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Chen X, Huang MF, Fan DM, He YH, Zhang WJ, Ding JC, Peng BL, Pan X, Liu Y, Du J, Li Y, Liu ZY, Xie BL, Kuang ZJ, Yi J, Liu W. CARM1 hypermethylates the NuRD chromatin remodeling complex to promote cell cycle gene expression and breast cancer development. Nucleic Acids Res 2024; 52:6811-6829. [PMID: 38676947 PMCID: PMC11229315 DOI: 10.1093/nar/gkae329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/25/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024] Open
Abstract
Protein arginine methyltransferase CARM1 has been shown to methylate a large number of non-histone proteins, and play important roles in gene transcriptional activation, cell cycle progress, and tumorigenesis. However, the critical substrates through which CARM1 exerts its functions remain to be fully characterized. Here, we reported that CARM1 directly interacts with the GATAD2A/2B subunit in the nucleosome remodeling and deacetylase (NuRD) complex, expanding the activities of NuRD to include protein arginine methylation. CARM1 and NuRD bind and activate a large cohort of genes with implications in cell cycle control to facilitate the G1 to S phase transition. This gene activation process requires CARM1 to hypermethylate GATAD2A/2B at a cluster of arginines, which is critical for the recruitment of the NuRD complex. The clinical significance of this gene activation mechanism is underscored by the high expression of CARM1 and NuRD in breast cancers, and the fact that knockdown CARM1 and NuRD inhibits cancer cell growth in vitro and tumorigenesis in vivo. Targeting CARM1-mediated GATAD2A/2B methylation with CARM1 specific inhibitors potently inhibit breast cancer cell growth in vitro and tumorigenesis in vivo. These findings reveal a gene activation program that requires arginine methylation established by CARM1 on a key chromatin remodeler, and targeting such methylation might represent a promising therapeutic avenue in the clinic.
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Affiliation(s)
- Xue Chen
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Xiang An Biomedicine Laboratory, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Ming-feng Huang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Da-meng Fan
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Xiang An Biomedicine Laboratory, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Yao-hui He
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Wen-juan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, No. 23, Qingnian Road, Ganzhou, Jiangxi 341000, China
| | - Jian-cheng Ding
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Bing-ling Peng
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Xu Pan
- Xiamen University-Amogene Joint R&D Center for Genetic Diagnostics, School of Pharmaceutical Sciences, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Ya Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Jun Du
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Ying Li
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Zhi-ying Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Bing-lan Xie
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Zhi-jian Kuang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Jia Yi
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
| | - Wen Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
- Xiang An Biomedicine Laboratory, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang’an South Road, Xiamen, Fujian 361102, China
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Freund MM, Harrison MM, Torres-Zelada EF. Exploring the reciprocity between pioneer factors and development. Development 2024; 151:dev201921. [PMID: 38958075 PMCID: PMC11266817 DOI: 10.1242/dev.201921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Development is regulated by coordinated changes in gene expression. Control of these changes in expression is largely governed by the binding of transcription factors to specific regulatory elements. However, the packaging of DNA into chromatin prevents the binding of many transcription factors. Pioneer factors overcome this barrier owing to unique properties that enable them to bind closed chromatin, promote accessibility and, in so doing, mediate binding of additional factors that activate gene expression. Because of these properties, pioneer factors act at the top of gene-regulatory networks and drive developmental transitions. Despite the ability to bind target motifs in closed chromatin, pioneer factors have cell type-specific chromatin occupancy and activity. Thus, developmental context clearly shapes pioneer-factor function. Here, we discuss this reciprocal interplay between pioneer factors and development: how pioneer factors control changes in cell fate and how cellular environment influences pioneer-factor binding and activity.
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Affiliation(s)
- Meghan M. Freund
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI 52706, USA
| | - Melissa M. Harrison
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI 52706, USA
| | - Eliana F. Torres-Zelada
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI 52706, USA
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Stouth DW, vanLieshout TL, Mikhail AI, Ng SY, Raziee R, Edgett BA, Vasam G, Webb EK, Gilotra KS, Markou M, Pineda HC, Bettencourt-Mora BG, Noor H, Moll Z, Bittner ME, Gurd BJ, Menzies KJ, Ljubicic V. CARM1 drives mitophagy and autophagy flux during fasting-induced skeletal muscle atrophy. Autophagy 2024; 20:1247-1269. [PMID: 38018843 PMCID: PMC11210918 DOI: 10.1080/15548627.2023.2288528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 11/20/2023] [Indexed: 11/30/2023] Open
Abstract
CARM1 (coactivator associated arginine methyltransferase 1) has recently emerged as a powerful regulator of skeletal muscle biology. However, the molecular mechanisms by which the methyltransferase remodels muscle remain to be fully understood. In this study, carm1 skeletal muscle-specific knockout (mKO) mice exhibited lower muscle mass with dysregulated macroautophagic/autophagic and atrophic signaling, including depressed AMP-activated protein kinase (AMPK) site-specific phosphorylation of ULK1 (unc-51 like autophagy activating kinase 1; Ser555) and FOXO3 (forkhead box O3; Ser588), as well as MTOR (mechanistic target of rapamycin kinase)-induced inhibition of ULK1 (Ser757), along with AKT/protein kinase B site-specific suppression of FOXO1 (Ser256) and FOXO3 (Ser253). In addition to lower mitophagy and autophagy flux in skeletal muscle, carm1 mKO led to increased mitochondrial PRKN/parkin accumulation, which suggests that CARM1 is required for basal mitochondrial turnover and autophagic clearance. carm1 deletion also elicited PPARGC1A (PPARG coactivator 1 alpha) activity and a slower, more oxidative muscle phenotype. As such, these carm1 mKO-evoked adaptations disrupted mitophagy and autophagy induction during food deprivation and collectively served to mitigate fasting-induced muscle atrophy. Furthermore, at the threshold of muscle atrophy during food deprivation experiments in humans, skeletal muscle CARM1 activity decreased similarly to our observations in mice, and was accompanied by site-specific activation of ULK1 (Ser757), highlighting the translational impact of the methyltransferase in human skeletal muscle. Taken together, our results indicate that CARM1 governs mitophagic, autophagic, and atrophic processes fundamental to the maintenance and remodeling of muscle mass. Targeting the enzyme may provide new therapeutic approaches for mitigating skeletal muscle atrophy.Abbreviation: ADMA: asymmetric dimethylarginine; AKT/protein kinase B: AKT serine/threonine kinase; AMPK: AMP-activated protein kinase; ATG: autophagy related; BECN1: beclin 1; BNIP3: BCL2 interacting protein 3; CARM1: coactivator associated arginine methyltransferase 1; Col: colchicine; CSA: cross-sectional area; CTNS: cystinosin, lysosomal cystine transporter; EDL: extensor digitorum longus; FBXO32/MAFbx: F-box protein 32; FOXO: forkhead box O; GAST: gastrocnemius; H2O2: hydrogen peroxide; IMF: intermyofibrillar; LAMP1: lysosomal associated membrane protein 1; MAP1LC3B: microtubule associated protein 1 light chain 3 beta; mKO: skeletal muscle-specific knockout; MMA: monomethylarginine; MTOR: mechanistic target of rapamycin kinase; MYH: myosin heavy chain; NFE2L2/NRF2: NFE2 like bZIP transcription factor 2; OXPHOS: oxidative phosphorylation; PABPC1/PABP1: poly(A) binding protein cytoplasmic 1; PPARGC1A/PGC-1α: PPARG coactivator 1 alpha; PRKN/parkin: parkin RBR E3 ubiquitin protein ligase; PRMT: protein arginine methyltransferase; Sal: saline; SDMA: symmetric dimethylarginine; SIRT1: sirtuin 1; SKP2: S-phase kinase associated protein 2; SMARCC1/BAF155: SWI/SNF related, matrix associated, actin dependent regulator of chromatin subfamily c member 1; SOL: soleus; SQSTM1/p62: sequestosome 1; SS: subsarcolemmal; TA: tibialis anterior; TFAM: transcription factor A, mitochondrial; TFEB: transcription factor EB; TOMM20: translocase of outer mitochondrial membrane 20; TRIM63/MuRF1: tripartite motif containing 63; ULK1: unc-51 like autophagy activating kinase 1; VPS11: VPS11 core subunit of CORVET and HOPS complexes; WT: wild-type.
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Affiliation(s)
- Derek W. Stouth
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | | | - Andrew I. Mikhail
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Sean Y. Ng
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Rozhin Raziee
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Brittany A. Edgett
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Goutham Vasam
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Erin K. Webb
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Kevin S. Gilotra
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Matthew Markou
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Hannah C. Pineda
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | | | - Haleema Noor
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Zachary Moll
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Megan E. Bittner
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Brendon J. Gurd
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Keir J. Menzies
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Institute of Systems Biology and the Centre for Neuromuscular Disease, Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Vladimir Ljubicic
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
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Xie Z, Tian Y, Guo X, Xie N. The emerging role of CARM1 in cancer. Cell Oncol (Dordr) 2024:10.1007/s13402-024-00943-9. [PMID: 38619752 DOI: 10.1007/s13402-024-00943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2024] [Indexed: 04/16/2024] Open
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1), pivotal for catalyzing arginine methylation of histone and non-histone proteins, plays a crucial role in developing various cancers. CARM1 was initially recognized as a transcriptional coregulator by orchestrating chromatin remodeling, transcription regulation, mRNA splicing and stability. This diverse functionality contributes to the recruitment of transcription factors that foster malignancies. Going beyond its established involvement in transcriptional control, CARM1-mediated methylation influences a spectrum of biological processes, including the cell cycle, metabolism, autophagy, redox homeostasis, and inflammation. By manipulating these physiological functions, CARM1 becomes essential in critical processes such as tumorigenesis, metastasis, and therapeutic resistance. Consequently, it emerges as a viable target for therapeutic intervention and a possible biomarker for medication response in specific cancer types. This review provides a comprehensive exploration of the various physiological functions of CARM1 in the context of cancer. Furthermore, we discuss potential CARM1-targeting pharmaceutical interventions for cancer therapy.
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Affiliation(s)
- Zizhuo Xie
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Yuan Tian
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Xiaohan Guo
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Na Xie
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China.
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Jiogo H, Crist C. Navigating translational control of gene expression in satellite cells. Curr Top Dev Biol 2024; 158:253-277. [PMID: 38670709 DOI: 10.1016/bs.ctdb.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Satellite cells, named for their satellite position around the sarcolemma of the myofibre, are responsible for skeletal muscle regeneration. Satellite cells normally reside in a quiescent state, but rapidly activate the myogenic program and the cell cycle in response to injury. Translational control of gene expression has emerged as an important regulator of satellite cell activity. Quiescent satellite cells maintain low levels of protein synthesis and selectively translate specific mRNAs to conserve limited energy. Activated satellite cells rapidly restore global protein synthesis to meet the demands of proliferating myogenic progenitors that participate in muscle repair. We propose a model by which translational control enables rapid protein level changes in response to injury-induced environmental shifts, serving as both a brake mechanism during quiescence and an accelerator for injury response. In this Chapter, we navigate the processing, translation and metabolism of newly transcribed mRNAs. We review the modifications of mRNA that occur during mRNA processing in the nucleus of satellite cells, and illustrate how these modifications impact the translation and stability of mRNAs. In the cytoplasm, we review how pathways work in concert to regulate protein synthesis globally, while trans acting microRNAs and RNA binding proteins modify specific mRNA translation within a context of tightly regulated protein synthesis. While navigating translational control of gene expression in satellite cells, this chapter reveals that despite significant progress, the field remains nascent in the broader scope of translational control in cell biology. We propose that future investigations will benefit from incorporating emerging global analyses to study translational control of gene expression in rare satellite cells, and we pose unanswered questions that warrant future exploration.
