Abstract
Circular RNAs (circRNAs), a novel class of non-coding RNAs with a loop structure, have recently been shown to participate in various pathophysiological processes. However, the precise role of circRNAs in myoblasts remains unclear. In this report, circSVIL was screened and identified from our previous sequencing analysis; we then performed gain- and loss-of-function experiments on bovine myoblasts by CCK8, EdU, flow cytometry, qRT-PCR, and Western blotting. The results indicate that circSVIL facilitates bovine myoblast proliferation and inhibits cell apoptosis. Using mechanism assays such as bioinformatics prediction, RNA immunoprecipitation (RIP), and cytoplasmic separation, we demonstrate that circSVIL could interact with STAT1 and inhibit STAT1 phosphorylation, thereby restraining STAT1's nuclear translocation and affecting its downstream signal cascade. Our results may elucidate a new regulatory pathway for bovine skeletal muscle development.
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