耗竭T细胞(exhausted T cell,Tex)的特征是细胞表面抑制性标记物表达增加,T细胞转录特点随之发生变化,进而表现为进行性和层次性免疫功能丧失。CD4^(+)T细胞在慢性感染或肿瘤环境下,会对其他浸润免疫细胞产生影响,参与肿瘤的病理进展和...耗竭T细胞(exhausted T cell,Tex)的特征是细胞表面抑制性标记物表达增加,T细胞转录特点随之发生变化,进而表现为进行性和层次性免疫功能丧失。CD4^(+)T细胞在慢性感染或肿瘤环境下,会对其他浸润免疫细胞产生影响,参与肿瘤的病理进展和转归。研究表明,CD4^(+)T细胞在肿瘤微环境中会发生耗竭现象,这种耗竭现象可能与肿瘤的临床治疗效果直接相关。文章主要综述肿瘤中CD4^(+)Tex免疫学特点及免疫学功能,以期为肿瘤治疗提供新的靶点。展开更多
Objective To determine the length of warm ischemic ( WI) tolerance in bronchial graft from non - heart - beating donors. Methods Forty - eight rats were randomly divided into 4 groups ( each group having 12 rats) acco...Objective To determine the length of warm ischemic ( WI) tolerance in bronchial graft from non - heart - beating donors. Methods Forty - eight rats were randomly divided into 4 groups ( each group having 12 rats) according to different WI durations including WI - 0 min ( group A) ,WI - 30 min ( group B) ,WI - 45展开更多
文摘耗竭T细胞(exhausted T cell,Tex)的特征是细胞表面抑制性标记物表达增加,T细胞转录特点随之发生变化,进而表现为进行性和层次性免疫功能丧失。CD4^(+)T细胞在慢性感染或肿瘤环境下,会对其他浸润免疫细胞产生影响,参与肿瘤的病理进展和转归。研究表明,CD4^(+)T细胞在肿瘤微环境中会发生耗竭现象,这种耗竭现象可能与肿瘤的临床治疗效果直接相关。文章主要综述肿瘤中CD4^(+)Tex免疫学特点及免疫学功能,以期为肿瘤治疗提供新的靶点。
文摘Objective To determine the length of warm ischemic ( WI) tolerance in bronchial graft from non - heart - beating donors. Methods Forty - eight rats were randomly divided into 4 groups ( each group having 12 rats) according to different WI durations including WI - 0 min ( group A) ,WI - 30 min ( group B) ,WI - 45