近年来,在以下四个方面的研究已取得进展:(1)通过细胞表面标记,建立了体外鉴定人T淋巴细胞的方法;(2)依靠细胞表面标记,建立了一些新技术可分离到高纯度的人T淋巴细胞亚群;(3)已建立了体外技术,可用于区别分离到的T淋巴细胞群与其它细胞(即B细胞、裸细胞和巨噬细 In recent years, progress has been made in the following four aspects: (1) The method of identifying human T lymphocytes in vitro by cell surface markers; (2) relying on cell surface markers, establishing new technologies to separate high purity Of human T lymphocyte subsets; and (3) in vitro techniques have been established that can be used to distinguish the isolated T lymphocyte population from other cells (ie, B cells, nude cells and macrophages