荷瘤机体存在的各种免疫功能的异常是机体不能有效排斥肿瘤及肿瘤生物疗法不能充分发挥疗效的主要原因.近年来研究发现,T细胞信号传递途径的改变可能是荷瘤机体免疫功能异常的机制之一.本文综述了荷瘤机体内可能存在的各种涉及T细胞信号传递途径的改变、诱导因素及临床价值.

After murine fetal liver cells (FLC) were transfected with granulocyte-macrophage colony-stimulating factor (GM-CSF) gene by recombinant adenovirus and intrasplenically transplanted into allogeneic mice, the effects of GM-CSF gene-transfected FLC on the recovery of immune response inhibited by chemotherapy were observed. The number of CD4 cells and the ratio of CD4 /CDS cells from peripheral blood lymphocytes increased significantly. The cytotoxicity of the NK cells and the proliferation response of splenocytes to ConA, LPS elevated markedly, but the same results were not from bone marrow. These data demonstrated that intrasplenic transplantation of GM-CSF gene-transfected FLC could effectively accelerate the recovery of immune response after high-dose chemotherapy.

R730.53 R394

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