Mitochondrial dynamics, mitophagy and biogenesis in neonatal hypoxic-ischaemic brain injury

FEBS Lett. 2018 Mar;592(5):812-830. doi: 10.1002/1873-3468.12943. Epub 2017 Dec 25.

Abstract

Hypoxic-ischaemic encephalopathy, resulting from asphyxia during birth, affects 2-3 in every 1000 term infants and depending on severity, brings about life-changing neurological consequences or death. This hypoxic-ischaemia (HI) results in a delayed neural energy failure during which the majority of brain injury occurs. Currently, there are limited treatment options and additional therapies are urgently required. Mitochondrial dysfunction acts as a focal point in injury development in the immature brain. Not only do mitochondria become permeabilised, but recent findings implicate perturbations in mitochondrial dynamics (fission, fusion), mitophagy and biogenesis. Mitoprotective therapies may therefore offer a new avenue of intervention for babies who suffer lifelong disabilities due to birth asphyxia.

Keywords: biogenesis; brain injury; fission; fusion; mitochondria; mitophagy; neonatal.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Asphyxia Neonatorum / genetics
  • Asphyxia Neonatorum / metabolism*
  • Asphyxia Neonatorum / pathology
  • Humans
  • Hypoxia-Ischemia, Brain / genetics
  • Hypoxia-Ischemia, Brain / metabolism*
  • Hypoxia-Ischemia, Brain / pathology
  • Infant, Newborn
  • Mitochondria / genetics
  • Mitochondria / metabolism*
  • Mitochondria / pathology
  • Mitophagy*
  • Organelle Biogenesis*