1
|
Gros B, Gómez Pérez A, Pleguezuelo M, Serrano Ruiz FJ, de la Mata M, Rodríguez-Perálvarez M. Helicobacter Species and Hepato-Biliary Tract Malignancies: A Systematic Review and Meta-Analysis. Cancers (Basel) 2023; 15:595. [PMID: 36765552 PMCID: PMC9913828 DOI: 10.3390/cancers15030595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Helicobacter species may cause chronic inflammation of the biliary tract, but its relationship with cancer is controversial. We performed a systematic review and meta-analysis to evaluate the association between Helicobacter species and hepatobiliary tract malignancies. Twenty-six studies (4083 patients) were included in qualitative synthesis, and 18 studies (n = 1895 qualified for meta-analysis. All studies were at high-intermediate risk of bias. Most studies combined several direct microbiological methods, mostly PCR (23 studies), culture (8 studies), and/or CLOtest (5 studies). Different specimens alone or in combination were investigated, most frequently bile (16 studies), serum (7 studies), liver/biliary tissue (8 studies), and gastric tissue (3 studies). Patients with Helicobacter species infection had an increased risk of hepatobiliary tract malignancies (OR = 3.61 [95% CI 2.18-6.00]; p < 0.0001), with high heterogeneity in the analysis (I2 = 61%; p = 0.0003). This effect was consistent when Helicobacter was assessed in bile (OR = 3.57 [95% CI 1.73-7.39]; p = 0.0006), gastric tissue (OR = 42.63 [95% CI 5.25-346.24]; p = 0.0004), liver/biliary tissue (OR = 4.92 [95% CI 1.90-12.76]; p = 0.001) and serum (OR = 1.38 [95% CI 1.00-1.90]; p = 0.05). Heterogeneity was reduced in these sub-analyses (I2 = 0-27%; p = ns), except for liver/biliary tissue (I2 = 57%; p = 0.02). In conclusion, based on low-certainty data, Helicobacter species chronic infection is associated with a tripled risk of hepatobiliary tract malignancy. Prospective studies are required to delineate public health interventions.
Collapse
Affiliation(s)
- Beatriz Gros
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research (IMIBIC), 14004 Córdoba, Spain
| | - Alberto Gómez Pérez
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
| | - María Pleguezuelo
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research (IMIBIC), 14004 Córdoba, Spain
| | - Francisco Javier Serrano Ruiz
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research (IMIBIC), 14004 Córdoba, Spain
| | - Manuel de la Mata
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research (IMIBIC), 14004 Córdoba, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Manuel Rodríguez-Perálvarez
- Department of Gastroenterology and Hepatology, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research (IMIBIC), 14004 Córdoba, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| |
Collapse
|
2
|
The validity evaluation of different 16srRNA gene primers for helicobacter detection urgently requesting to design new specific primers. Sci Rep 2022; 12:10737. [PMID: 35750699 PMCID: PMC9232570 DOI: 10.1038/s41598-022-14600-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/09/2022] [Indexed: 11/30/2022] Open
Abstract
Molecular diagnosis of helicobacters by PCR is simpler, more accurate, and feasible compared to other diagnostic methods. Validity and accuracy are highly dependent on the PCR primer design, diffusion time, and mutation rate of helicobacters. This study aimed to design 16srRNA -specific primers for Helicobacter spp. and H. pylori. Application of comparative statistical analysis of the diagnostic utility of the most available 16srRNA genus-specific primers. The new primers were designed using bioinformatics tools (MAFFT MSA and Gblocks command line). A comparative study was applied on nine genus-specific 16srRNA primers in comparison to the ConsH using in silico and laboratory evaluation. The results demonstrated that the best specificity and sensitivity of the primers designed for this study compared to other primers. The comparative study revealed that the heminested outer/inner primers were the worst. Although H276, 16srRNA(a), HeliS/Heli-nest, and Hcom had acceptable diagnostic utility, false positive and false negative results were obtained. Specificity testing on clinical samples indicated a surprising result; that H. pylori was not the sole enemy that we were looking for, but the Non-Helicobacter pylori Helicobacters should be considered as a real risk prognostic for gastric diseases, consequently, a specific diagnosis and treatment should be developed. This study concluded that our designed primers were the most specific and sensitive in comparison with other primers. In addition, in silico evaluation is not accurate enough for primer assessment and that the laboratory evaluation is mandatory.
Collapse
|
3
|
Ari A, Tatar C, Yarikkaya E. Relationship between Helicobacter pylori-positivity in the gallbladder and stomach and effect on gallbladder pathologies. J Int Med Res 2019; 47:4904-4910. [PMID: 31434515 PMCID: PMC6833382 DOI: 10.1177/0300060519847345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objective Helicobacter pylori commonly occurs in the stomach, but localizations outside the stomach and related diseases have also been investigated. However, the relationship between H. pylori and gallstones remains controversial. We aimed to investigate the relationships between H. pylori in the stomach and the gallbladder and gallstones. Methods This prospective case-control study included patients who underwent cholecystectomy because of gallstones, pancreatic head cancer, or hepatic resection. The patients were separated into two groups according to the detection of H. pylori in gallbladder samples using Giemsa staining. Stomach H. pylori status was based on previous gastroscopy. Results The study enrolled 60 patients, comprising 27 patients with gallstones and 33 without. There was no significant difference in the incidence of gallstones between patients with or without H. pylori in the stomach or gallbladder. Furthermore, the presence of H. pylori in the stomach was measured in 14 patients and was significantly correlated with H. pylori in the gallbladder. Conclusion The current study showed no relationship between the occurrence of gallstones and the presence of H. pylori in either the gallbladder or the stomach. In contrast to previous reports, this suggests that H. pylori does not play a role in the development of gallstones.
Collapse
Affiliation(s)
- Aziz Ari
- Istanbul Training and Research Hospital, Department of General Surgery, Istanbul, Turkey
| | - Cihad Tatar
- Istanbul Training and Research Hospital, Department of General Surgery, Istanbul, Turkey
| | - Enver Yarikkaya
- Istanbul Training and Research Hospital, Department of Pathology, Istanbul, Turkey
| |
Collapse
|
4
|
Takemura LS, Marcasso RA, Lorenzetti E, Alfieri AA, Bracarense APL. Helicobacter infection in the hepatobiliary system and hepatic lesions: a possible association in dogs. Braz J Microbiol 2018; 50:297-305. [PMID: 30637645 DOI: 10.1007/s42770-018-0003-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 07/11/2018] [Indexed: 12/25/2022] Open
Abstract
Helicobacter infection has been associated with hepatobiliary diseases in humans and animals. The aims of this study were to identify Helicobacter species in the hepatobiliary tract of dogs and to elucidate the possible association of these bacteria in liver diseases. Twenty-seven gastric and hepatobiliary samples were collected from 33 dogs with hepatic lesions and 17 dogs with no liver histological changes. Warthin-Starry staining, immunohistochemical assay, and PCR were performed to detect the presence of Helicobacter. Helicobacter genus was detected in 21.2% of the samples with hepatic lesions. The main lesion was chronic hepatitis. Immunohistochemistry revealed infection in liver (1/5) and gallbladder (1/3) 32 samples. The sequence analysis of seven amplicons of the 16S rRNA gene of Helicobacter genus from hepatobiliary samples showed 97.8 to 100% of nucleotide identity with gastric helicobacter. One amplicon of the ureA and ureB gene of Helicobacter genus from the stomach showed 89.1 to 90.7% nucleotide identity with H. heilmannii. The presence of Helicobacter genus in liver samples showing hepatic lesions suggests the involvement of these bacteria in the etiology of hepatobiliary disease in dogs. DNA sequences were similar to gastric Helicobacter species, reinforcing the hypothesis of bacterial translocation from the stomach to liver by the biliary pathway.
