXX loss and ALT were associated with several adverse prognostic findings and distant metastasis/recurrence (p<0.001). The 5-year RFS rates for patients with ATRX/DAXX-negative and ALT-positive NF-PanNETs were 40% and 42% as compared with 85% and 86% for wild-type NF-PanNETs (p<0.001 and p<0.001). Shorter 5-year RFS rates for ≤2.0 cm NF-PanNETs patients were also seen with ATRX/DAXX loss (65% vs 92%, p=0.003) and ALT (60% vs 93%, p<0.001). By multivariate analysis, ATRX/DAXX and ALT status were independent prognostic factors for RFS. Conversely, classifying NF-PanNETs by ARX/PDX1 expression did not independently correlate with RFS. Except for 4% of pulmonary carcinoids, ATRX/DAXX loss and ALT were only identified in primary (25% and 29%) and NF-PanNET metastases (62% and 71%). CONCLUSIONS ATRX/DAXX and ALT should be considered in the prognostic evaluation of NF-PanNETs including ≤2.0 cm tumours, and are highly specific for pancreatic origin among NET metastases of unknown primary.
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Affiliation(s)
- Wenzel M Hackeng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Joo Young Kim
- Department of Pathology, Nowon Eulji Medical Center, Eulji University, Seoul, Republic of Korea
| | - Roderick O'Sullivan
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - You-Na Sung
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ta-Chiang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St, Louis, MO, USA
| | - Dengfeng Cao
- Department of Pathology and Immunology, Washington University School of Medicine, St, Louis, MO, USA
| | - Michelle Heayn
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Soyeon An
- Department of Pathology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Republic of Korea
| | - Folkert H M Morsink
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Charlotte M Heidsma
- Department of Surgery, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Gerlof D Valk
- Department of Endocrinology and Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Menno R Vriens
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - G Johan A Offerhaus
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Koen M A Dreijerink
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Endocrinology and Internal Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Herbert Zeh
- Department of Clinical Sciences, Surgery, University of Texas Southwestern, Dallas, TX, USA
| | - Amer H Zureikat
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Melissa Hogg
- Department of Surgery, NorthShore University Health System, Evanston, IL, USA
| | - Kenneth Lee
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David Geller
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - J Wallis Marsh
- Department of Surgery, West Virginia University Health Sciences Center, Morgantown, WV, USA
| | - Alessandro Paniccia
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Melanie Ongchin
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - James F Pingpank
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Nathan Bahary
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Muaz Aijazi
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Randall Brand
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jennifer Chennat
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Rohit Das
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kenneth E Fasanella
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Asif Khalid
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kevin McGrath
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Savreet Sarkaria
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Harkirat Singh
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Adam Slivka
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Michael Nalesnik
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Xiaoli Han
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Marina N Nikiforova
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Rita Teresa Lawlor
- ARC-Net Centre for Applied Research on Cancer, University and Hospital Trust of Verona, Verona, Italy
| | - Andrea Mafficini
- ARC-Net Centre for Applied Research on Cancer, University and Hospital Trust of Verona, Verona, Italy
| | - Boris Rusev
- ARC-Net Centre for Applied Research on Cancer, University and Hospital Trust of Verona, Verona, Italy
| | - Vincenzo Corbo
- ARC-Net Centre for Applied Research on Cancer, University and Hospital Trust of Verona, Verona, Italy
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, Verona, Italy
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, Verona, Italy
- ENETS Center of Excellence, University and Hospital Trust of Verona, Verona, Italy
| | - Samantha Bersani
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, Verona, Italy
| | - Antonio Pea
- The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Sara Cingarlini
- The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
- Department of Medicine, Section of Oncology, University and Hospital Trust of Verona, Verona, Italy
| | - Luca Landoni
- ENETS Center of Excellence, University and Hospital Trust of Verona, Verona, Italy
- The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Roberto Salvia
