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Chen D, Wang W, Chen X, Liang N, Li J, Ding W, Zhang H, Yang Z, Zhao H, Liu Z. Plant-derived extracts or compounds for Helicobacter-associated gastritis: a systematic review of their anti-Helicobacter activity and anti-inflammatory effect in animal experiments. Chin Med 2025; 20:53. [PMID: 40264171 PMCID: PMC12013188 DOI: 10.1186/s13020-025-01093-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 03/10/2025] [Indexed: 04/24/2025] Open
Abstract
BACKGROUND Helicobacter infection, which is the leading cause of gastritis and stomach cancer, has become common worldwide. Almost all Helicobacter-infected patients have chronic active gastritis, also known as Helicobacter-associated gastritis (HAG). However, the eradication rate of Helicobacter is decreasing due to the poor efficacy of current medications, which causes infection to recur, inflammation to persist, and stomach cancer to develop. Natural components have robust antibacterial activity and anti-inflammatory capacity, as confirmed by many studies of alternative natural medicines. PURPOSE This article aimed to conduct a comprehensive search and meta-analysis to evaluate the efficacy of anti-Helicobacter and anti-inflammatory activities of plant-derived extracts or compounds that can treat HAG in animal experiments. We intended to provide detailed preclinical-research foundation including plant and compound information, as well as the mechanisms by which these plant-derived substances inhibit the progression of Helicobacter infection, gastritis and neoplasms for future study. METHODS The systematic review is aligned with the guidelines outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, and the protocol was registered in PROSPERO (CRD42024527889). An extensive search was performed across multiple databases, including PubMed, Scopus, Web of Science, Embase, China National Knowledge Infrastructure (CNKI), the Chinese Scientific Journal database (VIP), the Wanfang database, and the China biomedical literature service system (SinoMed), up until November 2023. Meta-analysis on Review Manager software (RevMan 5.4) estimating anti-Helicobacter and anti-inflammatory activity was performed. We used the Systematic Review Center for Laboratory Animal Experimentation (SYRCLE) risk of bias tool to evaluate the risk of bias of each study included. RESULTS Our study encompassed 61 researches, comprised 36 extracts and 37 compounds improving HAG by inhibiting Helicobacter infection, the inflammatory response, oxidative stress, and regulating apoptosis and proliferation. Sixteen families especially Asteraceae, Fabaceae and Rosaceae and nine classes including Terpenoids, Alkaloids, Phenols, and Flavonoids may be promising directions for valuable new drugs. The Meta-analyse demonstrated the plant-base substance treatments possess significant anti-Helicobacter and anti-inflammation activity comparing to control groups. The included plants and compounds confirmed that signaling pathways NF-κB, JAK2/STAT3, MAPK, TLR4/MyD88, PI3K/AKT, NLRP3/Caspase-1 and NRF2/HO-1 play a key role in the progression of HAG. CONCLUSION Plant-derived extracts or compounds actively improve HAG by modulating relevant mechanisms and signaling pathways, particularly through the anti-Helicobacter and inflammatory regulation ways. Further researches to apply these treatments in humans are needed, which will provide direction for the future development of therapeutic drugs to increase eradication rate and alleviate gastritis.
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Affiliation(s)
- Danni Chen
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Wenlai Wang
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimen Nei, Dongcheng District, Beijing, 100700, China
| | - Xiangyun Chen
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Ning Liang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jiawang Li
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Wei Ding
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China
| | - Hongrui Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
- Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Zhen Yang
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chaoyang District, Beijing, 100029, China.
| | - Hongxia Zhao
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimen Nei, Dongcheng District, Beijing, 100700, China.
| | - Zhenhong Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China.
- Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, 100700, China.
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Ghorashi AC, Boucher A, Archer-Hartmann SA, Zalem D, Taherzadeh Ghahfarrokhi M, Murray NB, Konada RSR, Zhang X, Xing C, Teneberg S, Azadi P, Yrlid U, Kohler JJ. Fucosylation of glycoproteins and glycolipids: opposing roles in cholera intoxication. Nat Chem Biol 2025; 21:555-566. [PMID: 39414978 DOI: 10.1038/s41589-024-01748-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/13/2024] [Indexed: 10/18/2024]
Abstract
Cholera toxin (CT) is the etiological agent of cholera. Here we report that multiple classes of fucosylated glycoconjugates function in CT binding and intoxication of intestinal epithelial cells. In Colo205 cells, knockout (KO) of B3GNT5, which encodes an enzyme required for synthesis of lacto and neolacto series glycosphingolipids (GSLs), reduces CT binding but sensitizes cells to intoxication. Overexpressing B3GNT5 to generate more fucosylated GSLs confers protection against intoxication, indicating that fucosylated GSLs act as decoy receptors for CT. KO of B3GALT5 causes increased production of fucosylated O-linked and N-linked glycoproteins and leads to increased CT binding and intoxication. KO of B3GNT5 in B3GALT5-KO cells eliminates production of fucosylated GSLs but increases intoxication, identifying fucosylated glycoproteins as functional receptors for CT. These findings provide insight into the molecular determinants regulating CT sensitivity of host cells.
