ArticleNature metabolism2026
PLIN5 phosphorylation orchestrates mitochondria lipid-droplet coupling to control hepatic lipid flux and steatosis.
Article in Nature metabolism, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- The interplay of lipid droplets, mitochondria, and ER in governing hepatic lipid metabolism.Current opinion in cell biology · 2026Review
- Mitochondrial calcium regulates lipid metabolism by modulating tethering of mitochondria to lipid droplets.The EMBO journal · 2026Article
- SPEND-hSRS imaging of fumarate uncovers mitochondrial metabolic heterogeneity.bioRxiv : the preprint server for biology · 2026Article
- The expanding role of mitochondria-lipid droplet contacts in liver and their disruption by MASLD.Nature metabolism · 2026Article
- Lipid droplet-mitochondria contact sites as druggable spatial-pharmacology targets in respiratory disease: cross-cell-type mechanisms and translational strategies.Frontiers in cell and developmental biology · 2026Review
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16 authors.
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Abstract
Steatotic liver disease is common, yet the mechanisms by which hepatocytes cope with surges in dietary fatty acids remain unclear. Here we use single-cell tissue imaging (scPhenomics) and spatial proteomics to map lipid handling across dietary states. Fasting remodeled mitochondria and lipid droplets (LDs), increasing mitochondria-LD contacts, whereas contacts were infrequent in Western diet (WD)-fed male mice. Fasting also elevated perilipin-5 (PLIN5), a mediator of mitochondria-LD tethering. PLIN5 overexpression modulated contact formation in a phosphorylation-dependent manner: the S155A variant enhanced organelle contacts and LD expansion, whereas the S155E variant reduced contacts and yielded fewer, smaller LDs. Overexpression of the S155A variant in WD reduced lipotoxicity. These data reveal an adaptive organelle-interaction program that channels lipids during nutrient stress and is attenuated by an obesogenic diet. Our work establishes scPhenomics for spatially resolved cell-state analysis and identifies PLIN5 phosphorylation as a lever to tune hepatocyte lipid flux, suggesting therapeutic potential for targeting mitochondria-LD coupling.
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