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Role of Gastric Microorganisms Other than Helicobacter pylori in the Development and Treatment of Gastric Diseases. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6263423. [PMID: 35321071 PMCID: PMC8938066 DOI: 10.1155/2022/6263423] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/02/2021] [Accepted: 02/18/2022] [Indexed: 12/15/2022]
Abstract
The microenvironment in the stomach is different from other digestive tracts, mainly because of the secretion of gastric acid and digestive enzymes, bile reflux, special mucus barrier, gastric peristalsis, and so on, which all contribute to the formation of antibacterial environment. Microecological disorders can lead to gastric immune disorders or lead to the decrease of dominant bacteria and the increase of the abundance and virulence of pathogenic microorganisms and then promote the occurrence of diseases. The body performs its immune function through innate and adaptive immunity and maintains microbial balance through the mechanism of immune homeostasis. Microecological imbalance can lead to the invasion of pathogenic microorganisms and damage mucosal barrier and immune system. The coexistence of gastric microorganisms (including viruses and fungi) may play a synergistic or antagonistic role in the pathogenesis of gastric diseases. Probiotics have the ability to compete with intestinal pathogens, increase the secretion of immunoglobulin A (IgA), stimulate the production of mucin, bacteriocin, and lactic acid, regulate the expression and secretion of cytokines, and regulate the growth of microbiota, which all have beneficial effects on the host microbial environment. At present, most studies focused on Helicobacter pylori, ignoring other stomach microbes and the overall stomach microecology. So, in this article, we reviewed advances in human gastric microecology, the relationship between gastric microecology and immunity or gastric diseases, and the treatment of probiotics in gastric diseases, in order to explore new area for further study of gastric microorganisms and treatment of gastric diseases.
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Frequency and Molecular Characterization of Staphylococcus aureus from Placenta of Mothers with Term and Preterm Deliveries. Life (Basel) 2022; 12:life12020257. [PMID: 35207545 PMCID: PMC8879889 DOI: 10.3390/life12020257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 02/04/2022] [Indexed: 01/02/2023] Open
Abstract
Globally, prematurity is the leading cause of neonatal mortality (babies in the first four weeks of life) and now the second leading cause of mortality after pneumonia in children under age five. The neonatal gut microbial colonization is crucial in the human life cycle. Placental microbiota transmits from the gut microbiota plays a significant role in association with kinship. Simultaneously, this transition is being made from mother to infant. This comparative study explored the diversity of microbiota associated with term and preterm neonates by evaluating the placental samples. The study found that 16/68 (23.5%) full-term placental samples were positive for S. aureus; on the other hand, 4/16 (25%) preterm placental samples confirmed culture growth for S. aureus. Antimicrobial susceptibility patterns showed that Staphylococcusaureus (S. aureus) isolates from both types of samples were resistant to Ofloxacin, Trimethoprim-sulfamethoxazole, Oxacillin, and Cefoxitin. However, Methicillin-Resistant Staphylococcus aureus (MRSA) detection was 43.75% in full-term and 75% in preterm placental samples. Moreover, two isolates were positive for both mecA and PVL virulent genes, and the rest were positive only for the mecA gene. Interestingly few isolates lacked both characteristic MRSA genes, mecA and PVL. Notably, resistances were more inclined towards preterm samples for antimicrobial susceptibility and MRSA screening. It may be concluded that there is a significant presence of S. aureus in the placenta of mothers with term and preterm deliveries which might be responsible for preterm deliveries. Therefore, judicious use of antibiotics during pregnancies may help prevent preterm births.
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Chen CC, Liou JM, Lee YC, Hong TC, El-Omar EM, Wu MS. The interplay between Helicobacter pylori and gastrointestinal microbiota. Gut Microbes 2022; 13:1-22. [PMID: 33938378 PMCID: PMC8096336 DOI: 10.1080/19490976.2021.1909459] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The complex population of microbes in the human gastrointestinal (GI) tract interacts with itself and with the host, exerting a deep influence on health and disease development. The development of modern sequencing technology has enabled us to gain insight into GI microbes. Helicobacter pylori colonization significantly affects the gastric microenvironment, which in turn affects gastric microbiota and may be correlated with colonic microbiota changes. Crosstalk between H. pylori and GI commensal flora may play a role in H. pylori-related carcinogenicity and extragastric manifestations. We review current knowledge on how H. pylori shapes GI microbiota with a specific focus on its impact on the stomach and colon. We also review current evidence on colonic microbiota changes attributed to eradication therapy based on the clinical studies performed to date.
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Affiliation(s)
- Chieh-Chang Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan,Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan,Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan,CONTACT Ming-Shiang Wu
| | - Jyh-Ming Liou
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan,Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan,Department of Medicine, National Taiwan University Cancer Center, National Taiwan University College of Medicine, Taipei, Taiwan,Jyh-Ming Liou Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Chia Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan,Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan,Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Tzu-Chan Hong
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Emad M El-Omar
- Microbiome Research Centre, St George & Sutherland Clinical School, University of New South Wales, Sydney, NSW, Australia,M El-Omar St George Hospital, Short St, Kogarah NSW 2217, UNSW SYDNEY, NSW 2052 Australia; Microbiome Research Centre, St George & Sutherland Clinical School, University of New South Wales, Sydney, Australia
| | - Ming-Shiang Wu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan,Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan,CONTACT Ming-Shiang Wu
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Interdisciplinary insights into the link between gut microbiome and gastric carcinogenesis-what is currently known? Gastric Cancer 2022; 25:1-10. [PMID: 34741681 PMCID: PMC8732854 DOI: 10.1007/s10120-021-01260-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/20/2021] [Indexed: 02/07/2023]
Abstract
Currently, gastric cancer is one of the leading death-related cancer globally. The etiopathogenesis of gastric cancer is multifactorial and includes among others dysbiotic alterations of gastric microbiota. Molecular techniques revealed that stomach is not a sterile organ and it is resides with ecosystem of microbes. Due to the fact that the role of Helicobacter pylori infection in development of gastric cancer is established and well-studied, this paper is mainly focused on the role of other bacterial as well as viral and fungal gut microbiota imbalance in gastric carcinogenesis. Notably, not only the composition of gastric microbiota may play an important role in development of gastric cancer, but also its activity. Microbial metabolites, such as short-chain fatty acids, polyamines, N-nitroso compounds, and lactate, may significantly affect gastric carcinogenesis. Therefore, this paper discussed aforementioned aspects with the interdisciplinary insights (regarding also immunological point of view) into the association between gut microbiome and gastric carcinogenesis based on up-to-date studies.
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55
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Howden CW, Loomba R. A Message from the Editors. Aliment Pharmacol Ther 2022; 55:4-5. [PMID: 34907571 DOI: 10.1111/apt.16701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Colin W Howden
- Division of Gastroenterology and Hepatology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Rohit Loomba
- Division of Gastroenterology, University of California, San Diego, La Jolla, California, USA
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The composition and functional profile of the microbial communities in human gastric cancer tissues and adjacent normal tissues. Acta Biochim Biophys Sin (Shanghai) 2021; 54:47-54. [PMID: 35130625 PMCID: PMC9909298 DOI: 10.3724/abbs.2021010] [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] [Indexed: 11/25/2022] Open
Abstract
(.) is known to be a major risk factor for the development of gastric cancer. In recent years, increasing attention is being paid to the role of non-. (NHPHs) in this disease and the role of microorganisms in local tumor microenvironment. In this study, we aimed to compare the microbial community composition and the predicted functional profile in paired cancer and adjacent normal tissues of gastric cancer patients. Cancer tissues and adjacent normal tissues were collected from 10 patients with gastric cancer under endoscopy, and genomic DNA was extracted. The V3-V4 region of the 16S rRNA gene was amplified by PCR and paired-end sequencing was performed on the Illumina MiSeq System. The data was analyzed using QIIME 2 software. The results showed that microbial richness and diversity as well as genetic diversity are significantly lower in cancer tissues compared with adjacent normal tissues. At the phylum level, the dominant taxa are , , , and in both groups. At the genus level, some taxa, such as and, are significantly enriched in cancer tissues, while other taxa, such as , are enriched in adjacent normal tissues. Moreover, those taxa enriched in cancer tissues are associated with the synthesis and degradation of ketone bodies. In conclusion, there is a significant difference in the composition of the mucosa-related microbial communities between cancer tissues and adjacent normal tissues in patients with gastric cancer.
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Liu D, Chen S, Gou Y, Yu W, Zhou H, Zhang R, Wang J, Ye F, Liu Y, Sun B, Zhang K. Gastrointestinal Microbiota Changes in Patients With Gastric Precancerous Lesions. Front Cell Infect Microbiol 2021; 11:749207. [PMID: 34956928 PMCID: PMC8695999 DOI: 10.3389/fcimb.2021.749207] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/16/2021] [Indexed: 12/24/2022] Open
Abstract
Background Gastric microbiota may be involved in gastric cancer. The relationship between gastrointestinal microbes and the risk of gastric cancer is unclear. This study aimed to explore the gastric and intestinal bacteria associated with gastritis and gastric precancerous lesions. We conducted a case-control study by performing 16S rRNA gene analysis of gastric biopsies, juices, and stool samples from 148 cases with gastritis or gastric precancerous lesions from Anhui and neighboring provinces, China. And we validated our findings in public datasets. Results Analysis of microbial sequences revealed decreased bacterial alpha diversity in gastric bacteria during the progression of gastritis. Helicobacter pylori was the main contributor to the decreased microbial composition and diversity in the gastric mucosa and had little influence on the microbiota of gastric juice and feces. The gastric mucosal genera Gemella, Veillonella, Streptococcus, Actinobacillus, and Hemophilus had the higher degree of centrality across the progression of gastric precancerous lesions. And Acinetobacter may contribute to the occurrence of intraepithelial neoplasia. In addition, the microbial model of H. pylori-positive gastric biopsies and feces showed value in the prediction of gastric precancerous lesions. Conclusions This study identified associations between gastric precancerous lesions and gastric microbiota, as well as the changes in intestinal microbiota, and explored their values in the prediction of gastric precancerous lesions.
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Affiliation(s)
- Dehua Liu
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Si Chen
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yawen Gou
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wenyong Yu
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hangcheng Zhou
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rutong Zhang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jinghao Wang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Fei Ye
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yingling Liu
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Baolin Sun
- School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Kaiguang Zhang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Yang Y, Ji R, Zhao X, Cao X, Wang Q, Jiang Q, Zhang Y, Zheng W, Wu X, Yang A. Alterations in Gastric Mucosal Microbiota in Gastric Carcinogenesis: A Systematic Review and Meta-Analysis. Front Med (Lausanne) 2021; 8:754959. [PMID: 34926502 PMCID: PMC8678046 DOI: 10.3389/fmed.2021.754959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/15/2021] [Indexed: 12/27/2022] Open
Abstract
Background: The gastric microbiota profile alters during gastric carcinogenesis. We aimed to identify the alterations in the alpha diversity and relative abundance of bacterial phyla and genera of gastric microbiota in the development of gastric cancer (GC). Methods: The systematic review was performed based on a published protocol with the registration number CRD42020206973. We searched through PubMed, EMBASE and Cochrane databases, as well as conference proceedings and references of review articles (May 2021) for observational studies reporting either the relative abundance of bacterial phyla or genera, or alpha diversity indexes in both GC and non-cancer groups. Selection of studies and data extraction were performed independently by two researchers, with disagreements resolved through discussion. Risk of bias was assessed using the self-modified Newcastle-Ottawa Scale. Results of random-effects meta-analyses were presented as mean differences (MD). Results: Our systematic review included 751 GC patients and 792 non-cancer patients from 14 case-control studies. Gastric cancer group had fewer operational taxonomic units (OTUs) (MD = -68.52, 95%CI: -126.65 to -10.39) and a lower Simpson index (MD = -0.13, 95%CI: -0.20 to -0.07) compared with non-cancer group. At the phylum level, gastric cancer group had a higher abundance of Firmicutes (MD = 7.11, 95%CI: 1.76 to 12.46). At the genus level, Streptococcus (MD = 3.03, 95%CI: 0.07 to 6.00) and Lactobacillus (MD = 5.15, 95%CI: 1.27 to 9.04) were found to be enriched in GCgroup. The relative abundance of the rest bacterial phyla or genera analyzed in our study did not significantly differ between two groups. Subgroup analyses indicated that the source of samples was the major source of interstudy heterogeneity. Conclusion: This systematic review suggested that gastric microbiota dysbiosis occurred in gastric carcinogenesis, with alpha diversity declined and microbiota composition altered.
