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Huang X, Zhang DY, Li D, Lv Y, Chen S, Bai F. Human gastric microbiota analysis of refractory H. pylori infection. Sci Rep 2024; 14:15619. [PMID: 38972876 PMCID: PMC11228035 DOI: 10.1038/s41598-024-66339-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/01/2024] [Indexed: 07/09/2024] Open
Abstract
H. pylori infection is gaining increasing attention, but detailed investigations into its impact on gastric microbiota remain limited. We collected gastric mucosa samples from 47 individuals divided into three groups: 1. Group HP: patients with initial positive H. pylori infection (25 cases); 2. Group ck: H. pylori-negative patients (14 cases); 3. Group DiffHP: patients with refractory H. pylori infection (8 cases). The samples were analyzed using 16S rDNA sequencing and functional prediction with PICRUSt. Group HP showed differences in flora distribution and function compared to Group ck, while Group DiffHP overlapped with Group HP. The abundances of Aeromonas piscicola, Shewanella algae, Vibrio plantisponsor, Aeromonas caviae, Serratia marcescens, Vibrio parahaemolyticus, Microbacterium lacticum, and Prevotella nigrescens were significantly reduced in both Group DiffHP and Group HP compared to Group ck. Vibrio shilonii was reduced only in Group DiffHP compared to Group ck, while Clostridium perfringens and Paracoccus marinus were increased only in Group DiffHP. LEfSe analysis revealed that Clostridium perfringens and Paracoccus marinus were enriched, whereas Vibrio shilonii was reduced in Group DiffHP compared to Group ck at the species level. In individuals with refractory H. pylori infection, the gastric microbiota exhibited enrichment in various human diseases, organic systems, and metabolic pathways (amino acid metabolism, carbohydrate metabolism, transcription, replication and repair, cell cycle pathways, and apoptosis). Patients with multiple failed H. pylori eradication exhibited significant changes in the gastric microbiota. An increase in Clostridium perfringens and Paracoccus marinus and a decrease in Vibrio shilonii appears to be characteristic of refractory H. pylori infection.
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Affiliation(s)
- Xianfeng Huang
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Da-Ya Zhang
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Da Li
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Yanting Lv
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Shiju Chen
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Feihu Bai
- Department of Gastroenterology, The Second Affiliated Hospital of Hainan Medical University, Yehai Avenue, #368, Longhua District, Haikou, 570216, Hainan Province, China.
- The Gastroenterology Clinical Medical Center of Hainan Province, Haikou, 570216, China.
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2
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You HS, Park JY, Seo H, Kim BJ, Kim JG. Increasing correlation between oral and gastric microbiota during gastric carcinogenesis. Korean J Intern Med 2024; 39:590-602. [PMID: 38910513 PMCID: PMC11236816 DOI: 10.3904/kjim.2023.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 06/25/2024] Open
Abstract
BACKGROUND/AIMS Recent research has increasingly focused on the role of the gastric microbiome in the development of gastric cancer. We aimed to investigate the changes in the microbiome during gastric carcinogenesis in structural and functional aspects, with a specific focus on the association between oral and gastric microbiomes. METHODS We collected saliva, gastric juice, and gastric tissue samples from 141 patients at different stages of gastric carcinogenesis and processed them for microbiome analysis using 16S rRNA gene profiling. The alpha and beta diversities were analyzed, and the differences in microbiome composition and function profiles were analyzed among the groups, as well as the correlation between changes in the oral and gastric microbiomes during carcinogenesis. RESULTS We observed significant differences in microbial diversity and composition between the disease and control groups, primarily in the gastric juice. Specific bacterial strains, including Schaalia odontolytica, Streptococcus cristatus, and Peptostreptococcus stomatis, showed a significant increase in abundance in the gastric juice in the low-grade dysplasia and gastric cancer groups. Notably, the correlation between the oral and gastric microbiota compositions, increased as the disease progressed. Predictive analysis of the metagenomic functional profiles revealed changes in functional pathways that may be associated with carcinogenesis (ABC transport and two-component systems). CONCLUSION During gastric carcinogenesis, the abundance of oral commensals associated with cancer increased in the stomach. The similarity in microbial composition between the stomach and oral cavity also increased, implying a potential role of oral-gastric bacterial interactions in gastric cancer development.
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Affiliation(s)
- Hee Sang You
- Laboratory of Gastrointestinal Mucosal Immunology, Chung-Ang University College of Medicine, Seoul,
Korea
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul,
Korea
| | - Jae Yong Park
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul,
Korea
| | - Hochan Seo
- Laboratory of Gastrointestinal Mucosal Immunology, Chung-Ang University College of Medicine, Seoul,
Korea
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul,
Korea
| | - Beom Jin Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul,
Korea
| | - Jae Gyu Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul,
Korea
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3
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Lu W, Aihaiti A, Abudukeranmu P, Liu Y, Gao H. Unravelling the role of intratumoral bacteria in digestive system cancers: current insights and future perspectives. J Transl Med 2024; 22:545. [PMID: 38849871 PMCID: PMC11157735 DOI: 10.1186/s12967-024-05320-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 05/18/2024] [Indexed: 06/09/2024] Open
Abstract
Recently, research on the human microbiome, especially concerning the bacteria within the digestive system, has substantially advanced. This exploration has unveiled a complex interplay between microbiota and health, particularly in the context of disease. Evidence suggests that the gut microbiome plays vital roles in digestion, immunity and the synthesis of vitamins and neurotransmitters, highlighting its significance in maintaining overall health. Conversely, disruptions in these microbial communities, termed dysbiosis, have been linked to the pathogenesis of various diseases, including digestive system cancers. These bacteria can influence cancer progression through mechanisms such as DNA damage, modulation of the tumour microenvironment, and effects on the host's immune response. Changes in the composition and function within the tumours can also impact inflammation, immune response and cancer therapy effectiveness. These findings offer promising avenues for the clinical application of intratumoral bacteria for digestive system cancer treatment, including the potential use of microbial markers for early cancer detection, prognostication and the development of microbiome-targeted therapies to enhance treatment outcomes. This review aims to provide a comprehensive overview of the pivotal roles played by gut microbiome bacteria in the development of digestive system cancers. Additionally, we delve into the specific contributions of intratumoral bacteria to digestive system cancer development, elucidating potential mechanisms and clinical implications. Ultimately, this review underscores the intricate interplay between intratumoral bacteria and digestive system cancers, underscoring the pivotal role of microbiome research in transforming diagnostic, prognostic and therapeutic paradigms for digestive system cancers.
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Affiliation(s)
- Weiqin Lu
- General Surgery, Cancer Center, Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | | | | | - Yajun Liu
- Aksu First People's Hospital, Xinjiang, China
| | - Huihui Gao
- Cancer Center, Department of Hospital Infection Management and Preventive Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China.
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4
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Liu S, Wang S, Zhang N, Li P. The oral microbiome and oral and upper gastrointestinal diseases. J Oral Microbiol 2024; 16:2355823. [PMID: 38835339 PMCID: PMC11149586 DOI: 10.1080/20002297.2024.2355823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/10/2024] [Indexed: 06/06/2024] Open
Abstract
Background Microbiomes are essential components of the human body, and their populations are substantial. Under normal circumstances, microbiomes coexist harmoniously with the human body, but disturbances in this equilibrium can lead to various diseases. The oral microbiome is involved in the occurrence and development of many oral and gastrointestinal diseases. This review focuses on the relationship between oral microbiomes and oral and upper gastrointestinal diseases, and therapeutic strategies aiming to provide valuable insights for clinical prevention and treatment. Methods To identify relevant studies, we conducted searches in PubMed, Google Scholar, and Web of Science using keywords such as "oral microbiome," "oral flora, " "gastrointestinal disease, " without any date restrictions. Subsequently, the retrieved publications were subject to a narrative review. Results In this review, we found that oral microbiomes are closely related to oral and gastrointestinal diseases such as periodontitis, dental caries, reflux esophagitis, gastritis, and upper gastrointestinal tumors (mainly the malignant ones). Oral samples like saliva and buccal mucosa are not only easy to collect, but also display superior sample stability compared to gastrointestinal tissues. Consequently, analysis of the oral microbiome could potentially serve as an efficient preliminary screening method for high-risk groups before undergoing endoscopic examination. Besides, treatments based on the oral microbiomes could aid early diagnosis and treatment of these diseases. Conclusions Oral microbiomes are essential to oral and gastrointestinal diseases. Therapies centered on the oral microbiomes could facilitate the early detection and management of these conditions.
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Affiliation(s)
- Sifan Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University; State Key Laboratory for Digestive Health; National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Shidong Wang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Nan Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University; State Key Laboratory for Digestive Health; National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University; State Key Laboratory for Digestive Health; National Clinical Research Center for Digestive Diseases, Beijing, China
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5
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Sgamato C, Rocco A, Compare D, Priadko K, Romano M, Nardone G. Exploring the Link between Helicobacter pylori, Gastric Microbiota and Gastric Cancer. Antibiotics (Basel) 2024; 13:484. [PMID: 38927151 PMCID: PMC11201017 DOI: 10.3390/antibiotics13060484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Gastric cancer (GC) still represents one of the leading causes of cancer-related mortality and is a major public health issue worldwide. Understanding the etiopathogenetic mechanisms behind GC development holds immense potential to revolutionize patients' treatment and prognosis. Within the complex web of genetic predispositions and environmental factors, the connection between Helicobacter pylori (H. pylori) and gastric microbiota emerges as a focus of intense research investigation. According to the most recent hypotheses, H. pylori triggers inflammatory responses and molecular alterations in gastric mucosa, while non-Helicobacter microbiota modulates disease progression. In this review, we analyze the current state of the literature on the relationship between H. pylori and non-Helicobacter gastric microbiota in gastric carcinogenesis, highlighting the mechanisms by which microecological dysbiosis can contribute to the malignant transformation of the mucosa.
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Affiliation(s)
- Costantino Sgamato
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80131 Naples, Italy; (C.S.); (D.C.); (G.N.)
| | - Alba Rocco
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80131 Naples, Italy; (C.S.); (D.C.); (G.N.)
| | - Debora Compare
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80131 Naples, Italy; (C.S.); (D.C.); (G.N.)
| | - Kateryna Priadko
- Hepatogastroenterology Unit, Department of Precision Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (K.P.); (M.R.)
| | - Marco Romano
- Hepatogastroenterology Unit, Department of Precision Medicine, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (K.P.); (M.R.)
| | - Gerardo Nardone
- Gastroenterology Unit, Department of Clinical Medicine and Surgery, University Federico II of Naples, 80131 Naples, Italy; (C.S.); (D.C.); (G.N.)
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6
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Yang M. Interaction between intestinal flora and gastric cancer in tumor microenvironment. Front Oncol 2024; 14:1402483. [PMID: 38835386 PMCID: PMC11148328 DOI: 10.3389/fonc.2024.1402483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 05/01/2024] [Indexed: 06/06/2024] Open
Abstract
Gastric Cancer (GC) is a prevalent malignancy globally and is the third leading cause of cancer-related deaths. Recent researches focused on the correlation between intestinal flora and GC. Studies indicate that bacteria can influence the development of gastrointestinal tumors by releasing bacterial extracellular vesicles (BEVs). The Tumor microenvironment (TME) plays an important role in tumor survival, with the interaction between intestinal flora, BEVs, and TME directly impacting tumor progression. Moreover, recent studies have demonstrated that intestinal microflora and BEVs can modify TME to enhance the effectiveness of antitumor drugs. This review article provides an overview and comparison of the biological targets through which the intestinal microbiome regulates TME, laying the groundwork for potential applications in tumor diagnosis, treatment, and prognosis.
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Affiliation(s)
- Mingjin Yang
- Department of Gastrointestinal Surgery, The Affiliated People's Hospital of Ningbo University, Ningbo, China
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7
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Santacroce L, Topi S, Bottalico L, Charitos IA, Jirillo E. Current Knowledge about Gastric Microbiota with Special Emphasis on Helicobacter pylori-Related Gastric Conditions. Curr Issues Mol Biol 2024; 46:4991-5009. [PMID: 38785567 PMCID: PMC11119845 DOI: 10.3390/cimb46050299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/06/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
The gastric milieu, because of its very low acidic pH, is very harsh for bacterial growth. The discovery of Helicobacter pylori (H.p.) has opened a new avenue for studies on the gastric microbiota, thus indicating that the stomach is not a sterile environment. Nowadays, new technologies of bacterial identification have demonstrated the existence of other microorganisms in the gastric habitat, which play an important role in health and disease. This bacterium possesses an arsenal of compounds which enable its survival but, at the same time, damage the gastric mucosa. Toxins, such as cytotoxin-associated gene A, vacuolar cytotoxin A, lipopolysaccharides, and adhesins, determine an inflammatory status of the gastric mucosa which may become chronic, ultimately leading to a gastric carcinoma. In the initial stage, H.p. persistence alters the gastric microbiota with a condition of dysbiosis, predisposing to inflammation. Probiotics and prebiotics exhibit beneficial effects on H.p. infection, and, among them, anti-inflammatory, antioxidant, and antibacterial activities are the major ones. Moreover, the association of probiotics with prebiotics (synbiotics) to conventional anti-H.p. therapy contributes to a more efficacious eradication of the bacterium. Also, polyphenols, largely present in the vegetal kingdom, have been demonstrated to alleviate H.p.-dependent pathologies, even including the inhibition of tumorigenesis. The gastric microbiota composition in health and disease is described. Then, cellular and molecular mechanisms of H.p.-mediated damage are clarified. Finally, the use of probiotics, prebiotics, and polyphenols in experimental models and in patients infected with H.p. is discussed.