Collapse
Affiliation(s)
- L S Takemura
- Laboratory of Animal Pathology, School of Veterinary Medicine, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Londrina, Parana, 86057-970, Brazil
| | - R A Marcasso
- Laboratory of Animal Pathology, School of Veterinary Medicine, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Londrina, Parana, 86057-970, Brazil
| | - E Lorenzetti
- Laboratory of Animal Virology, School of Veterinary Medicine, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Londrina, Parana, 86057-970, Brazil
| | - A A Alfieri
- Laboratory of Animal Virology, School of Veterinary Medicine, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Londrina, Parana, 86057-970, Brazil
| | - A P L Bracarense
- Laboratory of Animal Pathology, School of Veterinary Medicine, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Londrina, Parana, 86057-970, Brazil.
| |
Collapse
|
5
|
Xu MY, Ma JH, Yuan BS, Yin J, Liu L, Lu QB. Association between Helicobacter pylori infection and gallbladder diseases: A retrospective study. J Gastroenterol Hepatol 2018; 33:1207-1212. [PMID: 29178198 DOI: 10.1111/jgh.14054] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 11/02/2017] [Accepted: 11/19/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM The association between Helicobacter pylori (H. pylori) and gallbladder diseases is still unclear and is controversial. We conducted a retrospective study to clarify the prevalence of gallbladder diseases and factors related to gallbladder diseases and relationships between H. pylori infection, gallstones, cholecystitis, and cholecystic polypus. METHODS The retrospective study was performed at the Aerospace Center Hospital in Beijing. The subjects in this study were a healthy population who underwent health examinations at the hospital between 2012 and 2015. The logistic regression models were used to explore the relationships between H. pylori infection and gallbladder diseases. RESULTS There were 7803 (43.4%) subjects with H. pylori infection, 995 (5.5%) with gallstones, 219 (1.2%) with cholecystitis, and 1003 (5.6%) with cholecystic polypus amongst 17 971 subjects, respectively. In subjects aged 45 years or less, the prevalence of gallstones in the H. pylori (+) group was lower than that in the H. pylori (-) group (odds ratio = 0.653; 95% confidence interval: 0.468-0.911; P = 0.012). The prevalence of cholecystic polypus in the H. pylori (+) group was significantly higher than that in the H. pylori (-) group (odds ratio = 1.160; 95% confidence interval: 1.012-1.328; P = 0.033). CONCLUSIONS Helicobacter pylori infection was related with cholecystic polypus and gallstones in a Chinese population.
Collapse
Affiliation(s)
- Mei-Yan Xu
- Department of Nutrition, Aerospace Center Hospital, Beijing, China
| | - Jia-Hui Ma
- Department of Laboratorial Science and Technology, School of Public Health Peking University, Beijing, China
| | - Bao-Shi Yuan
- Department of Health Management, Aerospace Center Hospital, Beijing, China
| | - Jian Yin
- Department of Nutrition, Aerospace Center Hospital, Beijing, China
| | - Lan Liu
- Department of Health Management, Aerospace Center Hospital, Beijing, China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology, School of Public Health Peking University, Beijing, China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, China
| |
Collapse
|
6
|
Cen L, Pan J, Zhou B, Yu C, Li Y, Chen W, Shen Z. Helicobacter Pylori infection of the gallbladder and the risk of chronic cholecystitis and cholelithiasis: A systematic review and meta-analysis. Helicobacter 2018; 23. [PMID: 29266548 DOI: 10.1111/hel.12457] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Helicobacter pylori is coexisted with various diseases, including chronic gastritis, ulcer, and gastric cancer. Besides, chronic cholecystitis and cholelithiasis are extremely widespread over the world, which are considered as high health-care cost burdens of digestive diseases. Epidemiologic evidence on Helicobacter pylori infection in gallbladder increasing the risk of biliary diseases has been contradictory. AIM Conduct a meta-analysis of overall studies and investigate an association between Helicobacter pylori infection of the gallbladder with chronic cholecystitis/cholelithiasis. METHODS We used PubMed, EMBASE, and Cochrane library databases to identify all published studies before August 2017. Pooled odds ratios (OR) and corresponding 95% confidence intervals (CIs) were obtained using the random effects model. Heterogeneity, sensitivity, and stratified analyses were also performed. RESULTS Eighteen studies involving 1544 participants and 1061 biliary cases with chronic cholecystitis/cholelithiasis were included. Helicobacter pylori infection of the gallbladder was significantly associated with an increased risk of chronic cholecystitis and cholecystitis (OR = 3.022; 95% CI, 1.897-4.815; I2 = 20.1%). In addition, country-based subgroup analysis also showed a positive association between Helicobacter pylori positivity and chronic cholecystitis/cholelithiasis risk. The ORs (95% CIs) for Asian and non-Asian region studies were 3.75 (1.83-7.71) and 2.25 (1.29-3.89), respectively. CONCLUSION This meta-analysis suggests that infection of the gallbladder with Helicobacter pylori is closely related to an increased risk of chronic cholecystitis and cholelithiasis.
Collapse
Affiliation(s)
- Li Cen
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| | - Jiaqi Pan
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| | - Boyan Zhou
- Department of Biostatistics and Computational Biology, School of Life Sciences, Fudan University, Shanghai, China
| | - Chaohui Yu
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| | - Youming Li
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| | - Weixing Chen
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| | - Zhe Shen
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China
| |
Collapse
|
7
|
Wongphutorn P, Chomvarin C, Sripa B, Namwat W, Faksri K. Detection and genotyping of Helicobacter pylori in saliva versus stool samples from asymptomatic individuals in Northeastern Thailand reveals intra-host tissue-specific H. pylori subtypes. BMC Microbiol 2018; 18:10. [PMID: 29378521 PMCID: PMC5789744 DOI: 10.1186/s12866-018-1150-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 01/21/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Two-thirds of the world's population is thought to be infected by Helicobacter pylori. Although most people infected with H. pylori are asymptomatic, this pathogen is associated with several gastric pathologies including cancer. The risk factors for colonization are still unclear and the genetic diversity within individual hosts has never been clearly investigated. RESULT This study determined the prevalence of, and explored risk factors for, H. pylori infection directly from paired saliva (n = 110) and stool (n = 110) samples from asymptomatic persons in Northeast Thailand. Samples were subjected to indirect immunofluorescence assay (IFA), 16S rRNA-based real-time PCR and vacA-based semi-nested PCR. Partial vacA gene sequences of H. pylori were compared between saliva and stool samples. The overall prevalence of H. pylori infection in our asymptomatic study population was 64%. Age, gender, occupation and frequency of brushing teeth were not found to be associated with H. pylori colonization. The vacA gene was successfully sequenced from both saliva and stool samples of 12 individuals. For seven of these individuals, saliva and stool sequences fell into different clusters on a phylogenetic tree, indicating intra-host genetic variation of H. pylori. CONCLUSION This study reports a high prevalence of H. pylori infection in asymptomatic persons in this region of Thailand and demonstrates that genotypes (vacA gene sequences) of H. pylori may differ between the oral cavity and intestinal tract.
