妇科恶性肿瘤放射治疗反应及并发症处理

放射治疗在杀死肿瘤细胞的同时，对肿瘤周围器官的细胞和组织也有杀伤作用，从而引起近期放疗反应和远期并发症。     

特发性血小板减少性紫癜NK细胞的变化及意义

应用流式细胞仪（ｆｌｏｗｃｙｔｏｍｅｔｒｙ，ＦＣＭ）结合单克隆抗体ＣＤ１６检测了１５例特发性血小板减少性紫癜（ＩＴＰ）发病初期外周血中天然杀伤细胞（ＮＫ）的数量，结果显示：未经治疗的ＩＴＰ患者外周血中ＮＤ细胞数量呈下降趋势，与对照组相比有统计学意义（Ｐ＜０．０５）     

CD3AK治疗慢性乙型肝炎

慢性乙型肝炎在我国发病率极高，相当一部分患者会成为肝硬变，甚至肝细胞癌。干扰索的疗效也仅为30％～40％，且其费用昂贵，还有一定的副作用。有必要寻求有效、低费用和副作用小的免疫调节治疗。自1993年7月至1995年2月我们试用抗CD3抗体的活化的杀伤细胞(CD3AK)治疗慢性乙型肝炎17例，取得了较好的近期疗效，现报告如下。     

供者表达活化性杀伤细胞免疫球蛋白样受体对造血干细胞移植预后的影响

目的 观察供者表达活化性杀伤细胞免疫球蛋白样受体（aKIR）对受者造血干细胞移植（HSCT）预后的影响。方法 1996年至2001年共行亲缘性人类白细胞抗原（HLA）全相合骨髓移植59例，以序列特异性引物多聚酶链反应法（SSP-PCR）检测供者aKIR的表型。分析供者表达aKIR对受者移植后病毒、细菌和真菌感染及出血、复发、存活情况的影响。结果 供者表达aKIR与受者移植后出血、病毒及细菌感染发生的概率无明显相关性；当供者表达KIR3DS1表型时，发生真菌感染概率增高（X^4．804，P=0．028）。供者表达aKIR对受者HSCT后存活率和白血病复发率均无明显影响。结论 亲缘性HLA全相合HSCT中，供者表达aKIR并不能改善受者的移植效果。     

NK／LAK细胞对人口腔癌耐细胞药株杀伤活性的观察

OBJECTIVE: To understand the relation between cytotoxic activity of immunologic effector cells and multidrug resistance of the tumor cells. METHODS: Continuous observation of the morphological changes and MTT colorimetry were employed to evaluate the cytotoxic activity of lymphokine-activated killer (LAK) cells and natural killer (NK) cells against multidrug-resistant (MDR) human oral carcinoma cell line-KBV200 (before and after reversal of MDR) and parental drug-sensitive cell line KB. The morphologic changes of LAK cells and the 3 target cell lines were observed continuously under inverted microscope 3 h after co-culture of LAK cells with one of three target cell lines respectively. The lysis rates of three tumor cell lines in response to co-culture with LAK or NK cells were determined using MTT colorimetry. RESULTS: In comparison with the parental drug-sensitive cell line KB, both KBV200 and its reserved cell line by verapamil (KBVV) showed earlier adherence and greater number of cells lysed by LAK. In MTT colorimetry assay, the cytotoxicity of both LAK and NK cells against the 3 cell lines was associated with the effector-to-target (E/T) cell ratio; the lysis rates of KBV200 and reversed KBV200 cells by verapamil in response to LAK and NK cells were higher than that of KB cells (P<0.05), but KBV200 and KBVV did not significantly differ (P>0.05). At the same E/T ratio, LAK cells possessed stronger cytotoxicity than NK cells against all the tumor cell lines (P<0.05). CONCLUSIONS: Immunologic effector cells possess strong cytotoxic activity against multidrug-resistant cell line KBV200. Modulation of MDR does not decrease the cytotoxic activity of the immunologic effector cells. The results of this study suggest that adoptive cell immunotherapy with immunologic effector cells may be of value in controlling the progress of MDR tumors.     

NK细胞与肿瘤的关系

ＮＫ细胞是一种自然细胞毒杀伤细胞，在肿瘤免疫调节中起着重要作用，可作为监测肿瘤免疫功能的指标。本文就ＮＫ细胞在妇科肿保的进展作了综述。