根据T淋巴细胞的功能,以前曾将其分为Ts,Th、Tc、Ta及Td等5个亚群。近来根据表面Ig、Fc受体的不同,又把人类T淋巴细胞分为两个亚群:具有IgM Fc受体者称Tμ细胞,具有IgG Fc受体者称Tγ细胞Moretta等报告,人类外周血中多数T淋巴细胞具有IgM Fc受体,少数 According to the function of T lymphocytes, it was divided into five subgroups: Ts, Th, Tc, Ta and Td. According to the recent surface Ig, Fc receptors, human T lymphocytes are again divided into two subgroups: IgM Fc receptor called Tμ cells, with IgG Fc receptor called Tγ cells Moretta and other reports, human peripheral blood Most T lymphocytes have IgM Fc receptors, a few