Expression mechanism and clinical significance of nob1 in gastric cancer tissue and adjacent normal tissue.
JOURNAL OF BIOLOGICAL REGULATORS AND HOMEOSTATIC AGENTS(2015)
摘要
This paper studies the effect and relationship of NOB1 in the development of gastric cancer, based on an analysis of NOB1expression in gastric cancer tissue and adjacent tissue. Thirty gastric cancer tissue samples taken during surgery with complete pathological data and their related adjacent normal tissue were examined in this study. NOB1 protein expression in gastric cancer tissue and adjacent normal tissue was detected by immunohistochemistry (IHC). Real-time PCR was used to detect NOB1 mRNA expression, which provided a basis on which to explore the clinical pathological characteristics for patients with gastric cancer. Results show that NOB1 protein in gastric cancer tissue and adjacent normal tissue were diffusely expressed both in the cytoplasm and nucleus. The positive expression rate in gastric cancer tissue was 73%, higher than that in adjacent normal tissue (47%). Both the reference NAPDH and NOB1 amplification are reflected in the amplification curve in standard S-shape and the unimodal solubility curve which was not altered by non-specific amplification and primer dimer. NOB1 mRNA relative expression in cancer tissue was 4.899∓1.412. NOB1 expression had no direct relationship with the patients age, gender, tumor differentiation or infiltration degree, lymphatic metastasis, distant metastasis nor pTNM periodization, but was directly related to the size of the tumor. All the findings in this paper suggest that NOB1 can be one of the focuses for diagnosing and treating gastric cancer and that its protein expression is likely to increase with the growth of tumor, thus playing a great role in the incidence and development of gastric cancer.
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关键词
NOB1,gastric cancer tissue,adjacent normal tissue,PCR
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