问题
单项选择题
肿瘤细胞逃避机体免疫监视的机制不包括
A．肿瘤细胞的免疫原性弱及抗原调变
B．CTL杀伤肿瘤细胞受MHC限制
C．细胞MHCI类分子表达低下或缺失
D．细胞缺乏协同刺激分子
E．肿瘤细胞分泌免疫抑制因子
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
肿瘤细胞逃避机体免疫监视的机制不包括
A．肿瘤细胞的免疫原性弱及抗原调变
B．CTL杀伤肿瘤细胞受MHC限制
C．细胞MHCI类分子表达低下或缺失
D．细胞缺乏协同刺激分子
E．肿瘤细胞分泌免疫抑制因子
参考答案：B
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