Collapse
Affiliation(s)
- Phattharaphon Wongphutorn
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.,Liver Fluke and Cholangiocarcinoma Research Center, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chariya Chomvarin
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand. .,Liver Fluke and Cholangiocarcinoma Research Center, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Wises Namwat
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.,Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Kiatichai Faksri
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand. .,Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Khon Kaen University, Khon Kaen, 40002, Thailand.
| |
Collapse
|
8
|
Bragazzi MC, Ridola L, Safarikia S, Matteo SD, Costantini D, Nevi L, Cardinale V. New insights into cholangiocarcinoma: multiple stems and related cell lineages of origin. Ann Gastroenterol 2017; 31:42-55. [PMID: 29333066 PMCID: PMC5759612 DOI: 10.20524/aog.2017.0209] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/14/2017] [Indexed: 12/12/2022] Open
Abstract
Cholangiocarcinoma (CCA) is a heterogeneous group of malignancies that may develop at any level of the biliary tree. CCA is currently classified into intrahepatic (iCCA), perihilar (pCCA) and distal (dCCA) on the basis of its anatomical location. Notably, although these three CCA subtypes have common features, they also have important inter- and intra-tumor differences that can affect their pathogenesis and outcome. A unique feature of CCA is that it manifests in the hepatic parenchyma or large intrahepatic and extrahepatic bile ducts, furnished by two distinct stem cell niches: the canals of Hering and the peribiliary glands, respectively. The complexity of CCA pathogenesis highlights the need for a multidisciplinary, translational, and systemic approach to this malignancy. This review focuses on advances in the knowledge of CCA histomorphology, risk factors, molecular pathogenesis, and subsets of CCA.
Collapse
Affiliation(s)
- Maria Consiglia Bragazzi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Ridola
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Samira Safarikia
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Sabina Di Matteo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Daniele Costantini
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Nevi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Vincenzo Cardinale
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| |
Collapse
|
9
|
Cheng DD, He C, Ai HH, Huang Y, Lu NH. The Possible Role of Helicobacter pylori Infection in Non-alcoholic Fatty Liver Disease. Front Microbiol 2017; 8:743. [PMID: 28539915 PMCID: PMC5423951 DOI: 10.3389/fmicb.2017.00743] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 04/10/2017] [Indexed: 12/16/2022] Open
Abstract
Helicobacter pylori (H. pylori) which colonizes the stomach can cause a wide array of gastric disorders, including chronic gastritis, peptic ulcer, and gastric cancer. Recently, accumulating evidence has implicated H. pylori infection in extragastrointestinal diseases such as cardiovascular diseases, neurological disorders, and metabolic diseases. At the same time, many scholars have noted the relationship between H. pylori infection and non-alcoholic fatty liver disease (NAFLD). Despite the positive association between H. pylori and NAFLD reported in some researches, there are opposite perspectives denying their relationship. Due to high prevalence, unclear etiology and difficult treatment of NAFLD, confirming the pathogenicity of H. pylori infection in NAFLD will undoubtedly provide insights for novel treatment strategies for NAFLD. This paper will review the relationship between H. pylori infection and NAFLD and the possible pathogenic mechanisms.
Collapse
Affiliation(s)
- Dan-Dan Cheng
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang UniversityNanchang, China
| | - Cong He
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang UniversityNanchang, China
| | - Hong-Hui Ai
- Department of Orthopaedics, The Yugan County People's HospitalYugan, China
| | - Ying Huang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang UniversityNanchang, China
| | - Nong-Hua Lu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang UniversityNanchang, China
| |
Collapse
|
10
|
Prevalence of Helicobacter pylori cagA genotype among dyspeptic patients in Southern Thailand. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2014. [DOI: 10.1016/s2305-0500(14)60046-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
11
|
Wisessombat S, Meethai C, Hamgo S. A new biphasic test for the detection of Helicobacter pylori in gastric biopsies. J Microbiol Methods 2013; 96:19-24. [PMID: 24200709 DOI: 10.1016/j.mimet.2013.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 10/16/2013] [Accepted: 10/16/2013] [Indexed: 12/16/2022]
Abstract
The objective of this study was to create a biphasic cultural method for the detection of Helicobacter pylori in gastric biopsy specimens. The biphasic systems were made by using a urea agar slant with overlaying broth in a single vessel. Initially, three different liquid media including brain-heart infusion broth, Brucella broth, and Bolton broth were tested for their ability to support the growth of H. pylori. Bolton broth with 10% defibrinated horse blood demonstrated a significant increase in the numbers of H. pylori (p<0.05). The result showed that positive urease was used to concentrate viable H. pylori cells where the numbers of bacteria were 10(5)cfu. In addition, the reliable incubation time was at least 36h. In total, 55 biopsies were comparatively studied using commercial rapid urease test and PCR. Seven samples (12.72%) were positive with H. pylori by the biphasic test. With the CLOtest, 6 (10.91%) samples were positive. In conclusion, the Hp biphasic test achieved more positive samples than did the commercial rapid urease test.
Collapse
Affiliation(s)
- Sueptrakool Wisessombat
- School of Allied Health Sciences and Public Health, Walailak University, Tha Sala, Nakhon Si Thammarat 80161, Thailand.
