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Lin K, Wang Y, Gong J, Tan Y, Deng T, Wei N. Protective effects of total flavonoids from Alpinia officinarum rhizoma against ethanol-induced gastric ulcer in vivo and in vitro. PHARMACEUTICAL BIOLOGY 2020; 58:854-862. [PMID: 32871094 PMCID: PMC8641678 DOI: 10.1080/13880209.2020.1803370] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 07/17/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
CONTEXT Alpinia officinarum Hance (Zingiberaceae) is traditionally used to treat inflammation, pain, colds and digestive diseases. OBJECTIVE To investigate the potential protective mechanism of total flavonoids from the rhizomes of A. officinarum (F-AOH) in ethanol-induced acute gastric in vivo and in vitro. MATERIALS AND METHODS In vivo: Gastric damage was induced in BALB/c mice by administering ethanol (10 mL/kg) after oral treatment with F-AOH at 126.8, 63.4 and 31.7 mg/kg or ranitidine (Ran) at 100 mg/kg (1 week of continuous gavage). In vitro: Gastric mucosal epithelial cells (GES-1) were incubated with F-AOH (8, 4 and 2 μg/mL) for 16 h and treated with 7% ethanol for 4 h. The extent of gastric damage was assessed histopathologically, and the expression of NF-κB, COX-2, TNF-α, iNOS and IL-1β was quantified by Western blot analysis. In addition, proinflammatory mediators and concentrations of motilin (MTL) and gastrin (GAS) were measured by ELISA test. RESULTS F-AOH effectively reduced the ulcer index (from 23.4 ± 4.28 to 8.32 ± 1.5) and reduced release of inflammatory mediators (IL-1β, IL-6, TNF-α and PGE2), increased the content of nitric oxide and improved GAS and MTL secretion. The 50% inhibitory concentration (IC50) of F-AOH on cell damage was 17 μg/mL. F-AOH increased ethanol-induced cell survival (from 47 to 85%) and inhibited the expression of NF-κB, COX-2, TNF-α, IL-1β and iNOS proteins. CONCLUSIONS F-AOH inhibits ethanol-induced gastric mucosal damage, provides a theoretical basis for galangal in the treatment of other causes of GU, and promotes the application of galanga in the treatment of GU.
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Affiliation(s)
- Kaiwen Lin
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Haikou, China
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou, China
- School of Pharmacy, Hainan Medical University, Haikou, China
| | - Yong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Haikou, China
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou, China
- School of Pharmacy, Hainan Medical University, Haikou, China
| | - Jingwen Gong
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Haikou, China
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou, China
- School of Pharmacy, Hainan Medical University, Haikou, China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Haikou, China
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou, China
- School of Pharmacy, Hainan Medical University, Haikou, China
| | - Tang Deng
- Intervention Vascular Surgery of First Affiliated Hospital of Hainan Medical University, Haikou, China
- Ministry of Education, Key Laboratory of Emergency and Trauma of Hainan Medical University, Haikou, China
| | - Na Wei
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Haikou, China
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou, China
- School of Pharmacy, Hainan Medical University, Haikou, China
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Guan Y, Huang XF, Li PJ, Cao W, Gao XH, Guan X. Association of CD14 gene -260C>T and -561C>T polymorphisms with cancer susceptibility: A meta-analysis. J Gene Med 2020; 22:e3151. [PMID: 31826310 DOI: 10.1002/jgm.3151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/12/2019] [Accepted: 12/07/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Two polymorphisms, -260C>T (rs2569190) and -561C>T (rs5744455), in the CD14 gene have been implicated in susceptibility to cancer. However, the results remain inconclusive. The current meta-analysis was carried out aiming to confirm the function of these two polymorphisms on the susceptibility of cancer. METHODS We collected eligible studies from databases, including PubMed, EMBASE, CNKI, Wanfang, and VIP (Weipu). We used logistic regression calculation to compute odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS After strict selection, 24 studies with 5854 cases and 10339 controls for -260C>T and seven studies with 1809 cases and 7289 controls for -561C>T were finally enlisted into our analysis reference material. Pool results revealed that neither -260C>T, nor -561C>T was found to have any association with overall cancer susceptibility. Nevertheless, when stratified by cancer type, we detected a decreased risk associated with other cancers in a heterozygous model (OR = 0.69, 95% CI = 0.51-0.93, p = 0.014) and a dominant model (OR = 0.70, 95% CI = 0.53-0.93, p = 0.012) for -561C>T. An increased risk was found in other cancers under an allele model (OR = 1.29, 95% CI = 1.03-1.62, p = 0.026), in laryngeal cancer under a dominant model (OR = 1.38, 95% CI = 1.11-1.71, p = 0.003) and for a score ≤ 9 under a recessive model (OR = 1.45, 95% CI = 1.09-1.91, p = 0.009) for -561C>T. CONCLUSIONS In the present study, we conclude that the CD14 -260C>T and -561C>T polymorphisms might not be associated with overall cancer risk. Further studies are encouraged to confirm this conclusion.
