p53 and mitochondrial dysfunction: novel insight of neurodegenerative diseases

Author:

Dai Chun-Qiu,Luo Ting-Ting,Luo Shi-Cheng,Wang Jia-Qi,Wang Sheng-Ming,Bai Yun-Hu,Yang Yan-Ling,Wang Ya-Yun

Abstract

Abstract Mitochondria are organelles responsible for vital cell functions. p53 is a transcription factor that regulates the DNA stability and cell growth normality. Recent studies revealed that p53 can influence mitochondrial function changing from normal condition to abnormal condition under different stress levels. In normal state, p53 can maintain mitochondrial respiration through transactivation of SCO2. When stress stimuli presents, SCO2 overexpresses and leads to ROS generation. ROS promotes p53 inducing MALM (Mieap-induced accumulation of lysosome-like organelles within mitochondria) to repair dysfunctional mitochondria and MIV (Mieap-induced vacuole) to accomplish damaged mitochondria degradation. If stress or damage is irreversible, p53 will translocate to mitochondria, leading into apoptosis or necrosis. Neurodegenerative diseases including Parkinson’s disease, Huntington’s disease and Alzheimer’s disease are still lack of clear explanations of mechanisms, but more studies have revealed the functional relationship between mitochondria and p53 towards the pathological development of these diseases. In this review, we discuss that p53 plays the vital role in the function of mitochondria in the aspect of pathological change metabolism. We also analyze these diseases with novel targeted treating molecules which are related to p53 and mitochondria, hoping to present novel therapies in future clinic.

Funder

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Cell Biology,Physiology

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