| | - Chatruthai Meethai
- Faculty of Medical Technology, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Souvalak Hamgo
- Faculty of Medical Technology, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| |
Collapse
|
12
|
García A, Feng Y, Parry NMA, McCabe A, Mobley MW, Lertpiriyapong K, Whary MT, Fox JG. Helicobacter pylori infection does not promote hepatocellular cancer in a transgenic mouse model of hepatitis C virus pathogenesis. Gut Microbes 2013; 4:577-90. [PMID: 23929035 PMCID: PMC3928167 DOI: 10.4161/gmic.26042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) and hepatitis C virus (HCV) infect millions of people and can induce cancer. We investigated if H. pylori infection promoted HCV-associated liver cancer. Helicobacter-free C3B6F1 wild-type (WT) and C3B6F1-Tg(Alb1-HCVN)35Sml (HT) male and female mice were orally inoculated with H. pylori SS1 or sterile media. Mice were euthanized at ~12 mo postinoculation and samples were collected for analyses. There were no significant differences in hepatocellular tumor promotion between WT and HT mice; however, HT female mice developed significantly larger livers with more hepatic steatosis than WT female mice. H. pylori did not colonize the liver nor promote hepatocellular tumors in WT or HT mice. In the stomach, H. pylori induced more corpus lesions in WT and HT female mice than in WT and HT male mice, respectively. The increased corpus pathology in WT and HT female mice was associated with decreased gastric H. pylori colonization, increased gastric and hepatic interferon gamma expression, and increased serum Th1 immune responses against H. pylori. HT male mice appeared to be protected from H. pylori-induced corpus lesions. Furthermore, during gastric H. pylori infection, HT male mice were protected from gastric antral lesions and hepatic steatosis relative to WT male mice and these effects were associated with increased serum TNF-α. Our findings indicate that H. pylori is a gastric pathogen that does not promote hepatocellular cancer and suggest that the HCV transgene is associated with amelioration of specific liver and gastric lesions observed during concurrent H. pylori infection in mice.
Collapse
|
13
|
Boonyanugomol W, Chomvarin C, Hahnvajanawong C, Sripa B, Kaparakis-Liaskos M, Ferrero RL. Helicobacter pylori cag pathogenicity island (cagPAI) involved in bacterial internalization and IL-8 induced responses via NOD1- and MyD88-dependent mechanisms in human biliary epithelial cells. PLoS One 2013; 8:e77358. [PMID: 24143223 PMCID: PMC3797076 DOI: 10.1371/journal.pone.0077358] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 09/03/2013] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori infection has been proposed to be associated with various diseases of the hepatobiliary tract, including cancer of the bile duct epithelial cells (cholangiocarcinoma, CCA). The ability of H. pylori bacteria to cause pathogenic effects in these cells has, however, yet to be investigated. Given that the cag pathogenicity island (cagPAI) is required for H. pylori pathogenesis in gastric epithelial cells, we investigated wild-type and cag mutant strains for their ability to adhere, be internalized and induce pro-inflammatory responses in two bile duct epithelial cell lines derived from cases of CCA. The findings from these experiments were compared to results obtained with the well-characterized AGS gastric cancer cell line. We showed that the cagPAI encodes factors involved in H. pylori internalization in CCA cells, but not for adhesion to these cells. Consistent with previous studies in hepatocytes, actin polymerization and α5β1 integrin may be involved in H. pylori internalization in CCA cells. As for AGS cells, we observed significantly reduced levels of NF-κB activation and IL-8 production in CCA cells stimulated with either cagA, cagL or cagPAI bacteria, when compared with wild-type bacteria. Importantly, these IL-8 responses could be inhibited via either pre-treatment of cells with antibodies to α5β1 integrins, or via siRNA-mediated knockdown of the innate immune signaling molecules, nucleotide oligomerization domain 1 (NOD1) and myeloid differentiation response gene 88 (MyD88). Taken together, the data demonstrate that the cagPAI is critical for H. pylori pathogenesis in bile duct cells, thus providing a potential causal link for H. pylori in biliary tract disease.
Collapse
Affiliation(s)
- Wongwarut Boonyanugomol
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chariya Chomvarin
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- * E-mail:
| | - Chariya Hahnvajanawong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Maria Kaparakis-Liaskos
- Centre for Innate Immunity and Infectious Diseases, Monash Institute of Medical Research, Clayton, Victoria, Australia
| | - Richard L. Ferrero
- Centre for Innate Immunity and Infectious Diseases, Monash Institute of Medical Research, Clayton, Victoria, Australia
| |
Collapse
|
14
|
A comparative study of clinicopathological features between chronic cholecystitis patients with and without Helicobacter pylori infection in gallbladder mucosa. PLoS One 2013; 8:e70265. [PMID: 23936177 PMCID: PMC3728185 DOI: 10.1371/journal.pone.0070265] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 06/18/2013] [Indexed: 02/05/2023] Open
Abstract
Background Helicobacter pylori has been isolated from 10%–20% of human chronic cholecystitis specimens but the characteristics of “Helicobacter pylori positive cholecystitis” remains unclear. This study aims to compare the clinicopathological features between chronic cholecystitis patients with and without Helicobacter pylori infection in gallbladder mucosa. Methods Three hundred and twenty-six chronic cholecystitis patients were divided into two groups according to whether Helicobacter pylori could be detected by culture, staining or PCR for Helicobacter 16s rRNA gene in gallbladder mucosa. Positive samples were sequenced for Helicobacter pylori-specific identification. Clinical parameters as well as pathological characteristics including some premalignant lesions and the expression levels of iNOS and ROS in gallbladder were compared between the two groups. Results Helicobacter pylori infection in gallbladder mucosa was detected in 20.55% of cholecystitis patients. These patients had a higher prevalence of acid regurgitation symptoms (p = 0.001), more histories of chronic gastritis (p = 0.005), gastric ulcer (p = 0.042), duodenal ulcer (p = 0.026) and higher presence of Helicobacter pylori in the stomach as compared to patients without Helicobacter pylori infection in the gallbladder mucosa. Helicobacter pylori 16s rRNA in gallbladder and gastric-duodenal mucosa from the same individual patient had identical sequences. Also, higher incidences of adenomyomatosis (p = 0.012), metaplasia (p = 0.022) and higher enhanced expressions of iNOS and ROS were detected in Helicobacter pylori infected gallbladder mucosa (p<0.05). Conclusions Helicobacter pylori infection in gallbladder mucosa is strongly associated with Helicobacter pylori existed in stomach. Helicobacter pylori is also correlated with gallbladder premalignant lesions including metaplasia and adenomyomatosis. The potential mechanism might be related with higher ROS/RNS production but needs further investigation.
Collapse
|
15
|
Infections of Helicobacter spp. in the biliary system are associated with biliary tract cancer: a meta-analysis. Eur J Gastroenterol Hepatol 2013; 25:447-54. [PMID: 23470268 DOI: 10.1097/meg.0b013e32835c0362] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE As Helicobacter spp. have been successfully isolated from the biliary system, a hypothetical question was raised about the role of these organisms in the development of biliary tract cancer. This meta-analysis has been carried out to explore the association between Helicobacter spp. infection and biliary tract cancer. METHODS A systematic literature search was carried out to identify all eligible articles. Meta-analysis used odds ratio and a random-effect model, and 95% confidence intervals for odds ratios were calculated. Heterogeneity was quantitatively assessed using the χ-test, with significance set at a P-value of 0.01, and was measured using the I-statistic. RESULTS Ten studies published between 2002 and 2011 were finally included for meta-analysis. Helicobacter pylori, Helicobacter bilis, Helicobacter hepaticus, and Helicobacter ganmani were studied. With heterogeneity (I=0%, P=0.685), a significantly higher pooled infection rate of Helicobacter spp. was observed in the biliary tract cancer group compared with the normal group (P=0.0001) and the benign biliary disease group, respectively (P=0.0001). Studies from East Asia and South Asia showed a higher prevalence of Helicobacter spp. in the malignant group. Evidence supporting the higher presence of Helicobacter spp. in the cancer group was obtained using PCR and immunohistochemical analysis of specimens from bile and biliary tissues. CONCLUSION Our meta-analysis suggests a trend of a higher presence of Helicobacter spp. in patients with biliary tract cancers compared with normal controls or those with benign biliary diseases.