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Affiliation(s)
- Yin Guan
- Intensive Critical Care Unit, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Xiao-Feng Huang
- Intensive Critical Care Unit, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Pei-Jie Li
- Intensive Critical Care Unit, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Wen Cao
- Intensive Critical Care Unit, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Xue-Hua Gao
- Department of Anethesiology, Gansu Provincial Cancer Hospital, Lanzhou, Gansu, China
| | - Xia Guan
- Digestive Endoscopy Center, The Second Peoples Hospital of Lanzhou, Lanzhou, Gansu, China
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Tongtawee T, Simawaranon T, Wattanawongdon W, Dechsukhum C, Leeanansaksiri W. Toll-like receptor 2 and 4 polymorphisms associated with Helicobacter pylori susceptibility and gastric cancer. TURKISH JOURNAL OF GASTROENTEROLOGY 2019; 30:15-20. [PMID: 30301709 DOI: 10.5152/tjg.2018.17461] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND/AIMS Genetic polymorphisms in Toll-like receptors (TLRs) are important influence on gastric lesion development and Helicobacter pylori susceptibility. MATERIALS AND METHODS TLR2 rs3804099 and rs3804100 and TLR4 rs10759932 were determined in a total of 400 patients. The association among genotypes and the risk of gastric lesion development and H. pylori susceptibility were evaluated by the odds ratios (ORs) and 95% confidence intervals (95% CIs) from logistic regression analyses. RESULTS TLR4 rs10759932, C/C homozygous genotype was associated with an increased risk of premalignant/malignant (OR=2.48, 95% CI=1.96-4.62, p=0.015). The recessive model of TLR4 rs10759932 showed a decreased risk of H. pylori susceptibility (adjusted OR=0.52, 95% CI=0.38-0.82, p=0.046). Meanwhile, the recessive model was associated with an increased risk of non-malignant (OR=3.46, 95% CI=2.25-5.67, p=0.001). In subjects with H. pylori infection, the recessive model was associated with an increased risk of non-malignant (OR=2.28, 95% CI=1.24-3.57, p=0.001) and premalignant/malignant (OR=1.83, 95% CI=1.16-2.84, p=0.027). CONCLUSION TLR4 rs10759932, but not TLR2 rs3804099 and rs3804100, was associated with risk of premalignant and/or malignant and H. pylori susceptibility. H. pylori infection seems to contribute to chronic gastritis, and premalignant/malignant supported the development of the premalignant/malignant lesions involved in H. pylori infection that is critical to gastric cancer in Thai patients.