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Affiliation(s)
- Luigi Santacroce
- Section of Microbiology and Virology, Interdisciplinary Department of Medicine, School of Medicine, University of Bari ‘Aldo Moro’, 70124 Bari, Italy;
| | - Skender Topi
- Department of Clinical Disciplines, University ‘Alexander Xhuvani’ of Elbasan, 3001 Elbasan, Albania; (S.T.)
| | - Lucrezia Bottalico
- Department of Clinical Disciplines, University ‘Alexander Xhuvani’ of Elbasan, 3001 Elbasan, Albania; (S.T.)
| | - Ioannis Alexandros Charitos
- Istituti Clinici Scientifici Maugeri IRCCS, Pneumology and Respiratory Rehabilitation Unit, Institute of Bari, 70124 Bari, Italy;
| | - Emilio Jirillo
- Section of Microbiology and Virology, Interdisciplinary Department of Medicine, School of Medicine, University of Bari ‘Aldo Moro’, 70124 Bari, Italy;
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8
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Zhang R, Qin X, Liu Y. Exploration of the intestinal flora to reveal the important contribution of Radix Astragali to Huangqi Jianzhong Tang in treating chronic atrophic gastritis rats. J Pharm Biomed Anal 2024; 242:116067. [PMID: 38417324 DOI: 10.1016/j.jpba.2024.116067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
Radix Astragali (Huangqi in Chinese, HQ) is a commonly used Chinese herbal medicine for thousands of years. In this study, A classic prescription Huangqi Jianzhong tang (HQJZ) was selected to evaluate the important effect of HQ on rats with chronic atrophic gastritis (CAG) from the perspective of intestinal flora in cecal contents samples. Traditional pharmacological indicators, including weight change, pathological examination and biochemical indicators showed that HQ exerted favorable contribution to HQJZ against CAG, where the efficiencies of HQ and HQJZ were better than HY (HQJZ prepared without HQ). An accurate strategy was adopted to screen out the differential metabolites in the metabolomis analysis of intestinal flora in cecal contents samples based on the optimal screening factors, including VIP (importance of variables in projection), FC (fold change), AUROC (area under the receiver operating characteristic curve) and -ln(p-value), which were evaluated based on their interpreting, grouping, and predicting abilities of the performed orthogonal partial least-squares-discriminate analysis (OPLS-DA) models. Ten altered differential metabolites were obtained and associated with the intestinal flora, which HQ exerted the important metabolic contributions to HQJZ. The efficacy on the diversity of intestinal flora and their correlations with the altered metabolites further showed the important role of HQ in HQJZ composition. This work provided valuable approach for looking for potential biomarkers associated with metabolomics research with more accuracy, and provided new insights into the mechanisms to explain the efficacy of HQ contributing to HQJZ formula.
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Affiliation(s)
- Ruonan Zhang
- Modern Research Center for Traditional Chinese Medicine, the Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China; Key Laboratory of Effective Substances Research and Utilization in TCM of Shanxi Province, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China
| | - Xuemei Qin
- Modern Research Center for Traditional Chinese Medicine, the Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China; Key Laboratory of Effective Substances Research and Utilization in TCM of Shanxi Province, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China.
| | - Yuetao Liu
- Modern Research Center for Traditional Chinese Medicine, the Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China; Key Laboratory of Effective Substances Research and Utilization in TCM of Shanxi Province, No. 92, Wucheng Road, Taiyuan, Shanxi 030006, PR China.
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9
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Zhang R, Wu Y, Ju W, Wang S, Liu Y, Zhu H. Gut microbiome alterations during gastric cancer: evidence assessment of case-control studies. Front Microbiol 2024; 15:1406526. [PMID: 38812681 PMCID: PMC11133546 DOI: 10.3389/fmicb.2024.1406526] [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: 03/25/2024] [Accepted: 04/30/2024] [Indexed: 05/31/2024] Open
Abstract
Objectives The study aims to systematically identify the alterations in gut microbiota that observed in gastric cancer through comprehensive assessment of case-control studies. Methods The systematic literature search of PubMed, Embase, Cochrane Library, and Web of Science was conducted to identify case-control studies that compared the microbiomes of individuals with and without gastric cancer. Quality of included studies was evaluated with the Newcastle-Ottawa Quality Assessment Scale (NOS). Meta-analyses utilized a random-effects model, and subgroup and sensitivity analyses were performed to assess study heterogeneity. All data analyses were performed using the "metan" package in Stata 17.0, and the results were described using log odds ratios (log ORs) with 95% confidence intervals (CIs). Results A total of 33 studies involving 4,829 participants were eligible for analysis with 29 studies provided changes in α diversity and 18 studies reported β diversity. Meta-analysis showed that only the Shannon index demonstrated statistical significance for α-diversity [-5.078 (-9.470, -0.686)]. No significant differences were observed at the phylum level, while 11 bacteria at genus-level were identified significant changed, e.g., increasing in Lactobacillus [5.474, (0.949, 9.999)] and Streptococcus [5.095, (0.293, 9.897)] and decreasing in Porphyromonas and Rothia with the same [-8.602, (-11.396, -5.808)]. Sensitivity analysis indicated that the changes of 9 bacterial genus were robust. Subgroup analyses on countries revealed an increasing abundance of Helicobacter and Streptococcus in Koreans with gastric cancer, whereas those with gastric cancer from Portugal had a reduced Neisseria. Regarding the sample sources, the study observed an increase in Lactobacillus and Bacteroides in the gastric mucosa of people with gastric cancer, alongside Helicobacter and Streptococcus. However, the relative abundance of Bacteroides decreased compared to the non-gastric cancer group, which was indicated in fecal samples. Conclusion This study identified robust changes of 9 bacterial genus in people with gastric cancer, which were country-/sample source-specific. Large-scale studies are needed to explore the mechanisms underlying these changes. Systematic Review Unique Identifier: CRD42023437426 https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023437426.
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Affiliation(s)
- Ruimin Zhang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, China
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Yingxin Wu
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Wantao Ju
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Senlin Wang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, China
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Yanjun Liu
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, China
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Hongmei Zhu
- Section for Gastrointestinal Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Aliated Hospital of Southwest Jiaotong University & The Second Aliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Medical Research Center, The Third People’s Hospital of Chengdu, The Aliated Hospital of Southwest Jiaotong University, Chengdu, China
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10
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Ding W, Chen L, Xia J, Dong G, Song B, Pei B, Li X. Causal relationships between gut microbrome and digestive system diseases: A two-sample Mendelian randomization study. Medicine (Baltimore) 2024; 103:e37735. [PMID: 38669367 PMCID: PMC11049755 DOI: 10.1097/md.0000000000037735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/06/2024] [Indexed: 04/28/2024] Open
Abstract
Growing evidences of recent studies have shown that gut microbrome are causally related to digestive system diseases (DSDs). However, causal relationships between the gut microbiota and the risk of DSDs still remain unclear. We utilized identified gut microbiota based on class, family, genus, order and phylum information and digestive system diseases genome-wide association study (GWAS) dataset for two-sample Mendelian randomization (MR) analysis. The inverse variance weighted (IVW) method was used to evaluate causal relationships between gut microbiota and 7 DSDs, including chronic gastritis, colorectal cancer, Crohn's disease, gastric cancer, gastric ulcer, irritable bowel syndrome and esophageal cancer. Finally, we verified the robustness of MR results based on heterogeneity and pleiotropy analysis. We discovered 15 causal associations with genetic liabilities in the gut microbiota and DSDs, such as genus Victivallis, genus RuminococcaceaeUCG005, genus Ruminococcusgauvreauiigroup, genus Oxalobacter and so on. Our MR analysis revealed that the gut microbiota is causally associated with DSDs. Further researches of the gut microbiota and the pathogenesis of DSDs are still significant and provide new methods for the prevention and treatment of DSDs.
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Affiliation(s)
- Wenjing Ding
- The Second Clinical Medical School, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Liangliang Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Jianguo Xia
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Gang Dong
- The Second Clinical Medical School, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Biao Song
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Bei Pei
- The Second Clinical Medical School, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Xuejun Li
- Department of Gastroenterology, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China
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11
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Jeong S, Liao YT, Tsai MH, Wang YK, Wu IC, Liu CJ, Wu MS, Chan TS, Chen MY, Hu PJ, Kao WY, Liu HC, Tsai MJ, Liu CY, Chang CC, Wu DC, Hsu YH. Microbiome signatures associated with clinical stages of gastric Cancer: whole metagenome shotgun sequencing study. BMC Microbiol 2024; 24:139. [PMID: 38658841 PMCID: PMC11040827 DOI: 10.1186/s12866-024-03219-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/08/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Gastric cancer is one of the global health concerns. A series of studies on the stomach have confirmed the role of the microbiome in shaping gastrointestinal diseases. Delineation of microbiome signatures to distinguish chronic gastritis from gastric cancer will provide a non-invasive preventative and treatment strategy. In this study, we performed whole metagenome shotgun sequencing of fecal samples to enhance the detection of rare bacterial species and increase genome sequence coverage. Additionally, we employed multiple bioinformatics approaches to investigate the potential targets of the microbiome as an indicator of differentiating gastric cancer from chronic gastritis. RESULTS A total of 65 patients were enrolled, comprising 33 individuals with chronic gastritis and 32 with gastric cancer. Within each group, the chronic gastritis group was sub-grouped into intestinal metaplasia (n = 15) and non-intestinal metaplasia (n = 18); the gastric cancer group, early stage (stages 1 and 2, n = 13) and late stage (stages 3 and 4, n = 19) cancer. No significant differences in alpha and beta diversities were detected among the patient groups. However, in a two-group univariate comparison, higher Fusobacteria abundance was identified in phylum; Fusobacteria presented higher abundance in gastric cancer (LDA scored 4.27, q = 0.041 in LEfSe). Age and sex-adjusted MaAsLin and Random Forest variable of importance (VIMP) analysis in species provided meaningful features; Bacteria_caccae was the most contributing species toward gastric cancer and late-stage cancer (beta:2.43, se:0.891, p:0.008, VIMP score:2.543). In contrast, Bifidobacterium_longum significantly contributed to chronic gastritis (beta:-1.8, se:0.699, p:0.009, VIMP score:1.988). Age, sex, and BMI-adjusted MasAsLin on metabolic pathway analysis showed that GLCMANNANAUT-PWY degradation was higher in gastric cancer and one of the contributing species was Fusobacterium_varium. CONCLUSION Microbiomes belonging to the pathogenic phylum Fusobacteria and species Bacteroides_caccae and Streptococcus_anginosus can be significant targets for monitoring the progression of gastric cancer. Whereas Bifidobacterium_longum and Lachnospiraceae_bacterium_5_1_63FAA might be protection biomarkers against gastric cancer.
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Affiliation(s)
- Sohyun Jeong
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, 1200 Centre Street, Boston, MA, 02131, USA
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Yi-Tyng Liao
- Development Center for Biotechnology, Taipei, Taiwan
| | - Min-Hsuan Tsai
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 TzYou 1st Rd, Kaohsiung City, 80756, Taiwan
| | - Yao-Kuang Wang
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 TzYou 1st Rd, Kaohsiung City, 80756, Taiwan
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Chen Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 TzYou 1st Rd, Kaohsiung City, 80756, Taiwan
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Jung Liu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 TzYou 1st Rd, Kaohsiung City, 80756, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Shun Wu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tze-Sian Chan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Ming-Yao Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- Division of Gastroenterology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Ping-Jen Hu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- Division of Gastroenterology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wei-Yu Kao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, 110, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan
| | | | - Ming-Ju Tsai
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, 1200 Centre Street, Boston, MA, 02131, USA
| | | | - Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, 110, Taiwan.
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan.
- TMU Research Center for Digestive Medicine, Taipei Medical University, No.252, Wuxing St., Xinyi Dist, Taipei, 110, Taiwan.
| | - Deng-Chyang Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 TzYou 1st Rd, Kaohsiung City, 80756, Taiwan.
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Yi-Hsiang Hsu
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, 1200 Centre Street, Boston, MA, 02131, USA.