- ENETS Center of Excellence, University and Hospital Trust of Verona, Verona, Italy
- The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Massimo Milione
- Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Michele Milella
- ENETS Center of Excellence, University and Hospital Trust of Verona, Verona, Italy
- Department of Medicine, Section of Oncology, University and Hospital Trust of Verona, Verona, Italy
| | - Aldo Scarpa
- ARC-Net Centre for Applied Research on Cancer, University and Hospital Trust of Verona, Verona, Italy
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, Verona, Italy
- ENETS Center of Excellence, University and Hospital Trust of Verona, Verona, Italy
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Christopher M Heaphy
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Aatur D Singhi
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Xu G, Shi W, Ling L, Li C, Shao F, Chen J, Wang Y. Differential expression and analysis of extrachromosomal circular DNAs as serum biomarkers in lung adenocarcinoma. J Clin Lab Anal 2022; 36:e24425. [PMID: 35441736 PMCID: PMC9169211 DOI: 10.1002/jcla.24425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 11/07/2022] Open
Abstract
Background Extrachromosomal circular DNAs (eccDNAs) increase the number of proto‐oncogenes by enhancing oncogene expression to promote tumorigenesis. However, there are limited reports on differential eccDNA expression and analysis in lung cancer, especially in lung adenocarcinoma (LAD). Methods Three LAD and three corresponding NT tissues samples were used for eccDNA next‐generation sequencing analysis, and an additional 20 were used for quantitative PCR (qPCR) evaluations. We further performed qPCR amplification using serum samples from LAD patients and healthy medical examiners. Results eccDNAs from LAD samples were mainly 200–1000 bp in length. Gene annotation analysis revealed that most eccDNAs were derived from chromosomes 1 and 2. The top‐ten increased and top‐ten decreased eccDNAs in LAD tissues were CircD‐ARPC1B, CircD‐ARPC1A, CircD‐FAM49B, CircD‐SDK1, CircD‐KCNG1, CircD‐POLR2F, CircD‐SS18L1, CircD‐SLC16A3, CircD‐CSNK1D, CircD‐KCTD1, and CircD‐TMIGD2, CircD‐PDIA5, CircD‐VAV2, CircD‐GATAD2A, CircD‐CAB39L, CircD‐KHDC1, CircD‐FOXN3, CircD‐SULT2B1, CircD‐DPP9, and CircD‐CSNK1D. qPCR demonstrated that the expression of CircD‐DZRN3 was higher in LAD tissues than in normal lung tissues, whereas CircD‐LGR6 and CircD‐UMODL1 expression levels were lower in LAD than in normal lung tissues. Furthermore, the serum CircD‐PDZRN3 level increased, while CircD‐LGR6 decreased in LAD. Receiver operating characteristic (ROC) analysis showed that area under curve (AUC) of serum CircD‐PDZRN3 (0.991), CircD‐LGR6 (0.916) was higher than that of serum carcinoembryonic antigen (CEA) (0.825), CY211 (cytokeratin 19 fragment) (0.842), SCCA(squamous cell carcinoma antigen) (0.857) for the diagnosis of LAD. Conclusions Our study first showed that several eccDNAs were aberrantly expressed in LAD, among which CircD‐PDZRN3 and CircD‐LGR6 clearly distinguished LAD patients from healthy controls, indicating their potential as biomarkers.
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Affiliation(s)
- Gang Xu
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Wenjing Shi
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Liqun Ling
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Changhong Li
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Fanggui Shao
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Jie Chen
- Department of ICUThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Yumin Wang
- Department of Laboratory MedicineThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
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Sun Z, Waybright JM, Beldar S, Chen L, Foley CA, Norris‐Drouin JL, Lyu T, Dong A, Min J, Wang Y, James LI, Wang Y. Cdyl Deficiency Brakes Neuronal Excitability and Nociception through Promoting Kcnb1 Transcription in Peripheral Sensory Neurons. Adv Sci (Weinh) 2022; 9:e2104317. [PMID: 35119221 PMCID: PMC8981457 DOI: 10.1002/advs.202104317] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/28/2021] [Indexed: 05/24/2023]
Abstract
Epigenetic modifications are involved in the onset, development, and maintenance of pain; however, the precise epigenetic mechanism underlying pain regulation remains elusive. Here it is reported that the epigenetic factor chromodomain Y-like (CDYL) is crucial for pain processing. Selective knockout of CDYL in sensory neurons results in decreased neuronal excitability and nociception. Moreover, CDYL facilitates histone 3 lysine 27 trimethylation (H3K27me3) deposition at the Kcnb1 intron region thus silencing voltage-gated potassium channel (Kv ) subfamily member Kv 2.1 transcription. Loss function of CDYL enhances total Kv and Kv 2.1 current density in dorsal root ganglia and knockdown of Kv 2.1 reverses the pain-related phenotypes of Cdyl deficiency mice. Furthermore, focal administration of a novel potent CDYL antagonist blunts nociception and attenuates neuropathic pain. These findings reveal that CDYL is a critical regulator of pain sensation and shed light on the development of novel analgesics targeting epigenetic mechanisms.