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Affiliation(s)
- Taweesak Tongtawee
- Department of Surgery, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Theeraya Simawaranon
- Department of Surgery, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Wareeporn Wattanawongdon
- Department of Surgery, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Chavaboon Dechsukhum
- School of Pathology, Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Wilairat Leeanansaksiri
- School of Preclinic, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
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Castaño-Rodríguez N, Kaakoush NO, Mitchell HM. Pattern-recognition receptors and gastric cancer. Front Immunol 2014; 5:336. [PMID: 25101079 PMCID: PMC4105827 DOI: 10.3389/fimmu.2014.00336] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 07/03/2014] [Indexed: 12/12/2022] Open
Abstract
Chronic inflammation has been associated with an increased risk of several human malignancies, a classic example being gastric adenocarcinoma (GC). Development of GC is known to result from infection of the gastric mucosa by Helicobacter pylori, which initially induces acute inflammation and, in a subset of patients, progresses over time to chronic inflammation, gastric atrophy, intestinal metaplasia, dysplasia, and finally intestinal-type GC. Germ-line encoded receptors known as pattern-recognition receptors (PRRs) are critical for generating mature pro-inflammatory cytokines that are crucial for both Th1 and Th2 responses. Given that H. pylori is initially targeted by PRRs, it is conceivable that dysfunction within genes of this arm of the immune system could modulate the host response against H. pylori infection, and subsequently influence the emergence of GC. Current evidence suggests that Toll-like receptors (TLRs) (TLR2, TLR3, TLR4, TLR5, and TLR9), nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) (NOD1, NOD2, and NLRP3), a C-type lectin receptor (DC-SIGN), and retinoic acid-inducible gene (RIG)-I-like receptors (RIG-I and MDA-5), are involved in both the recognition of H. pylori and gastric carcinogenesis. In addition, polymorphisms in genes involved in the TLR (TLR1, TLR2, TLR4, TLR5, TLR9, and CD14) and NLR (NOD1, NOD2, NLRP3, NLRP12, NLRX1, CASP1, ASC, and CARD8) signaling pathways have been shown to modulate the risk of H. pylori infection, gastric precancerous lesions, and/or GC. Further, the modulation of PRRs has been suggested to suppress H. pylori-induced inflammation and enhance GC cell apoptosis, highlighting their potential relevance in GC therapeutics. In this review, we present current advances in our understanding of the role of the TLR and NLR signaling pathways in the pathogenesis of GC, address the involvement of other recently identified PRRs in GC, and discuss the potential implications of PRRs in GC immunotherapy.
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Affiliation(s)
- Natalia Castaño-Rodríguez
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales , Sydney, NSW , Australia
| | - Nadeem O Kaakoush
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales , Sydney, NSW , Australia
| | - Hazel M Mitchell
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales , Sydney, NSW , Australia
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Association between CD14 gene polymorphisms and cancer risk: a meta-analysis. PLoS One 2014; 9:e100122. [PMID: 24978812 PMCID: PMC4076245 DOI: 10.1371/journal.pone.0100122] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/21/2014] [Indexed: 12/12/2022] Open
Abstract
Background Two polymorphisms, -260C/T and -651C/T, in the CD14 gene have been implicated in susceptibility to cancer. However, the results remain inconclusive. This meta-analysis aimed to investigate the association between the two polymorphisms and risk of cancer. Methods All eligible case-control studies published up to March 2014 were identified by searching PubMed, Web of Science, CNKI and WanFang database. Pooled odds ratio (OR) with 95% confidence interval (CI) were used to access the strength of this association in fixed- or random-effects model. Results 17 case-control studies from fourteen articles were included. Of those, there were 17 studies (4198 cases and 4194 controls) for -260C/T polymorphism and three studies (832 cases and 1190 controls) for -651C/T polymorphism. Overall, no significant associations between the two polymorphisms of CD14 gene and cancer risk were found. When stratified by ethnicity, cancer type and source of control, similar results were observed among them. In addition, in further subgroups analysis by Helicobacter pylori (H. pylori) infection status and tumor location in gastric cancer subgroup, we found that the CD14 -260C/T polymorphism may increase the risk of gastric cancer in H. pylori-infected individuals. Conclusions This meta-analysis suggests that the CD14 -260C/T polymorphism may increase the risk of gastric cancer in H. pylori-infected individuals. However, large and well-designed studies are warranted to validate our findings.
