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Chang YW, Oh CH, Kim JW, Lee JW, Park MJ, Shim JJ, Lee CK, Jang JY, Dong SH, Kim HJ, Kim SS, Kim BH. Combination of Helicobacter pylori infection and the interleukin 8 -251 T > A polymorphism, but not the mannose-binding lectin 2 codon 54 G > A polymorphism, might be a risk factor of gastric cancer. BMC Cancer 2017; 17:388. [PMID: 28558668 PMCID: PMC5450387 DOI: 10.1186/s12885-017-3378-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 05/19/2017] [Indexed: 12/15/2022] Open
Abstract
Background Mannose-binding lectin (MBL) acts in the innate immune response to Helicobacter pylori. Interleukin 8 (IL-8) is a potent cytokine produced by gastric epithelial cells in response to H. pylori. We aimed to investigate whether polymorphisms in MBL2 and IL-8 influence susceptibility to H. pylori infection, and the associations of these polymorphisms with the risk of gastroduodenal diseases in a Korean population. Methods We consecutively enrolled 176 H. pylori-negative control subjects, 221 subjects with H. pylori-positive non-atrophic gastritis, 52 mild atrophic gastritis (AG), 61 severe AG, 175 duodenal ulcer, and 283 gastric cancer (GC). Allele-specific PCR-RFLP was conducted for polymorphisms in MBL2 exon 1 (codon 52, 54, and 57) and IL-8 -251 T > A. IL-8 levels in gastric mucosal tissues and serum MBL levels were measured by enzyme-linked immunosorbent assay. Results MBL2 exon 1 polymorphic variants were found only in codon 54, and the allele frequencies did not differ significantly between the control and disease groups. Although serum MBL levels in codon 54 A/A mutants were markedly low, it did not influence susceptibility to H. pylori infection or the risk of gastroduodenal diseases. IL-8 levels were significantly different between T/T wild type, T/A heterozygote, and A/A mutant genotypes. IL-8 -251 A allele carriers (A/A + T/A) showed increased IL-8 levels, and were significantly associated with the risk of severe AG and GC. Conclusions We suggest that a combination of H. pylori infection and the IL-8 -251 T > A polymorphism might increase the risk of severe AG and GC in a Korean population.
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Affiliation(s)
- Young Woon Chang
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Chi Hyuk Oh
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Jung-Wook Kim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
| | - Jae Won Lee
- Department of Statistics, Korea University, Seoul, South Korea
| | - Mi Ju Park
- Department of Statistics, Korea University, Seoul, South Korea
| | - Jae-Jun Shim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Chang Kyun Lee
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Jae-Young Jang
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Seok Ho Dong
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Hyo Jong Kim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
| | - Sung Soo Kim
- Department of Biochemistry and Molecular Biology, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Byung-Ho Kim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea
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Tahara T, Shibata T, Wang F, Yamashita H, Hirata I, Arisawa T. Genetic Polymorphisms of Molecules Associated with Innate Immune Responses, TRL2 and MBL2 Genes in Japanese Subjects with Functional Dyspepsia. J Clin Biochem Nutr 2010; 47:217-23. [PMID: 21103030 PMCID: PMC2966931 DOI: 10.3164/jcbn.10-40] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Accepted: 07/01/2010] [Indexed: 12/15/2022] Open
Abstract
Inflammatory changes in the gastric mucosa are commonly observed in Japanese patients with functional dyspepsia (FD). However, detailed data regarding the possible association between the genetic factors of inflammation related molecules and FD are not available. Toll like receptor 2 (TLR2) and mannan-binding lectin (MBL) protein play important roles in the innate immune activation. We aimed to clarify the association between common polymorphisms of TLR2 and MBL2 genes with FD in Japanese subjects. TLR2 −196 to −174 del and MBL2 codon54 G/A polymorphisms were genotyped in 111 FD patients according to Rome III criteria and 106 asymptomatic controls. Non-significant correlation was found between TLR2 and MBL2 polymorphisms with FD. However, in Helicobacter pylori (H. pylori) positives, we found significant inverse association between TLR2 −196 to −174 del carrier and FD among H. pylori positive subjects (Adjusted odds ratio (OR) = 0.48, 95% confidence interval (CI) = 0.23–0.996, p = 0.0488). We also found significant inverse association between the same genotype with postprandial distress syndrome (PDS) among H. pylori positive subjects (Adjusted OR = 0.22, 95% CI = 0.07–0.69, p = 0.0099). Our data suggest that TLR2 −196 to −174 del carriers’s status but not MBL2 codon54 G/A is inversely related to the risk with FD in H. pylori-infected subjects.
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Affiliation(s)
- Tomomitsu Tahara
- Department of Gastroenterology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
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