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Affiliation(s)
- Yingyun Yang
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Ruoyu Ji
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Xinyu Zhao
- National Clinical Research Center for Digestive Diseases, Department of Clinical Epidemiology and Evidence-based Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xinyuan Cao
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Qiang Wang
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Qingwei Jiang
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Yizhen Zhang
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Weiyang Zheng
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Xi Wu
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
| | - Aiming Yang
- Department of Gastroenterology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Beijing, China
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Avalueva EB, Serkova MY, Sitkin SI. <i>Helicobacter pylori</i>. The survival strategy of a commensal symbiont in the <i>Homo sapiens</i> population. EXPERIMENTAL AND CLINICAL GASTROENTEROLOGY 2021:102-108. [DOI: 10.31146/1682-8658-ecg-193-9-102-108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Несмотря на крайне высокую степень инфицированности Helicobacter pylori в популяции Homo sapiens, подавляющее большинство инфицированных являются бессимптомными носителями. Широкое распространение инфекции H. pylori среди лиц без признаков патологии и низкая заболеваемость при хронической колонизации слизистой оболочки желудка указывают на то, что H. pylori с большей вероятностью является условно-патогенным микроорганизмом или патобионтом. Популяционная ликвидация инфекции H. pylori существенно снизила заболеваемость инфекцией H. pylori, однако появление устойчивости к противомикробным препаратам привело к их неэффективности.
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Affiliation(s)
- E. B. Avalueva
- North-Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation
| | - M. Yu. Serkova
- North-Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation
| | - S. I. Sitkin
- North-Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation; Almazov National Medical Research Centre
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Suzuki S, Gotoda T, Takano C, Horii T, Sugita T, Ogura K, Ichijima R, Kusano C, Ikehara H. Long term impact of vonoprazan-based Helicobacter pylori treatment on gut microbiota and its relation to post-treatment body weight changes. Helicobacter 2021; 26:e12851. [PMID: 34486195 DOI: 10.1111/hel.12851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Vonoprazan-based Helicobacter pylori (H. pylori) treatment is highly effective in eradicating the target bacteria; however, its post-1-year impact on gut microbiota is unknown. This study evaluated the impact of vonoprazan-based H. pylori therapy on gut microbiota 1-year post-therapy and investigated the relationship between body weight changes and post-therapy gut microbiota perturbations. MATERIALS AND METHODS Between March and May 2019, 43 patients with H. pylori infections received either vonoprazan/amoxicillin (VA) or vonoprazan/amoxicillin/clarithromycin (VAC) therapy. Fecal samples were collected prior to treatment and 1 year after treatment. The alpha and beta diversities and the bacterial taxa composition ratios were determined using polymerase chain reaction amplification of the V3-V4 region of the 16S ribosomal RNA gene. The correlation between body weight changes and relative abundances of genera post-therapy was also analyzed. RESULTS Among the 43 patients, 18 received VA therapy and 21 received VAC therapy. One year after treatment, the alpha diversity was significantly higher in both the treatment groups (p < .001, using observed operational taxonomic units and Chao1 index), and beta diversity was significantly different in both the groups (p = .001, using unweighted UniFrac distance) compared with baseline findings. Significant positive correlations were found between body weight changes and the relative abundances of Coprococcus spp. (p = .037) and Odoribacter spp. (p = .022) post-therapy. CONCLUSION Vonoprazan-based H. pylori therapies are associated with long-term impacts on gut microbiota, including effects on bacterial species richness, and potentially affect metabolism by altering the microbiota. TRIAL REGISTRATION NUMBER UMIN000040025.
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Affiliation(s)
- Sho Suzuki
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan.,Department of Gastroenterology, Yuri Kumiai General Hospital, Akita, Japan
| | - Takuji Gotoda
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Chika Takano
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan.,Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Toshiki Horii
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tomomi Sugita
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Kanako Ogura
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Ryoji Ichijima
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Chika Kusano
- Department of Gastroenterology, Internal Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hisatomo Ikehara
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
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61
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Yuan Z, Xiao S, Li S, Suo B, Wang Y, Meng L, Liu Z, Yin Z, Xue Y, Zhou L. The impact of Helicobacter pylori infection, eradication therapy, and probiotics intervention on gastric microbiota in young adults. Helicobacter 2021; 26:e12848. [PMID: 34448282 DOI: 10.1111/hel.12848] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/31/2021] [Accepted: 08/18/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND The impact of probiotics on non-Helicobacter pylori gastric microbiota and its role in microbial restoration after eradication were relatively unknown. We aimed to explore the effect of H. pylori eradication and probiotic intervention on gastric microbiota in young adults. METHODS Fifty-six H. pylori-negative and 95 H. pylori-positive subjects aged 19-30 were included in this study. H. pylori-infected individuals were randomly assigned to quadruple therapy, probiotics supplemented quadruple therapy, or probiotics monotherapy group. Gastric mucosa and gastric juice samples were collected before and 2 months after treatment for 16SrRNA gene sequencing. RESULTS The gastric microbial community structure and composition differed from H. pylori-negative subjects 2 months after successful H. pylori eradication. The α diversity of gastric mucosal microbiota significantly increased and was higher than H. pylori-negative subjects, while the α diversity of gastric juice microbiota decreased and was lower than the H. pylori-negative. After probiotics supplemented eradication treatment, Bifidobacterium was enriched in gastric mucosa, Lactobacillus was enriched in gastric juice, potentially pathogenic bacteria such as Fusobacterium and Campylobacter decreased, and the microbial diversity was closer to that of H. pylori-negative subjects compared to quadruple therapy group. Probiotics monotherapy significantly altered the diversity, community structure, and composition of gastric microbiota but showed no advantage in H. pylori inhibition and upregulating beneficial bacteria such as Bifidobacterium and Lactobacillus and related metabolism pathways. Certain potentially pathogenic bacteria such as Fusobacterium increased after probiotic monotherapy. CONCLUSION H. pylori eradication significantly disrupted gastric microbiota in young adults and could not be restored in a short time. Probiotics supplementation partially helped restore the gastric dysbiosis caused by eradication therapy, but it might be unnecessary for H. pylori-infected young adults to take probiotics alone.
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Affiliation(s)
- Ziying Yuan
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Shiyu Xiao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Sizhu Li
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Baojun Suo
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Ye Wang
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Lingmei Meng
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Zuojing Liu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Zhihao Yin
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Yan Xue
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
| | - Liya Zhou
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Peking University Third Hospital, Beijing, China
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Conti L, Borro M, Milani C, Simmaco M, Esposito G, Canali G, Pilozzi E, Ventura M, Annibale B, Lahner E. Gastric microbiota composition in patients with corpus atrophic gastritis. Dig Liver Dis 2021; 53:1580-1587. [PMID: 34116969 DOI: 10.1016/j.dld.2021.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND In corpus atrophic gastritis (CAG), hypochlorhydria makes plausible the overgrowth of intragastric bacteria, whose role in gastric carcinogenesis is under debate. AIMS To characterize the antrum/corpus composition of the gastric bacterial microbiota in CAG patients compared to controls without CAG. METHODS A cross-sectional monocentric study on consecutive patients with known histological diagnosis of CAG undergoing gastroscopy for gastric cancer surveillance and patients without CAG undergoing gastroscopy for dyspepsia or anemia (108 biopsies from 55 patients, median age 61.5). Genomic DNA from one antral and one corpus biopsy from each case (n = 23) and control (n = 32) was extracted. Gastric microbiota was assessed by sequencing hypervariable regions of the 16SrRNA gene. RESULTS Bacterial abundance and diversity were significantly lower in CAG cases than in controls (p < 0.001). Firmicutes were more frequent in cases, Bacteroidetes and Fusobacteria in controls (p < 0.0001). Streptococcaceae were more abundant in cases (p < 0.0001), Prevotellaceae in controls (p < 0.0001). The genus Streptococcus was positively correlated with severe OLGA/OLGIM stages linked to a higher risk of gastric cancer. CONCLUSION Gastric bacterial microbiota in CAG showed a reduced abundance and complexity but was characterized by higher colonization of Firmicutes, in particular Streptococcus, increased in subjects with severe atrophy/metaplasia stages at higher risk of gastric cancer.
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Affiliation(s)
- Laura Conti
- Medical-Surgical Department of Clinical Sciences and Translational Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy
| | - Marina Borro
- Department of Neurosciences, Mental Health, and Sensory Organs, "Sapienza" University of Rome, via di Grottarossa 1035-1039, 00189 Rome, Italy
| | - Christian Milani
- Laboratory of Probiogenomics, Microbiome Research Hub, Dept. Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Maurizio Simmaco
- Department of Neurosciences, Mental Health, and Sensory Organs, "Sapienza" University of Rome, via di Grottarossa 1035-1039, 00189 Rome, Italy
| | - Gianluca Esposito
- Medical-Surgical Department of Clinical Sciences and Translational Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy
| | - Giulia Canali
- Medical-Surgical Department of Clinical Sciences and Translational Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy
| | - Emanuela Pilozzi
- Department of Clinical and Molecular Medicine, University Sapienza, Rome, Italy
| | - Marco Ventura
- Laboratory of Probiogenomics, Microbiome Research Hub, Dept. Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Bruno Annibale
- Medical-Surgical Department of Clinical Sciences and Translational Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy
| | - Edith Lahner
- Medical-Surgical Department of Clinical Sciences and Translational Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy.
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Abstract
Little is known about the influence of gastric microbiota on host metabolism, even though the stomach plays an important role in the production of hormones involved in body weight regulation and glucose homeostasis. Proton pump inhibitors (PPIs) and Helicobacter pylori alter gut microbiota, but their impact on gastric microbiota in patients with obesity and the influence of these factors on the metabolic response to bariatric surgery is not fully understood. Forty-one subjects with morbid obesity who underwent sleeve gastrectomy were included in this study. The H. pylori group was established by the detection of H. pylori using a sequencing-based method (n = 16). Individuals in whom H. pylori was not detected were classified according to PPI treatment. Gastric biopsy specimens were obtained during surgery and were analyzed by a high-throughput-sequencing method. Patients were evaluated at baseline and 3, 6, and 12 months after surgery. β-Diversity measures were able to cluster patients according to their gastric mucosa-associated microbiota composition. H. pylori and PPI treatment are presented as two important factors for gastric mucosa-associated microbiota. H. pylori reduced diversity, while PPIs altered β-diversity. Both factors induced changes in the gastric mucosa-associated microbiota composition and its predicted functions. PPI users showed lower percentages of change in the body mass index (BMI) in the short term after surgery, while the H. pylori group showed higher glucose levels and lower percentages of reduction in body weight/BMI 1 year after surgery. PPIs and H. pylori colonization could modify the gastric mucosa-associated microbiota, altering its diversity, composition, and predicted functionality. These factors may have a role in the metabolic evolution of patients undergoing bariatric surgery. IMPORTANCE The gut microbiota has been shown to have an impact on host metabolism. In the stomach, factors like proton pump inhibitor treatment and Helicobacter pylori haven been suggested to alter gut microbiota; however, the influence of these factors on the metabolic response to bariatric surgery has not been fully studied. In this study, we highlight the impact of these factors on the gastric microbiota composition. Moreover, proton pump inhibitor treatment and the presence of Helicobacter pylori could have an influence on bariatric surgery outcomes, mainly on body weight loss and glucose homeostasis. Deciphering the relationship between gastric hormones and gastric microbiota and their contributions to bariatric surgery outcomes paves the way to develop gut manipulation strategies to improve the metabolic success of bariatric surgery.
