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Kitajima Y, Yoshioka K, Mikumo Y, Ohki S, Maehara K, Ohkawa Y, Ono Y. Loss of Tob1 promotes muscle regeneration through muscle stem cell expansion. J Cell Sci 2024; 137:jcs261886. [PMID: 39037211 DOI: 10.1242/jcs.261886] [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: 12/11/2023] [Accepted: 06/17/2024] [Indexed: 07/23/2024] Open
Abstract
Muscle stem cells (MuSCs) play an indispensable role in postnatal muscle growth and hypertrophy in adults. MuSCs also retain a highly regenerative capacity and are therefore considered a promising stem cell source for regenerative therapy for muscle diseases. In this study, we identify tumor-suppressor protein Tob1 as a Pax7 target protein that negatively controls the population expansion of MuSCs. Tob1 protein is undetectable in the quiescent state but is upregulated during activation in MuSCs. Tob1 ablation in mice accelerates MuSC population expansion and boosts muscle regeneration. Moreover, inactivation of Tob1 in MuSCs ameliorates the efficiency of MuSC transplantation in a murine muscular dystrophy model. Collectively, selective targeting of Tob1 might be a therapeutic option for the treatment of muscular diseases, including muscular dystrophy and age-related sarcopenia.
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Affiliation(s)
- Yasuo Kitajima
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto, 860-0811, Japan
- Department of Immunology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8551, Japan
| | - Kiyoshi Yoshioka
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto, 860-0811, Japan
| | - Yoko Mikumo
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto, 860-0811, Japan
| | - Shun Ohki
- Department of Immunology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8551, Japan
| | - Kazumitsu Maehara
- Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yasuyuki Ohkawa
- Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yusuke Ono
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto, 860-0811, Japan
- Center for Metabolic Regulation of Healthy Aging (CMHA), Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
- Division of Biological Regulation, Medical Research Center for High Depth Omics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
- Muscle Biology Laboratory, Research Team for Aging Science, Tokyo Metropolitan Institute for Geriatrics and Gerontology (TMIG), Tokyo, 173-0015, Japan
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2
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Tönißen K, Franz GP, Albrecht E, Lutze P, Bochert R, Grunow B. Pikeperch muscle tissues: a comparative study of structure, enzymes, genes, and proteins in wild and farmed fish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:1527-1544. [PMID: 38733450 PMCID: PMC11286731 DOI: 10.1007/s10695-024-01354-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 05/02/2024] [Indexed: 05/13/2024]
Abstract
Pikeperch (Sander lucioperca) is a freshwater species and an internationally highly demanded fish in aquaculture. Despite intensive research efforts on this species, fundamental knowledge of skeletal muscle biology and structural characteristics is missing. Therefore, we conducted a comprehensive analysis of skeletal muscle parameters in adult pikeperch from two different origins, wild-caught specimens from a lake and those reared in a recirculating aquaculture system. The analyses comprised the biochemical characteristics (nucleic acid, protein content), enzyme activities (creatine kinase, lactate dehydrogenase, NADP-dependent isocitrate dehydrogenase), muscle-specific gene and protein expression (related to myofibre formation, regeneration and permanent growth, muscle structure), and muscle fibre structure. The findings reveal distinct differences between the skeletal muscle of wild and farmed pikeperch. Specifically, nucleic acid content, enzyme activity, and protein expression varied significantly. The higher enzyme activity observed in wild pikeperch suggests greater metabolically activity in their muscles. Conversely, farmed pikeperch indicated a potential for pronounced muscle growth. As the data on pikeperch skeletal muscle characteristics is sparse, the purpose of our study is to gain fundamental insights into the characteristics of adult pikeperch muscle. The presented data serve as a foundation for further research on percids' muscle biology and have the potential to contribute to advancements and adaptations in aquaculture practices.
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Affiliation(s)
- Katrin Tönißen
- Fish Growth Physiology Workgroup, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.
| | - George P Franz
- Fish Growth Physiology Workgroup, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Elke Albrecht
- Working Group Muscle-Fat Crosstalk, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Philipp Lutze
- Fish Growth Physiology Workgroup, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Ralf Bochert
- Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries (LFA MV), Institute of Fisheries, Research Station Aquaculture, Born, Germany
| | - Bianka Grunow
- Fish Growth Physiology Workgroup, Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.
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3
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Kuriki M, Korb A, Comai G, Tajbakhsh S. Interplay between Pitx2 and Pax7 temporally governs specification of extraocular muscle stem cells. PLoS Genet 2024; 20:e1010935. [PMID: 38875306 PMCID: PMC11178213 DOI: 10.1371/journal.pgen.1010935] [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: 08/24/2023] [Accepted: 03/05/2024] [Indexed: 06/16/2024] Open
Abstract
Gene regulatory networks that act upstream of skeletal muscle fate determinants are distinct in different anatomical locations. Despite recent efforts, a clear understanding of the cascade of events underlying the emergence and maintenance of the stem cell pool in specific muscle groups remains unresolved and debated. Here, we invalidated Pitx2 with multiple Cre-driver mice prenatally, postnatally, and during lineage progression. We showed that this gene becomes progressively dispensable for specification and maintenance of the muscle stem (MuSC) cell pool in extraocular muscles (EOMs) despite being, together with Myf5, a major upstream regulator during early development. Moreover, constitutive inactivation of Pax7 postnatally led to a greater loss of MuSCs in the EOMs compared to the limb. Thus, we propose a relay between Pitx2, Myf5 and Pax7 for EOM stem cell maintenance. We demonstrate also that MuSCs in the EOMs adopt a quiescent state earlier that those in limb muscles and do not spontaneously proliferate in the adult, yet EOMs have a significantly higher content of Pax7+ MuSCs per area pre- and post-natally. Finally, while limb MuSCs proliferate in the mdx mouse model for Duchenne muscular dystrophy, significantly less MuSCs were present in the EOMs of the mdx mouse model compared to controls, and they were not proliferative. Overall, our study provides a comprehensive in vivo characterisation of MuSC heterogeneity along the body axis and brings further insights into the unusual sparing of EOMs during muscular dystrophy.
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Affiliation(s)
- Mao Kuriki
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Amaury Korb
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Glenda Comai
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Shahragim Tajbakhsh
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
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4
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Geng S, Liu SB, He W, Pan X, Sun Y, Xue T, Han S, Lou J, Chang Y, Zheng J, Shi X, Li Y, Song YH. Deletion of TECRL promotes skeletal muscle repair by up-regulating EGR2. Proc Natl Acad Sci U S A 2024; 121:e2317495121. [PMID: 38753506 PMCID: PMC11126978 DOI: 10.1073/pnas.2317495121] [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: 11/12/2023] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
Myogenic regeneration relies on the proliferation and differentiation of satellite cells. TECRL (trans-2,3-enoyl-CoA reductase like) is an endoplasmic reticulum protein only expressed in cardiac and skeletal muscle. However, its role in myogenesis remains unknown. We show that TECRL expression is increased in response to injury. Satellite cell-specific deletion of TECRL enhances muscle repair by increasing the expression of EGR2 through the activation of the ERK1/2 signaling pathway, which in turn promotes the expression of PAX7. We further show that TECRL deletion led to the upregulation of the histone acetyltransferase general control nonderepressible 5, which enhances the transcription of EGR2 through acetylation. Importantly, we showed that AAV9-mediated TECRL silencing improved muscle repair in mice. These findings shed light on myogenic regeneration and muscle repair.
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Affiliation(s)
- Sha Geng
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Song-Bai Liu
- Suzhou Key Laboratory of Medical Biotechnology, Suzhou Vocational Health College, Suzhou215009, People’s Republic of China
| | - Wei He
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Xiangbin Pan
- Department of Structural Heart Disease, National Center for Cardiovascular Disease, China and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing100037, People’s Republic of China
| | - Yi Sun
- Department of Cardiovascular Surgery, Fuwai Yunnan Cardiovascular Hospital, Kunming650102, People’s Republic of China
| | - Ting Xue
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Shiyuan Han
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Jing Lou
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Ying Chang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Jiqing Zheng
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Xinghong Shi
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Yangxin Li
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
| | - Yao-Hua Song
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou215123, People’s Republic of China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, People’s Republic of China
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, SuzhouJiangsu215000, People’s Republic of China
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5
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Rallière C, Jagot S, Sabin N, Gabillard JC. Dynamics of pax7 expression during development, muscle regeneration, and in vitro differentiation of satellite cells in rainbow trout (Oncorhynchus mykiss). PLoS One 2024; 19:e0300850. [PMID: 38718005 PMCID: PMC11078358 DOI: 10.1371/journal.pone.0300850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/05/2024] [Indexed: 05/12/2024] Open
Abstract
Essential for muscle fiber formation and hypertrophy, muscle stem cells, also called satellite cells, reside beneath the basal lamina of the muscle fiber. Satellite cells have been commonly identified by the expression of the Paired box 7 (Pax7) due to its specificity and the availability of antibodies in tetrapods. In fish, the identification of satellite cells remains difficult due to the lack of specific antibodies in most species. Based on the development of a highly sensitive in situ hybridization (RNAScope®) for pax7, we showed that pax7+ cells were detected in the undifferentiated myogenic epithelium corresponding to the dermomyotome at day 14 post-fertilization in rainbow trout. Then, from day 24, pax7+ cells gradually migrated into the deep myotome and were localized along the muscle fibers and reach their niche in satellite position of the fibres after hatching. Our results showed that 18 days after muscle injury, a large number of pax7+ cells accumulated at the wound site compared to the uninjured area. During the in vitro differentiation of satellite cells, the percentage of pax7+ cells decreased from 44% to 18% on day 7, and some differentiated cells still expressed pax7. Taken together, these results show the dynamic expression of pax7 genes and the follow-up of these muscle stem cells during the different situations of muscle fiber formation in trout.
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Affiliation(s)
| | - Sabrina Jagot
- INRAE, LPGP, Rennes, France
- INRAE, Oniris, PAnTher, UMR 703, Oniris - Site de La Chantrerie, Nantes, France
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6
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Mitra A, Mandal S, Bose B, Shenoy P S. Unlocking the Potential of Obestatin: A Novel Peptide Intervention for Skeletal Muscle Regeneration and Prevention of Atrophy. Mol Biotechnol 2024; 66:948-959. [PMID: 38198052 DOI: 10.1007/s12033-023-01011-7] [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: 10/01/2023] [Accepted: 11/27/2023] [Indexed: 01/11/2024]
Abstract
Obestatin is derived from the same gene as that of ghrelin and their functions were perceived to be antagonistic. Recent developments have shown that although they are known to have contradictory functions, effect of obestatin on skeletal muscle regeneration is similar to that of ghrelin. Obestatin works through a receptor called GPR39, a ghrelin and motilin family receptor and transduces signals in skeletal muscle similar to that of ghrelin. Not only there is a similarity in the receptor family, but also obestatin targets similar proteins and transcription factors as that of ghrelin (for example, FoxO family members) for salvaging skeletal muscle atrophy. Moreover, like ghrelin, obestatin also works by inducing the transcription of Pax7 which is required for muscle stem cell mobilisation. Hence, there are quite some evidences which points to the fact that obestatin can be purposed as a peptide intervention to prevent skeletal muscle wasting and induce myogenesis. This review elaborates these aspects of obestatin which can be further exploited and addressed to bring obestatin as a clinical intervention towards preventing skeletal muscle atrophy and sarcopenia.
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Affiliation(s)
- Akash Mitra
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Deralakatte, Mangalore, Karnataka, 575018, India
| | - Samanwita Mandal
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Deralakatte, Mangalore, Karnataka, 575018, India
| | - Bipasha Bose
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Deralakatte, Mangalore, Karnataka, 575018, India
| | - Sudheer Shenoy P
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Deralakatte, Mangalore, Karnataka, 575018, India.
