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Lead (Pb) induced ATM-dependent mitophagy via PINK1/Parkin pathway.
In this study, we found that Pb could trigger mitophagy in both HEK293 cells and the kidney cortex of male Kunming mice. However, whether ataxia telangiectasis mutated (ATM) which is reported to be linked with PTEN-induced putative kinase 1 (PINK1)/Parkin pathway (a well-characterized mitophagic pathway) participates in the regulation of Pb-induced mitophagy and its exact role remains enigmatic. Our results indicated that Pb activated ATM in vitro and in vivo, and further in vitro studies showed that ATM could co-localize with PINK1 and Parkin in cytosol and interact with PINK1. Knockdown of ATM by siRNA blocked Pb-induced...
Source: Toxicology Letters - April 13, 2018 Category: Toxicology Authors: Gu X, Qi Y, Feng Z, Ma L, Gao K, Zhang Y Tags: Toxicol Lett Source Type: research