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Wen J, Lau HCH, Peppelenbosch M, Yu J. Gastric Microbiota beyond H. pylori: An Emerging Critical Character in Gastric Carcinogenesis. Biomedicines 2021; 9:1680. [PMID: 34829909 PMCID: PMC8615612 DOI: 10.3390/biomedicines9111680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 12/27/2022] Open
Abstract
Gastric cancer (GC) is one of the global leading causes of cancer death. The association between Helicobacter pylori, which is a predominant risk factor for GC, with GC development has been well-studied. Recently, accumulating evidence has demonstrated the presence of a large population of microorganisms other than H. pylori in the human stomach. Existing sequencing studies have revealed microbial compositional and functional alterations in patients with GC and highlighted a progressive shift in the gastric microbiota in gastric carcinogenesis with marked enrichments of oral or intestinal commensals. Moreover, using a combination of gastric bacterial signatures, GC patients could be significantly distinguished from patients with gastritis. These findings, therefore, emphasize the importance of a collective microbial community in gastric carcinogenesis. Here, we provide an overview of non-H. pylori gastric microbes in gastric carcinogenesis. The molecular mechanisms of gastric microbes-related carcinogenesis and potential clinical applications of gastric microbiota as biomarkers of GC are also explored.
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Affiliation(s)
- Jun Wen
- State Key Laboratory of Digestive Disease, Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; (J.W.); (H.C.-H.L.)
| | - Harry Cheuk-Hay Lau
- State Key Laboratory of Digestive Disease, Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; (J.W.); (H.C.-H.L.)
| | - Maikel Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center Rotterdam, Postbus 2040, 3000 CA Rotterdam, The Netherlands;
| | - Jun Yu
- State Key Laboratory of Digestive Disease, Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; (J.W.); (H.C.-H.L.)
- Institute of Digestive Disease, Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
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Li F, Zhu H, Tao K, Xia Y, Liu M, Wang Y, Sun Y, Cao T, Chai J, Ni F, Shi B, Xu H. Mucosal microbial microenvironment in early gastric neoplasia and non-neoplastic gastric disease. J Gastroenterol Hepatol 2021; 36:3092-3101. [PMID: 34089623 DOI: 10.1111/jgh.15565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND AIM The biological characterization of microbial environment in early gastric cancer (EGC), other than Helicobacter pylori, is limited. This study aimed to explore the microbial microenvironment in chronic gastritis (CG), fundic gland polyps (FGPs), low-grade intraepithelial neoplasia (LGIN), and EGC. METHODS 16S-rRNA gene sequencing and bioinformatic analysis were performed on 63 individuals with 252 mucosal biopsies or endoscopic submucosal dissection margin samples from endoscopy. RESULTS The microbiota in gastric LGIN functions analogously to EGC in terms of functional prediction. Neoplastic lesions showed a significant difference to CG or FGPs in beta diversity of the microbiota. Bacteria genera including Paracoccus, Blautia, Barnesiella, Lactobacillus, Thauera, Collinsella were significantly enriched in gastric neoplastic mucosa (LGIN and EGC) compared with non-neoplastic tissues (CG and FGPs). While Pseudomonas and Kingella were depleted in neoplastic tissues. FGPs showed a distinctive microbial network system that negatively interacted with Helicobacter. CONCLUSIONS In terms of the mucosal microbial microenvironment, gastric LGIN and EGC showed no significant difference as early neoplastic lesions. We observed a coordinated microbial microenvironment that correlated negatively with Helicobacter.
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Affiliation(s)
- Fudong Li
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - He Zhu
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Ke Tao
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Yan Xia
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Mingqing Liu
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Yu Wang
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Yu Sun
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Tingting Cao
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Jiannan Chai
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Fengming Ni
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Bing Shi
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
| | - Hong Xu
- Department of Gastroenterology and Endoscopy Center, The First Hospital of Jilin University, Changchun, China
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Amatya SB, Salmi S, Kainulainen V, Karihtala P, Reunanen J. Bacterial Extracellular Vesicles in Gastrointestinal Tract Cancer: An Unexplored Territory. Cancers (Basel) 2021; 13:5450. [PMID: 34771614 PMCID: PMC8582403 DOI: 10.3390/cancers13215450] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 10/19/2021] [Indexed: 12/17/2022] Open
Abstract
Bacterial extracellular vesicles are membrane-enclosed, lipid bi-layer nanostructures that carry different classes of biomolecules, such as nucleic acids, lipids, proteins, and diverse types of small molecular metabolites, as their cargo. Almost all of the bacteria in the gut secrete extracellular vesicles to assist them in competition, survival, material exchange, host immune modulation, infection, and invasion. The role of gut microbiota in the development, progression, and pathogenesis of gastrointestinal tract (GIT) cancer has been well documented. However, the possible involvement of bacterial extracellular vesicles (bEVs) in GIT cancer pathophysiology has not been given due attention. Studies have illustrated the ability of bEVs to cross physiological barriers, selectively accumulate near tumor cells, and possibly alter the tumor microenvironment (TME). A systematic search of original published works related to bacterial extracellular vesicles on gastrointestinal cancer was performed for this review. The current systemic review outlines the possible impact of gut microbiota derived bEVs in GIT cancer in light of present-day understanding. The necessity of using advanced sequencing technologies, such as genetic, proteomic, and metabolomic investigation methodologies, to facilitate an understanding of the interrelationship between cancer-associated bacterial vesicles and gastrointestinal cancer is also emphasized. We further discuss the clinical and pharmaceutical potential of bEVs, along with future efforts needed to understand the mechanism of interaction of bEVs in GIT cancer pathogenesis.
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Affiliation(s)
- Sajeen Bahadur Amatya
- Biocenter Oulu & Cancer and Translational Medicine Research Unit, University of Oulu, 90014 Oulu, Finland; (S.B.A.); (S.S.)
| | - Sonja Salmi
- Biocenter Oulu & Cancer and Translational Medicine Research Unit, University of Oulu, 90014 Oulu, Finland; (S.B.A.); (S.S.)
| | - Veera Kainulainen
- Human Microbiome Research Program Unit, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland;
| | - Peeter Karihtala
- Helsinki University Hospital Comprehensive Cancer Center, University of Helsinki, 00290 Helsinki, Finland;
| | - Justus Reunanen
- Biocenter Oulu & Cancer and Translational Medicine Research Unit, University of Oulu, 90014 Oulu, Finland; (S.B.A.); (S.S.)
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Varkalaite G, Forster M, Franke A, Kupcinskas J, Skieceviciene J. Liquid Biopsy in Gastric Cancer: Analysis of Somatic Cancer Tissue Mutations in Plasma Cell-Free DNA for Predicting Disease State and Patient Survival. Clin Transl Gastroenterol 2021; 12:e00403. [PMID: 34644276 PMCID: PMC8462609 DOI: 10.14309/ctg.0000000000000403] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/05/2021] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION Gastric cancer (GC) diagnosis in late stages and high mortality rates are the main issues that require new noninvasive molecular tools. We aimed to assess somatic mutational profiles in GC tissue and plasma cell-free DNA (cfDNA), evaluate their concordance rate, and analyze the role of multilayer molecular profiling to predict disease state and prognosis. METHODS Treatment-naive GC patient group (n = 29) was selected. Whole exome sequencing (WES) of GC tissue was performed, and a unique 38-gene panel for deep targeted sequencing of plasma cfDNA was developed. Oncoproteins were measured by enzyme-linked immunosorbent assay, and other variables such as tumor mutational burden and microsatellite instability were evaluated using WES data. RESULTS The yield of cfDNA was increased 43.6-fold; the integrity of fragments was decreased in GC compared with controls. WES analysis of cancerous tissue and plasma cfDNA (targeted sequencing) mutational profiles revealed 47.8% concordance. The increased quantity of GC tissue-derived alterations detected in cfDNA was associated with worse patients' survival. Analysis of importance of multilayer variables and receiver operating characteristic curve showed that combination of 2 analytes: (i) quantity of tissue matching alterations and (ii) presence of any somatic alteration in plasma cfDNA resulted in area under curve 0.744 when discriminating patients with or without distant metastasis. Furthermore, cfDNA sequence alterations derived from tumor tissue were detected in patients who had even relatively small GC tumors (T1-T2). DISCUSSION Our results indicate that quantitative and qualitative cfDNA mutational profile analysis is a promising tool for evaluating GC disease status or poorer prognosis.
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Affiliation(s)
- Greta Varkalaite
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania;
| | - Michael Forster
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany;
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany;
| | - Juozas Kupcinskas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania;
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania;
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Gomez-Ramirez U, Valencia-Mayoral P, Mendoza-Elizalde S, Murillo-Eliosa JR, Solórzano Santos F, Contreras-Rodríguez A, Zúñiga G, Aguilar-Rodea P, Jiménez-Rojas VL, Vigueras Galindo JC, Salazar-García M, Velázquez-Guadarrama N. Role of Helicobacter pylori and Other Environmental Factors in the Development of Gastric Dysbiosis. Pathogens 2021; 10:1203. [PMID: 34578235 PMCID: PMC8467233 DOI: 10.3390/pathogens10091203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/26/2021] [Accepted: 09/08/2021] [Indexed: 11/17/2022] Open
Abstract
Microbiomes are defined as complex microbial communities, which are mainly composed of bacteria, fungi, and viruses residing in diverse regions of the human body. The human stomach consists of a unique and heterogeneous habitat of microbial communities owing to its anatomical and functional characteristics, that allow the optimal growth of characteristic bacteria in this environment. Gastric dysbiosis, which is defined as compositional and functional alterations of the gastric microbiota, can be induced by multiple environmental factors, such as age, diet, multiple antibiotic therapies, proton pump inhibitor abuse, H. pylori status, among others. Although H. pylori colonization has been reported across the world, chronic H. pylori infection may lead to serious consequences; therefore, the infection must be treated. Multiple antibiotic therapy improvements are not always successful because of the lack of adherence to the prescribed antibiotic treatment. However, the abuse of eradication treatments can generate gastric dysbiotic states. Dysbiosis of the gastric microenvironment induces microbial resilience, due to the loss of relevant commensal bacteria and simultaneous colonization by other pathobiont bacteria, which can generate metabolic and physiological changes or even initiate and develop other gastric disorders by non-H. pylori bacteria. This systematic review opens a discussion on the effects of multiple environmental factors on gastric microbial communities.
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Affiliation(s)
- Uriel Gomez-Ramirez
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
- Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Pedro Valencia-Mayoral
- Departamento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (P.V.-M.); (J.R.M.-E.)
| | - Sandra Mendoza-Elizalde
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
| | - Juan Rafael Murillo-Eliosa
- Departamento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (P.V.-M.); (J.R.M.-E.)
| | - Fortino Solórzano Santos
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
| | - Araceli Contreras-Rodríguez
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Gerardo Zúñiga
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Pamela Aguilar-Rodea
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
| | - Verónica Leticia Jiménez-Rojas
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
| | - Juan Carlos Vigueras Galindo
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
| | - Marcela Salazar-García
- Laboratorio de Investigación en Biología del Desarrollo y Teratogénesis Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico;
| | - Norma Velázquez-Guadarrama
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (S.M.-E.); (F.S.S.); (P.A.-R.); (V.L.J.-R.); (J.C.V.G.)
