ArticleInternational journal of obesity (2005)2014
Levels of 4-1BB transcripts and soluble 4-1BB protein are elevated in the adipose tissue of human obese subjects and are associated with inflammatory and metabolic parameters.
Article in International journal of obesity (2005), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 20 citations in OpenAlex.
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Authors and funding
14 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background4-1BB, a member of the TNF receptor superfamily, has a role in various inflammatory pathologies through its interaction with 4-1BB ligand. We previously demonstrated that it participates in initiating and promoting obesity-induced adipose inflammation in a rodent model.
objectiveIn this study, we examined whether 4-1BB is related to obesity-induced adipose inflammation and metabolic parameters in humans.
methodsA total of 50 subjects, 25 obese (body mass index (BMI)≥25 kg m(-2)) and 25 lean (BMI<23 kg m(-2)) participated in the study. The levels of 4-1BB transcripts and soluble 4-1BB protein (s4-1BB) in subcutaneous adipose tissue were measured by quantitative real-time PCR and enzyme-linked immunosorbent assay, respectively. Inflammatory and metabolic parameters were measured by enzymatic analysis and immunoassay.
resultsObese subjects had higher levels of both 4-1BB transcripts and s4-1BB protein in subcutaneous adipose tissue than lean controls, and the levels were correlated with BMI and the expression of inflammatory markers, as well as with serum metabolic parameters. Moreover, s4-1BB was released from human adipocytes, and elicited chemotactic responses from human monocytes/T cells as well as enhancing their inflammatory activity, indicating that it may promote human adipose inflammation. DISCUSSION: Our data demonstrate that elevated levels of 4-1BB transcripts and s4-1BB in adipose tissue are closely associated with obesity-induced inflammation and metabolic dysregulation. They suggest that both 4-1BB transcripts and s4-1BB could serve as novel biomarkers and/or therapeutic targets for obesity-induced inflammation and metabolic syndrome in humans.
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