Only in recent years, attentions have been drawn to the significance of expressing killer cell inhibitory receptors (KIR) in T cells KIRs specifically bind to the corresponding region of the MHC class I molecules and ...Only in recent years, attentions have been drawn to the significance of expressing killer cell inhibitory receptors (KIR) in T cells KIRs specifically bind to the corresponding region of the MHC class I molecules and transmit negative signals to prevent cytotoxity of T cells. When the ligands of KIRs are missing, the lysis of the target cells can’t be avoided. Perhaps the existence of KIRs is the main mechanism for preventing T cells from attacking autologous tissues. The recognition mechanism of the interaction between the KIR + donor T cells and the recipient’s MHC class I molecule expressing tissue cells might shed light on the establishment of the immunotolerance for the prevention of allo-graft rejection and graft-versus-host disease.展开更多
目的:通过研究扶正(益气养阴方)、祛邪(清热解毒方)、扶正祛邪(益气养阴解毒方)三种治则对非小细胞肺癌患者调节性T细胞(Regulatory T cell,Treg)、髓源抑制细胞(Myeloid-derived suppressor cells,MDSC)免疫指标的作用,探究不同治则对...目的:通过研究扶正(益气养阴方)、祛邪(清热解毒方)、扶正祛邪(益气养阴解毒方)三种治则对非小细胞肺癌患者调节性T细胞(Regulatory T cell,Treg)、髓源抑制细胞(Myeloid-derived suppressor cells,MDSC)免疫指标的作用,探究不同治则对非小细胞肺癌患者的免疫功能的影响。方法:采用完全随机、平行对照的实验设计,将166例非小细胞肺癌患者按照随机数字表纳入研究,完成益气养阴方组(A组)39例、清热解毒方组(B组)46例、益气养阴解毒方组(C组)49例,分别给予相应的中药汤剂,4周为一个疗程,治疗3个疗程(12周)后观察对Treg和MDSC的影响。结果:治疗前非小细胞肺癌患者外周血Treg、MDSC水平明显高于健康人群组,具有统计学意义(P<0.001)。治疗后,B组和C组能够显著降低肺癌患者的Treg、MDSC,改善机体免疫功能(P<0.05)。治疗后,A组对非小细胞肺癌患者外周血Treg、MDSC无显著调节作用(P>0.05)。治疗后,三组之间比较,B组对降低非小细胞肺癌患者的Treg、MDSC水平更有优势。结论:祛邪和扶正祛邪治则均可调控肺癌患者的免疫功能,而祛邪治则在抑制MDSC和Treg方面作用更强。展开更多
基金国家自然科学基金资助项目 (No .30 1 70 395)中国博士后科学基金资助项目 (No .2 0 0 1 - 2 9)
文摘Only in recent years, attentions have been drawn to the significance of expressing killer cell inhibitory receptors (KIR) in T cells KIRs specifically bind to the corresponding region of the MHC class I molecules and transmit negative signals to prevent cytotoxity of T cells. When the ligands of KIRs are missing, the lysis of the target cells can’t be avoided. Perhaps the existence of KIRs is the main mechanism for preventing T cells from attacking autologous tissues. The recognition mechanism of the interaction between the KIR + donor T cells and the recipient’s MHC class I molecule expressing tissue cells might shed light on the establishment of the immunotolerance for the prevention of allo-graft rejection and graft-versus-host disease.
文摘目的:通过研究扶正(益气养阴方)、祛邪(清热解毒方)、扶正祛邪(益气养阴解毒方)三种治则对非小细胞肺癌患者调节性T细胞(Regulatory T cell,Treg)、髓源抑制细胞(Myeloid-derived suppressor cells,MDSC)免疫指标的作用,探究不同治则对非小细胞肺癌患者的免疫功能的影响。方法:采用完全随机、平行对照的实验设计,将166例非小细胞肺癌患者按照随机数字表纳入研究,完成益气养阴方组(A组)39例、清热解毒方组(B组)46例、益气养阴解毒方组(C组)49例,分别给予相应的中药汤剂,4周为一个疗程,治疗3个疗程(12周)后观察对Treg和MDSC的影响。结果:治疗前非小细胞肺癌患者外周血Treg、MDSC水平明显高于健康人群组,具有统计学意义(P<0.001)。治疗后,B组和C组能够显著降低肺癌患者的Treg、MDSC,改善机体免疫功能(P<0.05)。治疗后,A组对非小细胞肺癌患者外周血Treg、MDSC无显著调节作用(P>0.05)。治疗后,三组之间比较,B组对降低非小细胞肺癌患者的Treg、MDSC水平更有优势。结论:祛邪和扶正祛邪治则均可调控肺癌患者的免疫功能,而祛邪治则在抑制MDSC和Treg方面作用更强。