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Affiliation(s)
- Holly Jiogo
- Department of Human Genetics, McGill University, Montreal, QC, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Colin Crist
- Department of Human Genetics, McGill University, Montreal, QC, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.
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6
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Robertson R, Li S, Filippelli RL, Chang NC. Muscle stem cell dysfunction in rhabdomyosarcoma and muscular dystrophy. Curr Top Dev Biol 2024; 158:83-121. [PMID: 38670717 DOI: 10.1016/bs.ctdb.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Muscle stem cells (MuSCs) are crucial to the repair and homeostasis of mature skeletal muscle. MuSC dysfunction and dysregulation of the myogenic program can contribute to the development of pathology ranging from cancers like rhabdomyosarcoma (RMS) or muscle degenerative diseases such as Duchenne muscular dystrophy (DMD). Both diseases exhibit dysregulation at nearly all steps of myogenesis. For instance, MuSC self-renewal processes are altered. In RMS, this leads to the creation of tumor propagating cells. In DMD, impaired asymmetric stem cell division creates a bias towards producing self-renewing stem cells instead of committing to differentiation. Hyperproliferation of these cells contribute to tumorigenesis in RMS and symmetric expansion of the self-renewing MuSC population in DMD. Both diseases also exhibit a repression of factors involved in terminal differentiation, halting RMS cells in the proliferative stage and thus driving tumor growth. Conversely, the MuSCs in DMD exhibit impaired differentiation and fuse prematurely, affecting myonuclei maturation and the integrity of the dystrophic muscle fiber. Finally, both disease states cause alterations to the MuSC niche. Various elements of the niche such as inflammatory and migratory signaling that impact MuSC behavior are dysregulated. Here we show how these seemingly distantly related diseases indeed have similarities in MuSC dysfunction, underlying the importance of considering MuSCs when studying the pathophysiology of muscle diseases.
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Affiliation(s)
- Rebecca Robertson
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada
| | - Shulei Li
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada; Rosalind and Morris Goodman Cancer Institute, McGill University, Montréal, QC, Canada
| | - Romina L Filippelli
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada
| | - Natasha C Chang
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada; Rosalind and Morris Goodman Cancer Institute, McGill University, Montréal, QC, Canada.
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Geara P, Dilworth FJ. Epigenetic integration of signaling from the regenerative environment. Curr Top Dev Biol 2024; 158:341-374. [PMID: 38670712 DOI: 10.1016/bs.ctdb.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Skeletal muscle has an extraordinary capacity to regenerate itself after injury due to the presence of tissue-resident muscle stem cells. While these muscle stem cells are the primary contributor to the regenerated myofibers, the process occurs in a regenerative microenvironment where multiple different cell types act in a coordinated manner to clear the damaged myofibers and restore tissue homeostasis. In this regenerative environment, immune cells play a well-characterized role in initiating repair by establishing an inflammatory state that permits the removal of dead cells and necrotic muscle tissue at the injury site. More recently, it has come to be appreciated that the immune cells also play a crucial role in communicating with the stem cells within the regenerative environment to help coordinate the timing of repair events through the secretion of cytokines, chemokines, and growth factors. Evidence also suggests that stem cells can help modulate the extent of the inflammatory response by signaling to the immune cells, demonstrating a cross-talk between the different cells in the regenerative environment. Here, we review the current knowledge on the innate immune response to sterile muscle injury and provide insight into the epigenetic mechanisms used by the cells in the regenerative niche to integrate the cellular cross-talk required for efficient muscle repair.
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Affiliation(s)
- Perla Geara
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, United States
| | - F Jeffrey Dilworth
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, United States.
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8
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Santarelli P, Rosti V, Vivo M, Lanzuolo C. Chromatin organization of muscle stem cell. Curr Top Dev Biol 2024; 158:375-406. [PMID: 38670713 DOI: 10.1016/bs.ctdb.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
The proper functioning of skeletal muscles is essential throughout life. A crucial crosstalk between the environment and several cellular mechanisms allows striated muscles to perform successfully. Notably, the skeletal muscle tissue reacts to an injury producing a completely functioning tissue. The muscle's robust regenerative capacity relies on the fine coordination between muscle stem cells (MuSCs or "satellite cells") and their specific microenvironment that dictates stem cells' activation, differentiation, and self-renewal. Critical for the muscle stem cell pool is a fine regulation of chromatin organization and gene expression. Acquiring a lineage-specific 3D genome architecture constitutes a crucial modulator of muscle stem cell function during development, in the adult stage, in physiological and pathological conditions. The context-dependent relationship between genome structure, such as accessibility and chromatin compartmentalization, and their functional effects will be analysed considering the improved 3D epigenome knowledge, underlining the intimate liaison between environmental encounters and epigenetics.
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Affiliation(s)
- Philina Santarelli
- INGM Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, Milan, Italy
| | - Valentina Rosti
- INGM Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, Milan, Italy; CNR Institute of Biomedical Technologies, Milan, Italy
| | - Maria Vivo
- Università degli studi di Salerno, Fisciano, Italy.
| | - Chiara Lanzuolo
- INGM Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, Milan, Italy; CNR Institute of Biomedical Technologies, Milan, Italy.
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Gouhier A, Dumoulin-Gagnon J, Lapointe-Roberge V, Harris J, Balsalobre A, Drouin J. Pioneer factor Pax7 initiates two-step cell-cycle-dependent chromatin opening. Nat Struct Mol Biol 2024; 31:92-101. [PMID: 38177665 DOI: 10.1038/s41594-023-01152-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 10/16/2023] [Indexed: 01/06/2024]
Abstract
Pioneer transcription factors direct cell differentiation by deploying new enhancer repertoires through their unique ability to target and initiate remodelling of closed chromatin. The initial steps of their action remain undefined, although pioneers have been shown to interact with nucleosomal target DNA and with some chromatin-remodeling complexes. We now define the sequence of events that enables the pioneer Pax7 with its unique abilities. Chromatin condensation exerted by linker histone H1 is the first constraint on Pax7 recruitment, and this establishes the initial speed of chromatin remodeling. The first step of pioneer action involves recruitment of the KDM1A (LSD1) H3K9me2 demethylase for removal of this repressive mark, as well as recruitment of the MLL complex for deposition of the activating H3K4me1 mark. Further progression of pioneer action requires passage through cell division, and this involves dissociation of pioneer targets from perinuclear lamin B. Only then are the SWI-SNF remodeling complex and the coactivator p300 recruited, leading to nucleosome displacement and enhancer activation. Thus, the unique features of pioneer actions are those occurring in the lamin-associated compartment of the nucleus. This model is consistent with previous work that showed a dependence on cell division for establishment of new cell fates.
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Affiliation(s)
- Arthur Gouhier
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Justine Dumoulin-Gagnon
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada
| | - Vincent Lapointe-Roberge
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Juliette Harris
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada
| | - Aurelio Balsalobre
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada
| | - Jacques Drouin
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM) Montreal, Quebec, Canada.
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada.
- Département de Biochimie, Université de Montréal, Montreal, Quebec, Canada.
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10
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Shao A, Kissil JL, Fan CM. The L27 Domain of MPP7 enhances TAZ-YY1 Cooperation to Renew Muscle Stem Cells. RESEARCH SQUARE 2023:rs.3.rs-3673774. [PMID: 38077061 PMCID: PMC10705706 DOI: 10.21203/rs.3.rs-3673774/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Stem cells regenerate differentiated cells to maintain and repair tissues and organs. They also replenish themselves, i.e. self-renewal, for the regenerative process to last a lifetime. How stem cells renew is of critical biological and medical significance. Here we use the skeletal muscle stem cell (MuSC) to study this process. Using a combination of genetic, molecular, and biochemical approaches, we show that MPP7, AMOT, and TAZ/YAP form a complex that activates a common set of target genes. Among these targets, Carm1 can direct MuSC renewal. In the absence of MPP7, TAZ can support regenerative progenitors and activate Carm1 expression, but not to a level needed for self-renewal. Facilitated by the actin polymerization-responsive AMOT, TAZ recruits the L27 domain of MPP7 to up-regulate Carm1 to the level necessary to drive MuSC renewal. The promoter of Carm1, and those of other common downstream genes, also contain binding site(s) for YY1. We further demonstrate that the L27 domain of MPP7 enhances the interaction between TAZ and YY1 to activate Carm1. Our results define a renewal transcriptional program embedded within the progenitor program, by selectively up-regulating key gene(s) within the latter, through the combination of protein interactions and in a manner dependent on the promoter context.
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Affiliation(s)
- Anwen Shao
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
| | - Joseph L. Kissil
- Department of Molecular Oncology, The H. Lee Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612
| | - Chen-Ming Fan
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
- Department of Biology, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218
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11
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Kim KH, Oprescu SN, Snyder MM, Kim A, Jia Z, Yue F, Kuang S. PRMT5 mediates FoxO1 methylation and subcellular localization to regulate lipophagy in myogenic progenitors. Cell Rep 2023; 42:113329. [PMID: 37883229 PMCID: PMC10727913 DOI: 10.1016/j.celrep.2023.113329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/29/2023] [Accepted: 10/06/2023] [Indexed: 10/28/2023] Open
Abstract
Development is regulated by various factors, including protein methylation status. While PRMT5 is well known for its roles in oncogenesis by mediating symmetric di-methylation of arginine, its role in normal development remains elusive. Using Myod1Cre to drive Prmt5 knockout in embryonic myoblasts (Prmt5MKO), we dissected the role of PRMT5 in myogenesis. The Prmt5MKO mice are born normally but exhibit progressive muscle atrophy and premature death. Prmt5MKO inhibits proliferation and promotes premature differentiation of embryonic myoblasts, reducing the number and regenerative function of satellite cells in postnatal mice. Mechanistically, PRMT5 methylates and destabilizes FoxO1. Prmt5MKO increases the total FoxO1 level and promotes its cytoplasmic accumulation, leading to activation of autophagy and depletion of lipid droplets (LDs). Systemic inhibition of autophagy in Prmt5MKO mice restores LDs in myoblasts and moderately improves muscle regeneration. Together, PRMT5 is essential for muscle development and regeneration at least partially through mediating FoxO1 methylation and LD turnover.
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Affiliation(s)
- Kun Ho Kim
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Stephanie N Oprescu
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Madigan M Snyder
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Aran Kim
- Department of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Zhihao Jia
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Feng Yue
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Shihuan Kuang
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA.
