Differential expression of the UGT1A family of genes in stomach cancer tissues

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• 作者：Beyhan Cengiz ; Onder Yumrutas ; Esra Bozgeyik ; Ersin Borazan…
• 关键词：Gene expression ; Stomach cancer ; UDP ; glucuronosyltransferases ; UGT1A ; UGT1A6
• 刊名：Tumor Biology
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：36
• 期：8
• 页码：5831-5837
• 全文大小：275 KB
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• 作者单位：Beyhan Cengiz (1)
  Onder Yumrutas (2)
  Esra Bozgeyik (3)
  Ersin Borazan (4)
  Yusuf Ziya Igci (3)
  Ibrahim Bozgeyik (2)
  Serdar Oztuzcu (3)
  
  1. Department of Medical Biology, Faculty of Medicine, Gazi University, Ankara, Turkey
  2. Department of Medical Biology, Faculty of Medicine, Adiyaman University, Adiyaman, Turkey
  3. Department of Medical Biology, Faculty of Medicine, Gaziantep University, 27310, Gaziantep, Turkey
  4. Department of General Surgery, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
  
• 刊物主题：Cancer Research;
• 出版者：Springer Netherlands
• ISSN：1423-0380

文摘

Uridine 5-diphospho-glucuronosyltransferases (UGT) are the key players in the biotransformation of drugs, xenobiotics, and endogenous compounds. Particularly, UDP-glucuronosyltransferase 1A (UGT1A) participates in a wide range of biological and pharmacological processes and plays a critical role in the conjugation of endogenous and exogenous components. Thirteen alternative splicing products were produced from UGT1A gene locus designated as UGT1A1 and UGT1A3-0. A growing amount of evidence suggests that they have important roles in the carcinogenesis which is well documented by colon, liver, pancreas, and kidney cancer studies. Here, we report differential expressions of UGT1A genes in normal and tumor tissues of stomach cancer patients. Total numbers of 49 patients were enrolled for this study, and expression analysis of UGT1A genes was evaluated by the real-time PCR method. Accordingly, UGT1A1, UGT1A8, and UGT1A10 were found to be upregulated, and UGT1A3, UGT1A5, UGT1A7, and UGT1A9 were downregulated in stomach tumors. No expression changes were observed in UGT1A4. Also, UGT1A6 transcription variants were significantly upregulated in stomach cancer tissues compared to normal stomach tissue. Additionally, UGT1A7 gene showed highest expression in both normal and tumoral tissues, and interestingly, UGT1A7 gene expression was significantly reduced in stage II patients as compared to other patients. In conclusion, UGT1A genes are differentially expressed in normal and tumoral stomach tissues and expression changes of these genes may affect the development and progression of various types of cancer including the cancer of the stomach. Keywords Gene expression Stomach cancer UDP-glucuronosyltransferases UGT1A UGT1A6