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Affiliation(s)
- Atossa C Ghorashi
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Andrew Boucher
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Dani Zalem
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Nathan B Murray
- Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, USA
| | | | - Xunzhi Zhang
- McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, TX, USA
| | - Chao Xing
- McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Susann Teneberg
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, USA
| | - Ulf Yrlid
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Jennifer J Kohler
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA.
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Suri J, Gilmour R. Expediting Glycospace Exploration: Therapeutic Glycans via Automated Synthesis. Angew Chem Int Ed Engl 2025; 64:e202422766. [PMID: 39936247 PMCID: PMC11933530 DOI: 10.1002/anie.202422766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2024] [Revised: 02/10/2025] [Accepted: 02/11/2025] [Indexed: 02/13/2025]
Abstract
Glycans regulate a vast spectrum of disease-related processes, yet effectively leveraging these important mediators in a therapeutic context remains a frontier in contemporary medicine. Unlike many other classes of clinically important biopolymers, carbohydrates derive from discrete biosynthetic pathways and are not produced directly from genes. The conspicuous absence of a biological blueprint to achieve amplification creates a persistent challenge in obtaining well-defined glycostructures for therapeutic translation. Isolating purified sugars from biological sources is not without challenge, rendering synthetic organic chemistry the nexus of this advancing field. Chemical synthesis has proven to be an unfaltering pillar in the production of complex glycans, but laborious syntheses coupled with purification challenges frequently introduce reproducibility issues. In an effort to reconcile these preparative challenges with the societal importance of glycans, automated glycan synthesis was conceptualised at the start of the 21st century. This rapidly expanding, multifaceted field of scientific endeavor has effectively merged synthetic chemistry with technology and engineering to expedite the precision synthesis of target glycans. This minireview describes the structural diversity and function of glycans generated by automated glycan synthesis platforms over the last five years. The translational impact of these advances is discussed together with current limitations and future directions.
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Affiliation(s)
- James Suri
- Institute for Organic ChemistryUniversity of MünsterCorrensstraße 3648149MünsterGermany
- Cells in Motion (CiM) Interfaculty CenterRöntgenstraße 16D-48149MünsterGermany
| | - Ryan Gilmour
- Institute for Organic ChemistryUniversity of MünsterCorrensstraße 3648149MünsterGermany
- Cells in Motion (CiM) Interfaculty CenterRöntgenstraße 16D-48149MünsterGermany
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4
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Dessenne C, Mariller C, Vidal O, Huvent I, Guerardel Y, Elass-Rochard E, Rossez Y. Glycan-mediated adhesion mechanisms in antibiotic-resistant bacteria. BBA ADVANCES 2025; 7:100156. [PMID: 40207210 PMCID: PMC11979486 DOI: 10.1016/j.bbadva.2025.100156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2024] [Revised: 03/10/2025] [Accepted: 03/13/2025] [Indexed: 04/11/2025] Open
Abstract
Bacterial adhesins play a central role in host-pathogen interactions, with many specifically targeting glycans to mediate bacterial colonization, influence infection dynamics, and evade host immune responses. In this review, we focus on bacterial pathogens identified by the World Health Organization as critical threats to public health and in urgent need of new treatments. We summarize glycoconjugate targets identified in the literature across 19 bacterial genera and species. This comprehensive review provides a foundation for the development of innovative therapeutic strategies to effectively combat these pathogens.
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Affiliation(s)
- Clara Dessenne
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Christophe Mariller
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Olivier Vidal
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Isabelle Huvent
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Yann Guerardel
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
- Institute for Glyco-core Research (iGCORE), Gifu University, Gifu, Japan
| | - Elisabeth Elass-Rochard
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Yannick Rossez
- Université Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
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Siebold K, Chikunova E, Lorz N, Jordan C, Gossert AD, Gilmour R. Fluoro-Fucosylation Enables the Interrogation of the Le a-LecB Interaction by BioNMR Spectroscopy. Angew Chem Int Ed Engl 2025; 64:e202423782. [PMID: 39902623 DOI: 10.1002/anie.202423782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2024] [Revised: 01/30/2025] [Accepted: 01/31/2025] [Indexed: 02/05/2025]
Abstract
Fucosylation patterns in cell-surface glycans are essential mediators of recognition and signalling. Aberrations in these signatures serve as vital diagnostic markers of disease progression, and so understanding fucose-protein interactions at the molecular level is crucial. Molecular editing of l-fucose (Fuc) at C2 with fluorine provides a platform to reconcile the ubiquity of fucosylation with the paucity of strategies to interrogate site-specific interactions. Through judicious introduction of a pseudo-equatorial fluorine [C(sp3)-F] adjacent to the anomeric position, β-selective fucosylation can be achieved with a range of diverse acceptors (>50 : 1): the selectivity of this process can be inverted through changes in the donor scaffold. Reaction development was driven by the desire to construct a fluorinated analogue of Lewis antigen a (F-Lea), in which fluorine replaces a key OH group at C2. Lea is a ligand for Lectin B (LecB) in the pathogen Pseudomonas aeruginosa and thus delineating the importance of key interactions in this complex has ramifications for drug discovery. Independent syntheses of Lea and F-Lea, and systematic bioNMR analyses with both glycans has unequivocally established the essential role of O2 of fucose in the Lea-LecB complex.
