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分别用ＣＤ３、ＣＤ４及ＣＤ８分子作为检测Ｔ细胞表型亚群的指标，以ＩＦＮγ和ＩＬ－４作为检测ＣＤ４Ｔ细胞中Ｔｈ１与Ｔｈ２功能亚群的指标，观察了ｈＣＧ对Ｔ细胞各类亚群的作用。结果证明一定剂量范围内的ｈＣＧ对上述各Ｔ细胞功能亚群均有显著抑制作用。用抗ｈＣＧ各亚单位的单抗封闭ｈＣＧ后作上述试验，证明抗ｈＣＧβ（１０号）及抗完整ｈＣＧ（１７号）单抗可阻断上述抑制作用，而抗ｈＣＧα单抗（４号）则无此作用，阐明了ｈＣＧ分子上参与此抑制作用的表位所在。
CD3, CD4 and CD8 molecules were used as indexes to detect T cell phenotype subtypes respectively, IFNγ and IL-4 were used as indexes to detect Th1 and Th2 functional subsets in CD4 T cells, and the effects of hCG on T lymphocyte subsets effect. The results show that a certain dose range of hCG on the T cell functional subpopulations were significantly inhibited. The above experiments with blocking of hCG with anti-hCG subunit mAb demonstrated that the anti-hCGβ (No. 10) and anti-intact hCG (No. 17) mAb blocked the above inhibition whereas anti-hCGα mAb (No. Without this effect, elucidation of hCG molecules involved in this inhibitory role of the epitope.