Abstract: The CD28 family receptors include the CD28, ICOS (inducible co-stimulator), CTLA-4 (cytotoxic T-lymphocyte antigen-4), PD-1 (programmed cell death protein 1), and BTLA (B- and T-lymphocyte attenuator) molecules.它们表征了一组类似于通过调节T细胞活性来控制免疫反应的免疫球蛋白类似的分子。Among the family members, CD28 and ICOS act as enhancers of T-cell activity, while three others—BTLA, CTLA-4, and PD-1—function as suppressors.CD28家族的受体与B7配体家族相互作用。The cooperation between these molecules is essential for controlling the course of the adaptive response, but it also significantly impacts the development of immune-related diseases.本综述将读者介绍了CD28家族受体功能及其对T细胞活性的影响的分子基础。
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