基础研究

GDF11 改善肌少症:通过 MYC 恢复骨骼肌卫星细胞功能

来源:Genes & diseases · PMID 42960208 · DOI 10.1016/j.gendis.2026.102095 · 来源:IMA 知识库《文献层·文献监控卡片》2026-11-01 期 · 全文级(file_id dlMXdlgtPZzo,实际下载核验) · 全文已获取并通过归属校验

时间标签:数据日期 2026-11-01 · 生成时间 2026-11-01 05:30(Asia/Shanghai)| 检索窗口 PubMed edat 2026/10/31–2026/11/01 | 情报发生日期 2026-11-01

研究问题

In this study, we probed into the effects of GDF11 and MYC on MuSCs.

方法

To further investigate the role of MYC in regulating mitochondrial function in MuSCs, we assessed the OCR as a measure of mitochondrial activity.;We conducted in vitro experiments using GDF11, MYC overexpression, and MYC inhibition to assess their impact on MuSC biology.;Then, ChIP-seq was performed using an anti-MYC antibody.

核心结论

Consistently, immunostaining for Pax7 revealed an increased number of Pax7 + MuSCs in the GDF11+MYC group compared to the GDF11 group, whereas Pax7 + cell numbers were reduced in the GDF11+MYC inhibitor group ( C).;Collectively, our findings suggest that GDF11, through modulation of MYC, holds promise as a therapeutic strategy for restoring MuSC function and potentially alleviating sarcopenia.;Collectively, our findings suggest that GDF11, through modulation of MYC, holds promise as a therapeutic strategy for restoring MuSC function and potentially alleviating sarcopenia.;In this study, MYC overexpression significantly reduced apoptosis in MuSCs, suggesting a protective role in maintaining cellular viability during muscle regeneration ( E and F).

局限

(原文未给出可直接抽取的对应表述)

对本项目的价值

高价值:GDF11「年轻化因子」长期有争议,本文在肌卫星细胞层面给出机制闭环(GDF11 结合 MYC 启动子 → MYC 依赖的增殖/分化、端粒与线粒体改善),是干细胞衰老干预的可检验靶点。 | 价值分 1.0/5(★☆☆☆☆)

全文来源

PubMed PMC JATS 全文(正文 11,370 字符,已过 DOI 逐字 + 题名指纹双重归属校验)

原文题录

  • 英文标题:GDF11 restores skeletal muscle satellite cell function via MYC to ameliorate sarcopenia.
  • 期刊与标识:Genes & diseases · PMID 42960208 · DOI 10.1016/j.gendis.2026.102095

B 级证据分级:B 级(同行评议临床前研究,主要为动物模型)

本文核心结论来自动物模型或体外细胞学,属临床前证据,不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义,与人类临床结局之间仍有距离。

关于本文的文献来源:本站依据 IMA 知识库「五刊监控·深度文献卡片」撰写,依据已获取的期刊全文(方法、样本量与结论已回到原文核对);未能获取全文的同批条目另行标注「摘要级」,全程未做任何数值推算补全。