1
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Rapone R, Del Maestro L, Bouyioukos C, Albini S, Cruz-Tapias P, Joliot V, Cosson B, Ait-Si-Ali S. The cytoplasmic fraction of the histone lysine methyltransferase Setdb1 is essential for embryonic stem cells. iScience 2023; 26:107386. [PMID: 37559904 PMCID: PMC10407132 DOI: 10.1016/j.isci.2023.107386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/26/2023] [Accepted: 07/11/2023] [Indexed: 08/11/2023] Open
Abstract
The major lysine methyltransferase (KMT) Setdb1 is essential for self-renewal and viability of mouse embryonic stem cells (mESCs). Setdb1 was primarily known to methylate the lysine 9 of histone 3 (H3K9) in the nucleus, where it regulates chromatin functions. However, Setdb1 is also massively localized in the cytoplasm, including in mESCs, where its role remains elusive. Here, we show that the cytoplasmic Setdb1 (cSetdb1) is essential for the survival of mESCs. Yeast two-hybrid analysis revealed that cSetdb1 interacts with several regulators of mRNA stability and protein translation machinery, such as the ESCs-specific E3 ubiquitin ligase and mRNA silencer Trim71/Lin41. We found that cSetdb1 is required for the integrity of Trim71 complex(es) involved in mRNA metabolism and translation. cSetdb1 modulates the abundance of mRNAs and the rate of newly synthesized proteins. Altogether, our data uncovered the cytoplasmic post-transcriptional regulation of gene expression mediated by a key epigenetic regulator.
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Affiliation(s)
- Roberta Rapone
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Laurence Del Maestro
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Costas Bouyioukos
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Sonia Albini
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Paola Cruz-Tapias
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Véronique Joliot
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Bertrand Cosson
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
| | - Slimane Ait-Si-Ali
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, UMR7216, 75013 Paris, France
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2
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Wan C, Zhang F, Yao H, Li H, Tuan RS. Histone Modifications and Chondrocyte Fate: Regulation and Therapeutic Implications. Front Cell Dev Biol 2021; 9:626708. [PMID: 33937229 PMCID: PMC8085601 DOI: 10.3389/fcell.2021.626708] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
The involvement of histone modifications in cartilage development, pathology and regeneration is becoming increasingly evident. Understanding the molecular mechanisms and consequences of histone modification enzymes in cartilage development, homeostasis and pathology provides fundamental and precise perspectives to interpret the biological behavior of chondrocytes during skeletal development and the pathogenesis of various cartilage related diseases. Candidate molecules or drugs that target histone modifying proteins have shown promising therapeutic potential in the treatment of cartilage lesions associated with joint degeneration and other chondropathies. In this review, we summarized the advances in the understanding of histone modifications in the regulation of chondrocyte fate, cartilage development and pathology, particularly the molecular writers, erasers and readers involved. In addition, we have highlighted recent studies on the use of small molecules and drugs to manipulate histone signals to regulate chondrocyte functions or treat cartilage lesions, in particular osteoarthritis (OA), and discussed their potential therapeutic benefits and limitations in preventing articular cartilage degeneration or promoting its repair or regeneration.
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Affiliation(s)
- Chao Wan
- MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,MOE Key Laboratory for Regenerative Medicine (Shenzhen Base), School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Fengjie Zhang
- MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,MOE Key Laboratory for Regenerative Medicine (Shenzhen Base), School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Hanyu Yao
- MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,MOE Key Laboratory for Regenerative Medicine (Shenzhen Base), School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Haitao Li
- MOE Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing, China
| | - Rocky S Tuan
- MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,MOE Key Laboratory for Regenerative Medicine (Shenzhen Base), School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
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3
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Sutter PA, Karki S, Crawley I, Singh V, Bernt KM, Rowe DW, Crocker SJ, Bayarsaihan D, Guzzo RM. Mesenchyme-specific loss of Dot1L histone methyltransferase leads to skeletal dysplasia phenotype in mice. Bone 2021; 142:115677. [PMID: 33022452 PMCID: PMC7744341 DOI: 10.1016/j.bone.2020.115677] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/20/2020] [Accepted: 10/01/2020] [Indexed: 12/17/2022]
Abstract
Chromatin modifying enzymes play essential roles in skeletal development and bone maintenance, and deregulation of epigenetic mechanisms can lead to skeletal growth and malformation disorders. Here, we report a novel skeletal dysplasia phenotype in mice with conditional loss of Disruptor of telomeric silencing 1-like (Dot1L) histone methyltransferase in limb mesenchymal progenitors and downstream descendants. Phenotypic characterizations of mice with Dot1L inactivation by Prrx1-Cre (Dot1L-cKOPrrx1) revealed limb shortening, abnormal bone morphologies, and forelimb dislocations. Our in vivo and in vitro data support a crucial role for Dot1L in regulating growth plate chondrocyte proliferation and differentiation, extracellular matrix production, and secondary ossification center formation. Micro-computed tomography analysis of femurs revealed that partial loss of Dot1L expression is sufficient to impair trabecular bone formation and microarchitecture in young mice. Moreover, RNAseq analysis of Dot1L deficient chondrocytes implicated Dot1L in the regulation of key genes and pathways necessary to promote cell cycle regulation and skeletal growth. Collectively, our data show that early expression of Dot1L in limb mesenchyme provides essential regulatory control of endochondral bone morphology, growth, and stability.
