high MyoD expression represses cell renewal, promotes terminal differentiation and can induce apoptosis. (wikipedia.org)
The transcription factor CCAAT/enhancer binding protein beta (C/EBPβ) is expressed in Pax7 + satellite cells of healthy muscle and is downregulated during myoblast differentiation. (biomedcentral.com)
Persistent expression of C/EBPβ upregulates Pax7, inhibits MyoD, and blocks myogenic differentiation. (biomedcentral.com)
CCAAT/enhancer binding proteins (C/EBPs) are a family of transcription factors that regulate cellular growth and differentiation, metabolism, and inflammation [ 18 ]. (biomedcentral.com)
When overexpressed in the murine myoblast cell line C2C12 or in primary myoblasts, C/EBPβ reduced MyoD and other myogenic protein levels during differentiation, in addition to reducing myoblast fusion. (biomedcentral.com)
Their fate is regulated by the expression of various transcription factors, including paired box 7 (Pax7) and myogenic differentiation (MyoD) [ 6 ]. (biomedcentral.com)
Sonic 125256-00-0125B11 hedgehog (Shh) is a forty five-kDa potent signaling protein that regulates the proliferation, differentiation, and cellular patterning throughout a extensive selection of cell types [2,3]. (acthreceptor.com)
It was described that hedgehog proteins right act on osteogenic precursor cells and osteoblasts to stimulate osteogenic differentiation [7]. (acthreceptor.com)
Focal adhesion kinase (FAK) is a one hundred twenty five-kD non-receptor tyrosine kinase that plays a main position in mediating sign transduction by integrins, as effectively as by growth aspect receptors, in the regulation of cell adhesion, migration, proliferation, and differentiation in a range of mobile varieties [12,thirteen,fourteen]. (acthreceptor.com)
A novel FAK Tyr397 inhibitor suppresses osteoblast proliferation and differentiation, as well as osteoclast formation, via PTHrP-induced RANKL expression in murine bone stromal ST2 cells [twenty]. (acthreceptor.com)
Using synchronized cultures of C2C12 myoblasts to model these divergent programs, we show that p8 (also known as Nupr1 ), a G1-induced gene, negatively regulates the cell cycle and promotes myogenic differentiation. (biologists.com)
Proliferation8
One of the main actions of MyoD is to remove cells from the cell cycle (halt proliferation for terminal cell cycle arrest in differentiated myocytes) by enhancing the transcription of p21 and myogenin. (wikipedia.org)
Proliferating, BrdU-positive cells in muscle sections were detected with immunohistochemistry indicating different cell types and decreasing proliferation with age. (nature.com)
Cell culture experiments indicated that Gln could promote cell proliferation in a dose dependent manner, but expression of myogenesis regulatory genes was not altered. (nature.com)
Overall, Gln supplementation stimulated cell proliferation in muscle tissue and in vitro in myogenic cell culture, whereas muscle growth regulatory genes were barely altered. (nature.com)
6 These manipulations result in satellite cell activation and proliferation, which in turn are responsible for muscle repair and regeneration. (arvojournals.org)
Hepatocyte growth factor (HGF) is produced by stromal and mesenchymal cells, and it stimulates epithelial cell proliferation, motility, morphogenesis and angiogenesis in various organs via tyrosine phosphorylation of its cognate receptor, Met. (spandidos-publications.com)
WAT is characterised by its capacity to adapt and expand in response to surplus energy through processes of adipocyte hypertrophy and/or recruitment and proliferation of precursor cells in combination with vascular and extracellular matrix remodelling. (springer.com)
A single, early local administration of high-dose bFGF prevented atrophic changes in the thyroarytenoid muscles by activating satellite cell proliferation and reforming neuromuscular junctions. (biomedcentral.com)
MyoD14
MyoD, which was discovered in the laboratory of Harold M. Weintraub, belongs to a family of proteins known as myogenic regulatory factors (MRFs). (wikipedia.org)
MyoD is one of the earliest markers of myogenic commitment. (wikipedia.org)
MyoD is expressed at extremely low and essentially undetectable levels in quiescent satellite cells, but expression of MyoD is activated in response to exercise or muscle tissue damage. (wikipedia.org)
Although MyoD marks myoblast commitment, muscle development is not dramatically ablated in mouse mutants lacking the MyoD gene. (wikipedia.org)
MyoD was cloned by a functional assay for muscle formation reported in Cell in 1987 by Davis, Weintraub, and Lassar. (wikipedia.org)