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12
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Endo T. Postnatal skeletal muscle myogenesis governed by signal transduction networks: MAPKs and PI3K-Akt control multiple steps. Biochem Biophys Res Commun 2023; 682:223-243. [PMID: 37826946 DOI: 10.1016/j.bbrc.2023.09.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/06/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023]
Abstract
Skeletal muscle myogenesis represents one of the most intensively and extensively examined systems of cell differentiation, tissue formation, and regeneration. Muscle regeneration provides an in vivo model system of postnatal myogenesis. It comprises multiple steps including muscle stem cell (or satellite cell) quiescence, activation, migration, myogenic determination, myoblast proliferation, myocyte differentiation, myofiber maturation, and hypertrophy. A variety of extracellular signaling and subsequent intracellular signal transduction pathways or networks govern the individual steps of postnatal myogenesis. Among them, MAPK pathways (the ERK, JNK, p38 MAPK, and ERK5 pathways) and PI3K-Akt signaling regulate multiple steps of myogenesis. Ca2+, cytokine, and Wnt signaling also participate in several myogenesis steps. These signaling pathways often control cell cycle regulatory proteins or the muscle-specific MyoD family and the MEF2 family of transcription factors. This article comprehensively reviews molecular mechanisms of the individual steps of postnatal skeletal muscle myogenesis by focusing on signal transduction pathways or networks. Nevertheless, no or only a partial signaling molecules or pathways have been identified in some responses during myogenesis. The elucidation of these unidentified signaling molecules and pathways leads to an extensive understanding of the molecular mechanisms of myogenesis.
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Affiliation(s)
- Takeshi Endo
- Department of Biology, Graduate School of Science, Chiba University, Yayoicho, Inageku, Chiba, Chiba 263-8522, Japan.
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13
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Shao A, Kissil JL, Fan CM. The L27 Domain of MPP7 enhances TAZ-YY1 Cooperation to Renew Muscle Stem Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.01.565166. [PMID: 37961392 PMCID: PMC10635061 DOI: 10.1101/2023.11.01.565166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Stem cells regenerate differentiated cells to maintain and repair tissues and organs. They also replenish themselves, i.e. self-renewal, for the regenerative process to last a lifetime. How stem cells renew is of critical biological and medical significance. Here we use the skeletal muscle stem cell (MuSC) to study this process. Using a combination of genetic, molecular, and biochemical approaches, we show that MPP7, AMOT, and TAZ/YAP form a complex that activates a common set of target genes. Among these targets, Carm1 can direct MuSC renewal. In the absence of MPP7, TAZ can support regenerative progenitors and activate Carm1 expression, but not to a level needed for self-renewal. Facilitated by the actin polymerization-responsive AMOT, TAZ recruits the L27 domain of MPP7 to up-regulate Carm1 to the level necessary to drive MuSC renewal. The promoter of Carm1, and those of other common downstream genes, also contain binding site(s) for YY1. We further demonstrate that the L27 domain of MPP7 enhances the interaction between TAZ and YY1 to activate Carm1. Our results define a renewal transcriptional program embedded within the progenitor program, by selectively up-regulating key gene(s) within the latter, through the combination of protein interactions and in a manner dependent on the promoter context.
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Affiliation(s)
- Anwen Shao
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
| | - Joseph L. Kissil
- Department of Molecular Oncology, The H. Lee Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612
| | - Chen-Ming Fan
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
- Department of Biology, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218
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14
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Ma Z, Lyu X, Qin N, Liu H, Zhang M, Lai Y, Dong B, Lu P. Coactivator-associated arginine methyltransferase 1: A versatile player in cell differentiation and development. Genes Dis 2023; 10:2383-2392. [PMID: 37554200 PMCID: PMC10404874 DOI: 10.1016/j.gendis.2022.05.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/19/2022] [Accepted: 05/11/2022] [Indexed: 11/26/2022] Open
Abstract
Protein arginine methylation is a common post-translational modification involved in the regulation of various cellular functions. Coactivator-associated arginine methyltransferase 1 (CARM1) is a protein arginine methyltransferase that asymmetrically dimethylates histone H3 and non-histone proteins to regulate gene transcription. CARM1 has been found to play important roles in cell differentiation and development, cell cycle progression, autophagy, metabolism, pre-mRNA splicing and transportation, and DNA replication. In this review, we describe the molecular characteristics of CARM1 and summarize its roles in the regulation of cell differentiation and development in mammals.
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Affiliation(s)
- Zhongrui Ma
- Medical Research Center, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
- Department of Immunology, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Xinxing Lyu
- Medical Research Center, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Ning Qin
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Haoyu Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Mengrui Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Yongchao Lai
- Medical Research Center, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
| | - Bo Dong
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
| | - Peiyuan Lu
- Medical Research Center, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
- Department of Immunology, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
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15
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Santos M, Hwang JW, Bedford MT. CARM1 arginine methyltransferase as a therapeutic target for cancer. J Biol Chem 2023; 299:105124. [PMID: 37536629 PMCID: PMC10474102 DOI: 10.1016/j.jbc.2023.105124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/05/2023] Open
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1) is an arginine methyltransferase that posttranslationally modifies proteins that regulate multiple levels of RNA production and processing. Its substrates include histones, transcription factors, coregulators of transcription, and splicing factors. CARM1 is overexpressed in many different cancer types, and often promotes transcription factor programs that are co-opted as drivers of the transformed cell state, a process known as transcription factor addiction. Targeting these oncogenic transcription factor pathways is difficult but could be addressed by removing the activity of the key coactivators on which they rely. CARM1 is ubiquitously expressed, and its KO is less detrimental in embryonic development than deletion of the arginine methyltransferases protein arginine methyltransferase 1 and protein arginine methyltransferase 5, suggesting that therapeutic targeting of CARM1 may be well tolerated. Here, we will summarize the normal in vivo functions of CARM1 that have been gleaned from mouse studies, expand on the transcriptional pathways that are regulated by CARM1, and finally highlight recent studies that have identified oncogenic properties of CARM1 in different biological settings. This review is meant to kindle an interest in the development of human drug therapies targeting CARM1, as there are currently no CARM1 inhibitors available for use in clinical trials.
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Affiliation(s)
- Margarida Santos
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Jee Won Hwang
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mark T Bedford
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
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16
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Webb EK, Ng SY, Mikhail AI, Stouth DW, vanLieshout TL, Syroid AL, Ljubicic V. Impact of short-term, pharmacological CARM1 inhibition on skeletal muscle mass, function, and atrophy in mice. Am J Physiol Endocrinol Metab 2023; 325:E252-E266. [PMID: 37493245 PMCID: PMC10625826 DOI: 10.1152/ajpendo.00047.2023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/20/2023] [Accepted: 07/20/2023] [Indexed: 07/27/2023]
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1) catalyzes the methylation of arginine residues on target proteins critical for health and disease. The purpose of this study was to characterize the effects of short-term, pharmacological CARM1 inhibition on skeletal muscle size, function, and atrophy. Adult mice (n = 10 or 11/sex) were treated with either a CARM1 inhibitor (150 mg/kg EZM2302; EZM) or vehicle (Veh) via oral gavage for 11-13 days and muscle mass, function, and exercise capacity were assessed. In addition, we investigated the effect of CARM1 suppression on unilateral hindlimb denervation (DEN)-induced muscle atrophy (n = 8/sex). We report that CARM1 inhibition caused significant reductions in the asymmetric dimethylation of known CARM1 substrates but no change in CARM1 protein or mRNA content in skeletal muscle. Reduced CARM1 activity did not affect body or muscle mass, however, we observed a decrease in exercise capacity and muscular endurance in male mice. CARM1 methyltransferase activity increased in the muscle of Veh-treated mice following 7 days of DEN, and this response was blunted in EZM-dosed mice. Skeletal muscle mass and myofiber cross-sectional area were significantly reduced in DEN compared with contralateral, non-DEN limbs to a similar degree in both treatment groups. Furthermore, skeletal muscle atrophy and autophagy gene expression programs were elevated in response to DEN independent of CARM1 suppression. Collectively, these results suggest that short-term, pharmacological CARM1 inhibition in adult animals affects muscle performance in a sex-specific manner but does not impact the maintenance and remodeling of skeletal muscle mass during conditions of neurogenic muscle atrophy.NEW & NOTEWORTHY Short-term pharmacological inhibition of coactivator-associated arginine methyltransferase 1 (CARM1) was effective at significantly reducing CARM1 methyltransferase function in skeletal muscle. CARM1 inhibition did not impact muscle mass, but exercise capacity was impaired, particularly in male mice, whereas morphological and molecular signatures of denervation-induced muscle atrophy were largely maintained in animals administered the inhibitor. Altogether, the role of CARM1 in neuromuscular biology remains complex and requires further investigation of its therapeutic potential in muscle-wasting conditions.
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Affiliation(s)
- Erin K Webb
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Sean Y Ng
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Andrew I Mikhail
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Derek W Stouth
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Tiffany L vanLieshout
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Anika L Syroid
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Vladimir Ljubicic
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
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17
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Zhang L, Jiao G, You Y, Li X, Liu J, Sun Z, Li Q, Dai Z, Ma J, Zhou H, Li G, Meng C, Chen Y. Arginine methylation of PPP1CA by CARM1 regulates glucose metabolism and affects osteogenic differentiation and osteoclastic differentiation. Clin Transl Med 2023; 13:e1369. [PMID: 37649137 PMCID: PMC10468565 DOI: 10.1002/ctm2.1369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND The imbalance between osteoblasts and osteoclasts may lead to osteoporosis. Osteoblasts and osteoclasts have different energy requirements, with aerobic glycolysis being the prominent metabolic feature of osteoblasts, while osteoclast differentiation and fusion are driven by oxidative phosphorylation. METHODS By polymerase chain reaction as well as Western blotting, we assayed coactivator-associated arginine methyltransferase 1 (CARM1) expression in bone tissue, the mouse precranial osteoblast cell line MC3T3-E1 and the mouse monocyte macrophage leukaemia cell line RAW264.7, and expression of related genes during osteogenic differentiation and osteoclast differentiation. Using gene overexpression (lentivirus) and loss-of-function approach (CRISPR/Cas9-mediated knockout) in vitro, we examined whether CARM1 regulates osteogenic differentiation and osteoblast differentiation by metabolic regulation. Transcriptomic assays and metabolomic assays were used to find the mechanism of action of CARM1. Furthermore, in vitro methylation assays were applied to clarify the arginine methylation site of PPP1CA by CARM1. RESULTS We discovered that CARM1 reprogrammed glucose metabolism in osteoblasts and osteoclasts from oxidative phosphorylation to aerobic glycolysis, thereby promoting osteogenic differentiation and inhibiting osteoclastic differentiation. In vivo experiments revealed that CARM1 significantly decreased bone loss in osteoporosis model mice. Mechanistically, CARM1 methylated R23 of PPP1CA, affected the dephosphorylation of AKT-T450 and AMPK-T172, and increased the activities of phosphofructokinase-1 and pructose-2,6-biphosphatase3, causing an up-regulation of glycolytic flux. At the same time, as a transcriptional coactivator, CARM1 regulated the expression of pyruvate dehydrogenase kinase 3, which resulted in the inhibition of pyruvate dehydrogenase activity and inhibition of the tricarboxylic acid cycle, leading to a subsequent decrease in the flux of oxidative phosphorylation. CONCLUSIONS These findings reveal for the first time the mechanism by which CARM1 affects both osteogenesis and osteoclast differentiation through metabolic regulation, which may represent a new feasible treatment strategy for osteoporosis.
