Nuclear receptor coactive 4-mediated ferritinophagy: a key role of heavy metals toxicity

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Abstract
Nuclear receptor coactive 4 (NCOA4) is a specific receptor for ferritinophagy, transporting ferritin to lysosomal degradation, releasing free iron, and excessive iron levels may lead to cellular redox imbalance, contributing to cell death, predominantly ferroptosis. NCOA4 is regulated by a variety of transcriptional, post-transcriptional, translational, and post-translational modifications. Targeted modulation of NCOA4-mediated ferritinophagy has been successfully used as a therapeutic strategy in several disease models. Recent evidences have elucidated that ferritinophagy and ferroptosis played a major role in heavy metals toxicity. In this review, we explored the regulatory mechanism of NCOA4 as the sole receptor for ferritinophagy from multiple perspectives based on previous studies. The significant role of ferritinophagy-mediated ferroptosis in heavy metals toxicity was discussed in detail, emphasizing the great potential of NCOA4 as a target for heavy metals toxicity.
Funding Information
  • National Natural Science Foundation of China (32273088, 31902330)

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