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Loss of iron triggers PINK1/Parkin-independent mitophagy.
EMBO Rep. 2013 Nov 29;14(12):1127-35. doi: 10.1038/embor.2013.168
Allen GF, Toth R, James J, Ganley IG
Abstract:
In this study, we develop a simple assay to identify mitophagy inducers on the basis of the use of fluorescently tagged mitochondria that undergo a colour change on lysosomal delivery. Using this assay, we identify iron chelators as a family of compounds that generate a strong mitophagy response. Iron chelation-induced mitophagy requires that cells undergo glycolysis, but does not require PINK1 stabilization or Parkin activation, and occurs in primary human fibroblasts as well as those isolated from a Parkinson's patient with Parkin mutations. Thus, we have identified and characterized a mitophagy pathway, the induction of which could prove beneficial as a potential therapy for several neurodegenerative diseases in which mitochondrial clearance is advantageous.
PMID: 24176932
Tags: methods