食管鳞癌组织中的端粒延长替代机制

被引:1
作者
张颖 [1 ]
左连富 [2 ]
邝刚 [2 ]
吴艳萍 [1 ]
刘嘉琳 [1 ]
机构
[1] 河北大学医学部病理教研室
[2] 河北省肿瘤研究所
关键词
食管鳞状细胞癌; 端粒酶逆转录酶; 早幼粒细胞白血病蛋白;
D O I
10.19460/j.cnki.0253-3685.2007.03.010
中图分类号
R735.1 [食管肿瘤];
学科分类号
100214 ;
摘要
目的研究食管鳞癌组织中端粒酶逆转录酶(hTERT)蛋白和端粒延长替代(ALT)机制的表达,探讨其与食管癌关系。方法应用免疫组织化学法,观察11例正常食管黏膜、12例癌旁伴有上皮不典型增生组织和64例食管鳞癌组织中早幼粒细胞白血病蛋白(PML)蛋白和hTERT蛋白的表达情况。结果癌旁组织和癌组织PML蛋白阳性例数分别为1(8.33%)和10(15.62%),hTERT蛋白阳性率分别为41.67%(5/12)和84.38%(54/64),两者hTERT蛋白阳性表达率存在显著差异(P<0.01)。结论hTERT蛋白表达和ALT途径都可能存在于食管鳞癌组织中维持端粒长度。
引用
收藏
页码:239 / 240+212 +212
页数:3
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