An ESCRT-dependent step in fatty acid transfer from lipid droplets to mitochondria through VPS13D-TSG101 interactions.
An ESCRT-dependent step in fatty acid transfer from lipid droplets to mitochondria through VPS13D-TSG101 interactions.
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通过 VPS13D 与 TSG101 相互作用,脂肪酸从脂滴转移到线粒体的 ESCRT 依赖性步骤
DOI:
10.1038/s41467-021-21525-5
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发表时间:
2021-02-23
影响因子:
16.6
通讯作者:
Ji WK
中科院分区:
文献类型:
--
作者:
Wang J;Fang N;Xiong J;Du Y;Cao Y;Ji WK
Upon starvation, cells rewire their metabolism, switching from glucose-based metabolism to mitochondrial oxidation of fatty acids, which require the transfer of FAs from lipid droplets (LDs) to mitochondria at mitochondria−LD membrane contact sites (MCSs). However, factors responsible for FA transfer at these MCSs remain uncharacterized. Here, we demonstrate that vacuolar protein sorting-associated protein 13D (VPS13D), loss-of-function mutations of which cause spastic ataxia, coordinates FA trafficking in conjunction with the endosomal sorting complex required for transport (ESCRT) protein tumor susceptibility 101 (TSG101). The VPS13 adaptor-binding domain of VPS13D and TSG101 directly remodels LD membranes in a cooperative manner. The lipid transfer domain of human VPS13D binds glycerophospholipids and FAs in vitro. Depletion of VPS13D, TSG101, or ESCRT-III proteins inhibits FA trafficking from LDs to mitochondria. Our findings suggest that VPS13D mediates the ESCRT-dependent remodeling of LD membranes to facilitate FA transfer at mitochondria-LD contacts. Metabolic rewiring requires the mobilization of fatty acids (FA) from lipid droplets (LDs) at membrane contact sites (MCSs), although the details of FA transfer remain unclear. Here, the authors show that VPS13D and the ESCRT complex remodel LD membranes to promote FA trafficking to mitochondria.
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DOI:
10.1126/science.aad8305
发表时间:
2015-12-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
McCullough J;Clippinger AK;Talledge N;Skowyra ML;Saunders MG;Naismith TV;Colf LA;Afonine P;Arthur C;Sundquist WI;Hanson PI;Frost A
通讯作者:
Frost A
影响因子:
64.5
作者:
Li, LM;Cohen, SN
通讯作者:
Cohen, SN
影响因子:
56.9
作者:
Carlton, Jez G.;Martin-Serrano, Juan
通讯作者:
Martin-Serrano, Juan
影响因子:
11.2
作者:
Gauthier, Julie;Meijer, Inge A.;Campeau, Philippe M.
通讯作者:
Campeau, Philippe M.
影响因子:
9.8
作者:
Kolehmainen, J;Black, GCM;Lehesjoki, AE
通讯作者:
Lehesjoki, AE