Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Dec 1;135(23):jcs259748.
doi: 10.1242/jcs.259748. Epub 2022 Dec 12.

Diversity of mitophagy pathways at a glance

Affiliations

Diversity of mitophagy pathways at a glance

Ian G Ganley et al. J Cell Sci. .

Abstract

Mitochondria are crucial organelles that play a central role in various cell signaling and metabolic pathways. A healthy mitochondrial population is maintained through a series of quality control pathways and requires a fine-tuned balance between mitochondrial biogenesis and degradation. Defective targeting of dysfunctional mitochondria to lysosomes through mitophagy has been linked to several diseases, but the underlying mechanisms and the relative importance of distinct mitophagy pathways in vivo are largely unknown. In this Cell Science at a Glance and the accompanying poster, we describe our current understanding of how parts of, or whole, mitochondria are recognized by the autophagic machinery and targeted to lysosomes for degradation. We also discuss how this might be regulated under different physiological conditions to maintain mitochondrial and cellular health.

Keywords: BNIP3; HIF1; Mitochondria; Mitophagy; NIX; PINK1; Parkin; SLR; Selective autophagy.

PubMed Disclaimer

Conflict of interest statement

Competing interests The authors declare no competing or financial interests.

References

    1. Abeliovich, H., Zarei, M., Rigbolt, K. T. G., Youle, R. J. and Dengjel, J. (2013). Involvement of mitochondrial dynamics in the segregation of mitochondrial matrix proteins during stationary phase mitophagy. Nat. Commun. 4, 2789. 10.1038/ncomms3789 - DOI - PMC - PubMed
    1. Abudu, Y. P., Shrestha, B. K., Zhang, W., Palara, A., Brenne, H. B., Larsen, K. B., Wolfson, D. L., Dumitriu, G., Oie, C. I., Ahluwalia, B. S.et al. (2021). SAMM50 acts with p62 in piecemeal basal- and OXPHOS-induced mitophagy of SAM and MICOS components. J. Cell Biol. 220, e202009092. 10.1083/jcb.202009092 - DOI - PMC - PubMed
    1. Allen, G. F. G., Toth, R., James, J. and Ganley, I. G. (2013). Loss of iron triggers PINK1/Parkin-independent mitophagy. EMBO Rep. 14, 1127-1135. 10.1038/embor.2013.168 - DOI - PMC - PubMed
    1. Bellot, G., Garcia-Medina, R., Gounon, P., Chiche, J., Roux, D., Pouyssegur, J. and Mazure, N. M. (2009). Hypoxia-induced autophagy is mediated through hypoxia-inducible factor induction of BNIP3 and BNIP3L via their BH3 domains. Mol. Cell. Biol. 29, 2570-2581. 10.1128/MCB.00166-09 - DOI - PMC - PubMed
    1. Bento, C. F., Renna, M., Ghislat, G., Puri, C., Ashkenazi, A., Vicinanza, M., Menzies, F. M. and Rubinsztein, D. C. (2016). Mammalian autophagy: how does it work? Annu. Rev. Biochem. 85, 685-713. 10.1146/annurev-biochem-060815-014556 - DOI - PubMed