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Affiliation(s)
- Zhao‐Wei Sun
- Neuroscience Research Institute and Department of NeurobiologySchool of Basic Medical SciencesKey Laboratory for NeuroscienceMinistry of Education/National Health Commission and State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijing100083China
- Institute of Military Cognitive and Brain SciencesAcademy of Military Medical SciencesBeijing100039China
| | - Jarod M. Waybright
- Center for Integrative Chemical Biology and Drug DiscoveryDivision of Chemical Biology and Medicinal ChemistryUNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599USA
| | - Serap Beldar
- Structural Genomics ConsortiumUniversity of Toronto101 College StreetTorontoOntarioM5G 1L7Canada
| | - Lu Chen
- Neuroscience Research Institute and Department of NeurobiologySchool of Basic Medical SciencesKey Laboratory for NeuroscienceMinistry of Education/National Health Commission and State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijing100083China
| | - Caroline A. Foley
- Center for Integrative Chemical Biology and Drug DiscoveryDivision of Chemical Biology and Medicinal ChemistryUNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599USA
| | - Jacqueline L. Norris‐Drouin
- Center for Integrative Chemical Biology and Drug DiscoveryDivision of Chemical Biology and Medicinal ChemistryUNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599USA
| | - Tian‐Jie Lyu
- Neuroscience Research Institute and Department of NeurobiologySchool of Basic Medical SciencesKey Laboratory for NeuroscienceMinistry of Education/National Health Commission and State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijing100083China
| | - Aiping Dong
- Structural Genomics ConsortiumUniversity of Toronto101 College StreetTorontoOntarioM5G 1L7Canada
| | - Jinrong Min
- Structural Genomics ConsortiumUniversity of Toronto101 College StreetTorontoOntarioM5G 1L7Canada
- Hubei Key Laboratory of Genetic Regulation and Integrative BiologySchool of Life SciencesCentral China Normal UniversityWuhanHubei430079China
- Department of PhysiologyUniversity of TorontoTorontoOntarioM5S 1A8Canada
| | - Yu‐Pu Wang
- Neuroscience Research Institute and Department of NeurobiologySchool of Basic Medical SciencesKey Laboratory for NeuroscienceMinistry of Education/National Health Commission and State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijing100083China
| | - Lindsey I. James
- Center for Integrative Chemical Biology and Drug DiscoveryDivision of Chemical Biology and Medicinal ChemistryUNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599USA
| | - Yun Wang
- Neuroscience Research Institute and Department of NeurobiologySchool of Basic Medical SciencesKey Laboratory for NeuroscienceMinistry of Education/National Health Commission and State Key Laboratory of Natural and Biomimetic DrugsPeking UniversityBeijing100083China
- PKU‐IDG/McGovern Institute for Brain ResearchPeking UniversityBeijing100871China
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42
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Deng H, Chen Y, Liu Z, Liu Z, Shu P, Wang R, Hao Y, Su D, Pirrello J, Liu Y, Li Z, Grierson D, Giovannoni JJ, Bouzayen M, Liu M. SlERF.F12 modulates the transition to ripening in tomato fruit by recruiting the co-repressor TOPLESS and histone deacetylases to repress key ripening genes. Plant Cell 2022; 34:1250-1272. [PMID: 35099538 PMCID: PMC8972228 DOI: 10.1093/plcell/koac025] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/21/2022] [Indexed: 05/24/2023]
Abstract
Ethylene response factors (ERFs) are downstream components of ethylene-signaling pathways known to play critical roles in ethylene-controlled climacteric fruit ripening, yet little is known about the molecular mechanism underlying their mode of action. Here, we demonstrate that SlERF.F12, a member of the ERF.F subfamily containing Ethylene-responsive element-binding factor-associated Amphiphilic Repression (EAR) motifs, negatively regulates the onset of tomato (Solanum lycopersicum) fruit ripening by recruiting the co-repressor TOPLESS 2 (TPL2) and the histone deacetylases (HDAs) HDA1/HDA3 to repress the transcription of ripening-related genes. The SlERF.F12-mediated transcriptional repression of key ripening-related genes 1-AMINO-CYCLOPROPANE-1-CARBOXYLATE SYNTHASE 2 (ACS2), ACS4, POLYGALACTURONASE 2a, and PECTATE LYASE is dependent on the presence of its C-terminal EAR motif. We show that SlERF.F12 interacts with the co-repressor TPL2 via the C-terminal EAR motif and recruits HDAs SlHDA1 and SlHDA3 to form a tripartite complex in vivo that actively represses transcription of ripening genes by decreasing the level of the permissive histone acetylation marks H3K9Ac and H3K27Ac at their promoter regions. These findings provide new insights into the ripening regulatory network and uncover a direct link between repressor ERFs and histone modifiers in modulating the transition to ripening of climacteric fruit.
