1
|
Liang W, Xu F, Li L, Peng C, Sun H, Qiu J, Sun J. Epigenetic control of skeletal muscle atrophy. Cell Mol Biol Lett 2024; 29:99. [PMID: 38978023 PMCID: PMC11229277 DOI: 10.1186/s11658-024-00618-1] [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: 03/25/2024] [Accepted: 06/26/2024] [Indexed: 07/10/2024] Open
Abstract
Skeletal muscular atrophy is a complex disease involving a large number of gene expression regulatory networks and various biological processes. Despite extensive research on this topic, its underlying mechanisms remain elusive, and effective therapeutic approaches are yet to be established. Recent studies have shown that epigenetics play an important role in regulating skeletal muscle atrophy, influencing the expression of numerous genes associated with this condition through the addition or removal of certain chemical modifications at the molecular level. This review article comprehensively summarizes the different types of modifications to DNA, histones, RNA, and their known regulators. We also discuss how epigenetic modifications change during the process of skeletal muscle atrophy, the molecular mechanisms by which epigenetic regulatory proteins control skeletal muscle atrophy, and assess their translational potential. The role of epigenetics on muscle stem cells is also highlighted. In addition, we propose that alternative splicing interacts with epigenetic mechanisms to regulate skeletal muscle mass, offering a novel perspective that enhances our understanding of epigenetic inheritance's role and the regulatory network governing skeletal muscle atrophy. Collectively, advancements in the understanding of epigenetic mechanisms provide invaluable insights into the study of skeletal muscle atrophy. Moreover, this knowledge paves the way for identifying new avenues for the development of more effective therapeutic strategies and pharmaceutical interventions.
Collapse
Affiliation(s)
- Wenpeng Liang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 26001, China
- Department of Prenatal Screening and Diagnosis Center, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, 226001, China
| | - Feng Xu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People's Hospital of Nantong City, Nantong, 226001, China
| | - Li Li
- Nantong Center for Disease Control and Prevention, Medical School of Nantong University, Nantong, 226001, China
| | - Chunlei Peng
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University, Nantong, 226000, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 26001, China
| | - Jiaying Qiu
- Department of Prenatal Screening and Diagnosis Center, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, 226001, China.
| | - Junjie Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 26001, China.
| |
Collapse
|
2
|
Zhang W, Liu J, Zhou Y, Liu S, Wu J, Jiang H, Xu J, Mao H, Liu S, Chen B. Signaling pathways and regulatory networks in quail skeletal muscle development: insights from whole transcriptome sequencing. Poult Sci 2024; 103:103603. [PMID: 38457990 PMCID: PMC11067775 DOI: 10.1016/j.psj.2024.103603] [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: 11/17/2023] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/10/2024] Open
Abstract
Quail, as an advantageous avian model organism due to its compact size and short reproductive cycle, holds substantial potential for enhancing our understanding of skeletal muscle development. The quantity of skeletal muscle represents a vital economic trait in poultry production. Unraveling the molecular mechanisms governing quail skeletal muscle development is of paramount importance for optimizing meat and egg yield through selective breeding programs. However, a comprehensive characterization of the regulatory dynamics and molecular control underpinning quail skeletal muscle development remains elusive. In this study, through the application of HE staining on quail leg muscle sections, coupled with preceding fluorescence quantification PCR of markers indicative of skeletal muscle differentiation, we have delineated embryonic day 9 (E9) and embryonic day 14 (E14) as the start and ending points, respectively, of quail skeletal muscle differentiation. Then, we employed whole transcriptome sequencing to investigate the temporal expression profiles of leg muscles in quail embryos at the initiation of differentiation (E9) and upon completion of differentiation (E14). Our analysis revealed the expression patterns of 12,012 genes, 625 lncRNAs, 14,457 circRNAs, and 969 miRNAs in quail skeletal muscle samples. Differential expression analysis between the E14 and E9 groups uncovered 3,479 differentially expressed mRNAs, 124 lncRNAs, 292 circRNAs, and 154 miRNAs. Furthermore, enrichment analysis highlighted the heightened activity of signaling pathways related to skeletal muscle metabolism and intermuscular fat formation, such as the ECM-receptor interaction, focal adhesion, and PPAR signaling pathway during E14 skeletal muscle development. Conversely, the E9 stage exhibited a prevalence of pathways associated with myoblast proliferation, exemplified by cell cycle processes. Additionally, we constructed regulatory networks encompassing lncRNA‒mRNA, miRNA‒mRNA, lncRNA‒miRNA-mRNA, and circRNA-miRNA‒mRNA interactions, thus shedding light on their putative roles within quail skeletal muscle. Collectively, our findings illuminate the gene and non-coding RNA expression characteristics during quail skeletal muscle development, serving as a foundation for future investigations into the regulatory mechanisms governing non-coding RNA and quail skeletal muscle development in poultry production.
