Role of apoptosis-inducing factor in perinatal hypoxic-ischemic brain injury  

作　　者：Juan Rodriguez Tao Li Yiran Xu Yanyan Sun Changlian Zhu 

机构地区：[1]Center for Brain Repair and Rehabilitation,Institute of Neuroscience and Physiology,Sahlgrenska Academy,University of Gothenburg,Gothenburg,Sweden [2]Henan Key Laboratory of Child Brain Injury,Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University,Zhengzhou,Henan Province,China [3]Department of Anatomy,School of Basic Medical Science,Zhengzhou University,Zhengzhou,Henan Province,China [4]Department of Women’s and Children’s Health,Karolinska Institutet,Stockholm,Sweden

出　　处：《Neural Regeneration Research》2021年第2期205-213,共9页中国神经再生研究（英文版）

基　　金：the Swedish Research Council(2018-02667);the National Natural Science Foundation of China(31761133015,U1704281,81901335);the Swedish Childhood Cancer Foundation(PR2018-0082);Swedish Governmental Grants to Scientists Working in Health Care(ALFGBG-717791);the Swedish Brain Foundation(FO2018-0034);the Chinese Scholarship Council to TL(201707040025)and to YX(201507040082)。

摘　　要：Perinatal complications,such as asphyxia,can cause brain injuries that are often associated with subsequent neurological deficits,such as cerebral palsy or mental retardation.The mechanisms of perinatal brain injury are not fully understood,but mitochondria play a prominent role not only due to their central function in metabolism but also because many proteins with apoptosis-related functions are located in the mitochondrion.Among these proteins,apoptosis-inducing factor has already been shown to be an important factor involved in neuronal cell death upon hypoxia-ischemia,but a better understanding of the mechanisms behind these processes is required for the development of more effective treatments during the early stages of perinatal brain injury.In this review,we focus on the molecular mechanisms of hypoxic-ischemic encephalopathy,specifically on the importance of apoptosis-inducing factor.The relevance of apoptosis-inducing factor is based not only because it participates in the caspase-independent apoptotic pathway but also because it plays a crucial role in mitochondrial energetic functionality,especially with regard to the maintenance of electron transport during oxidative phosphorylation and in oxidative stress,acting as a free radical scavenger.We also discuss all the different apoptosis-inducing factor isoforms discovered,focusing especially on apoptosis-inducing factor 2,which is only expressed in the brain and the functions of which are starting now to be clarified.Finally,we summarized the interaction of apoptosis-inducing factor with several proteins that are crucial for both apoptosis-inducing factor functions(prosurvival and pro-apoptotic)and that are highly important in order to develop promising therapeutic targets for improving outcomes after perinatal brain injury.

关 键 词：apoptosis apoptosis inducing factor ASPHYXIA cell death free radical HYPOXIA-ISCHEMIA mitochondria NEONATES oxidative stress 

分 类 号：R714.7[医药卫生—妇产科学]