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Affiliation(s)
- Pearl A Sutter
- Department of Neuroscience, School of Medicine, University of Connecticut Health, Farmington, CT, United States of America
| | - Sangita Karki
- Department of Neuroscience, School of Medicine, University of Connecticut Health, Farmington, CT, United States of America
| | - Ilan Crawley
- Department of Neuroscience, School of Medicine, University of Connecticut Health, Farmington, CT, United States of America
| | - Vijender Singh
- Bioinformatics, University of Connecticut, Storrs, CT, United States of America
| | - Kathrin M Bernt
- Division of Pediatric Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania and Abramson Cancer Center, Philadelphia, PA, United States of America
| | - David W Rowe
- Department of Reconstructive Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, CT, United States of America; Center for Regenerative Medicine and Skeletal Development, Farmington, CT, United States of America
| | - Stephen J Crocker
- Department of Neuroscience, School of Medicine, University of Connecticut Health, Farmington, CT, United States of America
| | - Dashzeveg Bayarsaihan
- Department of Reconstructive Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, CT, United States of America; Center for Regenerative Medicine and Skeletal Development, Farmington, CT, United States of America
| | - Rosa M Guzzo
- Department of Neuroscience, School of Medicine, University of Connecticut Health, Farmington, CT, United States of America.
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4
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Fukuda K, Shinkai Y. SETDB1-Mediated Silencing of Retroelements. Viruses 2020; 12:E596. [PMID: 32486217 PMCID: PMC7354471 DOI: 10.3390/v12060596] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 12/11/2022] Open
Abstract
SETDB1 (SET domain bifurcated histone lysine methyltransferase 1) is a protein lysine methyltransferase and methylates histone H3 at lysine 9 (H3K9). Among other H3K9 methyltransferases, SETDB1 and SETDB1-mediated H3K9 trimethylation (H3K9me3) play pivotal roles for silencing of endogenous and exogenous retroelements, thus contributing to genome stability against retroelement transposition. Furthermore, SETDB1 is highly upregulated in various tumor cells. In this article, we describe recent advances about how SETDB1 activity is regulated, how SETDB1 represses various types of retroelements such as L1 and class I, II, and III endogenous retroviruses (ERVs) in concert with other epigenetic factors such as KAP1 and the HUSH complex and how SETDB1-mediated H3K9 methylation can be maintained during replication.