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Affiliation(s)
- Kathrin Siebold
- Institute for Organic Chemistry, University of Münster, Corrensstraße 36, 48149, Münster, Germany
| | - Elena Chikunova
- Institute for Organic Chemistry, University of Münster, Corrensstraße 36, 48149, Münster, Germany
| | - Nils Lorz
- Department of Biology, ETH Zürich, Hönggerbergring 64, 8093, Zürich, Switzerland
| | - Christina Jordan
- Institute for Organic Chemistry, University of Münster, Corrensstraße 36, 48149, Münster, Germany
- Department of Biology, ETH Zürich, Hönggerbergring 64, 8093, Zürich, Switzerland
| | - Alvar D Gossert
- Department of Biology, ETH Zürich, Hönggerbergring 64, 8093, Zürich, Switzerland
| | - Ryan Gilmour
- Institute for Organic Chemistry, University of Münster, Corrensstraße 36, 48149, Münster, Germany
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Liufu R, Chen Y, Wang JY, Wang YYQ, Wu Y, Jiang W, Wang CY, Peng JM, Weng L, Du B. ABO Blood Group and Risk Associated With Sepsis-Associated Thrombocytopenia: A Single-Center Retrospective Study. Crit Care Med 2025; 53:e353-e361. [PMID: 39774137 DOI: 10.1097/ccm.0000000000006523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2025]
Abstract
OBJECTIVES This study aimed to investigate the relationship between ABO blood group and sepsis-associated thrombocytopenia (SAT). DESIGN AND SETTING The primary outcome was SAT within the first 72 hours of ICU admission. PATIENTS The retrospective study included 9113 patients diagnosed with sepsis from January 2014 to December 2022. A total of 6296 patients eventually were included into the study, who were divided into four groups based on ABO blood group. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS A total of 2494 patients (39.6%) were diagnosed with SAT, and 712 (11.3%) of them experiencing severe SAT. The occurrence of SAT among the ABO blood groups was significantly lower in AB blood group compared with the other groups ( p = 0.032). Individuals in AB blood group were less likely to experience severe SAT ( p = 0.028). In multivariate analysis, B blood group (odds ratio [OR], 1.32; 95% CI, 1.05-1.67) and O (OR, 1.37; 95% CI, 1.09-1.72) were significantly associated with a higher occurrence of SAT compared with AB blood group. In multivariate analyses, A blood group (OR, 1.68; 95% CI, 1.16-2.42), B blood group (OR, 1.74; 95% CI, 1.74-2.50), and O blood group (OR, 1.72; 95% CI, 1.20-2.48) remained significantly risk factors associated with a higher occurrence of severe SAT compared with AB blood group. CONCLUSIONS B blood group and O were associated with an increased risk of SAT and severe SAT.
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Affiliation(s)
- Rong Liufu
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
- Department of Cardiovascular Intensive Care Unit, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yan Chen
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Jing-Yi Wang
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Yang-Yan-Qiu Wang
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Yao Wu
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Jiang
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Chun-Yao Wang
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Jin-Min Peng
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Li Weng
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Du
- Medical ICU, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
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Yao Q, Chen X, Zhang Y, Chen H, Dou Y, He W, Sheng W, Ma X, Liu F, Yan W, Huang G. Genome-Wide Association Study Identifies Genetic Polymorphisms for Folate-Related Biomarkers in Chinese Preconception Women. J Nutr 2024; 154:3592-3602. [PMID: 39374789 DOI: 10.1016/j.tjnut.2024.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 09/27/2024] [Accepted: 10/03/2024] [Indexed: 10/09/2024] Open
Abstract
BACKGROUND Single-nucleotide polymorphism (SNP) allele frequencies, dietary habits, and folate status and their associations vary across ethnic populations. Little is known about the SNPs accounting for variations of folate-related biomarkers for Chinese preparing-for-pregnant females. OBJECTIVES We aimed to identify SNPs contributing to RBC and serum folate, vitamin B-12, and homocysteine concentrations in Chinese female preconception population. METHODS A genome-wide association study was conducted on 1000 randomly selected preconception Chinese women from the Shanghai Preconception Cohort. SNPs were genotyped using Illumina chips, and associations with biomarkers were assessed using simple linear regression models under the assumption of an additive genetic model. Genome-wide significance was considered at P < 10-7. RESULTS The MTHFR rs1801133 was the major genetic coding variant contributing to RBC folate, serum folate, and homocysteine concentrations (P = 2.28 × 10-16; P = 8.85 × 10-8, and P = 2.46 × 10-13, repsectively). It is associated with increased RBC folate (β: 0.154 per additional risk allele after log transform), decreased serum folate (β: -0.951 per additional risk allele), and increased serum homocysteine concentrations (β: 1.153 per additional risk allele). The predominant SNP associated with serum folate was rs147162222 in NTRK2 (P = 2.55 × 10-8), although that associated with homocysteine was rs77025184 located between PDE7B and LINC00271 (P = 4.91 × 10-17). For vitamin B-12, FUT2 rs1047781 was the dominant genetic variant (P = 1.59 × 10-10). The numbers of signals with a P value of <10-7 for RBC folate, serum folate, vitamin B-12, and homocysteine were 12, 18, 8, and 614, respectively. CONCLUSIONS This study represents the first genome-wide association study focusing on folate-related biomarkers in a Chinese preparing-for-pregnant female population. The contributions of dominent SNPs to each biomarker are partly different from other populations. The rs1801133 (C677T) in MTHFR is the predominant genetic variant contributing to RBC folate and rs1047781 (A385T) in FUT2 as the primary one explaining vitamin B-12. Notably, the intronic rs147162222 and noncoding rs77025184 are the predominant SNPs for serum folate and homocysteine, respectively.
