H. pylori infection is related to mitochondrial microsatellite instability in gastric carcinogenesis

被引:7
作者
Ling, Xianlong [1 ]
Zhang, Haoxiang [1 ]
Shen, Caifei [1 ]
Yan, Wu [1 ]
Wang, Pu [1 ]
Feng, Ji [1 ]
Peng, Zhihong [1 ]
Peng, Guiyong [1 ]
Chen, Wensheng [1 ]
Fang, Dianchun [1 ]
机构
[1] Third Mil Med Univ, Southwest Hosp, Dept Gastroenterol, Chongqing 400038, Peoples R China
基金
中国国家自然科学基金;
关键词
H; pylori; Mitochondrial microsatellite instability; IL-8; Gastric cancer; OXYGEN METABOLITE PRODUCTION; DUODENAL-ULCER DISEASE; HELICOBACTER-PYLORI; DNA-DAMAGE; OXIDATIVE STRESS; HUMAN CANCERS; NUCLEAR-DNA; IN-VIVO; INTERLEUKIN-8; CELLS;
D O I
10.1186/s13027-016-0078-5
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Bachground: To assess the correlation of H. pylori infection with mitochondrial microsatellite instability (mtMSI) and IL-8 in gastric carcinogenesis. Methods: H. pylori infection was evaluated through histology and a urease breath test; mtMSI was measured using PCR-single strand conformation polymorphism (PCR-SSCP); IL-8 was analyzed with ELISA methods. Results: The detection rate of mtMSI was significantly higher in specimens with H. pylori infection than in those without H. pylori infection (P < 0.05). The levels of IL-8 were significantly higher in specimens with mtMSI than in those without mtMSI (P < 0.01). An association of mtMSI with the intestinal histological type was found (P < 0.05). Increased IL-8 levels induced by H. pylori were related to the invasion, lymphnode spreading and clinical stage of gastric cancer (P < 0.05). Conclusions: H. pylori infection is related to mitochondrial microsatellite instability in the early steps of gastric cancer development. IL-8 may play a role in the development of mtMSI induced by H. pylori. Our results support a role for mtMSI in different mechanisms of gastric carcinogenesis.
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页数:8
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