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抑癌基因WWOX在食管鳞状细胞癌中的表达及意义
引用本文:李晓芳,Xiao-fang. 抑癌基因WWOX在食管鳞状细胞癌中的表达及意义[J]. 中原医刊, 2010, 0(2)
作者姓名:李晓芳  Xiao-fang
摘    要:
目的 探讨食管鳞状细胞癌(ESCC)组织中WWOX mRNA和蛋白的表达及其意义.方法 应用RT-PCR和免疫组化SP法检测50例ESCC组织、19例癌旁不典型增生组织及50例正常食管黏膜组织中WWOXmRNA和蛋白的表达.结果 WWOX在癌组织、癌旁不典型增生组织及正常黏膜组织中mRNA的相对表达量分别为0.81±0.08、0.84±0.05和0.90±0.05,组间比较差异有统计学意义(F=45.736,P<0.05);不同分化程度、TNM分期、浸润深度及有无淋巴结转移的ESCC组织之间WWOX mRNA相对表达量差异均有统计学意义(P均<0.05).ESCC组织及癌旁不典型增生组织中WWOX蛋白表达均低于正常黏膜组织,蛋白阳性表达率分别为42.0%(21/50)、64.8%(13/19)和84.0%(42/50),组间比较差异有统计学意义(x2=20.002,P<0.01);ESCC组织中WWOX蛋白表达与癌组织的分化程度、TNM分期、浸润深度及有无淋巴结转移密切相关(P<0.05).结论 ESCC组织中WWOX mRNA和蛋白表达均降低,其低表达可能与ESCC发生发展有关.检测WWOX mRNA及蛋白的表达可望成为食管鳞癌早期诊断和预后的分子指标之一.Abstract:Objective To explore the expression of WWOX mRNA and protein inesophageal squamous cell carcinoma (ESCC) tisuss. Methods The expression of WWOX was detected by RTPCR and SP immunohistochemical methods in 50 cases of ESCC tissue, 19 cases of mucosa adjacent to cancer, and 50 cases of normal esophageal mucosa. Results The relative content of WWOX mRNA depressed by turns in cancer tissue, mucosa adjacent to cancer and normal mucosa tissue which were 0.81 ± 0.08,0.84 ± 0.05,0.90 ± 0.05, respectively. And there was significant difference in group comparison (F = 45. 736, P < 0.05). The expression of WWOX mRNA was closely correlated with the tumor grade, TNM grade, infiltrative depth and lymphatic metastasis in ESCC tissue (P < 0.05). The positive rate of WWOX protein expression in cancer tissue and mucosa adjacent to cancer were lower than that of normal mucosa tissue which were 42.0% (21/50), 64.8 % (13/19), 84.0% (42/50) respectively. And there was a significant difference in group comparison(P < 0.05). The expression of WWOX protein was closely correlated with the tumor grade, TNM grade,infiltrative depth and lymphatic metastasis in ESCC tiissue (P <0.05). Conclusions The expression of WWOX mRNA and protein decreased in ESCC tissue, which suggest the WWOX gene may be related to oncogenesis of ESCC tissue. Combined detection of the expression of WWOX mRNA and protein may be used in early diagnosis and prognosis judgement of ESCC tissue.

关 键 词:抑癌基因  WWOX  食管鳞状细胞癌  蛋白表达  significance  squamous  cell  carcinoma  增生组织  mRNA  lymphatic  metastasis  统计学意义  黏膜组织  significant  淋巴结转移  difference  comparison  不典型  protein  expression  浸润深度  分化程度  比较差异

Expression of WWOX mRNA and protein in esophageal squamous cell carcinoma tissue and its significance
Abstract:
WWOX Esophageal squamous cell carcinoma RT-PCR Immunohistochemistry
Keywords:WWOX Esophageal squamous cell carcinoma RT-PCR Immunohistochemistry
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