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Affiliation(s)
- Qinyu Yao
- Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaotian Chen
- Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yi Zhang
- Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Hongyan Chen
- Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yalan Dou
- Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wennan He
- Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wei Sheng
- Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaojing Ma
- Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Fang Liu
- Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Weili Yan
- Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.
| | - Guoying Huang
- Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Beijing, China; Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.
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Zhu Z, Zou Y, Ou L, Chen M, Pang Y, Li H, Hao Y, Su B, Lai Y, Zhang L, Jia J, Wei R, Zhang G, Yao M, Feng Z. Preliminary investigation of the in vitro anti- Helicobacter pylori activity of Triphala. Front Pharmacol 2024; 15:1438193. [PMID: 39629075 PMCID: PMC11611552 DOI: 10.3389/fphar.2024.1438193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 10/31/2024] [Indexed: 12/06/2024] Open
Abstract
Background Triphala, is a composite of three individual botanical drugs: Terminalia chebula, Terminalia bellirica, and Emblica officinalis. It exhibits properties such as heatclearing, anti-inflammatory, anti-fatigue, antioxidant, and antibacterial effects,making it extensively utilized in India and Tibet. It has been found to exhibitinhibitory effects on Helicobacter pylori (H. pylori); however, further comprehensive research is still needed to elucidate its specific antibacterial mechanism. The present study investigates the in vitro antibacterial activity and antibacterial mechanism of Triphala against H. pylori. Methods Ours research investigates the in vitro inhibitory activity of Triphala on multiple standard and clinical strains using microdilution broth method, time-kill curve, time-bactericidal curve and scanning electron microscopy (SEM). Furthermore, the antibacterial mechanism of Triphala is further explored through experiments on urease activity, biofilm formation, anti-adhesion properties, virulence actor assays using RT-qPCR and Western Blotting techniques. Results The research findings indicate that Triphala exhibits a minimum inhibitory concentration of 80-320 μg/mL against both standard and clinical strains of H. pylori. Triphala exerts its anti-H. pylori effect by perturbing the microstructure of H. pylori, downregulating adhesion-associated genes (alpA, alpB, babA), urease-related genes (ureA, ureB, ureE, ureF), and flagellar genes (flaA, flaB); inhibiting bacterial adhesion, biofilm formation, urease activity as well as CagA protein expression. Discussion These findings suggest that Triphala exerts inhibitory effects on H. pylori activity through multiple mechanisms, underscoring its potential as a new drug for the prevention and treatment of H. pylori infection.
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Affiliation(s)
- Zhixiang Zhu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, China
| | - Yuanjing Zou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Ling Ou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Meiyun Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Yujiang Pang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, China
| | - Hui Li
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Yajie Hao
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Bingmei Su
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Yuqian Lai
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Liping Zhang
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Junwei Jia
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Ruixia Wei
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Guimin Zhang
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
| | - Meicun Yao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Zhong Feng
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, China
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China
- Lunan Pharmaceutical Group Co., Ltd., Linyi, Shandong, China
- Shandong Engineering Research Center for New Drug Pharmaceuticals R&D in Shandong Province, Lunan Better Pharmaceutical Co., Ltd., Linyi, Shandong, China
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Stefanucci L, Moslemi C, Tomé AR, Virtue S, Bidault G, Gleadall NS, Watson LPE, Kwa JE, Burden F, Farrow S, Chen J, Võsa U, Burling K, Walker L, Ord J, Barker P, Warner J, Frary A, Renhstrom K, Ashford SE, Piper J, Biggs G, Erber WN, Hoffman GJ, Schoenmakers N, Erikstrup C, Rieneck K, Dziegiel MH, Ullum H, Azzu V, Vacca M, Aparicio HJ, Hui Q, Cho K, Sun YV, Wilson PW, Bayraktar OA, Vidal-Puig A, Ostrowski SR, Astle WJ, Olsson ML, Storry JR, Pedersen OB, Ouwehand WH, Chatterjee K, Vuckovic D, Frontini M. SMIM1 absence is associated with reduced energy expenditure and excess weight. MED 2024; 5:1083-1095.e6. [PMID: 38906141 PMCID: PMC7617389 DOI: 10.1016/j.medj.2024.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/06/2023] [Accepted: 05/29/2024] [Indexed: 06/23/2024]
Abstract
BACKGROUND Obesity rates have nearly tripled in the past 50 years, and by 2030 more than 1 billion individuals worldwide are projected to be obese. This creates a significant economic strain due to the associated non-communicable diseases. The root cause is an energy expenditure imbalance, owing to an interplay of lifestyle, environmental, and genetic factors. Obesity has a polygenic genetic architecture; however, single genetic variants with large effect size are etiological in a minority of cases. These variants allowed the discovery of novel genes and biology relevant to weight regulation and ultimately led to the development of novel specific treatments. METHODS We used a case-control approach to determine metabolic differences between individuals homozygous for a loss-of-function genetic variant in the small integral membrane protein 1 (SMIM1) and the general population, leveraging data from five cohorts. Metabolic characterization of SMIM1-/- individuals was performed using plasma biochemistry, calorimetric chamber, and DXA scan. FINDINGS We found that individuals homozygous for a loss-of-function genetic variant in SMIM1 gene, underlying the blood group Vel, display excess body weight, dyslipidemia, altered leptin to adiponectin ratio, increased liver enzymes, and lower thyroid hormone levels. This was accompanied by a reduction in resting energy expenditure. CONCLUSION This research identified a novel genetic predisposition to being overweight or obese. It highlights the need to investigate the genetic causes of obesity to select the most appropriate treatment given the large cost disparity between them. FUNDING This work was funded by the National Institute of Health Research, British Heart Foundation, and NHS Blood and Transplant.
