• C2C12 cells, primary myoblasts and myotubes. (sun.ac.za)
  • Muscle fibers generally form through the fusion of precursor myoblasts into multinucleated fibers called myotubes. (wikipedia.org)
  • If placed in cell culture, most myoblasts will proliferate if enough fibroblast growth factor (FGF) or another growth factor is present in the medium surrounding the cells. (wikipedia.org)
  • These findings imply a novel and unexpected role for p38 MAPK inhibition in myogenesis and highlight the importance of the limb bud microenvironment in promoting the progression of limb myoblasts. (biologists.com)
  • Skeletal muscle progenitors (satellite cells), murine cell line and immortalized human myoblasts are studied in vitro to identify, in a controlled environment, the pathways regulating the regenerative potential of the skeletal muscle. (units.it)
  • These monocyte myoblasts proliferate and differentiate, following which, they fuse with existing muscle fibers to form multinucleated myotubes and myofibers. (kosfaj.org)
  • Extremely Low-Frequency Electromagnetic Fields Affect Myogenic Processes in C2C12 Myoblasts: Role of Gap-Junction-Mediated Intercellular Communication [med. (emf-portal.org)
  • We also demonstrate that the transcriptional regulator PRDM16 (PRD1-BF1-RIZ1 homologous domain containing 16) controls a bidirectional cell fate switch between skeletal myoblasts and brown fat cells. (bioseek.eu)
  • Conversely, ectopic expression of PRDM16 in myoblasts induces their differentiation into brown fat cells. (bioseek.eu)
  • Skeletal muscle regeneration is regulated by coordinated activation of multiple signaling pathways. (elifesciences.org)
  • However, the role of individual arms of the UPR in skeletal muscle regeneration remain less understood. (elifesciences.org)
  • Myofiber-specific ablation of IRE1α or XBP1 in mice diminishes skeletal muscle regeneration that is accompanied with reduced number of satellite cells. (elifesciences.org)
  • Finally, targeted ablation of IRE1α also reduces Notch signaling, abundance of satellite cells, and skeletal muscle regeneration in the mdx mice, a model of Duchenne muscular dystrophy. (elifesciences.org)
  • Collectively, our experiments suggest that the IRE1α-mediated signaling promotes muscle regeneration through augmenting the proliferation of satellite cells in a cell non-autonomous manner. (elifesciences.org)
  • The findings shed new light on mechanisms of regeneration of healthy myofibers after severe tissue injury and suggest interplay between these fibers and muscle satellite cells though mechanisms remain to be elucidated. (elifesciences.org)
  • However, the mechanisms of muscle regeneration are not yet fully understood. (elifesciences.org)
  • In this study, we investigate the effects of neural cell integration into the bioprinted skeletal muscle construct to accelerate functional muscle regeneration in vivo. (nature.com)
  • 20% of the original mass invariably results in functional impairment with limited regeneration capacity, which requires reconstructive surgical procedures such as autologous muscle flap transfers 1 . (nature.com)
  • In particular, her work has been focusing on the molecular mechanisms involved in the modulation of the peripheral synaptic transmission, skeletal muscle adaptation and regeneration in physiological and pathological conditions. (units.it)
  • The research activity of the group is focused on the identification of new strategies to improve skeletal muscle regeneration. (units.it)
  • Low-intensity pulsed ultrasound (LIPUS, a form of mechanical stimulation) can promote skeletal muscle functional repair, but a lack of mechanistic understanding of its relationship and tissue regeneration limits progress in this field. (ijbs.com)
  • We investigated the hypothesis that specific energy levels of LIPUS mediates skeletal muscle regeneration by modulating the inflammatory microenvironment. (ijbs.com)
  • LIPUS at intensity of 60mW/cm 2 could significantly promoted skeletal muscle regeneration through shifting macrophage phenotype from M1 to M2. (ijbs.com)
  • Macrophages later arrive at the tissue to remove cellular debris, and satellite cells (SCs) are activated and proliferate to induce myofiber regeneration. (biomedcentral.com)
  • Therefore, promotion of myoblast proliferation and differentiation and induction of myotube hypertrophy should be beneficial for muscle regeneration and control of muscle mass. (kosfaj.org)