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Affiliation(s)
- Heng Deng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yao Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ziyu Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhaoqiao Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Peng Shu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ruochen Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yanwei Hao
- College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Dan Su
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Julien Pirrello
- GBF Laboratory, Université de Toulouse, INRA, Castanet-Tolosan 31320, France
| | - Yongsheng Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Don Grierson
- School of Biosciences, University of Nottingham, Loughborough LE12 5RD, UK
| | - James J Giovannoni
- Boyce Thompson Institute, Cornell University, Ithaca, New York 14853, USA
- US Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Ithaca, New York 14853, USA
| | - Mondher Bouzayen
- GBF Laboratory, Université de Toulouse, INRA, Castanet-Tolosan 31320, France
| | - Mingchun Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
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Schiaffini M, Chicois C, Pouclet A, Chartier T, Ubrig E, Gobert A, Zuber H, Mutterer J, Chicher J, Kuhn L, Hammann P, Gagliardi D, Garcia D. A NYN domain protein directly interacts with DECAPPING1 and is required for phyllotactic pattern. Plant Physiol 2022; 188:1174-1188. [PMID: 34791434 PMCID: PMC8825452 DOI: 10.1093/plphys/kiab529] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 10/15/2021] [Indexed: 06/01/2023]
Abstract
In eukaryotes, general mRNA decay requires the decapping complex. The activity of this complex depends on its catalytic subunit, DECAPPING2 (DCP2), and its interaction with decapping enhancers, including its main partner DECAPPING1 (DCP1). Here, we report that in Arabidopsis thaliana, DCP1 also interacts with a NYN domain endoribonuclease, hence named DCP1-ASSOCIATED NYN ENDORIBONUCLEASE 1 (DNE1). Interestingly, we found DNE1 predominantly associated with DCP1, but not with DCP2, and reciprocally, suggesting the existence of two distinct protein complexes. We also showed that the catalytic residues of DNE1 are required to repress the expression of mRNAs in planta upon transient expression. The overexpression of DNE1 in transgenic lines led to growth defects and a similar gene deregulation signature than inactivation of the decapping complex. Finally, the combination of dne1 and dcp2 mutations revealed a functional redundancy between DNE1 and DCP2 in controlling phyllotactic pattern formation. Our work identifies DNE1, a hitherto unknown DCP1 protein partner highly conserved in the plant kingdom and identifies its importance for developmental robustness.