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7
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Lee B, Park Y, Lee Y, Kwon S, Shim J. Triptolide, a Cancer Cell Proliferation Inhibitor, Causes Zebrafish Muscle Defects by Regulating Notch and STAT3 Signaling Pathways. Int J Mol Sci 2024; 25:4675. [PMID: 38731894 PMCID: PMC11083231 DOI: 10.3390/ijms25094675] [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: 03/07/2024] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Triptolide is a natural compound in herbal remedies with anti-inflammatory and anti-proliferative properties. We studied its effects on critical signaling processes within the cell, including Notch1 and STAT3 signaling. Our research showed that triptolide reduces cancer cell proliferation by decreasing the expression of downstream targets of these signals. The levels of each signal-related protein and mRNA were analyzed using Western blot and qPCR methods. Interestingly, inhibiting one signal with a single inhibitor alone did not significantly reduce cancer cell proliferation. Instead, MTT assays showed that the simultaneous inhibition of Notch1 and STAT3 signaling reduced cell proliferation. The effect of triptolide was similar to a combination treatment with inhibitors for both signals. When we conducted a study on the impact of triptolide on zebrafish larvae, we found that it inhibited muscle development and interfered with muscle cell proliferation, as evidenced by differences in the staining of myosin heavy chain and F-actin proteins in confocal fluorescence microscopy. Additionally, we noticed that inhibiting a single type of signaling did not lead to any significant muscle defects. This implies that triptolide obstructs multiple signals simultaneously, including Notch1 and STAT3, during muscle development. Chemotherapy is commonly used to treat cancer, but it may cause muscle loss due to drug-related adverse reactions or other complex mechanisms. Our study suggests that anticancer agents like triptolide, inhibiting essential signaling pathways including Notch1 and STAT3 signaling, may cause muscle atrophy through anti-proliferative activity.
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Affiliation(s)
- Byongsun Lee
- Department of Bioresources Engineering, Sejong University, Seoul 05006, Republic of Korea; (B.L.); (Y.P.); (Y.L.); (S.K.)
- Institute of Medical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Yongjin Park
- Department of Bioresources Engineering, Sejong University, Seoul 05006, Republic of Korea; (B.L.); (Y.P.); (Y.L.); (S.K.)
| | - Younggwang Lee
- Department of Bioresources Engineering, Sejong University, Seoul 05006, Republic of Korea; (B.L.); (Y.P.); (Y.L.); (S.K.)
| | - Seyoung Kwon
- Department of Bioresources Engineering, Sejong University, Seoul 05006, Republic of Korea; (B.L.); (Y.P.); (Y.L.); (S.K.)
| | - Jaekyung Shim
- Department of Bioresources Engineering, Sejong University, Seoul 05006, Republic of Korea; (B.L.); (Y.P.); (Y.L.); (S.K.)
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8
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Fard D, Barbiera A, Dobrowolny G, Tamagnone L, Scicchitano BM. Semaphorins: Missing Signals in Age-dependent Alteration of Neuromuscular Junctions and Skeletal Muscle Regeneration. Aging Dis 2024; 15:517-534. [PMID: 37728580 PMCID: PMC10917540 DOI: 10.14336/ad.2023.0801] [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: 05/03/2023] [Accepted: 08/01/2023] [Indexed: 09/21/2023] Open
Abstract
Skeletal muscle is characterized by a remarkable capacity to rearrange after physiological changes and efficiently regenerate. However, during aging, extensive injury, or pathological conditions, the complete regenerative program is severely affected, with a progressive loss of muscle mass and function, a condition known as sarcopenia. The compromised tissue repair program is attributable to the gradual depletion of stem cells and to altered regulatory signals. Defective muscle regeneration can severely affect re-innervation by motor axons, and neuromuscular junctions (NMJs) development, ultimately leading to skeletal muscle atrophy. Defects in NMJ formation and maintenance occur physiologically during aging and are responsible for the pathogenesis of several neuromuscular disorders. However, it is still largely unknown how neuromuscular connections are restored on regenerating fibers. It has been suggested that attractive and repelling signals used for axon guidance could be implicated in this process; in particular, guidance molecules called semaphorins play a key role. Semaphorins are a wide family of extracellular regulatory signals with a multifaceted role in cell-cell communication. Originally discovered as axon guidance factors, they have been implicated in cancer progression, embryonal organogenesis, skeletal muscle innervation, and other physiological and developmental functions in different tissues. In particular, in skeletal muscle, specific semaphorin molecules are involved in the restoration and remodeling of the nerve-muscle connections, thus emphasizing their plausible role to ensure the success of muscle regeneration. This review article aims to discuss the impact of aging on skeletal muscle regeneration and NMJs remodeling and will highlight the most recent insights about the role of semaphorins in this context.
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Affiliation(s)
- Damon Fard
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica,Università Cattolica del Sacro Cuore, 00168 Roma, Italy.
| | - Alessandra Barbiera
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica,Università Cattolica del Sacro Cuore, 00168 Roma, Italy.
| | - Gabriella Dobrowolny
- DAHFMO-Unità di Istologia ed Embriologia Medica, Sapienza Università di Roma, 00161 Roma, Italy.
| | - Luca Tamagnone
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica,Università Cattolica del Sacro Cuore, 00168 Roma, Italy.
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy.
| | - Bianca Maria Scicchitano
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica,Università Cattolica del Sacro Cuore, 00168 Roma, Italy.
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy.
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Abel TR, Kosarek NN, Parvizi R, Jarnagin H, Torres GM, Bhandari R, Huang M, Toledo DM, Smith A, Popovich D, Mariani MP, Yang H, Wood T, Garlick J, Pioli PA, Whitfield ML. Single-cell epigenomic dysregulation of Systemic Sclerosis fibroblasts via CREB1/EGR1 axis in self-assembled human skin equivalents. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.22.586316. [PMID: 38585776 PMCID: PMC10996484 DOI: 10.1101/2024.03.22.586316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by skin fibrosis, internal organ involvement and vascular dropout. We previously developed and phenotypically characterized an in vitro 3D skin-like tissue model of SSc, and now analyze the transcriptomic (scRNA-seq) and epigenetic (scATAC-seq) characteristics of this model at single-cell resolution. SSc 3D skin-like tissues were fabricated using autologous fibroblasts, macrophages, and plasma from SSc patients or healthy control (HC) donors. SSc tissues displayed increased dermal thickness and contractility, as well as increased α-SMA staining. Single-cell transcriptomic and epigenomic analyses identified keratinocytes, macrophages, and five populations of fibroblasts (labeled FB1 - 5). Notably, FB1 APOE-expressing fibroblasts were 12-fold enriched in SSc tissues and were characterized by high EGR1 motif accessibility. Pseudotime analysis suggests that FB1 fibroblasts differentiate from a TGF-β1-responsive fibroblast population and ligand-receptor analysis indicates that the FB1 fibroblasts are active in macrophage crosstalk via soluble ligands including FGF2 and APP. These findings provide characterization of the 3D skin-like model at single cell resolution and establish that it recapitulates subsets of fibroblasts and macrophage phenotypes observed in skin biopsies.
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10
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Chen SL, Wu CC, Li N, Weng TH. Post-transcriptional regulation of myogenic transcription factors during muscle development and pathogenesis. J Muscle Res Cell Motil 2024; 45:21-39. [PMID: 38206489 DOI: 10.1007/s10974-023-09663-3] [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: 10/16/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024]
Abstract
The transcriptional regulation of skeletal muscle (SKM) development (myogenesis) has been documented for over 3 decades and served as a paradigm for tissue-specific cell type determination and differentiation. Myogenic stem cells (MuSC) in embryos and adult SKM are regulated by the transcription factors Pax3 and Pax7 for their stem cell characteristics, while their lineage determination and terminal differentiation are both dictated by the myogenic regulatory factors (MRF) that comprise Mrf4, Myf5, Myogenin, and MyoD. The myocyte enhancer factor Mef2c is activated by MRF during terminal differentiation and collaborates with them to promote myoblast fusion and differentiation. Recent studies have found critical regulation of these myogenic transcription factors at mRNA level, including subcellular localization, stability, and translational regulation. Therefore, the regulation of Pax3/7, MRFs and Mef2c mRNAs by RNA-binding factors and non-coding RNAs (ncRNA), including microRNAs and long non-coding RNAs (lncRNA), will be the focus of this review and the impact of this regulation on myogenesis will be further addressed. Interestingly, the stem cell characteristics of MuSC has been found to be critically regulated by ncRNAs, implying the involvement of ncRNAs in SKM homeostasis and regeneration. Current studies have further identified that some ncRNAs are implicated in the etiology of some SKM diseases and can serve as valuable tools/indicators for prediction of prognosis. The roles of ncRNAs in the MuSC biology and SKM disease etiology will also be discussed in this review.
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Affiliation(s)
- Shen-Liang Chen
- Department of Life Sciences, National Central University, 300 Jhongda Rd, Jhongli, 32001, Taiwan.
| | - Chuan-Che Wu
- Department of Life Sciences, National Central University, 300 Jhongda Rd, Jhongli, 32001, Taiwan
| | - Ning Li
- Department of Life Sciences, National Central University, 300 Jhongda Rd, Jhongli, 32001, Taiwan
| | - Tzu-Han Weng
- Department of Life Sciences, National Central University, 300 Jhongda Rd, Jhongli, 32001, Taiwan
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11
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Huang C, Feng F, Dai R, Ren W, Li X, Zhaxi T, Ma X, Wu X, Chu M, La Y, Bao P, Guo X, Pei J, Yan P, Liang C. Whole-transcriptome analysis of longissimus dorsi muscle in cattle-yaks reveals the regulatory functions of ADAMTS6 gene in myoblasts. Int J Biol Macromol 2024; 262:129985. [PMID: 38342263 DOI: 10.1016/j.ijbiomac.2024.129985] [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: 09/15/2023] [Revised: 01/21/2024] [Accepted: 01/31/2024] [Indexed: 02/13/2024]
Abstract
Cattle-yak, which is the hybrid F1 generation of cattle and yak, demonstrates better production performance compared to yak. However, there is limited research on the molecular mechanisms responsible for the muscle development of cattle-yak. To address this knowledge gap, a comprehensive transcriptomic survey of the longissimus dorsi muscle in cattle-yak was conducted. Three transcript types, namely lncRNAs, miRNAs, and circRNAs, along with protein-coding genes were characterized at two developmental stages (6 m, 18 m) of cattle-yak. The results revealed significant enrichment of these transcripts into pathways related to myoblast differentiation and muscle development signaling. Additionally, the study identified the TCONS00024465/circHIPK3-bta-miR-499-ADAMTS6 regulatory network, which may play a crucial role in the muscle development of cattle-yak by combining the transcriptome data of yak and constructing the ceRNA co-expression network. HEK 293 T cells were used to validate that TCONS00024465 and circHIPK3 are located upstream of bta-miR-499, and can competitively bind to bta-miR-499 as ceRNA. The study also verified that ADAMTS6 regulates skeletal muscle development by inhibiting myoblast proliferation, promoting myoblast differentiation, and positively regulating the apoptosis of myoblasts. Taken together, this study provides new insights into the advantages of cattle-yak production performance and offers a molecular basis for further research on muscle development.
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Affiliation(s)
- Chun Huang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Fen Feng
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Rongfeng Dai
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Wenwen Ren
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Xinyi Li
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Ta Zhaxi
- Animal Husbandry and Veterinary Workstation in Qilian County, Qilian 810400, China
| | - Xiaoming Ma
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Xiaoyun Wu
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Yongfu La
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Pengjia Bao
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Xian Guo
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Jie Pei
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
| | - Chunnian Liang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
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12
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Cao X, Xue L, Yu X, Yan Y, Lu J, Luo X, Wang H, Wang J. Myogenic exosome miR-140-5p modulates skeletal muscle regeneration and injury repair by regulating muscle satellite cells. Aging (Albany NY) 2024; 16:4609-4630. [PMID: 38428405 PMCID: PMC10968704 DOI: 10.18632/aging.205617] [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: 10/16/2023] [Accepted: 01/23/2024] [Indexed: 03/03/2024]
Abstract
Muscle satellite cells (SCs) play a crucial role in the regeneration and repair of skeletal muscle injuries. Previous studies have shown that myogenic exosomes can enhance satellite cell proliferation, while the expression of miR-140-5p is significantly reduced during the repair process of mouse skeletal muscle injuries induced by BaCl2. This study aims to investigate the potential of myogenic exosomes carrying miR-140-5p inhibitors to activate SCs and influence the regeneration of injured muscles. Myogenic progenitor cell exosomes (MPC-Exo) and contained miR-140-5p mimics/inhibitors myogenic exosomes (MPC-Exo140+ and MPC-Exo140-) were employed to treat SCs and use the model. The results demonstrate that miR-140-5p regulates SC proliferation by targeting Pax7. Upon the addition of MPC-Exo and MPC-Exo140-, Pax7 expression in SCs significantly increased, leading to the transition of the cell cycle from G1 to S phase and an enhancement in cell proliferation. Furthermore, the therapeutic effect of MPC-Exo140- was validated in animal model, where the expression of muscle growth-related genes substantially increased in the gastrocnemius muscle. Our research demonstrates that MPC-Exo140- can effectively activate dormant muscle satellite cells, initiating their proliferation and differentiation processes, ultimately leading to the formation of new skeletal muscle cells and promoting skeletal muscle repair and remodeling.