The researchers expressed the complementary DNA (cDNA) of the murine MyoD protein in a different cell lines (fibroblast and adipoblast) and found MyoD converted them to myogenic cells. (wikipedia.org)
The function of MyoD in development is to commit mesoderm cells to a skeletal myoblast lineage, and then to regulate that continued state. (wikipedia.org)
Thus MyoD enhances its own activity in the cell in a feedforward manner. (wikipedia.org)
MyoD is a transcription factor and can also direct chromatin remodelling through binding to a DNA motif known as the E-box. (wikipedia.org)
KAP1 is localized at muscle-related genes in myoblasts along with both MyoD and Mef2 (a myocyte transcription enhancer factor). (wikipedia.org)
When the kinase MSK1 phosphorylates KAP1, the corepressors previously bound to the scaffold are released allowing MyoD and Mef2 to activate transcription. (wikipedia.org)
Once the "master controller" MyoD has become active, SETDB1 is required to maintain MyoD expression within the cell. (wikipedia.org)
MyoD has also been shown to function cooperatively with the tumor suppressor gene, Retinoblastoma (pRb) to cause cell cycle arrest in the terminally differentiated myoblasts. (wikipedia.org)
In the resected muscle and in the passively stretched antagonist muscle, there was a dramatic increase in the number of myofibers positive for neonatal MyHC and in the number of BrdU- and MyoD-positive satellite cells. (arvojournals.org)
10 Even more compelling is a recent study that subjected individual quiescent satellite cells isolated from adult limb muscle to stretching in vitro, and showed that direct stretching of the satellite cells themselves results in activation and bromodeoxyuridine (BrdU) incorporation. (arvojournals.org)
Protein4
Macrophage stimulating protein (MSP) was discovered as a serum protein that promoted mouse macrophage motility ( 13 ), and was later purified to homogeneity from human plasma ( 14 ). (spandidos-publications.com)
The basic fibroblast growth factor (bFGF) is a member of the fibroblast growth factor family and is a key protein in regenerative medicine. (biomedcentral.com)
We isolated both damaged and intact myofibers from a mouse model of muscular dystrophy using laser-capture microdissection and found that the levels of myoferlin mRNA and protein were increased in damaged myofibers. (biologists.com)
To further define which neurons express Eph, antibodies were generated to the cytoplasmic portion of the Eph protein. (sdbonline.org)
Myofiber2
Understanding the effects of strabismus surgery on muscle cell biological reactions and myofiber remodeling may suggest new approaches for improving surgical outcomes. (arvojournals.org)
There are a number of factors that initiate myofiber remodeling in adult skeletal muscles. (arvojournals.org)
Regeneration8
Using genetic tools to conditionally abrogate C/EBPβ expression in Pax7 + cells, we examined the role of C/EBPβ in self-renewal of satellite cells during muscle regeneration. (biomedcentral.com)
After a single muscle injury, C/EBPβ-deficient satellite cells fail to self-renew resulting in a reduction of satellite cells available for future rounds of regeneration. (biomedcentral.com)
After a second round of injury, muscle regeneration is impaired in C/EBPβ conditional knockout mice compared to wild-type control mice. (biomedcentral.com)
These findings demonstrate that C/EBPβ is a novel regulator of satellite cell self-renewal during muscle regeneration acting at least in part through Notch2. (biomedcentral.com)
1 2 Residing outside the sarcolemma but within the basal lamina of individual myofibers is a population of cells that are responsible for muscle repair and regeneration, the satellite cells. (arvojournals.org)
Conditional Met KO mice were generated using Cre‑loxP methodology and characterization of these mice indicated that the HGF‑Met signaling pathway is essential in regeneration, protection, and homeostasis in various tissue types and cells. (spandidos-publications.com)
Satellite cells (SCs), which are precursors of skeletal muscles, such as the TA muscle, play a key role in muscle homeostasis and regeneration. (biomedcentral.com)
Furthermore, the implantation of Shhtransduced cells increased the bone regeneration in a rabbit product of calvaria problems [8]. (acthreceptor.com)
Precursor1
Postnatal growth and repair of skeletal muscle relies upon a population of quiescent muscle precursor cells, called satellite cells that can be activated to proliferate and differentiate into new myofibers, as well as self-renew to replenish the satellite cell population. (biomedcentral.com)
SHH stimulates osteoclast formation with PTHrP in a co-lifestyle technique consisting of ST2 cells and murine CD11b+ bone marrow cells [ten]. (acthreceptor.com)
