Year 2019 / Volume 111 / Number 2
Original
Intestinal IgA positive lymphocytes in acute liver necrosis decrease due to lymphocyte homing disturbance and apoptosis

101-105

DOI: 10.17235/reed.2018.5656/2018

Jinlong Fu, Guodong Li, Jianliang Wu, Zhiyong Wang,

Abstract
Aim: the number of intestinal IgA+ lymphocytes are decreased in acute liver necrosis and the mechanism remains poorly understood. The purpose of this study was to observe the role of lymphocyte homing and apoptosis associated with decreased intestinal IgA positive lymphocytes in acute liver necrosis. Methods: the acute liver necrosis mouse model and LTβR pre-treatment were used to assess intestinal mucosal addressin cell adhesion molecule-1 (MAdCAM - 1) expression, cell apoptosis, IgA+ cells and secretory immunoglobulin A (SIgA). Results: MAdCAM – 1 mRNA and protein expression decreased significantly in the acute necrosis group; 0.57 ± 0.032 fold vs. baseline (p < 0.05) and 0.45 ± 0.072 fold vs. baseline (p < 0.05), respectively. LTβR pre-treatment could significantly improve the decline of MAdCAM – 1 mRNA and protein expression in the intestinal mucosa (1.83 ± 0.064 fold vs. baseline, p < 0.05 and 1.75 ± 0.046 fold vs. baseline, p < 0.05, respectively) and partially restore the decline in IgA+ lymphocytes and SIgA levels. There were increased rates of enterocyte apoptosis in both the acute liver necrosis and LTβR pre-treatment group; 0.79% vs. control (p < 0.05) and 0.77% vs. control (p < 0.05), respectively). Conclusion: our results suggest that the dysfunction of lymphocyte homing and apoptosis are both involved with decreased intestinal IgA+ lymphocytes in acute liver necrosis. LTβR pre-treatment can partially restore IgA+ cells and SIgA by increasing MAdCAM – 1 expression, rather than inhibiting lymphocyte apoptosis.
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Fu J, Li G, Wu J, Wang Z. Intestinal IgA positive lymphocytes in acute liver necrosis decrease due to lymphocyte homing disturbance and apoptosis. 5656/2018


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Publication history

Received: 15/04/2018

Accepted: 26/08/2018

Online First: 15/10/2018

Published: 01/02/2019

Article revision time: 121 days

Article Online First time: 183 days

Article editing time: 292 days


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