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Affiliation(s)
- Xiaorui Cao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Linli Xue
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiuju Yu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Yi Yan
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Jiayin Lu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiaomao Luo
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Haidong Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Juan Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
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13
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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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14
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Endo Y, Zhu C, Giunta E, Guo C, Koh DJ, Sinha I. The Role of Hypoxia and Hypoxia Signaling in Skeletal Muscle Physiology. Adv Biol (Weinh) 2024; 8:e2200300. [PMID: 37817370 DOI: 10.1002/adbi.202200300] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/06/2023] [Indexed: 10/12/2023]
Abstract
Hypoxia and hypoxia signaling play an integral role in regulating skeletal muscle physiology. Environmental hypoxia and tissue hypoxia in muscles cue for their appropriate physiological response and adaptation, and cause an array of cellular and metabolic changes. In addition, muscle stem cells (satellite cells), exist in a hypoxic state, and this intrinsic hypoxic state correlates with their quiescence and stemness. The mechanisms of hypoxia-mediated regulation of satellite cells and myogenesis are yet to be characterized, and their seemingly contradicting effects reported leave their exact roles somewhat perplexing. This review summarizes the recent findings on the effect of hypoxia and hypoxia signaling on the key aspects of muscle physiology, namely, stem cell maintenance and myogenesis with a particular attention given to distinguish the intrinsic versus local hypoxia in an attempt to better understand their respective regulatory roles and how their relationship affects the overall response. This review further describes their mechanistic links and their possible implications on the relevant pathologies and therapeutics.
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Affiliation(s)
- Yori Endo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
| | - Christina Zhu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
- Texas Tech University Health Sciences Center School of Medicine, Lubbock, TX, 79430, USA
| | - Elena Giunta
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
- Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, 80539, München, Germany
| | - Cynthia Guo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
- Warren Alpert Medical School, Brown University, Providence, RI, 02903, USA
| | - Daniel J Koh
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
| | - Indranil Sinha
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard University, Boston, MA, 02115, USA
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15
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Roman A, Huntemer-Silveira A, Waldron MA, Khalid Z, Blake J, Parr AM, Low WC. Cell Transplantation for Repair of the Spinal Cord and Prospects for Generating Region-Specific Exogenic Neuronal Cells. Cell Transplant 2024; 33:9636897241241998. [PMID: 38590295 PMCID: PMC11005494 DOI: 10.1177/09636897241241998] [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: 09/25/2023] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
Spinal cord injury (SCI) is associated with currently irreversible consequences in several functional components of the central nervous system. Despite the severity of injury, there remains no approved treatment to restore function. However, with a growing number of preclinical studies and clinical trials, cell transplantation has gained significant potential as a treatment for SCI. Researchers have identified several cell types as potential candidates for transplantation. To optimize successful functional outcomes after transplantation, one key factor concerns generating neuronal cells with regional and subtype specificity, thus calling on the developmental transcriptome patterning of spinal cord cells. A potential source of spinal cord cells for transplantation is the generation of exogenic neuronal progenitor cells via the emerging technologies of gene editing and blastocyst complementation. This review highlights the use of cell transplantation to treat SCI in the context of relevant developmental gene expression patterns useful for producing regionally specific exogenic spinal cells via in vitro differentiation and blastocyst complementation.
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Affiliation(s)
- Alex Roman
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Anne Huntemer-Silveira
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Madison A. Waldron
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Zainab Khalid
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Jeffrey Blake
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Ann M. Parr
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Walter C. Low
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
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16
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Song C, Wang Q, Qi Q, Chen X, Wang Y, Zhang C, Fang X. MiR-495-3p regulates myoblasts proliferation and differentiation through targeting cadherin 2. Anim Biotechnol 2023; 34:2617-2625. [PMID: 35951546 DOI: 10.1080/10495398.2022.2109042] [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: 11/01/2022]
Abstract
MircoRNAs (miRNAs) play an important role in skeletal muscle development. Previous study had found that miR-495-3p was differentially expressed in fetal and adult goat skeletal muscle, but its function in myogenic proliferation and differentiation are unclear. Herein, we found the expression of miR-495-3p in C2C12 was downregulated during proliferation stage and upregulated during differentiation stage. Functionally, overexpression of miR-495-3p in C2C12 inhibited proliferation, and promoted myogenic differentiation. Mechanistically, the luciferase reporter assay demonstrated that cadherin 2 (CDH2) was a potential target gene of miR-495-3p. Importantly, overexpression of miR-495-3p inhibited CDH2 expression. Furthermore, knockdown of CDH2 in C2C12 inhibited proliferation and promoted myogenic differentiation. Together, the results showed that miR-495-3p inhibits C2C12 proliferation and promotes myogenic differentiation through targeting CDH2.
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Affiliation(s)
- Chengchuang Song
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Qi Wang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Qi Qi
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Xi Chen
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Yanhong Wang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Chunlei Zhang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
| | - Xingtang Fang
- School of Life Science, Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, China
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17
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Schumacher T, Reyer H, Maak S, Röntgen M. Homer 1 genotype AA variant relates to congenital splay leg syndrome in piglets by repressing Pax7 in myogenic progenitors. Front Vet Sci 2023; 10:1028879. [PMID: 38099002 PMCID: PMC10719620 DOI: 10.3389/fvets.2023.1028879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/06/2023] [Indexed: 12/17/2023] Open
Abstract
Introduction Porcine congenital splay leg syndrome (PCS) is a major birth defect in piglets, resulting in lameness and high mortality rates. The multifactorial pathogenesis of PSC is not well understood but includes a polygenic inheritance. Methods Here, in addition to morphological investigations, we characterized the expression of myogenic genes and functional (proliferation and differentiation) properties of myogenic precursor/satellite cells (SATCs) in 1 day-old PCS piglets, non-affected littermates (LCs), and piglets from PCS-free healthy litters (HCs). In addition, PCS phenotypes were related to the SNP Homer1_rs325197091 within the Homer1 locus, which has been identified as a potential hereditary cause of PCS. Results and discussion Samples from musculus semitendinosus (ST) of PCS piglets had a higher proportion of type II fibers, reflecting myofiber immaturity. In addition, myofiber atrophy, a lower number of myonuclei per fiber (ST), and a higher apoptotic activity (in ST and longissimus dorsi muscle; LD) were found in the PCS group. A higher proportion of cycling committed myoblasts (Pax7+/Ki67+ cells) occurred in samples from PCS-affected piglets, and on the other hand, the mRNA expression of genes involved in differentiation (muscle differentiation 1; MyoD, myogenin; MyoG) was repressed compared with HCs. Cultured SATCs from PCS-affected animals showed a temporal shift in peak expression of Pax7, MyoD, and MyoG toward days 3 and 4 of their 7 days differentiation regime. In vitro experiments with isolated SATCs confirmed the lower differentiation potential and the delayed progression of the myogenic processes in cells from piglets with PCS phenotype. In addition, Pax7 and desmin were differently expressed in Homer1_rs325197091 genotype variants (GG, GA, and AA). Both genes showed the lowest expression in the homozygous AA-variant, which was most frequently found in PCS-affected animals. The homozygous AA-variant was also associated with lower expression of the truncated Homer1-subtype 205. Thus, we hypothesize that in PCS, the balance between Homer1 proteins and its signaling functions is changed in a way detrimental to the myogenic differentiation program. Our results demonstrated direct negative effects of the Homer1 AA genotype on Pax7 expression, but the exact mode of action still needs to be elucidated.
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Affiliation(s)
- Toni Schumacher
- Institute of Muscle Biology and Growth, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Henry Reyer
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Steffen Maak
- Institute of Muscle Biology and Growth, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Monika Röntgen
- Institute of Muscle Biology and Growth, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
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18
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Koopmans PJ, Ismaeel A, Goljanek-Whysall K, Murach KA. The roles of miRNAs in adult skeletal muscle satellite cells. Free Radic Biol Med 2023; 209:228-238. [PMID: 37879420 PMCID: PMC10911817 DOI: 10.1016/j.freeradbiomed.2023.10.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/16/2023] [Accepted: 10/22/2023] [Indexed: 10/27/2023]
Abstract
Satellite cells are bona fide muscle stem cells that are indispensable for successful post-natal muscle growth and regeneration after severe injury. These cells also participate in adult muscle adaptation in several capacities. MicroRNAs (miRNAs) are post-transcriptional regulators of mRNA that are implicated in several aspects of stem cell function. There is evidence to suggest that miRNAs affect satellite cell behavior in vivo during development and myogenic progenitor behavior in vitro, but the role of miRNAs in adult skeletal muscle satellite cells is less studied. In this review, we provide evidence for how miRNAs control satellite cell function with emphasis on satellite cells of adult skeletal muscle in vivo. We first outline how miRNAs are indispensable for satellite cell viability and control the phases of myogenesis. Next, we discuss the interplay between miRNAs and myogenic cell redox status, senescence, and communication to other muscle-resident cells during muscle adaptation. Results from recent satellite cell miRNA profiling studies are also summarized. In vitro experiments in primary myogenic cells and cell lines have been invaluable for exploring the influence of miRNAs, but we identify a need for novel genetic tools to further interrogate how miRNAs control satellite cell behavior in adult skeletal muscle in vivo.
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Affiliation(s)
- Pieter Jan Koopmans
- Exercise Science Research Center, Molecular Muscle Mass Regulation Laboratory, Department of Health, Human Performance, and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA; Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Ahmed Ismaeel
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, 40506, USA
| | - Katarzyna Goljanek-Whysall
- School of Medicine, College of Medicine, Nursing, and Health Sciences, University of Galway, Galway, Ireland
| | - Kevin A Murach
- Exercise Science Research Center, Molecular Muscle Mass Regulation Laboratory, Department of Health, Human Performance, and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA; Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR, 72701, USA.
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19
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Ninfali C, Siles L, Esteve-Codina A, Postigo A. The mesodermal and myogenic specification of hESCs depend on ZEB1 and are inhibited by ZEB2. Cell Rep 2023; 42:113222. [PMID: 37819755 DOI: 10.1016/j.celrep.2023.113222] [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: 03/12/2022] [Revised: 08/02/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023] Open
Abstract
Human embryonic stem cells (hESCs) can differentiate into any cell lineage. Here, we report that ZEB1 and ZEB2 promote and inhibit mesodermal-to-myogenic specification of hESCs, respectively. Knockdown and/or overexpression experiments of ZEB1, ZEB2, or PAX7 in hESCs indicate that ZEB1 is required for hESC Nodal/Activin-mediated mesodermal specification and PAX7+ human myogenic progenitor (hMuP) generation, while ZEB2 inhibits these processes. ZEB1 downregulation induces neural markers, while ZEB2 downregulation induces mesodermal/myogenic markers. Mechanistically, ZEB1 binds to and transcriptionally activates the PAX7 promoter, while ZEB2 binds to and activates the promoter of the neural OTX2 marker. Transplanting ZEB1 or ZEB2 knocked down hMuPs into the muscles of a muscular dystrophy mouse model, showing that hMuP engraftment and generation of dystrophin-positive myofibers depend on ZEB1 and are inhibited by ZEB2. The mouse model results suggest that ZEB1 expression and/or downregulating ZEB2 in hESCs may also enhance hESC regenerative capacity for human muscular dystrophy therapy.
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Affiliation(s)
- Chiara Ninfali
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036 Barcelona, Spain
| | - Laura Siles
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036 Barcelona, Spain
| | | | - Antonio Postigo
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036 Barcelona, Spain; Molecular Targets Program, J.G. Brown Center, Louisville University Healthcare Campus, Louisville, KY 40202, USA; ICREA, 08010 Barcelona, Spain.
