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In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice
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A brief overview of BNIP3L/NIX receptor-mediated mitophagy

Mija Marinković1, Ivana Novak1

  • 1School of Medicine, University of Split, Croatia.

FEBS Open Bio
|October 1, 2021
PubMed

Insights

Mitophagy removes damaged or healthy mitochondria. The BNIP3L/NIX receptor is key in programmed mitochondrial removal, but its role in cell life and death decisions requires further study.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Autophagy Research

Background:

  • Mitophagy selectively removes mitochondria, crucial for cellular homeostasis.
  • While PINK1/Parkin pathway targets damaged mitochondria, receptor-mediated mitophagy is vital for development.
  • BCL2/adenovirus E1B 19-kDa-interacting protein 3-like (BNIP3L/NIX) is a key mitophagy receptor.

Purpose of the Study:

  • To review the current understanding of BNIP3L/NIX in mitophagy.
  • To highlight unresolved questions regarding BNIP3L/NIX regulation and function.
  • To explore BNIP3L/NIX's role in balancing cellular life and death.

Main Methods:

  • Literature review of mitophagy research.
  • Analysis of studies on BNIP3L/NIX function and regulation.
  • Synthesis of current knowledge on BNIP3L/NIX pathways.

Main Results:

  • BNIP3L/NIX mediates programmed removal of healthy mitochondria, notably in erythrocytes.
  • Its role extends to various cell types beyond red blood cell development.
  • Regulation by phosphorylation and dimerization is understood, but precise control mechanisms remain unclear.

Conclusions:

  • BNIP3L/NIX is a critical regulator of selective mitochondrial clearance.
  • Further research is needed to elucidate BNIP3L/NIX's complex role in cellular fate decisions.
  • Understanding BNIP3L/NIX is essential for insights into development and disease.
Keywords:
BNIP3L/NIXmitochondriamitophagyreticulocytes

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