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Affiliation(s)
- Marlene Schiaffini
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Clara Chicois
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Aude Pouclet
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Tiphaine Chartier
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Elodie Ubrig
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Anthony Gobert
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Hélène Zuber
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Jérôme Mutterer
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Johana Chicher
- Plateforme protéomique Strasbourg Esplanade du CNRS, Université de Strasbourg, Strasbourg, France
| | - Lauriane Kuhn
- Plateforme protéomique Strasbourg Esplanade du CNRS, Université de Strasbourg, Strasbourg, France
| | - Philippe Hammann
- Plateforme protéomique Strasbourg Esplanade du CNRS, Université de Strasbourg, Strasbourg, France
| | - Dominique Gagliardi
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
| | - Damien Garcia
- Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France
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Li Y, Lei R, Pu M, Cai Y, Lu C, Li Z, Liang G. bHLH11 inhibits bHLH IVc proteins by recruiting the TOPLESS/TOPLESS-RELATED corepressors. Plant Physiol 2022; 188:1335-1349. [PMID: 34894263 PMCID: PMC8825326 DOI: 10.1093/plphys/kiab540] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 10/18/2021] [Indexed: 05/24/2023]
Abstract
Iron (Fe) homeostasis is essential for plant growth and development. Many transcription factors (TFs) play pivotal roles in the maintenance of Fe homeostasis. bHLH11 is a negative TF that regulates Fe homeostasis. However, the underlying molecular mechanism remains elusive. Here, we generated two loss-of-function bhlh11 mutants in Arabidopsis (Arabidopsis thaliana), which display enhanced sensitivity to excess Fe, increased Fe accumulation, and elevated expression of Fe deficiency responsive genes. Levels of bHLH11 protein, localized in both the cytoplasm and nucleus, decreased in response to Fe deficiency. Co-expression assays indicated that bHLH IVc TFs (bHLH34, bHLH104, bHLH105, and bHLH115) facilitate the nuclear accumulation of bHLH11. Further analysis indicated that bHLH11 represses the transactivity of bHLH IVc TFs toward bHLH Ib genes (bHLH38, bHLH39, bHLH100, and bHLH101). The two ethylene response factor-associated amphiphilic repression motifs of bHLH11 provided the repression function by recruiting the TOPLESS/TOPLESS-RELATED (TPL/TPRs) corepressors. Correspondingly, the expression of Fe uptake genes increased in the tpr1 tpr4 tpl mutant. Moreover, genetic analysis revealed that bHLH11 has functions independent of FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR. This study provides insights into the complicated Fe homeostasis signaling network.
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Affiliation(s)
- Yang Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Rihua Lei
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Mengna Pu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuerong Cai
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengkai Lu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Zhifang Li
- State Key Laboratory of Cotton Biology, State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, Henan 475001, China
| | - Gang Liang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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45
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Barnes CE, English DM, Broderick M, Collins MO, Cowley SM. Proximity-dependent biotin identification (BioID) reveals a dynamic LSD1-CoREST interactome during embryonic stem cell differentiation. Mol Omics 2022; 18:31-44. [PMID: 34709266 PMCID: PMC8763317 DOI: 10.1039/d1mo00236h] [Citation(s) in RCA: 7] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/14/2021] [Indexed: 12/19/2022]
Abstract
Lysine specific demethylase 1 (LSD1) regulates gene expression as part of the CoREST complex, along with co-repressor of REST (CoREST) and histone deacetylase 1 (HDAC1). CoREST is recruited to specific genomic loci by core components and numerous transient interactions with chromatin-associated factors and transcription factors. We hypothesise that many of these weaker and transient associations may be difficult to identify using traditional co-immunoprecipitation methods. We have therefore employed proximity-dependent biotin-identification (BioID) with four different members of the CoREST complex, in three different cell types, to identify a comprehensive network of LSD1/CoREST associated proteins. In HEK293T cells, we identified 302 CoREST-associated proteins. Among this group were 16 of 18 known CoREST components and numerous novel associations, including readers (CHD3, 4, 6, 7 and 8), writers (KMT2B and KMT2D) and erasers (KDM2B) of histone methylation. However, components of other HDAC1 containing complexes (e.g. Sin3) were largely absent. To examine the dynamic nature of the CoREST interactome in a primary cell type, we replaced endogenous LSD1 with BirA*-LSD1 in embryonic stem (ES) cells and performed BioID in pluripotent, early- and late-differentiating environments. We identified 156 LSD1-associated proteins of which 67 were constitutively associated across all three time-points (43%), including novel associations with the MMB and ChAHP complexes, implying that the majority of interactors are both dynamic and cell type dependent. In total, we have performed 16 independent BioID experiments for LSD1 in three different cell types, producing a definitive network of LSD1-assoicated proteins that should provide a major resource for the field.
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Affiliation(s)
- Claire E Barnes
- Department of Molecular and Cell biology, University of Leicester, Henry Wellcome Building, Leicester LE1 7RH, UK.
| | - David M English
- Department of Molecular and Cell biology, University of Leicester, Henry Wellcome Building, Leicester LE1 7RH, UK.
| | - Megan Broderick
- Department of Molecular and Cell biology, University of Leicester, Henry Wellcome Building, Leicester LE1 7RH, UK.
| | - Mark O Collins
- School of Biosciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
- Faculty of Science Mass Spectrometry Centre, University of Sheffield, Brook Hill Road, Sheffield, S3 7HF, UK
| | - Shaun M Cowley
- Department of Molecular and Cell biology, University of Leicester, Henry Wellcome Building, Leicester LE1 7RH, UK.