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20
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Jacob T, Annusver K, Czarnewski P, Dalessandri T, Kalk C, Levra Levron C, Campamà Sanz N, Kastriti ME, Mikkola ML, Rendl M, Lichtenberger BM, Donati G, Björklund ÅK, Kasper M. Molecular and spatial landmarks of early mouse skin development. Dev Cell 2023; 58:2140-2162.e5. [PMID: 37591247 PMCID: PMC11088744 DOI: 10.1016/j.devcel.2023.07.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 05/05/2023] [Accepted: 07/21/2023] [Indexed: 08/19/2023]
Abstract
A wealth of specialized cell populations within the skin facilitates its hair-producing, protective, sensory, and thermoregulatory functions. How the vast cell-type diversity and tissue architecture develops is largely unexplored. Here, with single-cell transcriptomics, spatial cell-type assignment, and cell-lineage tracing, we deconstruct early embryonic mouse skin during the key transitions from seemingly uniform developmental precursor states to a multilayered, multilineage epithelium, and complex dermal identity. We identify the spatiotemporal emergence of hair-follicle-inducing, muscle-supportive, and fascia-forming fibroblasts. We also demonstrate the formation of the panniculus carnosus muscle (PCM), sprouting blood vessels without pericyte coverage, and the earliest residence of mast and dendritic immune cells in skin. Finally, we identify an unexpected epithelial heterogeneity within the early single-layered epidermis and a signaling-rich periderm layer. Overall, this cellular and molecular blueprint of early skin development-which can be explored at https://kasperlab.org/tools-establishes histological landmarks and highlights unprecedented dynamic interactions among skin cells.
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Affiliation(s)
- Tina Jacob
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Karl Annusver
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Paulo Czarnewski
- Department of Biochemistry and Biophysics, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Stockholm University, 17165 Stockholm, Sweden
| | - Tim Dalessandri
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Christina Kalk
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Chiara Levra Levron
- Department of Life Sciences and Systems Biology, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy
| | - Nil Campamà Sanz
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Maria Eleni Kastriti
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, 1090 Vienna, Austria
| | - Marja L Mikkola
- Cell and Tissue Dynamics Research Program, Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, 00014 Helsinki, Finland
| | - Michael Rendl
- Institute for Regenerative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Beate M Lichtenberger
- Skin and Endothelium Research Division, Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Giacomo Donati
- Department of Life Sciences and Systems Biology, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy
| | - Åsa K Björklund
- Department of Life Science, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Chalmers University of Technology, 41296 Göteborg, Sweden
| | - Maria Kasper
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden.
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21
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Mademtzoglou D, Geara P, Mourikis P, Relaix F. Pax7 haploinsufficiency impairs muscle stem cell function in Cre-recombinase mice and underscores the importance of appropriate controls. Stem Cell Res Ther 2023; 14:294. [PMID: 37833800 PMCID: PMC10576335 DOI: 10.1186/s13287-023-03506-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Ever since its introduction as a genetic tool, the Cre-lox system has been widely used for molecular genetic studies in vivo in the context of health and disease, as it allows time- and cell-specific gene modifications. However, insertion of the Cre-recombinase cassette in the gene of interest can alter transcription, protein expression, or function, either directly, by modifying the landscape of the locus, or indirectly, due to the lack of genetic compensation or by indirect impairment of the non-targeted allele. This is sometimes the case when Cre-lox is used for muscle stem cell studies. Muscle stem cells are required for skeletal muscle growth, regeneration and to delay muscle disease progression, hence providing an attractive model for stem cell research. Since the transcription factor Pax7 is specifically expressed in all muscle stem cells, tamoxifen-inducible Cre cassettes (CreERT2) have been inserted into this locus by different groups to allow targeted gene recombination. Here we compare the two Pax7-CreERT2 mouse lines that are mainly used to evaluate muscle regeneration and development of pathological features upon deletion of specific factors or pathways. We applied diverse commonly used tamoxifen schemes of CreERT2 activation, and we analyzed muscle repair after cardiotoxin-induced injury. We show that consistently the Pax7-CreERT2 allele targeted into the Pax7 coding sequence (knock-in/knock-out allele) produces an inherent defect in regeneration, manifested as delayed post-injury repair and reduction in muscle stem cell numbers. In genetic ablation studies lacking proper controls, this inherent defect could be misinterpreted as being provoked by the deletion of the factor of interest. Instead, using an alternative Pax7-CreERT2 allele that maintains bi-allelic Pax7 expression or including appropriate controls can prevent misinterpretation of experimental data. The findings presented here can guide researchers establish appropriate experimental design for muscle stem cell genetic studies.
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Affiliation(s)
| | - Perla Geara
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France
| | | | - Frederic Relaix
- Univ Paris Est Creteil, INSERM, IMRB, F-94010, Creteil, France.
- Ecole nationale vétérinaire d'Alfort, IMRB, F-94700, Maisons-Alfort, France.
- EFS, IMRB, F-94010, Creteil, France.
- AP-HP, Hopital Mondor, Service d'histologie, F-94010, Creteil, France.
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22
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Sroka MW, Skopelitis D, Vermunt MW, Preall JB, El Demerdash O, de Almeida LMN, Chang K, Utama R, Gryder B, Caligiuri G, Ren D, Nalbant B, Milazzo JP, Tuveson DA, Dobin A, Hiebert SW, Stengel KR, Mantovani R, Khan J, Kohli RM, Shi J, Blobel GA, Vakoc CR. Myo-differentiation reporter screen reveals NF-Y as an activator of PAX3-FOXO1 in rhabdomyosarcoma. Proc Natl Acad Sci U S A 2023; 120:e2303859120. [PMID: 37639593 PMCID: PMC10483665 DOI: 10.1073/pnas.2303859120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/11/2023] [Indexed: 08/31/2023] Open
Abstract
Recurrent chromosomal rearrangements found in rhabdomyosarcoma (RMS) produce the PAX3-FOXO1 fusion protein, which is an oncogenic driver and a dependency in this disease. One important function of PAX3-FOXO1 is to arrest myogenic differentiation, which is linked to the ability of RMS cells to gain an unlimited proliferation potential. Here, we developed a phenotypic screening strategy for identifying factors that collaborate with PAX3-FOXO1 to block myo-differentiation in RMS. Unlike most genes evaluated in our screen, we found that loss of any of the three subunits of the Nuclear Factor Y (NF-Y) complex leads to a myo-differentiation phenotype that resembles the effect of inactivating PAX3-FOXO1. While the transcriptomes of NF-Y- and PAX3-FOXO1-deficient RMS cells bear remarkable similarity to one another, we found that these two transcription factors occupy nonoverlapping sites along the genome: NF-Y preferentially occupies promoters, whereas PAX3-FOXO1 primarily binds to distal enhancers. By integrating multiple functional approaches, we map the PAX3 promoter as the point of intersection between these two regulators. We show that NF-Y occupies CCAAT motifs present upstream of PAX3 to function as a transcriptional activator of PAX3-FOXO1 expression in RMS. These findings reveal a critical upstream role of NF-Y in the oncogenic PAX3-FOXO1 pathway, highlighting how a broadly essential transcription factor can perform tumor-specific roles in governing cellular state.
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Affiliation(s)
| | | | - Marit W. Vermunt
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA19104
| | | | | | | | - Kenneth Chang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Raditya Utama
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | - Berkley Gryder
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH44106
| | | | - Diqiu Ren
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA19104
| | - Benan Nalbant
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY11724
| | | | | | | | - Scott W. Hiebert
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN37232
| | - Kristy R. Stengel
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY10461
| | - Roberto Mantovani
- Dipartimento di Bioscienze, Università degli Studi di Milano, 20133Milano, Italy
| | - Javed Khan
- Genetics Branch, National Cancer Institute, NIH, Bethesda, MD20892
| | - Rahul M. Kohli
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, PA19104
| | - Junwei Shi
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA19104
| | - Gerd A. Blobel
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA19104
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23
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Bascunana V, Pelletier A, Gouhier A, Bemmo A, Balsalobre A, Drouin J. Chromatin opening ability of pioneer factor Pax7 depends on unique isoform and C-terminal domain. Nucleic Acids Res 2023; 51:7254-7268. [PMID: 37326021 PMCID: PMC10415112 DOI: 10.1093/nar/gkad520] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/25/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023] Open
Abstract
Pioneer factors are transcription factors (TFs) that have the unique ability to recognise their target DNA sequences within closed chromatin. Whereas their interactions with cognate DNA is similar to other TFs, their ability to interact with chromatin remains poorly understood. Having previously defined the modalities of DNA interactions for the pioneer factor Pax7, we have now used natural isoforms of this pioneer as well as deletion and replacement mutants to investigate the Pax7 structural requirements for chromatin interaction and opening. We show that the GL+ natural isoform of Pax7 that has two extra amino acids within the DNA binding paired domain is unable to activate the melanotrope transcriptome and to fully activate a large subset of melanotrope-specific enhancers targeted for Pax7 pioneer action. This enhancer subset remains in the primed state rather than being fully activated, despite the GL+ isoform having similar intrinsic transcriptional activity as the GL- isoform. C-terminal deletions of Pax7 lead to the same loss of pioneer ability, with similar reduced recruitments of the cooperating TF Tpit and of the co-regulators Ash2 and BRG1. This suggests complex interrelations between the DNA binding and C-terminal domains of Pax7 that are crucial for its chromatin opening pioneer ability.
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Affiliation(s)
- Virginie Bascunana
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
| | - Audrey Pelletier
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
| | - Arthur Gouhier
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
| | - Amandine Bemmo
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
| | - Aurelio Balsalobre
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
| | - Jacques Drouin
- Laboratoire de génétique moléculaire, Institut de recherches cliniques de Montréal (IRCM), 110 Avenue des Pins ouest, Montréal, QC H2W 1R7, Canada
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24
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Scala P, Manzo P, Longo R, Giudice V, Ciardulli MC, Serio B, Selleri C, Guadagno L, Rehak L, Maffulli N, Della Porta G. Contribution of peripheral blood mononuclear cells isolated by advanced filtration system to myogenesis of human bone marrow mesenchymal stem cells co-cultured with myoblasts. Heliyon 2023; 9:e17141. [PMID: 37484299 PMCID: PMC10361327 DOI: 10.1016/j.heliyon.2023.e17141] [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: 11/03/2022] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
Background Contribution of peripheral blood mononuclear cells (PBMCs) in myogenesis is still under debate, even though blood filtration systems are commonly used in clinical practice for successfully management of critic limb ischemia. Objectives A commercial blood filter used for autologous human PBMC transplantation procedures is characterized and used to collect PBMCs, that are then added to well-established 2D in vitro myogenic models assembled with a co-culture of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) and skeletal myoblasts (hSkMs) whit the aim of investigating their potential contribution to stem cell myogenic commitment. Methods A commercial blood filter was physically and chemically studied to understand its morphological characteristics and composition. PBMCs were concentrated using this system, further isolated by Ficoll-Paque density gradient centrifugation, and then added in an upper transwell chamber to a 2D co-culture of hBM-MSCs and hSkMs. Myogenic commitment was investigated by RT-PCR, immunofluorescence, and flow cytometry immunophenotyping. Cytokine levels were monitored by ELISA assay in culture media. Results The blood filtration system was disassembled and appeared to be formed by twelve membranes of poly-butylene terephthalate fibers (diameters, 0.9-4.0 μm) with pore size distribution of 1-20 μm. Filter functional characterization was achieved by characterizing collected cells by flow cytometry. Subsequently, collected PBMCs fraction was added to an in-vitro model of hBM-MSC myogenic commitment. In the presence of PBMCs, stem cells significantly upregulated myogenic genes, such as Desmin and MYH2, as confirmed by qRT-PCR and expressed related proteins by immunofluorescence (IF) assay, while downregulated pro-inflammatory cytokines (IL12A at day 14) along the 21 days of culture. Novelty Our work highlights chemical-physical properties of commercial blood filter and suggests that blood filtrated fraction of PBMC might modulate cytokine expression in response to muscle injury and promote myogenic events, supporting their clinical use in autologous transplantation.