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Smet A, Kupcinskas J, Link A, Hold GL, Bornschein J. The Role of Microbiota in Gastrointestinal Cancer and Cancer Treatment: Chance or Curse? Cell Mol Gastroenterol Hepatol 2021; 13:857-874. [PMID: 34506954 PMCID: PMC8803618 DOI: 10.1016/j.jcmgh.2021.08.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 02/08/2023]
Abstract
The gastrointestinal (GI) tract is home to a complex and dynamic community of microorganisms, comprising bacteria, archaea, viruses, yeast, and fungi. It is widely accepted that human health is shaped by these microbes and their collective microbial genome. This so-called second genome plays an important role in normal functioning of the host, contributing to processes involved in metabolism and immune modulation. Furthermore, the gut microbiota also is capable of generating energy and nutrients (eg, short-chain fatty acids and vitamins) that are otherwise inaccessible to the host and are essential for mucosal barrier homeostasis. In recent years, numerous studies have pointed toward microbial dysbiosis as a key driver in many GI conditions, including cancers. However, comprehensive mechanistic insights on how collectively gut microbes influence carcinogenesis remain limited. In addition to their role in carcinogenesis, the gut microbiota now has been shown to play a key role in influencing clinical outcomes to cancer immunotherapy, making them valuable targets in the treatment of cancer. It also is becoming apparent that, besides the gut microbiota's impact on therapeutic outcomes, cancer treatment may in turn influence GI microbiota composition. This review provides a comprehensive overview of microbial dysbiosis in GI cancers, specifically esophageal, gastric, and colorectal cancers, potential mechanisms of microbiota in carcinogenesis, and their implications in diagnostics and cancer treatment.
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Affiliation(s)
- Annemieke Smet
- Laboratory of Experimental Medicine and Paediatrics, Faculty of Medicine and Health Sciences,Infla-Med Research Consortium of Excellence, University of Antwerp, Antwerp, Belgium
| | - Juozas Kupcinskas
- Institute for Digestive Research, Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, Germany
| | - Georgina L. Hold
- Microbiome Research Centre, St George and Sutherland Clinical School, University of New South Wales, Sydney, Australia
| | - Jan Bornschein
- Translational Gastroenterology Unit, Nuffield Department of Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom,Correspondence Address correspondence to: Jan Bornschein, MD, Translational Gastroenterology Unit, Nuffield Department of Experimental Medicine, University of Oxford, John Radcliffe Hospital, Headley Way, Oxford OX3 9DU, United Kingdom.
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Park JM, Han YM, Hahm KB. Rejuvenation of Helicobacter pylori-Associated Atrophic Gastritis Through Concerted Actions of Placenta-Derived Mesenchymal Stem Cells Prevented Gastric Cancer. Front Pharmacol 2021; 12:675443. [PMID: 34483897 PMCID: PMC8416416 DOI: 10.3389/fphar.2021.675443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/22/2021] [Indexed: 01/06/2023] Open
Abstract
Chronic Helicobacter pylori infection causes gastric cancer via the progression of precancerous chronic atrophic gastritis (CAG). Therefore, repairing gastric atrophy could be a useful strategy in preventing H. pylori-associated gastric carcinogenesis. Although eradication of the bacterial pathogen offers one solution to this association, this study was designed to evaluate an alternative approach using mesenchymal stem cells to treat CAG and prevent carcinogenesis. Here, we used human placenta-derived mesenchymal stem cells (PD-MSCs) and their conditioned medium (CM) to treat H. pylori-associated CAG in a mice/cell model to explore their therapeutic effects and elucidate their molecular mechanisms. We compared the changes in the fecal microbiomes in response to PD-MSC treatments, and chronic H. pylori-infected mice were given ten treatments with PD-MSCs before being sacrificed for end point assays at around 36 weeks of age. These animals presented with significant reductions in the mean body weights of the control group, which were eradicated following PD-MSC treatment (p < 0.01). Significant changes in various pathological parameters including inflammation, gastric atrophy, erosions/ulcers, and dysplastic changes were noted in the control group (p < 0.01), but these were all significantly reduced in the PD-MSC/CM-treated groups. Lgr5+, Ki-67, H+/K+-ATPase, and Musashi-1 expressions were all significantly increased in the treated animals, while inflammatory mediators, MMP, and apoptotic executors were significantly decreased in the PD-MSC group compared to the control group (p < 0.001). Our model showed that H. pylori-initiated, high-salt diet-promoted gastric atrophic gastritis resulted in significant changes in the fecal microbiome at the phylum/genus level and that PD-MSC/CM interventions facilitated a return to more normal microbial communities. In conclusion, administration of PD-MSCs or their conditioned medium may present a novel rejuvenating agent in preventing the progression of H. pylori-associated premalignant lesions.
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Affiliation(s)
- Jong Min Park
- College of Oriental Medicine, Daejeon University, Daejeon, Korea
| | - Young Min Han
- Western Seoul Center, Korea Basic Science Institute, Seoul, Korea
| | - Ki Baik Hahm
- Medpacto Research Institute, Medpacto, Seoul, Korea.,CHA Cancer Preventive Research Center, CHA Bio Complex, Seongnam, Korea
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Arthur RA, Dos Santos Bezerra R, Ximenez JPB, Merlin BL, de Andrade Morraye R, Neto JV, Fava NMN, Figueiredo DLA, de Biagi CAO, Montibeller MJ, Guimarães JB, Alves EG, Schreiner M, da Costa TS, da Silva CFL, Malheiros JM, da Silva LHB, Ribas GT, Achallma DO, Braga CM, Andrade KFA, do Carmo Alves Martins V, Dos Santos GVN, Granatto CF, Terin UC, Sanches IH, Ramos DE, Garay-Malpartida HM, de Souza GMP, Slavov SN, Silva WA. Microbiome and oral squamous cell carcinoma: a possible interplay on iron metabolism and its impact on tumor microenvironment. Braz J Microbiol 2021; 52:1287-1302. [PMID: 34002353 PMCID: PMC8324744 DOI: 10.1007/s42770-021-00491-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/06/2021] [Indexed: 12/23/2022] Open
Abstract
There is increasing evidence showing positive association between changes in oral microbiome and the occurrence of oral squamous cell carcinoma (OSCC). Alcohol- and nicotine-related products can induce microbial changes but are still unknown if these changes are related to cancerous lesion sites. In an attempt to understand how these changes can influence the OSCC development and maintenance, the aim of this study was to investigate the oral microbiome linked with OSCC as well as to identify functional signatures and associate them with healthy or precancerous and cancerous sites. Our group used data of oral microbiomes available in public repositories. The analysis included data of oral microbiomes from electronic cigarette users, alcohol consumers, and precancerous and OSCC samples. An R-based pipeline was used for taxonomic and functional prediction analysis. The Streptococcus spp. genus was the main class identified in the healthy group. Haemophilus spp. predominated in precancerous lesions. OSCC samples revealed a higher relative abundance compared with the other groups, represented by an increased proportion of Fusobacterium spp., Prevotella spp., Haemophilus spp., and Campylobacter spp. Venn diagram analysis showed 52 genera exclusive of OSCC samples. Both precancerous and OSCC samples seemed to present a specific associated functional pattern. They were menaquinone-dependent protoporphyrinogen oxidase pattern enhanced in the former and both 3',5'-cyclic-nucleotide phosphodiesterase (purine metabolism) and iron(III) transport system ATP-binding protein enhanced in the latter. We conclude that although precancerous and OSCC samples present some differences on microbial profile, both microbiomes act as "iron chelators-like" potentially contributing to tumor growth.
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Affiliation(s)
- Rodrigo Alex Arthur
- Preventive and Community Dentistry Department, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Rafael Dos Santos Bezerra
- Postgraduate Program in Clinical Oncology, Stem Cells and Cell Therapy, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - João Paulo Bianchi Ximenez
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Bruna Laís Merlin
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Raphael de Andrade Morraye
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Ribeirão Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, 14049-900, Brazil
| | - João Valentini Neto
- Department of Nutrition, School of Public Health, University of Sao Paulo, São Paulo, SP, 01246-904, Brazil
| | - Natália Melo Nasser Fava
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, 13563-120, Brazil
| | - David Livingstone Alves Figueiredo
- Institute for Cancer Research (IPEC), Guarapuava, PR, 85015-430, Brazil
- Department of Medicine, UNICENTRO, Guarapuava, PR, 85015-430, Brazil
| | - Carlos Alberto Oliveira de Biagi
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Maria Jara Montibeller
- Department of Food and Nutrition, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, SP, Brazil
| | - Jhefferson Barbosa Guimarães
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Ellen Gomes Alves
- Undergraduate in Biological Sciences, Institute of Health Sciences, Universidade Paulista, Ribeirão Preto, SP, Brazil
| | - Monique Schreiner
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Tiago Silva da Costa
- Department of Biological Sciences and Health, Federal University of Amapá, Macapá, AP, Brazil
| | - Charlie Felipe Liberati da Silva
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | | | - Luan Henrique Burda da Silva
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Guilherme Taborda Ribas
- Graduate Program in Bioinformatics, Professional and Technological Education Sector, Federal University of Paraná, Curitiba, PR, Brazil
| | - Daisy Obispo Achallma
- Laboratorios de Investigación y Desarrollo, FARVET, Chincha Alta, Ica, Perú & Centro de Investigación de Genética y Biología Molecular (CIGBM), Universidad de San Martín de Porres, Lima, Perú
| | - Camila Margalho Braga
- Graduate Program in Parasitic Biology in the Amazon, Pará State University, Belém, PA, Brazil
| | - Karen Flaviane Assis Andrade
- Department of Electrical and Biomedical Engineering, Institute of Technology, Federal University of Pará, Belém, PA, Brazil
| | | | | | | | | | - Igor Henrique Sanches
- Institute of Pathology Tropical and Public Health, Federal University of Goiás, Goiânia, GO, Brazil
| | - Diana Estefania Ramos
- Department of Oral; Maxillofacial Surgery, and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Gabriela Marcelino Pereira de Souza
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - Svetoslav Nanev Slavov
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil
| | - Wilson Araújo Silva
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501, Ribeirão Preto, SP, 14049-900, Brazil.
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil.
- Center for Cell-Based Therapy (CEPID/FAPESP), Molecular Genetics and Bioinformatics Laboratory - MGBL, Blood Center of Ribeirão Preto, Rua Tenente Catão Roxo, 2501 - 14051-140 Ribeirão Preto, São Paulo, Brasil.
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72
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Varricchi G, Poto R, Ianiro G, Punziano A, Marone G, Gasbarrini A, Spadaro G. Gut Microbiome and Common Variable Immunodeficiency: Few Certainties and Many Outstanding Questions. Front Immunol 2021; 12:712915. [PMID: 34408753 PMCID: PMC8366412 DOI: 10.3389/fimmu.2021.712915] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
Common variable immunodeficiency (CVID) is the most common symptomatic primary antibody immunodeficiency, characterized by reduced serum levels of IgG, IgA, and/or IgM. The vast majority of CVID patients have polygenic inheritance. Immune dysfunction in CVID can frequently involve the gastrointestinal tract and lung. Few studies have started to investigate the gut microbiota profile in CVID patients. Overall, the results suggest that in CVID patients there is a reduction of alpha and beta diversity compared to controls. In addition, these patients can exhibit increased plasma levels of lipopolysaccharide (LPS) and markers (sCD14 and sCD25) of systemic immune cell activation. CVID patients with enteropathy exhibit decreased IgA expression in duodenal tissue. Mouse models for CVID unsatisfactorily recapitulate the polygenic causes of human CVID. The molecular pathways by which gut microbiota contribute to systemic inflammation and possibly tumorigenesis in CVID patients remain poorly understood. Several fundamental questions concerning the relationships between gut microbiota and the development of chronic inflammatory conditions, autoimmune disorders or cancer in CVID patients remain unanswered. Moreover, it is unknown whether it is possible to modify the microbiome and the outcome of CVID patients through specific therapeutic interventions.