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Affiliation(s)
- Lu Zhang
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of MicroorthopaedicsAffiliated Hospital of Shandong University of Traditional Chinese MedicineJinanShandongChina
- Department of Spine SurgeryAffiliated Hospital of Jining Medical UniversityJiningShandongChina
| | - Guangjun Jiao
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
| | - Yunhao You
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Xiang Li
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Jincheng Liu
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Zhenqian Sun
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Qinghui Li
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Zihan Dai
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Jinlong Ma
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
- Department of OrthopaedicsThe First Clinical College of Shandong UniversityJinanShandongChina
| | - Hongming Zhou
- Department of Spine SurgeryShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
- Department of Spine SurgeryLinyi Central HospitalLinyiShandongChina
| | - Gang Li
- Department of MicroorthopaedicsAffiliated Hospital of Shandong University of Traditional Chinese MedicineJinanShandongChina
| | - Chunyang Meng
- Department of Spine SurgeryAffiliated Hospital of Jining Medical UniversityJiningShandongChina
| | - Yunzhen Chen
- Department of Spine SurgeryQilu Hospital of Shandong UniversityJinanShandongChina
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18
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Torcal Garcia G, Kowenz-Leutz E, Tian TV, Klonizakis A, Lerner J, De Andres-Aguayo L, Sapozhnikova V, Berenguer C, Carmona MP, Casadesus MV, Bulteau R, Francesconi M, Peiro S, Mertins P, Zaret K, Leutz A, Graf T. Carm1-arginine methylation of the transcription factor C/EBPα regulates transdifferentiation velocity. eLife 2023; 12:e83951. [PMID: 37365888 PMCID: PMC10299824 DOI: 10.7554/elife.83951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
Here, we describe how the speed of C/EBPα-induced B cell to macrophage transdifferentiation (BMT) can be regulated, using both mouse and human models. The identification of a mutant of C/EBPα (C/EBPαR35A) that greatly accelerates BMT helped to illuminate the mechanism. Thus, incoming C/EBPα binds to PU.1, an obligate partner expressed in B cells, leading to the release of PU.1 from B cell enhancers, chromatin closing and silencing of the B cell program. Released PU.1 redistributes to macrophage enhancers newly occupied by C/EBPα, causing chromatin opening and activation of macrophage genes. All these steps are accelerated by C/EBPαR35A, initiated by its increased affinity for PU.1. Wild-type C/EBPα is methylated by Carm1 at arginine 35 and the enzyme's perturbations modulate BMT velocity as predicted from the observations with the mutant. Increasing the proportion of unmethylated C/EBPα in granulocyte/macrophage progenitors by inhibiting Carm1 biases the cell's differentiation toward macrophages, suggesting that cell fate decision velocity and lineage directionality are closely linked processes.
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Affiliation(s)
- Guillem Torcal Garcia
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | | | - Tian V Tian
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- Vall d’Hebron Institute of Oncology (VHIO)BarcelonaSpain
| | - Antonis Klonizakis
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Jonathan Lerner
- Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Luisa De Andres-Aguayo
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Valeriia Sapozhnikova
- Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
| | - Clara Berenguer
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Marcos Plana Carmona
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
| | - Maria Vila Casadesus
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- Vall d’Hebron Institute of Oncology (VHIO)BarcelonaSpain
| | - Romain Bulteau
- Laboratorie de Biologie et Modélisation de la Cellule, Université de LyonLyonFrance
| | - Mirko Francesconi
- Laboratorie de Biologie et Modélisation de la Cellule, Université de LyonLyonFrance
| | - Sandra Peiro
- Vall d’Hebron Institute of Oncology (VHIO)BarcelonaSpain
| | - Philipp Mertins
- Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
| | - Kenneth Zaret
- Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Achim Leutz
- Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
| | - Thomas Graf
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
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19
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Dominici C, Villarreal OD, Dort J, Heckel E, Wang YC, Ragoussis I, Joyal JS, Dumont N, Richard S. Inhibition of type I PRMTs reforms muscle stem cell identity enhancing their therapeutic capacity. eLife 2023; 12:84570. [PMID: 37285284 DOI: 10.7554/elife.84570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
In skeletal muscle, muscle stem cells (MuSC) are the main cells responsible for regeneration upon injury. In diseased skeletal muscle, it would be therapeutically advantageous to replace defective MuSCs, or rejuvenate them with drugs to enhance their self-renewal and ensure long-term regenerative potential. One limitation of the replacement approach has been the inability to efficiently expand MuSCs ex vivo, while maintaining their stemness and engraftment abilities. Herein, we show that inhibition of type I protein arginine methyltransferases (PRMTs) with MS023 increases the proliferative capacity of ex vivo cultured MuSCs. Single cell RNA sequencing (scRNAseq) of ex vivo cultured MuSCs revealed the emergence of subpopulations in MS023-treated cells which are defined by elevated Pax7 expression and markers of MuSC quiescence, both features of enhanced self-renewal. Furthermore, the scRNAseq identified MS023-specific subpopulations to be metabolically altered with upregulated glycolysis and oxidative phosphorylation (OxPhos). Transplantation of MuSCs treated with MS023 had a better ability to repopulate the MuSC niche and contributed efficiently to muscle regeneration following injury. Interestingly, the preclinical mouse model of Duchenne muscular dystrophy had increased grip strength with MS023 treatment. Our findings show that inhibition of type I PRMTs increased the proliferation capabilities of MuSCs with altered cellular metabolism, while maintaining their stem-like properties such as self-renewal and engraftment potential.
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Affiliation(s)
- Claudia Dominici
- Segal Cancer Center, Lady Davis Institute for Medical Research, McGill University, Montreal, Canada
- Departments of Human Genetics, McGill University, Montreal, Canada
| | - Oscar D Villarreal
- Segal Cancer Center, Lady Davis Institute for Medical Research, McGill University, Montreal, Canada
| | - Junio Dort
- CHU Sainte-Justine Research Center, Université de Montréal, Montréal, Canada
| | - Emilie Heckel
- CHU Sainte-Justine Research Center, Université de Montréal, Montréal, Canada
| | | | | | | | - Nicolas Dumont
- CHU Sainte-Justine Research Center, Université de Montréal, Montréal, Canada
| | - Stéphane Richard
- Segal Cancer Center, Lady Davis Institute for Medical Research, McGill University, Montreal, Canada
- Departments of Human Genetics, McGill University, Montreal, Canada
- Gerald Bronfman, Department of Oncology, McGill University, Montréal, Canada
- Departments of Medicine, McGill University, Montreal, Canada
- Departments of Biochemistry, McGill University, Montréal, Canada
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20
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Kodippili K, Rudnicki MA. Satellite cell contribution to disease pathology in Duchenne muscular dystrophy. Front Physiol 2023; 14:1180980. [PMID: 37324396 PMCID: PMC10266354 DOI: 10.3389/fphys.2023.1180980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/23/2023] [Indexed: 06/17/2023] Open
Abstract
Progressive muscle weakness and degeneration characterize Duchenne muscular dystrophy (DMD), a lethal, x-linked neuromuscular disorder that affects 1 in 5,000 boys. Loss of dystrophin protein leads to recurrent muscle degeneration, progressive fibrosis, chronic inflammation, and dysfunction of skeletal muscle resident stem cells, called satellite cells. Unfortunately, there is currently no cure for DMD. In this mini review, we discuss how satellite cells in dystrophic muscle are functionally impaired, and how this contributes to the DMD pathology, and the tremendous potential of restoring endogenous satellite cell function as a viable treatment strategy to treat this debilitating and fatal disease.
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Affiliation(s)
- Kasun Kodippili
- The Sprott Centre for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Michael A. Rudnicki
- The Sprott Centre for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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21
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Zhong Q, Zheng K, Li W, An K, Liu Y, Xiao X, Hai S, Dong B, Li S, An Z, Dai L. Post-translational regulation of muscle growth, muscle aging and sarcopenia. J Cachexia Sarcopenia Muscle 2023. [PMID: 37127279 DOI: 10.1002/jcsm.13241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 03/07/2023] [Accepted: 04/02/2023] [Indexed: 05/03/2023] Open
Abstract
Skeletal muscle makes up 30-40% of the total body mass. It is of great significance in maintaining digestion, inhaling and exhaling, sustaining body posture, exercising, protecting joints and many other aspects. Moreover, muscle is also an important metabolic organ that helps to maintain the balance of sugar and fat. Defective skeletal muscle function not only limits the daily activities of the elderly but also increases the risk of disability, hospitalization and death, placing a huge burden on society and the healthcare system. Sarcopenia is a progressive decline in muscle mass, muscle strength and muscle function with age caused by environmental and genetic factors, such as the abnormal regulation of protein post-translational modifications (PTMs). To date, many studies have shown that numerous PTMs, such as phosphorylation, acetylation, ubiquitination, SUMOylation, glycosylation, glycation, methylation, S-nitrosylation, carbonylation and S-glutathionylation, are involved in the regulation of muscle health and diseases. This article systematically summarizes the post-translational regulation of muscle growth and muscle atrophy and helps to understand the pathophysiology of muscle aging and develop effective strategies for diagnosing, preventing and treating sarcopenia.
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Affiliation(s)
- Qian Zhong
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Kun Zheng
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Wanmeng Li
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Kang An
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Liu
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xina Xiao
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shan Hai
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Biao Dong
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shuangqing Li
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zhenmei An
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lunzhi Dai
- Department of Endocrinology and Metabolism, General Practice Ward/International Medical Center Ward, General Practice Medical Center and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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22
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Lei S, Li C, She Y, Zhou S, Shi H, Chen R. Roles of super enhancers and enhancer RNAs in skeletal muscle development and disease. Cell Cycle 2023; 22:495-505. [PMID: 36184878 PMCID: PMC9928468 DOI: 10.1080/15384101.2022.2129240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/09/2022] [Accepted: 09/21/2022] [Indexed: 11/03/2022] Open
Abstract
Skeletal muscle development is a multistep biological process regulated by a variety of myogenic regulatory factors, including MyoG, MyoD, Myf5, and Myf6 (also known as MRF4), as well as members of the FoxO subfamily. Differentiation and regeneration during skeletal muscle myogenesis contribute to the physiological function of muscles. Super enhancers (SEs) and enhancer RNAs (eRNAs) are involved in the regulation of development and diseases. Few studies have identified the roles of SEs and eRNAs in muscle development and pathophysiology. To develop approaches to enhance skeletal muscle mass and function, a more comprehensive understanding of the key processes underlying muscular diseases is needed. In this review, we summarize the roles of SEs and eRNAs in muscle development and disease through affecting of DNA methylation, FoxO subfamily, RAS-MEK signaling, chromatin modifications and accessibility, MyoD and cis regulating target genes. The summary could inform strategies to increase muscle mass and treat muscle-related diseases.
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Affiliation(s)
- Si Lei
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
| | - Cheng Li
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
| | - Yanling She
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
| | - Shanyao Zhou
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
| | - Huacai Shi
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
| | - Rui Chen
- Guangdong Second Provincial General Hospital, Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangzhou, China
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23
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Sahinyan K, Lazure F, Blackburn DM, Soleimani VD. Decline of regenerative potential of old muscle stem cells: contribution to muscle aging. FEBS J 2023; 290:1267-1289. [PMID: 35029021 DOI: 10.1111/febs.16352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/23/2021] [Accepted: 01/11/2022] [Indexed: 01/01/2023]
Abstract
Muscle stem cells (MuSCs) are required for life-long muscle regeneration. In general, aging has been linked to a decline in the numbers and the regenerative potential of MuSCs. Muscle regeneration depends on the proper functioning of MuSCs, which is itself dependent on intricate interactions with its niche components. Aging is associated with both cell-intrinsic and niche-mediated changes, which can be the result of transcriptional, posttranscriptional, or posttranslational alterations in MuSCs or in the components of their niche. The interplay between cell intrinsic alterations in MuSCs and changes in the stem cell niche environment during aging and its impact on the number and the function of MuSCs is an important emerging area of research. In this review, we discuss whether the decline in the regenerative potential of MuSCs with age is the cause or the consequence of aging skeletal muscle. Understanding the effect of aging on MuSCs and the individual components of their niche is critical to develop effective therapeutic approaches to diminish or reverse the age-related defects in muscle regeneration.