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Companioni O, Bonet C, Muñoz X, Weiderpass E, Panico S, Tumino R, Palli D, Agnoli C, Vineis P, Boutron-Ruault MC, Racine A, Clavel-Chapelon F, Travis RC, Khaw KT, Riboli E, Murphy N, Vergnaud AC, Trichopoulou A, Benetou V, Trichopoulos D, Lund E, Johansen D, Lindkvist B, Johansson M, Sund M, Ardanaz E, Sánchez-Cantalejo E, Huerta JM, Dorronsoro M, Ramón Quirós J, Tjonneland A, Mortensen LM, Overvad K, Chang-Claude J, Rizzato C, Boeing H, Bueno-de-Mesquita HB, Bueno de Mesquita HB, Siersema P, Peeters PHM, Numans ME, Carneiro F, Licaj I, Freisling H, Sala N, González CA. Polymorphisms of Helicobacter pylori signaling pathway genes and gastric cancer risk in the European Prospective Investigation into Cancer-Eurgast cohort. Int J Cancer 2014; 134:92-101. [PMID: 23824692 DOI: 10.1002/ijc.28357] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 04/16/2013] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori is a recognized causal factor of noncardia gastric cancer (GC). Lipopolysaccharide and peptidoglycan of this bacterium are recognized by CD14, TLR4 and NOD2 human proteins, while NFKB1 activates the transcription of pro-inflammatory cytokines to elicit an immune response. Single nucleotide polymorphisms (SNPs) in these genes have been associated with GC in different populations. We genotyped 30 SNPs of these genes, in 365 gastric adenocarcinomas and 1,284 matched controls from the European Prospective Investigation into Cancer cohort. The association with GC and its histological and anatomical subtypes was analyzed by logistic regression and corrected for multiple comparisons. Using a log-additive model, we found a significant association between SNPs in CD14, NOD2 and TLR4 with GC risk. However, after applying the multiple comparisons tests only the NOD2 region remained significant (p = 0.009). Analysis according to anatomical subtypes revealed NOD2 and NFKB1 SNPs associated with noncardia GC and CD14 SNPs associated with cardia GC, while analysis according to histological subtypes showed that CD14 was associated with intestinal but not diffuse GC. The multiple comparisons tests confirmed the association of NOD2 with noncardia GC (p = 0.0003) and CD14 with cardia GC (p = 0.01). Haplotype analysis was in agreement with single SNP results for NOD2 and CD14 genes. From these results, we conclude that genetic variation in NOD2 associates with noncardia GC while variation in CD14 is associated with cardia GC.
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Affiliation(s)
- Osmel Companioni
- Unit of Nutrition, Environment and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology-IDIBELL, Barcelona, 08908, Spain
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Zhou W, Jia L, Guo S, Hu Q, Shen Y, Li N. The -159C/T polymorphism in the CD14 gene and cancer risk: a meta-analysis. Onco Targets Ther 2013; 7:5-12. [PMID: 24376358 PMCID: PMC3865088 DOI: 10.2147/ott.s54547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Purpose The -159C/T polymorphism in the cluster of differentiation (CD)14 gene has been extensively studied for an association with cancer; however, results from replication studies have been inconclusive. The aim of this study was to perform a comprehensive assessment of the possible association between the -159C/T polymorphism in the CD14 gene and cancer risk, by meta-analysis. Methods We searched in PubMed, Embase, and other databases, covering all case-control studies on the possible association between CD14 -159C/T gene polymorphism and cancer risk. Data were extracted and statistical analyses were performed using RevMan 5.0 and STATA 12.0 software. Results A total of 12 case-control studies met our inclusion criteria, including 2,498 cases and 2,696 controls. The combined analysis indicated that the CD14 -159C/T gene polymorphism didn’t confer risk for cancer – the recessive model (TT versus (vs) CT + CC), showed odds ratio (OR) =1.01, 95% confidence interval (CI) =0.82–1.23 (P=0.94), while the dominant model (TT + TC vs CC) showed OR =0.81, 95% CI =0.66–1.00 (P=0.05). A subgroup analysis by ethnicity showed that the cancer risk associated with CD14 -159C/T gene polymorphism was significantly decreased among Caucasians for the TC + TT vs CC comparison (OR =0.83, 95% CI =0.70–0.98 [P=0.03]). The subgroup analysis by cancer type suggested that the CD14 -159C/T gene polymorphism was not associated with gastric cancer risk. Conclusion The evidence from the present meta-analysis did not support the CD14 -159C/T gene polymorphism as a genetic risk factor for cancer. Further studies on different cancer types and ethnicities are needed to validate our findings.