  • Defective muscle regeneration can severely affect re-innervation by motor axons, and neuromuscular junctions (NMJs) development, ultimately leading to skeletal muscle atrophy. (biomed.news)
  • 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. (biomed.news)
  • 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. (biomed.news)
  • PAX3 mediates the transcription of c-Met and is responsible for the activation of MyoD expression-one of the functions of MyoD is to promote the regenerative ability of satellite cells (described below). (wikipedia.org)
  • If Myf-5 and MyoD are both inactivated, there will be a complete absence of skeletal muscle. (wikipedia.org)
  • Regulation of skeletal myogenesis in C2C12 cells through modulation of Pax7, MyoD, and myogenin via different low-frequency electromagnetic field energies [med. (emf-portal.org)
  • The effect of deer antler extract on muscle differentiation and muscle atrophy were evaluated to minimize muscle loss following aging. (kosfaj.org)
  • In addition, the expression levels of genes related to muscle differentiation and atrophy were confirmed through qRT-PCR. (kosfaj.org)
  • Gene expression of AMP-activated protein kinase (AMPK), MyoD1, and myogenin, along with the muscle atrophy factors muscle RING finger-1 (MuRF-1) and forkhead box O3a (FoxO3a) upon addition of deer antler extracts to muscle-atrophied C2C12 cells was determined by qRT-PCR after treatment with AICAR. (kosfaj.org)
  • In addition, gene expression of MyoD1 and myogenin in the muscle atrophy cell model was significantly increased compared that into the CON. (kosfaj.org)
  • Therefore, our findings indicate that antler extract can increase the expression of MyoD1, Myf5 and myogenin, inhibit muscle atrophy, and promote muscle differentiation. (kosfaj.org)
  • Muscle atrophy with aging is accompanied by muscle damage caused by oxidative damage and malnutrition caused by lack of muscle metabolism. (kosfaj.org)
  • We previously showed that bioprinted human skeletal muscle constructs were able to form multi-layered bundles with aligned myofibers. (nature.com)
  • We also demonstrated the feasibility of using these 3D bioprinted human skeletal muscle constructs to treat critical-sized muscle defect injuries with structural and functional restoration in a rodent model 2 . (nature.com)
  • Impairing the function of Mox2 will prevent the proliferation of myogenic precursors and will cause abnormal patterning of limb muscles. (wikipedia.org)
  • Nonetheless, the enhanced myogenesis leads to the formation of an extensive network of contractile myofibers, and this enhanced myogenesis can be conferred upon myogenic cells from clonal populations, such as G8 or C2C12 cells, if they are co-cultured with the limb mesenchymal cells. (biologists.com)
  • The pro-angiogenic approaches also seem to be pro-myogenic and could resolve the age-related decline in satellite cell (SC) quantity seen in mdx models through expansion of the SC juxtavascular niche. (biomedcentral.com)
  • Quantifying the exact expression levels of the mRNA isoforms encoding these myogenic transcription factors is therefore key to understanding how MuSCs switch between cell states. (biomed.news)
  • We demonstrate that mdPCR can give exact molecule counts per cell for mRNA isoforms encoding the myogenic transcription factor Pax3. (biomed.news)
  • Here we show by in vivo fate mapping that brown, but not white, fat cells arise from precursors that express Myf5, a gene previously thought to be expressed only in the myogenic lineage. (bioseek.eu)
  • The expression level of the SFRP1 was highly varied across numerous pig tissues and it was down-regulated during porcine skeletal muscle development. (biomedcentral.com)
  • Also, a vascularization strategy using co-culture with endothelial cells (ECs) and fibroblasts improved the survival of the bioengineered skeletal muscle tissues 20 , 21 . (nature.com)
  • Skeletal muscle regenerative capacity later diminishes with advancing age and decreasing numbers of SCs, and muscle tissue is steadily replaced by adipose and connective tissues[ 13 ]. (biomedcentral.com)
  • 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. (biomed.news)
  • The epidemic of obesity, closely associated with increases in diabetes, hypertension, hyperlipidemia, cancer and other disorders, has propelled a major interest in adipose cells and tissues. (bioseek.eu)
  • Adipose tissues contain two distinct types of fat cells, white and brown. (bioseek.eu)