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Affiliation(s)
- Korin Sahinyan
- Department of Human Genetics, McGill University, Montréal, QC, Canada.,Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada
| | - Felicia Lazure
- Department of Human Genetics, McGill University, Montréal, QC, Canada.,Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada
| | - Darren M Blackburn
- Department of Human Genetics, McGill University, Montréal, QC, Canada.,Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada
| | - Vahab D Soleimani
- Department of Human Genetics, McGill University, Montréal, QC, Canada.,Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada
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24
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Gao G, Hausmann S, Flores NM, Benitez AM, Shen J, Yang X, Person MD, Gayatri S, Cheng D, Lu Y, Liu B, Mazur PK, Bedford MT. The NFIB/CARM1 partnership is a driver in preclinical models of small cell lung cancer. Nat Commun 2023; 14:363. [PMID: 36690626 PMCID: PMC9870865 DOI: 10.1038/s41467-023-35864-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 01/04/2023] [Indexed: 01/24/2023] Open
Abstract
The coactivator associated arginine methyltransferase (CARM1) promotes transcription, as its name implies. It does so by modifying histones and chromatin bound proteins. We identified nuclear factor I B (NFIB) as a CARM1 substrate and show that this transcription factor utilizes CARM1 as a coactivator. Biochemical studies reveal that tripartite motif 29 (TRIM29) is an effector molecule for methylated NFIB. Importantly, NFIB harbors both oncogenic and metastatic activities, and is often overexpressed in small cell lung cancer (SCLC). Here, we explore the possibility that CARM1 methylation of NFIB is important for its transforming activity. Using a SCLC mouse model, we show that both CARM1 and the CARM1 methylation site on NFIB are critical for the rapid onset of SCLC. Furthermore, CARM1 and methylated NFIB are responsible for maintaining similar open chromatin states in tumors. Together, these findings suggest that CARM1 might be a therapeutic target for SCLC.
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Affiliation(s)
- Guozhen Gao
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Simone Hausmann
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Natasha M Flores
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Ana Morales Benitez
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jianjun Shen
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Xiaojie Yang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Maria D Person
- Center for Biomedical Research Support, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Sitaram Gayatri
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
- Evozyne Inc., Chicago, IL, 60614, USA
| | - Donghang Cheng
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yue Lu
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Bin Liu
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Pawel K Mazur
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| | - Mark T Bedford
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
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25
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Fu X, Zhuang CL, Hu P. Regulation of muscle stem cell fate. CELL REGENERATION (LONDON, ENGLAND) 2022; 11:40. [PMID: 36456659 PMCID: PMC9715903 DOI: 10.1186/s13619-022-00142-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 09/29/2022] [Indexed: 12/03/2022]
Abstract
Skeletal muscle plays a critical role in human health. Muscle stem cells (MuSCs) serve as the major cell type contributing to muscle regeneration by directly differentiating to mature muscle cells. MuSCs usually remain quiescent with occasionally self-renewal and are activated to enter cell cycle for proliferation followed by differentiation upon muscle injury or under pathological conditions. The quiescence maintenance, activation, proliferation, and differentiation of MuSCs are tightly regulated. The MuSC cell-intrinsic regulatory network and the microenvironments work coordinately to orchestrate the fate transition of MuSCs. The heterogeneity of MuSCs further complicates the regulation of MuSCs. This review briefly summarizes the current progress on the heterogeneity of MuSCs and the microenvironments, epigenetic, and transcription regulations of MuSCs.
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Affiliation(s)
- Xin Fu
- grid.412987.10000 0004 0630 1330Spine Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092 China
| | - Cheng-le Zhuang
- grid.412538.90000 0004 0527 0050Colorectal Cancer Center/Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji University, Shanghai, 200072 China
| | - Ping Hu
- grid.412987.10000 0004 0630 1330Spine Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092 China ,grid.412538.90000 0004 0527 0050Colorectal Cancer Center/Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji University, Shanghai, 200072 China ,Guangzhou Laboratory, Guanghzou International Bio Lsland, No. 9 XingDaoHuan Road, Guangzhou, 510005 China ,grid.9227.e0000000119573309Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101 China
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26
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Chen Z, Lan H, Liao Z, Huang J, Jian X, Hu J, Liao H. Regulatory T cells-centered regulatory networks of skeletal muscle inflammation and regeneration. Cell Biosci 2022; 12:112. [PMID: 35869487 PMCID: PMC9308315 DOI: 10.1186/s13578-022-00847-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 07/08/2022] [Indexed: 11/10/2022] Open
Abstract
As the understanding of skeletal muscle inflammation is increasingly clarified, the role of Treg cells in the treatment of skeletal muscle diseases has attracted more attention in recent years. A consensus has been reached that the regulation of Treg cells is the key to completing the switch of inflammation and repair of skeletal muscle, whose presence directly determine the repairing quality of the injured skeletal muscle. However, the functioning process of Treg cells remains unreported, thereby making it necessary to summarize the current role of Treg cells in skeletal muscle. In this review, the characteristics, origins, and cellular kinetics of these Treg cells are firstly described; Then, the relationship between Treg cells and muscle satellite cells (MuSCs), conventional T cells (Tconv) is discussed (the former is involved in the entire repair and regeneration process, while the latter matters considerably in causing most skeletal muscle autoimmune diseases); Next, focus is placed on the control of Treg cells on the phenotypic switch of macrophages, which is the key to the switch of inflammation; Finally, factors regulating the functional process of Treg cells are analyzed, and a regulatory network centered on Treg cells is summarized. The present study summarizes the cell-mediated interactions in skeletal muscle repair over the past decade, and elucidates the central role of regulatory T cells in this process, so that other researchers can more quickly and comprehensively understand the development and direction of this very field. It is believed that the hereby proposed viewpoints and problems can provide fresh visions for the latecomers.
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27
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Saber J, Rudnicki MA. Carm1 and the Epigenetic Control of Stem Cell Function. Stem Cells Transl Med 2022; 11:1143-1150. [PMID: 36103286 PMCID: PMC9672848 DOI: 10.1093/stcltm/szac068] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/13/2022] [Indexed: 06/06/2024] Open
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1) is a methyltransferase whose function has been highly studied in the context of nuclear receptor signaling. However, CARM1 is known to epigenetically regulate expression of several myogenic genes involved in differentiation such as Myog and MEF2C. CARM1 also acts to regulate myogenesis through its influence on various cellular processes from embryonic to adult myogenesis. First, CARM1 has a crucial role in establishing polarity-regulated gene expression during an asymmetric satellite cell division by methylating PAX7, leading to the expression of Myf5. Second, satellite cells express the CARM1-FL and CARM1-ΔE15 isoforms. The former has been shown to promote pre-mRNA splicing through its interaction with CA150 and U1C, leading to their methylation and increased activity, while the latter displays a reduction in both metrics, thus, modulating alternative pre-mRNA splice forms in muscle cells. Third, CARM1 is a regulator of autophagy through its positive reinforcement of AMPK activity and gene expression. Autophagy already has known implications in ageing and disease, and CARM1 could follow suite. Thus, CARM1 is a central regulator of several important processes impacting muscle stem cell function and myogenesis.
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Affiliation(s)
- John Saber
- Sprott Centre for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Michael A Rudnicki
- Sprott Centre for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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28
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Zhao Z, Rendleman EJ, Szczepanski AP, Morgan MA, Wang L, Shilatifard A. CARM1-mediated methylation of ASXL2 impairs tumor-suppressive function of MLL3/COMPASS. SCIENCE ADVANCES 2022; 8:eadd3339. [PMID: 36197977 PMCID: PMC9534506 DOI: 10.1126/sciadv.add3339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/17/2022] [Indexed: 05/29/2023]
Abstract
An imbalance in the activities of the Polycomb and Trithorax complexes underlies numerous human pathologies, including cancer. The BRCA1 associated protein-1 (BAP1) deubiquitinase negatively regulates Polycomb activity and recruits the Trithorax histone H3K4 methyltransferase, mixed-lineage leukemia protein 3 (MLL3) within Complex Proteins Associated with Set1 (COMPASS), to the enhancers of tumor suppressor genes. We previously demonstrated that the BAP1-MLL3 pathway is mutated in several cancers, yet how BAP1 recruits MLL3 to its target loci remains an important unanswered question. We demonstrate that the ASXL2 subunit of the BAP1 complex mediates a direct interaction with MLL3/COMPASS. ASXL2 loss results in decreased MLL3 occupancy at enhancers and reduced BAP1-MLL3 target gene expression. Interaction between ASXL2 and MLL3 is negatively regulated by protein arginine methyltransferase 4 (PRMT4/CARM1), which methylates ASXL2 at R639/R641. ASXL2 methylation blocks binding to MLL3 and impairs the expression of MLL3/COMPASS-dependent genes. This previously unidentified transcriptional repressive function of CARM1 provides insight into the BAP1/MLL3-COMPASS axis and reveals a potential cancer therapeutic target.
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Affiliation(s)
- Zibo Zhao
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, 303 East Superior Street, Chicago, IL 60611, USA
| | - Emily Jane Rendleman
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, 303 East Superior Street, Chicago, IL 60611, USA
| | - Aileen Patricia Szczepanski
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, 303 East Superior Street, Chicago, IL 60611, USA
| | - Marc Alard Morgan
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, 303 East Superior Street, Chicago, IL 60611, USA
| | - Lu Wang
- Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, 303 East Superior Street, Chicago, IL 60611, USA
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29
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Vicente-García C, Hernández-Camacho JD, Carvajal JJ. Regulation of myogenic gene expression. Exp Cell Res 2022; 419:113299. [DOI: 10.1016/j.yexcr.2022.113299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 12/22/2022]
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30
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Jamet S, Ha S, Ho TH, Houghtaling S, Timms A, Yu K, Paquette A, Maga AM, Greene NDE, Beier DR. The arginine methyltransferase Carm1 is necessary for heart development. G3 GENES|GENOMES|GENETICS 2022; 12:6613934. [PMID: 35736367 PMCID: PMC9339313 DOI: 10.1093/g3journal/jkac155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/27/2022] [Indexed: 11/28/2022]
Abstract
To discover genes implicated in human congenital disorders, we performed ENU mutagenesis in the mouse and screened for mutations affecting embryonic development. In this work, we report defects of heart development in mice homozygous for a mutation of coactivator-associated arginine methyltransferase 1 (Carm1). While Carm1 has been extensively studied, it has never been previously associated with a role in heart development. Phenotype analysis combining histology and microcomputed tomography imaging shows a range of cardiac defects. Most notably, many affected midgestation embryos appear to have cardiac rupture and hemorrhaging in the thorax. Mice that survive to late gestation show a variety of cardiac defects, including ventricular septal defects, double outlet right ventricle, and persistent truncus arteriosus. Transcriptome analyses of the mutant embryos by mRNA-seq reveal the perturbation of several genes involved in cardiac morphogenesis and muscle development and function. In addition, we observe the mislocalization of cardiac neural crest cells at E12.5 in the outflow tract. The cardiac phenotype of Carm1 mutant embryos is similar to that of Pax3 null mutants, and PAX3 is a putative target of CARM1. However, our analysis does not support the hypothesis that developmental defects in Carm1 mutant embryos are primarily due to a functional defect of PAX3.