Collapse
Affiliation(s)
- Wentao Zhang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Jing Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China
| | - Ya'nan Zhou
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Shuibing Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Jintao Wu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Hongxia Jiang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Jiguo Xu
- Biotech Research Institute of Nanchang Normal University, Nanchang 330032, Jiangxi, P. R. China
| | - Huirong Mao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Sanfeng Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Biao Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China; Poultry Institute, Jiangxi Agricultural University, Nanchang 330045, P. R. China.
| |
Collapse
|
3
|
He L, Sun H, Wang H. 3D organization of enhancers in MuSCs. Curr Top Dev Biol 2024; 158:407-431. [PMID: 38670714 DOI: 10.1016/bs.ctdb.2024.01.011] [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 stem cells (MuSCs), also known as satellite cells, are essential for muscle growth and injury induced regeneration. In healthy adult muscle, MuSCs remain in a quiescent state located in a specialized niche beneath the basal lamina. Upon injury, these dormant MuSCs can quickly activate to re-enter the cell cycle and differentiate into new myofibers, while a subset undergoes self-renewal and returns to quiescence to restore the stem cell pool. The myogenic lineage progression is intricately controlled by complex intrinsic and extrinsic cues and coupled with dynamic transcriptional programs. In transcriptional regulation, enhancers are key regulatory elements controlling spatiotemporal gene expression through physical contacting promoters of target genes. The three-dimensional (3D) chromatin architecture is known to orchestrate the establishment of proper enhancer-promoter interactions throughout development and aging. However, studies dissecting the 3D organization of enhancers in MuSCs are just emerging. Here, we provide an overview of the general properties of enhancers and newly developed methods for assessing their activity. In particular, we summarize recent discoveries regarding the 3D rewiring of enhancers during MuSC specification, lineage progression as well as aging.
Collapse
Affiliation(s)
- Liangqiang He
- Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, P.R. China; Center for Neuromusculoskeletal Restorative Medicine, Hong Kong Science Park, New Territories, Hong Kong SAR, P.R. China
| | - Hao Sun
- Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, P.R. China
| | - Huating Wang
- Center for Neuromusculoskeletal Restorative Medicine, Hong Kong Science Park, New Territories, Hong Kong SAR, P.R. China; Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, P.R. China.
| |
Collapse
|
4
|
Murray GM, Sessle BJ. Pain-sensorimotor interactions: New perspectives and a new model. NEUROBIOLOGY OF PAIN (CAMBRIDGE, MASS.) 2024; 15:100150. [PMID: 38327725 PMCID: PMC10847382 DOI: 10.1016/j.ynpai.2024.100150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/25/2023] [Accepted: 01/19/2024] [Indexed: 02/09/2024]
Abstract
How pain and sensorimotor behavior interact has been the subject of research and debate for many decades. This article reviews theories bearing on pain-sensorimotor interactions and considers their strengths and limitations in the light of findings from experimental and clinical studies of pain-sensorimotor interactions in the spinal and craniofacial sensorimotor systems. A strength of recent theories is that they have incorporated concepts and features missing from earlier theories to account for the role of the sensory-discriminative, motivational-affective, and cognitive-evaluative dimensions of pain in pain-sensorimotor interactions. Findings acquired since the formulation of these recent theories indicate that additional features need to be considered to provide a more comprehensive conceptualization of pain-sensorimotor interactions. These features include biopsychosocial influences that range from biological factors such as genetics and epigenetics to psychological factors and social factors encompassing environmental and cultural influences. Also needing consideration is a mechanistic framework that includes other biological factors reflecting nociceptive processes and glioplastic and neuroplastic changes in sensorimotor and related brain and spinal cord circuits in acute or chronic pain conditions. The literature reviewed and the limitations of previous theories bearing on pain-sensorimotor interactions have led us to provide new perspectives on these interactions, and this has prompted our development of a new concept, the Theory of Pain-Sensorimotor Interactions (TOPSMI) that we suggest gives a more comprehensive framework to consider the interactions and their complexity. This theory states that pain is associated with plastic changes in the central nervous system (CNS) that lead to an activation pattern of motor units that contributes to the individual's adaptive sensorimotor behavior. This activation pattern takes account of the biological, psychological, and social influences on the musculoskeletal tissues involved in sensorimotor behavior and on the plastic changes and the experience of pain in that individual. The pattern is normally optimized in terms of biomechanical advantage and metabolic cost related to the features of the individual's musculoskeletal tissues and aims to minimize pain and any associated sensorimotor changes, and thereby maintain homeostasis. However, adverse biopsychosocial factors and their interactions may result in plastic CNS changes leading to less optimal, even maladaptive, sensorimotor changes producing motor unit activation patterns associated with the development of further pain. This more comprehensive theory points towards customized treatment strategies, in line with the management approaches to pain proposed in the biopsychosocial model of pain.
