尿毒症患者NK1细胞表面受体KIR基因的表达

目的 调查人类自然杀伤(NK)细胞表面免疫球蛋白样受体KIR在尿毒症患者的表达.方法 采用PCR-SSP完成55例尿毒症患者KIR基因分析.结果 尿毒症患者表达16个KIR基因,2DL4、3DL2、3DL3、3DPI基因频率1.00,2DL1、2DL3、3DL1、2DS4基因频率0.73～0.87,2DL2、2DS1、2DS2、2DS3、2DS5基因频率0.11～025,2DL5、3DS1、2DP1基因频率0.30～0.41.对尿毒症患者与部分亚洲地区人群的分布频率比较分析中发现,KIR-2DL4、3DL1、3DL2,3DL3、2DS4(GF 0.73～1.00)和KIR-2DL2、2DL5、2DS1、2DS3、2DS5、3DS1(GF0.11～0.34)与韩国人、日本人、南亚人之间相差＜0.20;KIR-2DL1、2DL3、2DS2与韩国人、日本人、南亚人群之间相差≥0.20,2DL1低于日本人,2DS2低于南亚人,2DL3高于南亚人.结论 55例尿毒症患者普遍带有结构基因2DL4、3DL2、3DL3、3DP1,其次为2DL1、2DL3、3DL1、2DS4,较罕见为2DL2、2DS1、2DS2、2DS3和2DS5;显示尿毒症患者中14个KIR功能基因频率与亚洲其他人群KIR基因频率接近,但是KIR基因多态性与上述不同种族之间存在分布差异.

The frequencies and polymorphism of KIRs gene on the surface of NK cells in uremia patients

Objective To investigate the frequencies and polymorphism of killer cell immunoglobulin-like receptor(KIR) genes on the surface of NK cells in uremia patients. Methods Twenty-three pairs of primers were designed and different KIR genes in 55 random uremia patients were analyzed by PCR-SSP. Results Sixteen genes were observed in uremia patients. The frequencies (GF) of 2DL4,3DL2,3DL3 and 3DP1 were 1.00;GF of 2DL1,2DL3,3DL1,and 2DS4 were 0.73-0.87;GF of 2DL2,2DS1,2DS2,2DS3,and 2DS5 were 0.11-0.25;GF of 2DL5,3...