Collapse
|
16
|
Sakr SA, Badrah GA, Sheir RA. Histological and histochemical alterations in liver of chronic hepatitis C patients with Helicobacter pylori infection. Biomed Pharmacother 2013; 67:367-74. [PMID: 23659901 DOI: 10.1016/j.biopha.2013.03.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 03/03/2013] [Indexed: 02/07/2023] Open
Abstract
Hepatitis C is an infectious disease affecting the liver. Chronic infection can progress fibrosis and cirrhosis, liver failure or liver cancer. Helicobacter pylori (H. pylori) is a spiral bacterium infects the stomach of more than 50% of the human population worldwide. H. pylori DNA has been identified in human livers and has been implicated in chronic liver disease and liver cancer. The present work was aimed to study the histological and histochemical alterations in liver of HCV patients with or without H. pylori infection. Immunohistochemical detection of H. pylori showed positive reactivity in 62 biopsies out of 100 biopsies (38% HCV patients and 62% HCV patients coinfected with H. pylori). Histological examination of liver of HCV patients showed microvesicular and macrovesicular steatosis, lymphocytic infiltrations, fibrosis and cirrhosis. Cirrhotic nodules and impairment of hepatic parenchyma were common in HCV patients coinfected with H. pylori. HCV patients coinfected with H. pylori recorded higher NIC score and pronounced fibrosis stages than HCV patients. Glycogen and total proteins decreased in hepatocytes and cirrhotic nodules in HCV patients. Such decrease was marked in liver of HCV patients coinfected with H. pylori. So it is recommended to perform a complete analysis for H. pylori in HCV patients suggesting that it will help in therapy of this disease.
Collapse
Affiliation(s)
- Saber A Sakr
- Zoology Department, Faculty of Science, Menoufia University, Menoufia, Egypt.
| | | | | |
Collapse
|
17
|
Boonyanugomol W, Chomvarin C, Sripa B, Chau-in S, Pugkhem A, Namwat W, Wongboot W, Khampoosa B. Molecular analysis of Helicobacter pylori virulent-associated genes in hepatobiliary patients. HPB (Oxford) 2012; 14:754-63. [PMID: 23043664 PMCID: PMC3482671 DOI: 10.1111/j.1477-2574.2012.00533.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The Helicobacter pylori virulence-associated genes in hepatobiliary patients, including vacA, iceA, babA2, cagA and cagE, have not been reported. The aim of this study was to investigate these genes and the association of those and the clinical outcomes in hepatobiliary diseases. METHODS Eighty H. pylori-PCR-positive cases were obtained from hepatobiliary patients, representing both cholangiocarcinoma (CCA) (n= 58) and cholelithiasis (n= 22). The diversity of virulence genes was examined by polymerase chain reaction and DNA sequencing. Phylogenetic analysis of cagA was determined using the maximum parsimony method. RESULTS The vacAs1a + c/m1, iceA1 and babA2 genes were the most predominant genotypes in both CCA and cholelithiasis patients. The cagA and cagE genes were found significantly more frequently in patients with CCA than those with cholelithiasis (P < 0.05). The cagA positive samples were the Western-type cagA and showed that almost all of the detected sequences in Thai hepatobiliary and Thai gastric cancer patients were classified in the same cluster but separated from the cluster of Japan and other countries. CONCLUSIONS The cagA and cagE genes may be associated in the pathogenesis of hepatobiliary diseases, especially of CCA. Besides the bacterial variation, other host factors may be involved in the pathogenesis of hepatobiliary cancer.
Collapse
Affiliation(s)
- Wongwarut Boonyanugomol
- Department of MicrobiologyKhon Kaen,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen
| | - Chariya Chomvarin
- Department of MicrobiologyKhon Kaen,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen
| | - Banchob Sripa
- Department of PathologyKhon Kaen,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen
| | - Siri Chau-in
- Department of SurgeryKhon Kaen,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen
| | - Ake Pugkhem
- Department of SurgeryKhon Kaen,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen
| | | | | | - Bandit Khampoosa
- School of Bioinformatics and Systems Biology, King Mongkut's University of Technology ThonburiBangkok, Thailand
| |
Collapse
|
18
|
Aituov B, Duisembekova A, Bulenova A, Alibek K. Pathogen-driven gastrointestinal cancers: Time for a change in treatment paradigm? Infect Agent Cancer 2012; 7:18. [PMID: 22873119 PMCID: PMC3508868 DOI: 10.1186/1750-9378-7-18] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 07/27/2012] [Indexed: 02/06/2023] Open
Abstract
The regulation of cancerous tumor development is converged upon by multiple pathways and factors. Besides environmental factors, gastrointestinal (GI) tract cancer can be caused by chronic inflammation, which is generally induced by bacteria, viruses, and parasites. The role of these inducers in cancer development, cell differentiation and transformation, cell cycle deregulation, and in the expression of tumor-associated genes cannot be ignored. Although Helicobacter pylori activates many oncogenic pathways, particularly those in gastric and colorectal cancers, the role of viruses in tumor development is also significant. Viruses possess significant oncogenic potential to interfere with normal cell cycle control and genome stability, stimulating the growth of deregulated cells. An increasing amount of recent data also implies the association of GI cancers with bacterial colonization and viruses. This review focuses on host-cell interactions that facilitate primary mechanisms of tumorigenesis and provides new insights into novel GI cancer treatments.
