Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz

Logo MUG-Forschungsportal

Gewählte Publikation:

SHR Neuro Krebs Kardio Lipid Stoffw Microb

Wolf, D; Jehle, F; Michel, NA; Bukosza, EN; Rivera, J; Chen, YC; Hoppe, N; Dufner, B; Rodriguez, AO; Colberg, C; Nieto, L; Rupprecht, B; Wiedemann, A; Schulte, L; Peikert, A; Bassler, N; Lozhkin, A; Hergeth, SP; Stachon, P; Hilgendorf, I; Willecke, F; von Zur Mühlen, C; von Elverfeldt, D; Binder, CJ; Aichele, P; Varo, N; Febbraio, MA; Libby, P; Bode, C; Peter, K; Zirlik, A.
Coinhibitory suppression of T cell activation by CD40 protects against obesity and adipose tissue inflammation in mice.
Circulation. 2014; 129(23):2414-2425 Doi: 10.1161/CIRCULATIONAHA.113.008055 [OPEN ACCESS]
Web of Science PubMed FullText FullText_MUG


Co-Autor*innen der Med Uni Graz
Anto Michel Nathaly
Zirlik Andreas

Dimensions Citations:

Plum Analytics:

Scite (citation analytics):

Costimulatory cascades such as the CD40L-CD40 dyad enhance immune cell activation and inflammation during atherosclerosis. Here, we tested the hypothesis that CD40 directly modulates traits of the metabolic syndrome in diet-induced obesity in mice. To induce the metabolic syndrome, wild-type or CD40(-/-) mice consumed a high-fat diet for 20 weeks. Unexpectedly, CD40(-/-) mice exhibited increased weight gain, impaired insulin secretion, augmented accumulation of inflammatory cells in adipose tissue, and enhanced proinflammatory gene expression. This proinflammatory and adverse metabolic phenotype could be transplanted into wild-type mice by reconstitution with CD40-deficient lymphocytes, indicating a major role for CD40 in T or B cells in this context. Conversely, therapeutic activation of CD40 signaling by the stimulating antibody FGK45 abolished further weight gain during the study, lowered glucose levels, improved insulin sensitivity, and suppressed adipose tissue inflammation. Mechanistically, CD40 activation decreased the expression of proinflammatory cytokines in T cells but not in B cells or macrophages. Finally, repopulation of lymphocyte-free Rag1(-/-) mice with CD40(-/-) T cells provoked dysmetabolism and inflammation, corroborating a protective role of CD40 on T cells in the metabolic syndrome. Finally, levels of soluble CD40 showed a positive association with obesity in humans, suggesting clinical relevance of our findings. We present the surprising finding that CD40 deficiency on T cells aggravates whereas activation of CD40 signaling improves adipose tissue inflammation and its metabolic complications. Therefore, positive modulation of the CD40 pathway might describe a novel therapeutic concept against cardiometabolic disease. © 2014 American Heart Association, Inc.
Find related publications in this database (using NLM MeSH Indexing)
Adipocytes - immunology
Adipocytes - metabolism
Adipose Tissue - immunology
Adoptive Transfer -
Animals -
Atherosclerosis - genetics
Atherosclerosis - immunology
Atherosclerosis - metabolism
CD40 Antigens - genetics
CD40 Antigens - immunology
CD40 Ligand - immunology
CD40 Ligand - metabolism
Humans -
Inflammation - genetics
Inflammation - immunology
Inflammation - metabolism
Insulin Resistance - genetics
Insulin Resistance - immunology
Lymphocyte Activation - immunology
Male -
Metabolic Syndrome - genetics
Metabolic Syndrome - immunology
Metabolic Syndrome - metabolism
Mice -
Mice, Inbred C57BL -
Mice, Knockout -
Obesity - genetics
Obesity - immunology
Obesity - metabolism
Signal Transduction - immunology
T-Lymphocytes - immunology
T-Lymphocytes - metabolism

Find related publications in this database (Keywords)
adipose tissue
CD40 ligand
costimulatory and inhibitory T-cell receptors
© Med Uni Graz Impressum