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癌基因K-ras、H-ras、c-myc和nm 23mRNA在胃癌组织中的表达及意义

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摘要 应用原位分子杂交技术检测88例胃癌组织中K-ras、H-ras、c-myc和肿瘤转移抑制基因nm 23-H_1mRNA.其阳性结果分别为78.4%、70%、58%和36.3%;胃癌旁移行区正常粘膜的阳性率分别为18.2%、17%、19.3%和21.6%,正常粘膜上皮的阳性率为0%、0%、0%和40%.与肿瘤区相比,除nm23外,差异均有非常显著意义(P<0.01).K-ras、H-ras、mRNA表达在细胞膜内侧,c-myc mRNA主要表达在细胞核内,nm 23-H_1mRNA表达在胞浆内.4种癌基因表达与组织学类型无关,nm 23-H_1的表达与胃癌病人有无淋巴结转移关系密切(P<0.01).
出处 《沈阳部队医药》 1996年第5期387-390,481,共5页
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