Portal hypertension is associated with modulation of regulatory T cells. (April 2016)

• Record Type: Journal Article
• Authors: Adar, Tomer; Edden, Yair; Shteingart, Shimon; Ben Ya'acov, Ami; Mahamid, Mahmud; Broide, Ellen; Shmorak, Shimrit; Bar-Gil Shitrit, Ariella; Reinus, Constantin; Goldin, Eran
• Is Part Of: European journal of inflammation. Volume 14:Number 1(2016)
• Page Start: 40
• Page End: 47
• Publication Date: 2016-04
• Subjects: Interleuklin-17 -- partial portal vein ligation -- portal hypertension -- regulatory T cells; Inflammation -- Periodicals; Anti-Inflammatory Agents -- therapeutic use -- Periodicals; Immunotherapy -- Periodicals; Inflammation -- Periodicals; Anti-inflammatory agents -- Periodicals; Immunotherapy -- Periodicals; Anti-inflammatory agents; Immunotherapy; Inflammation; Periodicals; 616.0473
• DOI: 10.1177/1721727X15622960
• Languages: English
• ISSNs: 1721-727X

Abstract

Background: Portal hypertension is a complication of liver cirrhosis. The portal vein drains the spleen and the intestines, which are both rich in inflammatory mediators. Portal hypertension- induced stress within these organs that may result in pro-inflammatory changes. The association of these changes with regulatory T cells was not addressed before. Aim: Our aim is to investigate the involvement of some subsets of regulatory T cells in portal hypertension. Methods: In the current study we used the partial portal vein ligation model to demonstrate differences in the distribution of regulatory T cells within the portal vein and the inferior vena cava associated with portal hypertension. Results: We show that CD4+CD25+FoxP3+ regulatory T cells are significantly ( P <0.05) increased only in the inferior vena cava of partial portal vein ligation-rats. The development of portal hypertension was associated with the reversal of the distribution patterns in the portal vein and inferior vena cava for both CD4+ and CD8+ cells. We further show that in naïve rats CD4+IL17+ cells were significantly ( P <0.05) and specifically enriched in inferior vena cava compared to the portal vein. Conclusions: These novel findings support the involvement of regulatory T cells in the inflammatory signals accompanied with acute portal hypertension.