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MRPL12-ANT3 interaction involves in acute kidney injury via regulating MPTP of tubular epithelial cells by Xingzhao Ji; Lingju Chu; Dun Su; Jian Sun; Peng Song; Shengnan Sun; Ying Wang; Qian Mu; Yi Liu; Qiang Wan is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Summary Acute kidney injury (AKI) is a serious disease with no effective treatment. Abnormal opening of mitochondrial permeability transition pore (MPTP) is an important pathological process in ischemia reperfusion injury (IRI), the key factor of AKI. It is essential to elucidate MPTP regulation mechanism. Here, we identified mitochondrial ribosomal protein L7/L12 (MRPL12) specifically binds to adenosine nucleotide translocase 3 (ANT3) under normal physiological conditions, stabilizes MPTP and maintains mitochondrial membrane homeostasis in renal tubular epithelial cells (TECs). During AKI, MRPL12 expression was significantly decreased in TECs, and MRPL12-ANT3 interaction was reduced, leading to ANT3 conformation change, MPTP abnormal opening, and cell apoptosis. Importantly, MRPL12 overexpression protected TECs from MPTP abnormal opening and apoptosis during hypoxia/reoxygenation (H/R). Our results suggest MRPL12-ANT3 axis involves in AKI by regulating MPTP, and MRPL12 could be potential intervention target for treatment of AKI.

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Author

Xingzhao Ji; Lingju Chu; Dun Su; Jian Sun; Peng Song; Shengnan Sun; Ying Wang; Qian Mu; Yi Liu; Qiang Wan

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)