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Affiliation(s)
- Sophie Jamet
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
| | - Seungshin Ha
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
| | - Tzu-Hua Ho
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
| | - Scott Houghtaling
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
| | - Andrew Timms
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
| | - Kai Yu
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
- Department of Pediatrics, University of Washington School of Medicine , Seattle, WA 98195, USA
| | - Alison Paquette
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
- Department of Pediatrics, University of Washington School of Medicine , Seattle, WA 98195, USA
| | - Ali Murat Maga
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
- Department of Pediatrics, University of Washington School of Medicine , Seattle, WA 98195, USA
| | - Nicholas D E Greene
- Developmental Biology & Cancer Department, UCL Great Ormond Street Institute of Child Health , London WC1N 1EH, UK
| | - David R Beier
- Center for Developmental Biology and Regenerative Medicine, Seattle Children’s Research Institute , Seattle, WA 98101, USA
- Department of Pediatrics, University of Washington School of Medicine , Seattle, WA 98195, USA
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31
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vanLieshout TL, Stouth DW, Hartel NG, Vasam G, Ng SY, Webb EK, Rebalka IA, Mikhail AI, Graham NA, Menzies KJ, Hawke TJ, Ljubicic V. The CARM1 transcriptome and arginine methylproteome mediate skeletal muscle integrative biology. Mol Metab 2022; 64:101555. [PMID: 35872306 PMCID: PMC9379683 DOI: 10.1016/j.molmet.2022.101555] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Coactivator-associated arginine methyltransferase 1 (CARM1) catalyzes the methylation of arginine residues on target proteins to regulate critical processes in health and disease. A mechanistic understanding of the role(s) of CARM1 in skeletal muscle biology is only gradually emerging. The purpose of this study was to elucidate the function of CARM1 in regulating the maintenance and plasticity of skeletal muscle. METHODS We used transcriptomic, methylproteomic, molecular, functional, and integrative physiological approaches to determine the specific impact of CARM1 in muscle homeostasis. RESULTS Our data defines the occurrence of arginine methylation in skeletal muscle and demonstrates that this mark occurs on par with phosphorylation and ubiquitination. CARM1 skeletal muscle-specific knockout (mKO) mice displayed altered transcriptomic and arginine methylproteomic signatures with molecular and functional outcomes confirming remodeled skeletal muscle contractile and neuromuscular junction characteristics, which presaged decreased exercise tolerance. Moreover, CARM1 regulates AMPK-PGC-1α signalling during acute conditions of activity-induced muscle plasticity. CONCLUSIONS This study uncovers the broad impact of CARM1 in the maintenance and remodelling of skeletal muscle biology.
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Affiliation(s)
| | - Derek W Stouth
- Department of Kinesiology, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Nicolas G Hartel
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
| | - Goutham Vasam
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Sean Y Ng
- Department of Kinesiology, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Erin K Webb
- Department of Kinesiology, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Irena A Rebalka
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Andrew I Mikhail
- Department of Kinesiology, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Nicholas A Graham
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
| | - Keir J Menzies
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, K1H 8M5, Canada; Ottawa Institute of Systems Biology and the Centre for Neuromuscular Disease, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Rd, K1H 8M5, Ottawa, Canada
| | - Thomas J Hawke
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Vladimir Ljubicic
- Department of Kinesiology, McMaster University, Hamilton, ON, L8S 4L8, Canada.
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32
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Poreba E, Lesniewicz K, Durzynska J. Histone-lysine N-methyltransferase 2 (KMT2) complexes - a new perspective. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 790:108443. [PMID: 36154872 DOI: 10.1016/j.mrrev.2022.108443] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/25/2022] [Accepted: 09/19/2022] [Indexed: 01/01/2023]
Abstract
Histone H3 Lys4 (H3K4) methylation is catalyzed by the Histone-Lysine N-Methyltransferase 2 (KMT2) protein family, and its members are required for gene expression control. In vertebrates, the KMT2s function in large multisubunit complexes known as COMPASS or COMPASS-like complexes (COMplex of Proteins ASsociated with Set1). The activity of these complexes is critical for proper development, and mutation-induced defects in their functioning have frequently been found in human cancers. Moreover, inherited or de novo mutations in KMT2 genes are among the etiological factors in neurodevelopmental disorders such as Kabuki and Kleefstra syndromes. The canonical role of KMT2s is to catalyze H3K4 methylation, which results in a permissive chromatin environment that drives gene expression. However, current findings described in this review demonstrate that these enzymes can regulate processes that are not dependent on methylation: noncatalytic functions of KMT2s include DNA damage response, cell division, and metabolic activities. Moreover, these enzymes may also methylate non-histone substrates and play a methylation-dependent function in the DNA damage response. In this review, we present an overview of the new, noncanonical activities of KMT2 complexes in a variety of cellular processes. These discoveries may have crucial implications for understanding the functions of these methyltransferases in developmental processes, disease, and epigenome-targeting therapeutic strategies in the future.
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Affiliation(s)
- Elzbieta Poreba
- Department of Genetics, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Krzysztof Lesniewicz
- Department of Molecular and Cellular Biology, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Julia Durzynska
- Department of Genetics, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
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33
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Kim I, Ghosh A, Bundschuh N, Hinte L, Petrosyan E, von Meyenn F, Bar-Nur O. Integrative molecular roadmap for direct conversion of fibroblasts into myocytes and myogenic progenitor cells. SCIENCE ADVANCES 2022; 8:eabj4928. [PMID: 35385316 PMCID: PMC8986113 DOI: 10.1126/sciadv.abj4928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Transient MyoD overexpression in concert with small molecule treatment reprograms mouse fibroblasts into induced myogenic progenitor cells (iMPCs). However, the molecular landscape and mechanisms orchestrating this cellular conversion remain unknown. Here, we undertook an integrative multiomics approach to delineate the process of iMPC reprogramming in comparison to myogenic transdifferentiation mediated solely by MyoD. Using transcriptomics, proteomics, and genome-wide chromatin accessibility assays, we unravel distinct molecular trajectories that govern the two processes. Notably, only iMPC reprogramming is characterized by gradual up-regulation of muscle stem cell markers, unique signaling pathways, and chromatin remodelers in conjunction with exclusive chromatin opening in core myogenic promoters. In addition, we determine that the Notch pathway is indispensable for iMPC formation and self-renewal and further use the Notch ligand Dll1 to homogeneously propagate iMPCs. Collectively, this study charts divergent molecular blueprints for myogenic transdifferentiation or reprogramming and underpins the heightened capacity of iMPCs for capturing myogenesis ex vivo.
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Affiliation(s)
- Inseon Kim
- Laboratory of Regenerative and Movement Biology, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
| | - Adhideb Ghosh
- Laboratory of Regenerative and Movement Biology, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Switzerland
| | - Nicola Bundschuh
- Laboratory of Regenerative and Movement Biology, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
| | - Laura Hinte
- Laboratory of Nutrition and Metabolic Epigenetics, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
| | - Eduard Petrosyan
- Laboratory of Regenerative and Movement Biology, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
| | - Ferdinand von Meyenn
- Laboratory of Nutrition and Metabolic Epigenetics, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
| | - Ori Bar-Nur
- Laboratory of Regenerative and Movement Biology, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach, Switzerland
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34
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Ishino Y, Shimizu S, Tohyama M, Miyata S. Coactivator‐associated arginine methyltransferase 1 controls oligodendrocyte differentiation in the corpus callosum during early brain development. Dev Neurobiol 2022; 82:245-260. [DOI: 10.1002/dneu.22871] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 01/07/2022] [Accepted: 01/27/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Yugo Ishino
- Division of Molecular Brain Science Research Institute of Traditional Asian Medicine Kindai University Osaka‐Sayama Osaka 589–8511 Japan
| | - Shoko Shimizu
- Division of Molecular Brain Science Research Institute of Traditional Asian Medicine Kindai University Osaka‐Sayama Osaka 589–8511 Japan
| | - Masaya Tohyama
- Division of Molecular Brain Science Research Institute of Traditional Asian Medicine Kindai University Osaka‐Sayama Osaka 589–8511 Japan
| | - Shingo Miyata
- Division of Molecular Brain Science Research Institute of Traditional Asian Medicine Kindai University Osaka‐Sayama Osaka 589–8511 Japan
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35
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Agarwal M, Bharadwaj A, Mathew SJ. TLE4 regulates muscle stem cell quiescence and skeletal muscle differentiation. J Cell Sci 2022; 135:274455. [PMID: 35099008 DOI: 10.1242/jcs.256008] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/18/2022] [Indexed: 10/19/2022] Open
Abstract
Muscle stem (satellite) cells express Pax7, a key transcription factor essential for satellite cell maintenance and adult muscle regeneration. We identify the corepressor Transducin-Like Enhancer of Split-4 (TLE4) as a Pax7 interaction partner expressed in quiescent satellite cells under homeostasis. A subset of satellite cells transiently downregulate TLE4 during early time points following injury. We identify these to be activated satellite cells where TLE4 downregulation is required for Myf5 activation and myogenic commitment. Our results indicate that TLE4 represses Pax7-mediated Myf5 transcriptional activation by occupying the -111 kb Myf5 enhancer to maintain quiescence. Loss of TLE4 function causes Myf5 upregulation, increase in satellite cell numbers, and altered differentiation dynamics during regeneration. Thus, we have uncovered a novel mechanism to maintain satellite cell quiescence and regulating muscle differentiation mediated by the corepressor TLE4.
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Affiliation(s)
- Megha Agarwal
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India.,Manipal University, Manipal, Karnataka, 576104, India
| | - Anushree Bharadwaj
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India
| | - Sam J Mathew
- Developmental Genetics Laboratory, Regional Centre for Biotechnology (RCB), NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, 121001, Haryana, India.,Manipal University, Manipal, Karnataka, 576104, India
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36
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Protein Arginine Methyltransferases in Neuromuscular Function and Diseases. Cells 2022; 11:cells11030364. [PMID: 35159176 PMCID: PMC8834056 DOI: 10.3390/cells11030364] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 02/07/2023] Open
Abstract
Neuromuscular diseases (NMDs) are characterized by progressive loss of muscle mass and strength that leads to impaired body movement. It not only severely diminishes the quality of life of the patients, but also subjects them to increased risk of secondary medical conditions such as fall-induced injuries and various chronic diseases. However, no effective treatment is currently available to prevent or reverse the disease progression. Protein arginine methyltransferases (PRMTs) are emerging as a potential therapeutic target for diverse diseases, such as cancer and cardiovascular diseases. Their expression levels are altered in the patients and molecular mechanisms underlying the association between PRMTs and the diseases are being investigated. PRMTs have been shown to regulate development, homeostasis, and regeneration of both muscle and neurons, and their association to NMDs are emerging as well. Through inhibition of PRMT activities, a few studies have reported suppression of cytotoxic phenotypes observed in NMDs. Here, we review our current understanding of PRMTs’ involvement in the pathophysiology of NMDs and potential therapeutic strategies targeting PRMTs to address the unmet medical need.
