摘要
目的观察应用荧光原位杂交技术（FISH）研究细胞因子诱导的杀伤细胞（CIK）在性别错配的女性受者体内生存时间。方法通过细胞采集仪采集男性供者的单个核细胞，经多种细胞因子体外诱导培养成CIK细胞，输注给女性受者。治疗数月后，用Y染色体特异性DNA探针测定女性受者体内淋巴细胞上Y染色体的表达。结果流式细胞仪检测第14天时CIK细胞高表达CD3^＋CD56^＋为55．4％。CSPX探针定位于Xp11．1-q11．1，杂交信号为绿色，CSPY探针定位于Yp11．1-q11．1，杂交信号为红色，女性细胞染色体XX显示两个绿色荧光信号，男性细胞染色体XY显示1个绿色信号，1个红色荧光信号。在女性受者体内淋巴细胞上有Y染色体的表达，表达比例为0．5％～3．0％。结论Y染色体特异性DNA探针可以确定CIK细胞在患者体内的生存时间。
Objective To observe the survival time of cytokine-indueed killer cells （CIK） in vivo in gender-mismatched female recipients by using fluorescence in situ hybridization （FISH）. Methods Mononuelear cells of male donors were collected with cell collection device, and induced into CIK cells by several kinds of eytokines in vitro, and then were infused to the female recipients. Several months after CIK treatment, the expression of Y chromosome in lymphocytes of the female recipients was detected by using Y chromosome specific DNA probes. Results CIK cells were highly expressed after 14 days, and CD3^＋CD56^＋ was 55.4% by flow cytometry. CSP X probe was located at Xpl 1.1-q11.1, and the hybridization signal was green; CSP Y probe was located at Yp11. 1-qll. 1, and the hybridization signal was red. Female cell chromosome was XX, showing two green fluorescent signals; Male cell chromosome was XY, showing one green fluorescent signal and one red fluorescent signal. Y chromosome was expressed in the lymphocytes of the female recipients, and the expression rate was 0. 5% to 3.0%. Conclusion The survival time of CIK cells in vivo can be determined by using Y chromosome specific DNA probes.
出处
《中华实验外科杂志》
CAS
CSCD
北大核心
2011年第11期1983-1985,共3页
Chinese Journal of Experimental Surgery
基金
国家自然科学基金资助项目（81171653,30972703）
江苏省卫生厅医学科技发展基金资助项目（P200932、P200933）
“六大人才高峰”资金资助项目（BRA2010037）
关键词
荧光原位杂交
细胞因子诱导的杀伤细胞
生存时间
Fluorescence in situ hybridization
Cytokine-induced killer cells
Survival time