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Affiliation(s)
- Kei Fukuda
- Cellular Memory Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - Yoichi Shinkai
- Cellular Memory Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
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5
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Gao L, Li S, Wei X, Du G, Wei D, Wei L. Conditional deletion of HDAC4 from collagen type 2α1-expressing cells increases angiogenesis in vivo. Mol Med 2020; 26:36. [PMID: 32354322 PMCID: PMC7193350 DOI: 10.1186/s10020-020-00154-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/02/2020] [Indexed: 11/19/2022] Open
Abstract
Background HDAC4 is a key regulator of chondrocyte hypertrophy and skeletal development, but it is not clear whether the increase in vascular invasion at growth plates is related to HDAC4 expression. To determine it, we investigated the relationship between HDAC4 and angiogenesis in both in vivo and in vitro models. Methods HDAC4 was deleted in Col2α1-Cre; HDAC4fl/fl mice. Growth of the Col2α1-Cre; HDAC4d/d mice was compared with HDAC4fl/fl mice at postnatal days 2, 4, 6, and 8. X-rays were taken to examine skeletal development. At postnatal days 14 and 21, mice were euthanized for specimen collection. Murine chondrocytes were isolated from the ventral parts of rib cages of 6-day-old mice (C57Bl/6) and transfected with a vector expressing HDAC4 as a fusion protein with green fluorescent protein (GFP). Relative expression levels of HDAC4, VEGF, and Hif1α were measured in these cells by Western blot, RT-qPCR, enzyme-linked immunosorbent, histology, and immunohistochemistry assays. Results The Col2α1-Cre; HDAC4d/d mice were markedly smaller compared with the control mice. At postnatal days 14 and 21, the Col2α1-Cre; HDAC4d/d mice exhibited a shortened growth plate, a larger secondary ossification center, and stronger staining of CD31 and CD34 compared to control mice. The isolated chondrocyte cells exhibited a high transfection efficiency of HDAC4 which resulted in the detection of a significant decrease in VEGF and Hif1α levels compared with the control chondrocytes. Conclusions HDAC4 expression in chondrocytes contributes to angiogenesis in the growth plate, and its absence in vivo negatively affects growth plates.
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Affiliation(s)
- Lilan Gao
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, 300381, China.,National Demonstration Center for Experimental Mechanical and Electrical Engineering Education (Tianjin University of Technology), Tianjin, 300381, China.,Department of Orthopedics, Warren Alpert Medical School of Brown University / RIH, Coro West/402H, 1 Hoppin St, Providence, RI, 02903, USA
| | - Shengchun Li
- The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Xiaochun Wei
- The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Guoqing Du
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai, 201203, China
| | - Dennis Wei
- Northeastern University, Boston, MA, 02115, USA
| | - Lei Wei
- Department of Orthopedics, Warren Alpert Medical School of Brown University / RIH, Coro West/402H, 1 Hoppin St, Providence, RI, 02903, USA.
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6
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Ukita M, Matsushita K, Tamura M, Yamaguchi T. Histone H3K9 methylation is involved in temporomandibular joint osteoarthritis. Int J Mol Med 2019; 45:607-614. [PMID: 31894302 DOI: 10.3892/ijmm.2019.4446] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/11/2019] [Indexed: 11/05/2022] Open
Abstract
The morbidity of temporomandibular joint osteoarthritis (TMJOA) increases with age. Condylar articular cartilage degradation, which causes TMJOA, is known to be involved in articular chondrocyte metabolic imbalances in the temporomandibular joint (TMJ) and in other joints of the body. Epigenetic regulation, such as the chemical modification of DNA and histones, is implicated in cartilage homeostasis. However, few studies have been conducted on the epigenetic regulation of condylar articular cartilage degradation. The present study investigated the regulation of histone H3 lysine 9 (H3K9) methylation and its effects on the pathogenesis of degenerative TMJ cartilage disorders. The histone H3K9 methylation level was decreased in degenerated condylar articular cartilage in aged mice. Treatment with chaetocin (a selective H3K9 methylation inhibitor) reduced cell viability and promoted caspase‑3/7 activity in ATDC5 mouse chondroprogenitor cells. The inhibition of H3K9 methylation increased matrix metalloproteinase (Mmp)1 and Mmp13 mRNA expression in these cells. Furthermore, the expression levels of Sox9 and collagen α1(II) (Col2a1) mRNA, which are anabolic factors for chondrogenic differentiation, were also decreased by treatment with chaetocin, which is an inhibitor of histone methyltransferases. These results indicated that histone H3K9 methylation regulates chondrocyte homeostasis in terms of cell growth, apoptosis and gene expression, and highlighted a possible future therapy option for TMJOA.