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37
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Malbeteau L, Pham HT, Eve L, Stallcup MR, Poulard C, Le Romancer M. How Protein Methylation Regulates Steroid Receptor Function. Endocr Rev 2022; 43:160-197. [PMID: 33955470 PMCID: PMC8755998 DOI: 10.1210/endrev/bnab014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Indexed: 02/06/2023]
Abstract
Steroid receptors (SRs) are members of the nuclear hormonal receptor family, many of which are transcription factors regulated by ligand binding. SRs regulate various human physiological functions essential for maintenance of vital biological pathways, including development, reproduction, and metabolic homeostasis. In addition, aberrant expression of SRs or dysregulation of their signaling has been observed in a wide variety of pathologies. SR activity is tightly and finely controlled by post-translational modifications (PTMs) targeting the receptors and/or their coregulators. Whereas major attention has been focused on phosphorylation, growing evidence shows that methylation is also an important regulator of SRs. Interestingly, the protein methyltransferases depositing methyl marks are involved in many functions, from development to adult life. They have also been associated with pathologies such as inflammation, as well as cardiovascular and neuronal disorders, and cancer. This article provides an overview of SR methylation/demethylation events, along with their functional effects and biological consequences. An in-depth understanding of the landscape of these methylation events could provide new information on SR regulation in physiology, as well as promising perspectives for the development of new therapeutic strategies, illustrated by the specific inhibitors of protein methyltransferases that are currently available.
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Affiliation(s)
- Lucie Malbeteau
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Ha Thuy Pham
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Louisane Eve
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Michael R Stallcup
- Department of Biochemistry and Molecular Medicine, Norris Comprehensive Center, University of Southern California, Los Angeles, CA 90089, USA
| | - Coralie Poulard
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
| | - Muriel Le Romancer
- Université de Lyon, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
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38
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Bianconi V, Mozzetta C. Epigenetic control of muscle stem cells: time for a new dimension. Trends Genet 2022; 38:501-513. [DOI: 10.1016/j.tig.2022.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/20/2021] [Accepted: 01/04/2022] [Indexed: 11/16/2022]
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Wang F, Zhang J, Tang H, Pang Y, Ke X, Peng W, Chen S, Abbas MN, Dong Z, Cui Z, Cui H. Nup54-induced CARM1 nuclear importation promotes gastric cancer cell proliferation and tumorigenesis through transcriptional activation and methylation of Notch2. Oncogene 2022; 41:246-259. [PMID: 34725461 DOI: 10.1038/s41388-021-02078-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/27/2021] [Accepted: 10/11/2021] [Indexed: 11/09/2022]
Abstract
Gastric cancer (GC) has the fifth highest incidence globally, but its molecular mechanisms are not well understood. Here, we report that coactivator-associated arginine methyltransferase 1 (CARM1) is specifically highly expressed in gastric cancer and that its overexpression correlates with poor prognosis in patients with gastric cancer. Nucleoporin 54 (Nup54) was identified as a CARM1-interacting protein that promoted CARM1 nuclear importation. In the nucleus, CARM1 cooperates with transcriptional factor EB (TFEB) to activate Notch2 transcription by inducing H3R17me2 of the Notch2 promoter but not H3R26me2. Additionally, the Notch2 intracellular domain (N2ICD) was identified as a CARM1 substrate. Methylation of N2ICD at R1786, R1838, and R2047 by CARM1 enhanced the binding between N2ICD and mastermind-like protein 1 (MAML1) and increased gastric cancer cell proliferation in vitro and tumor formation in vivo. Our findings reveal a molecular mechanism linking CARM1-mediated transcriptional activation of the Notch2 signaling pathway to Notch2 methylation in gastric cancer progression.
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Affiliation(s)
- Feng Wang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Jiayi Zhang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Houyi Tang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Yi Pang
- Chongqing Engineering Research Center of Antitumor Natural Drugs, Chongqing Three Gorges Medical College, Chongqing, 404120, China
| | - Xiaoxue Ke
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Wen Peng
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Shitong Chen
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China.,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China
| | - Zhaobo Cui
- Department of Intensive Care Unit, Harrison International Peace Hospital, Hengshui, 053000, Hebei, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Beibei, Chongqing, 400716, China. .,Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing, 400716, China.
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40
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Mbadhi MN, Tang JM, Zhang JX. Histone Lysine Methylation and Long Non-Coding RNA: The New Target Players in Skeletal Muscle Cell Regeneration. Front Cell Dev Biol 2021; 9:759237. [PMID: 34926450 PMCID: PMC8678087 DOI: 10.3389/fcell.2021.759237] [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: 08/16/2021] [Accepted: 11/11/2021] [Indexed: 11/13/2022] Open
Abstract
Satellite stem cell availability and high regenerative capacity have made them an ideal therapeutic approach for muscular dystrophies and neuromuscular diseases. Adult satellite stem cells remain in a quiescent state and become activated upon muscular injury. A series of molecular mechanisms succeed under the control of epigenetic regulation and various myogenic regulatory transcription factors myogenic regulatory factors, leading to their differentiation into skeletal muscles. The regulation of MRFs via various epigenetic factors, including DNA methylation, histone modification, and non-coding RNA, determine the fate of myogenesis. Furthermore, the development of histone deacetylation inhibitors (HDACi) has shown promising benefits in their use in clinical trials of muscular diseases. However, the complete application of using satellite stem cells in the clinic is still not achieved. While therapeutic advancements in the use of HDACi in clinical trials have emerged, histone methylation modulations and the long non-coding RNA (lncRNA) are still under study. A comprehensive understanding of these other significant epigenetic modulations is still incomplete. This review aims to discuss some of the current studies on these two significant epigenetic modulations, histone methylation and lncRNA, as potential epigenetic targets in skeletal muscle regeneration. Understanding the mechanisms that initiate myoblast differentiation from its proliferative state to generate new muscle fibres will provide valuable information to advance the field of regenerative medicine and stem cell transplant.
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Affiliation(s)
- Magdaleena Naemi Mbadhi
- Hubei Key Laboratory of Embryonic Stem Cell Research, Department of Physiology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Jun-Ming Tang
- Hubei Key Laboratory of Embryonic Stem Cell Research, Department of Physiology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Jing-Xuan Zhang
- Hubei Key Laboratory of Embryonic Stem Cell Research, Department of Physiology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
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41
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Ravel-Chapuis A, Haghandish A, Daneshvar N, Jasmin BJ, Côté J. A novel CARM1-HuR axis involved in muscle differentiation and plasticity misregulated in spinal muscular atrophy. Hum Mol Genet 2021; 31:1453-1470. [PMID: 34791230 DOI: 10.1093/hmg/ddab333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/19/2021] [Accepted: 10/19/2021] [Indexed: 11/14/2022] Open
Abstract
Spinal muscular atrophy (SMA) is characterized by the loss of alpha motor neurons in the spinal cord and a progressive muscle weakness and atrophy. SMA is caused by loss-of-function mutations and/or deletions in the survival of motor neuron (SMN) gene. The role of SMN in motor neurons has been extensively studied, but its function and the consequences of its loss in muscle has also emerged as a key aspect of SMA pathology. In this study, we explore the molecular mechanisms involved in muscle defects in SMA. First, we show in C2C12 myoblasts, that arginine methylation by CARM1 controls myogenic differentiation. More specifically, the methylation of HuR on K217 regulates HuR levels and subcellular localization during myogenic differentiation, and the formation of myotubes. Furthermore, we demonstrate that SMN and HuR interact in C2C12 myoblasts. Interestingly, the SMA-causing E134K point mutation within the SMN Tudor domain, and CARM1 depletion, modulate the SMN-HuR interaction. In addition, using the Smn2B/- mouse model, we report that CARM1 levels are markedly increased in SMA muscles and that HuR fails to properly respond to muscle denervation, thereby affecting the regulation of its mRNA targets. Altogether, our results show a novel CARM1-HuR axis in the regulation of muscle differentiation and plasticity as well as in the aberrant regulation of this axis caused by the absence of SMN in SMA muscle. With the recent developments of therapeutics targeting motor neurons, this study further indicates the need for more global therapeutic approaches for SMA.
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Affiliation(s)
- Aymeric Ravel-Chapuis
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Eric Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Amir Haghandish
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Eric Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Nasibeh Daneshvar
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Eric Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Bernard J Jasmin
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Eric Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Jocelyn Côté
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Eric Poulin Centre for Neuromuscular Disease, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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42
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Esteves de Lima J, Relaix F. Master regulators of skeletal muscle lineage development and pluripotent stem cells differentiation. CELL REGENERATION 2021; 10:31. [PMID: 34595600 PMCID: PMC8484369 DOI: 10.1186/s13619-021-00093-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/24/2021] [Indexed: 12/16/2022]
Abstract
In vertebrates, the skeletal muscles of the body and their associated stem cells originate from muscle progenitor cells, during development. The specification of the muscles of the trunk, head and limbs, relies on the activity of distinct genetic hierarchies. The major regulators of trunk and limb muscle specification are the paired-homeobox transcription factors PAX3 and PAX7. Distinct gene regulatory networks drive the formation of the different muscles of the head. Despite the redeployment of diverse upstream regulators of muscle progenitor differentiation, the commitment towards the myogenic fate requires the expression of the early myogenic regulatory factors MYF5, MRF4, MYOD and the late differentiation marker MYOG. The expression of these genes is activated by muscle progenitors throughout development, in several waves of myogenic differentiation, constituting the embryonic, fetal and postnatal phases of muscle growth. In order to achieve myogenic cell commitment while maintaining an undifferentiated pool of muscle progenitors, several signaling pathways regulate the switch between proliferation and differentiation of myoblasts. The identification of the gene regulatory networks operating during myogenesis is crucial for the development of in vitro protocols to differentiate pluripotent stem cells into myoblasts required for regenerative medicine.
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Affiliation(s)
| | - Frédéric Relaix
- Univ Paris Est Creteil, INSERM, EnvA, EFS, AP-HP, IMRB, 94010, Creteil, France.
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43
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So HK, Kim S, Kang JS, Lee SJ. Role of Protein Arginine Methyltransferases and Inflammation in Muscle Pathophysiology. Front Physiol 2021; 12:712389. [PMID: 34489731 PMCID: PMC8416770 DOI: 10.3389/fphys.2021.712389] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/27/2021] [Indexed: 12/17/2022] Open
Abstract
Arginine methylation mediated by protein arginine methyltransferases (PRMTs) is a post-translational modification of both histone and non-histone substrates related to diverse biological processes. PRMTs appear to be critical regulators in skeletal muscle physiology, including regeneration, metabolic homeostasis, and plasticity. Chronic inflammation is commonly associated with the decline of skeletal muscle mass and strength related to aging or chronic diseases, defined as sarcopenia. In turn, declined skeletal muscle mass and strength can exacerbate chronic inflammation. Thus, understanding the molecular regulatory pathway underlying the crosstalk between skeletal muscle function and inflammation might be essential for the intervention of muscle pathophysiology. In this review, we will address the current knowledge on the role of PRMTs in skeletal muscle physiology and pathophysiology with a specific emphasis on its relationship with inflammation.