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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Fu Y, Li J, Cai W, Huang Y, Liu X, Ma Z, Tang Z, Bian X, Zheng J, Jiang J, Li C. The emerging tumor microbe microenvironment: From delineation to multidisciplinary approach-based interventions. Acta Pharm Sin B 2024; 14:1560-1591. [PMID: 38572104 PMCID: PMC10985043 DOI: 10.1016/j.apsb.2023.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/20/2023] [Accepted: 11/03/2023] [Indexed: 04/05/2024] Open
Abstract
Intratumoral microbiota has become research hotspots, and emerges as a non-negligent new component of tumor microenvironments (TME), due to its powerful influence on tumor initiation, metastasis, immunosurveillance and prognosis despite in low-biomass. The accumulations of microbes, and their related components and metabolites within tumor tissues, endow TME with additional pluralistic features which are distinct from the conventional one. Therefore, it's definitely necessary to comprehensively delineate the sophisticated landscapes of tumor microbe microenvironment, as well as their functions and related underlying mechanisms. Herein, in this review, we focused on the fields of tumor microbe microenvironment, including the heterogeneity of intratumor microbiota in different types of tumors, the controversial roles of intratumoral microbiota, the basic features of tumor microbe microenvironment (i.e., pathogen-associated molecular patterns (PAMPs), typical microbial metabolites, autophagy, inflammation, multi-faceted immunomodulation and chemoresistance), as well as the multidisciplinary approach-based intervention of tumor microbiome for cancer therapy by applying wild-type or engineered live microbes, microbiota metabolites, antibiotics, synthetic biology and rationally designed biomaterials. We hope our work will provide valuable insight to deeply understand the interplay of cancer-immune-microbial, and facilitate the development of microbes-based tumor-specific treatments.
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Affiliation(s)
- Yu Fu
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Jia Li
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Wenyun Cai
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yulan Huang
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xinlong Liu
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Zhongyi Ma
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Zhongjie Tang
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xufei Bian
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Ji Zheng
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jiayun Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Chong Li
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
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Liu T, Guo Y, Liao Y, Liu J. Mechanism-guided fine-tuned microbiome potentiates anti-tumor immunity in HCC. Front Immunol 2023; 14:1333864. [PMID: 38169837 PMCID: PMC10758498 DOI: 10.3389/fimmu.2023.1333864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Microbiome, including bacteria, fungi, and viruses, plays a crucial role in shaping distal and proximal anti-tumor immunity. Mounting evidence showed that commensal microbiome critically modulates immunophenotyping of hepatocellular carcinoma (HCC), a leading cause of cancer-related death. However, their role in anti-tumor surveillance of HCC is still poorly understood. Herein, we spotlighted growing interests in how the microbiome influences the progression and immunotherapeutic responses of HCC via changing local tumor microenvironment (TME) upon translocating to the sites of HCC through different "cell-type niches". Moreover, we summarized not only the associations but also the deep insight into the mechanisms of how the extrinsic microbiomes interplay with hosts to shape immune surveillance and regulate TME and immunotherapeutic responses. Collectively, we provided a rationale for a mechanism-guided fine-tuned microbiome to be neoadjuvant immunotherapy in the near future.
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Affiliation(s)
- Tao Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ya Guo
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yanxia Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jinping Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
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14
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Li XJ, Gao MG, Chen XX, Rong YM, Huang LL, Huang JS. Genetically Predicted Causal Effects of Gut Microbiota and Gut Metabolites on Digestive Tract Cancer: A Two-Sample Mendelian Randomization Analysis. World J Oncol 2023; 14:558-569. [PMID: 38022400 PMCID: PMC10681779 DOI: 10.14740/wjon1737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Background Evidence from numerous observational studies and clinical trials has linked gut microbiota and metabolites to digestive tract cancer. However, the causal effect between these factors remains uncertain. Methods Data for this study were obtained from the MiBioGen, TwinsUK Registry, and FinnGen (version R8). Two-sample Mendelian randomization analysis with inverse variance weighting method was primarily used, and the results were validated by heterogeneity analysis, pleiotropy test, and sensitivity analysis. Results At P < 5 × 10-8, our analysis identified four gut microbiotas as risk factors for digestive tract cancer and six as risk factors for colorectal cancer. Conversely, one gut microbiota exhibited protection against bile duct cancer, and two showed protective effects against stomach cancer. At P < 1 × 10-5, our investigation revealed five, six, three, eight, eight, and eight gut microbiotas as risk factors for esophageal, stomach, bile duct, liver, pancreatic, and colorectal cancers, respectively. In contrast, four, two, eight, two, two, and five gut microbiotas exhibited protective effects against these cancers. Additionally, GABA, a metabolite of gut microbiota, displayed a significant protective effect against colorectal cancer. Conclusion In conclusion, specific gut microbiota and metabolites play roles as risk factors or protective factors for digestive tract cancer, and a causal relationship between them has been established, offering novel insights into gut microbiota-mediated cancer development.
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Affiliation(s)
- Xu Jia Li
- VIP Department, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- These authors contributed equally to this work
| | - Meng Ge Gao
- Department of Clinical Nutrition, Huadu District People’s Hospital, Southern Medical University, Guangzhou 510800, China
- These authors contributed equally to this work
| | - Xu Xian Chen
- VIP Department, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yu Ming Rong
- VIP Department, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Ling Li Huang
- VIP Department, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jin Sheng Huang
- VIP Department, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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15
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Gao X, Wang Z, Liu B, Cheng Y. Causal association of gut microbiota and esophageal cancer: a Mendelian randomization study. Front Microbiol 2023; 14:1286598. [PMID: 38107856 PMCID: PMC10722290 DOI: 10.3389/fmicb.2023.1286598] [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: 08/31/2023] [Accepted: 11/07/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction Despite the growing body of evidence, the link between the gut microbiota and different types of tumors, such as colorectal, gastric, and liver cancer, is becoming more apparent. The gut microbiota can be used as a reference for evaluating various diseases, including cancer, and can also act as risk factors or preventive factors. However, the specific connection between the gut microbiota and the advancement of esophageal cancer has yet to be investigated. Therefore, the aim of this research is to clarify the possible causal influence of intestinal microorganisms on the vulnerability to esophageal cancer through the utilization of Mendelian randomization (MR) studies. Methods In this study, we employed a two-sample Mendelian randomization approach to evaluate the unbiased causal association between 150 different gut microbiota types and the occurrence of esophageal cancer. Following the selection from the IEU GWAS database and SNP filtration, we utilized various MR statistical techniques on the suitable instrumental variables. These included IVW methods, employing inverse variance weighting. Additionally, we performed a range of sensitivity analyses to confirm the heterogeneity and pleiotropy of the instrumental variables, thus ensuring the reliability of the outcomes. Results The increased likelihood of developing esophageal cancer is linked to the genetically predicted high levels of Gordonibacter, Oxalobacter, Coprobacter, Veillonella, Ruminiclostridium 5, Ruminococcus 1, and Senegalimasilia genera. Conversely, a decreased risk of esophageal cancer is associated with the high abundance of Turicibacter, Eubacterium oxidoreducens group, Romboutsia, and Prevotella 9 genera. No heterogeneity and pleiotropy were detected in the sensitivity analysis. Discussion We found that 11 types of gut microbial communities are associated with esophageal cancer, thereby confirming that the gut microbiota plays a significant role in the path.
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Affiliation(s)
- Xiangyu Gao
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, China
| | - Zhiguo Wang
- The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bowen Liu
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, China
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16
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Li Q. Bacterial infection and microbiota in carcinogenesis and tumor development. Front Cell Infect Microbiol 2023; 13:1294082. [PMID: 38035341 PMCID: PMC10684967 DOI: 10.3389/fcimb.2023.1294082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
Microbiota colonize exposed body tissues (e.g., gastrointestinal tract, skin, lungs, female genital tract, and urogenital tracts) and unexposed sites (e.g., breast). Persistent bacterial infection in the host lead to the development of multiple disease. They are implicated in the pathogenesis of various complex diseases, including diabetes, atherosclerosis, autoimmune diseases, Alzheimer's disease, and malignant diseases. Amounting studies have demonstrated the role of bacterial infection in carcinogenesis. The study of microbiota in tumorigenesis is primarily focused on lung cancer, colorectal cancer (CRC), breast cancer, gastric cancer, and gynecologic tumors, and so on. Infection of Helicobacter pylori in gastric cancer carcinogenesis is recognized as class I carcinogen by the World Health Organization (WHO) decades ago. The role of Fusobacterium nucleatum in the development of colorectal cancer is extensively investigated. Variable bacteria have been cultured from the tumor tissues. The identification of microbiota in multiple tumor tissues reveal that bacterial infection and microbiota are associated with tumor development. The microbiota affects multiple aspects of carcinogenesis and tumor development, including favoring epithelial cells proliferation, establishing inflammatory microenvironment, promoting metastasis, and causing resistance to therapy. On the other hand, microbiota can shape a tumor surveillance environment by enhancing cell activity, and sensitize the tumor cells to immune therapy. In the present review, the roles of microbiota in multiple malignancies are summarized, and unraveling the mechanisms of host-microbiota interactions can contribute to a better understanding of the interaction between microbiota and host cells, also the development of potential anti-tumor therapeutic strategies.
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Affiliation(s)
- Qiao Li
- Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, Hubei, China
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17
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Gao X, Yin P, Ren Y, Yu L, Tian F, Zhao J, Chen W, Xue Y, Zhai Q. Predicting Personalized Diets Based on Microbial Characteristics between Patients with Superficial Gastritis and Atrophic Gastritis. Nutrients 2023; 15:4738. [PMID: 38004131 PMCID: PMC10675729 DOI: 10.3390/nu15224738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/04/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND gastritis is a common stomach disease with a high global incidence and can potentially develop into gastric cancer. The treatment of gastritis focuses on medication or diets based on national guidelines. However, the specific diet that can alleviate gastritis remains largely unknown. METHODS we propose a microbiota-directed dietary strategy that investigates potential food factors using microbial exogenous metabolites. Given the current lack of understanding of the repeatable characteristics of gastric microbiota, we conducted a meta-analysis to identify the features of gastric bacteria. Local samples were collected as validation cohorts. Furthermore, RevEcoR was employed to identify bacteria's exogenous metabolites, and FooDB was used to retrieve foods that can target specific bacteria. RESULTS Bacteroides, Weissella, Actinomyces, Atopobium, Oribacterium, Peptostreptococcus, and Rothia were biomarkers between superficial gastritis (SG) and atrophic gastritis (AG) (AG_N) without H. pylori infection, whereas Bacillus, Actinomyces, Cutibacterium, Helicobacter, Novosphingobium, Pseudomonas, and Streptococcus were signatures between SG and AG (AG_P) with H. pylori infection. According to the exogenous metabolites, adenosyloobalamin, soybean, common wheat, dates, and barley were regarded as potential candidates for AG_N treatment, while gallate was regarded as a candidate for AG_P treatment. CONCLUSIONS this study firstly profiled the gastric microbiota of AG and SG with or without H. pylori and provided a recommended diet for global AG according to exogenous metabolites.
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Affiliation(s)
- Xiaoxiang Gao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Pingping Yin
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yilin Ren
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Yuzheng Xue
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (X.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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Feng J, Yang K, Liu X, Song M, Zhan P, Zhang M, Chen J, Liu J. Machine learning: a powerful tool for identifying key microbial agents associated with specific cancer types. PeerJ 2023; 11:e16304. [PMID: 37901464 PMCID: PMC10601900 DOI: 10.7717/peerj.16304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 09/26/2023] [Indexed: 10/31/2023] Open
Abstract
Machine learning (ML) includes a broad class of computer programs that improve with experience and shows unique strengths in performing tasks such as clustering, classification and regression. Over the past decade, microbial communities have been implicated in influencing the onset, progression, metastasis, and therapeutic response of multiple cancers. Host-microbe interaction may be a physiological pathway contributing to cancer development. With the accumulation of a large number of high-throughput data, ML has been successfully applied to the study of human cancer microbiomics in an attempt to reveal the complex mechanism behind cancer. In this review, we begin with a brief overview of the data sources included in cancer microbiomics studies. Then, the characteristics of the ML algorithm are briefly introduced. Secondly, the application progress of ML in cancer microbiomics is also reviewed. Finally, we highlight the challenges and future prospects facing ML in cancer microbiomics. On this basis, we conclude that the development of cancer microbiomics can not be achieved without ML, and that ML can be used to develop tumor-targeting microbial therapies, ultimately contributing to personalized and precision medicine.