  • MSCs can be isolated from a range of tissues, but the most commonly cited sources are bone marrow (BM), adipose tissue, muscle, bone, and perinatal tissues (e.g. (biomedcentral.com)
  • A central aspect is then the ability to optimize the functional properties with high spatial resolution, creating materials that are able to control the interaction with the biological surrounding at the nanoscale thus guiding the responses of biomolecules, cells and tissues. (european-mrs.com)
  • The Wnt signaling pathway is involved in the control of cell proliferation and differentiation during skeletal muscle development. (biomedcentral.com)
  • IL-2/IL2R also promotes the differentiation of T cells into effector T cells. (ilreceptor.com)
  • Morphological changes according to the effect of antler extracts on muscle differentiation were confirmed by Jenner-Giemsa staining. (kosfaj.org)
  • Loss of PRDM16 from brown fat precursors causes a loss of brown fat characteristics and promotes muscle differentiation. (bioseek.eu)
  • MSCs can be defined by their ability to adhere to tissue culture plastic, their expression of several cell surface molecular epitopes-cluster of differentiation CD73, CD90, and CD105, and others-as well as their lack of several surface markers, including CD45 [ 6 ]. (biomedcentral.com)
  • While acknowledging progress in the other areas mentioned, this work will focus on the current debates concerning sourcing, MSC alterations of angiogenesis, cell differentiation/stimulation, and strategies to improve MSC differentiation. (biomedcentral.com)
  • Skeletal muscle, the most abundant tissue of the body, has remarkable regenerative capacity mainly due to its resident muscle stem cells, also known as satellite cells. (elifesciences.org)
  • These cells are regulated by a tight control of transcriptional programs. (biomed.news)
  • Recent mechanistic insights into the trophic activities of these cells point to ultimate regulation by nitric oxide, nuclear factor-kB, and indoleamine, among other signaling pathways. (biomedcentral.com)
  • In this project, the group intends to investigate the nature and the role of adenosine and AR signalling pathways on the two isoforms of muscle AChRs: the embryonic (g-AChR) regulating synaptogenesis and muscle development and the adult (e-AChR) with a role in nerve-muscle communication. (units.it)
  • Here we show that, concurrent with a decrease in chondrogenesis, inhibition of p38 in limb bud cultures dramatically promotes muscle development. (biologists.com)
  • General, Hep3B cells appeared to be more sensitive towards the DACi mediated inhibition of DNA methylation as shown by a significant and robust reduction of methylated APC after only six h. (ilreceptor.com)
  • LBX1 is responsible for the development and organization of muscles in the dorsal forelimb as well as the movement of dorsal muscles into the limb following delamination. (wikipedia.org)
  • A lack of c-Met disrupts secondary myogenesis and-as in LBX1-prevents the formation of limb musculature. (wikipedia.org)
  • Significant loss of muscle mass may occur in cachexia and sarcopenia, which are major causes of mortality and disability. (mdpi.com)
  • With ageing, skeletal muscle undergoes a severe reduction in tissue mass, leading to a decrease in strength (sarcopenia). (units.it)
  • 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. (biomed.news)
  • In addition, cytokines released in the process of myonecrosis recruit inflammatory cells, which release inflammatory cytokines to activate fibroblasts that lay down extracellular matrix proteins and lead to fibrosis[ 12 ]. (biomedcentral.com)
  • Myofiber-specific ablation of IRE1α dampens Notch signaling and canonical NF-κB pathway in skeletal muscle of adult mice. (elifesciences.org)
  • Adult stem cells play key roles in homeostasis and tissue repair. (biomed.news)
  • Adult mesenchymal stem cells (MSCs) represent a subject of intense experimental and biomedical interest. (biomedcentral.com)
  • In more detail, the team is studying the role of electrical activity and local trophic factors in the microenvironment of satellite cell niche and in the post-mitotic myogenesis. (units.it)
  • The response of target cells is further regulated by their microenvironment, involving the extracellular matrix, which may be modified by MSC-produced matrix metalloproteinases (MMPs) and tissue inhibitor of MMPs. (biomedcentral.com)