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Hu R, Yu Y, Wang H. The LMCD1-AS1/miR-526b-3p/OSBPL5 axis promotes cell proliferation, migration and invasion in non-small cell lung cancer. BMC Pulm Med 2022; 22:30. [PMID: 35000595 PMCID: PMC8744214 DOI: 10.1186/s12890-022-01820-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/31/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To explore the specific role and regulatory mechanism of oxysterol binding protein like 5 (OSBPL5) in non-small cell lung cancer (NSCLC). METHODS AND RESULTS Quantitative real-time polymerase chain reaction (qRT-PCR) analysis demonstrated that OSBPL5 expression was notably elevated in NSCLC tissues and cell lines, and Kaplan-Meier analysis manifested that high OSBPL5 expression was closely related to the poor prognosis of NSCLC patients. Besides, according to the results from western blot analysis, cell counting kit-8, EdU and Transwell assays, knockdown of OSBPL5 suppressed NSCLC cell proliferation, migration, invasion and epithelial-mesenchymal transition (EMT) process. Additionally, by performing qRT-PCR analysis, luciferase reporter and RNA pull-down assays, we verified that OSBPL5 was a downstream target of miR-526b-3p and long noncoding RNA (lncRNA) LMCD1-AS1 served as a sponge for miR-526b-3p. Moreover, from rescue assays, we observed that OSBPL5 overexpression offset LMCD1-AS1 knockdown-mediated inhibition in cell proliferation, migration, invasion and EMT in NSCLC. CONCLUSIONS This paper was the first to probe the molecular regulatory mechanism of OSBPL5 involving the LMCD1-AS1/miR-526b-3p axis in NSCLC and our results revealed that the LMCD1-AS1/miR-526b-3p/OSBPL5 axis facilitates NSCLC cell proliferation, migration, invasion and EMT, which may offer a novel therapeutic direction for NSCLC.
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Affiliation(s)
- Rui Hu
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, 31 Jinan Road, Dongying, 257034, Shandong, China
| | - Yankai Yu
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, 31 Jinan Road, Dongying, 257034, Shandong, China
| | - Haining Wang
- Department of Thoracic Surgery, Shengli Oilfield Central Hospital, 31 Jinan Road, Dongying, 257034, Shandong, China.
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Zhu J, Du S, Zhang J, Huang G, Dong L, Ren E, Liu D. microRNA-10a-5p from gastric cancer cell-derived exosomes enhances viability and migration of human umbilical vein endothelial cells by targeting zinc finger MYND-type containing 11. Bioengineered 2022; 13:496-507. [PMID: 34969361 PMCID: PMC8805907 DOI: 10.1080/21655979.2021.2009962] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/18/2021] [Indexed: 12/20/2022] Open
Abstract
Tumor-derived exosomes (exo) could modulate the biological behaviors of human umbilical vein endothelial cells (HUVECs). Here, the role of microRNA (miR)-10a-5p-modified gastric cancer (GC) cells-derived exo for HUVECs was studied. GC tissue specimens were collected, and miR-10a-5p and zinc finger MYND-type containing 11 (ZMYND11) levels were determined. HUVECs interfered with ZMYND11 or miR-10a-5p-related oligonucleotides. Exo was extracted from GC cells (HGC-27 exo), and miR-10a-5p mimic-modified HGC-27 exo were co-cultured with HUVECs. HUVECs viability, migration and angiogenesis were evaluated, and miR-10a-5p/ZMYND11 crosstalk was explored. It was observed that GC patients had raised miR-10a-5p and reduced ZMYND11, and miR-10a-5p negatively mediated ZMYND11 expression. Suppression of miR-10a-5p or overexpression of ZMYND11 inhibited viability, migration and tube formation ability of HUVECs. Notably, miR-10a-5p mimic-modified HGC-27 exo enhanced the viability, migration and tube formation ability of HUVECs, but this effect was impaired after up-regulating ZMYND11. In summary, miR-10a-5p from GC cells-derived exo enhances viability and migration of HUVECs by suppressing ZMYND11.