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Affiliation(s)
- Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, Naples, Italy
| | - Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Gianluca Ianiro
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Cattolica del Sacro Cuore University, Rome, Italy
| | - Alessandra Punziano
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, Naples, Italy
| | - Antonio Gasbarrini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Cattolica del Sacro Cuore University, Rome, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
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73
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Platonova EY, Shaposhnikov MV, Lee HY, Lee JH, Min KJ, Moskalev A. Black chokeberry (Aronia melanocarpa) extracts in terms of geroprotector criteria. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.06.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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74
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Wang Z, Ke M, He L, Dong Q, Liang X, Rao J, Ai J, Tian C, Han X, Zhao Y. Biocompatible and antibacterial soy protein isolate/quaternized chitosan composite sponges for acute upper gastrointestinal hemostasis. Regen Biomater 2021; 8:rbab034. [PMID: 34221450 PMCID: PMC8242228 DOI: 10.1093/rb/rbab034] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/30/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022] Open
Abstract
Innovative biomedical applications have high requirements for biomedical materials. Herein, a series of biocompatible, antibacterial and hemostatic sponges were successfully fabricated for the treatment of acute upper gastrointestinal bleeding (AUGB). Quaternized chitosan (QC) and soy protein isolate (SPI) were chemically cross-linked to obtain porous SPI/QC sponges (named SQS-n, with n = 30, 40, 50 or 60 corresponding to the weight percentage of the QC content). The chemical composition, physical properties and biological activity of SQS-n were investigated. SQS-n could support the adhesion and proliferation of L929 cells while triggering no obvious blood toxicity. Meanwhile, SQS-n exhibited good broad-spectrum antibacterial activity against both gram-positive bacteria (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli). The in vivo hemostatic effect of SQS-n was evaluated using three different bleeding models. The results revealed that SQS-50 performed best in reducing blood loss and hemostatic time. The overall hemostatic effect of SQS-50 was comparable to that of a commercial gelatin sponge. The enhanced antibacterial and hemostatic activities of SQS-n were mainly attributed to the QC component. In conclusion, this work developed a QC-functionalized hemostatic sponge that is highly desirable for innovative biomedical applications, such as AUGB.
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Affiliation(s)
- Zijian Wang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Department of Biomedical Engineering and Hubei Province Key Laboratory of Allergy and Immune Related Disease, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - MeiFang Ke
- Department of Biomedical Engineering and Hubei Province Key Laboratory of Allergy and Immune Related Disease, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Liu He
- Department of Biomedical Engineering and Hubei Province Key Laboratory of Allergy and Immune Related Disease, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Qi Dong
- Department of Biomedical Engineering and Hubei Province Key Laboratory of Allergy and Immune Related Disease, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Xiao Liang
- Department of Biomedical Engineering and Hubei Province Key Laboratory of Allergy and Immune Related Disease, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Jun Rao
- Department of Clinical Laboratory, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430061, China
| | - Junjie Ai
- Department of Clinical Laboratory, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430061, China
| | - Chuan Tian
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yanan Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Galluzzo P, Capri FC, Vecchioni L, Realmuto S, Scalisi L, Cottone S, Nuzzo D, Alduina R. Comparison of the Intestinal Microbiome of Italian Patients with Multiple Sclerosis and Their Household Relatives. Life (Basel) 2021; 11:life11070620. [PMID: 34206853 PMCID: PMC8307959 DOI: 10.3390/life11070620] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system, caused by a combination of genetic and environmental factors. In recent years, a role in MS pathogenesis was assigned to the gut microbiota. However, different signatures of gut dysbiosis have been shown to depend on environmental factors, like diet and lifestyle. In this study, we compared the gut microbiome in MS patients and their household healthy relatives sharing lifestyle and environmental factors. Faecal metagenomic DNA was extracted and the V3–V4 regions of the conserved bacterial 16S ribosomal RNA gene were amplified and sequenced. While overall bacterial communities were similar, specific families differed between healthy and MS subjects. We observed an increase in Ruminococcaceae, Christensenellaceae, Desulfovibrionaceae, Clostridiales, and Family XIII in MS patients, while Bacteroidaceae, Tannerellaceae, Veillonellaceae, and Burkholderiaceae were more abundant in healthy controls. In addition, principle coordinate analysis showed that the gut microbiome of all MS patients formed a cluster being less diverse than the household relatives and that gut microbiota of MS patients with EDSS 4.5–7 formed a distinct cluster in respect to their controls. Overall, our study is consistent with the hypothesis that MS patients have gut microbial dysbiosis and evidenced the importance of environmental factors in shaping the gut microbiome.
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Affiliation(s)
- Paola Galluzzo
- Dipartimento Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze, University of Palermo, 90133 Palermo, Italy; (P.G.); (F.C.C.); (L.V.)
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy
| | - Fanny Claire Capri
- Dipartimento Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze, University of Palermo, 90133 Palermo, Italy; (P.G.); (F.C.C.); (L.V.)
| | - Luca Vecchioni
- Dipartimento Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze, University of Palermo, 90133 Palermo, Italy; (P.G.); (F.C.C.); (L.V.)
| | - Sabrina Realmuto
- Centro Sclerosi Multipla, UOC Neurologia e Stroke Unit, AOOR Villa Sofia Cervello, 90146 Palermo, Italy;
| | - Luca Scalisi
- Centro Medico di Fisioterapia “Villa Sarina“, Via Porta Palermo 123, 91011 Alcamo, Italy;
| | - Salvatore Cottone
- U.O.C. Neurologia con Stroke Unit A.R.N.A.S. Civico, 90127 Palermo, Italy;
| | - Domenico Nuzzo
- Istituto per la Ricerca e l’Innovazione Biomedica, CNR, Via U. La Malfa 153, 90146 Palermo, Italy
- Correspondence: (D.N.); (R.A.); Tel.: +39-091-23897306 (R.A.)
| | - Rosa Alduina
- Dipartimento Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze, University of Palermo, 90133 Palermo, Italy; (P.G.); (F.C.C.); (L.V.)
- Correspondence: (D.N.); (R.A.); Tel.: +39-091-23897306 (R.A.)
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Friends or Foes-Microbial Interactions in Nature. BIOLOGY 2021; 10:biology10060496. [PMID: 34199553 PMCID: PMC8229319 DOI: 10.3390/biology10060496] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022]
Abstract
Simple Summary Microorganisms like bacteria, archaea, fungi, microalgae, and viruses mostly form complex interactive networks within the ecosystem rather than existing as single planktonic cells. Interactions among microorganisms occur between the same species, with different species, or even among entirely different genera, families, or even domains. These interactions occur after environmental sensing, followed by converting those signals to molecular and genetic information, including many mechanisms and classes of molecules. Comprehensive studies on microbial interactions disclose key strategies of microbes to colonize and establish in a variety of different environments. Knowledge of the mechanisms involved in the microbial interactions is essential to understand the ecological impact of microbes and the development of dysbioses. It might be the key to exploit strategies and specific agents against different facing challenges, such as chronic and infectious diseases, hunger crisis, pollution, and sustainability. Abstract Microorganisms are present in nearly every niche on Earth and mainly do not exist solely but form communities of single or mixed species. Within such microbial populations and between the microbes and a eukaryotic host, various microbial interactions take place in an ever-changing environment. Those microbial interactions are crucial for a successful establishment and maintenance of a microbial population. The basic unit of interaction is the gene expression of each organism in this community in response to biotic or abiotic stimuli. Differential gene expression is responsible for producing exchangeable molecules involved in the interactions, ultimately leading to community behavior. Cooperative and competitive interactions within bacterial communities and between the associated bacteria and the host are the focus of this review, emphasizing microbial cell–cell communication (quorum sensing). Further, metagenomics is discussed as a helpful tool to analyze the complex genomic information of microbial communities and the functional role of different microbes within a community and to identify novel biomolecules for biotechnological applications.
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Serrano C, Harris PR, Smith PD, Bimczok D. Interactions between H. pylori and the Gastric Microbiome: Impact on Gastric Homeostasis and Disease. CURRENT OPINION IN PHYSIOLOGY 2021; 21:57-64. [PMID: 34113748 PMCID: PMC8186273 DOI: 10.1016/j.cophys.2021.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Like many seemingly inhospitable environments on our planet, the highly acidic human stomach harbors a diverse bacterial microflora. The best-known member of the human gastric flora, Helicobacter pylori, causes a number of gastric diseases, including peptic ulcer disease and gastric adenocarcinoma. In the absence of Helicobacter pylori infection, the gastric microbiota displays some features similar to the oral cavity with Firmicutes the most common phylum, followed by Proteobacteria and Bacteroidetes. When present, H. pylori dominates the gastric microbiome and reduces diversity and composition of other taxa. The composition of the gastric microbiome also is altered in the setting of proton pump inhibitor therapy and gastric neoplasia. This review summarizes foundational and recent studies that have investigated the composition of the human gastric microbiome in a variety of patient groups, with a focus on potential mechanisms involved in regulation of gastric microbial community structure.
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Affiliation(s)
- Carolina Serrano
- Department of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Paul R. Harris
- Department of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Phillip D. Smith
- Department of Medicine, Division of Gastroenterology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Diane Bimczok
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717
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Impact of Environmental and Pharmacologic Changes on the Upper Gastrointestinal Microbiome. Biomedicines 2021; 9:biomedicines9060617. [PMID: 34072493 PMCID: PMC8229529 DOI: 10.3390/biomedicines9060617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 02/08/2023] Open
Abstract
Diseases of the upper gastrointestinal tract have become more prevalent over time. Mechanisms of disease formation are still only partially understood. Recent literature has shown that the surrounding microbiome affects the propensity for disease formation in various parts of the upper gastrointestinal tract. A review was performed of any literature to our best knowledge concerning the effects of pharmacologic agents, environmental changes, and surgical intervention on the microbiome of the upper gastrointestinal tract. Searches of the literature were performed using specific keywords related to drugs, surgical procedures, and environmental factors. Many prescription and nonprescription drugs that are commonly used have varying effects on the upper gastrointestinal tract. Proton pump inhibitors may affect the relative prevalence of some organisms in the lower esophagus and have less effect in the proximal esophagus. Changes in the esophageal microbiome correlate with some esophageal diseases. Drugs that induce weight loss have also been shown to affect the microbiomes of the esophagus and stomach. Common surgical procedures are associated with shifts in the microbial community in the gastrointestinal tract. Environmental factors have been shown to affect the microbiome in the upper gastrointestinal tract, as geographic differences correlate with alterations in the microbiome of the gastrointestinal tract. Understanding the association of environmental and pharmacologic changes on the microbiome of the upper gastrointestinal tract will facilitate treatment plans to reduce morbidity from disease.
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79
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Jonaitis P, Kupcinskas L, Kupcinskas J. Molecular Alterations in Gastric Intestinal Metaplasia. Int J Mol Sci 2021; 22:ijms22115758. [PMID: 34071181 PMCID: PMC8199079 DOI: 10.3390/ijms22115758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) remains one of the most common causes of mortality worldwide. Intestinal metaplasia (IM) is one of the preneoplastic gastric lesions and is considered an essential predisposing factor in GC development. Here we present a review of recent most relevant papers to summarize major findings on the molecular alterations in gastric IM. The latest progress in novel diagnostic methods allows scientists to identify various types of molecular alterations in IM, such as polymorphisms in various genes, changes in the expression of micro-RNAs and long noncoding RNAs, and altered microbiome profiles. The results have shown that some of these alterations have strong associations with IM and a potential to be used for screening, treatment, and prognostic purposes; however, one of the most important limiting factors is the inhomogeneity of the studies. Therefore, further large-scale studies and clinical trials with standardized methods designed by multicenter consortiums are needed. As of today, various molecular alterations in IM could become a part of personalized medicine in the near future, which would help us deliver a personalized approach for each patient and identify those at risk of progression to GC.