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Affiliation(s)
- Pasqualina Scala
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
| | - Paola Manzo
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D'Aragona”, Largo Città d'Ippocrate, 1, 84131 Salerno SA, Italy
| | - Raffaele Longo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano SA, Italy
| | - Valentina Giudice
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D'Aragona”, Largo Città d'Ippocrate, 1, 84131 Salerno SA, Italy
| | - Maria Camilla Ciardulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
| | - Bianca Serio
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D'Aragona”, Largo Città d'Ippocrate, 1, 84131 Salerno SA, Italy
| | - Carmine Selleri
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D'Aragona”, Largo Città d'Ippocrate, 1, 84131 Salerno SA, Italy
| | - Liberata Guadagno
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano SA, Italy
| | - Laura Rehak
- Athena Biomedical Innovations, Viale Europa 139, Florence, 50126, Italy
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
- Centre for Sports and Exercise Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, 275 Bancroft Road, London E1 4DG, UK
| | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 43, 84081 Baronissi SA, Italy
- Interdepartment Centre BIONAM, Università di Salerno, via Giovanni Paolo II, 132, 84084 Fisciano SA, Italy
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25
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Fujita R, Mizuno S, Sadahiro T, Hayashi T, Sugasawa T, Sugiyama F, Ono Y, Takahashi S, Ieda M. Generation of a MyoD knock-in reporter mouse line to study muscle stem cell dynamics and heterogeneity. iScience 2023; 26:106592. [PMID: 37250337 PMCID: PMC10214404 DOI: 10.1016/j.isci.2023.106592] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 02/19/2023] [Accepted: 03/31/2023] [Indexed: 05/31/2023] Open
Abstract
Myoblast determination protein 1 (MyoD) dynamics define the activation status of muscle stem cells (MuSCs), aiding in muscle tissue regeneration after injury. However, the lack of experimental platforms to monitor MyoD dynamics in vitro and in vivo has hampered the investigation of fate determination and heterogeneity of MuSCs. Herein, we report a MyoD knock-in (MyoD-KI) reporter mouse expressing tdTomato at the endogenous MyoD locus. Expression of tdTomato in MyoD-KI mice recapitulated the endogenous MyoD expression dynamics in vitro and during the early phase of regeneration in vivo. Additionally, we showed that tdTomato fluorescence intensity defines MuSC activation status without immunostaining. Based on these features, we developed a high-throughput screening system to assess the effects of drugs on the behavior of MuSCs in vitro. Thus, MyoD-KI mice are an invaluable resource for studying the dynamics of MuSCs, including their fate decisions and heterogeneity, and for drug screening in stem cell therapy.
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Affiliation(s)
- Ryo Fujita
- Division of Regenerative Medicine, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Taketaro Sadahiro
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Takuto Hayashi
- Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Takehito Sugasawa
- Laboratory of Clinical Examination and Sports Medicine, Department of Clinical Medicine, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Yusuke Ono
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
- Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Masaki Ieda
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
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26
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Pomella S, Danielli SG, Alaggio R, Breunis WB, Hamed E, Selfe J, Wachtel M, Walters ZS, Schäfer BW, Rota R, Shipley JM, Hettmer S. Genomic and Epigenetic Changes Drive Aberrant Skeletal Muscle Differentiation in Rhabdomyosarcoma. Cancers (Basel) 2023; 15:2823. [PMID: 37345159 DOI: 10.3390/cancers15102823] [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] [Received: 03/19/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
Rhabdomyosarcoma (RMS), the most common soft-tissue sarcoma in children and adolescents, represents an aberrant form of skeletal muscle differentiation. Both skeletal muscle development, as well as regeneration of adult skeletal muscle are governed by members of the myogenic family of regulatory transcription factors (MRFs), which are deployed in a highly controlled, multi-step, bidirectional process. Many aspects of this complex process are deregulated in RMS and contribute to tumorigenesis. Interconnected loops of super-enhancers, called core regulatory circuitries (CRCs), define aberrant muscle differentiation in RMS cells. The transcriptional regulation of MRF expression/activity takes a central role in the CRCs active in skeletal muscle and RMS. In PAX3::FOXO1 fusion-positive (PF+) RMS, CRCs maintain expression of the disease-driving fusion oncogene. Recent single-cell studies have revealed hierarchically organized subsets of cells within the RMS cell pool, which recapitulate developmental myogenesis and appear to drive malignancy. There is a large interest in exploiting the causes of aberrant muscle development in RMS to allow for terminal differentiation as a therapeutic strategy, for example, by interrupting MEK/ERK signaling or by interfering with the epigenetic machinery controlling CRCs. In this review, we provide an overview of the genetic and epigenetic framework of abnormal muscle differentiation in RMS, as it provides insights into fundamental mechanisms of RMS malignancy, its remarkable phenotypic diversity and, ultimately, opportunities for therapeutic intervention.
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Affiliation(s)
- Silvia Pomella
- Department of Hematology/Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS Istituto Ospedale Pediatrico Bambino Gesu, Viale San Paolo 15, 00146 Rome, Italy
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
| | - Sara G Danielli
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, 8032 Zürich, Switzerland
| | - Rita Alaggio
- Department of Pathology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Viale San Paolo 15, 00146 Rome, Italy
| | - Willemijn B Breunis
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, 8032 Zürich, Switzerland
| | - Ebrahem Hamed
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, University Medical Center Freiburg, University of Freiburg, 79106 Freiburg, Germany
| | - Joanna Selfe
- Sarcoma Molecular Pathology Team, Divisions of Molecular Pathology and Cancer Therapeutics, The Institute of Cancer Research, London SM2 FNG, UK
| | - Marco Wachtel
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, 8032 Zürich, Switzerland
| | - Zoe S Walters
- Translational Epigenomics Team, Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
| | - Beat W Schäfer
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, 8032 Zürich, Switzerland
| | - Rossella Rota
- Department of Hematology/Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS Istituto Ospedale Pediatrico Bambino Gesu, Viale San Paolo 15, 00146 Rome, Italy
| | - Janet M Shipley
- Sarcoma Molecular Pathology Team, Divisions of Molecular Pathology and Cancer Therapeutics, The Institute of Cancer Research, London SM2 FNG, UK
| | - Simone Hettmer
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, University Medical Center Freiburg, University of Freiburg, 79106 Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), 79104 Freiburg, Germany
- Comprehensive Cancer Centre Freiburg (CCCF), University Medical Center Freiburg, 790106 Freiburg, Germany
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27
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Pang KT, Loo LSW, Chia S, Ong FYT, Yu H, Walsh I. Insight into muscle stem cell regeneration and mechanobiology. Stem Cell Res Ther 2023; 14:129. [PMID: 37173707 PMCID: PMC10176686 DOI: 10.1186/s13287-023-03363-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Stem cells possess the unique ability to differentiate into specialized cell types. These specialized cell types can be used for regenerative medicine purposes such as cell therapy. Myosatellite cells, also known as skeletal muscle stem cells (MuSCs), play important roles in the growth, repair, and regeneration of skeletal muscle tissues. However, despite its therapeutic potential, the successful differentiation, proliferation, and expansion processes of MuSCs remain a significant challenge due to a variety of factors. For example, the growth and differentiation of MuSCs can be greatly influenced by actively replicating the MuSCs microenvironment (known as the niche) using mechanical forces. However, the molecular role of mechanobiology in MuSC growth, proliferation, and differentiation for regenerative medicine is still poorly understood. In this present review, we comprehensively summarize, compare, and critically analyze how different mechanical cues shape stem cell growth, proliferation, differentiation, and their potential role in disease development (Fig. 1). The insights developed from the mechanobiology of stem cells will also contribute to how these applications can be used for regenerative purposes using MuSCs.
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Affiliation(s)
- Kuin Tian Pang
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore.
- School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technology University, 62 Nanyang Drive, N1.2-B3, Singapore, 637459, Singapore.
| | - Larry Sai Weng Loo
- Institute of Bioengineering and Bioimaging, Agency for Science, Technology and Research, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Sean Chia
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
| | - Francesca Yi Teng Ong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hanry Yu
- Institute of Bioengineering and Bioimaging, Agency for Science, Technology and Research, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore
- CAMP, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
- Interdisplinary Science and Engineering Program, NUS Graduate School, National University of Singapore, Singapore, Singapore
| | - Ian Walsh
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore.
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28
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Luo L, Chua YJB, Liu T, Liang K, Chua MWJ, Ma W, Goh JW, Wang Y, Su J, Ho YS, Li CW, Liu KH, Teh BT, Yu K, Shyh-Chang N. Muscle Injuries Induce a Prostacyclin-PPARγ/PGC1a-FAO Spike That Boosts Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2301519. [PMID: 37140179 PMCID: PMC10375192 DOI: 10.1002/advs.202301519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/14/2023] [Indexed: 05/05/2023]
Abstract
It is well-known that muscle regeneration declines with aging, and aged muscles undergo degenerative atrophy or sarcopenia. While exercise and acute injury are both known to induce muscle regeneration, the molecular signals that help trigger muscle regeneration have remained unclear. Here, mass spectrometry imaging (MSI) is used to show that injured muscles induce a specific subset of prostanoids during regeneration, including PGG1, PGD2, and the prostacyclin PGI2. The spike in prostacyclin promotes skeletal muscle regeneration via myoblasts, and declines with aging. Mechanistically, the prostacyclin spike promotes a spike in PPARγ/PGC1a signaling, which induces a spike in fatty acid oxidation (FAO) to control myogenesis. LC-MS/MS and MSI further confirm that an early FAO spike is associated with normal regeneration, but muscle FAO became dysregulated during aging. Functional experiments demonstrate that the prostacyclin-PPARγ/PGC1a-FAO spike is necessary and sufficient to promote both young and aged muscle regeneration, and that prostacyclin can synergize with PPARγ/PGC1a-FAO signaling to restore aged muscles' regeneration and physical function. Given that the post-injury prostacyclin-PPARγ-FAO spike can be modulated pharmacologically and via post-exercise nutrition, this work has implications for how prostacyclin-PPARγ-FAO might be fine-tuned to promote regeneration and treat muscle diseases of aging.
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Affiliation(s)
- Lanfang Luo
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yan-Jiang Benjamin Chua
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore City, 119077, Singapore
- Genome Institute of Singapore, Institute of Molecular and Cell Biology, Agency for Science Technology and Research, Singapore City, 138672, Singapore
| | - Taoyan Liu
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Kun Liang
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Min-Wen Jason Chua
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore City, 119077, Singapore
- Genome Institute of Singapore, Institute of Molecular and Cell Biology, Agency for Science Technology and Research, Singapore City, 138672, Singapore
| | - Wenwu Ma
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jun-Wei Goh
- Genome Institute of Singapore, Institute of Molecular and Cell Biology, Agency for Science Technology and Research, Singapore City, 138672, Singapore
| | - Yuefan Wang
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiali Su
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ying Swan Ho
- Bioprocessing Technology Institute, Agency for Science Technology and Research, Singapore City, 138668, Singapore
| | - Chun-Wei Li
- Department of Clinical Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, P. R. China
| | - Ke Hui Liu
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Bin Tean Teh
- Laboratory of Cancer Therapeutics, Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore City, 169857, Singapore
- Division of Medical Science, Laboratory of Cancer Epigenome, National Cancer Centre Singapore, Singapore City, 119074, Singapore
| | - Kang Yu
- Department of Clinical Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, P. R. China
| | - Ng Shyh-Chang
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- Beijing Institute for Stem Cell and Regenerative Medicine, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Su Y, Gao X, Wang Y, Li X, Zhang W, Zhao J. Astragalus polysaccharide promotes sheep satellite cell differentiation by regulating miR-133a through the MAPK/ERK signaling pathway. Int J Biol Macromol 2023; 239:124351. [PMID: 37023880 DOI: 10.1016/j.ijbiomac.2023.124351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/21/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023]
Abstract
Astragalus polysaccharide (APS) possesses extensive biological activities, pharmacological effects, and anti-fatigue function. MiR-133a is a specifically expressed miRNA in skeletal muscle that participates in the regulation of myoblast proliferation and differentiation. However, little is known about the role of APS in the development of sheep skeletal muscle. In this study, we aimed to investigate the underlying mechanism of APS and miR-133a on the differentiation of sheep skeletal muscle satellite cells (SMSCs) and the regulatory relationship between APS and miR-133a. The results suggested that APS plays a positive regulatory role in the proliferation and differentiation of sheep SMSCs. Moreover, miR-133a significantly promotes SMSC differentiation and the activity of the MAPK/ERK signaling pathway. Importantly, we found that APS function requires the mediation of miR-133a in the differentiation of sheep SMSCs. Taken together, our results indicate that APS accelerates SMSC differentiation by regulating miR-133a via the MAPK/ERK signaling pathway in sheep.
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Affiliation(s)
- Yuan Su
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Xuyang Gao
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Yu Wang
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Xuying Li
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Weipeng Zhang
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Junxing Zhao
- College of Animal Sciences, Shanxi Agricultural University, Taigu 030801, PR China.
