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Muscle stem cells (MuSCs) are the key to muscle regeneration. The activation and maintenance of MuSCs require the precise regulation of their microenvironments. Myofibers and other cells including endothelial cells, fibroblasts, and immune cell populations constitute the cell components of the MuSC niche. The communication between these cell populations and MuSCs play an essential role in muscle repair. Furthermore, the physical and chemical stimulations around MuSCs also affect the cell behaviors of MuSCs. Extracellular matrix (ECM) and the factors stored in it generate a repair-promoting niche for efficient muscle regeneration. Understanding the mechanism of muscle stem cell regulation is the basis of clinically optimizing muscle repair. In this review, we discuss recent findings about the microenvironments of MuSCs and their functions in muscle regeneration, which would shed light on new targets and strategies for muscle injury treatment.
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http://dx.doi.org/10.3390/biom15060765 | DOI Listing |
J Mol Histol
September 2025
Department of Urology, Yantai Yuhuangding Hospital, Qingdao University, No. 20 East Yuhuangding Road, Yantai, 264000, Shandong, China.
The stress urinary incontinence (SUI) is a difficulty in urology and current sub-urethral sling treatments are associated with inflamation and recurrence. In this study, we developed a novel tissue-engineered sling with myogenic induced adiposederived stem cells (MI-ADSCs) sheets induced by 5-Aza and combined with electrospun scaffolds of silk fibroin and poly(lactide-co-glycolide) (SF/PLGA) for the treatment of stress urinary incontinence. MI-ADSCs increased α-SMA, MyoD and Desmin the mRNA and protein expression.
View Article and Find Full Text PDFBiomed Pharmacother
September 2025
Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. Electronic address:
Immune-mediated necrotizing myopathy (IMNM) is an emerging and severe form of myositis. Most patients experience persistent muscle weakness or recurrent attacks within their lifetime. The previous view suggests that autoimmune and complement activation play a key role in muscle damage, and aggressive immunotherapy may benefit patients.
View Article and Find Full Text PDFDev Biol
September 2025
Department of Molecular Biosciences, Northwestern University, Evanston IL 60208; Robert Lurie Comprehensive Cancer Center, Northwestern University, Evanston IL 60208. Electronic address:
The activation of progenitor cells near wound sites is a common feature of regeneration across species, but the conserved signaling mechanisms responsible for this step in whole-body regeneration are still incompletely understood. The acoel Hofstenia miamia undergoes whole-body regeneration using Piwi+ pluripotent adult stem cells (neoblasts) that accumulate at amputation sites early in regeneration. The EGFR signaling pathway has broad roles in controlling proliferation, migration, differentiation, and cell survival across metazoans.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan.
In adult mammals and other highly developed animals, incomplete wound healing, scar formation, and fibrosis occur. No treatment for complete tissue regeneration is currently available. However, in mice, at up to 13 days of gestation, early embryonic wounds regenerate without visible scarring.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2025
Department of Bioengineering, Yildiz Technical University, Istanbul, 34722, Turkey.
Conductive nanocomposite hydrogels (CNHs) represent a promising tool in neural tissue engineering, offering tailored electroactive microenvironments to address the complex challenges of neural repair. This systematic scoping review, conducted in accordance with PRISMA-ScR guidelines, synthesizes recent advancements in CNH design, functionality, and therapeutic efficacy for central and peripheral nervous system (CNS and PNS) applications. The analysis of 125 studies reveals a growing emphasis on multifunctional materials, with carbon-based nanomaterials (CNTs, graphene derivatives; 36.
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