They're everywhere in cells throughout your body and they are responsible for lots of the biochemistry of cell/cell interaction and signaling.

它们在身体各处的细胞中都有,并负责很多细胞间的相互作用,及信号转导的生化过程

耶鲁公开课 - 生物医学工程探索课程节选

An example of a drug that works like that is the anti-cancer drug Tamoxifen which binds to estrogen receptors and blocks estrogen signaling.

这种药物的一个例子就是他莫昔芬,这是一种抗癌药,能够与雌激素受体结合,阻断雌激素信号通路

耶鲁公开课 - 生物医学工程探索课程节选

There's lots of these so called signaling proteins that have been identified now.

现在有很多这样的,所谓信号蛋白被发现

耶鲁公开课 - 生物医学工程探索课程节选

These signaling proteins play important roles in determining how many cells differentiate down particular pathways and they turn out also to be very useful for treating diseases of those pathways.

这些信号蛋白在决定特定分化路径上,有多少细胞在分化时起着重要作用,且在治疗疾病方面也很有用,同样也是利用这些机制

耶鲁公开课 - 生物医学工程探索课程节选