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Xue S, Lee D, Berry DC. Thermogenic adipose tissue in energy regulation and metabolic health. Front Endocrinol (Lausanne) 2023; 14:1150059. [PMID: 37020585 PMCID: PMC10067564 DOI: 10.3389/fendo.2023.1150059] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/07/2023] [Indexed: 04/07/2023] Open
Abstract
The ability to generate thermogenic fat could be a targeted therapy to thwart obesity and improve metabolic health. Brown and beige adipocytes are two types of thermogenic fat cells that regulate energy balance. Both adipocytes share common morphological, biochemical, and thermogenic properties. Yet, recent evidence suggests unique features exist between brown and beige adipocytes, such as their cellular origin and thermogenic regulatory processes. Beige adipocytes also appear highly plastic, responding to environmental stimuli and interconverting between beige and white adipocyte states. Additionally, beige adipocytes appear to be metabolically heterogenic and have substrate specificity. Nevertheless, obese and aged individuals cannot develop beige adipocytes in response to thermogenic fat-inducers, creating a key clinical hurdle to their therapeutic promise. Thus, elucidating the underlying developmental, molecular, and functional mechanisms that govern thermogenic fat cells will improve our understanding of systemic energy regulation and strive for new targeted therapies to generate thermogenic fat. This review will examine the recent advances in thermogenic fat biogenesis, molecular regulation, and the potential mechanisms for their failure.
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Affiliation(s)
| | | | - Daniel C. Berry
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States
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Kawamoto S, Hani T, Fujita K, Taya Y, Sasaki Y, Kudo T, Sato K, Soeno Y. Nuclear factor 1 X-type-associated regulation of myogenesis in developing mouse tongue. J Oral Biosci 2023; 65:88-96. [PMID: 36669698 DOI: 10.1016/j.job.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 01/19/2023]
Abstract
OBJECTIVES The tongue contains skeletal myofibers that differ from those in the trunk, limbs, and other orofacial muscles. However, the molecular basis of myogenic differentiation in the tongue muscles remains unclear. In this study, we conducted comprehensive gene expression profiling of the developing murine tongue. METHODS Tongue primordia were dissected from mouse embryos at embryonic day (E)10.5-E18.5, while myogenic markers were detected via microarray analysis and quantitative polymerase chain reaction (PCR). In addition to common myogenic regulatory factors such as Myf5, MyoD, myogenin, and Mrf4, we focused on Nfix, which acts as a unique molecular switch triggering the shift from embryonic to fetal myoblast lineage during limb myogenesis. Nfix inhibition was performed using a specific antisense oligonucleotide in the organ culture of tongue primordia. RESULTS Microarray and ingenuity pathway analyses confirmed the significant upregulation of myogenic signaling molecules, including Nfix, associated with the differentiation of myoblasts from myogenic progenitor cells during E10.5-E11.5. Quantitative PCR confirmed that Nfix expression started at E10.5 and peaked at E14.5. Fetal myoblast-specific genes, such as Mck and Myh8, were upregulated after E14.5, whereas embryonic myoblast-specific genes, such as Myh3 and Myh7, were downregulated. When Nfix was inhibited in the organ culture of tongue primordia, subtle morphological differences were noted in the tongue. Such an observation was only noted in the cultures of E10.5-derived tongue primordia. CONCLUSIONS These results reveal the contribution of Nfix to tongue myogenesis. Nfix expression during early tongue development may play a vital role in tongue muscle development.
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Affiliation(s)
- Sayaka Kawamoto
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Taisuke Hani
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Kazuya Fujita
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Yuji Taya
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Yasunori Sasaki
- Department of Dentistry, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, 232-8555, Japan.
| | - Tomoo Kudo
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Kaori Sato
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Yuuichi Soeno
- Department of Pathology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
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Is the anti-aging effect of ACE2 due to its role in the renin-angiotensin system?-Findings from a comparison of the aging phenotypes of ACE2-deficient, Tsukuba hypertensive, and Mas-deficient mice. Hypertens Res 2023; 46:1210-1220. [PMID: 36788301 PMCID: PMC9925940 DOI: 10.1038/s41440-023-01189-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 02/16/2023]
Abstract
Angiotensin converting enzyme 2 (ACE2) functions as an enzyme that produces angiotensin 1-7 (A1-7) from angiotensin II (AII) in the renin-angiotensin system (RAS). We evaluated aging phenotypes, especially skeletal muscle aging, in ACE2 systemically deficient (ACE2 KO) mice and found that ACE2 has an antiaging function. The characteristic aging phenotype observed in ACE2 KO mice was not reproduced in mice deficient in the A1-7 receptor Mas or in Tsukuba hypertensive mice, a model of chronic AII overproduction, suggesting that ACE2 has a RAS-independent antiaging function. In this review, the results we have obtained and related studies on the aging regulatory mechanism mediated by RAS components will be presented and summarized. We evaluated the aging phenotype of ACE2 systemically deficient (ACE2 KO) mice, particularly skeletal muscle aging, and found that ACE2 has an antiaging function. The characteristic aging phenotype observed in ACE2 KO mice was not reproduced in Mas KO mice, angiotensin 1-7 receptor-deficient mice or in Tsukuba hypertensive mice, a model of chronic angiotensin II overproduction, suggesting that the antiaging functions of ACE2 are independent of the renin-angiotensin system (RAS).
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Pax7 + Satellite Cells in Human Skeletal Muscle After Exercise: A Systematic Review and Meta-analysis. Sports Med 2023; 53:457-480. [PMID: 36266373 DOI: 10.1007/s40279-022-01767-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Skeletal muscle has extraordinary regenerative capabilities against challenge, mainly owing to its resident muscle stem cells, commonly identified by Pax7+, which expediently donate nuclei to the regenerating multinucleated myofibers. This local reserve of stem cells in damaged muscle tissues is replenished by undifferentiated bone marrow stem cells (CD34+) permeating into the surrounding vascular system. OBJECTIVE The purpose of the study was to provide a quantitative estimate for the changes in Pax7+ muscle stem cells (satellite cells) in humans following an acute bout of exercise until 96 h, in temporal relation to circulating CD34+ bone marrow stem cells. A subgroup analysis of age was also performed. METHODS Four databases (Web of Science, PubMed, Scopus, and BASE) were used for the literature search until February 2022. Pax7+ cells in human skeletal muscle were the primary outcome. Circulating CD34+ cells were the secondary outcome. The standardized mean difference (SMD) was calculated using a random-effects meta-analysis. Subgroup analyses were conducted to examine the influence of age, training status, type of exercise, and follow-up time after exercise. RESULTS The final search identified 20 studies for Pax7+ cells comprising a total of 370 participants between the average age of 21 and 74 years and 26 studies for circulating CD34+ bone marrow stem cells comprising 494 participants between the average age of 21 and 67 years. Only one study assessed Pax7+ cells immediately after aerobic exercise and showed a 32% reduction in exercising muscle followed by a fast repletion to pre-exercise level within 3 h. A large effect on increasing Pax7+ cell content in skeletal muscles was observed 24 h after resistance exercise (SMD = 0.89, p < 0.001). Pax7+ cells increased to ~ 50% above pre-exercise level 24-72 h after resistance exercise. For a subgroup analysis of age, a large effect (SMD = 0.81, p < 0.001) was observed on increasing Pax7+ cells in exercised muscle among adults aged > 50 years, whereas adults at younger age presented a medium effect (SMD = 0.64, p < 0.001). Both resistance exercise and aerobic exercise showed a medium overall effect in increasing circulating CD34+ cells (SMD = 0.53, p < 0.001), which declined quickly to the pre-exercise baseline level after exercise within 6 h. CONCLUSIONS An immediate depletion of Pax7+ cells in exercising skeletal muscle concurrent with a transient release of CD34+ cells suggest a replenishment of the local stem cell reserve from bone marrow. A protracted Pax7+ cell expansion in the muscle can be observed during 24-72 h after resistance exercise. This result provides a scientific basis for exercise recommendations on weekly cycles allowing for adequate recovery time. Exercise-induced Pax7+ cell expansion in muscle remains significant at higher age, despite a lower stem cell reserve after age 50 years. More studies are required to confirm whether Pax7+ cell increment can occur after aerobic exercise. CLINICAL TRIAL REGISTRATION Registered at the International Prospective Register of Systematic Reviews (PROSPERO) [identification code CRD42021265457].
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Hao Y, Xue T, Liu S, Geng S, Shi X, Qian P, He W, Zheng J, Li Y, Lou J, Shi T, Wang G, Wang X, Wang Y, Li Y, Song Y. Loss of CRY2 promotes regenerative myogenesis by enhancing PAX7 expression and satellite cell proliferation. MedComm (Beijing) 2023; 4:e202. [PMID: 36636367 PMCID: PMC9830134 DOI: 10.1002/mco2.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 01/11/2023] Open
Abstract
The regenerative capacity of skeletal muscle is dependent on satellite cells. The circadian clock regulates the maintenance and function of satellite cells. Cryptochrome 2 (CRY2) is a critical component of the circadian clock, and its role in skeletal muscle regeneration remains controversial. Using the skeletal muscle lineage and satellite cell-specific CRY2 knockout mice (CRY2scko), we show that the deletion of CRY2 enhances muscle regeneration. Single myofiber analysis revealed that deletion of CRY2 stimulates the proliferation of myoblasts. The differentiation potential of myoblasts was enhanced by the loss of CRY2 evidenced by increased expression of myosin heavy chain (MyHC) and myotube formation in CRY2-/- cells versus CRY2+/+ cells. Immunostaining revealed that the number of mononucleated paired box protein 7 (PAX7+) cells associated with myotubes formed by CRY2-/- cells was increased compared with CRY2+/+ cells, suggesting that more reserve cells were produced in the absence of CRY2. Loss of CRY2 leads to the activation of the ERK1/2 signaling pathway and ETS1, which binds to the promoter of PAX7 to induce its transcription. CRY2 deficient myoblasts survived better in ischemic muscle. Therefore, CRY2 is essential in regulating skeletal muscle repair.
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Affiliation(s)
- Yingxue Hao
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Ting Xue
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Song‐Bai Liu
- Suzhou Vocational Health College, Suzhou Key Laboratory of Biotechnology for Laboratory MedicineSuzhouJiangsuP. R. China
| | - Sha Geng
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Xinghong Shi
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Panting Qian
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Wei He
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Jiqing Zheng
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Yanfang Li
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Jing Lou
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Tianze Shi
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Ge Wang
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Xiaoxiao Wang
- Suzhou Vocational Health College, Suzhou Key Laboratory of Biotechnology for Laboratory MedicineSuzhouJiangsuP. R. China
| | - Yanli Wang
- Institutefor Cardiovascular Science and Department of Cardiovascular SurgeryFirst Affiliated Hospital and Medical College of Soochow UniversitySuzhouJiangsuP. R. China
- Collaborative Innovation Center of HematologySoochow UniversitySuzhouJiangsuP. R. China
| | - Yangxin Li
- Institutefor Cardiovascular Science and Department of Cardiovascular SurgeryFirst Affiliated Hospital and Medical College of Soochow UniversitySuzhouJiangsuP. R. China
- Collaborative Innovation Center of HematologySoochow UniversitySuzhouJiangsuP. R. China
| | - Yao‐Hua Song
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
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Kim WS, Daddam JR, Keng BH, Kim J, Kim J. Heat shock protein 27 regulates myogenic and self-renewal potential of bovine satellite cells under heat stress. J Anim Sci 2023; 101:skad303. [PMID: 37688555 PMCID: PMC10629447 DOI: 10.1093/jas/skad303] [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: 05/31/2023] [Accepted: 09/07/2023] [Indexed: 09/11/2023] Open
Abstract
While satellite cells play a key role in the hypertrophy, repair, and regeneration of skeletal muscles, their response to heat exposure remains poorly understood, particularly in beef cattle. This study aimed to investigate the changes in the transcriptome, proteome, and proliferation capability of bovine satellite cells in response to different levels of heat stress (HS) and exposure times. Satellite cells were isolated from 3-mo-old Holstein bulls (body weight: 77.10 ± 2.02 kg) and subjected to incubation under various temperature conditions: 1) control (38 °C; CON), 2) moderate (39.5 °C; MHS), and extreme (41 °C; EHS) for different durations ranging from 0 to 48 h. Following 3 h of exposure to extreme heat (EHS), satellite cells exhibited significantly increased gene expression and protein abundance of heat shock proteins (HSPs; HSP70, HSP90, HSP20) and paired box gene 7 (Pax7; P < 0.05). HSP27 expression peaked at 3 h of EHS and remained elevated until 24 h of exposure (P < 0.05). In contrast, the expression of myogenic factor 5 (Myf5) and paired box gene 3 (Pax3) was decreased by EHS compared to the control at 3 h of exposure (P < 0.05). Notably, the introduction of HSP27 small interference RNA (siRNA) transfection restored Myf5 expression to control levels, suggesting an association between HSP27 and Myf5 in regulating the self-renewal properties of satellite cells upon heat exposure. Immunoprecipitation experiments further confirmed the direct binding of HSP27 to Myf5, supporting its role as a molecular chaperone for Myf5. Protein-protein docking algorithms predicted a high probability of HSP27-Myf5 interaction as well. These findings indicate that extreme heat exposure intrinsically promotes the accumulation of HSPs and modulates the early myogenic regulatory factors in satellite cells. Moreover, HSP27 acts as a molecular chaperone by binding to Myf5, thereby regulating the division or differentiation of satellite cells in response to HS. The results of this study provide a better understanding of muscle physiology in heat-stressed cells, while unraveling the intricate molecular mechanisms that underlie the HS response in satellite cells.
