Table 3:
MicroRNAs in Ubiquitination and Proteasomal Degradation
| MicroRNA | Target | Mechanism | REF |
|---|---|---|---|
| miR-1 | MuRF1, MAFbx | Induces MuRF1 and MAFbx expression via the HSP70/protein kinase B(Akt)/forkhead box (Fox) O3 signaling pathway. Cause of Dex-induced muscle atrophy | 284, 289, 290 |
| miR-23a | MuRF1, MAFbx | Inhibits the translational activation of MuRF1 and MAFbx via binding with their 3′-UTR | 284, 285, 288, 289, 291, 292 |
| miR-199/214 cluster | MuRF1, MAFbx | Regulation of atrophic gene expression in a PI3K/Akt/FoxO-dependent manner | 288, 289, 291-293 |
| miR-182 | Atrophic genes | Represses atrophic gene expression via inhibition of FoxO protein translation | 284, 285, 288, 289, 291, 292 |
| miR-486 | PTEN | Suppressing PTEN expression enhances PI3K/Akt activation and promotes FoxO phosphorylation. Phosphorylated FoxO is located in the cytoplasm and is degraded by the proteasome. | 284, 285, 288, 289, 291, 292 |
| miR-71 | ERAD | Promotes ubiquitin-dependent protein turnover to maintain proteostasis and longevity in nematodes | 284, 285, 288, 289, 291, 292 |
| miR-30 | HD | Inhibits ubiquitin complex binding with proteasome | 288, 289 |