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Affiliation(s)
- Jia Feng
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Kailan Yang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Xuexue Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Min Song
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Ping Zhan
- Department of Obstetrics, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Mi Zhang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Jinsong Chen
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Jinbo Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
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Shah T, Wang Y, Wang Y, Li Q, Zhou J, Hou Y, Wang B, Xia X. A Comparative Analysis of the Stomach, Gut, and Lung Microbiomes in Rattus norvegicus. Microorganisms 2023; 11:2359. [PMID: 37764203 PMCID: PMC10534326 DOI: 10.3390/microorganisms11092359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Urban rats serve as reservoirs for several zoonotic pathogens that seriously endanger public health, destroy stored food, and damage infrastructure due to their close interaction with humans and domestic animals. Here, we characterize the core microbiomes of R. norvegicus's stomach, gut, and lung using 16S rRNA next-generation Illumina HiSeq sequencing. The USEARCH software (v11) assigned the dataset to operational taxonomic units (OTUs). The alpha diversity index was calculated using QIIME1, while the beta diversity index was determined using the Bray-Curtis and Euclidean distances between groups. Principal component analyses visualized variation across samples based on the OTU information using the R package. Linear discriminant analysis, effect sizes (LEfSe), and phylogenetic investigation were used to identify differentially abundant taxa among groups. We reported an abundance of microbiota in the stomach, and they shared some of them with the gut and lung microbiota. A close look at the microbial family level reveals abundant Lactobacillaceae and Bifidobacteriaceae in the stomach, whereas Lactobacillaceae and Erysipelotrichaceae were more abundant in the gut; in contrast, Alcaligenaceae were abundant in the lungs. At the species level, some beneficial bacteria, particularly Lactobacillus reuteri and Lactobacillus johnsonii, and some potential pathogens, such as Bordetella hinzii, Streptococcus parauberis, Porphyromonas pogonae, Clostridium perfringens, etc., were identified in stomach, gut, and lung samples. Moreover, the alpha and beta diversity indexes revealed significant differences between the groups. Further analysis revealed abundant differential taxonomic biomarkers, i.e., increased Prevotellaceae and Clostridia in the lungs, whereas Campylobacteria and Lachnospirales were richest in the stomachs. In conclusion, we identified many beneficial, opportunistic, and highly pathogenic bacteria, confirming the importance of urban rats for public health. This study recommends a routine survey program to monitor rodent distribution and the pathogens they carry and transmit to humans and other domestic mammals.
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Affiliation(s)
- Taif Shah
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Yuhan Wang
- Department of Biodiversity Conservation, Southwest Forestry University, Kunming 650500, China
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Yixuan Wang
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Qian Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Jiuxuan Zhou
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Yutong Hou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Binghui Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Xueshan Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
- School of Public Health, Kunming Medical University, Kunming 650500, China
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20
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Sharma P, Phatak SM, Warikoo P, Mathur A, Mahant S, Das K, Das R. Crosstalk between Helicobacter pylori and gastrointestinal microbiota in various gastroduodenal diseases-A systematic review. 3 Biotech 2023; 13:303. [PMID: 37588796 PMCID: PMC10425313 DOI: 10.1007/s13205-023-03734-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/21/2023] [Indexed: 08/18/2023] Open
Abstract
Gastroduodenal diseases have prevailed for a long time and more so due to dominance of gut bacteria Helicobacter pylori in most of the cases. But habitation by other gut microbiota in gastroduodenal diseases and the relationship between Helicobacter pylori and gastrointestinal microbiota in different gastroduodenal diseases is somewhat being unravelled in the current times. For this systematic review, we did a literature search of various gastroduodenal diseases and the effect on gut microbiota pertaining to it. A search of the online bibliographic databases PUBMED and PUBMED CENTRAL was carried out to identify articles published between 1977 and May 2022. The analysis of these selected studies highlighted the inhabitation of other gut microbiota such as Fusobacteria, Bacteroidetes, Streptococcaceae, Prevotellaceae, Fusobacteriaceae, and many others. Interplay between these microbiota and H. pylori have also been noted which suggested that gastroduodenal diseases and gut microbiota are intertwined by a symbiotic association regardless of the H. pylori status. The relationship between the gut microbiota and many gastroduodenal diseases, such as gastritis, gastric cancer, lymphomas, and ulcers, demonstrates the dysbiosis of the gut microbiota in both the presence and absence of H. pylori. The evolving ways for eliminating H. pylori are provided along with inhibiting qualities of other species on H. pylori. Most significant member of our gut system is Helicobacter pylori which has been associated with numerous diseases like gastric cancer, gastritis, duodenal ulcer.
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Affiliation(s)
- Prateek Sharma
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
| | - Shravani M. Phatak
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
| | - Prisha Warikoo
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
| | - Akshita Mathur
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
| | - Shweta Mahant
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
| | - Kunal Das
- Department of Gastroenterology, Yashoda Super Speciality Hospital, Kaushambi, Ghaziabad, Uttar Pradesh India
| | - Rajashree Das
- Center for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, U.P. India
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21
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Yue K, Sheng D, Xue X, Zhao L, Zhao G, Jin C, Zhang L. Bidirectional Mediation Effects between Intratumoral Microbiome and Host DNA Methylation Changes Contribute to Stomach Adenocarcinoma. Microbiol Spectr 2023; 11:e0090423. [PMID: 37260411 PMCID: PMC10434028 DOI: 10.1128/spectrum.00904-23] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/06/2023] [Indexed: 06/02/2023] Open
Abstract
The induction of aberrant DNA methylation is the major pathway by which Helicobacter pylori infection induces stomach adenocarcinoma (STAD). The involvement of the non-H. pylori gastric microbiota in this mechanism remains to be examined. RNA sequencing data, clinical information, and DNA methylation data were obtained from The Cancer Genome Atlas (TCGA) STAD project. The Kraken 2 pipeline was employed to explore the microbiome profiles. The microbiome was associated with occurrence, distal metastasis, and prognosis, and differential methylation changes related to distal metastasis and prognosis were analyzed. Bi-directional mediation effects of the intratumoral microbiome and host DNA methylation changes on the metastasis and prognosis of STAD were identified by mediation analysis. The expression of the ZNF215 gene was verified by real-time quantitative PCR (RT-qPCR). A cell counting kit 8 (CCK8) cell proliferation experiment and a cell clone formation experiment were used to evaluate the proliferation and invasion abilities of gastric cells. Our analysis revealed that H. pylori and other cancer-related microorganisms were related to the occurrence, progression, or prognosis of STAD. The related methylated genes were particularly enriched in related cancer pathways. Kytococcus sedentarius and Actinomyces oris, which interacted strongly with methylation changes in immune genes, were associated with prognosis. Cell experiments verified that Staphylococcus saccharolyticus could promote the proliferation and cloning of gastric cells by regulating the gene expression level of the ZNF215 gene. Our study suggested that the bi-directional mediation effect between intratumoral microorganisms and host epigenetics was key to the distal metastasis of cancer cells and survival deterioration in the tumor microenvironment of stomach tissues of patients with STAD. IMPORTANCE The burgeoning field of oncobiome research declared that members of the intratumoral microbiome besides Helicobacter pylori existed in tumor tissues and participated in the occurrence and development of gastric cancer, and the methylation of host DNA may be a potential target of microbes and their metabolites. Current research focuses mostly on species composition, but the functional genes of the members of the microbiota are also key to their interaction with the host. Therefore, we focused on characterizing the species composition and functional gene composition of microbes in gastric cancer, and we suggest that microbes may further participate in the occurrence and development of cancer by influencing abnormal epigenetic changes in the host. Some key bioinformatics analysis results were verified by in vitro experiments. Thus, we consider that the tumor microbiota-host epigenetic axis of gastric cancer microorganisms and the host explains the mechanism of the microbiota participating in cancer occurrence and development, and we make some verifiable experimental predictions.
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Affiliation(s)
- Kaile Yue
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dashuang Sheng
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinxin Xue
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lanlan Zhao
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guoping Zhao
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
- CAS Key Laboratory of Computational Biology, Bio-Med Big Data Center, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chuandi Jin
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lei Zhang
- Microbiome-X, National Institute of Health Data Science of China, Shandong University, Jinan, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
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22
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Huang H, Zhong W, Wang X, Yang Y, Wu T, Chen R, Liu Y, He F, Li J. The role of gastric microecological dysbiosis in gastric carcinogenesis. Front Microbiol 2023; 14:1218395. [PMID: 37583514 PMCID: PMC10423824 DOI: 10.3389/fmicb.2023.1218395] [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: 05/07/2023] [Accepted: 07/10/2023] [Indexed: 08/17/2023] Open
Abstract
Gastric cancer (GC) is the leading cause of cancer-related death worldwide, and reducing its mortality has become an urgent public health issue. Gastric microecological dysbiosis (including bacteria, fungi, viruses, acid suppressants, antibiotics, and surgery) can lead to gastric immune dysfunction or result in a decrease in dominant bacteria and an increase in the number and virulence of pathogenic microorganisms, which in turn promotes development of GC. This review analyzes the relationship between gastric microecological dysbiosis and GC, elucidates dynamic alterations of the microbiota in Correa's cascade, and identifies certain specific microorganisms as potential biomarkers of GC to aid in early screening and diagnosis. In addition, this paper presents the potential of gastric microbiota transplantation as a therapeutic target for gastric cancer, providing a new direction for future research in this field.
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Affiliation(s)
- Hui Huang
- Chengdu Medical College, Chengdu, Sichuan, China
| | - Wei Zhong
- Chengdu Medical College, Chengdu, Sichuan, China
| | | | - Ying Yang
- Chengdu Medical College, Chengdu, Sichuan, China
| | - Tianmu Wu
- Chengdu Medical College, Chengdu, Sichuan, China
| | - Runyang Chen
- Chengdu Medical College, Chengdu, Sichuan, China
| | - Yanling Liu
- Chengdu Medical College, Chengdu, Sichuan, China
| | - Feng He
- Chengdu Medical College, Chengdu, Sichuan, China
- Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Jun Li
- Chengdu Medical College, Chengdu, Sichuan, China
- Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
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23
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Yang HJ. [Gastric Cancer and Gastric Microbiome]. THE KOREAN JOURNAL OF GASTROENTEROLOGY = TAEHAN SOHWAGI HAKHOE CHI 2023; 81:235-242. [PMID: 37350518 DOI: 10.4166/kjg.2023.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 06/24/2023]
Abstract
Gastric cancer remains a significant disease burden in Korea, with Helicobacter pylori infections being the most crucial risk factor. With the advent of next-generation sequencing, the role of gastric microbiota in gastric cancer has attracted increasing attention. Studies have shown that the gastric microbiota of patients with gastric cancer differs in composition from that of the controls, with reduced microbial diversity. Lactic acid bacteria and oral microflora are often enriched in gastric cancer and are believed to induce chronic inflammation or promote the production of nitroso compounds. This review focuses on recent studies comparing the gastric microbiome in gastric cancer patients and controls.
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Affiliation(s)
- Hyo-Joon Yang
- Division of Gastroenterology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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24
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Miri AH, Kamankesh M, Rad-Malekshahi M, Yadegar A, Banar M, Hamblin MR, Haririan I, Aghdaei HA, Zali MR. Factors associated with treatment failure, and possible applications of probiotic bacteria in the arsenal against Helicobacter pylori. Expert Rev Anti Infect Ther 2023; 21:617-639. [PMID: 37171213 DOI: 10.1080/14787210.2023.2203382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
INTRODUCTION Helicobacter pylori is a widespread helical Gram-negative bacterium, which causes a variety of stomach disorders, such as peptic ulcer, chronic atrophic gastritis, and gastric cancer. This microbe frequently colonizes the mucosal layer of the human stomach and survives in the inhospitable microenvironment, by adapting to this hostile milieu. AREAS COVERED In this extensive review, we describe conventional antibiotic treatment regimens used against H. pylori including, empirical, tailored, and salvage therapies. Then, we present state-of-the-art information about reasons for treatment failure against H. pylori. Afterward, the latest advances in the use of probiotic bacteria against H. pylori infection are discussed. Finally, we propose a polymeric bio-platform to provide efficient delivery of probiotics for H. pylori infection. EXPERT OPINION For effective probiotic delivery systems, it is necessary to avoid the early release of probiotics at the acidic stomach pH, to protect them against enzymes and antimicrobials, and precisely target H. pylori bacteria which have colonized the antrum area of the stomach (basic pH).
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Affiliation(s)
- Amir Hossein Miri
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Kamankesh
- Polymer Chemistry Department, School of Science, University of Tehran, Tehran, Iran
| | - Mazda Rad-Malekshahi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Banar
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg Doornfontein, Johannesburg, South Africa
| | - Ismaeil Haririan
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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25
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Vadhwana B, Tarazi M, Boshier PR, Hanna GB. Evaluation of the Oesophagogastric Cancer-Associated Microbiome: A Systematic Review and Quality Assessment. Cancers (Basel) 2023; 15:2668. [PMID: 37345006 PMCID: PMC10216300 DOI: 10.3390/cancers15102668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 06/23/2023] Open
Abstract
OBJECTIVE Oesophagogastric cancer is the fifth most common cancer worldwide, with poor survival outcomes. The role of bacteria in the pathogenesis of oesophagogastric cancer remains poorly understood. DESIGN A systematic search identified studies assessing the oesophagogastric cancer microbiome. The primary outcome was to identify bacterial enrichment specific to oesophagogastric cancer. Secondary outcomes included appraisal of the methodology, diagnostic performance of cancer bacteria and the relationship between oral and tissue microbiome. RESULTS A total of 9295 articles were identified, and 87 studies were selected for analysis. Five genera were enriched in gastric cancer: Lactobacillus, Streptococcus, Prevotella, Fusobacterium and Veillonella. No clear trends were observed in oesophageal adenocarcinoma. Streptococcus, Prevotella and Fusobacterium were abundant in oesophageal squamous cell carcinoma. Functional analysis supports the role of immune cells, localised inflammation and cancer-specific pathways mediating carcinogenesis. STORMS reporting assessment identified experimental deficiencies, considering batch effects and sources of contamination prevalent in low-biomass samples. CONCLUSIONS Functional analysis of cancer pathways can infer tumorigenesis within the cancer-microbe-immune axis. There is evidence that study design, experimental protocols and analytical techniques could be improved to achieve more accurate and representative results. Whole-genome sequencing is recommended to identify key metabolic and functional capabilities of candidate bacteria biomarkers.
