Scholarlink

<p>Emerging evidence suggests that ferroptosis is probably involved in the selective loss of dopaminergic neurons in Parkinson’s disease (PD). Acetaldehyde dehydrogenase 2 (ALDH2) plays an important role in detoxifying lipid aldehydes derived from lipid peroxidation, a process that is closely linked to ferroptosis. In our study, ALDH2 knockout (KO) mice were more susceptible to the loss of tyrosine hydroxylase-positive neurons and behavioral changes in a PD mouse model. Similar observations were made in a knock-in (KI) mouse model with one of the most common single-nucleotide polymorphisms of ALDH2, rs671. Interestingly, ALDH2 KO or KI mice showed enhanced ferroptosis in the SN. Moreover, expression of ALDH2 modified the sensitivity of SH-SY5Y cells to ferroptosis inducers. Mechanistic studies have shown that ALDH2 regulates neuronal cell ferroptosis by interacting with the antioxidant enzyme peroxiredoxin 6 (PRDX6) to enhance its enzymatic activity, whereas the ALDH2 rs671 variant weakens its binding to PRDX6.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

ALDH2 protects against dopaminergic neuronal cell ferroptosis by enhancing the enzyme activity of PRDX6 in Parkinson’s disease

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月2日

查看全文
  • Xuan Li,
  • Si-Jia Peng,
  • Yu Wang,
  • Xin Chen,
  • Ting-Ting Wu,
  • Ya Feng,
  • Xi-Xi Wang,
  • Huiyong Yin,
  • Yun-Cheng Wu

摘要

Emerging evidence suggests that ferroptosis is probably involved in the selective loss of dopaminergic neurons in Parkinson’s disease (PD). Acetaldehyde dehydrogenase 2 (ALDH2) plays an important role in detoxifying lipid aldehydes derived from lipid peroxidation, a process that is closely linked to ferroptosis. In our study, ALDH2 knockout (KO) mice were more susceptible to the loss of tyrosine hydroxylase-positive neurons and behavioral changes in a PD mouse model. Similar observations were made in a knock-in (KI) mouse model with one of the most common single-nucleotide polymorphisms of ALDH2, rs671. Interestingly, ALDH2 KO or KI mice showed enhanced ferroptosis in the SN. Moreover, expression of ALDH2 modified the sensitivity of SH-SY5Y cells to ferroptosis inducers. Mechanistic studies have shown that ALDH2 regulates neuronal cell ferroptosis by interacting with the antioxidant enzyme peroxiredoxin 6 (PRDX6) to enhance its enzymatic activity, whereas the ALDH2 rs671 variant weakens its binding to PRDX6.