This is, maybe, the strangest because the ligand that stimulates the receptor is produced by the cell itself; so sometimes cells make signals that they receive.

它可能是最奇特的,因为激活受体的配体,是由细胞自身产生的,有时细胞产生让自己接受的信号

耶鲁公开课 - 生物医学工程探索课程节选

For example, HIV enters cells of the immune system by binding to a receptor called CD4.

比如,HIV通过与CD4的受体结合,进入到免疫系统细胞中

耶鲁公开课 - 生物医学工程探索课程节选

Immune cells recognize it, and they recognize it by a very special form of receptor-ligand interaction where the ligand is MHC1 with the foreign antigen and the receptor is a receptor called the T-cell receptor complex.

免疫细胞识别出染病细胞,通过一种特殊形式的,受体配体协作机制识别出来,其中的配体是同,外源抗原共同出现的MHC1,而这其中受体是T细胞受体复合体

耶鲁公开课 - 生物医学工程探索课程节选