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Affiliation(s)
- Bhamini Vadhwana
- Department of Surgery and Cancer, Imperial College London, 7th floor Commonwealth building, Hammersmith Hospital, London W12 0HS, UK
| | - Munir Tarazi
- Department of Surgery and Cancer, Imperial College London, 7th floor Commonwealth building, Hammersmith Hospital, London W12 0HS, UK
| | - Piers R Boshier
- Department of Surgery and Cancer, Imperial College London, 7th floor Commonwealth building, Hammersmith Hospital, London W12 0HS, UK
| | - George B Hanna
- Department of Surgery and Cancer, Imperial College London, 7th floor Commonwealth building, Hammersmith Hospital, London W12 0HS, UK
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26
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Zhou S, Li C, Liu L, Yuan Q, Miao J, Wang H, Ding C, Guan W. Gastric microbiota: an emerging player in gastric cancer. Front Microbiol 2023; 14:1130001. [PMID: 37180252 PMCID: PMC10172576 DOI: 10.3389/fmicb.2023.1130001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 04/04/2023] [Indexed: 05/16/2023] Open
Abstract
Gastric cancer (GC) is a common cancer worldwide with a high mortality rate. Many microbial factors influence GC, of which the most widely accepted one is Helicobacter pylori (H. pylori) infection. H. pylori causes inflammation, immune reactions and activation of multiple signaling pathways, leading to acid deficiency, epithelial atrophy, dysplasia and ultimately GC. It has been proved that complex microbial populations exist in the human stomach. H. pylori can affect the abundance and diversity of other bacteria. The interactions among gastric microbiota are collectively implicated in the onset of GC. Certain intervention strategies may regulate gastric homeostasis and mitigate gastric disorders. Probiotics, dietary fiber, and microbiota transplantation can potentially restore healthy microbiota. In this review, we elucidate the specific role of the gastric microbiota in GC and hope these data can facilitate the development of effective prevention and therapeutic approaches for GC.
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Affiliation(s)
- Shizhen Zhou
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chenxi Li
- Laboratory Medicine Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lixiang Liu
- Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qinggang Yuan
- Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Xuzhou Medical University, Nanjing, Jiangsu, China
| | - Ji Miao
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Hao Wang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chao Ding
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Wenxian Guan
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
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27
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Lopes C, Almeida TC, Pimentel-Nunes P, Dinis-Ribeiro M, Pereira C. Linking dysbiosis to precancerous stomach through inflammation: Deeper than and beyond imaging. Front Immunol 2023; 14:1134785. [PMID: 37063848 PMCID: PMC10102473 DOI: 10.3389/fimmu.2023.1134785] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/17/2023] [Indexed: 04/03/2023] Open
Abstract
Upper gastrointestinal endoscopy is considered the gold standard for gastric lesions detection and surveillance, but it is still associated with a non-negligible rate of missing conditions. In the Era of Personalized Medicine, biomarkers could be the key to overcome missed lesions or to better predict recurrence, pushing the frontier of endoscopy to functional endoscopy. In the last decade, microbiota in gastric cancer has been extensively explored, with gastric carcinogenesis being associated with progressive dysbiosis. Helicobacter pylori infection has been considered the main causative agent of gastritis due to its interference in disrupting the acidic environment of the stomach through inflammatory mediators. Thus, does inflammation bridge the gap between gastric dysbiosis and the gastric carcinogenesis cascade and could the microbiota-inflammation axis-derived biomarkers be the answer to the unmet challenge of functional upper endoscopy? To address this question, in this review, the available evidence on the role of gastric dysbiosis and chronic inflammation in precancerous conditions of the stomach is summarized, particularly targeting the nuclear factor-κB (NF-κB), toll-like receptors (TLRs) and cyclooxygenase-2 (COX-2) pathways. Additionally, the potential of liquid biopsies as a non-invasive source and the clinical utility of studied biomarkers is also explored. Overall, and although most studies offer a mechanistic perspective linking a strong proinflammatory Th1 cell response associated with, but not limited to, chronic infection with Helicobacter pylori, promising data recently published highlights not only the diagnostic value of microbial biomarkers but also the potential of gastric juice as a liquid biopsy pushing forward the concept of functional endoscopy and personalized care in gastric cancer early diagnosis and surveillance.
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Affiliation(s)
- Catarina Lopes
- Precancerous Lesions and Early Cancer Management Group, Research Center of IPO Porto (CI‐IPOP)/Rise@CI‐IPOP (Health Research Group), Portuguese Institute of Oncology of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- CINTESIS – Center for Health Technology and Services Research, University of Porto, Porto, Portugal
- ICBAS-UP – Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Tatiana C. Almeida
- Precancerous Lesions and Early Cancer Management Group, Research Center of IPO Porto (CI‐IPOP)/Rise@CI‐IPOP (Health Research Group), Portuguese Institute of Oncology of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
| | - Pedro Pimentel-Nunes
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto (FMUP), Porto, Portugal
- Department of Gastroenterology, Unilabs, Porto, Portugal
| | - Mário Dinis-Ribeiro
- Precancerous Lesions and Early Cancer Management Group, Research Center of IPO Porto (CI‐IPOP)/Rise@CI‐IPOP (Health Research Group), Portuguese Institute of Oncology of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- Department of Gastroenterology, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Carina Pereira
- Precancerous Lesions and Early Cancer Management Group, Research Center of IPO Porto (CI‐IPOP)/Rise@CI‐IPOP (Health Research Group), Portuguese Institute of Oncology of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- CINTESIS – Center for Health Technology and Services Research, University of Porto, Porto, Portugal
- *Correspondence: Carina Pereira,
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28
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Xi J, Li Y, Zhang H, Bai Z. Dynamic variations of the gastric microbiota: Key therapeutic points in the reversal of Correa's cascade. Int J Cancer 2023; 152:1069-1084. [PMID: 36029278 DOI: 10.1002/ijc.34264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 01/21/2023]
Abstract
Correa's cascade is a dynamic process in the development of intestinal-type gastric cancer (GC), and its pathological features, gastric microbiota and interactions between microorganisms and their hosts vary at different developmental stages. The characteristics of cells, tissues and gastric microbiota before or after key therapeutic points are critical for monitoring malignant transformation and early tumour reversal. This review summarises the pathological features of gastric mucosa, characteristics of gastric microbiota, specific microbial markers, microbe-microbe interactions and microbe-host interactions at different stages in Correa's cascade. The markers related to each Correa's cascade point were analysed in detail. We attempted to identify key therapeutic points for early cancer reversal and provide a novel approach to reduce the incidence of GC and improve precise treatment.
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Affiliation(s)
- Jiahui Xi
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Key Laboratory of Biotherapy and Regenerative Medicine, Gansu Province, Lanzhou, China
| | - Yonghong Li
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumour, Gansu Provincial Hospital, Lanzhou, China
| | - Hui Zhang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, China
| | - Zhongtian Bai
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Key Laboratory of Biotherapy and Regenerative Medicine, Gansu Province, Lanzhou, China.,General Surgery Department, The First Hospital of Lanzhou University, Lanzhou, China
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29
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Yu T, Lu T, Deng W, Yao D, He C, Luo P, Song J. Microbiome and function alterations in the gastric mucosa of asymptomatic patients with Helicobacter pylori infection. Helicobacter 2023; 28:e12965. [PMID: 36890119 DOI: 10.1111/hel.12965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/10/2023]
Abstract
BACKGROUND Most patients with Helicobacter pylori (H. pylori) infection have no clinical symptoms, numerous studies reported the gastric microbiome in H. pylori-infected patients, but asymptomatic patients have not been distinguished. How the microbiome and function changes in asymptomatic patients with H. pylori infection remains poorly understood. METHODS A total of 29 patients were divided into H. pylori-infected asymptomatic group (10 patients), H. pylori-infected symptomatic group (11 patients) and H. pylori-uninfected group (8 patients). Gastric mucosa specimens were taken for histopathological examination, special staining, and 16 S rDNA sequencing. High-throughput results were evaluated by community composition analysis, indicator species analysis, alpha diversity analysis, beta diversity analysis, and function prediction. RESULTS The gastric microbiota composition at phylum and genus level of H. pylori-infected asymptomatic patients were similar with H. pylori-infected symptomatic group, but different from H. pylori-uninfected patients. The diversity and richness of gastric microbial community declined significantly in H. pylori-infected asymptomatic group comparing with H. pylori-uninfected group. Sphingomonas may be an indicator between symptomatic and asymptomatic patients with H. pylori infection, the AUC value of Sphingomonas is 0.79. Interactions between species increased and altered notably after H. pylori infection. More genera were affected by Helicobacter in H. pylori-infected asymptomatic patients. The function condition changed significantly in asymptomatic patients with H. pylori infection, there was no difference comparing with symptomatic ones. Amino acid metabolism and lipid metabolism strengthened but carbohydrate metabolism remained constant after H. pylori infection. The metabolism of fatty acid and bile acid was disturbed after infection with H. pylori. CONCLUSION The gastric microbiota composition and function mode changed significantly after H. pylori infection regardless of the presence of clinical symptoms, there was no difference between H. pylori-infected asymptomatic and symptomatic patients. The difference in gastric microbiota composition and interactions between species might be responsible for presence of digestive symptoms.
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Affiliation(s)
- Tingting Yu
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Tianyu Lu
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Wei Deng
- Department of Pathology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Danping Yao
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Cheng He
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Peng Luo
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Jian Song
- Department of Gastroenterology, Southern University of Science and Technology Hospital, Shenzhen, China
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Sorini C, Tripathi KP, Wu S, Higdon SM, Wang J, Cheng L, Banerjee S, Reinhardt A, Kreslavsky T, Thorell A, Engstrand L, Du J, Villablanca EJ. Metagenomic and single-cell RNA-Seq survey of the Helicobacter pylori-infected stomach in asymptomatic individuals. JCI Insight 2023; 8:161042. [PMID: 36810249 PMCID: PMC9977493 DOI: 10.1172/jci.insight.161042] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 01/11/2023] [Indexed: 02/23/2023] Open
Abstract
Helicobacter pylori colonization of the gastric niche can persist for years in asymptomatic individuals. To deeply characterize the host-microbiota environment in H. pylori-infected (HPI) stomachs, we collected human gastric tissues and performed metagenomic sequencing, single-cell RNA-Seq (scRNA-Seq), flow cytometry, and fluorescent microscopy. HPI asymptomatic individuals had dramatic changes in the composition of gastric microbiome and immune cells compared with noninfected individuals. Metagenomic analysis uncovered pathway alterations related to metabolism and immune response. scRNA-Seq and flow cytometry data revealed that, in contrast to murine stomachs, ILC2s are virtually absent in the human gastric mucosa, whereas ILC3s are the dominant population. Specifically, proportion of NKp44+ ILC3s out of total ILCs were highly increased in the gastric mucosa of asymptomatic HPI individuals, and correlated with the abundance of selected microbial taxa. In addition, CD11c+ myeloid cells and activated CD4+ T cells and B cells were expanded in HPI individuals. B cells of HPI individuals acquired an activated phenotype and progressed into a highly proliferating germinal-center stage and plasmablast maturation, which correlated with the presence of tertiary lymphoid structures within the gastric lamina propria. Our study provides a comprehensive atlas of the gastric mucosa-associated microbiome and immune cell landscape when comparing asymptomatic HPI and uninfected individuals.
