<p>The <i>ECHS1</i> (short-chain enoyl-CoA hydratase 1) gene is critical for mitochondrial fatty acid β-oxidation and branched-chain amino acid metabolism. Mutations in <i>ECHS1</i> lead to severe mitochondrial dysfunction and are implicated in rare metabolic and neurodegenerative disorders. This review summarizes current understanding of how <i>ECHS1</i> participates in key molecular processes, including energy metabolism, oxidative stress regulation, and apoptosis, and discusses its influence on mitochondrial function. It also highlights advances in experimental models, including mouse, Drosophila, and induced pluripotent stem cell (iPSC) -based systems, which have illuminated the gene’s physiological roles while revealing model-specific limitations. Therapeutic approaches, such as dietary interventions, gene therapy, enzyme replacement therapy, and stem cell therapy, are critically evaluated, emphasizing their potential and current challenges. Despite significant progress, gaps remain in understanding <i>ECHS1</i>’s tissue-specific and developmental-stage-specific functions. This review underscores the need for advanced human-relevant models and integrative technologies to address these gaps and foster the development of personalized treatments for <i>ECHS1</i>-related disorders.</p>

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ECHS1: pathogenic mechanisms, experimental models, and emerging therapeutic strategies

  • Qiang Fu,
  • Rui Qiu,
  • Shang Li,
  • Yuxiang Qin,
  • Ziyi Lu,
  • Shanxin Liyao,
  • Zimo Yang,
  • Xiang Cheng,
  • Yuewen Chen,
  • Huan Xu,
  • Yong Cheng

摘要

The ECHS1 (short-chain enoyl-CoA hydratase 1) gene is critical for mitochondrial fatty acid β-oxidation and branched-chain amino acid metabolism. Mutations in ECHS1 lead to severe mitochondrial dysfunction and are implicated in rare metabolic and neurodegenerative disorders. This review summarizes current understanding of how ECHS1 participates in key molecular processes, including energy metabolism, oxidative stress regulation, and apoptosis, and discusses its influence on mitochondrial function. It also highlights advances in experimental models, including mouse, Drosophila, and induced pluripotent stem cell (iPSC) -based systems, which have illuminated the gene’s physiological roles while revealing model-specific limitations. Therapeutic approaches, such as dietary interventions, gene therapy, enzyme replacement therapy, and stem cell therapy, are critically evaluated, emphasizing their potential and current challenges. Despite significant progress, gaps remain in understanding ECHS1’s tissue-specific and developmental-stage-specific functions. This review underscores the need for advanced human-relevant models and integrative technologies to address these gaps and foster the development of personalized treatments for ECHS1-related disorders.