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

NK通过释放质内毒颗粒直接进入内，来杀死。

But neither radiation nor chemotherapeutic drugs target only cancer cells.

但放疗和化疗破环不单单是癌。

So how do hormones bind to their target cells?

那么激素是如何与结合呢？

Researchers are still developing more precise interventions that only target the intended cancer cells.

研究人员仍在开发更精确施治疗目标癌。

While the therapy targets malignant cells, it also destroys nearby healthy ones.

虽然治疗目是杀死恶性，但它也破坏了附近健康。

So target cells for those kinds of hormones have receptors for them on the outside of their membranes.

所以这些激素在膜外面有受体。

In fact, the researchers found that the modified virus actually targeted the tumor cells.

事实上，研究人员发现经过修饰病毒实际上针对是肿瘤。

Figuring out how to target these stubborn cells might help prevent cancers from coming back.

弄清楚如何向这些顽固可能有助于防止癌症复发。

A new technique to generate local, fast, and targeted cell signalling and live cells.

一种产生局部、快速和向信号和活新技术。

This type of medicine allows the nanobots to precisely target cancer cells, while leaving healthy cells intact.

这种药物使纳米机器人能够精确地瞄准癌，同时保持健康完好无损。

Once rhinovirus has been introduced to the respiratory mucosa, it targets cell surface receptors expressed at the surface of nasal epithelial cells.

一旦鼻病毒被进入呼吸道粘膜，它目标是在鼻上皮表面表达表面受体。

There are also target cells, which are small RBCs that look like bullseyes due to scrunching up of the excess cell membrane.

也可见形红（由于多余膜皱缩而看起来像心小红）。

Like steroids, thyroid hormone is lipid-soluble, so it crosses the membrane of its target cell to bind inside the nucleus.

像类固醇一样，甲状腺激素是脂溶性，所以它穿过膜与核结合。

Hormones activate target cells by one of two methods, depending upon the chemical nature of the hormone.

根据激素化学性质，激素通过两种方法之一激活。

So we get this nice technique to generate local, fast, and targeted cell signalling and live cells.

因此, 我们得到了这种很好技术来产生本地, 快速和有针对性信号和活。

ACTH, then, travels to the pair of adrenal glands, on top of each kidney, where it specifically targets cells in the adrenal cortex.

ACTH之后被运输到位于两个肾上方肾上腺，在此专门针对肾上腺皮质。

From there, each hormone needs to locate a set of target cells in order to bring about a specific change.

从那里开始，每种激素都需要定位一组目标才能带来特定变化。

Lipid-soluble hormones (steroid hormones and hormones of the thyroid gland) diffuse through the cell membranes of target cells.

脂溶性激素(类固醇激素和甲状腺激素)经扩散通过膜。

Firstly, by combining them with an anti-cancer drug which can then accurately locate and target only the cancer cells, or avoiding the healthy cells.

首先，将它们与抗癌药物结合，然后可以准确定位和向癌，避开健康。

A hormone is a chemical messenger produced by a cell that effects specific change in the cellular activity of target cells.

激素是产生一种化学信使，它能引起活动特定变化。