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Affiliation(s)
- Luca Stefanucci
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK; British Heart Foundation, Cambridge Centre for Research Excellence, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Camous Moslemi
- Department of Clinical Immunology, Zealand University Hospital (Roskilde University), Køge, Denmark
| | - Ana R Tomé
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - Samuel Virtue
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Guillaume Bidault
- University of Cambridge Metabolic Research Laboratories, Institute of Metabolic Science, MDU MRC, Addenbrooke's Hospital, Cambridge, UK
| | - Nicholas S Gleadall
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - Laura P E Watson
- NIHR Cambridge Clinical Research Facility, Cambridge University Hospitals, Cambridge Biomedical Campus, Cambridge, UK
| | - Jing E Kwa
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Frances Burden
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - Samantha Farrow
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - Ji Chen
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Faculty of Health and Life Sciences RILD Building, Barrack Road, Exeter, UK
| | - Urmo Võsa
- Estonian Genome Centre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Keith Burling
- NIHR Cambridge Biomedical Research Centre Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Lindsay Walker
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - John Ord
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK
| | - Peter Barker
- NIHR Cambridge Biomedical Research Centre Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - James Warner
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Amy Frary
- NIHR National BioResource, Cambridge University Hospitals NHS Foundation, Cambridge Biomedical Campus, Cambridge, UK
| | - Karola Renhstrom
- NIHR National BioResource, Cambridge University Hospitals NHS Foundation, Cambridge Biomedical Campus, Cambridge, UK
| | - Sofie E Ashford
- NIHR National BioResource, Cambridge University Hospitals NHS Foundation, Cambridge Biomedical Campus, Cambridge, UK
| | - Jo Piper
- NIHR Cambridge Clinical Research Facility, Cambridge University Hospitals, Cambridge Biomedical Campus, Cambridge, UK
| | - Gail Biggs
- NIHR Cambridge Clinical Research Facility, Cambridge University Hospitals, Cambridge Biomedical Campus, Cambridge, UK
| | - Wendy N Erber
- Discipline of Pathology and Laboratory Science, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Gary J Hoffman
- Discipline of Pathology and Laboratory Medicine, Medical School, The University of Western Australia, Perth, WA, Australia
| | - Nadia Schoenmakers
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus University, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Klaus Rieneck
- Department of Clinical Immunology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Morten H Dziegiel
- Department of Clinical Immunology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | | | - Vian Azzu
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK; Department of Gastroenterology, Norfolk & Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Michele Vacca
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK; Interdisciplinary Department of Medicine, Università degli Studi di Bari "Aldo Moro", Bari, Italy; Roger Williams Institute of Hepatology, London, UK
| | | | - Qin Hui
- Atlanta VA Medical Center, Decatur, GA, USA; Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
| | - Kelly Cho
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA; Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yan V Sun
- Atlanta VA Medical Center, Decatur, GA, USA; Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
| | - Peter W Wilson
- Atlanta VA Medical Center, Decatur, GA, USA; Emory University Schools of Medicine and Public Health, Atlanta, GA, USA
| | - Omer A Bayraktar
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Antonio Vidal-Puig
- University of Cambridge Metabolic Research Laboratories, Institute of Metabolic Science, MDU MRC, Addenbrooke's Hospital, Cambridge, UK; Centro de Innvestigacion Principe Felipe, Valencia, Spain
| | - Sisse R Ostrowski
- Department of Clinical Immunology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - William J Astle
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK; British Heart Foundation, Cambridge Centre for Research Excellence, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; MRC Biostatistics Unit, East Forvie Building, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - Martin L Olsson
- Clinical Immunology and Transfusion Medicine, Office for Medical Services, Region Skåne, Lund, Sweden; Department of Laboratory Medicine, Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden
| | - Jill R Storry
- Clinical Immunology and Transfusion Medicine, Office for Medical Services, Region Skåne, Lund, Sweden; Department of Laboratory Medicine, Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden
| | - Ole B Pedersen
- Department of Clinical Immunology, Zealand University Hospital (Roskilde University), Køge, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Willem H Ouwehand
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK; Department of Haematology, Cambridge University Hospitals NHS Trust, CB2 0QQ Cambridge, UK; Department of Haematology, University College London Hospitals NHS Trust, NW1 2BU London, UK
| | - Krishna Chatterjee
- Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Dragana Vuckovic
- Department of Epidemiology and Biostatistics, School of Public Health, Faculty of Medicine, Imperial College London, London, UK
| | - Mattia Frontini
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK; British Heart Foundation, Cambridge Centre for Research Excellence, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Faculty of Health and Life Sciences RILD Building, Barrack Road, Exeter, UK.
