What insulin is doing inside your body is acting as a ligand for insulin receptors which stimulate certain kinds of cellular responses.

胰岛素在体内的功能就是作为,胰岛素受体的配体,刺激产生某种细胞效应

耶鲁公开课 - 生物医学工程探索课程节选

Much of the work that pharmaceutical companies do in terms of searching for drugs is searching for new ligands that activate receptors and create biological responses inside cells.

很多制药公司新药筛选工作的主要内容,就是寻找能够激活受体的,新型配体,并在细胞内部产生某种生物学效应

耶鲁公开课 - 生物医学工程探索课程节选