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Affiliation(s)
- Chiara Sorini
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
| | - Kumar P Tripathi
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
| | - Shengru Wu
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Shawn M Higdon
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Jing Wang
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Liqin Cheng
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Sanghita Banerjee
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
| | - Annika Reinhardt
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
| | - Taras Kreslavsky
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
| | | | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Juan Du
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Eduardo J Villablanca
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Center of Molecular Medicine, Stockholm, Sweden
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Nikitina D, Lehr K, Vilchez-Vargas R, Jonaitis LV, Urba M, Kupcinskas J, Skieceviciene J, Link A. Comparison of genomic and transcriptional microbiome analysis in gastric cancer patients and healthy individuals. World J Gastroenterol 2023; 29:1202-1218. [PMID: 36926663 PMCID: PMC10011954 DOI: 10.3748/wjg.v29.i7.1202] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/19/2022] [Accepted: 12/21/2022] [Indexed: 02/21/2023] Open
Abstract
BACKGROUND Helicobacter pylori and the stomach microbiome play a crucial role in gastric carcinogenesis, and detailed characterization of the microbiome is necessary for a better understanding of the pathophysiology of the disease. There are two common modalities for microbiome analysis: DNA (16S rRNA gene) and RNA (16S rRNA transcript) sequencing. The implications from the use of one or another sequencing approach on the characterization and comparability of the mucosal microbiome in gastric cancer (GC) are poorly studied.
AIM To characterize the microbiota of GC using 16S rRNA gene and its transcript and determine difference in the bacterial composition.
METHODS In this study, 316 DNA and RNA samples extracted from 105 individual stomach biopsies were included. The study cohort consisted of 29 healthy control individuals and 76 patients with GC. Gastric tissue biopsy samples were collected from damaged mucosa and healthy mucosa at least 5 cm from the tumor tissue. From the controls, healthy stomach mucosa biopsies were collected. From all biopsies RNA and DNA were extracted. RNA was reverse transcribed into cDNA. V1-V2 region of bacterial 16S rRNA gene from all samples were amplified and sequenced on an Illumina MiSeq platform. Bray-Curtis algorithm was used to construct sample-similarity matrices abundances of taxonomic ranks in each sample type. For significant differences between groups permutational multivariate analysis of variance and Mann-Whitney test followed by false-discovery rate test were used.
RESULTS Microbial analysis revealed that only a portion of phylotypes (18%-30%) overlapped between microbial profiles obtained from DNA and RNA samples. Detailed analysis revealed differences between GC and controls depending on the chosen modality, identifying 17 genera at the DNA level and 27 genera at the RNA level. Ten of those bacteria were found to be different from the control group at both levels. The key taxa showed congruent results in various tests used; however, differences in 7 bacteria taxa were found uniquely only at the DNA level, and 17 uniquely only at the RNA level. Furthermore, RNA sequencing was more sensitive for detecting differences in bacterial richness, as well as differences in the relative abundance of Reyranella and Sediminibacterium according to the type of GC. In each study group (control, tumor, and tumor adjacent) were found differences between DNA and RNA bacterial profiles.
CONCLUSION Comprehensive microbial study provides evidence for the effect of choice of sequencing modality on the microbiota profile, as well as on the identified differences between case and control.
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Affiliation(s)
- Darja Nikitina
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Konrad Lehr
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg 39120, Germany
| | - Ramiro Vilchez-Vargas
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg 39120, Germany
| | | | - Mindaugas Urba
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Juozas Kupcinskas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg 39120, Germany
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Ağagündüz D, Cocozza E, Cemali Ö, Bayazıt AD, Nanì MF, Cerqua I, Morgillo F, Saygılı SK, Berni Canani R, Amero P, Capasso R. Understanding the role of the gut microbiome in gastrointestinal cancer: A review. Front Pharmacol 2023; 14:1130562. [PMID: 36762108 PMCID: PMC9903080 DOI: 10.3389/fphar.2023.1130562] [Citation(s) in RCA: 53] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 01/10/2023] [Indexed: 01/26/2023] Open
Abstract
Gastrointestinal cancer represents one of the most diagnosed types of cancer. Cancer is a genetic and multifactorial disease, influenced by the host and environmental factors. It has been stated that 20% of cancer is caused by microorganisms such as Helicobacter pylori, hepatitis B and C virus, and human papillomavirus. In addition to these well-known microorganisms associated with cancer, it has been shown differences in the composition of the microbiota between healthy individuals and cancer patients. Some studies have suggested the existence of the selected microorganisms and their metabolites that can promote or inhibit tumorigenesis via some mechanisms. Recent findings have shown that gut microbiome and their metabolites can act as cancer promotors or inhibitors. It has been shown that gastrointestinal cancer can be caused by a dysregulation of the expression of non-coding RNA (ncRNA) through the gut microbiome. This review will summarize the latest reports regarding the relationship among gut microbiome, ncRNAs, and gastrointestinal cancer. The potential applications of diagnosing and cancer treatments will be discussed.
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Affiliation(s)
- Duygu Ağagündüz
- Department of Nutrition and Dietetics, Gazi University, Emek, Ankara, Turkey
| | | | - Özge Cemali
- Department of Nutrition and Dietetics, Gazi University, Emek, Ankara, Turkey
| | - Ayşe Derya Bayazıt
- Department of Nutrition and Dietetics, Gazi University, Emek, Ankara, Turkey
| | | | - Ida Cerqua
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
| | - Floriana Morgillo
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Suna Karadeniz Saygılı
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,Department of Histology and Embryology, Kütahya Health Sciences University, Kütahya, Turkey
| | - Roberto Berni Canani
- Department of Translational Medical Science and ImmunoNutritionLab at CEINGE Biotechnologies Research Center and Task Force for Microbiome Studies, University of Naples Federico II, Naples, Italy
| | - Paola Amero
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,*Correspondence: Raffaele Capasso, ; Paola Amero,
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy,*Correspondence: Raffaele Capasso, ; Paola Amero,
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Wei Q, Zhang Q, Wu Y, Han S, Yin L, Zhang J, Gao Y, Shen H, Zhuang J, Chu J, Liu J, Wei Y. Analysis of bacterial diversity and community structure in gastric juice of patients with advanced gastric cancer. Discov Oncol 2023; 14:7. [PMID: 36662326 PMCID: PMC9860007 DOI: 10.1007/s12672-023-00612-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The occurrence and development of gastric cancer are related to microorganisms, which can be used as potential biomarkers of gastric cancer. OBJECTIVE To screen the microbiological markers of gastric cancer from the microorganisms of gastric juice. METHODS Gastric juice samples were collected from 61 healthy people and 78 patients with gastric cancer (48 cases of early gastric cancer and 30 cases of advanced gastric cancer). The bacterial 16 S rRNA V1-V4 region of gastric juice samples was sequenced. The Shannon index, Simpson index, Ace index and Chao index were used to analyze the diversity of gastric juice samples. The RDP classifier Bayesian algorithm was used to analyze the community structure of 97% OTU representative sequences with similar levels. Linear discriminant analysis and ST-test were used to analyze the differences. Six machine learning algorithms, including the logistic regression algorithm, random forest algorithm, neural network algorithm, support vector machine algorithm, Catboost algorithm and gradient lifting tree algorithm, were used to construct risk prediction models for gastric cancer and advanced gastric cancer. RESULTS The microbiota diversity and the abundance of bacteria was different in the healthy group, early gastric cancer and advanced gastric cancer (P < 0.05). The top five abundant bacteria among the three groups were Streptococcus, Rhodococcus, Prevotella, Pseudomonas and Helicobacter. Bacterial flora such as Streptococcus, Rhodococcus and Ochrobactrum were significantly different between the healthy group and the gastric cancer group. The accuracy of the random forest prediction model is the highest (82.73% correct). The bacteria with the highest predictive value included Streptococcus, Lactobacillus and Ochrobactrum. The abundance of bacteria such as Fusobacterium, Capnocytophaga, Atopobium, Corynebacterium was high in the advanced gastric cancer group. CONCLUSION Gastric juice bacteria can be used as potential biomarkers to predict the occurrence and development of gastric cancer.
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Affiliation(s)
- Qiang Wei
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Qi Zhang
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Yinhang Wu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, People's Republic of China
| | - Shuwen Han
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of Huzhou, Huzhou, People's Republic of China
| | - Lei Yin
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Jinyu Zhang
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Yuhai Gao
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Hong Shen
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Jing Zhuang
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China
| | - Jian Chu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, People's Republic of China
| | - Jiang Liu
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China.
| | - Yunhai Wei
- Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No.1558, Sanhuan North Road, Wuxing District, Zhejiang Province, 313000, Huzhou, People's Republic of China.
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Guo Y, Cao XS, Zhou MG, Yu B. Gastric microbiota in gastric cancer: Different roles of Helicobacter pylori and other microbes. Front Cell Infect Microbiol 2023; 12:1105811. [PMID: 36704105 PMCID: PMC9871904 DOI: 10.3389/fcimb.2022.1105811] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023] Open
Abstract
Gastric cancer (GC) is one of the leading causes of cancer-related deaths worldwide. The gastric microbiota plays a critical role in the development of GC. First, Helicobacter pylori (H. pylori) infection is considered a major risk factor for GC. However, recent studies based on microbiota sequencing technology have found that non-H. pylori microbes also exert effects on gastric carcinogenesis. Following the infection of H. pylori, gastric microbiota dysbiosis could be observed; the stomach is dominated by H. pylori and the abundances of non-H. pylori microbes reduce substantially. Additionally, decreased microbial diversity, alterations in the microbial community structure, negative interactions between H. pylori and other microbes, etc. occur, as well. With the progression of gastric lesions, the number of H. pylori decreases and the number of non-H. pylori microbes increases correspondingly. Notably, H. pylori and non-H. pylori microbes show different roles in different stages of gastric carcinogenesis. In the present mini-review, we provide an overview of the recent findings regarding the role of the gastric microbiota, including the H. pylori and non-H. pylori microbes, in the development of GC.
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Affiliation(s)
- Yang Guo
- Department of Dermatology, Institute of Dermatology, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Xue-Shan Cao
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, China
| | - Meng-Ge Zhou
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Bo Yu
- Department of Dermatology, Institute of Dermatology, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
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Wang Z, Shao SL, Xu XH, Zhao X, Wang MY, Chen A, Cong HY. Helicobacter pylori and gastric microbiota homeostasis: progress and prospects. Future Microbiol 2023; 18:137-157. [PMID: 36688318 DOI: 10.2217/fmb-2022-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Helicobacter pylori, a Gram-negative microaerobic bacteria belonging to the phylum Proteobacteria, can colonize in the stomach and duodenum, and cause a series of gastrointestinal diseases such as gastritis, gastric ulcer and even gastric cancer. At present, the high diversity of the microorganisms in the stomach has been confirmed with culture-independent methods; some researchers have also studied the stomach microbiota composition at different stages of H. pylori carcinogenesis. Here, we mainly review the possible role of H. pylori-mediated microbiota changes in the occurrence and development of gastric cancer to provide new ideas for preventing H. pylori infection and regulating microecological imbalance.
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Affiliation(s)
- Zan Wang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Shu-Li Shao
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Xiao-Han Xu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Xue Zhao
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Ming-Yi Wang
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Ai Chen
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Hai-Yan Cong
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
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Zhang L, Zhao M, Fu X. Gastric microbiota dysbiosis and Helicobacter pylori infection. Front Microbiol 2023; 14:1153269. [PMID: 37065152 PMCID: PMC10098173 DOI: 10.3389/fmicb.2023.1153269] [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: 01/29/2023] [Accepted: 03/14/2023] [Indexed: 04/18/2023] Open
Abstract
Helicobacter pylori (H. pylori) infection is one of the most common causes of gastric disease. The persistent increase in antibiotic resistance worldwide has made H. pylori eradication challenging for clinicians. The stomach is unsterile and characterized by a unique niche. Communication among microorganisms in the stomach results in diverse microbial fitness, population dynamics, and functional capacities, which may be positive, negative, or neutral. Here, we review gastric microecology, its imbalance, and gastric diseases. Moreover, we summarize the relationship between H. pylori and gastric microecology, including non-H. pylori bacteria, fungi, and viruses and the possibility of facilitating H. pylori eradication by gastric microecology modulation, including probiotics, prebiotics, postbiotics, synbiotics, and microbiota transplantation.
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Affiliation(s)
- Ling Zhang
- Department of Gastroenterology, Clinical Medical College, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Ming Zhao
- Department of Gastroenterology, Clinical Medical College, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Xiangsheng Fu
- Department of Gastroenterology, Clinical Medical College, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
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Effects of Helicobacter pylori and Nitrate-Reducing Bacteria Coculture on Cells. Microorganisms 2022; 10:microorganisms10122495. [PMID: 36557748 PMCID: PMC9785519 DOI: 10.3390/microorganisms10122495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Helicobacter pylori infection is an important risk factor for developing gastric cancer. However, only a few H. pylori-infected people develop gastric cancer. Thus, other risk factors aside from H. pylori infection may be involved in gastric cancer development. This study aimed to investigate whether the nitrate-reducing bacteria isolated from patients with atrophic gastritis caused by H. pylori infection are risk factors for developing atrophic gastritis and gastric neoplasia. Nitrate-reducing bacteria were isolated from patients with atrophic gastritis caused by H. pylori infection. Among the isolated bacteria, Actinomyces oris, Actinomyces odontolyticus, Rothia dentocariosa, and Rothia mucilaginosa were used in the subsequent experiments. Cytokine inducibility was evaluated in monocytic cells, and mitogen-activated protein kinase (MAPK) activity and cell cycle were assessed in the gastric epithelial cells. The cytotoxicities and neutrophil-inducing abilities of the Actinomyces and Rothia species were enhanced when cocultured with H. pylori. Th1/Th2-related cytokines were also expressed, but their expression levels differed depending on the bacterial species. Moreover, H. pylori and Actinomyces activated MAPK (ERK and p38) and affected cell cycle progression. Some nitrate-reducing bacteria cocultured with H. pylori may promote inflammation and atrophy by inducing cytokine production. In addition, the MAPK activation and cell cycle progression caused by these bacteria can contribute to gastric cancer development.
