Molecular pathways behind acquired obesity: Adipose tissue and skeletal muscle multiomics in monozygotic twin pairs discordant for BMI.
adipose tissue
genome-scale metabolic models
metabolomics
multiomics
obesity
proteomics
skeletal muscle
transcriptomics
twins
Journal
Cell reports. Medicine
ISSN: 2666-3791
Titre abrégé: Cell Rep Med
Pays: United States
ID NLM: 101766894
Informations de publication
Date de publication:
20 04 2021
20 04 2021
Historique:
received:
09
10
2020
revised:
31
12
2020
accepted:
04
03
2021
entrez:
5
5
2021
pubmed:
6
5
2021
medline:
6
5
2021
Statut:
epublish
Résumé
Tissue-specific mechanisms prompting obesity-related development complications in humans remain unclear. We apply multiomics analyses of subcutaneous adipose tissue and skeletal muscle to examine the effects of acquired obesity among 49 BMI-discordant monozygotic twin pairs. Overall, adipose tissue appears to be more affected by excess body weight than skeletal muscle. In heavier co-twins, we observe a transcriptional pattern of downregulated mitochondrial pathways in both tissues and upregulated inflammatory pathways in adipose tissue. In adipose tissue, heavier co-twins exhibit lower creatine levels; in skeletal muscle, glycolysis- and redox stress-related protein and metabolite levels remain higher. Furthermore, metabolomics analyses in both tissues reveal that several proinflammatory lipids are higher and six of the same lipid derivatives are lower in acquired obesity. Finally, in adipose tissue, but not in skeletal muscle, mitochondrial downregulation and upregulated inflammation are associated with a fatty liver, insulin resistance, and dyslipidemia, suggesting that adipose tissue dominates in acquired obesity.
Identifiants
pubmed: 33948567
doi: 10.1016/j.xcrm.2021.100226
pii: S2666-3791(21)00042-2
pmc: PMC8080113
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Twin Study
Langues
eng
Pagination
100226Subventions
Organisme : NHLBI NIH HHS
ID : P01 HL028481
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL095056
Pays : United States
Organisme : NIDDK NIH HHS
ID : U01 DK105561
Pays : United States
Organisme : Howard Hughes Medical Institute
Pays : United States
Informations de copyright
© 2021 The Authors.
Déclaration de conflit d'intérêts
The authors declare no competing interests.
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