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Affiliation(s)
- Mayumi Ukita
- Crown and Bridge Prosthodontics, Department of Oral Functional Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060‑8586, Japan
| | - Kenji Matsushita
- Department of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi 474‑8511, Japan
| | - Masato Tamura
- Biochemistry and Molecular Biology, Department of Oral Health Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060‑8586, Japan
| | - Taihiko Yamaguchi
- Crown and Bridge Prosthodontics, Department of Oral Functional Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060‑8586, Japan
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7
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Du X, Ouyang H. [Correlation between histone methylation level and pathological development of osteoarthritis]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2019; 48:682-687. [PMID: 31955544 PMCID: PMC8800784 DOI: 10.3785/j.issn.1008-9292.2019.12.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 06/03/2019] [Indexed: 06/10/2023]
Abstract
Osteoarthritis is the most common degenerative cartilage disease. A large number of studies have shown the close association between epigenetics and osteoarthritis. Histone methylation is a type of epigenetic modification, and the link between histone methylation and osteoarthritis has also been revealed. In this article, we summarize the correlation between methylation levels of different histones and osteoarthritis in an attempt to explore the changes and regulation mechanisms of histone methylation in osteoarthritis. It has been shown that there are possible relations between the methylation levels of different amino acids on histone H3 and the pathological development of osteoarthritis; specifically, the rise of methylation level at the lysine 4 would aggravate the pathological development of osteoarthritis, while the the pattern of lysine 9 and 27 would be the opposite. These results indicate the possible existence of a complex network of histone methylation modifications. And the specific regulation of histone methylation levels in different positions may delay or prevent the occurrence and development of osteoarthritis.
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Affiliation(s)
- Xiaotian Du
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
- Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of Medicine, Hangzhou 310058, China
- Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang University-University of Edinburgh Institute, International Campus of Zhejiang University, Haining 314400, Zhejiang Province, China
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8
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Allas L, Boumédiene K, Baugé C. Epigenetic dynamic during endochondral ossification and articular cartilage development. Bone 2019; 120:523-532. [PMID: 30296494 DOI: 10.1016/j.bone.2018.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/03/2018] [Accepted: 10/04/2018] [Indexed: 12/23/2022]
Abstract
Within the last decade epigenetics has emerged as fundamental regulator of numerous cellular processes, including those orchestrating embryonic and fetal development. As such, epigenetic factors play especially crucial roles in endochondral ossification, the process by which bone tissue is created, as well during articular cartilage formation. In this review, we summarize the recent discoveries that characterize how DNA methylation, histone post-translational modifications and non-coding RNA (e.g., miRNA and lcnRNA) epigenetically regulate endochondral ossification and chondrogenesis.
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Affiliation(s)
- Lyess Allas
- Normandie Univ, UNICAEN, EA7451 BioConnecT, Caen, France
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9
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Camilleri ET, Dudakovic A, Riester SM, Galeano-Garces C, Paradise CR, Bradley EW, McGee-Lawrence ME, Im HJ, Karperien M, Krych AJ, Westendorf JJ, Larson AN, van Wijnen AJ. Loss of histone methyltransferase Ezh2 stimulates an osteogenic transcriptional program in chondrocytes but does not affect cartilage development. J Biol Chem 2018; 293:19001-19011. [PMID: 30327434 PMCID: PMC6295726 DOI: 10.1074/jbc.ra118.003909] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 10/12/2018] [Indexed: 01/09/2023] Open
Abstract
Ezh2 is a histone methyltransferase that suppresses osteoblast maturation and skeletal development. We evaluated the role of Ezh2 in chondrocyte lineage differentiation and endochondral ossification. Ezh2 was genetically inactivated in the mesenchymal, osteoblastic, and chondrocytic lineages in mice using the Prrx1-Cre, Osx1-Cre, and Col2a1-Cre drivers, respectively. WT and conditional knockout mice were phenotypically assessed by gross morphology, histology, and micro-CT imaging. Ezh2-deficient chondrocytes in micromass culture models were evaluated using RNA-Seq, histologic evaluation, and Western blotting. Aged mice with Ezh2 deficiency were also evaluated for premature development of osteoarthritis using radiographic analysis. Ezh2 deficiency in murine chondrocytes reduced bone density at 4 weeks of age but caused no other gross developmental effects. Knockdown of Ezh2 in chondrocyte micromass cultures resulted in a global reduction in trimethylation of histone 3 lysine 27 (H3K27me3) and altered differentiation in vitro RNA-Seq analysis revealed enrichment of an osteogenic gene expression profile in Ezh2-deficient chondrocytes. Joint development proceeded normally in the absence of Ezh2 in chondrocytes without inducing excessive hypertrophy or premature osteoarthritis in vivo In summary, loss of Ezh2 reduced H3K27me3 levels, increased the expression of osteogenic genes in chondrocytes, and resulted in a transient post-natal bone phenotype. Remarkably, Ezh2 activity is dispensable for normal chondrocyte maturation and endochondral ossification in vivo, even though it appears to have a critical role during early stages of mesenchymal lineage commitment.
