Chemotherapy drugs are delivered through pills and injections and use " cytotoxic agents, " which means compounds that are toxic to living cells.

化疗药物通过药丸服用或者注射器注射进入体，并要使用“细胞毒剂”——这是一种对活细胞有毒化合物。

In the thymus, these precursor T-cells mature and express either CD4 on helper T-cells or CD8 on cytotoxic T-cells sometimes known as suppressor T cells.

胸腺中，这些前体T细胞后，分化为辅助T细胞细胞表面表达CD4，或分化为细胞毒性T细胞（有被称为抑制T细胞）细胞表面表达CD8。

NK cells kill their target cells by releasing cytotoxic granules in their cytoplasm directly into the target cell.

NK细胞通过释放胞细胞毒颗粒直接进入靶细胞，来杀死靶细胞。

The cytotoxic or the killer T cells.

细胞毒性T细胞，也称为杀手T细胞。

Their role seems to be providing cytotoxic support.

他们作用似乎是提供细胞毒性支持。

This agent of chemical warfare was used to make mustard gas, which had been deployed to deadly effect in World War I. It is a cytotoxic compound, meaning that it is harmful to cells.

这种化学战剂被用来制造芥子气， 该气体一战中曾被使用，造了致命效果。 它是一种细胞毒性化合物，意味着对细胞具有危害性。

They can also be cytotoxic, meaning that they will kill cells of said foreign body.

T细胞们也会产生细胞毒性(Cytotoxic)，将前述外来细胞消灭。

Some T cells (T8 cells) are cytotoxic or killer cells; they act directly on cells bearing antigen (tumor cells and tissue transplanted from an organ donor).

一些T细胞（T 细胞）是细胞毒性或杀伤细胞;它们直接作用于携带抗原细胞（肿瘤细胞和从器官供体移植组织）。

Cytokines are then released, activating cytotoxic T cells which, along with macrophages, destroy infected cells.

随后，细胞因子被释放， 激活了杀伤性T细胞，这些T细胞与巨噬细胞协同作用， 摧毁受感染细胞。

They are well-known, powerful signals that promote NK cell survival, proliferation, making more NK cells, and importantly, their activation and cytotoxic function, their ability to kill target cells.

它们是众所周知强效信号，可促进NK细胞存活和增殖，产生更多NK细胞，并且尤为重要是，能够激活NK细胞并增强其细胞毒性功能，即杀伤靶细胞能力。

The major cell is going to be a type of white blood cell called the cytotoxic T cell.

主要细胞是一种叫做细胞毒性T细胞白细胞。