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80
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Aldars-García L, Chaparro M, Gisbert JP. Systematic Review: The Gut Microbiome and Its Potential Clinical Application in Inflammatory Bowel Disease. Microorganisms 2021; 9:microorganisms9050977. [PMID: 33946482 PMCID: PMC8147118 DOI: 10.3390/microorganisms9050977] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/22/2021] [Accepted: 04/29/2021] [Indexed: 02/07/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic relapsing-remitting systemic disease of the gastrointestinal tract. It is well established that the gut microbiome has a profound impact on IBD pathogenesis. Our aim was to systematically review the literature on the IBD gut microbiome and its usefulness to provide microbiome-based biomarkers. A systematic search of the online bibliographic database PubMed from inception to August 2020 with screening in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was conducted. One-hundred and forty-four papers were eligible for inclusion. There was a wide heterogeneity in microbiome analysis methods or experimental design. The IBD intestinal microbiome was generally characterized by reduced species richness and diversity, and lower temporal stability, while changes in the gut microbiome seemed to play a pivotal role in determining the onset of IBD. Multiple studies have identified certain microbial taxa that are enriched or depleted in IBD, including bacteria, fungi, viruses, and archaea. The two main features in this sense are the decrease in beneficial bacteria and the increase in pathogenic bacteria. Significant differences were also present between remission and relapse IBD status. Shifts in gut microbial community composition and abundance have proven to be valuable as diagnostic biomarkers. The gut microbiome plays a major role in IBD, yet studies need to go from casualty to causality. Longitudinal designs including newly diagnosed treatment-naïve patients are needed to provide insights into the role of microbes in the onset of intestinal inflammation. A better understanding of the human gut microbiome could provide innovative targets for diagnosis, prognosis, treatment and even cure of this relevant disease.
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Affiliation(s)
- Laila Aldars-García
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, 28006 Madrid, Spain; (L.A.-G.); (M.C.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - María Chaparro
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, 28006 Madrid, Spain; (L.A.-G.); (M.C.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - Javier P. Gisbert
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, 28006 Madrid, Spain; (L.A.-G.); (M.C.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
- Correspondence: ; Tel.: +34-913-093-911; Fax: +34-915-204-013
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81
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Spósito L, Fortunato GC, de Camargo BAF, Ramos MADS, Souza MPCD, Meneguin AB, Bauab TM, Chorilli M. Exploiting drug delivery systems for oral route in the peptic ulcer disease treatment. J Drug Target 2021; 29:1029-1047. [PMID: 33729081 DOI: 10.1080/1061186x.2021.1904249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Peptic ulcer disease (PUD) is a common condition that is induced by acid and pepsin causing lesions in the mucosa of the duodenum and stomach. The pathogenesis of PUD is a many-sided scenario, which involves an imbalance between protective factors, such as prostaglandins, blood flow, and cell renewal, and aggressive ones, like alcohol abuse, smoking, Helicobacter pylori colonisation, and the use of non-steroidal anti-inflammatory drugs. The standard oral treatment is well established; however, several problems can decrease the success of this therapy, such as drug degradation in the gastric environment, low oral bioavailability, and lack of vectorisation to the target site. In this way, the use of strategies to improve the effectiveness of these conventional drugs becomes interesting. Currently, the use of drug delivery systems is being explored as an option to improve the drug therapy limitations, such as antimicrobial resistance, low bioavailability, molecule degradation in an acid environment, and low concentration of the drug at the site of action. This article provides a review of oral drug delivery systems looking for improving the treatment of PUD.
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Affiliation(s)
- Larissa Spósito
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Giovanna Capaldi Fortunato
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Bruna Almeida Furquim de Camargo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | | | | | - Andréia Bagliotti Meneguin
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Taís Maria Bauab
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
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Roswall J, Olsson LM, Kovatcheva-Datchary P, Nilsson S, Tremaroli V, Simon MC, Kiilerich P, Akrami R, Krämer M, Uhlén M, Gummesson A, Kristiansen K, Dahlgren J, Bäckhed F. Developmental trajectory of the healthy human gut microbiota during the first 5 years of life. Cell Host Microbe 2021; 29:765-776.e3. [PMID: 33794185 DOI: 10.1016/j.chom.2021.02.021] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/08/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023]
Abstract
The gut is inhabited by a densely populated ecosystem, the gut microbiota, that is established at birth. However, the succession by which different bacteria are incorporated into the gut microbiota is still relatively unknown. Here, we analyze the microbiota from 471 Swedish children followed from birth to 5 years of age, collecting samples after 4 and 12 months and at 3 and 5 years of age as well as from their mothers at birth using 16S rRNA gene profiling. We also compare their microbiota to an adult Swedish population. Genera follow 4 different colonization patterns during establishment where Methanobrevibacter and Christensenellaceae colonize late and do not reached adult levels at 5 years. These late colonizers correlate with increased alpha diversity in both children and adults. By following the children through age-specific community types, we observe that children have individual dynamics in the gut microbiota development trajectory.
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Affiliation(s)
- Josefine Roswall
- Hallands Hospital Halmstad, Department of Pediatrics, Halmstad, Sweden; Gothenburg Pediatric Growth Research Center, Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Lisa M Olsson
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Petia Kovatcheva-Datchary
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Staffan Nilsson
- Department of Mathematical Sciences, Chalmers Tekniska Högskola, Gothenburg, Sweden; Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Valentina Tremaroli
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marie-Christine Simon
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Pia Kiilerich
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Rozita Akrami
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Manuela Krämer
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mathias Uhlén
- Department of Proteomics, KTH-Royal Institute of Technology, Stockholm, Sweden; Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark
| | - Anders Gummesson
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Region Västra Götaland, Sahlgrenska University Hospital, Department of Clinical Genetics and Genomics, Gothenburg, Sweden
| | - Karsten Kristiansen
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark; BGI-Shenzhen, Shenzhen, China
| | - Jovanna Dahlgren
- Gothenburg Pediatric Growth Research Center, Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden; Region Västra Götaland, Sahlgrenska University Hospital, Department of Pediatrics, Gothenburg, Sweden
| | - Fredrik Bäckhed
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Region Västra Götaland, Sahlgrenska University Hospital, Department of Clinical Physiology, Gothenburg, Sweden; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
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83
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Aldars-García L, Marin AC, Chaparro M, Gisbert JP. The Interplay between Immune System and Microbiota in Inflammatory Bowel Disease: A Narrative Review. Int J Mol Sci 2021; 22:ijms22063076. [PMID: 33802883 PMCID: PMC8002696 DOI: 10.3390/ijms22063076] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 12/14/2022] Open
Abstract
The importance of the gut microbiota in human health is currently well established. It contributes to many vital functions such as development of the host immune system, digestion and metabolism, barrier against pathogens or brain–gut communication. Microbial colonization occurs during infancy in parallel with maturation of the host immune system; therefore, an adequate cross-talk between these processes is essential to generating tolerance to gut microbiota early in life, which is crucial to prevent allergic and immune-mediated diseases. Inflammatory bowel disease (IBD) is characterized by an exacerbated immune reaction against intestinal microbiota. Changes in abundance in the gut of certain microorganisms such as bacteria, fungi, viruses, and archaea have been associated with IBD. Microbes that are commonly found in high abundance in healthy gut microbiomes, such as F. prausnitzii or R. hominis, are reduced in IBD patients. E. coli, which is usually present in a healthy gut in very low concentrations, is increased in the gut of IBD patients. Microbial taxa influence the immune system, hence affecting the inflammatory status of the host. This review examines the IBD microbiome profile and presents IBD as a model of dysbiosis.
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Affiliation(s)
- Laila Aldars-García
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain; (A.C.M.); (M.C.); (J.P.G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
- Correspondence:
| | - Alicia C. Marin
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain; (A.C.M.); (M.C.); (J.P.G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - María Chaparro
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain; (A.C.M.); (M.C.); (J.P.G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - Javier P. Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain; (A.C.M.); (M.C.); (J.P.G.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
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84
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Zhang X, Li C, Cao W, Zhang Z. Alterations of Gastric Microbiota in Gastric Cancer and Precancerous Stages. Front Cell Infect Microbiol 2021; 11:559148. [PMID: 33747975 PMCID: PMC7966516 DOI: 10.3389/fcimb.2021.559148] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 01/21/2021] [Indexed: 12/19/2022] Open
Abstract
Objective Microbial infections have been shown to contribute to gastric carcinogenesis, the knowledge of gastric microbiota alteration in this process may provide help in early diagnosis of gastric cancer. The aim of this study was to characterize the microbial changes and identify taxonomic biomarkers across stages of gastric carcinogenesis. Methods The gastric microbiota was investigated by 16S rRNA gene analysis in gastric mucosal specimens from 47 patients including superficial gastritis (SG), atrophic gastritis (AG), gastric intraepithelial neoplasia (GIN), and gastric cancer (GC). Differences in microbial composition across the disease stages, especially in GIN and GC were assessed using linear discriminant analysis effect size. Results There was no gradual changing trend in the richness or diversity of the gastric microbiota across stages of gastric carcinogenesis. The relative abundance of dominant taxa at phylum and genus levels didn’t show a gradual shift pattern, and the only four taxa that continuously enriched from SG to GC were Slackia, Selenomonas, Bergeyella, and Capnocytophaga, all of which were oral bacteria. The most representative taxa which were enriched in GC patients were oral bacteria including Parvimonas, Eikenella and Prevotella-2, and environmental bacteria including Kroppenstedtia, Lentibacillus, and Oceanobacillus. The gastric microbiota in GIN patients were characterized by enrichment of intestinal commensals including Romboutsia, Fusicatenibacter, Prevotellaceae-Ga6A1-group, and Intestinimonas. Gastric cardia cancer and non-cardia cancer patients had significantly different microbiota profiles characterized by a higher abundance of Helicobacter in the cardia cancer patients. Conclusions Our results provide insights on potential taxonomic biomarkers for gastric cancer and precancerous stages, and suggest that gastric microbiota might play different roles in the carcinogenesis of cardia cancer and non-cardia cancer.
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Affiliation(s)
- Xinmei Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Chao Li
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Weijun Cao
- Department of Gastroenterology, Jiahui International Hospital, Shanghai, China
| | - Zhenyu Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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85
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Pereira-Marques J, Ferreira RM, Machado JC, Figueiredo C. The influence of the gastric microbiota in gastric cancer development. Best Pract Res Clin Gastroenterol 2021; 50-51:101734. [PMID: 33975676 DOI: 10.1016/j.bpg.2021.101734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 01/31/2023]
Abstract
Colonization of the stomach by Helicobacter pylori is the trigger for a series of gastric mucosal changes that culminate in gastric cancer. Infection with this bacterium is considered the major risk factor for this malignancy. The introduction of high-throughput sequencing technologies coupled to advanced computational pipelines offered an improved understanding of the microbiome, and it is now currently accepted that, besides H. pylori, the stomach harbours a complex microbial community. While it is well established that H. pylori plays a central role in gastric carcinogenesis, the significance of the non-H. pylori microbiota is yet to be clarified. This review will address the state of the art on the relationship between the gastric microbiota and gastric cancer development, and identify areas where additional research is needed before translating microbiome research into preventive and therapeutic strategies to reduce gastric cancer burden.
