The goal of our study was to compare the skeletal muscle regeneration induced by two types of injury: either crushing, that causes muscle degeneration as a result of mechanical devastation of myofibers, or the injection of a cardiotoxin that is a myotoxic agent causing myolysis of myofibers leading to muscle degeneration. Regenerating muscles were analyzed at selected intervals, until the 14th day following the injury. We analyzed their weight and morphology. We also studied the expression of different myosin heavy chain isoforms as a molecular marker of the regeneration progress. Histological analysis revealed that inflammatory response and myotube formation in crushed muscles was delayed compared to cardiotoxin-injected ones. Moreover, the expression of myosin heavy chain isoforms was observed earlier in cardiotoxin-injured versus crushed muscles. We conclude that the dynamics of skeletal muscle regeneration depends on the method of injury.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2478/18710 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tokay gecko tail regeneration involves temporally collinear expression of HOXC genes and early expression of satellite cell markers.
BMC Biol
January 2025
Institute of Biology Leiden, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE, Leiden, The Netherlands.
Background: Regeneration is the replacement of lost or damaged tissue with a functional copy. In axolotls and zebrafish, regeneration involves stem cells produced by de-differentiation. These cells form a growth zone which expresses developmental patterning genes at its apex.
View Article and Find Full Text PDFGallbladder-derived retinoic acid signalling drives reconstruction of the damaged intrahepatic biliary ducts.
Nat Cell Biol
January 2025
State Key laboratory of Genetic Engineering, School of Life Sciences, Liver Cancer Institute of Zhongshan Hospital, Fudan University, Shanghai, China.
Severe damage to the intrahepatic biliary duct (IHBD) network occurs in multiple human advanced cholangiopathies, such as primary sclerosing cholangitis, biliary atresia and end-stage primary biliary cholangitis. Whether and how a severely damaged IHBD network could reconstruct has remained unclear. Here we show that, although the gallbladder is not directly connected to the IHBD, there is a common hepatic duct (CHD) in between, and severe damage to the IHBD network induces migration of gallbladder smooth muscle cells (SMCs) to coat the CHD in mouse and zebrafish models.
View Article and Find Full Text PDFMETTL3-mediated mA modification regulates muscle development by promoting TM4SF1 mRNA degradation in P-body via YTHDF2.
Int J Biol Macromol
January 2025
College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China. Electronic address:
N6-methyladenosine (mA), a well-known post-transcriptional modification, is implicated in diverse cellular and physiological processes. However, much remains unknown regarding the precise role and mechanism of mA modification on muscle development. In this study, we make observation that the levels of mA and METTL3 are markedly elevated during the differentiation phase (DM) compared to the growth phase (GM) in both C2C12 and bovine myoblasts.
View Article and Find Full Text PDFHEPATOCYTE GROWTH FACTOR FOR WALKING PERFORMANCE IN PERIPHERAL ARTERY DISEASE.
J Vasc Surg
January 2025
University of Virginia Health, Department of Surgery, Charlottesville, VA.
Introduction: VM202 is a plasmid encoding two isoforms of hepatocyte growth factor (HGF). In preclinical studies, HGF stimulated angiogenesis and muscle regeneration. This preliminary clinical trial tested the hypothesis that VM202 injections in gastrocnemius muscle would improve walking performance in people with mild to moderate and symptomatic lower extremity peripheral artery disease (PAD).
View Article and Find Full Text PDFGenetically Engineered Hypoimmune Human Muscle Progenitor Cells Can Reduce Immune Rejection.
Cell Prolif
January 2025
Key Laboratory of Organ Regeneration and Reconstruction, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Cells face two challenges after transplantation: recognition and killing by lymphocytes, and cell apoptosis induced by the transplantation environment. Our hypoimmune cells aim to address these two challenges through editing of immunomodulatory proteins and overexpression of anti-apoptotic proteins.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!