T细胞缺陷裸小鼠部分肝切除肝再生异常

摘要

目的 利用小鼠70%肝切除模型探讨T细胞在肝再生过程中的调控作用.方法 对T细胞缺陷裸小鼠以及对照小鼠行70%肝切除术,检测小鼠肝质量体质量比、BrdU渗入水平、增殖细胞核抗原(PCNA)和M期标志蛋白p-HDAC3的表达量、血清转氨酶水平.结果 裸鼠肝质量体质量比的恢复明显晚于对照小鼠,BrdU渗入水平以及PCNA和p-HDAC3表达量的高峰出现时间点晚于对照小鼠,但肝损[]伤程度低于对照小鼠.结论 T细胞参与肝再生的调控,T细胞缺陷会延缓肝再生进程.%Objective To investigate the regulation of T cells in the process of liver regeneration using a model of mice after 70% liver resection.Methods We performed 70% hepatectomy in T-cell-deficient mice and control mice.The liver mass and body mass ratio, BrdU infiltration level, proliferating cell nuclear antigen (PCNA),expression of M phase marker protein p-HDAC3, and serum transaminase levels were measured.Results The recovery of liver mass and body mass ratio of thymus-deficient mice occurred significantly later than that of control mice.The peak time of BrdU infiltration levels and the expression of PCNA and p-HDAC3 in T-cell-deficient mice were later than in control mice, but the degree of liver injury was lower.Conclusion T cells are involved in the regulation of liver regeneration, and the absence of T cells delays the process of liver regeneration.