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Najafi S, Majidpoor J, Mortezaee K. The impact of microbiota on PD-1/PD-L1 inhibitor therapy outcomes: A focus on solid tumors. Life Sci 2022; 310:121138. [DOI: 10.1016/j.lfs.2022.121138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/02/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
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Liu D, Zhang R, Chen S, Sun B, Zhang K. Analysis of gastric microbiome reveals three distinctive microbial communities associated with the occurrence of gastric cancer. BMC Microbiol 2022; 22:184. [PMID: 35870901 PMCID: PMC9308235 DOI: 10.1186/s12866-022-02594-y] [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: 02/18/2022] [Accepted: 07/13/2022] [Indexed: 12/02/2022] Open
Abstract
Background Gastric microbial dysbiosis were reported to be associated with gastric cancer (GC). This study aimed to explore the variation, diversity, and composition patterns of gastric bacteria in stages of gastric carcinogenesis based on the published datasets. Methods We conducted a gastric microbial analysis using 10 public datasets based on 16S rRNA sequencing, including 1270 gastric biopsies of 109 health control, 183 superficial gastritis (SG), 135 atrophic gastritis (AG), 124 intestinal metaplasia (IM), 94 intraepithelial neoplasia (IN), 344 GC, and 281 adjacent normal tissues. And QIIME2-pipeline, DESeq2, NetMoss2, vegan, igraph, and RandomForest were used for the data processing and analysis. Results We identified three gastric microbial communities among all the gastric tissues. The first community (designate as GT-H) was featured by the high abundance of Helicobacter. The other two microbial communities, namely GT-F, and GT-P, were featured by the enrichment of phylum Firmicutes and Proteobacteria, respectively. The distribution of GC-associated bacteria, such as Fusobacterium, Peptostreptococcus, Streptococcus, and Veillonella were enriched in tumor tissues, and mainly distributed in GT-F type microbial communities. Compared with SG, AG, and IM, the bacterial diversity in GC was significantly reduced. And the strength of microbial interaction networks was initially increased in IM but gradually decreased from IN to GC. In addition, Randomforest models constructed in in GT-H and GT-F microbial communities showed excellent performance in distinguishing GC from SG and precancerous stages, with varied donated bacteria. Conclusions This study identified three types of gastric microbiome with different patterns of composition which helps to clarify the potential key bacteria in the development of gastric carcinogenesis. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02594-y.
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Interaction of microbiome and immunity in tumorigenesis and clinical treatment. Biomed Pharmacother 2022; 156:113894. [DOI: 10.1016/j.biopha.2022.113894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/12/2022] [Accepted: 10/17/2022] [Indexed: 11/15/2022] Open
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41
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Li S, Li Q, Lu W. Intratumoral microbiome and gastrointestinal cancers. Front Oncol 2022; 12:1047015. [DOI: 10.3389/fonc.2022.1047015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/11/2022] [Indexed: 11/30/2022] Open
Abstract
Emerging studies have revealed the role of microbiota in regulating tumorigenesis, development, and response to antitumor treatment. However, most studies have focused on gut microbiota, and little is known about the intratumoral microbiome. To date, the latest research has indicated that the intratumoral microbiome is a key component of the tumor microenvironment (TME), and can promote a heterogeneous immune microenvironment, reprogram tumor metabolism to affect tumor invasion and metastasis. In this review, we will summarize existing studies on the intratumoral microbiome of gastrointestinal cancers and reveal their crosstalk. This will provide a better understanding of this emerging field and help to explore new therapeutic approaches for cancer patients by targeting the intratumoral microbiome.
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Kim HN, Kim MJ, Jacobs JP, Yang HJ. Altered Gastric Microbiota and Inflammatory Cytokine Responses in Patients with Helicobacter pylori-Negative Gastric Cancer. Nutrients 2022; 14:nu14234981. [PMID: 36501012 PMCID: PMC9740132 DOI: 10.3390/nu14234981] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022] Open
Abstract
The role of the gastric mucosal microbiome in Helicobacter pylori-negative gastric cancer (GC) remains unclear. Therefore, we aimed to characterize the microbial alterations and host inflammatory cytokine responses in H. pylori-negative GC. Gastric mucosal samples were obtained from 137 H. pylori-negative patients with GC (n = 45) and controls (chronic gastritis or intestinal metaplasia, n = 92). We performed 16S rRNA gene sequencing (n = 67), a quantitative reverse transcription-polymerase chain reaction to determine the relative mRNA expression levels of TNF (tumor necrosis factor), IL1B (interleukin 1 beta), IL6 (interleukin 6), CXCL8 (C-X-C motif chemokine ligand 8), IL10 (interleukin 10), IL17A (interleukin 17A), TGFB1 (transforming growth factor beta 1) (n = 113), and the correlation analysis between sequencing and expression data (n = 47). Gastric mucosal microbiota in patients with GC showed reduced diversity and a significantly different composition compared to that of the controls. Lacticaseibacillus was significantly enriched, while Haemophilus and Campylobacter were depleted in the cancer group compared to the control group. These taxa could distinguish the two groups in a random forest algorithm. Moreover, the combined relative abundance of these taxa, a GC microbiome index, significantly correlated with gastric mucosal IL1B expression, which was elevated in the cancer group. Overall, altered gastric mucosal microbiota was found to be associated with increased mucosal IL1B expression in H. pylori-negative GC.
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Affiliation(s)
- Han-Na Kim
- Medical Research Institute, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul 06355, Republic of Korea
| | - Min-Jeong Kim
- Medical Research Institute, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
| | - Jonathan P. Jacobs
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Hyo-Joon Yang
- Medical Research Institute, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
- Division of Gastroenterology, Department of Internal Medicine and Gastrointestinal Cancer Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
- Correspondence:
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43
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Microbiota and gastric cancer. Semin Cancer Biol 2022; 86:11-17. [PMID: 35533800 DOI: 10.1016/j.semcancer.2022.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 01/27/2023]
Abstract
The discovery of Helicobacter pylori in 1982 drew to an end the stomach being considered as a sterile organ. Later, the progress in molecular methods, especially Next Generation Sequencing and metagenomics, has highlighted the fact that a diverse microbiota including five major phyla could also be present in the stomach. However, when present, H. pylori is the essential species and it influences the other bacterial communities in terms of richness and evenness. It is now well accepted that H. pylori is the main risk factor for gastric cancer, especially the strains harboring the cag pathogenicity island and the CagA oncoprotein, but the need for other factors from the host and the environment can explain the important difference between those infected and those developing gastric cancer. Several studies showed a difference between the gastric microbiota of patients at various stages of development of gastric premalignant and malignant lesions, showing globally a reduced microbial diversity and an increase in the presence of intestinal commensals, especially with nitrosative functions. Other studies showed an increase in oral microbiota. These data suggest that the gastric microbiota other than H. pylori may play a role in the last steps of gastric carcinogenesis. It must also be noted that in a limited number of cases, a virus: the Epstein Barr Virus is responsible for the evolution toward gastric cancer, while in others the mycobiota also needs to be explored. Finally, the use of mice models allowed an exploration of the role of different gastric microbiota in addition to H. pylori.
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Zi M, Zhang Y, Hu C, Zhang S, Chen J, Yuan L, Cheng X. A literature review on the potential clinical implications of streptococci in gastric cancer. Front Microbiol 2022; 13:1010465. [PMID: 36386672 PMCID: PMC9643750 DOI: 10.3389/fmicb.2022.1010465] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/03/2022] [Indexed: 10/29/2023] Open
Abstract
Streptococcus is widely found in nature and the human body, and most species are not pathogenic. In recent years, studies have found that Streptococcus is associated with gastric cancer. Streptococcus was found to be enriched in the oral cavity, stomach and intestine of gastric cancer patients and found to be increased in gastric cancer tissues, suggesting that Streptococcus may be the pathogenic bacteria underlying gastric cancer. This review discusses the discovery of Streptococcus, the relationship between Streptococcus and gastric cancer, and the possible carcinogenic mechanism of Streptococcus and summarizes the progress of the research on the role of Streptococcus in gastric cancer to provide new ideas for the early detection, diagnosis and treatment of gastric cancer.
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Affiliation(s)
- Mengli Zi
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Yanqiang Zhang
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
| | - Can Hu
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
| | - Shengjie Zhang
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jinxia Chen
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
| | - Li Yuan
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xiangdong Cheng
- Department of Gastric surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institutes of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, China
- Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, China
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45
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Yang Y, Dai D, Jin W, Huang Y, Zhang Y, Chen Y, Wang W, Lin W, Chen X, Zhang J, Wang H, Zhang H, Teng L. Microbiota and metabolites alterations in proximal and distal gastric cancer patients. J Transl Med 2022; 20:439. [PMID: 36180919 PMCID: PMC9524040 DOI: 10.1186/s12967-022-03650-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/18/2022] [Indexed: 12/24/2022] Open
Abstract
Background Globally, gastric cancer is the third most common cancer and the third leading cause of cancer death. Proximal and distal gastric cancers have distinct clinical and biological behaviors. The microbial composition and metabolic differences in proximal and distal gastric cancers have not been fully studied and discussed. Methods In this study, the gastric microbiome of 13 proximal gastric cancer tissues, 16 distal gastric cancer tissues, and their matched non-tumor tissues were characterized using 16S rRNA amplicon sequencing. Additionally, 10 proximal gastric cancer tissues, 11 distal gastric cancer tissues, and their matched non-tumor tissues were assessed by untargeted metabolomics. Results There was no significant difference in microbial diversity and richness between the proximal and distal gastric cancer tissues. At the genus level, the abundance of Rikenellaceae_RC9_gut_group, Porphyromonas, Catonella, Proteus, Oribacterium, and Moraxella were significantly increased in Proximal T, whereas that of Methylobacterium_Methylorubrum was significantly increased in Distal T. The untargeted metabolomics analysis revealed 30 discriminative metabolites between Distal T and Distal N. In contrast, there were only 4 discriminative metabolites between Proximal T and Proximal N. In distal gastric cancer, different metabolites were scattered through multiple pathway, including the sphingolipid signaling pathway, arginine biosynthesis, protein digestion and absorption, alanine, aspartate and, glutamate metabolism, etc.In proximal gastric cancer, differential microbial metabolites were mainly related to hormone metabolism. Conclusion Methylobacterium-Methylorubrum was significantly increased in Distal T, positively correlated with cancer-promoting metabolites, and negatively correlated with cancer-inhibiting metabolites. Rikenellaceae_RC_gut_group was significantly increased in Proximal T and positively correlated with cancer-promoting metabolites. Further studies regarding the functions of the above-mentioned microorganisms and metabolites were warranted as the results may reveal the different mechanisms underlying the occurrence and development of proximal and distal gastric cancers and provide a basis for future treatments. Importance First, the differences in microbial composition and metabolites between the proximal and distal gastric cancers were described; then, the correlation between microbiota and metabolites was preliminarily discussed. These microbes and metabolites deserve further investigations as they may reveal the different mechanisms involved in the occurrence and development of proximal and distal gastric cancers and provide a basis for future treatments. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03650-x.
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Affiliation(s)
- Yan Yang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Daofeng Dai
- Jiangxi Otorhinolaryngology Head and Neck Surgery Institute, Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Wen Jin
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yingying Huang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yingzi Zhang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yiran Chen
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Wankun Wang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Wu Lin
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Xiangliu Chen
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Jing Zhang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Haohao Wang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Haibin Zhang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
| | - Lisong Teng
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
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Liu D, Wang J, Xie Y. Refractory Helicobacter pylori infection and the gastric microbiota. Front Cell Infect Microbiol 2022; 12:976710. [PMID: 36237432 PMCID: PMC9552320 DOI: 10.3389/fcimb.2022.976710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/15/2022] [Indexed: 12/02/2022] Open
Abstract
Background Curing refractory Helicobacter pylori infection is difficult. In addition, there is currently no research on the gastric microbiota of refractory H. pylori infection. Methods We designed a clinical retrospective study involving 32 subjects divided into three groups: 1. nAGHp.a, treatment-naïve patients with H. pylori infection; 2. nAGHp.b, H. pylori-negative patients; and 3. EFHp.a, patients with refractory H. pylori infection. Gastric mucosal samples from the biobank of our research center were collected for 16S rRNA sequencing analysis and bacterial functions were predicted via PICRUSt. Results There were significant differences between the H. pylori- positive group and the H. pylori-negative group in species diversity, gastric microbiota structure, and bacterial function. The beneficial Lactobacillus in the H. pylori-positive group were significantly enriched compared with those in the refractory H. pylori infection group. The bacterial interaction network diagram suggested that the microbiota interactions in the refractory H. pylori infection group decreased. The gastric microbiota of the refractory H. pylori infection group was enriched in the pathways of metabolism and infectious diseases (energy metabolism, bacterial secretion system, glutathione metabolism, protein folding and associated processing, sulphur metabolism, membrane and intracellular structural molecules, lipopolysaccharide biosynthesis, ubiquinone and other terpenoid-quinone biosynthesis, inorganic ion transport and metabolism, and metabolism of cofactors and vitamins) when compared with the H. pylori-positive group without treatment based on PICRUSt analysis. Conclusion Significant alterations occurred in the gastric microbiota when eradication of H. pylori failed multiple times. A history of eradication of multiple H. pylori infections leads to an imbalance in the gastric mucosal microbiota to a certain extent, which was mainly reflected in the inhibition of the growth of beneficial Lactobacillus in the stomach. Patients with refractory H. pylori infection may be at a higher risk of developing gastric cancer than other H. pylori-positive patients.