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Affiliation(s)
- Won Seob Kim
- Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Jayasimha R Daddam
- Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Boon Hong Keng
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Jaehwan Kim
- Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Jongkyoo Kim
- Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
- Animal Science and Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
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Caron L, Testa S, Magdinier F. Induced Pluripotent Stem Cells for Modeling Physiological and Pathological Striated Muscle Complexity. J Neuromuscul Dis 2023; 10:761-776. [PMID: 37522215 PMCID: PMC10578229 DOI: 10.3233/jnd-230076] [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] [Accepted: 07/13/2023] [Indexed: 08/01/2023]
Abstract
Neuromuscular disorders (NMDs) are a large group of diseases associated with either alterations of skeletal muscle fibers, motor neurons or neuromuscular junctions. Most of these diseases is characterized with muscle weakness or wasting and greatly alter the life of patients. Animal models do not always recapitulate the phenotype of patients. The development of innovative and representative human preclinical models is thus strongly needed for modeling the wide diversity of NMDs, characterization of disease-associated variants, investigation of novel genes function, or the development of therapies. Over the last decade, the use of patient's derived induced pluripotent stem cells (hiPSC) has resulted in tremendous progress in biomedical research, including for NMDs. Skeletal muscle is a complex tissue with multinucleated muscle fibers supported by a dense extracellular matrix and multiple cell types including motor neurons required for the contractile activity. Major challenges need now to be tackled by the scientific community to increase maturation of muscle fibers in vitro, in particular for modeling adult-onset diseases affecting this tissue (neuromuscular disorders, cachexia, sarcopenia) and the evaluation of therapeutic strategies. In the near future, rapidly evolving bioengineering approaches applied to hiPSC will undoubtedly become highly instrumental for investigating muscle pathophysiology and the development of therapeutic strategies.
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Affiliation(s)
- Leslie Caron
- Aix-Marseille Univ-INSERM, MMG, Marseille, France
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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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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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Huang C, Dai R, Meng G, Dingkao R, Wang X, Ren W, Ma X, Wu X, Chu M, La Y, Bao P, Guo X, Pei J, Yan P, Liang C. Transcriptome-Wide Study of mRNAs and lncRNAs Modified by m 6A RNA Methylation in the Longissimus Dorsi Muscle Development of Cattle-Yak. Cells 2022; 11:cells11223654. [PMID: 36429081 PMCID: PMC9688506 DOI: 10.3390/cells11223654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 11/19/2022] Open
Abstract
Cattle-yak is a hybrid F1 generation of cattle and yak, which has a history of more than 3000 years and has shown better production performance and higher economic benefits than those of yaks. However, up to now, there has been no study on the transcriptome-wide m6A methylation profile of bovine skeletal muscle and its potential biological function during muscle development. Here, we observed significant changes in the expression levels of muscle-related marker genes and methylation-related enzymes during the development of cattle-yak, and the overall m6A content in the Longissimus dorsi muscle of 18-month-old cattle-yak decreased significantly. A total of 36,602 peaks, 11,223 genes and 8388 lncRNAs were identified in the two groups, including 2989 differential peaks (427 up-regulated peaks and 2562 down-regulated peaks), 1457 differentially expressed genes (833 up-regulated genes and 624 down-regulated genes) and 857 differentially expressed lncRNAs (293 up-regulated lncRNAs and 564 down-regulated lncRNAs). GO and KEGG analysis revealed that they were significantly enriched in some muscle-related pathways (Wnt signaling pathway and MAPK signaling pathway) and high-altitude adaptation-related pathway (HIF-1 signaling pathway). Moreover, m6A abundance was positively correlated with gene expression levels, while it was negatively correlated with lncRNA expression levels. This indicates that m6A modification played an important role in the Longissimus dorsi muscle development of cattle-yak; however, the regulation mechanism of m6A-modified mRNA and lncRNA may be different. This study was the first report of transcriptome-wide m6A-modified mRNAs and lncRNAs atlas in the Longissimus dorsi muscle development of cattle-yak, one which will provide new perspectives for genetic improvement in bovines.
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Affiliation(s)
- Chun Huang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Rongfeng Dai
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Guangyao Meng
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Renqing Dingkao
- Animal Husbandry Station of Gannan Tibetan Autonomous Prefecture, Gannan 747000, China
| | - Xingdong Wang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Wenwen Ren
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Xiaoming Ma
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Xiaoyun Wu
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Yongfu La
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Pengjia Bao
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Xian Guo
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Jie Pei
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
- Correspondence: (P.Y.); (C.L.)
| | - Chunnian Liang
- Key Laboratory of Yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
- Correspondence: (P.Y.); (C.L.)
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Koike H, Manabe I, Oishi Y. Mechanisms of cooperative cell-cell interactions in skeletal muscle regeneration. Inflamm Regen 2022; 42:48. [DOI: 10.1186/s41232-022-00234-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022] Open
Abstract
AbstractSkeletal muscles have an extraordinary capacity to regenerate themselves when injured. Skeletal muscle stem cells, called satellite cells, play a central role in muscle regeneration via three major steps: activation, proliferation, and differentiation. These steps are affected by multiple types of cells, such as immune cells, fibro-adipogenic progenitor cells, and vascular endothelial cells. The widespread use of single-cell sequencing technologies has enabled the identification of novel cell subpopulations associated with muscle regeneration and their regulatory mechanisms. This review summarizes the dynamism of the cellular community that controls and promotes muscle regeneration, with a particular focus on skeletal muscle stem cells.
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Zhu A, Liu N, Shang Y, Zhen Y, An Y. Signaling pathways of adipose stem cell-derived exosomes promoting muscle regeneration. Chin Med J (Engl) 2022; 135:2525-2534. [PMID: 36583914 PMCID: PMC9945488 DOI: 10.1097/cm9.0000000000002404] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Indexed: 12/31/2022] Open
Abstract
ABSTRACT Severe muscle injury is still a challenging clinical problem. Exosomes derived from adipose stem cells (ASC-exos) may be a potential therapeutic tool, but their mechanism is not completely clear. This review aims to elaborate the possible mechanism of ASC-exos in muscle regeneration from the perspective of signal pathways and provide guidance for further study. Literature cited in this review was acquired through PubMed using keywords or medical subject headings, including adipose stem cells, exosomes, muscle regeneration, myogenic differentiation, myogenesis, wingless/integrated (Wnt), mitogen-activated protein kinases, phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/Akt), Janus kinase/signal transducers and activators of transcription, and their combinations. We obtained the related signal pathways from proteomics analysis of ASC-exos in the literature, and identified that ASC-exos make different contributions to multiple stages of skeletal muscle regeneration by those signal pathways.
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Affiliation(s)
- Aoxuan Zhu
- Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Na Liu
- Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China
- Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yujia Shang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China
- Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yonghuan Zhen
- Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Yang An
- Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China
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Wiedner HJ, Torres EV, Blue RE, Tsai Y, Parker J, Giudice J. SET domain containing 2 (SETD2) influences metabolism and alternative splicing during myogenesis. FEBS J 2022; 289:6799-6816. [PMID: 35724320 PMCID: PMC9796740 DOI: 10.1111/febs.16553] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/13/2022] [Accepted: 06/10/2022] [Indexed: 01/14/2023]
Abstract
Epigenetic regulatory mechanisms are increasingly recognized as crucial determinants of cellular specification and differentiation. During muscle cell differentiation (myogenesis), extensive remodelling of histone acetylation and methylation occurs. Several of these histone modifications aid in the expression of muscle-specific genes and the silencing of genes that block lineage commitment. Therefore, the identification of new epigenetic regulatory mechanisms is of high interest. Still, the functional relevance of numerous histone modifications during myogenesis remain completely uncertain. In this study, we focus on the function of H3K36me3 and its epigenetic writer, SET domain containing 2 (SETD2), in the context of muscle cell differentiation. We first observed that SETD2 expression increases during myogenesis. Targeted depletion of SETD2 in undifferentiated (myoblasts) and differentiated (myotubes) muscle cells reduced H3K36me3 levels and induced profound changes in gene expression and slight alterations in alternative splicing, as determined by deep RNA-sequencing analysis. Enzymes that function in metabolic pathways were upregulated in response to SETD2 depletion. Furthermore, we demonstrated that upregulation of several glycolytic enzymes was associated with an increase in intracellular pyruvate levels in SETD2-depleted cells, indicating a novel role for SETD2 in metabolic programming during myogenesis. Together, our results provide new insight into the signalling pathways controlled by chromatin-modifying enzymes and their associated histone modifications during muscle cell differentiation.
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Affiliation(s)
- Hannah J. Wiedner
- Department of Cell Biology and PhysiologyThe University of North Carolina at Chapel HillUSA,Curriculum in Genetics and Molecular Biology (GMB)The University of North Carolina at Chapel HillUSA
| | - Eduardo V. Torres
- Department of Cell Biology and PhysiologyThe University of North Carolina at Chapel HillUSA
| | - R. Eric Blue
- Department of Cell Biology and PhysiologyThe University of North Carolina at Chapel HillUSA
| | - Yi‐Hsuan Tsai
- Lineberger Comprehensive Cancer CenterThe University of North Carolina at Chapel HillUSA
| | - Joel Parker
- Curriculum in Genetics and Molecular Biology (GMB)The University of North Carolina at Chapel HillUSA,Lineberger Comprehensive Cancer CenterThe University of North Carolina at Chapel HillUSA
| | - Jimena Giudice
- Department of Cell Biology and PhysiologyThe University of North Carolina at Chapel HillUSA,Curriculum in Genetics and Molecular Biology (GMB)The University of North Carolina at Chapel HillUSA,McAllister Heart Institute, School of MedicineThe University of North Carolina at Chapel HillUSA
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Sénéchal C, Fujita R, Jamet S, Maiga A, Dort J, Orfi Z, Dumont NA, Bouvier M, Crist C. The adhesion G-protein-coupled receptor Gpr116 is essential to maintain the skeletal muscle stem cell pool. Cell Rep 2022; 41:111645. [DOI: 10.1016/j.celrep.2022.111645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 08/26/2022] [Accepted: 10/19/2022] [Indexed: 11/18/2022] Open
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Azhar M, Wardhani BWK, Renesteen E. The regenerative potential of Pax3/Pax7 on skeletal muscle injury. J Genet Eng Biotechnol 2022; 20:143. [PMID: 36251225 PMCID: PMC9574840 DOI: 10.1186/s43141-022-00429-x] [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: 03/16/2022] [Accepted: 10/08/2022] [Indexed: 11/30/2022]
Abstract
Background
Skeletal muscle mishaps are the most well-known incidents in society, especially among athletes and the military population. From the various urgency, this accident needs to be cured more quickly. However, the current treatment still has some shortcomings and is less effective. In this case, Paired box 3 and Paired box 7 (Pax3/Pax7) proteins that induce stem cells could potentially be an alternative treatment for skeletal muscle injuries. This paper aimed to analyse the potential treatment of Pax3/Pax7 proteins inducing the stem cell for skeletal muscle injuries. The main body of the abstract We did a narrative review by gathering several scientific journals from several leading platforms like PubMed and Scopus. As common accidents, skeletal muscle disease could be due to workplace and non-workplace causes. The highest risk occurs in the athlete and military environment. The treatment of current skeletal muscle injuries is protection, rest, ice, compression, and elevation (PRICE), non-steroidal anti-inflammatory drugs (NSAIDs), and mechanical stimulation. However, it is considered less effective, especially in NSAIDs, inhibiting myogenic cell proliferation. The current finding indicates that the stem cells have markers known as Pax3/Pax7. The role of both markers in muscle injury, Pax3/Pax7, as transcription factors will induce cell division by H3K4 methylation mechanisms and chromatin modifications that stimulate gene activation. Conclusion Regulation by Pax3/Pax7 factors that affect stem cells and stem cell proliferation is one of the alternative treatments. This regulation can accelerate the healing of injury victims, especially injuries to the skeletal muscles. Finally, after being compared, Pax3/Pax7 induces stem cells to have the potential to be one of the skeletal muscle injury treatments. Keywords Pax3 and Pax7, Pax3/Pax7, Skeletal muscle, Athlete, Stem cells, Cell proliferation, Injuries.