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Affiliation(s)
- Joana Pereira-Marques
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal; Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
| | - Rui M Ferreira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal; Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
| | - Jose C Machado
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal; Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal; Department of Pathology, Faculty of Medicine of the University of Porto, Alameda Prof. Hernâni Monteiro, 4200 - 319, Porto, Portugal.
| | - Ceu Figueiredo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal; Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal; Department of Pathology, Faculty of Medicine of the University of Porto, Alameda Prof. Hernâni Monteiro, 4200 - 319, Porto, Portugal.
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86
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Uriarte-Navarrete I, Hernández-Lemus E, de Anda-Jáuregui G. Gene-Microbiome Co-expression Networks in Colon Cancer. Front Genet 2021; 12:617505. [PMID: 33659025 PMCID: PMC7917223 DOI: 10.3389/fgene.2021.617505] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/22/2021] [Indexed: 12/27/2022] Open
Abstract
It is known that cancer onset and development arise from complex, multi-factorial phenomena spanning from the molecular, functional, micro-environmental, and cellular up to the tissular and organismal levels. Important advances have been made in the systematic analysis of the molecular (mostly genomic and transcriptomic) within large studies of high throughput data such as The Cancer Genome Atlas collaboration. However, the role of the microbiome in the induction of biological changes needed to reach these pathological states remains to be explored, largely because of scarce experimental data. In recent work a non-standard bioinformatics strategy was used to indirectly quantify microbial abundance from TCGA RNA-seq data, allowing the evaluation of the microbiome in well-characterized cancer patients, thus opening the way to studies incorporating the molecular and microbiome dimensions altogether. In this work, we used such recently described approaches for the quantification of microbial species alongside with gene expression. With this, we will reconstruct bipartite networks linking microbial abundance and gene expression in the context of colon cancer, by resorting to network reconstruction based on measures from information theory. The rationale is that microbial communities may induce biological changes important for the cancerous state. We analyzed changes in microbiome-gene interactions in the context of early (stages I and II) and late (stages III and IV) colon cancer, studied changes in network descriptors, and identify key discriminating features for early and late stage colon cancer. We found that early stage bipartite network is associated with the establishment of structural features in the tumor cells, whereas late stage is related to more advance signaling and metabolic features. This functional divergence thus arise as a consequence of changes in the organization of the corresponding gene-microorganism co-expression networks.
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Affiliation(s)
| | - Enrique Hernández-Lemus
- Computational Genomics Division, National Institute of Genomic Medicine, Mexico City, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Guillermo de Anda-Jáuregui
- Computational Genomics Division, National Institute of Genomic Medicine, Mexico City, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Conacyt Research Chairs, National Council on Science and Technology, Mexico City, Mexico
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87
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Carabotti M, Annibale B, Lahner E. Common Pitfalls in the Management of Patients with Micronutrient Deficiency: Keep in Mind the Stomach. Nutrients 2021; 13:nu13010208. [PMID: 33450823 PMCID: PMC7828248 DOI: 10.3390/nu13010208] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 12/31/2020] [Accepted: 01/08/2021] [Indexed: 02/05/2023] Open
Abstract
Micronutrient deficiencies are relatively common, in particular iron and cobalamin deficiency, and may potentially lead to life-threatening clinical consequences when not promptly recognized and treated, especially in elderly patients. The stomach plays an important role in the homeostasis of some important hematopoietic micronutrients like iron and cobalamin, and probably in others equally important such as ascorbic acid, calcium, and magnesium. A key role is played by the corpus oxyntic mucosa composed of parietal cells whose main function is gastric acid secretion and intrinsic factor production. Gastric acid secretion is necessary for the digestion and absorption of cobalamin and the absorption of iron, calcium, and probably magnesium, and is also essential for the absorption, secretion, and activation of ascorbic acid. Several pathological conditions such as Helicobacter pylori-related gastritis, corpus atrophic gastritis, as well as antisecretory drugs, and gastric surgery may interfere with the normal functioning of gastric oxyntic mucosa and micronutrients homeostasis. Investigation of the stomach by gastroscopy plus biopsies should always be considered in the management of patients with micronutrient deficiencies. The current review focuses on the physiological and pathophysiological aspects of gastric acid secretion and the role of the stomach in iron, cobalamin, calcium, and magnesium deficiency and ascorbate homeostasis.
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88
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Tao ZH, Han JX, Fang JY. Helicobacter pylori infection and eradication: Exploring their impacts on the gastrointestinal microbiota. Helicobacter 2020; 25:e12754. [PMID: 32876377 DOI: 10.1111/hel.12754] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/12/2020] [Accepted: 08/03/2020] [Indexed: 12/16/2022]
Abstract
The rapid development of microbiota research has remolded our view of human physiological and pathological processes. Among all the gastrointestinal microorganisms, Helicobacter pylori (H pylori) is probably the most notorious constituent. Although half of the adults worldwide are infected with H pylori, their clinical manifestations vary widely, suggesting other microorganisms beyond H pylori may play a role in determining clinical outcomes. Recently, many studies have put effort into elucidating the crosstalk within the human microbiota, some of which specifically explored the interplay between H pylori and other gastrointestinal microbial members. In this work, we reviewed these potential interactions. Meanwhile, the impacts of H pylori eradication therapy on gastrointestinal microbial homeostasis were summarized in terms of diversity, composition, functional capacity, and antibiotic resistance.
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Affiliation(s)
- Zhi-Hang Tao
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ji-Xuan Han
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing-Yuan Fang
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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89
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Conti L, Annibale B, Lahner E. Autoimmune Gastritis and Gastric Microbiota. Microorganisms 2020; 8:microorganisms8111827. [PMID: 33228138 PMCID: PMC7699377 DOI: 10.3390/microorganisms8111827] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/14/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
Autoimmune atrophic gastritis is an organ-specific immune-mediated condition characterized by atrophy of the oxyntic mucosa. Autoimmune atrophic gastritis (AIG) is characterized by a progressive loss of acid-secreting parietal cells leading to hypo-achlorhydria. Due to this peculiar intra-gastric environment, gastric microbiota composition in individuals with autoimmune atrophic gastritis was first supposed and then recently reported to be different from subjects with a normal acidic healthy stomach. Recent data confirm the prominent role of Helicobacter pylori as the main bacterium responsible for gastric disease and long-term complications. However, other bacteria than Helicobacter pylori, for example, Streptococci, were found in subjects who developed gastric cancer and in subjects at risk of this fearful complication, as well as those with autoimmune gastritis. Gastric microbiota composition is challenging to study due to the acidic gastric environment, the difficulty of obtaining representative samples of the entire gastric microbiota, and the possible contamination by oral or throat microorganisms, which can potentially lead to the distortion of the original gastric microbial composition, but innovative molecular approaches based on the analysis of the hyper-variable region of the 16S rRNA gene have been developed, permitting us to obtain an overall microbial composition view of the RNA gene that is present only in prokaryotic cells.
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Affiliation(s)
| | | | - Edith Lahner
- Correspondence: ; Tel.: +39-0633775695 (L.C. & B.A. & E.L.)
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90
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Gisbert JP. Empirical or susceptibility-guided treatment for Helicobacter pylori infection? A comprehensive review. Therap Adv Gastroenterol 2020; 13:1756284820968736. [PMID: 33240392 PMCID: PMC7675893 DOI: 10.1177/1756284820968736] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023] Open
Abstract
Although susceptibility-guided therapy is frequently recommended for Helicobacter pylori infection, the evidence available to date supporting this strategy is limited. The aim of the present article is to review the advantages and limitations of the susceptibility-guided and the empirical strategies to treat this infection. We performed a bibliographic search to identify studies investigating H. pylori susceptibility-guided therapy. Culture is not the only way to assess antibiotic resistance, as different polymerase chain reaction-based approaches have been developed as alternative methods. For detecting H. pylori antimicrobial resistance, a molecular approach based on a stool sample might enable more convenient, time-saving methods. Unfortunately, the antimicrobial susceptibility cannot be obtained in all cases. Furthermore, antibiotic susceptibility testing in clinical practice yields useful information only for a few antibiotics: clarithromycin, metronidazole, and quinolones. In addition, susceptibility towards clarithromycin and metronidazole in vitro does not necessarily lead to eradication in vivo. In the case of H. pylori therapy failure, we should not re-administer any of the antibiotics against which H. pylori has probably become resistant. Our updated meta-analysis showed that susceptibility-guided treatment is not better than empirical treatment of H. pylori infection in first-line therapy if the most updated quadruple regimens are empirically prescribed, and similar efficacy results were also demonstrated with the two strategies for second-line therapy. Cumulative H. pylori eradication rate with several successive rescue therapies empirically prescribed reaches almost 100%. Finally, the studies that have evaluated the cost-effectiveness of the susceptibility-guided treatment have achieved contradictory results. In summary, we can conclude that the evidence is too limited to support the generalized use of susceptibility-guided therapy for H. pylori treatment in routine clinical practice, either as first-line or as rescue treatment. Nevertheless, it would be recommended that susceptibility tests are performed routinely, even before prescribing first-line treatment, in specialized centers with an interest in H. pylori management.
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Affiliation(s)
- Javier P. Gisbert
- Gastroenterology Unit, Hospital Universitario de La
Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad
Autónoma de Madrid, Centro de Investigación Biomédica en Red de Enfermedades
Hepáticas y Digestivas (CIBEREHD), Diego de León, 62, Madrid, 28006, Spain
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91
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Diagnosis of Helicobacter pylori infection: Progress and challenges. Enferm Infecc Microbiol Clin 2020; 38:407-409. [DOI: 10.1016/j.eimc.2020.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
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92
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The impact of modulating the gastrointestinal microbiota in cancer patients. Best Pract Res Clin Gastroenterol 2020; 48-49:101700. [PMID: 33317795 DOI: 10.1016/j.bpg.2020.101700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 01/31/2023]
Abstract
Gastrointestinal microbiota is vastly deregulated in cancer patients due to different factors, but the exact mechanisms of interaction between cancer and microbiome are still poorly understood. Current evidence suggests that alterations in the composition of the microbiota may affect efficacy and toxicity of anti-cancer therapies. Recent preclinical and clinical studies demonstrate different mechanisms and outcomes of deregulation of gut microbiome, and investigate effects of modulating gastrointestinal microbiota in cancer patients. This paper reviews effects of altered microbiome on anti-cancer management, including antibiotics, chemotherapy and immunotherapy, as well as possible outcomes of modulating altered microbiome by probiotics or faecal microbiome transplantation in cancer patients.
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93
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Fisher L, Fisher A, Smith PN. Helicobacter pylori Related Diseases and Osteoporotic Fractures (Narrative Review). J Clin Med 2020; 9:E3253. [PMID: 33053671 PMCID: PMC7600664 DOI: 10.3390/jcm9103253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/28/2020] [Accepted: 10/07/2020] [Indexed: 02/06/2023] Open
Abstract
Osteoporosis (OP) and osteoporotic fractures (OFs) are common multifactorial and heterogenic disorders of increasing incidence. Helicobacter pylori (H.p.) colonizes the stomach approximately in half of the world's population, causes gastroduodenal diseases and is prevalent in numerous extra-digestive diseases known to be associated with OP/OF. The studies regarding relationship between H.p. infection (HPI) and OP/OFs are inconsistent. The current review summarizes the relevant literature on the potential role of HPI in OP, falls and OFs and highlights the reasons for controversies in the publications. In the first section, after a brief overview of HPI biological features, we analyze the studies evaluating the association of HPI and bone status. The second part includes data on the prevalence of OP/OFs in HPI-induced gastroduodenal diseases (peptic ulcer, chronic/atrophic gastritis and cancer) and the effects of acid-suppressive drugs. In the next section, we discuss the possible contribution of HPI-associated extra-digestive diseases and medications to OP/OF, focusing on conditions affecting both bone homeostasis and predisposing to falls. In the last section, we describe clinical implications of accumulated data on HPI as a co-factor of OP/OF and present a feasible five-step algorithm for OP/OF risk assessment and management in regard to HPI, emphasizing the importance of an integrative (but differentiated) holistic approach. Increased awareness about the consequences of HPI linked to OP/OF can aid early detection and management. Further research on the HPI-OP/OF relationship is needed to close current knowledge gaps and improve clinical management of both OP/OF and HPI-related disorders.
