Mitochondrial lipidomes are tissue specific - low cholesterol contents relate to UCP1 activity.
Journal
Life science alliance
ISSN: 2575-1077
Titre abrégé: Life Sci Alliance
Pays: United States
ID NLM: 101728869
Informations de publication
Date de publication:
Aug 2024
Aug 2024
Historique:
received:
17
05
2024
revised:
24
05
2024
accepted:
27
05
2024
medline:
7
6
2024
pubmed:
7
6
2024
entrez:
6
6
2024
Statut:
epublish
Résumé
Lipid composition is conserved within sub-cellular compartments to maintain cell function. Lipidomic analyses of liver, muscle, white and brown adipose tissue (BAT) mitochondria revealed substantial differences in their glycerophospholipid (GPL) and free cholesterol (FC) contents. The GPL to FC ratio was 50-fold higher in brown than white adipose tissue mitochondria. Their purity was verified by comparison of proteomes with ER and mitochondria-associated membranes. A lipid signature containing PC and FC, calculated from the lipidomic profiles, allowed differentiation of mitochondria from BAT of mice housed at different temperatures. Elevating FC in BAT mitochondria prevented uncoupling protein (UCP) 1 function, whereas increasing GPL boosted it. Similarly,
Identifiants
pubmed: 38843936
pii: 7/8/e202402828
doi: 10.26508/lsa.202402828
pii:
doi:
Substances chimiques
Uncoupling Protein 1
0
Cholesterol
97C5T2UQ7J
Ucp1 protein, mouse
0
Glycerophospholipids
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2024 Brunner et al.