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Affiliation(s)
- Muhamad Azhar
- Faculty of Military Pharmacy, The Republic of Indonesia Defense University, Bogor, 16810, West Java, Indonesia
| | | | - Editha Renesteen
- Faculty of Military Pharmacy, The Republic of Indonesia Defense University, Bogor, 16810, West Java, Indonesia.
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Zhang Z, Lin S, Luo W, Ren T, Huang X, Li W, Zhang X. Sox6 Differentially Regulates Inherited Myogenic Abilities and Muscle Fiber Types of Satellite Cells Derived from Fast- and Slow-Type Muscles. Int J Mol Sci 2022; 23:ijms231911327. [PMID: 36232654 PMCID: PMC9569562 DOI: 10.3390/ijms231911327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/11/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Adult skeletal muscle is primarily divided into fast and slow-type muscles, which have distinct capacities for regeneration, metabolism and contractibility. Satellite cells plays an important role in adult skeletal muscle. However, the underlying mechanisms of satellite cell myogenesis are poorly understood. We previously found that Sox6 was highly expressed in adult fast-type muscle. Therefore, we aimed to validate the satellite cell myogenesis from different muscle fiber types and investigate the regulation of Sox6 on satellite cell myogenesis. First, we isolated satellite cells from fast- and slow-type muscles individually. We found that satellite cells derived from different muscle fiber types generated myotubes similar to their origin types. Further, we observed that cells derived from fast muscles had a higher efficiency to proliferate but lower potential to self-renew compared to the cells derived from slow muscles. Then we demonstrated that Sox6 facilitated the development of satellite cells-derived myotubes toward their inherent muscle fiber types. We revealed that higher expression of Nfix during the differentiation of fast-type muscle-derived myogenic cells inhibited the transcription of slow-type isoforms (MyH7B, Tnnc1) by binding to Sox6. On the other hand, Sox6 activated Mef2C to promote the slow fiber formation in slow-type muscle-derived myogenic cells with Nfix low expression, showing a different effect of Sox6 on the regulation of satellite cell development. Our findings demonstrated that satellite cells, the myogenic progenitor cells, tend to develop towards the fiber type similar to where they originated. The expression of Sox6 and Nfix partially explain the developmental differences of myogenic cells derived from fast- and slow-type muscles.
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Affiliation(s)
- Zihao Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Shudai Lin
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524000, China
| | - Wen Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
- Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Tuanhui Ren
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xing Huang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Wangyu Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
- Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
- Correspondence:
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Potential Satellite Cell-Linked Biomarkers in Aging Skeletal Muscle Tissue: Proteomics and Proteogenomics to Monitor Sarcopenia. Proteomes 2022; 10:proteomes10030029. [PMID: 35997441 PMCID: PMC9396989 DOI: 10.3390/proteomes10030029] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/28/2022] [Accepted: 08/10/2022] [Indexed: 12/21/2022] Open
Abstract
Sarcopenia (Sp) is the loss of skeletal muscle mass associated with aging which causes an involution of muscle function and strength. Satellite cells (Sc) are myogenic stem cells, which are activated by injury or stress, and repair muscle tissue. With advancing age, there is a decrease in the efficiency of the regenerative response of Sc. Diagnosis occurs with the Sp established by direct assessments of muscle. However, the detection of biomarkers in real-time biofluids by liquid biopsy could represent a step-change in the understanding of the molecular biology and heterogeneity of Sp. A total of 13 potential proteogenomic biomarkers of Sp by their physiological and biological interaction with Sc have been previously described in the literature. Increases in the expression of GDF11, PGC-1α, Sirt1, Pax7, Pax3, Myf5, MyoD, CD34, MyoG, and activation of Notch signaling stimulate Sc activity and proliferation, which could modulate and delay Sp progression. On the contrary, intensified expression of GDF8, p16INK4a, Mrf4, and activation of the Wnt pathway would contribute to early Sp development by directly inducing reduced and/or altered Sc function, which would attenuate the restorative capacity of skeletal muscle. Additionally, tissue biopsy remains an important diagnostic tool. Proteomic profiling of aged muscle tissues has shown shifts toward protein isoforms characteristic of a fast-to-slow transition process and an elevated number of oxidized proteins. In addition, a strong association between age and plasma values of growth differentiation factor 15 (GDF-15) has been described and serpin family A member 3 (serpin A3n) was more secreted by atrophied muscle cells. The identification of these new biomarkers holds the potential to change personalized medicine because it could predict in real time the course of Sp by monitoring its evolution and assessing responses to potential therapeutic strategies.
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Ramadan F, Saab R, Hussein N, Clézardin P, Cohen PA, Ghayad SE. Non-coding RNA in rhabdomyosarcoma progression and metastasis. Front Oncol 2022; 12:971174. [PMID: 36033507 PMCID: PMC9403786 DOI: 10.3389/fonc.2022.971174] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 07/25/2022] [Indexed: 12/12/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is a soft tissue sarcoma of skeletal muscle differentiation, with a predominant occurrence in children and adolescents. One of the major challenges facing treatment success is the presence of metastatic disease at the time of diagnosis, commonly associated with the more aggressive fusion-positive subtype. Non-coding RNA (ncRNA) can regulate gene transcription and translation, and their dysregulation has been associated with cancer development and progression. MicroRNA (miRNA) are short non-coding nucleic acid sequences involved in the regulation of gene expression that act by targeting messenger RNA (mRNA), and their aberrant expression has been associated with both RMS initiation and progression. Other ncRNA including long non-coding RNA (lncRNA), circular RNA (circRNA) and ribosomal RNA (rRNA) have also been associated with RMS revealing important mechanistic roles in RMS biology, but these studies are still limited and require further investigation. In this review, we discuss the established roles of ncRNA in RMS differentiation, growth and progression, highlighting their potential use in RMS prognosis, as therapeutic agents or as targets of treatment.
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Affiliation(s)
- Farah Ramadan
- Department of Biology, Faculty of Science II, Lebanese University, Beirut, Lebanon
- Université Claude Bernard Lyon 1, Lyon, France
- INSERM, Unit 1033, LYOS, Lyon, France
- Department of Chemistry and Biochemistry, Laboratory of Cancer Biology and Molecular Immunology, Faculty of Science I, Lebanese University, Hadat, Lebanon
| | - Raya Saab
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Department of Pediatric and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Nader Hussein
- Department of Chemistry and Biochemistry, Laboratory of Cancer Biology and Molecular Immunology, Faculty of Science I, Lebanese University, Hadat, Lebanon
| | - Philippe Clézardin
- Université Claude Bernard Lyon 1, Lyon, France
- INSERM, Unit 1033, LYOS, Lyon, France
| | - Pascale A. Cohen
- Université Claude Bernard Lyon 1, Lyon, France
- INSERM, Unit 1033, LYOS, Lyon, France
| | - Sandra E. Ghayad
- Department of Biology, Faculty of Science II, Lebanese University, Beirut, Lebanon
- Aix-Marseille University, INSERM 1263, INRAE 1260, C2VN, Marseille, France
- *Correspondence: Sandra E. Ghayad,
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Lu A, Tseng C, Guo P, Gao Z, Whitney KE, Kolonin MG, Huard J. The role of the aging microenvironment on the fate of PDGFRβ lineage cells in skeletal muscle repair. Stem Cell Res Ther 2022; 13:405. [PMID: 35932084 PMCID: PMC9356493 DOI: 10.1186/s13287-022-03072-y] [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: 05/18/2022] [Accepted: 07/20/2022] [Indexed: 11/20/2022] Open
Abstract
Background During aging, perturbation of muscle progenitor cell (MPC) constituents leads to progressive loss of muscle mass and accumulation of adipose and fibrotic tissue. Mesenchymal stem cells (MSCs) give rise to adipocytes and fibroblasts that accumulate in injured and pathological skeletal muscle through constitutive activation of platelet-derived growth factor receptors (PDGFRs). Although the role of the PDGFRα has been widely explored, there is a paucity of evidence demonstrating the role of PDGFRβ in aged skeletal muscle. Methods In this study, we investigated the role of PDGFRβ lineage cells in skeletal muscle during aging by using Cre/loxP lineage tracing technology. The PDGFR-Cre mice were crossed with global double-fluorescent Cre reporter mice (mTmG) that indelibly marks PDGFRβ lineage cells. Those cells were analyzed and compared at different ages in the skeletal muscle of the mice. Results Our results demonstrated that PDGFRβ lineage cells isolated from the muscles of young mice are MPC-like cells that exhibited satellite cell morphology, expressed Pax7, and undergo myogenic differentiation producing myosin heavy chain expressing myotubes. Conversely, the PDGFRβ lineage cells isolated from muscles of old mice displayed MSC morphology with a reduced myogenic differentiation potential while expressing adipogenic and fibrotic differentiation markers. PDGFRβ lineage cells also gave rise to newly regenerated muscle fibers in young mice after muscle injury, but their muscle regenerative process is reduced in old mice. Conclusions Our data suggest that PDGFRβ lineage cells function as MPCs in young mice, while the same PDGFRβ lineage cells from old mice undergo a fate switch participating in adipose and fibrotic tissue infiltration in aged muscle. The inhibition of fate-switching in PDGFRβ lineage cells may represent a potential approach to prevent fibrosis and fatty infiltration in skeletal muscle during the aging process.
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Affiliation(s)
- Aiping Lu
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA.
| | - Chieh Tseng
- M.D. Anderson Cancer Center, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Ping Guo
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA
| | - Zhanguo Gao
- Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Kaitlyn E Whitney
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA
| | - Mikhail G Kolonin
- Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, 77030, USA
| | - Johnny Huard
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, 181 West Meadow Drive, Suite 1000, Vail, CO, 81657, USA.
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49
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Unique Features of River Lamprey (Lampetra fluviatilis) Myogenesis. Int J Mol Sci 2022; 23:ijms23158595. [PMID: 35955736 PMCID: PMC9368804 DOI: 10.3390/ijms23158595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 02/04/2023] Open
Abstract
The river lamprey (L. fluviatilis) is a representative of the ancestral jawless vertebrate group. We performed a histological analysis of trunk muscle fiber differentiation during embryonal, larval, and adult musculature development in this previously unstudied species. Investigation using light, transmission electron (TEM), and confocal microscopy revealed that embryonal and larval musculature differs from adult muscle mass. Here, we present the morphological analysis of L. fluviatilis myogenesis, from unsegmented mesoderm through somite formation, and their differentiation into multinucleated muscle lamellae. Our analysis also revealed the presence of myogenic factors LfPax3/7 and Myf5 in the dermomyotome. In the next stages of development, two types of muscle lamellae can be distinguished: central surrounded by parietal. This pattern is maintained until adulthood, when parietal muscle fibers surround the central muscles on both sides. The two types show different morphological characteristics. Although lampreys are phylogenetically distant from jawed vertebrates, somite morphology, especially dermomyotome function, shows similarity. Here we demonstrate that somitogenesis is a conservative process among all vertebrates. We conclude that river lamprey myogenesis shares features with both ancestral and higher vertebrates.
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50
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From cyclins to CDKIs: Cell cycle regulation of skeletal muscle stem cell quiescence and activation. Exp Cell Res 2022; 420:113275. [PMID: 35931143 DOI: 10.1016/j.yexcr.2022.113275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 06/12/2022] [Accepted: 07/03/2022] [Indexed: 11/22/2022]
Abstract
After extensive proliferation during development, the adult skeletal muscle cells remain outside the cell cycle, either as post-mitotic myofibers or as quiescent muscle stem cells (MuSCs). Despite its terminally differentiated state, adult skeletal muscle has a remarkable regeneration potential, driven by MuSCs. Upon injury, MuSC quiescence is reversed to support tissue growth and repair and it is re-established after the completion of muscle regeneration. The distinct cell cycle states and transitions observed in the different myogenic populations are orchestrated by elements of the cell cycle machinery. This consists of i) complexes of cyclins and Cyclin-Dependent Kinases (CDKs) that ensure cell cycle progression and ii) their negative regulators, the Cyclin-Dependent Kinase Inhibitors (CDKIs). In this review we discuss the roles of these factors in developmental and adult myogenesis, with a focus on CDKIs that have emerging roles in stem cell functions.
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