WebThe MRFs, MyoD and myogenin, belong to the basic helix-loop-helix transcription factors. In mature skeletal muscles, MyoD is mainly expressed in fast-twitch muscles and myogenin in slow-twitch muscles 8. Changes in MyoD and myogenin have been reported after muscle disuse caused by denervation, immobilisation or hindlimb suspension 8. WebJan 24, 2024 · Reduction in endogenous Fam210a levels by siRNA suppressed mRNA levels of myogenic factors (Pax7, Myf5, Myogenin, and Mhc) and a muscle degradation factor (Murf1). On the other hand, Fam210a siRNA did not affect mRNA encoding the apoptotic factors Bcl-2 and Bax and the extent of apoptosis as measured by ELISA in C2C12 cells.
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WebJun 25, 2014 · Previous studies have established that MyoD is one of the key transcription factors regulating myostatin expression, presumably as a negative feed-back mechanism, and that myostatin subsequently is … WebTwo key molecules involved in muscle atrophy, MAFbx/ atrogin 1 and MuRF1, are targets of miR-23a [74]. Ectopic expression of miR-23a is sufficient to protect muscles from dexamethasone-induced atrophy both in C2C12 myotubes and in adult mouse muscles. ... NF-κB inhibits myogenesis by promoting myoblast growth and inducing loss of MyoD, … hbb-online.com
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WebThe formation of skeletal muscle fibers is an intricate process controlled by a multitude of signaling pathways, including Wnt, Shh, and FGF. However, the role of the Hippo pathway … WebNov 3, 2024 · 1.1 UPS Genes Modulate Myofibrillar Protein Degradation One of the first UPS genes oncoming to be fundamental for muscle atrophy is the ubiquitin-E3ligase muscle ring finger-1 (MuRF1). MuRF1 role occurs through myofibrillar proteins, which has been implicated in the myofibrils degradation. WebJan 11, 2011 · MuRF1 contains a canonical N-terminal RING domain characteristic of RING-containing E3 ligases [ 44] followed by a MuRF family conserved region, zinc-finger domain (B-box) and leucine-rich coiled-coil domains, which allows it to form homo- and heterodimers with other MuRF proteins [ 104 ], and an acidic C′ terminal tail [ 10] (Fig. 1b ). Fig. 1 hbbothwin.cn