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10
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Benktander J, Sundh H, Sundell K, Sharba S, Teneberg S, Lindén SK. Characterization of the rainbow trout (Oncorhynchus mykiss) mucosal glycosphingolipid repertoire and Aeromonas salmonicida binding to neutral glycosphingolipids. Glycobiology 2024; 34:cwae055. [PMID: 39107988 PMCID: PMC11303275 DOI: 10.1093/glycob/cwae055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 07/02/2024] [Indexed: 08/10/2024] Open
Abstract
Infections pose a challenge for the fast growing aquaculture sector. Glycosphingolipids are cell membrane components that pathogens utilize for attachment to the host to initiate infection. Here, we characterized rainbow trout glycosphingolipids from five mucosal tissues using mass spectrometry and nuclear magnetic resonance and investigated binding of radiolabeled Aeromonas salmonicida to the glycosphingolipids on thin-layer chromatograms. 12 neutral and 14 acidic glycosphingolipids were identified. The glycosphingolipids isolated from the stomach and intestine were mainly neutral, whereas glycosphingolipids isolated from the skin, gills and pyloric caeca were largely acidic. Many of the acidic structures were poly-sialylated with shorter glycan structures in the skin compared to the other tissues. The sialic acids found were Neu5Ac and Neu5Gc. Most of the glycosphingolipids had isoglobo and ganglio core chains, or a combination of these. The epitopes on the rainbow trout glycosphingolipid glycans differed between epithelial sites leading to differences in pathogen binding. A major terminal epitope was fucose, that occurred attached to GalNAc in a α1-3 linkage but also in the form of HexNAc-(Fuc-)HexNAc-R. A. salmonicida were shown to bind to neutral glycosphingolipids from the gill and intestine. This study is the first to do a comprehensive investigation of the rainbow trout glycosphingolipids and analyze binding of A. salmonicida to glycosphingolipids. The structural information paves the way for identification of ways of interfering in pathogen colonization processes to protect against infections in aquaculture and contributes towards understanding A. salmonicida infection mechanisms.
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Affiliation(s)
- John Benktander
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Box 440, Medicinaregatan 9C, Gothenburg 405 30, Sweden
| | - Henrik Sundh
- Department of Biological and Environmental Sciences, Box 463, Medicinareg 7B, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Kristina Sundell
- Department of Biological and Environmental Sciences, Box 463, Medicinareg 7B, University of Gothenburg, Gothenburg 405 30, Sweden
| | - Sinan Sharba
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Box 440, Medicinaregatan 9C, Gothenburg 405 30, Sweden
| | - Susann Teneberg
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Box 440, Medicinaregatan 9C, Gothenburg 405 30, Sweden
| | - Sara K Lindén
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Box 440, Medicinaregatan 9C, Gothenburg 405 30, Sweden
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11
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Zhou S, Zheng Z, Wang L, Song W, Xia Y, Shao L, Liang X. Correlation of FUT3 and FUT6 Gene Polymorphisms With Helicobacter pylori Infection. Helicobacter 2024; 29:e13122. [PMID: 39108208 DOI: 10.1111/hel.13122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 09/17/2024]
Abstract
BACKGROUND Helicobacter pylori infection is a significant pathogen in gastrointestinal diseases. Previous studies have identified single-nucleotide polymorphisms (SNPs) are factors associated with H. pylori infection. Notably, Leb and Sialyl-Lex antigens, regulated by the FUT3 and FUT6 genes, play a crucial role in H. pylori infection. This study aimed to investigate the correlation between FUT3 and FUT6 gene polymorphisms and H. pylori infection in the Han population of northern China. MATERIALS AND METHODS An immunoturbidimetric assay was employed to detect H. pylori infection, categorizing subjects into infected and noninfected groups. Gene variants were identified through sequencing. Finally, FUT3 and FUT6 gene polymorphisms were analyzed to assess their association with H. pylori infection. RESULTS The frequency of the T allele (rs778805) and the G allele (rs61147939) in the infection group was significantly higher than that in the noninfection group (63.4% vs. 55.1%, p = 0.045; 55.2% vs. 47.0%, p = 0.042, respectively). In the infection group, the frequency of the AA genotype (rs3745635) in the recessive model, the TT genotype (rs778805) in the recessive model, and the GG genotype (rs61147939) in the recessive model were significantly higher than the noninfection group (5.8% vs. 2.3%, p = 0.042; 41.9% vs. 29.3%, p = 0.022; 34.9% vs. 20.5%, p = 0.0068, respectively). The frequency of the A13 haplotype and the A13/A13 diplotype of the FUT6 gene was significantly higher in the infection group than in the noninfection group (55.56% vs. 46.32%, p = 0.019; 34.94% vs. 20.30%, p = 0.045, respectively). The rs778805-rs17855739-rs28362459-rs3745635 combination was identified as the best interaction model (p < 0.05). CONCLUSIONS This study suggests that FUT3 and FUT6 gene polymorphisms are significantly associated with H. pylori infection in the Han Chinese from northern China.