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Affiliation(s)
- Jiaxin Zhu
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Shasha Du
- Department of Nephrology, the First Affiliated Hospital, And College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Jianfeng Zhang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Guangzhao Huang
- Department of Emergency Medicine, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Lujia Dong
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Enbo Ren
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Dechun Liu
- Department of Gastrointestinal Surgery, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
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Vuttaradhi VK, Ezhil I, Ramani D, Kanumuri R, Raghavan S, Balasubramanian V, Saravanan R, Kanakarajan A, Joseph LD, Pitani RS, Sundaram S, Sjolander A, Venkatraman G, Rayala SK. Inflammation-induced PELP1 expression promotes tumorigenesis by activating GM-CSF paracrine secretion in the tumor microenvironment. J Biol Chem 2022; 298:101406. [PMID: 34774800 PMCID: PMC8671644 DOI: 10.1016/j.jbc.2021.101406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 10/13/2021] [Accepted: 11/09/2021] [Indexed: 01/15/2023] Open
Abstract
The inflammatory tumor microenvironment has been implicated as a major player fueling tumor progression and an enabling characteristic of cancer, proline, glutamic acid, and leucine-rich protein 1 (PELP1) is a novel nuclear receptor coregulator that signals across diverse signaling networks, and its expression is altered in several cancers. However, investigations to find the role of PELP1 in inflammation-driven oncogenesis are limited. Molecular studies here, utilizing macrophage cell lines and animal models upon stimulation with lipopolysaccharide (LPS) or necrotic cells, showed that PELP1 is an inflammation-inducible gene. Studies on the PELP1 promoter and its mutant identified potential binding of c-Rel, an NF-κB transcription factor subunit, to PELP1 promoter upon LPS stimulation in macrophages. Recruitment of c-Rel onto the PELP1 promoter was validated by chromatin immunoprecipitation, further confirming LPS mediated PELP1 expression through c-Rel-specific transcriptional regulation. Macrophages that overexpress PELP1 induces granulocyte-macrophage colony-stimulating factor secretion, which mediates cancer progression in a paracrine manner. Results from preclinical studies with normal-inflammatory-tumor progression models demonstrated a progressive increase in the PELP1 expression, supporting this link between inflammation and cancer. In addition, animal studies demonstrated the connection of PELP1 in inflammation-directed cancer progression. Taken together, our findings provide the first report on c-Rel-specific transcriptional regulation of PELP1 in inflammation and possible granulocyte-macrophage colony-stimulating factor-mediated transformation potential of activated macrophages on epithelial cells in the inflammatory tumor microenvironment, reiterating the link between PELP1 and inflammation-induced oncogenesis. Understanding the regulatory mechanisms of PELP1 may help in designing better therapeutics to cure various inflammation-associated malignancies.
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Affiliation(s)
- Veena Kumari Vuttaradhi
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Inemai Ezhil
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Divya Ramani
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India; Department of Human Genetics, Sri Ramachandra Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Rahul Kanumuri
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India; Department of Human Genetics, Sri Ramachandra Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Swetha Raghavan
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Vaishnavi Balasubramanian
- Department of Human Genetics, Sri Ramachandra Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Roshni Saravanan
- Department of Human Genetics, Sri Ramachandra Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Archana Kanakarajan
- Department of Pathology, Sri Ramachandra Medical College, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Leena Dennis Joseph
- Department of Pathology, Sri Ramachandra Medical College, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Ravi Shankar Pitani
- Department of Community Medicine, Sri Ramachandra Medical College, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Sandhya Sundaram
- Department of Pathology, Sri Ramachandra Medical College, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Anita Sjolander
- Cell Pathology, Department of Translational Medicine, Clinical Research Centre, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Ganesh Venkatraman
- Department of Human Genetics, Sri Ramachandra Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India.
| | - Suresh Kumar Rayala
- Molecular Oncology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India.
