恶性黑素瘤患者T细胞化学趋化功能

目的　探讨恶性黑素瘤患者循环T细胞在体外对单核细胞化学趋化蛋白 1 (MCP 1 )的化学趋化功能及其与肿瘤浸润淋巴细胞 (TIL)及与肿瘤转移之间的关系。方法　用微量化学趋化装置和免疫组化方法测定患者T细胞对MCP 1的化学趋化功能和TIL计数。结果　原发性和转移性黑素瘤患者T细胞对MCP 1的化学趋化功能均明显低下 ,而基底细胞癌患者T细胞的化学趋化功能正常。免疫组化研究发现原发性恶性黑素瘤TIL数量与T细胞的化学趋化功能之间无关。结论　原发性和转移性恶性黑素瘤患者循环T细胞特异性地对MCP 1的化学趋化反应低下。这可能是由于这些细胞上的MCP 1受体表达或调节异常所致

T Cell Chemotactic Response in Patients with Primary and Metastatic Malignant Melanoma

Objective To address the question whether circulating T cells from the patients with primary and metastatic malignant melanoma show altered chemotaxis to monocyte chemotactic protein 1 (MCP 1) and its relation to tumor infiltrating lymphocyte (TIL) and metastasis. Methods Chemotactic responsiveness of T cells towards MCP 1 and immuno histochemistry study were investigated in patients with primary and metastatic melanoma compared to patients with basal cell carcinoma and healthy persons. Results T cells from primary and metastatic melanoma patients showed a significantly decreased chemotactic migration towards MCP 1 and that T cells from patients with basal cell carcinoma showed normal chemotactic response. Immuno histochemistry study showed that there was no correlation between the density of TIL and the decreased chemotaxis of circulating T cells to MCP 1 in patients with primary melanoma. Conclusion Circulating T cells from patients with primary and metastatic malignant melanoma show a MCP 1 specific decrease in chemotactic migration, this may be due to abnormal expression or modulation of MCP 1 receptor on these cells.