To explore the role of cxcr4 expression on cd4 t cells as an additional marker for monitoring hiv infection in clinical practice 研究cxcr4的表现模式对cd4 t细胞的作用，作为临监察爱滋病病毒感染的另一标志。
Objective thymus is the body ' s immunity central apparatus , it has important effect on t cell ' s growth , polarization and maturation 目的胸腺是人体的免疫中枢器官，它在t细胞的发育、分化和成熟中起重要作用。
Seen in this way , a group of white blood cells called t cells are the frontline soldiers of immune defense , engaging inading pathogens head on 从这点看，一组称为t细胞的血细胞处在免疫防线的第一线，防止病原体入侵。
Seen in this way , a group of white blood cells called t cells are the frontline soldiers of immune defense , engaging invading pathogens head on 从这点看，一组称为t细胞的血细胞处在免疫防线的第一线，防止病原体入侵。
These inhibitors secreted into supernatants could inhibit lps - induced proliferation of b cells and pha - induced proliferation of t cells and allogeneic mlr 肿瘤局部分泌的抑制性因子能够抑制b细胞，甚至是t细胞的功能。
If the t cells also receive other indications of trouble , they will deduce that the cells are infected and will orchestrate an attack on them 如果t细胞同时也接收到身体有状况的指示，它们将判定这些细胞受到感染，而发动攻击。
Recently , accumulating evidences have shown that regulatory t cells play a key role both in maintenance of self tolerance and tolerance to allograft 近年来，调节性t细胞在自身耐受和抑制同种异体排斥反应中的作用受到越来越多的重视。