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Affiliation(s)
| | | | | | | | - Christopher R Paradise
- From the Departments of Orthopedic Surgery
- Molecular Pharmacology and Experimental Therapeutics, and
| | | | - Meghan E McGee-Lawrence
- the Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Hee-Jeong Im
- the Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612, and
| | - Marcel Karperien
- the Department of Developmental BioEngineering, University of Twente, 7522 NB Enschede, The Netherlands
| | | | - Jennifer J Westendorf
- From the Departments of Orthopedic Surgery
- Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55901
| | | | - Andre J van Wijnen
- From the Departments of Orthopedic Surgery,
- Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55901
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10
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Yang L, Gee AO, Zielinska-Kwiatkowska A, Chansky HA. Generation and characterization of mice with mesenchyme-specific deletion of the entire ESET histone methyltransferase protein. Genesis 2018; 56. [PMID: 29282851 DOI: 10.1002/dvg.23088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/20/2017] [Accepted: 12/25/2017] [Indexed: 12/24/2022]
Abstract
ESET protein (also known as SETDB1) catalyzes methylation of histone H3 at lysine 9 (H3-K9). In addition to the full-length transcript, mouse ESET gene also gives rise to alternative spicing variants encoding truncated proteins capable of retaining interaction with other epigenetic enzymes. To completely eliminate full-length ESET and its splicing variants, we have generated a conditional ESET allele with exon 4 flanked by two loxP sites for Cre-mediated DNA deletion and downstream frame-shift mutation of the entire coding region. Mating with Prx1-Cre mice and analysis of the resultant embryos revealed that mesenchyme-specific knockout of exon 4 completely eliminates full-length ESET and its truncated protein products, leading to profound defects in both the flat bones and long bones, ectopic hypertrophy of growth plate chondrocytes and downregulation of Indian hedgehog protein. In addition, exon 4 deletion results in reduced thickness of articular cartilage in E17.5 embryos, whereas deletion of exons 15-16 fails to do so. These findings offer us a useful tool to further study epigenetic regulation in a truly ESET-null background, and demonstrate that ESET plays a critical role in the control of chondrocyte hypertrophy and skeletal development.
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Affiliation(s)
- Liu Yang
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
| | - Albert O Gee
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
| | | | - Howard A Chansky
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington, 98195
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11
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Liu T, Chen X, Li T, Li X, Lyu Y, Fan X, Zhang P, Zeng W. Histone methyltransferase SETDB1 maintains survival of mouse spermatogonial stem/progenitor cells via PTEN/AKT/FOXO1 pathway. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1860:1094-1102. [DOI: 10.1016/j.bbagrm.2017.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 02/06/2023]
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12
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Beyer S, Pontis J, Schirwis E, Battisti V, Rudolf A, Le Grand F, Ait-Si-Ali S. Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation. Cell Discov 2016; 2:16037. [PMID: 27790377 PMCID: PMC5067623 DOI: 10.1038/celldisc.2016.37] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 09/19/2016] [Indexed: 02/06/2023] Open
Abstract
The histone 3 lysine 9 methyltransferase Setdb1 is essential for both stem cell pluripotency and terminal differentiation of different cell types. To shed light on the roles of Setdb1 in these mutually exclusive processes, we used mouse skeletal myoblasts as a model of terminal differentiation. Ex vivo studies on isolated single myofibres showed that Setdb1 is required for adult muscle stem cells expansion following activation. In vitro studies in skeletal myoblasts confirmed that Setdb1 suppresses terminal differentiation. Genomic binding analyses showed a release of Setdb1 from selected target genes upon myoblast terminal differentiation, concomitant to a nuclear export of Setdb1 to the cytoplasm. Both genomic release and cytoplasmic Setdb1 relocalisation during differentiation were dependent on canonical Wnt signalling. Transcriptomic assays in myoblasts unravelled a significant overlap between Setdb1 and Wnt3a regulated genetic programmes. Together, our findings revealed Wnt-dependent subcellular relocalisation of Setdb1 as a novel mechanism regulating Setdb1 functions and myogenesis.
