本文报道用~3H-TdR掺入法测定小鼠胸腺细胞及其亚群在有丝分裂原作用下的淋转反应,以及猪胸腹素对带瘤机体免疫功能的影响.实验结果表明,带瘤小鼠胸腺细胞的淋转反应随着瘤龄的增长而逐渐降低.在体外用猪胸腺素与胸腺细胞一起温育,淋转反应有不同程度提高,如先给小鼠腹腔注射猪胸腺素则淋转反应的效果更为显著,说明猪胸腺素对带瘤机体的免疫功能具有积极的调节作用. In this paper, the 3H-TdR incorporation method was used to determine the lymphocyte reaction of mouse thymocytes and their subpopulations under the action of mitogen, and the effect of porcine pleural pesotropin on the immune function of tumor-bearing mice. The experimental results showed that the tumor was small. The lymphocyte reaction of mouse thymocytes gradually decreased with the age of the tumor. In vitro, porcine thymosin and thymocytes were incubated together to increase the degree of lymphocyte reaction. For example, the first injection of porcine thymosin to the mice was performed. The effect of the transfer reaction was more significant, indicating that porcine thymosin has a positive regulatory effect on the immune function of the tumor-bearing organism.