  • Enhancing Myoblast Fusion and Myotube Diameter in Human 3D Skeletal Muscle Constructs by Electromagnetic Stimulation [med. (emf-portal.org)
  • The use of a muscle creatine kinase germline knockout of the gene encoding Ire1/Ern1 shifts the focus from traditional studies of tissue repair toward the regenerating myofibers. (elifesciences.org)
  • Myogenesis is the formation of skeletal muscular tissue, particularly during embryonic development. (wikipedia.org)
  • The expression level of the SFRP1 was significantly higher in the embryonic skeletal compared with postnatal skeletal muscle, whereas miR-206 showed the inverse pattern of expression. (biomedcentral.com)
  • Duchenne muscular dystrophy (DMD) is the most common muscular dystrophy and an X-linked recessive, progressive muscle wasting disease caused by the absence of a functional dystrophin protein. (biomedcentral.com)
  • The past two decades has seen major advances towards our current understanding of skeletal myogenesis (reviewed in Perry and Rudnicki, 2000 ). (biologists.com)
  • The first stage, involves cell cycle exit and the commencement of expression of certain genes. (wikipedia.org)
  • Serum response factor (SRF) plays a central role during myogenesis, being required for the expression of striated alpha-actin genes. (wikipedia.org)
  • Finally, Prdm16-deficient brown fat displays an abnormal morphology, reduced thermogenic gene expression and elevated expression of muscle-specific genes. (bioseek.eu)
  • Several types of adenosine receptors have been detected in developing and differentiated skeletal muscle cells, but little is known about the functional outcome of AR modulation on muscle AChRs. (units.it)
  • The results of the proposed research will advance the understanding of important aspects of the neuromuscular physiology such as the modulation of the neuromuscular transmission and the skeletal muscle plasticity. (units.it)
  • details] Modulation of redox status and calcium handling by extremely low frequency electromagnetic fields in C2C12 muscle cells: A real-time, single-cell approach [med. (emf-portal.org)
  • in these cells physiological lev els of E2 and low levels of xenoestrogens can rapidly reverse actions of the DAT. (inhibitorkit.com)
  • Skeletal muscle is characterized by a remarkable capacity to rearrange after physiological changes and efficiently regenerate. (biomed.news)
  • More importantly, the bioprinted constructs with neural cell integration facilitate rapid innervation and mature into organized muscle tissue that restores normal muscle weight and function in a rodent model of muscle defect injury. (nature.com)
  • The miRNA-mRNA profiles and bioinformatics study suggested that the SFRP1 gene was potentially regulated by miRNA-1/206 during porcine skeletal muscle development. (biomedcentral.com)
  • Panobinostat treatment drastically repressed mRNA for DNMT1 and DNMT3a in the two cell lines whilst no adjustments have been observed in DNMT3b levels. (ilreceptor.com)
  • These cells are located beneath the basal lamina of myofiber in a dormant state. (elifesciences.org)
  • For example, muscle stem cells (MuSCs), located beneath the basal lamina, exist in the quiescent state but can transition to an activated, proliferative state upon injury. (biomed.news)
  • These results suggest that the 3D bioprinted human neural-skeletal muscle constructs can be rapidly integrated with the host neural network, resulting in accelerated muscle function restoration. (nature.com)
  • These constructs (mm 3 -cm 3 scale) consisted of tens to hundreds of long parallel myofiber bundles, containing densely packed, highly viable, and aligned muscle cells. (nature.com)
  • While host nerve integration and formation of NMJs were evident within the implanted skeletal muscle constructs, we observed that the constructs did not support the full restoration of defected muscles at 8-week post-implantation, which is likely due to the delayed integration of host nerve. (nature.com)
  • KIT is a receptor tyrosine kinase type III, which binds to stem cell factor. (inhibitorkit.com)
  • The compromised tissue repair program is attributable to the gradual depletion of stem cells and to altered regulatory signals. (biomed.news)
  • Neurogenesis-on-Chip: Electric field modulated transdifferentiation of human mesenchymal stem cell and mouse muscle precursor cell coculture [med. (emf-portal.org)
  • From a research, medical, and business standpoint, mesenchymal stem cell (MSC)-based therapies are fascinating. (biomedcentral.com)