Collapse
Affiliation(s)
- Bauyrzhan Aituov
- Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Assem Duisembekova
- Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Assel Bulenova
- Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Kenneth Alibek
- Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
- Republican Scientific Center for Emergency Care, 3 Kerey and Zhanibek Khan Street, Astana 010000, Kazakhstan
| |
Collapse
|
19
|
Esmat G, El-Bendary M, Zakarya S, Ela MA, Zalata K. Role of Helicobacter pylori in patients with HCV-related chronic hepatitis and cirrhosis with or without hepatocellular carcinoma: possible association with disease progression. J Viral Hepat 2012; 19:473-9. [PMID: 22676359 DOI: 10.1111/j.1365-2893.2011.01567.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The discovery of Helicobacter hepaticus as a causal agent of hepatitis and hepatocellular carcinoma (HCC) in mice has stimulated interest in looking for Helicobacter species in human liver samples. In this study, we searched for association between H. pylori and HCV-related liver disease. Liver specimens were collected from eighty-five patients; they were divided into five different groups according to liver pathology (METAVIR system). Group I (the 1st control group) consisted of 16 patients with chronic hepatitis C without histological activity. Group II consisted of 25 patients with chronic active hepatitis C, Group III, 17 patients with HCV-related cirrhosis and Group IV, 16 patients with HCV-related cirrhosis and HCC. Group V (2nd control group) consisted of 11 patients suffering from gastro duodenal and gall bladder diseases but negative for HCV. All cases were tested by polymerase chain reaction on liver samples for the presence of H. pylori DNA Cag A gene. Routine biochemical, radiological and RT-PCR for HCV RNA were also performed for all cases. The positivity of H. pylori PCR CagA gene in liver tissue was directly proportional to the severity of liver pathology, this being 75%, 52.9% and 32% in groups IV, III and II, respectively, which was more significant than the 1st and 2nd control groups (P < 0.001). There was a significant difference between H. pylori PCR values when compared to METAVIR staging (F) in different groups (P = 0.001). Helicobacter pylori PCR (Cag A gene) was positive in about 28.2% cases of late fibrosis (F3 + F4) while positivity was (5.9%) in early fibrosis (F1 + F2) (P = 0.0001). There was significant difference between H. pylori PCR (Cag A gene) in liver tissue and METAVIR activity in different groups (P = 0.002) as most of H. pylori PCR-positive cases were METAVIR activity A1 and A2 (15.3% and 12.9%, respectively). There was no association between H. pylori PCR and quantitative HCV RNA (P = 0.531). Also there was no significant difference of Child-Pugh staging in the H. pylori PCR-positive group when compared to the negative group (P = 0.996). There may be an association between the presence of H. pylori (Cag A gene) in the liver and disease progression in HCV-related chronic hepatitis and cirrhosis with and without HCC.
Collapse
Affiliation(s)
- G Esmat
- Department of Tropical Medicine, Cairo University Hospital, Cairo Faculty of Medicine, Cairo, Egypt
| | | | | | | | | |
Collapse
|
20
|
Boonyanugomol W, Chomvarin C, Sripa B, Bhudhisawasdi V, Khuntikeo N, Hahnvajanawong C, Chamsuwan A. Helicobacter pylori in Thai patients with cholangiocarcinoma and its association with biliary inflammation and proliferation. HPB (Oxford) 2012; 14:177-84. [PMID: 22321036 PMCID: PMC3371200 DOI: 10.1111/j.1477-2574.2011.00423.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To investigate whether Helicobacter spp. infection and the cagA of H. pylori are associated with hepatobiliary pathology, specifically biliary inflammation, cell proliferation and cholangiocarcinoma (CCA). METHODS Helicobacter species including H. pylori, H. bilis and H. hepaticus were detected in the specimens using the polymerase chain reaction (PCR). Biliary inflammation of the liver and gallbladders was semi-quantitatively graded on hematoxylin and eosin (H&E)-stained slides. Biliary proliferation was evaluated by immunohistochemistry using the Ki-67-labelling index. RESULTS Helicobacter pylori was found in 66.7%, 41.5% and 25.0% of the patients in the CCA, cholelithiasis and control groups (P < 0.05), respectively. By comparison, H. bilis was found in 14.9% and 9.4% of the patients with CCA and cholelithiasis, respectively (P > 0.05), and was absent in the control group. The cagA gene of H. pylori was detected in 36.2% and 9.1% of the patients with CCA and cholelithiasis, respectively (P < 0.05). Among patients with CCA, cell inflammation and proliferation in the liver and gallbladder were significantly higher among those DNA H. pylori positive than negative. CONCLUSIONS The present findings suggest that H. pylori, especially the cagA-positive strains, may be involved in the pathogenesis of hepatobiliary diseases, especially CCA through enhanced biliary cell inflammation and proliferation.
Collapse
Affiliation(s)
- Wongwarut Boonyanugomol
- Department of Microbiology, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Chariya Chomvarin
- Department of Microbiology, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Vajarabhongsa Bhudhisawasdi
- Department of Surgery, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Narong Khuntikeo
- Department of Surgery, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Chariya Hahnvajanawong
- Department of Microbiology, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand,Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| | - Amporn Chamsuwan
- Department of Forensic Medicine, Faculty of Medicine, Khon Kaen UniversityKhon Kaen, Thailand
| |
Collapse
|
21
|
Boonyanugomol W, Chomvarin C, Sripa B, Bhudhisawasdi V, Khuntikeo N, Hahnvajanawong C, Chamsuwan A. Helicobacter pylori in Thai patients with cholangiocarcinoma and its association with biliary inflammation and proliferation. HPB (Oxford) 2012. [PMID: 22321036 DOI: 10.1111/j.1477-574.2011.00423.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To investigate whether Helicobacter spp. infection and the cagA of H. pylori are associated with hepatobiliary pathology, specifically biliary inflammation, cell proliferation and cholangiocarcinoma (CCA). METHODS Helicobacter species including H. pylori, H. bilis and H. hepaticus were detected in the specimens using the polymerase chain reaction (PCR). Biliary inflammation of the liver and gallbladders was semi-quantitatively graded on hematoxylin and eosin (H&E)-stained slides. Biliary proliferation was evaluated by immunohistochemistry using the Ki-67-labelling index. RESULTS Helicobacter pylori was found in 66.7%, 41.5% and 25.0% of the patients in the CCA, cholelithiasis and control groups (P < 0.05), respectively. By comparison, H. bilis was found in 14.9% and 9.4% of the patients with CCA and cholelithiasis, respectively (P > 0.05), and was absent in the control group. The cagA gene of H. pylori was detected in 36.2% and 9.1% of the patients with CCA and cholelithiasis, respectively (P < 0.05). Among patients with CCA, cell inflammation and proliferation in the liver and gallbladder were significantly higher among those DNA H. pylori positive than negative. CONCLUSIONS The present findings suggest that H. pylori, especially the cagA-positive strains, may be involved in the pathogenesis of hepatobiliary diseases, especially CCA through enhanced biliary cell inflammation and proliferation.