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Affiliation(s)
- Wei Zhou
- West China School of Public Health, Sichuan University, Chengdu, People's Republic of China ; Human Body Function Laboratory, Chengdu University of Technology, Chengdu, People's Republic of China
| | - Liuqun Jia
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Shujin Guo
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Qianjin Hu
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yongchun Shen
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Ningxiu Li
- West China School of Public Health, Sichuan University, Chengdu, People's Republic of China
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Kim EJ, Chung WC, Lee KM, Paik CN, Kim SB, Oh YS, Lee YW, Kang SG, Noh SJ. Helicobacter pylori Infection Enhances Gastric Mucosal Inflammation in Individuals Carrying the 260-T Allele of the CD14 Gene. Gut Liver 2013; 7:317-22. [PMID: 23710313 PMCID: PMC3661964 DOI: 10.5009/gnl.2013.7.3.317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 09/19/2012] [Accepted: 10/05/2012] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND/AIMS We aim to evaluate the association between promoter polymorphism of the clusters of differentiation 14 (CD14) gene and Helicobacter pylori-induced gastric mucosal inflammation in a healthy Korean population. METHODS The study population consisted of 267 healthy subjects who visited our hospital for free nationwide gastric cancer screening. Promoter polymorphism at -260 C/T of the CD14 gene was determined by polymerase chain reaction and restriction fragment length polymorphism analysis. The severity of gastric mucosal inflammation was estimated by a gastritis score based on the sum of the values of the grade and activity of the gastritis. Expression of soluble CD14 (sCD14) was assessed by quantitative sandwich ELISA. RESULTS CD14 polymorphism was not associated with H. pylori infection. There were no significant differences in gastritis scores among the genotype subgroups, but subjects carrying the CD14 -260 CT/TT genotype had significantly higher sCD14 levels than those carrying the CC genotype. Subjects with the 260-T allele of the CD14 gene and H. pylori infection had significantly higher sCD14 levels than those with the same genotype but without infection. CONCLUSIONS In individuals with the T allele at the -260 site of the promoter region of the CD14 gene, H. pylori infection accentuates gastric mucosal inflammation.
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Affiliation(s)
- Eun Jung Kim
- Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Korea
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Positive association between Toll-like receptor 4 gene +896A/G polymorphism and susceptibility to gastric carcinogenesis: a meta-analysis. Tumour Biol 2013; 34:2441-50. [PMID: 23592020 DOI: 10.1007/s13277-013-0795-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 04/03/2013] [Indexed: 12/26/2022] Open
Abstract
Several studies have investigated the association between the Toll-like receptor 4 (TLR4) gene +896A/G polymorphism and gastric carcinogenesis, including gastric cancer and precancerous gastric lesions. However, published results are inconsistent. So, we performed a meta-analysis to assess whether the TLR4 +896A/G single-nucleotide polymorphism (SNP) is a risk factor in gastric cancer development. We searched PubMed and Embase databases for studies that reported the odds ratio (OR) and 95 % confidence interval (CI) for the association between the TLR4 +896A/G SNP and the risk of gastric cancer and/or precancerous lesions with the last update of November 2012. Data were analyzed using Review Manager (Version 5.1), and publication bias was estimated. We included 10 study populations, comprising 2,233 cases and 2,849 controls from 8 publications. The pooled OR was 2.00 (95 % CI = 1.59-2.53) for the G allelic model. Analysis stratified by different stages and anatomic sites of neoplasia resulted in a significantly increased risk associated with gastric cancer (OR = 1.87, 95 % CI = 1.44-2.44), especially the non-cardia subtype (OR = 2.03, 95 % CI = 1.51-2.72). Besides, the G allele emerged as a strong risk factor for precancerous gastric lesions (OR = 2.47, 95 % CI = 1.57-3.88). A subsequent subgroup analysis by Helicobacter pylori-positive ratio in cases (>80 %) indicated an enhancement in the association with precancerous lesions (OR = 3.43, 95 % CI = 1.92-6.13). The TLR4 +896A/G SNP is a risk factor in gastric carcinogenesis, especially in H. pylori-infected patients with precancerous lesions.
