Mapping sarcopenia's causal proteome reveals a leptin-driven inflammatory-mitochondrial axis for early prediction.

Jing Sun, Mingchen Yan, Jiang Dan, Chen Yang, Fuyu Duan, Jie Luo, Hao Chen, John Zh Zhang, Qizhou Lian

State Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.State Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. · pubmed

Paper

Abstract

Sarcopenia, the age-related loss of muscle mass and function, is a major barrier to healthy aging. However, its molecular origins remain obscure, and current clinical tools lack the sensitivity needed to detect risk before significant decline occurs.

The following analysis is generated by AI and may contain errors. It is separate from the authors’ abstract and is not peer review.

Research summary

The study identifies a specific leptin-driven inflammatory-mitochondrial axis as a causal driver of sarcopenia, offering a mechanistic target for early intervention in age-related muscle decline. This work is relevant because it moves beyond correlational biomarkers to propose a root-cause mechanism linking metabolic signaling (leptin) and cellular health (mitochondria) to a fundamental aging phenotype, suggesting that modulating this axis could preserve muscle function and potentially extend healthspan.

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