# Functional cooperation between ATG7/autophagy and the PALB2 tumor suppressor in mitochondrial regulation, redox homeostasis, and neuronal health

## TL;DR

This study shows how ATG7 and PALB2 work together to maintain mitochondria, redox balance, and neuronal health, with implications for cancer and neurodegeneration.

## Contribution

The study reveals a new role for PALB2 in mitochondrial regulation and expands the known functions of ATG7 in neuronal health.

## Key findings

- ATG7 and PALB2 functionally cooperate to maintain mitochondrial function and redox homeostasis.
- PALB2 has a previously unknown role in regulating mitochondria and neuronal viability.
- Autophagy inhibition may be a potential treatment for cancers with PALB2 mutations.

## Abstract

In a recently published study, we described a genetic interaction and functional cooperation between Atg7, an essential autophagy gene, and Palb2, a breast cancer susceptibility gene, in the maintenance of mitochondrial function, redox homeostasis, and neuronal viability. Our studies uncovered a new function for PALB2 in mitochondrial regulation and provided new insights into the role of ATG7/autophagy in maintaining redox balance and neuronal health. Here, we summarize the main findings and discuss their implications in neurodegeneration and the potential treatment of PALB2 mutant and similar cancers with autophagy inhibition.