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Castaño-Rodríguez N, Kaakoush NO, Goh KL, Fock KM, Mitchell HM. The role of TLR2, TLR4 and CD14 genetic polymorphisms in gastric carcinogenesis: a case-control study and meta-analysis. PLoS One 2013; 8:e60327. [PMID: 23565226 PMCID: PMC3614925 DOI: 10.1371/journal.pone.0060327] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 02/25/2013] [Indexed: 12/16/2022] Open
Abstract
Background In addition to Helicobacter pylori infection, host genetic factors contribute to gastric cancer (GC). Recognition of H. pylori is known to involve Toll-like receptors (TLR), which subsequently leads to activation of NF-κB. Thus, the overall aim of this study was to estimate for the first time the pooled effect size of polymorphisms in TLR2, TLR4 and CD14 on GC development through a meta-analysis. Methods A case-control study comprising 284 ethnic Chinese individuals (70 non-cardia GC cases and 214 functional dyspepsia controls) was conducted for the genotyping of TLR2 -196 to -174del, CD14 -260 C/T and TLR4 rs11536889 using PCR, RT-PCR and mass spectrometry. Case-control studies of TLR2, TLR4 and CD14 polymorphisms and GC were searched up to June 2012. Pooled odds ratios and 95% confidence intervals were obtained by means of the random effects model. Results In our ethnic Chinese case-control study, the TLR4 rs11536889 C allele increased the risk of GC (OR: 1.89, 95%CI: 1.23–2.92) while the CD14 -260 T allele was protective (OR: 0.62, 95%CI: 0.42–0.91). TLR2 -196 to -174 increased the risk of GC only in H. pylori-infected individuals (OR: 3.10, 95%CI: 1.27–7.60). In the meta-analysis, TLR4 Asp299Gly showed borderline results in the general analysis (pooled OR: 1.58, 95%CI: 0.98–2.60), nevertheless, stratified analysis by ethnicity showed that the mutant allele was a definitive risk factor for GC in Western populations (pooled OR: 1.87, 95%CI: 1.31–2.65). There was a potential association between the TLR2 -196 to -174 deletion allele and GC in Japanese (pooled OR: 1.18, 95%CI: 0.96–1.45). TLR4 Thr399Ile did not provide significant results. Conclusions TLR4 rs11536889 and CD14 -260 C/T are associated with non-cardia GC in Chinese. Based on our meta-analysis, the TLR signalling pathway is involved in gastric carcinogenesis, TLR4 Asp299Gly and TLR2 -196 to -174del showing associations with GC in an ethnic-specific manner.
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Affiliation(s)
- Natalia Castaño-Rodríguez
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, Australia
| | - Nadeem O. Kaakoush
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, Australia
| | - Khean-Lee Goh
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kwong Ming Fock
- Division of Gastroenterology, Department of Medicine, Changi General Hospital, Singapore, Singapore
| | - Hazel M. Mitchell
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, Australia
- * E-mail:
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Wang YQ, Qi XW, Jiang J, Guo QN. Need for clarification of data in the recent meta-analysis about TLR4 polymorphisms and cancer risk. Gene X 2012; 508:256. [DOI: 10.1016/j.gene.2012.07.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 07/31/2012] [Indexed: 10/28/2022] Open
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Hishida A, Matsuo K, Goto Y, Hamajima N. Genetic predisposition to Helicobacter pylori-induced gastric precancerous conditions. World J Gastrointest Oncol 2010; 2:369-79. [PMID: 21160888 PMCID: PMC2999673 DOI: 10.4251/wjgo.v2.i10.369] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 09/20/2010] [Accepted: 09/27/2010] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer is the most common malignancy of the gastrointestinal tract in East Asian populations and the second most frequent cause of cancer-related mortality in the world. While previous studies have investigated the genetic factors involved in gastric carcinogenesis, there still exist relatively few studies that have investigated the genetic traits associated with the risk of gastric precancerous conditions. In this paper we will review the biology and genetic polymorphisms involved in the genesis of gastric precancerous conditions reported to date and discuss the future prospects of this field of study. The associations of gastric precancerous conditions with polymorphisms in the cytotoxin-associated gene A-related genes (e.g. PTPN11 G/A at intron 3, rs2301756), those in the genes involved in host immunity against Helicobacter pylori (H. pylori) infection (e.g. TLR4 +3725G/C, rs11536889) or polymorphisms of the genes essential for the development/ differentiation of the gastric epithelial cells (e.g. RUNX3 T/A polymorphism at intron 3, rs760805) have been reported to date. Genetic epidemiological studies of the associations between H. pylori-induced gastric precancerous conditions and other gene polymorphisms in these pathways as well as polymorphisms of the genes involved in other pathways like oxidative DNA damage repair pathways would provide useful evidence for the individualized prevention of these H. pylori-induced gastric precancerous conditions.
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Affiliation(s)
- Asahi Hishida
- Asahi Hishida, Yasuyuki Goto, Nobuyuki Hamajima, Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
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