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Affiliation(s)
- Leon Fisher
- Department of Gastroenterology, Frankston Hospital, Peninsula Health, Melbourne 3199, Australia
| | - Alexander Fisher
- Department of Geriatric Medicine, The Canberra Hospital, ACT Health, Canberra 2605, Australia;
- Department of Orthopedic Surgery, The Canberra Hospital, ACT Health, Canberra 2605, Australia;
- Australian National University Medical School, Canberra 2605, Australia
| | - Paul N Smith
- Department of Orthopedic Surgery, The Canberra Hospital, ACT Health, Canberra 2605, Australia;
- Australian National University Medical School, Canberra 2605, Australia
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94
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Shin CM. Alternations of Gastric Microbiota with Mucosal Atrophy and Intestinal Metaplasia. THE KOREAN JOURNAL OF HELICOBACTER AND UPPER GASTROINTESTINAL RESEARCH 2020. [DOI: 10.7704/kjhugr.2020.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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95
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Schulz C, Kupčinskas J. Review - Helicobacter pylori and non-malignant upper gastro-intestinal diseases. Helicobacter 2020; 25 Suppl 1:e12738. [PMID: 32918346 DOI: 10.1111/hel.12738] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review takes into account recent publications focusing on the relationship between Helicobacter pylori infection and non-malignant diseases of the upper gastro-intestinal tract. The authors have summarized current knowledge on associations between the H pylori infection and non-malignant upper GI conditions including gastroesophageal reflux disease (GERD), Barrett's esophagus, eosinophilic esophagitis (EOE), peptic ulcer disease (PUD), H pylori gastritis, celiac disease and functional dyspepsia. In the field of GERD, current data focusing on different locations of H pylori infection detect significant differences between antrum- and corpus predominant gastritis explainable by different changes in acid secretion in different gastric niches. High volume studies from Sweden and Brazil underline the safety of H pylori eradication concerning the risk of Barret's esophagus or adenocarcinoma. The relationship betweenH pylori infection and EOE remains uncertain, but current data supports the concept of expected positive and protective effects of H pylori exposure reducing the risk of EOE. Analyzing biomarkers might be helpful to identify subjects under risk for the development of precancerous lesions after H pylori infection, where microRNAs, IL-9 and IL-4, and also Tc17/9 and Th17/9 and microbiota profiles showed promising results to identify subgroups under risk.
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Affiliation(s)
- Christian Schulz
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - Juozas Kupčinskas
- Department of Gastroenterology & Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
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96
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Vermorken AJM, Zhu J, Cui Y. Letter: does Helicobacter pylori infection limit the health effects of the Mediterranean diet? Aliment Pharmacol Ther 2020; 52:935-936. [PMID: 32852836 DOI: 10.1111/apt.15945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Alphons J M Vermorken
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, P.R. China.,National Engineering Research Center for Miniaturized Detection Systems, Xi'an, Shaanxi, P.R. China
| | - Jingjing Zhu
- De Duve Institute, Université Catholique de Louvain, Brussels, Belgium.,Ludwig Institute for Cancer Research, Brussels, Belgium
| | - Yali Cui
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, P.R. China.,National Engineering Research Center for Miniaturized Detection Systems, Xi'an, Shaanxi, P.R. China
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97
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Jeong JY, Kim TB, Kim J, Choi HW, Kim EJ, Yoo HJ, Lee S, Jun HR, Yoo W, Kim S, Kim SC, Jun E. Diversity in the Extracellular Vesicle-Derived Microbiome of Tissues According to Tumor Progression in Pancreatic Cancer. Cancers (Basel) 2020; 12:E2346. [PMID: 32825137 PMCID: PMC7563179 DOI: 10.3390/cancers12092346] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 12/19/2022] Open
Abstract
This study was conducted to identify the composition and diversity of the microbiome in tissues of pancreatic cancer and to determine its role. First, extracellular vesicles (EVs) were obtained from the paired tumor and normal tissues, and 16s rRNA gene sequencing was performed. We identified the microbiomes, compared the diversity between groups, and found that Tepidimonas was more abundant in tumors. Second, larger tumors resulted in lower levels of Leuconostoc and Sutterella, and increased lymph node metastasis resulted in higher levels of Comamonas and Turicibacter in tumor tissues. Moreover, in the case of tumor recurrence, the levels of Streptococcus and Akkermansia were decreased in tumor tissues. Finally, with the supernatant of Tepidimonasfonticaldi, proliferation and migration of cells increased, and epithelial-mesenchymal transition and the Tricarboxylic Acid (TCA) cycle-related metabolites were enhanced. The composition and diversity of EV-derived microbiomes are important for providing novel insights into theragnostic approaches in pancreatic cancer.
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Affiliation(s)
- Jin-Yong Jeong
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
| | - Tae-Bum Kim
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea;
| | - Jinju Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
| | - Hwi Wan Choi
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
| | - Eo Jin Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
| | - Hyun Ju Yoo
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
| | - Song Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (S.L.); (H.R.J.)
| | - Hye Ryeong Jun
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (S.L.); (H.R.J.)
| | - Wonbeak Yoo
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea;
| | - Seokho Kim
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Korea;
| | - Song Cheol Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (S.L.); (H.R.J.)
- Biomedical Engineering Research Center, Asan Institute of Life Science, AMIST, Asan Medical Center, Seoul 05505, Korea
| | - Eunsung Jun
- Department of Convergence Medicine, Asan Institute for Life Sciences, University of Ulsan College of Medicine and Asan Medical Center, Seoul 05505, Korea; (J.-Y.J.); (J.K.); (H.W.C.); (E.J.K.); (H.J.Y.)
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (S.L.); (H.R.J.)
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98
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Perry IE, Sonu I, Scarpignato C, Akiyama J, Hongo M, Vega KJ. Potential proton pump inhibitor-related adverse effects. Ann N Y Acad Sci 2020; 1481:43-58. [PMID: 32761834 DOI: 10.1111/nyas.14428] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/31/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022]
Abstract
Proton pump inhibitors (PPIs) are one of the most common medications taken by patients worldwide. PPIs are used to treat acid-related disorders, including gastroesophageal reflux disease, peptic ulcer disease, Helicobacter pylori infection, and nonsteroidal anti-inflammatory drug/stress ulceration. For some of these diseases, long-term treatment is necessary. With such prolonged use, concern and investigation into potential adverse effects has increased. In addition, data are available regarding potential anticancer effects of PPIs, especially regarding solid tumors. The aim of this review is to assess the literature on PPIs with regard to common concerns, such as drug-drug interactions, the intestinal microbiome, dementia and central nervous system disease, and osteoporosis, as well as to highlight potential negative and positive impacts of the drug in cancer.
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Affiliation(s)
- Issac E Perry
- Division of Gastroenterology and Hepatology, Augusta University-Medical College of Georgia, Augusta, Georgia
| | - Irene Sonu
- Division of Gastroenterology and Hepatology, Stanford University, Redwood City, California
| | - Carmelo Scarpignato
- Department of Health Sciences, United Campus of Malta, Msida, Malta.,Faculty of Medicine, Chinese University of Hong Kong, ShaTin, Hong Kong
| | - Junichi Akiyama
- Division of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Michio Hongo
- Department of Comprehensive Medicine, Tohoku University School of Medicine, Sendai, Miyagi, Japan.,Department of Medicine, Kurokawa General Hospital, Kurokawa, Miyagi, Japan
| | - Kenneth J Vega
- Division of Gastroenterology and Hepatology, Augusta University-Medical College of Georgia, Augusta, Georgia
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99
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Spiegelhauer MR, Kupcinskas J, Johannesen TB, Urba M, Skieceviciene J, Jonaitis L, Frandsen TH, Kupcinskas L, Fuursted K, Andersen LP. Transient and Persistent Gastric Microbiome: Adherence of Bacteria in Gastric Cancer and Dyspeptic Patient Biopsies after Washing. J Clin Med 2020; 9:jcm9061882. [PMID: 32560179 PMCID: PMC7357088 DOI: 10.3390/jcm9061882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori is a common colonizer of the human stomach, and long-term colonization has been related to development of atrophic gastritis, peptic ulcers and gastric cancer. The increased gastric pH caused by H. pylori colonization, treatment with antibiotics or proton pump inhibitors (PPI) may allow growth of other bacteria. Previous studies have detected non-Helicobacter bacteria in stomach biopsies, but no conclusion has been made of whether these represent a transient contamination or a persistent microbiota. The aim of this study was to evaluate the transient and persistent bacterial communities of gastric biopsies. The washed or unwashed gastric biopsies were investigated by cultivation and microbiota analysis (16S rRNA gene-targeted amplicon sequencing) for the distribution of H. pylori and other non-Helicobacter bacteria. The number of cultured non-Helicobacter bacteria decreased in the washed biopsies, suggesting that they might be a transient contamination. No significant differences in the bacterial diversity were observed in the microbiome analysis between unwashed and washed biopsies. However, the bacterial diversity in biopsies shown H. pylori-positive and H. pylori-negative were significantly different, implying that H. pylori is the major modulator of the gastric microbiome. Further large-scale studies are required to investigate the transient and persistent gastric microbiota.
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Affiliation(s)
- Malene R. Spiegelhauer
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
- Correspondence: ; Tel.: +45-2585-2011
| | - Juozas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Thor B. Johannesen
- Department of Clinical Microbiology and Infection Control, Statens Serum Institute, Artillerivej 5, 2300 Copenhagen, Denmark; (T.B.J.); (K.F.)
| | - Mindaugas Urba
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Laimas Jonaitis
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
| | - Tove H. Frandsen
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
| | - Limas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Kurt Fuursted
- Department of Clinical Microbiology and Infection Control, Statens Serum Institute, Artillerivej 5, 2300 Copenhagen, Denmark; (T.B.J.); (K.F.)
| | - Leif P. Andersen
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
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100
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Abstract
PURPOSE OF THE REVIEW Atrophic gastritis is a complex syndrome with gastric atrophy as a common trait. Helicobacter pylori infection and autoimmunity are the two main contexts in which it develops. It is slightly symptomatic, affects various aspects of general health, and remains a predisposing factor for gastric cancer. This review will update current knowledge and progress on atrophic gastritis. RECENT FINDINGS Atrophic gastritis affects mostly adults with persistent dyspepsia, deficient anemia, autoimmunity disease, long-term proton pump inhibitor use, and a family history of gastric cancer. Gastric biopsies, expressed as Sydney system grade and OLGA/OLGIM classifications, represent the gold standard for diagnosis and cancer risk stage, respectively. Recently, electronic chromoendoscopy has allowed "targeted biopsies" of intestinal metaplasia. The associated hypochlorhydria affects the gastric microbiota composition suggesting that non-Helicobacter pylori microbiota may participate in the development of gastric cancer. Physicians should be aware of multifaceted clinical presentation of atrophic gastritis. It should be endoscopically monitored by targeted gastric biopsies. Autoimmune and Helicobacter pylori-induced atrophic gastritis are associated with different gastric microbial profiles playing different roles in gastric tumorigenesis.
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Affiliation(s)
- Edith Lahner
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035 -, 00189, Rome, Italy
| | - Laura Conti
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035 -, 00189, Rome, Italy
| | - Bruno Annibale
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035 -, 00189, Rome, Italy
| | - Vito Domenico Corleto
- Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035 -, 00189, Rome, Italy.
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