Natural killer cells, which are a class of lymphocyte distinct from t cells and B cells, destroy foreign cells (eg, neoplastic cells) even without prior sensitization.

自然杀伤细胞是一类与T细胞和B细胞不同的淋巴细胞，可在未被致敏的情况下破坏外来细胞(如肿瘤细胞)。

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Peripheral t - lymphocyte subsets and NK cells were examined by flow cytometric analysis.

应用流式细胞法检测所有研t淋巴细胞亚群和NK细胞。

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Objective To study the effects of CD3AK cells on T - lymphocyte subsets and their functions on patients with primary liver carcinoma (PLC).

目的探讨CD3AK细胞过继治疗对原发性肝癌（PLC）患者T淋巴细胞亚群及功能活性的影响。

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Pfizer's drug tremelimumab and Bristol-Myers Squibb's ipilimumab are antibodies to a protein called CTLA-4 (cytotoxic T-lymphocyte antigen-4) that acts as an emergency brake to prevent killer T cells from attacking healthy tissue.

FORBES: Targeting Melanoma