Collapse
|
22
|
Zhou D, Zhang Y, Gong W, Mohamed SO, Ogbomo H, Wang X, Liu Y, Quan Z. Are Helicobacter pylori and other Helicobacter species infection associated with human biliary lithiasis? A meta-analysis. PLoS One 2011; 6:e27390. [PMID: 22087306 PMCID: PMC3210793 DOI: 10.1371/journal.pone.0027390] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 10/16/2011] [Indexed: 02/06/2023] Open
Abstract
Background Since the isolation of Helicobacter species in biliary system, a hypothetical question was raised about the role of these agents in the development of cholelithiasis. This meta-analysis is to explore the association between the Helicobacter infection and biliary lithiasis. Methodology/Principal Findings A systematic literature search was performed to identify all eligible articles. Meta-analysis which was carried out using odds ratio and random effect model, 95% confidence intervals for odds ratio was calculated. Quantitative assessment of heterogeneity was explored by chi-square test with significance set at P value 0.10 and was measured using I2 statistic. Eighteen studies published between 1998 and 2011 were finally eligible for meta-analysis. H. Pylori, H. Bilis, H. Hepaticus, H. Pullorum and H. Ganmani were studied. With heterogeneity (I2 = 69.5%, P<0.0001), significantly higher pooled infection rates of H. Pylori (OR: 2.59, 35.82% versus 26.75%, P = 0.01) and H. Hepaticus (OR: 3.13, 31.30% versus 12.12%, P = 0.02) were observed in lithiasis group. Higher prevalence of H. Pylori in cholelithiasis patients were reported by studies from East Asia, South Asia and South America. Evidences supporting the higher presence of H. Pylori in cholelithiasis patients could be found by PCR for detecting 16s rRNA in bile, 26kDa protein gene in biliary tissue and immunohistochemistry. Using multiple detection tests could increase the detection rate of H. Pylori. Conclusions/Significances Our meta-analysis suggests a trend of higher presence of H. Pylori in cholelithiasis patients than control group and this trend was significant in the regions with higher prevalence of this agent. Evidences supporting the association between Helicobacter and cholelithiasis could be found by using different tests but the gold standard for the identification of these bacteria in biliary system has yet to be established. Considering obvious heterogeneity, a large multi-center study will facilitate us to further clarify the association between the Helicobacter infection and cholelithiasis.
Collapse
Affiliation(s)
- Di Zhou
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
| | - Yong Zhang
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
| | - Wei Gong
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
| | - Sayid Omar Mohamed
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
| | - Henry Ogbomo
- Departments of Oncology, Biochemistry and Molecular Biology, Faculty of Medicine, Southern Alberta Cancer Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Xuefeng Wang
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
| | - Yingbin Liu
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
- * E-mail: (ZWQ); (YBL)
| | - Zhiwei Quan
- Department of General Surgery, School of Medicine, Xinhua Hospital, Shanghai JiaoTong University, Shanghai, People's Republic of China
- * E-mail: (ZWQ); (YBL)
| |
Collapse
|
23
|
Role of cagA-positive Helicobacter pylori on cell proliferation, apoptosis, and inflammation in biliary cells. Dig Dis Sci 2011; 56:1682-92. [PMID: 21181444 DOI: 10.1007/s10620-010-1512-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 11/19/2010] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS The pathogenesis of Helicobacter pylori in the human hepatobiliary system has not been clearly elucidated. We compared the effects of H. pylori cagA(+) and cagA(-) mutant strains on cell proliferation, apoptosis, and inflammation in a cholangiocarcinoma (CCA) cell line (KKU-100). METHODS MTT and BrdU were used to determine cell viability and DNA synthesis, respectively. The results were further investigated by RT-PCR and Western-blot analysis. The production of interleukin-8 (IL-8) was measured by ELISA assay. RESULTS At low H. pylori inocula (cell-bacteria ratio of 1:1), the H. pylori cagA(+) strain showed a significant stimulation in KKU-100 cell growth (109 ± 1.79%) and DNA synthesis (131 ± 3.39%) than did the H. pylori cagA(-) strain (95 ± 3.06% and 120 ± 2.32%, respectively), through activation of the anti-apoptotic bcl-2 gene, MAP kinase and NF- κB cascade. By contrast, at high H. pylori inocula (cell-bacteria ratio of 1:200), the H. pylori cagA(+) strain showed a significant reduction in KKU-100 cell survival (49 ± 2.47%) and DNA synthesis (49 ± 1.14%) than did the H. pylori cagA(-) strain (60 ± 1.30% and 75 ± 4.00%, respectively), by increased iNOS, p53 and bax, while decreased bcl-2. Additionally, caspase-8 and -3 protein were activated. The H. pylori cagA (+) strain had significantly stronger effect on IL-8 production than did the cagA(-) strain. CONCLUSIONS These results suggest that the H. pylori cagA(+) strain may play an important role in the development of biliary cancer by disturbing cell proliferation, apoptosis, and promoting cell inflammation in the CCA cell line.
Collapse
|
24
|
Casswall TH, Németh A, Nilsson I, Wadström T, Nilsson HO. Helicobacter species DNA in liver and gastric tissues in children and adolescents with chronic liver disease. Scand J Gastroenterol 2010; 45:160-7. [PMID: 20095882 DOI: 10.3109/00365520903426915] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Enterohepatic Helicobacter species (EHS) have previously been found in adults with hepatobiliary diseases. Here, we report the prevalence of Helicobacter pylori and EHS in liver and gastric tissue in children and adolescents with chronic liver disease (CLD). MATERIAL AND METHODS Seventy-seven consecutive children and adolescents with CLD with or without ulcerative colitis or Crohn's disease (UC/CD) were investigated. Tissue samples were analysed using a Helicobacter genus-specific 16S rDNA polymerase chain reaction (PCR) assay and DNA-sequence analysis. Sera from 61 subjects were also analysed using enzyme immunoassay and immunoblotting. RESULTS The Helicobacter PCR was positive in 3/23 (13%) livers from patients with primary sclerosing cholangitis and UC, and in 1/2 livers from patients with autoimmune hepatitis (AIH) and UC. Sequenced PCR products matched the 16S rDNA of H. hepaticus, H. muridarum, H. canis, and H. pylori, respectively. H. ganmani and H. bilis were detected in gastric tissues from two AIH patients. H. hepaticus and H. pullorum were found in livers from two patients with acute liver failure and intrahepatic cholestasis. Antibody reactivity to Helicobacter cell-surface proteins was negative. CONCLUSIONS H. pylori and EHS can be detected in the livers of some patients with UC and concomitant liver disease, as well as in other children with liver diseases. Multicentre studies from different locations are needed to find out whether these bacteria play a pathogenetic role or whether their presence is an epiphenomenon.
Collapse
Affiliation(s)
- Thomas H Casswall
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren's Children's Hospital at Karolinska University Hospital, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
| | | | | | | | | |
Collapse
|
25
|
Abstract
Helicobacter species have been found in human bile and biliary tract (BT) tissue and are suspected to cause BT diseases, including gallbladder and extrahepatic cancers, collectively referred to in this work as BT cancers. We conducted a literature review of the epidemiological evidence linking the presence of Helicobacter species in bile or BT biopsies to BT cancers and benign diseases. Reports showed great variability with respect to study methods. Nine studies of BT cancers were identified, all with 30 or fewer BT cancers; eight included cancer-free control subjects and used polymerase chain reaction (PCR) as a means of Helicobacter species detection. In four of these studies, Helicobacter species were detected in patients with BT cancer significantly more frequently than in controls, at least when controls without BT diseases were used. In two studies, no Helicobacter species were detected in either cases or controls. Helicobacter species were also often detected in benign BT diseases such as gallstone disease or chronic cholecystitis. As our current knowledge relies on a few small studies that showed substantial differences, larger studies and more standardised protocols for detecting DNA and antibodies against Helicobacter species are needed to investigate a potential association with BT cancer.