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Affiliation(s)
- Sophie Beyer
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Julien Pontis
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Elija Schirwis
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Valentine Battisti
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
| | - Anja Rudolf
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Fabien Le Grand
- Institut Cochin, Université Paris-Descartes, Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
| | - Slimane Ait-Si-Ali
- Centre National de la Recherche Scientifique CNRS-Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate UMR7216 , Paris, France
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13
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Xu W, Xie Y, Wang Q, Wang X, Luo F, Zhou S, Wang Z, Huang J, Tan Q, Jin M, Qi H, Tang J, Chen L, Du X, Zhao C, Liang G, Chen L. A novel fibroblast growth factor receptor 1 inhibitor protects against cartilage degradation in a murine model of osteoarthritis. Sci Rep 2016; 6:24042. [PMID: 27041213 PMCID: PMC4819196 DOI: 10.1038/srep24042] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 03/21/2016] [Indexed: 12/22/2022] Open
Abstract
The attenuated degradation of articular cartilage by cartilage-specific deletion of fibroblast growth factor receptor 1 (FGFR1) in adult mice suggests that FGFR1 is a potential target for treating osteoarthritis (OA). The goal of the current study was to investigate the effect of a novel non-ATP-competitive FGFR1 inhibitor, G141, on the catabolic events in human articular chondrocytes and cartilage explants and on the progression of cartilage degradation in a murine model of OA. G141 was screened and identified via cell-free kinase-inhibition assay. In the in vitro study, G141 decreased the mRNA levels of catabolic markers ADAMTS-5 and MMP-13, the phosphorylation of Erk1/2, JNK and p38 MAPK, and the protein level of MMP-13 in human articular chondrocytes. In the ex vivo study, proteoglycan loss was markedly reduced in G141 treated human cartilage explants. For the in vivo study, intra-articular injection of G141 attenuated the surgical destabilization of the medial meniscus (DMM) induced cartilage destruction and chondrocyte hypertrophy and apoptosis in mice. Our data suggest that pharmacologically antagonize FGFR1 using G141 protects articular cartilage from osteoarthritic changes, and intra-articular injection of G141 is potentially an effective therapy to alleviate OA progression.
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Affiliation(s)
- Wei Xu
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Yangli Xie
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Quan Wang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Xiaofeng Wang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Fengtao Luo
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Siru Zhou
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Zuqiang Wang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Junlan Huang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Qiaoyan Tan
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Min Jin
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Huabing Qi
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Junzhou Tang
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Liang Chen
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Xiaolan Du
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Chengguang Zhao
- Institute of Biological and Natural Medicine, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Guang Liang
- Institute of Biological and Natural Medicine, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325035, China
| | - Lin Chen
- Department of Rehabilitation Medicine, Center of Bone Metabolism and Repair, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, China
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Duan L, Liang Y, Ma B, Zhu W, Wang D. Epigenetic regulation in chondrocyte phenotype maintenance for cell-based cartilage repair. Am J Transl Res 2015; 7:2127-2140. [PMID: 26807163 PMCID: PMC4697695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 10/11/2015] [Indexed: 06/05/2023]
Abstract
Loss of hyaline chondrocyte phenotype during the monolayer culture in vitro is a major obstacle for cell-based articular cartilage repair. Increasing evidence implicates an important role of the epigenetic regulation in maintaining the chondrocyte phenotype. DNA methylation, histone modifications and microRNAs have all been shown to contribute to chondrocyte dedifferentiation and hypertrophy. Moreover, the interplay among epigenetic regulators forms a complicated epigenetic network in regulating chondrocyte dedifferentiation. This review provides a detailed overview of the epigenetic regulation in maintaining the chondrocyte phenotype for chondrocyte-based cartilage repair.
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Affiliation(s)
- Li Duan
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
- Department of Orthopedics, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
| | - Yujie Liang
- School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate SchoolShenzhen 518000, Guangdong Province, China
| | - Bin Ma
- Division of Immunology, University Children’s Hospital ZurichZurich 8032, Switzerland
| | - Weimin Zhu
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
- Department of Orthopedics, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
| | - Daping Wang
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
- Department of Orthopedics, Shenzhen Second People’s HospitalShenzhen 518035, Guangdong Province, China
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15
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Ito R, Shimada H, Yazawa K, Sato I, Imai Y, Sugawara A, Yokoyama A. Hydroxylation of methylated DNA by TET1 in chondrocyte differentiation of C3H10T1/2 cells. Biochem Biophys Rep 2015; 5:134-140. [PMID: 28955815 PMCID: PMC5600463 DOI: 10.1016/j.bbrep.2015.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/05/2015] [Accepted: 11/10/2015] [Indexed: 02/06/2023] Open
Abstract
DNA methylation is closely involved in the regulation of cellular differentiation, including chondrogenic differentiation of mesenchymal stem cells. Recent studies showed that Ten-eleven translocation (TET) family proteins converted 5-methylcytosine (5mC) to 5-hydroxymethylcytosine, 5-formylcytosine and 5carboxylcytosine by oxidation. These reactions constitute potential mechanisms for active demethylation of methylated DNA. However, the relationship between the DNA methylation patterns and the effects of TET family proteins in chondrocyte differentiation is still unclear. In this study, we showed that DNA hydroxylation of 5mC was increased during chondrocytic differentiation of C3H10T1/2 cells and that the expression of Tet1 was particularly enhanced. Moreover, knockdown experiments revealed that the downregulation of Tet1 expression caused decreases in chondrogenesis markers such as type 2 and type 10 collagens. Furthermore, we found that TET proteins had a site preference for hydroxylation of 5mC on the Insulin-like growth factor 1 (Igf1) promoter in chondrocytes. Taken together, we showed that the expression of Tet1 was specifically facilitated in chondrocyte differentiation and Tet1 can regulate chondrocyte marker gene expression presumably through its hydroxylation activity for DNA.
