Comparison of cytotoxicity mechanism: perhaps umbilical cord blood CD3AK cells kill tumor cells to necrosis mainly, and peripheral blood CD3AK cells induced tumor cells to apoptosis mainly.

• 不同来源的CD3AK细胞对肿瘤细胞株细胞杀伤机制的比较:CB来源的CD3AK细胞可能主要以直接杀伤肿瘤细胞株细胞从而使其发生坏死的方式为主;