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Ban X, Mo S, Lu Z, Jia C, Shao H, Yan J, Chang X, Mao X, Wu Y, Zhang Y, Fan X, Yu S, Chen J. Alternative Lengthening of Telomeres Phenotype Predicts Progression Risk in Noninsulinomas in a Chinese Cohort. Neuroendocrinology 2022; 112:510-522. [PMID: 34348341 DOI: 10.1159/000518413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/08/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Recent studies have suggested that alternative lengthening of telomeres (ALT) is associated with metastasis and poor survival in pancreatic neuroendocrine tumors (PanNETs). This study evaluated whether this association is applicable to Chinese patients as well as the potential somatic mutations associated with ALT. METHODS We assessed the prevalence of ALT by performing telomere-specific fluorescence in situ hybridization and analyzed DAXX/ATRX expression using immunohistochemistry in 112 Chinese patients with PanNETs to evaluate the association between ALT and clinical outcomes. A subset of the noninsulinoma samples (28/60) was subjected to Sanger sequencing and targeted sequencing. RESULTS The ALT-positive phenotype was identified in 23.2% (26/112) of the samples. The clinicopathologic factors significantly associated with progression in the noninsulinoma (n = 60) cohort were the female sex (p = 0.006), Ki-67 index (p < 0.001), World Health Organization grade (p = 0.031), and ALT positivity (p = 0.013). Patients with ALT-positive PanNETs had significantly shorter progression-free survival than those with ALT-negative PanNETs in the entire cohort (p < 0.001), noninsulinoma subgroup (p = 0.01), and G2 subgroup (p = 0.001). ALT-positive samples frequently harbored somatic mutations in DAXX, ATRX, MEN1, SETBP1, PRKDC, and GNAS. CONCLUSIONS We confirmed that ALT positivity is an effective risk predictor, especially in the noninsulinoma and G2 subgroups. ALT is also related to somatic mutations in MEN1, SETBP1, PRKDC, and GNAS, in addition to DAXX and ATRX.
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Affiliation(s)
- Xinchao Ban
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Shengwei Mo
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhaohui Lu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Congwei Jia
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Huilin Shao
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jie Yan
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiaoyan Chang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xinxin Mao
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yan Wu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yue Zhang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiaojie Fan
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shuangni Yu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jie Chen
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Dai H, Qian Y, Lv H, Jiang L, Jiang H, Shen M, Chen H, Chen Y, Zheng S, Fu Q, Yang T, Xu K. Rs864745 in JAZF1, an Islet Function Associated Variant, Correlates With Plasma Lipid Levels in Both Type 1 and Type 2 Diabetes Status, but Not Healthy Subjects. Front Endocrinol (Lausanne) 2022; 13:898893. [PMID: 35846288 PMCID: PMC9283698 DOI: 10.3389/fendo.2022.898893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE This study aims to reveal the association between JAZF1 rs864745 A>G variant and type 2 diabetes (T2D), type 1 diabetes (T1D) risk, and their correlation with clinical features, including islet function, islet autoimmunity, and plasma lipid levels. METHODS We included 2505 healthy controls based on oral glucose tolerance test (OGTT), 1736 unrelated T2D, and 1003 unrelated autoantibody-positive T1D individuals. Binary logistic regression was performed to evaluate the relationships between rs864745 in JAZF1 and T2D, T1D, and islet-specific autoantibody status under the additive model, while multiple linear regression was used to assess its effect on glycemic-related quantitative traits and plasma lipid levels. RESULTS We did not find any association between rs864745 in JAZF1 and T2D, T1D, or their subgroups (All P > 0.05). For glycemic traits, we found that the G allele of this variant was significantly associated with higher 120 min insulin level, insulinogenic index (IGI), corrected insulin response (CIR), and acute insulin response (BIGTT-AIR) (P = 0.033, 0.006, 0.009, and 0.016, respectively) in healthy individuals. Similar associations were observed in newly diagnosed T2D but not T1D individuals. Although this variant had no impact on islet autoimmunity (All P > 0.05), significant associations with plasma total cholesterol (TC) and low-density lipoprotein (LDL) level stratified by JAZF1 rs864745 variant were observed in the disease status of T2D (P = 0.002 and 0.003) and T1D (P = 0.024 and 0.009), with significant heterogeneity to healthy individuals. CONCLUSIONS The common JAZF1 rs864745 variant contributes to islet function and lipid metabolism, which might be put into genetic risk scores to assess the risk of related clinical features.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Tao Yang
- *Correspondence: Tao Yang, ; Kuanfeng Xu,
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