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<p>Aldehyde dehydrogenase (ALDH) 2, a mitochondrial enzyme, is the main acetaldehyde dehydrogenase involved in the scavenging of alcohol-derived acetaldehyde and endogenous aldehydes. The <i>ALDH2</i><sup>rs671</sup> mutation affects 560 million East Asians and is closely related to an increased risk of various human diseases. In addition to its well-known function in detoxifying alcohol-derived acetaldehyde and endogenous aldehydes, ALDH2 is implicated in human health through its regulation of autophagic machinery and multiple cell death pathways (e.g., apoptosis, necroptosis, pyroptosis, ferroptosis, and NETosis). This review summarizes the current knowledge of ALDH2 and the regulatory mechanism through which ALDH2 regulates autophagy and cell death. In addition, we outline the potential role of ALDH2 in the regulation of autophagy and cell death during the occurrence and progression of human diseases, aiming to provide a novel theoretical framework for human disease treatment.</p>

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ALDH2 in autophagy and cell death: molecular mechanisms and implications for diseases

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月18日

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  • Yu Duan,
  • Ze-Chen Shan,
  • Jiao-Jiao Pang,
  • Yu-Guo Chen

摘要

Aldehyde dehydrogenase (ALDH) 2, a mitochondrial enzyme, is the main acetaldehyde dehydrogenase involved in the scavenging of alcohol-derived acetaldehyde and endogenous aldehydes. The ALDH2rs671 mutation affects 560 million East Asians and is closely related to an increased risk of various human diseases. In addition to its well-known function in detoxifying alcohol-derived acetaldehyde and endogenous aldehydes, ALDH2 is implicated in human health through its regulation of autophagic machinery and multiple cell death pathways (e.g., apoptosis, necroptosis, pyroptosis, ferroptosis, and NETosis). This review summarizes the current knowledge of ALDH2 and the regulatory mechanism through which ALDH2 regulates autophagy and cell death. In addition, we outline the potential role of ALDH2 in the regulation of autophagy and cell death during the occurrence and progression of human diseases, aiming to provide a novel theoretical framework for human disease treatment.