Circular RNA circAtxn10 regulates skeletal muscle cell differentiation by targeting miR-143-3p and Chrna1

• 발행기관: 대한생리학회-대한약리학회
• 저자명: Nakwon Choe Anna Jeong Hosouk Joung Dongtak Jeong Young-Kook Kim Hyun Kook Duk-Hwa Kwon
• 간행물 정보: 『The Korean Journal of Physiology & Pharmacology』제29권 제5호, 637~648쪽, 전체 12쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2025.09.01

국문 초록

Skeletal muscle differentiation is a complex process regulated by a network of genes and transcription factors. Recent studies have revealed the roles of circular RNAs (circRNAs) and microRNAs (miRNAs) in modulating gene expression during myogenesis. In this study, we focused on the functional interplay between circAtxn10, miR-143-3p, and the nicotinic acetylcholine receptor subunit alpha 1 (Chrna1) in skeletal muscle differentiation. Our results demonstrate that circAtxn10 expression increases during myogenic differentiation and acts as a sponge for miR-143-3p through direct binding. We identified Chrna1 as a direct target of miR-143-3p through three binding sites in its 3’-UTR and showed that both miR-143-3p mimic and Chrna1 knockdown significantly impair myogenesis. Notably, Chrna1 overexpression dramatically enhanced myogenic marker expression and myotube formation. Our findings establish a regulatory axis involving circAtxn10, miR-143-3p, and Chrna1 that plays a critical role in modulating skeletal muscle differentiation, providing new insights into the complex molecular mechanisms regulating myogenesis.

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INTRODUCTION

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키워드

Chrna1 circRNA miR-143-3p Myogenesis Skeletal muscle