ArticleNature communications2026
MFF budding from mitochondria regulates melanosome size and maturation.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
15 authors.
Funding
Abstract
Melanosomes are lysosome-related organelles that produce and accumulate melanin. Their maturation is regulated through interactions with mitochondria and involves the export and recycling of proteins via tubular transport and fission events whose mechanisms are unknown. Here, we demonstrate that the mitochondrial fission factor protein (MFF) is involved in melanosome fission. MFF is trafficked between mitochondria and melanosomes and locates at melanosome fission events. Upon downregulation of MFF, but not of dynamin-related protein 1 (DRP1), melanosomes enlarge, intracellular melanin accumulates, and melanosomal lumenal catabolism increases, indicating that MFF-dependent melanosome fission is required for their maturation. We show that MFF interacts with regulators of the ARP2/3 complex, which drives F-actin nucleation. Actin filaments accumulate between melanosomes at MFF-enriched membrane constriction sites, and silencing of ARP2/3 subunits mimics the increase in melanosome size. MFF regulates actin-dependent fission of melanosomes via the ARP2/3 complex, indicating an extramitochondrial function for MFF in the regulation of melanosome homeostasis.
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