Collapse
Affiliation(s)
- Greg M. Murray
- Discipline of Restorative and Reconstructive Dentistry, Sydney School of Dentistry, Faculty of Medicine and Health, The University of Sydney, Darcy Road, Westmead, NSW 2145, Australia
| | - Barry J. Sessle
- Faculty of Dentistry and Temerty Faculty of Medicine Department of Physiology, and Centre for the Study of Pain, University of Toronto, 124 Edward St, Toronto, ON M5G 1G6, Canada
| |
Collapse
|
5
|
Yang BA, Larouche JA, Sabin KM, Fraczek PM, Parker SCJ, Aguilar CA. Three-dimensional chromatin re-organization during muscle stem cell aging. Aging Cell 2023; 22:e13789. [PMID: 36727578 PMCID: PMC10086523 DOI: 10.1111/acel.13789] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/29/2022] [Accepted: 01/11/2023] [Indexed: 02/03/2023] Open
Abstract
Age-related skeletal muscle atrophy or sarcopenia is a significant societal problem that is becoming amplified as the world's population continues to increase. The regeneration of damaged skeletal muscle is mediated by muscle stem cells, but in old age muscle stem cells become functionally attenuated. The molecular mechanisms that govern muscle stem cell aging encompass changes across multiple regulatory layers and are integrated by the three-dimensional organization of the genome. To quantitatively understand how hierarchical chromatin architecture changes during muscle stem cell aging, we generated 3D chromatin conformation maps (Hi-C) and integrated these datasets with multi-omic (chromatin accessibility and transcriptome) profiles from bulk populations and single cells. We observed that muscle stem cells display static behavior at global scales of chromatin organization during aging and extensive rewiring of local contacts at finer scales that were associated with variations in transcription factor binding and aberrant gene expression. These data provide insights into genome topology as a regulator of molecular function in stem cell aging.
Collapse
Affiliation(s)
- Benjamin A. Yang
- Department of Biomedical EngineeringUniversity of MichiganAnn ArborMichiganUSA
- Biointerfaces InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Jacqueline A. Larouche
- Department of Biomedical EngineeringUniversity of MichiganAnn ArborMichiganUSA
- Biointerfaces InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Kaitlyn M. Sabin
- Department of Biomedical EngineeringUniversity of MichiganAnn ArborMichiganUSA
- Biointerfaces InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Paula M. Fraczek
- Department of Biomedical EngineeringUniversity of MichiganAnn ArborMichiganUSA
- Biointerfaces InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Stephen C. J. Parker
- Program in Cellular and Molecular BiologyUniversity of MichiganAnn ArborMichiganUSA
- Department of Computational Medicine & BioinformaticsUniversity of MichiganAnn ArborMichiganUSA
- Department of Human GeneticsUniversity of MichiganAnn ArborMichiganUSA
| | - Carlos A. Aguilar
- Department of Biomedical EngineeringUniversity of MichiganAnn ArborMichiganUSA
- Biointerfaces InstituteUniversity of MichiganAnn ArborMichiganUSA
- Program in Cellular and Molecular BiologyUniversity of MichiganAnn ArborMichiganUSA
| |
Collapse
|
6
|
Jing J, Zhang M, Guo T, Pei F, Yang Y, Chai Y. Rodent incisor as a model to study mesenchymal stem cells in tissue homeostasis and repair. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.1068494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
The homeostasis of adult tissues, such as skin, hair, blood, and bone, requires continuous generation of differentiated progeny of stem cells. The rodent incisor undergoes constant renewal and can provide an extraordinary model for studying stem cells and their progeny in adult tissue homeostasis, cell differentiation and injury-induced regeneration. Meanwhile, cellular heterogeneity in the mouse incisor also provides an opportunity to study cell-cell communication between different cell types, including interactions between stem cells and their niche environment. More importantly, the molecular and cellular regulatory mechanisms revealed by the mouse incisor have broad implications for other organs. Here we review recent findings and advances using the mouse incisor as a model, including perspectives on the heterogeneity of cells in the mesenchyme, the niche environment, and signaling networks that regulate stem cell behavior. The progress from this field will not only expand the knowledge of stem cells and organogenesis, but also bridge a gap between animal models and tissue regeneration.
Collapse
|