Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population
<p>Abstract</p> <p>Background</p> <p>Inflammation is a key factor in the process of carcinogenesis from chronic gastritis induced by <it>Helicobacter pylori</it>. Selenoprotein S (SEPS1) is involved in the control of the inflammatory response in the endoplas...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2009-01-01
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| Series: | BMC Gastroenterology |
| Online Access: | http://www.biomedcentral.com/1471-230X/9/2 |
| _version_ | 1811295530964221952 |
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| author | Nagasaka Mitsuo Nakamura Masakatsu Kamiya Yoshio Fujita Hiroshi Maruyama Naoko Yoshioka Daisuke Ohkubo Masaaki Tahara Tomomitsu Arisawa Tomiyasu Shibata Tomoyuki Iwata Masami Takahama Kazuya Watanabe Makoto Hirata Ichiro |
| author_facet | Nagasaka Mitsuo Nakamura Masakatsu Kamiya Yoshio Fujita Hiroshi Maruyama Naoko Yoshioka Daisuke Ohkubo Masaaki Tahara Tomomitsu Arisawa Tomiyasu Shibata Tomoyuki Iwata Masami Takahama Kazuya Watanabe Makoto Hirata Ichiro |
| author_sort | Nagasaka Mitsuo |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Inflammation is a key factor in the process of carcinogenesis from chronic gastritis induced by <it>Helicobacter pylori</it>. Selenoprotein S (SEPS1) is involved in the control of the inflammatory response in the endoplasmic reticulum (ER). Recently the -105G>A polymorphism in the promoter of SEPS1 was shown to increase pro-inflammatory cytokine expression. We examined the association between this polymorphism and the risk of gastric cancer.</p> <p>Methods</p> <p>We took stomach biopsies during endoscopies of 268 Japanese gastric cancer patients (193 males and 75 females, average age 65.3), and 306 control patients (184 males and 122 females, average age 62.7) and extracted the DNA from the biopsy specimens. All subjects provided written informed consent. For the genotyping of the SEPS1 promoter polymorphism at position -105G>A, PCR-RFLP methods were used and the PCR products were digested with PspGI.</p> <p>Logistic-regression analysis was used to estimate odds ratios (OR) and 95% confidence intervals (CI), adjusting for age, sex, and <it>H. pylori </it>infection status.</p> <p>Results</p> <p>Among cases, the distribution of genotypes was as follows: 88.4% were GG, 11.2% were GA, and 0.4% were AA. Among controls, the distribution was as follows: 92.5% were GG, 7.2% were GA, and 0.3% were AA. Among males, carrying the A allele was associated with an increased odds of gastric cancer, compared with the GG genotype (OR: 2.0, 95% CI 1.0–4.1, p = 0.07). Compared with the GG genotype, carrying the A allele was significantly associated with increased risks of intestinal type gastric cancer (OR: 2.0, 95%CI 1.0–3.9, p < 0.05) as well as of gastric cancer located in the middle third of the stomach (OR: 2.0, 95%CI 1.0–3.9, p < 0.05).</p> <p>Conclusion</p> <p>The -105G>A promoter polymorphism of SEPS1 was associated with the intestinal type of gastric cancer. This polymorphism may influence the inflammatory conditions of gastric mucosa. Larger population-based studies are needed for clarifying the relation between inflammatory responses and SEPS1 polymorphism.</p> |
| first_indexed | 2024-04-13T05:34:58Z |
| format | Article |
| id | doaj.art-7d8447f4894e41459d4dbeed8aa7102a |
| institution | Directory Open Access Journal |
| issn | 1471-230X |
| language | English |
| last_indexed | 2024-04-13T05:34:58Z |
| publishDate | 2009-01-01 |
| publisher | BMC |
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| series | BMC Gastroenterology |
| spelling | doaj.art-7d8447f4894e41459d4dbeed8aa7102a2022-12-22T03:00:19ZengBMCBMC Gastroenterology1471-230X2009-01-0191210.1186/1471-230X-9-2Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese populationNagasaka MitsuoNakamura MasakatsuKamiya YoshioFujita HiroshiMaruyama NaokoYoshioka DaisukeOhkubo MasaakiTahara TomomitsuArisawa TomiyasuShibata TomoyukiIwata MasamiTakahama KazuyaWatanabe MakotoHirata Ichiro<p>Abstract</p> <p>Background</p> <p>Inflammation is a key factor in the process of carcinogenesis from chronic gastritis induced by <it>Helicobacter pylori</it>. Selenoprotein S (SEPS1) is involved in the control of the inflammatory response in the endoplasmic reticulum (ER). Recently the -105G>A polymorphism in the promoter of SEPS1 was shown to increase pro-inflammatory cytokine expression. We examined the association between this polymorphism and the risk of gastric cancer.</p> <p>Methods</p> <p>We took stomach biopsies during endoscopies of 268 Japanese gastric cancer patients (193 males and 75 females, average age 65.3), and 306 control patients (184 males and 122 females, average age 62.7) and extracted the DNA from the biopsy specimens. All subjects provided written informed consent. For the genotyping of the SEPS1 promoter polymorphism at position -105G>A, PCR-RFLP methods were used and the PCR products were digested with PspGI.</p> <p>Logistic-regression analysis was used to estimate odds ratios (OR) and 95% confidence intervals (CI), adjusting for age, sex, and <it>H. pylori </it>infection status.</p> <p>Results</p> <p>Among cases, the distribution of genotypes was as follows: 88.4% were GG, 11.2% were GA, and 0.4% were AA. Among controls, the distribution was as follows: 92.5% were GG, 7.2% were GA, and 0.3% were AA. Among males, carrying the A allele was associated with an increased odds of gastric cancer, compared with the GG genotype (OR: 2.0, 95% CI 1.0–4.1, p = 0.07). Compared with the GG genotype, carrying the A allele was significantly associated with increased risks of intestinal type gastric cancer (OR: 2.0, 95%CI 1.0–3.9, p < 0.05) as well as of gastric cancer located in the middle third of the stomach (OR: 2.0, 95%CI 1.0–3.9, p < 0.05).</p> <p>Conclusion</p> <p>The -105G>A promoter polymorphism of SEPS1 was associated with the intestinal type of gastric cancer. This polymorphism may influence the inflammatory conditions of gastric mucosa. Larger population-based studies are needed for clarifying the relation between inflammatory responses and SEPS1 polymorphism.</p>http://www.biomedcentral.com/1471-230X/9/2 |
| spellingShingle | Nagasaka Mitsuo Nakamura Masakatsu Kamiya Yoshio Fujita Hiroshi Maruyama Naoko Yoshioka Daisuke Ohkubo Masaaki Tahara Tomomitsu Arisawa Tomiyasu Shibata Tomoyuki Iwata Masami Takahama Kazuya Watanabe Makoto Hirata Ichiro Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population BMC Gastroenterology |
| title | Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population |
| title_full | Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population |
| title_fullStr | Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population |
| title_full_unstemmed | Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population |
| title_short | Selenoprotein S (SEPS1) gene -105G>A promoter polymorphism influences the susceptibility to gastric cancer in the Japanese population |
| title_sort | selenoprotein s seps1 gene 105g a promoter polymorphism influences the susceptibility to gastric cancer in the japanese population |
| url | http://www.biomedcentral.com/1471-230X/9/2 |
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