CD4+RORγt++ and Tregs in a Mouse Model of Diet-Induced Nonalcoholic Steatohepatitis
| Autor: | Luisa Vonghia, Nathalie Ruyssers, Dorien Schrijvers, Paul Pelckmans, Peter Michielsen, Luc De Clerck, Albert Ramon, Emilio Jirillo, Didier Ebo, Benedicte De Winter, Chris Bridts, Sven Francque |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Mediators of Inflammation, Vol 2015 (2015) |
| Druh dokumentu: | article |
| ISSN: | 0962-9351 1466-1861 |
| DOI: | 10.1155/2015/239623 |
| Popis: | Background and Aims. Inflammatory mediators that cross-talk in different metabolically active organs are thought to play a crucial role in the pathogenesis of Nonalcoholic Steatohepatitis (NASH). This study was aimed at investigating the CD4+RORγt+ T-helper cells and their counterpart, the CD4+CD25+FOXP3+ regulatory T cells in the liver, subcutaneous adipose tissue (SAT), and abdominal adipose tissue (AAT) in a high fat diet (HFD) mouse model. Methods. C57BL6 mice were fed a HFD or a normal diet (ND). Liver enzymes, metabolic parameters, and liver histology were assessed. The expression of CD4+RORγt+ cells and regulatory T cells in different organs (blood, liver, AAT, and SAT) were analyzed by flow cytometry. Cytokine and adipokine tissue expression were studied by RT-PCR. Results. Mice fed a HFD developed NASH and metabolic alterations compared to normal diet. CD4+RORγt++ cells were significantly increased in the liver and the AAT while an increase of regulatory T cells was observed in the SAT of mice fed HFD compared to ND. Inflammatory cytokines were also upregulated. Conclusions. CD4+RORγt++ cells and regulatory T cells are altered in NASH with a site-specific pattern and correlate with the severity of the disease. These site-specific differences are associated with increased cytokine expression. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|