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Affiliation(s)
- Dongsheng Liu
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- JiangXi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jinyun Wang
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- JiangXi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yong Xie
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- JiangXi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Yong Xie,
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Agnarelli A, Vella V, Samuels M, Papanastasopoulos P, Giamas G. Incorporating Immunotherapy in the Management of Gastric Cancer: Molecular and Clinical Implications. Cancers (Basel) 2022; 14:cancers14184378. [PMID: 36139540 PMCID: PMC9496849 DOI: 10.3390/cancers14184378] [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: 07/07/2022] [Revised: 08/30/2022] [Accepted: 09/05/2022] [Indexed: 01/30/2023] Open
Abstract
Simple Summary Gastric cancer is one of the most common malignant tumours worldwide, with the fifth and third highest morbidity and mortality, respectively, of all cancers. Survival is limited, as most of the patients are diagnosed at an advanced stage, and are not suitable for surgery with a curative intent. Chemotherapy has only modestly improved patients’ outcomes and is mainly given with a palliative intent. Immunotherapy has improved overall survival of patients with gastric cancer, and has thus become a new standard of care in clinic. In this review we discuss the strong molecular rationale for the administration of immunotherapy in this disease and analyse the clinical data supporting its use. Abstract Gastric cancer has a median survival of 11 months, and this poor prognosis has not improved over the last 30 years. Recent pre-clinical data suggest that there is high tumour-related neoantigen expression in gastric cancer cells, suggesting that a clinical strategy that enhances the host’s immune system against cancer cells may be a successful approach to improve clinical outcomes. Additionally, there has been an increasing amount of translational evidence highlighting the relevance of PD-L1 expression in gastric cancer cells, indicating that PD-1/PD-L1 inhibitors may be useful. Several molecular subgroups of gastric cancer have been identified to respond with excellent outcomes to immunotherapy, including microsatellite instable tumours, tumours bearing a high tumour mutational burden, and tumours related to a chronic EBV infection. In gastric cancer, immunotherapy has produced durable responses in chemo-refractory patients; however, most recently there has been a lot of enthusiasm as several large-scale clinical trials highlight the improved survival noted from the incorporation of immunotherapy in the first line setting for advanced gastric cancer. Our review aims to discuss current pre-clinical and clinical data supporting the innovative role of immunotherapy in gastric cancer.
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Nabavi-Rad A, Sadeghi A, Asadzadeh Aghdaei H, Yadegar A, Smith SM, Zali MR. The double-edged sword of probiotic supplementation on gut microbiota structure in Helicobacter pylori management. Gut Microbes 2022; 14:2108655. [PMID: 35951774 PMCID: PMC9373750 DOI: 10.1080/19490976.2022.2108655] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
As Helicobacter pylori management has become more challenging and less efficient over the last decade, the interest in innovative interventions is growing by the day. Probiotic co-supplementation to antibiotic therapies is reported in several studies, presenting a moderate reduction in drug-related side effects and a promotion in positive treatment outcomes. However, the significance of gut microbiota involvement in the competence of probiotic co-supplementation is emphasized by a few researchers, indicating the alteration in the host gastrointestinal microbiota following probiotic and drug uptake. Due to the lack of long-term follow-up studies to determine the efficiency of probiotic intervention in H. pylori eradication, and the delicate interaction of the gut microbiota with the host wellness, this review aims to discuss the gut microbiota alteration by probiotic co-supplementation in H. pylori management to predict the comprehensive effectiveness of probiotic oral administration.Abbreviations: acyl-CoA- acyl-coenzyme A; AMP- antimicrobial peptide; AMPK- AMP-activated protein kinase; AP-1- activator protein 1; BA- bile acid; BAR- bile acid receptor; BCAA- branched-chain amino acid; C2- acetate; C3- propionate; C4- butyrate; C5- valeric acid; CagA- Cytotoxin-associated gene A; cAMP- cyclic adenosine monophosphate; CD- Crohn's disease; CDI- C. difficile infection; COX-2- cyclooxygenase-2; DC- dendritic cell; EMT- epithelial-mesenchymal transition; FMO- flavin monooxygenases; FXR- farnesoid X receptor; GPBAR1- G-protein-coupled bile acid receptor 1; GPR4- G protein-coupled receptor 4; H2O2- hydrogen peroxide; HCC- hepatocellular carcinoma; HSC- hepatic stellate cell; IBD- inflammatory bowel disease; IBS- irritable bowel syndrome; IFN-γ- interferon-gamma; IgA immunoglobulin A; IL- interleukin; iNOS- induced nitric oxide synthase; JAK1- janus kinase 1; JAM-A- junctional adhesion molecule A; LAB- lactic acid bacteria; LPS- lipopolysaccharide; MALT- mucosa-associated lymphoid tissue; MAMP- microbe-associated molecular pattern; MCP-1- monocyte chemoattractant protein-1; MDR- multiple drug resistance; mTOR- mammalian target of rapamycin; MUC- mucin; NAFLD- nonalcoholic fatty liver disease; NF-κB- nuclear factor kappa B; NK- natural killer; NLRP3- NLR family pyrin domain containing 3; NOC- N-nitroso compounds; NOD- nucleotide-binding oligomerization domain; PICRUSt- phylogenetic investigation of communities by reconstruction of unobserved states; PRR- pattern recognition receptor; RA- retinoic acid; RNS- reactive nitrogen species; ROS- reactive oxygen species; rRNA- ribosomal RNA; SCFA- short-chain fatty acids; SDR- single drug resistance; SIgA- secretory immunoglobulin A; STAT3- signal transducer and activator of transcription 3; T1D- type 1 diabetes; T2D- type 2 diabetes; Th17- T helper 17; TLR- toll-like receptor; TMAO- trimethylamine N-oxide; TML- trimethyllysine; TNF-α- tumor necrosis factor-alpha; Tr1- type 1 regulatory T cell; Treg- regulatory T cell; UC- ulcerative colitis; VacA- Vacuolating toxin A.
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Affiliation(s)
- Ali Nabavi-Rad
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Sadeghi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran,CONTACT Abbas Yadegar ; Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Shahid Arabi Ave., Yemen St., Velenjak, Tehran, Iran
| | - Sinéad Marian Smith
- Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin, Ireland,Sinéad Marian Smith Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin 2, Ireland
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Fakharian F, Asgari B, Nabavi-Rad A, Sadeghi A, Soleimani N, Yadegar A, Zali MR. The interplay between Helicobacter pylori and the gut microbiota: An emerging driver influencing the immune system homeostasis and gastric carcinogenesis. Front Cell Infect Microbiol 2022; 12:953718. [PMID: 36046747 PMCID: PMC9423097 DOI: 10.3389/fcimb.2022.953718] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/25/2022] [Indexed: 01/06/2023] Open
Abstract
The human gut microbiota are critical for preserving the health status because they are required for digestion and nutrient acquisition, the development of the immune system, and energy metabolism. The gut microbial composition is greatly influenced by the colonization of the recalcitrant pathogen Helicobacter pylori (H. pylori) and the conventional antibiotic regimens that follow. H. pylori is considered to be the main microorganism in gastric carcinogenesis, and it appears to be required for the early stages of the process. However, a non-H. pylori microbiota profile is also suggested, primarily in the later stages of tumorigenesis. On the other hand, specific groups of gut microbes may produce beneficial byproducts such as short-chain fatty acids (acetate, butyrate, and propionate) that can modulate inflammation and tumorigenesis pathways. In this review, we aim to present how H. pylori influences the population of the gut microbiota to modify the host immunity and trigger the development of gastric carcinogenesis. We will also highlight the effect of the gut microbiota on immunotherapeutic approaches such as immune checkpoint blockade in cancer treatment to present a perspective for further development of innovative therapeutic paradigms to prevent the progression of H. pylori-induced stomach cancer.
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Affiliation(s)
- Farzaneh Fakharian
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behnoush Asgari
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Nabavi-Rad
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Sadeghi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Neda Soleimani
- Department of Microbiology, Faculty of Biological Sciences and Technology, Shahid Beheshti University, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Abbas Yadegar, ;
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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50
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Malfertheiner P, Megraud F, Rokkas T, Gisbert JP, Liou JM, Schulz C, Gasbarrini A, Hunt RH, Leja M, O'Morain C, Rugge M, Suerbaum S, Tilg H, Sugano K, El-Omar EM. Management of Helicobacter pylori infection: the Maastricht VI/Florence consensus report. Gut 2022; 71:gutjnl-2022-327745. [PMID: 35944925 DOI: 10.1136/gutjnl-2022-327745] [Citation(s) in RCA: 356] [Impact Index Per Article: 178.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/21/2022] [Indexed: 01/06/2023]
Abstract
Helicobacter pyloriInfection is formally recognised as an infectious disease, an entity that is now included in the International Classification of Diseases 11th Revision. This in principle leads to the recommendation that all infected patients should receive treatment. In the context of the wide clinical spectrum associated with Helicobacter pylori gastritis, specific issues persist and require regular updates for optimised management.The identification of distinct clinical scenarios, proper testing and adoption of effective strategies for prevention of gastric cancer and other complications are addressed. H. pylori treatment is challenged by the continuously rising antibiotic resistance and demands for susceptibility testing with consideration of novel molecular technologies and careful selection of first line and rescue therapies. The role of H. pylori and antibiotic therapies and their impact on the gut microbiota are also considered.Progress made in the management of H. pylori infection is covered in the present sixth edition of the Maastricht/Florence 2021 Consensus Report, key aspects related to the clinical role of H. pylori infection were re-evaluated and updated. Forty-one experts from 29 countries representing a global community, examined the new data related to H. pylori infection in five working groups: (1) indications/associations, (2) diagnosis, (3) treatment, (4) prevention/gastric cancer and (5) H. pylori and the gut microbiota. The results of the individual working groups were presented for a final consensus voting that included all participants. Recommendations are provided on the basis of the best available evidence and relevance to the management of H. pylori infection in various clinical fields.
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Affiliation(s)
- Peter Malfertheiner
- Medical Department 2, LMU, Munchen, Germany
- Department of Radiology, LMU, Munchen, Germany
| | - Francis Megraud
- INSERM U853 UMR BaRITOn, University of Bordeaux, Bordeaux, France
| | - Theodore Rokkas
- Gastroenterology, Henry Dunant Hospital Center, Athens, Greece
- Medical School, European University, Nicosia, Cyprus
| | - Javier P Gisbert
- Gastroenterology, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Jyh-Ming Liou
- Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Christian Schulz
- Medical Department 2, LMU, Munchen, Germany
- Partner Site Munich, DZIF, Braunschweig, Germany
| | - Antonio Gasbarrini
- Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Università Cattolica del Sacro Cuore Facoltà di Medicina e Chirurgia, Roma, Italy
| | - Richard H Hunt
- Medicine, McMaster University, Hamilton, Ontario, Canada
- Farncombe Family Digestive Health Research Institute, Hamilton, Ontario, Canada
| | - Marcis Leja
- Faculty of Medicine, University of Latvia, Riga, Latvia
- Institute of Clinical and Preventive Medicine, University of Latvia, Riga, Latvia
| | - Colm O'Morain
- Faculty of Health Sciences, Trinity College Dublin, Dublin, Ireland
| | - Massimo Rugge
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padova, Padova, Italy
- Veneto Tumor Registry (RTV), Padova, Italy
| | - Sebastian Suerbaum
- Partner Site Munich, DZIF, Braunschweig, Germany
- Max von Pettenkofer Institute, LMU, Munchen, Germany
| | - Herbert Tilg
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology & Metabolism, Medizinische Universitat Innsbruck, Innsbruck, Austria
| | - Kentaro Sugano
- Department of Medicine, Jichi Medical School, Tochigi, Japan
| | - Emad M El-Omar
- Department of Medicine, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
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