Collapse
|
26
|
Identification of a bile-induced exopolysaccharide required for Salmonella biofilm formation on gallstone surfaces. Infect Immun 2008; 76:5341-9. [PMID: 18794278 DOI: 10.1128/iai.00786-08] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Salmonella enterica serovar Typhi can establish a chronic, asymptomatic infection of the human gallbladder, suggesting that this bacterium utilizes novel mechanisms to mediate enhanced colonization and persistence in a bile-rich environment. Gallstones are one of the most important risk factors for developing carriage, and we have previously demonstrated that salmonellae form biofilms on human gallstones in vitro. Thus, we hypothesize that bile-induced biofilms on gallstone surfaces promote gallbladder colonization and maintenance of the carrier state. A colanic acid/cellulose S. enterica serovar Typhimurium double mutant formed a mature biofilm on gallstones in a test tube assay and in a new, gallstone-independent assay using cholesterol-coated Eppendorf tubes. These data suggest the presence of an unidentified exopolysaccharide necessary for mature biofilm development and demonstrate specific binding affinity between salmonellae and cholesterol. Our experiments indicate that the Salmonella O-antigen capsule (yihU-yshA and yihV-yihW) is a crucial determinant in gallstone and cholesterol biofilms but that expression of this exopolysaccharide is not necessary for binding to glass or plastic. Real-time PCR revealed that growth in bile resulted in upregulation of the O-antigen capsule-encoding operon in an agfD-independent manner. Thus, the O-antigen capsule genes are bile induced, and the capsule produced by the enzymes of this operon is specifically required for biofilm formation on cholesterol gallstones. These studies provide new therapeutic targets for preventing asymptomatic serovar Typhi gallbladder carriage.
Collapse
|
27
|
Pellicano R, Ménard A, Rizzetto M, Mégraud F. Helicobacter species and liver diseases: association or causation? THE LANCET. INFECTIOUS DISEASES 2008; 8:254-60. [DOI: 10.1016/s1473-3099(08)70066-5] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
28
|
Identification of Helicobacter species by 16S rDNA PCR and sequence analysis in human liver samples from patients with various etiologies of benign liver diseases. Eur J Gastroenterol Hepatol 2008; 20:33-6. [PMID: 18090988 DOI: 10.1097/meg.0b013e3282efa4f2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND/AIMS Several reports indicated an increased prevalence of the Helicobacter species in hepatocellular cancer tissue and in liver samples infected with hepatitis viruses. The frequency of Helicobacter spp. in benign liver diseases was, however, not thoroughly investigated. METHODS Seventy-five consecutive patients with suspected liver disease were enrolled. The indications were hepatitis B virus (n=30), C virus (n=8), B and C dual infection (n=1), nonalcoholic steatohepatitis (n=27), autoimmune hepatitis (n=3), primary biliary cirrhosis (n=1) and idiopathic elevation of liver enzymes (n=5). PCR detection of 16S recombinant RNA gene of Helicobacter spp. was performed on liver samples. PCR products of positive samples were further identified by DNA sequencing. The patients also had upper gastrointestinal endoscopy and gastric biopsy for the detection of H. pylori using histopathology and PCR. RESULTS Helicobacter spp. DNA was detected in two out of 75 liver biopsy samples (2.6%), which were typed as H. pylori by DNA sequencing. One of these patients had chronic hepatitis C infection (man, 51 years old) and the other had nonalcoholic steatohepatitis (woman, 44 years old). Fifty-two out of 75 of the patients (69.3%) had H. pylori infection in their stomachs. CONCLUSION We have found that H. pylori infection is much less prevalent in benign liver diseases. The presence of H. pylori in nonalcoholic steatohepatitis (NASH) patients is a novel finding and this finding should be confirmed in a larger series.
Collapse
|
29
|
Welzel TM, Graubard BI, El-Serag HB, Shaib YH, Hsing AW, Davila JA, McGlynn KA. Risk factors for intrahepatic and extrahepatic cholangiocarcinoma in the United States: a population-based case-control study. Clin Gastroenterol Hepatol 2007; 5:1221-8. [PMID: 17689296 PMCID: PMC2083573 DOI: 10.1016/j.cgh.2007.05.020] [Citation(s) in RCA: 353] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Intrahepatic and extrahepatic cholangiocarcinomas are rare and highly malignant cancers of the bile duct. Although the incidence of extrahepatic cholangiocarcinoma (ECC) has remained constant, the incidence of intrahepatic cholangiocarcinoma (ICC) has increased in the United States. Because the etiology of both tumors is poorly understood, a population-based case-control study was conducted to examine the association of ECC and ICC with preexisting medical conditions. METHODS Medical conditions among 535 ICC patients, 549 ECC patients (diagnosed 1993-1999), and 102,782 cancer-free controls were identified by using the Surveillance, Epidemiology and End Results-Medicare databases. Logistic regression analysis was used to calculate adjusted odds ratios. RESULTS In addition to established risk factors (choledochal cysts, cholangitis, inflammatory bowel disease), several other conditions were significantly associated with ECC and ICC: biliary cirrhosis (ECC, ICC: P < .001), cholelithiasis (ECC, ICC: P < .001), alcoholic liver disease (ECC, P < .001; ICC, P = .01), nonspecific cirrhosis (ECC, ICC: P < .001), diabetes (ECC, ICC: P < .001), thyrotoxicosis (ECC, P = .006; ICC, P = .04), and chronic pancreatitis (ECC, ICC: P < .001). Conditions only associated with ICC were obesity (ECC, P = .71; ICC, P = .01), chronic nonalcoholic liver disease (ECC, P = .08; ICC, P = .02), HCV infection (ECC, P = .67; ICC, P = .01), and smoking (ECC, P = .07; ICC, P = .04). CONCLUSIONS Several novel associations with ECC and ICC were identified. HCV infection, chronic nonalcoholic liver disease, and obesity, all of which are increasing in incidence, and smoking were associated only with ICC, suggesting that these conditions might explain the divergent incidence trends of the tumors.
Collapse
Affiliation(s)
- Tania M. Welzel
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Barry I. Graubard
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Hashem B. El-Serag
- Sections of Health Services Research and Gastroenterology, Michael E. Debakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas
| | - Yasser H. Shaib
- Sections of Health Services Research and Gastroenterology, Michael E. Debakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas
| | - Ann W. Hsing
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Jessica A. Davila
- Sections of Health Services Research and Gastroenterology, Michael E. Debakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas
| | - Katherine A. McGlynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| |
Collapse
|
30
|
Abstract
A growing interest in non-invasive tests for the detection of Helicobacter pylori has been observed recently, reflecting a large number of studies published this year. New tests have been validated, and the old ones have been used in different clinical situations or for different purposes. Stool antigen tests have been extensively evaluated in pre- and post-treatment settings both in adults and children, and the urea breath test has been studied as a predictor of bacterial load, severity of gastric inflammation, and response to eradication treatment. Several studies have also explored the usefulness of some serologic markers as indicators of the gastric mucosa status. With regard to invasive tests, molecular methods are being used more and more, but the breakthrough this year was the direct in vivo observation of H. pylori during endoscopy.
Collapse
|