  • Neural input into this bioprinted skeletal muscle construct shows the improvement of myofiber formation, long-term survival, and neuromuscular junction formation in vitro. (nature.com)
  • Ex vivo cultures of myofiber explants demonstrate that ablation of IRE1α reduces the proliferative capacity of myofiber-associated satellite cells. (elifesciences.org)
  • These approaches have achieved bioengineered skeletal muscle tissue fabrication with cellular alignment in vitro, and some showed a degree of therapeutic potential in vivo. (nature.com)
  • Then, we comprehensively assessed the functional and histological parameters of skeletal muscle injury in mice and the phenotype shifting in macrophages through molecular biological methods and immunofluorescence analysis both in vivo and in vitro . (ijbs.com)
  • The comprehensive functional tests and histological analysis in vivo indirectly and directly proved the effectiveness of LIPUS for muscle recovery. (ijbs.com)
  • Depletion of macrophages in vivo eliminated the therapeutic effects of LIPUS, indicating that improvement in muscle function was the result of M2-shifted macrophage polarization. (ijbs.com)
  • The main interest of her research activity is the nerve-muscle communication and the skeletal muscle physiology, including muscle plasticity and impact of ageing on the neuromuscular system. (units.it)
  • In this light, they will be useful for identification of new pharmacological tools to control the activity of muscle AChRs and, thus, for finding novel strategies for neuromuscular diseases associated with altered neuromuscular transmission. (units.it)
  • In line with all the reduction of methylation, an greater expression of APC was observed in each cell lines, reaching the highest degree at 48 h for Hep3B and at 72 h for HepG2, respectively. (ilreceptor.com)
  • These findings had been corroborated by westernblot analysis displaying a powerful reduction of DNMT1 and DNMT3a protein in each cell lines but not of DNMT3b. (ilreceptor.com)
  • Dual luciferase assay and Western-blot results demonstrated that SFRP1 was a target of miR-1/206 in porcine iliac endothelial cells. (biomedcentral.com)
  • Myf5 is considered to be the earliest expressed regulatory factor gene in myogenesis. (wikipedia.org)
  • MicroRNA-1/206(miRNA-1/206) is specifically expressed in skeletal muscle and play a critical role in myogenesis. (biomedcentral.com)
  • Moreover, miRNAs play a modulatory role in the development and growth of skeletal muscles [ 22 ]. (biomedcentral.com)
  • From the presence of anti B1 antibody, a significant lessen while in the percentage of cells displaying Ca2 transients was observed, up to 96%, consistent with an vital role of integrin engagement within the generation of Ca2 oscilla tions. (ilreceptor.com)
  • Dystrophin has a structural role as a cytoskeletal stabilization protein and protects cells against contraction-induced damage. (biomedcentral.com)
  • Semaphorins are a wide family of extracellular regulatory signals with a multifaceted role in cell-cell communication. (biomed.news)
  • These changes include elongation, polarization, aggregation and fusion, which ultimately give rise to functional muscle. (biologists.com)
  • A bioengineered skeletal muscle construct that mimics structural and functional characteristics of native skeletal muscle is a promising therapeutic option to treat extensive muscle defect injuries. (nature.com)
  • it is expressed in migrating hypaxial cells and dermomyotome cells, but is not expressed at all during the development of facial muscle. (wikipedia.org)
  • Studies have shown that mice muscle development in the intercostal and paraspinal regions can be delayed by inactivating Myf-5. (wikipedia.org)
  • These consequences further reveal the complexity of myogenesis and the importance of each genetic factor in proper muscle development. (wikipedia.org)
  • Our results indicate that the SFRP1 gene is regulated by miR-1/206 and potentially affects skeletal muscle development. (biomedcentral.com)
  • Despite normal development, the membrane in dystrophin-deficient cells is easily damaged. (biomedcentral.com)
  • Effect of weak static magnetic fields on the development of cultured skeletal muscle cells [med. (emf-portal.org)
  • Influence of low-intensity magnetic fields on the development of satellite muscle cells of a newborn rat in primary culture [med. (emf-portal.org)