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Article Abstract
Dynamin-related protein 1 (Drp1) is a crucial player in mitochondrial fission and liver function. The interactions between mitochondria, endoplasmic reticulum (ER), and lipid droplets (LDs) are fundamental for lipid metabolism. This study utilized liver-specific Drp1 knockout (LiKO) mice to investigate the effects of Drp1 deficiency on organelle interactions, metabolism, and inflammation. Our analysis revealed disrupted interactions between mitochondria and LDs, as well as altered interactions among ER, mitochondria, and LDs in LiKO mice. Through mass spectrometry and microarray analysis, we identified changes in lipid profiles and perturbed expression of lipid metabolism genes in the livers of LiKO mice. Further in vitro experiments using primary hepatocytes from LiKO mice confirmed disturbances in lipid metabolism and increased inflammation. These findings highlight the critical involvement of Drp1 in regulating organelle interactions for efficient lipid metabolism and overall liver health. Targeting Drp1-mediated organelle interactions may offer potential for developing therapies for liver diseases associated with disrupted lipid metabolism.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12109831 | PMC |
| http://dx.doi.org/10.3390/cells14100679 | DOI Listing |
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