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Affiliation(s)
- Ryo Ito
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroki Shimada
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kengo Yazawa
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ikuko Sato
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuuki Imai
- Division of Integrative Pathophysiology, Proteo-Science Center, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Akira Sugawara
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsushi Yokoyama
- Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan
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17
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Sun MMG, Beier F. Chondrocyte hypertrophy in skeletal development, growth, and disease. ACTA ACUST UNITED AC 2015; 102:74-82. [PMID: 24677724 DOI: 10.1002/bdrc.21062] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 02/27/2014] [Indexed: 12/31/2022]
Abstract
Most of our bones form through the process of endochondral ossification, which is tightly regulated by the activity of the cartilage growth plate. Chondrocyte maturation through the various stages of growth plate physiology ultimately results in hypertrophy. Chondrocyte hypertrophy is an essential contributor to longitudinal bone growth, but recent data suggest that these cells also play fundamental roles in signaling to other skeletal cells, thus coordinating endochondral ossification. On the other hand, ectopic hypertrophy of articular chondrocytes has been implicated in the pathogenesis of osteoarthritis. Thus, a better understanding of the processes that control chondrocyte hypertrophy in the growth plate as well as in articular cartilage is required for improved management of both skeletal growth disorders and osteoarthritis. This review summarizes recent findings on the regulation of hypertrophic chondrocyte differentiation, the cellular mechanisms involved in hypertrophy, and the role of chondrocyte hypertrophy in skeletal physiology and pathophysiology.
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Affiliation(s)
- Margaret Man-Ger Sun
- Department of Physiology and Pharmacology, Western University, and Children's Health Research Institute, London, Ontario, Canada
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18
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Li J, Ohliger J, Pei M. Significance of epigenetic landscape in cartilage regeneration from the cartilage development and pathology perspective. Stem Cells Dev 2014; 23:1178-94. [PMID: 24555773 DOI: 10.1089/scd.2014.0002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Regenerative therapies for cartilage defects have been greatly advanced by progress in both the stem cell biology and tissue engineering fields. Despite notable successes, significant barriers remain including shortage of autologous cell sources and generation of a stable chondrocyte phenotype using progenitor cells. Increasing demands for the treatment of degenerative diseases, such as osteoarthritis and rheumatoid arthritis, highlight the importance of epigenetic remodeling in cartilage regeneration. Epigenetic regulatory mechanisms, such as microRNAs, DNA methylation, and histone modifications, have been intensively studied due to their direct regulatory role on gene expression. However, a thorough understanding of the environmental factors that initiate these epigenetic events may provide greater insight into the prevention of degenerative diseases and improve the efficacy of treatments. In other words, if we could identify a specific factor from the environment and its downstream signaling events, then we could stop or retard degradation and enhance cartilage regeneration. A more operational definition of epigenetic remodeling has recently been proposed by categorizing the signals during the epigenetic process into epigenators, initiators, and maintainers. This review seeks to compile and reorganize the existing literature pertaining to epigenetic remodeling events placing emphasis on perceiving the landscape of epigenetic mechanisms during cartilage regeneration with the new operational definition, especially from the environmental factors' point of view. Progress in understanding epigenetic regulatory mechanisms could benefit cartilage regeneration and engineering on a larger scale and provide more promising therapeutic applications.
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Affiliation(s)
- Jingting Li
- 1 Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University , Morgantown, West Virginia
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