Progenitor cells1
Adult regenerative myogenesis is dependent on progenitor cells. (biologists.com)
Promotes1
HGF is produced and secreted by adjacent stromal and mesenchymal cells, it contributes to the development of epithelial organs in a paracrine fashion, exerts regenerative effects on epithelia in the liver, kidney, lung, and other tissues, and promotes the regression of fibrosis in numerous organs ( 7 , 8 ). (spandidos-publications.com)
Myonuclei1
Both active and passive stretch of the rectus muscles produced by strabismus surgery dramatically upregulated the processes of satellite cell activation, integration of new myonuclei into existing myofibers, and concomitant upregulation of immature myosin heavy chain isoforms. (arvojournals.org)
Fibroblast3
HGF was cloned as a growth factor for hepatocytes ( 1 , 2 ), is identical to scatter factor (SF) and was originally discovered as a fibroblast-derived cell motility factor for epithelial cells ( 3 ). (spandidos-publications.com)
Various growth factors, cytokines, and prostaglandins upregulate HGF gene expression, including basic fibroblast growth factor, oncostatin M, hypoxia-inducible factor 1α and nuclear factor-κB (NF-κB) ( 9 ). (spandidos-publications.com)
Research on regenerative medicine using basic fibroblast growth factor (bFGF) has recently advanced in the field of laryngology. (biomedcentral.com)
Adult1
Jyotsna Dhawan ABSTRACT Adult stem cells persist in mammalian tissues by entering a state of reversible quiescence, referred to as G 0 , which is associated with low levels of transcription. (biologists.com)
Vitro1
Therefore, we complemented our investigations into the cellular development of the skeletal muscle of neonatal piglets with in vitro studies using a primary porcine myogenic cell culture model with Gln supplementation. (nature.com)
Myofibers1
3 When a muscle is injured, this specialized cell population becomes activated, divides, and either repairs damaged fibers or forms new myofibers. (arvojournals.org)
Nuclear2
which promoted receptor activator for nuclear factor B ligand (RANKL). (acthreceptor.com)
Nuclear factor of activated T-cell (NFAT. (biologists.com)
Immunohistochemistry1
Immunohistochemistry indicated that bFGF significantly increased the number of satellite cells in the thyroarytenoid muscle up to day 14 and that of neuromuscular junctions on days 28 and 56. (biomedcentral.com)
Muscle5
Muscle samples were collected and myogenic cells were isolated and cultivated. (nature.com)
The delayed growth of LBW piglets is mainly due to a slower development of skeletal muscle as the myogenic activity is usually impaired in these animals during the fetal and early postnatal period 3 , 4 . (nature.com)
PURPOSE: To explore muscle properties, gross motor performance, and quality of life (QoL) in children with sickle cell disease (SCD) compared with controls and to assess relationships among these outcomes. (bvsalud.org)
Another stimulus that activates satellite cells is stretching of the muscle. (arvojournals.org)
7 8 9 In fact, passive stretching alone can activate limb muscle satellite cells. (arvojournals.org)
Activity1
These stories advise tha 16926152 t Shh has a osteogenic and osteoclastogenic activity in osteoblast cells [11], but the downstream signaling of SHH in fracture therapeutic has not been determined. (acthreceptor.com)
Expression1
In the first stages of fracture fix, the expression of sonic hedgehog is detected in proliferating callus-forming cells in the periosteum [6]. (acthreceptor.com)
Hypertrophy1
Irradiation treatment, which eliminates satellite cells from these muscles, prevents the compensatory hypertrophy in these types of experiments. (arvojournals.org)
Immunostaining with an affinity-purified mouse antibody reveals that Eph is highly targeted to axons and growth cones of developing neurons within the VNC. (sdbonline.org)
Effects1
When implanted subcutaneously in mice with intradermally transplanted tumours, the device led to significant antitumour effects by irradiating for 10 d at approximately 1,000-fold lower intensity than conventional PDT approaches. (regenerativemedicine.net)
Formation1
For bone formation to happen, osteoblast cells need to proliferate and migrate from the bone marrow compartment to bone surfaces, the place they adhere, differentiate, and deposit the bone matrix concurrently with bone and bony callus resorption by osteoclasts [1]. (acthreceptor.com)
Response1
FAK deficiency in osteoblasts and osteocytes in vivo benefits in delayed bone healing and transforming and interrupts the response of bone marrow cells to anabolic mechanical stimuli in a tibial injuries product [seventeen,18]. (acthreceptor.com)