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Affiliation(s)
| | - Ziwei Zheng
- College of Laboratory Medicine, Dalian Medical University, Dalian, China
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12
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Kouchek M, Miri MM, Aghakhani K, Memarian A. ABO blood group is related to the prevalence, severity, and mortality rate of COVID-19. MEDICINA CLÍNICA PRÁCTICA 2024; 7:100442. [DOI: 10.1016/j.mcpsp.2024.100442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2025]
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13
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Fathollahi A, Bashizadeh Fakhar H, Shaghaghi B. Relationship between blood group (ABO) and risk of COVID-19 infection in a patient cohort in Tehran, Iran. Access Microbiol 2024; 6:000544.v5. [PMID: 39045258 PMCID: PMC11261716 DOI: 10.1099/acmi.0.000544.v5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 06/13/2024] [Indexed: 07/25/2024] Open
Abstract
Background and purpose. Coronavirus (COVID-19) is a contagious disease causing severe acute respiratory syndrome which had a catastrophic effect on the world population and resulted in more than 2.9 million deaths worldwide. Epidemiological investigations have recently announced blood type has an association with the incidence of COVID-19 infection. Consequently, research in this regard can be effective in determining a person's susceptibility to a viral infection. Therefore, we investigated the relationship between blood types and the risk of COVID-19 in patients admitted to Khorshid laboratory, Tehran, Iran. Materials and methods. From January to March 2020, 50 nasal and throat swapb samples of patients' secretions were obtained from patients who were admitted to Khorshid laboratory. They were confirmed to have COVID-19 virus RNA and real-time polymerase chain reaction (PCR)-ABI, and their blood type was determined simultaneously. After collecting data to determine the relationship between COVID-19 infection and blood type, a confidence interval of 90 % was considered using SPSS 16. Results. The mean age of the patients was measured at 38.4±6.3 years. According to PCR results, 100 % of the subjects with COVID-19 showed blood type A. In addition, the ratio of blood type A to the percentage of reference type O was higher (P=0.009). Conclusion. There was a significant relationship between ABO blood type and susceptibility to COVID-19. As the current study suggests, those with blood type A are at a higher COVID-19 infection risk than those with blood type O.
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Affiliation(s)
- Asal Fathollahi
- Department of Medical Science, Chalus Branch, Islamic Azad University, Chalous, Iran
| | | | - Babak Shaghaghi
- Department of Laboratory Science, Chalous Branch, Islamic Azad University, Chalous, Iran
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14
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Åberg A, Gideonsson P, Bhat A, Ghosh P, Arnqvist A. Molecular insights into the fine-tuning of pH-dependent ArsR-mediated regulation of the SabA adhesin in Helicobacter pylori. Nucleic Acids Res 2024; 52:5572-5595. [PMID: 38499492 PMCID: PMC11162790 DOI: 10.1093/nar/gkae188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 03/20/2024] Open
Abstract
Adaptation to variations in pH is crucial for the ability of Helicobacter pylori to persist in the human stomach. The acid responsive two-component system ArsRS, constitutes the global regulon that responds to acidic conditions, but molecular details of how transcription is affected by the ArsR response regulator remains poorly understood. Using a combination of DNA-binding studies, in vitro transcription assays, and H. pylori mutants, we demonstrate that phosphorylated ArsR (ArsR-P) forms an active protein complex that binds DNA with high specificity in order to affect transcription. Our data showed that DNA topology is key for DNA binding. We found that AT-rich DNA sequences direct ArsR-P to specific sites and that DNA-bending proteins are important for the effect of ArsR-P on transcription regulation. The repression of sabA transcription is mediated by ArsR-P with the support of Hup and is affected by simple sequence repeats located upstream of the sabA promoter. Here stochastic events clearly contribute to the fine-tuning of pH-dependent gene regulation. Our results reveal important molecular aspects for how ArsR-P acts to repress transcription in response to acidic conditions. Such transcriptional control likely mediates shifts in bacterial positioning in the gastric mucus layer.
