Expression of transforming growth factor β1 and its type I receptor in gastric cancer
Hui Han, Xu Luo, Xi-Shuang Liu, Hai-Yun Si, Baozhong Wang
Abstract
Hui Han, Xu Luo, Xi-Shuang Liu, Hai-Yun Si, Baozhong Wang
Abstract
目的:探讨TGF-β1和TGF-β R1蛋白及其前体mRNA的表达与胃癌发生发展的关系.方法:采用免疫组化和实时PCR(real-time PCR)方法,对胃癌50例、萎缩性胃炎19例和正常胃黏膜18例的TGF-β1和TGF-β R1蛋白及其前体mRNA的表达进行检测. 结果:胃癌组织中TGF-β1和TGF-β R1蛋白表达明显增强,其阳性率(80.0%和75.0%)明显高于正常胃黏膜组(33.3%和27.8%)及萎缩性胃炎组(36.8%和36.8%),差异有显著性(P〈0.01).胃癌组织的分化程度越低,TGF-β1、TGF-β R1蛋白表达的阳性率越高(r=35.58,P〈0.01).同样,胃癌组织中TGF-β1和TGF-β R1前体mRNA的表达明显高于萎缩性胃炎组(TGF-β1:4.20±0.51 vs 9.15±2.12,8.22±1.81;TGF-β R1:1.28±0.48 vs 5.55±1.48,4.19±0.95). 结论:TGF-β1和TGF-β R1的高表达与胃癌的发生发展、生物学行为和预后可能有关.
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目的:探讨TGF-β1和TGF-β R1蛋白及其前体mRNA的表达与胃癌发生发展的关系.方法:采用免疫组化和实时PCR(real-time PCR)方法,对胃癌50例、萎缩性胃炎19例和正常胃黏膜18例的TGF-β1和TGF-β R1蛋白及其前体mRNA的表达进行检测. 结果:胃癌组织中TGF-β1和TGF-β R1蛋白表达明显增强,其阳性率(80.0%和75.0%)明显高于正常胃黏膜组(33.3%和27.8%)及萎缩性胃炎组(36.8%和36.8%),差异有显著性(P〈0.01).胃癌组织的分化程度越低,TGF-β1、TGF-β R1蛋白表达的阳性率越高(r=35.58,P〈0.01).同样,胃癌组织中TGF-β1和TGF-β R1前体mRNA的表达明显高于萎缩性胃炎组(TGF-β1:4.20±0.51 vs 9.15±2.12,8.22±1.81;TGF-β R1:1.28±0.48 vs 5.55±1.48,4.19±0.95). 结论:TGF-β1和TGF-β R1的高表达与胃癌的发生发展、生物学行为和预后可能有关.
Key concepts: Transforming growth factor, Cancer research, Cancer, Expression (computer science), Internal medicine, Biology, Oncology, Medicine