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Affiliation(s)
- Hyun-Kyung So
- Molecular Cell Biology, Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, South Korea.,Research Institute of Aging-Related Disease, AniMusCure Inc., Suwon, South Korea
| | - Sunghee Kim
- Molecular Cell Biology, Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Jong-Sun Kang
- Molecular Cell Biology, Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Sang-Jin Lee
- Research Institute of Aging-Related Disease, AniMusCure Inc., Suwon, South Korea
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44
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Klonou A, Chlamydas S, Piperi C. Structure, Activity and Function of the MLL2 (KMT2B) Protein Lysine Methyltransferase. Life (Basel) 2021; 11:823. [PMID: 34440566 PMCID: PMC8401916 DOI: 10.3390/life11080823] [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: 07/08/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 12/31/2022] Open
Abstract
The Mixed Lineage Leukemia 2 (MLL2) protein, also known as KMT2B, belongs to the family of mammalian histone H3 lysine 4 (H3K4) methyltransferases. It is a large protein of 2715 amino acids, widely expressed in adult human tissues and a paralog of the MLL1 protein. MLL2 contains a characteristic C-terminal SET domain responsible for methyltransferase activity and forms a protein complex with WRAD (WDR5, RbBP5, ASH2L and DPY30), host cell factors 1/2 (HCF 1/2) and Menin. The MLL2 complex is responsible for H3K4 trimethylation (H3K4me3) on specific gene promoters and nearby cis-regulatory sites, regulating bivalent developmental genes as well as stem cell and germinal cell differentiation gene sets. Moreover, MLL2 plays a critical role in development and germ line deletions of Mll2 have been associated with early growth retardation, neural tube defects and apoptosis that leads to embryonic death. It has also been involved in the control of voluntary movement and the pathogenesis of early stage childhood dystonia. Additionally, tumor-promoting functions of MLL2 have been detected in several cancer types, including colorectal, hepatocellular, follicular cancer and gliomas. In this review, we discuss the main structural and functional aspects of the MLL2 methyltransferase with particular emphasis on transcriptional mechanisms, gene regulation and association with diseases.
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Affiliation(s)
- Alexia Klonou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.K.); (S.C.)
| | - Sarantis Chlamydas
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.K.); (S.C.)
- Research and Development Department, Active Motif, Inc., Carlsbad, CA 92008, USA
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.K.); (S.C.)
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Acetylation of PAX7 controls muscle stem cell self-renewal and differentiation potential in mice. Nat Commun 2021; 12:3253. [PMID: 34059674 PMCID: PMC8167170 DOI: 10.1038/s41467-021-23577-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 05/06/2021] [Indexed: 11/15/2022] Open
Abstract
Muscle stem cell function has been suggested to be regulated by Acetyl-CoA and NAD+ availability, but the mechanisms remain unclear. Here we report the identification of two acetylation sites on PAX7 that positively regulate its transcriptional activity. Lack of PAX7 acetylation reduces DNA binding, specifically to the homeobox motif. The acetyltransferase MYST1 stimulated by Acetyl-CoA, and the deacetylase SIRT2 stimulated by NAD +, are identified as direct regulators of PAX7 acetylation and asymmetric division in muscle stem cells. Abolishing PAX7 acetylation in mice using CRISPR/Cas9 mutagenesis leads to an expansion of the satellite stem cell pool, reduced numbers of asymmetric stem cell divisions, and increased numbers of oxidative IIA myofibers. Gene expression analysis confirms that lack of PAX7 acetylation preferentially affects the expression of target genes regulated by homeodomain binding motifs. Therefore, PAX7 acetylation status regulates muscle stem cell function and differentiation potential to facilitate metabolic adaptation of muscle tissue. The acetyltransferase MYST1 stimulated by acetyl-CoA, and the deacetylase SIRT2 stimulated by NAD+, regulate PAX7 acetylation in muscle stem cells, which in turn, regulates stem cell self-renewal and regeneration following injury in mouse skeletal muscle.
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46
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The transcription factor code: a beacon for histone methyltransferase docking. Trends Cell Biol 2021; 31:792-800. [PMID: 34016504 DOI: 10.1016/j.tcb.2021.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/30/2021] [Accepted: 04/08/2021] [Indexed: 12/19/2022]
Abstract
Histone methylation is required for the establishment and maintenance of gene expression patterns that determine cellular identity, and its perturbation often leads to aberrant development and disease. Recruitment of histone methyltransferases (HMTs) to gene regulatory elements (GREs) of developmental genes is important for the correct activation and silencing of these genes, but the drivers of this recruitment are largely unknown. Here we propose that lineage-instructive transcription factors (Lin-TFs) act as general recruiters of HMT complexes to cell type-specific GREs through protein-protein interactions. We also postulate that the specificity of these interactions is dictated by Lin-TF post-translational modifications (PTMs), which act as a 'transcription factor code' that can determine the directionality of cell fate decisions during differentiation and development.
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Starosta A, Konieczny P. Therapeutic aspects of cell signaling and communication in Duchenne muscular dystrophy. Cell Mol Life Sci 2021; 78:4867-4891. [PMID: 33825942 PMCID: PMC8233280 DOI: 10.1007/s00018-021-03821-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/26/2021] [Accepted: 03/23/2021] [Indexed: 12/11/2022]
Abstract
Duchenne muscular dystrophy (DMD) is a devastating chromosome X-linked disease that manifests predominantly in progressive skeletal muscle wasting and dysfunctions in the heart and diaphragm. Approximately 1/5000 boys and 1/50,000,000 girls suffer from DMD, and to date, the disease is incurable and leads to premature death. This phenotypic severity is due to mutations in the DMD gene, which result in the absence of functional dystrophin protein. Initially, dystrophin was thought to be a force transducer; however, it is now considered an essential component of the dystrophin-associated protein complex (DAPC), viewed as a multicomponent mechanical scaffold and a signal transduction hub. Modulating signal pathway activation or gene expression through epigenetic modifications has emerged at the forefront of therapeutic approaches as either an adjunct or stand-alone strategy. In this review, we propose a broader perspective by considering DMD to be a disease that affects myofibers and muscle stem (satellite) cells, as well as a disorder in which abrogated communication between different cell types occurs. We believe that by taking this systemic view, we can achieve safe and holistic treatments that can restore correct signal transmission and gene expression in diseased DMD tissues.
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Affiliation(s)
- Alicja Starosta
- Faculty of Biology, Institute of Human Biology and Evolution, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland
| | - Patryk Konieczny
- Faculty of Biology, Institute of Human Biology and Evolution, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
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Montecino F, González N, Blanco N, Ramírez MJ, González-Martín A, Alvarez AR, Olguín H. c-Abl Kinase Is Required for Satellite Cell Function Through Pax7 Regulation. Front Cell Dev Biol 2021; 9:606403. [PMID: 33777928 PMCID: PMC7990767 DOI: 10.3389/fcell.2021.606403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 02/08/2021] [Indexed: 01/06/2023] Open
Abstract
Satellite cells (SCs) are tissue-specific stem cells responsible for adult skeletal muscle regeneration and maintenance. SCs function is critically dependent on two families of transcription factors: the paired box (Pax) involved in specification and maintenance and the Muscle Regulatory Factors (MRFs), which orchestrate myogenic commitment and differentiation. In turn, signaling events triggered by extrinsic and intrinsic stimuli control their function via post-translational modifications, including ubiquitination and phosphorylation. In this context, the Abelson non-receptor tyrosine kinase (c-Abl) mediates the activation of the p38 α/β MAPK pathway, promoting myogenesis. c-Abl also regulates the activity of the transcription factor MyoD during DNA-damage stress response, pausing differentiation. However, it is not clear if c-Abl modulates other key transcription factors controlling SC function. This work aims to determine the role of c-Abl in SCs myogenic capacity via loss of function approaches in vitro and in vivo. Here we show that c-Abl inhibition or deletion results in a down-regulation of Pax7 mRNA and protein levels, accompanied by decreased Pax7 transcriptional activity, without a significant effect on MRF expression. Additionally, we provide data indicating that Pax7 is directly phosphorylated by c-Abl. Finally, SC-specific c-Abl ablation impairs muscle regeneration upon acute injury. Our results indicate that c-Abl regulates myogenic progression in activated SCs by controlling Pax7 function and expression.
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Affiliation(s)
- Fabián Montecino
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia González
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natasha Blanco
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Manuel J Ramírez
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Adrián González-Martín
- CARE-UC, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandra R Alvarez
- CARE-UC, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Hugo Olguín
- Laboratory of Tissue Repair and Adult Stem Cells, Department of Molecular and Cell Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
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Suresh S, Huard S, Dubois T. CARM1/PRMT4: Making Its Mark beyond Its Function as a Transcriptional Coactivator. Trends Cell Biol 2021; 31:402-417. [PMID: 33485722 DOI: 10.1016/j.tcb.2020.12.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022]
Abstract
Coactivator-associated arginine methyltransferase 1 (CARM1), identified 20 years ago as a coregulator of transcription, is an enzyme that catalyzes arginine methylation of proteins. Beyond its well-established involvement in the regulation of transcription, the physiological functions of CARM1 are still poorly understood. However, recent studies have revealed novel roles of CARM1 in autophagy, metabolism, paraspeckles, and early development. In addition, CARM1 is emerging as an attractive therapeutic target and a drug response biomarker for certain types of cancer. Here, we provide a comprehensive overview of the structure of CARM1 and its post-translational modifications, its various functions, apart from transcriptional coactivation, and its involvement in cancer.
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Affiliation(s)
- Samyuktha Suresh
- Institut Curie - PSL Research University, Translational Research Department, Breast Cancer Biology Group, 75005 Paris, France
| | - Solène Huard
- Institut Curie - PSL Research University, Translational Research Department, Breast Cancer Biology Group, 75005 Paris, France
| | - Thierry Dubois
- Institut Curie - PSL Research University, Translational Research Department, Breast Cancer Biology Group, 75005 Paris, France.
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50
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Rugowska A, Starosta A, Konieczny P. Epigenetic modifications in muscle regeneration and progression of Duchenne muscular dystrophy. Clin Epigenetics 2021; 13:13. [PMID: 33468200 PMCID: PMC7814631 DOI: 10.1186/s13148-021-01001-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/14/2020] [Indexed: 02/08/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is a multisystemic disorder that affects 1:5000 boys. The severity of the phenotype varies dependent on the mutation site in the DMD gene and the resultant dystrophin expression profile. In skeletal muscle, dystrophin loss is associated with the disintegration of myofibers and their ineffective regeneration due to defective expansion and differentiation of the muscle stem cell pool. Some of these phenotypic alterations stem from the dystrophin absence-mediated serine-threonine protein kinase 2 (MARK2) misplacement/downregulation in activated muscle stem (satellite) cells and neuronal nitric oxide synthase loss in cells committed to myogenesis. Here, we trace changes in DNA methylation, histone modifications, and expression of regulatory noncoding RNAs during muscle regeneration, from the stage of satellite cells to myofibers. Furthermore, we describe the abrogation of these epigenetic regulatory processes due to changes in signal transduction in DMD and point to therapeutic treatments increasing the regenerative potential of diseased muscles based on this acquired knowledge.
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Affiliation(s)
- Anna Rugowska
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland
| | - Alicja Starosta
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland
| | - Patryk Konieczny
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznan, Poland.
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