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Affiliation(s)
- Anna Åberg
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden
| | - Pär Gideonsson
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden
| | - Abhayprasad Bhat
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden
| | - Prachetash Ghosh
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden
| | - Anna Arnqvist
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden
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15
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Wang D, Madunić K, Mayboroda OA, Lageveen-Kammeijer GSM, Wuhrer M. (Sialyl)Lewis Antigen Expression on Glycosphingolipids, N-, and O-Glycans in Colorectal Cancer Cell Lines is Linked to a Colon-Like Differentiation Program. Mol Cell Proteomics 2024; 23:100776. [PMID: 38670309 PMCID: PMC11128521 DOI: 10.1016/j.mcpro.2024.100776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/03/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024] Open
Abstract
Alterations in the glycomic profile are a hallmark of cancer, including colorectal cancer (CRC). While, the glycosylation of glycoproteins and glycolipids has been widely studied for CRC cell lines and tissues, a comprehensive overview of CRC glycomics is still lacking due to the usage of different samples and analytical methods. In this study, we compared glycosylation features of N-, O-glycans, and glycosphingolipid glycans for a set of 22 CRC cell lines, all measured by porous graphitized carbon nano-liquid chromatography-tandem mass spectrometry. An overall, high abundance of (sialyl)Lewis antigens for colon-like cell lines was found, while undifferentiated cell lines showed high expression of H blood group antigens and α2-3/6 sialylation. Moreover, significant associations of glycosylation features were found between the three classes of glycans, such as (sialyl)Lewis and H blood group antigens. Integration of the datasets with transcriptomics data revealed positive correlations between (sialyl)Lewis antigens, the corresponding glycosyltransferase FUT3 and transcription factors CDX1, ETS, HNF1/4A, MECOM, and MYB. This indicates a possible role of these transcription factors in the upregulation of (sialyl)Lewis antigens, particularly on glycosphingolipid glycans, via FUT3/4 expression in colon-like cell lines. In conclusion, our study provides insights into the possible regulation of glycans in CRC and can serve as a guide for the development of diagnostic and therapeutic biomarkers.
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Affiliation(s)
- Di Wang
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands
| | - Katarina Madunić
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands; Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | - Oleg A Mayboroda
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands
| | - Guinevere S M Lageveen-Kammeijer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands; Division of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands.
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16
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Li N, Oh JH, Suh JH, Jin SP, Lee DH, Lee Y, Chung JH. Impact of fucosyltransferase 1-mediated epidermal blood group antigen H on anti-inflammatory response in atopic dermatitis. Front Immunol 2024; 15:1365430. [PMID: 38840912 PMCID: PMC11151169 DOI: 10.3389/fimmu.2024.1365430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 05/07/2024] [Indexed: 06/07/2024] Open
Abstract
The presence of the blood group H2 antigen on the membrane of red blood cells determines blood type O in individuals and this H2 antigen serves as a precursor to the A and B antigens expressed in blood types A and B, respectively. However, the specific involvement of ABH antigens in skin diseases is unknown. Therefore, we aim to investigate the expression of ABH antigens in skin tissue of patients with atopic dermatitis (AD) and MC903-induced AD-like mice. We demonstrated that the expression of ABH antigen is primarily located in the granular and horny layers of the skin in healthy control individuals. However, in patients with AD, the expression of the ABH antigen was absent or diminished in these layers, while the H2 antigen expression increased in the spinous layers of the affected skin lesions. Then, we investigated the biological function of blood group H antigen mediated by fucosyltransferase 1 (Fut1) in the skin, utilizing an AD mouse model induced by MC903 in wild-type (WT) and Fut1-knockout mice. After the application of MC903, Fut1-deficient mice, with no H2 antigen expression on their skin, exhibited more severe clinical signs, increased ear swelling, and elevated serum IgE levels compared with those of WT mice. Additionally, the MC903-induced thickening of both the epidermis and dermis was more pronounced in Fut1-deficient mice than that in WT mice. Furthermore, Fut1-deficient mice showed a significantly higher production of interleukin-4 (IL-4) and IL-6 in skin lesions compared with that of their WT counterparts. The expression of chemokines, particularly Ccl2 and Ccl8, was notably higher in Fut1-deficient mice compared with those of WT mice. The infiltration of CD4+ T cells, eosinophils, and mast cells into the lesional skin was significantly elevated in Fut1-deficient mice compared with that in WT mice. These findings demonstrate the protective role of H2 antigen expression against AD-like inflammation and highlight its potential therapeutic impact on AD through the regulation of blood group antigens.
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Affiliation(s)
- Na Li
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Joong Heon Suh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Seon-Pil Jin
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Dong Hun Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Youngae Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
- Institute on Aging, Seoul National University, Seoul, Republic of Korea
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17
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Sedarat Z, Taylor-Robinson AW. Helicobacter pylori Outer Membrane Proteins and Virulence Factors: Potential Targets for Novel Therapies and Vaccines. Pathogens 2024; 13:392. [PMID: 38787244 PMCID: PMC11124246 DOI: 10.3390/pathogens13050392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/12/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024] Open
Abstract
Helicobacter pylori is a gastric oncopathogen that infects over half of the world's human population. It is a Gram-negative, microaerophilic, helix-shaped bacterium that is equipped with flagella, which provide high motility. Colonization of the stomach is asymptomatic in up to 90% of people but is a recognized risk factor for developing various gastric disorders such as gastric ulcers, gastric cancer and gastritis. Invasion of the human stomach occurs via numerous virulence factors such as CagA and VacA. Similarly, outer membrane proteins (OMPs) play an important role in H. pylori pathogenicity as a means to adapt to the epithelial environment and thereby facilitate infection. While some OMPs are porins, others are adhesins. The epithelial cell receptors SabA, BabA, AlpA, OipA, HopQ and HopZ have been extensively researched to evaluate their epidemiology, structure, role and genes. Moreover, numerous studies have been performed to seek to understand the complex relationship between these factors and gastric diseases. Associations exist between different H. pylori virulence factors, the co-expression of which appears to boost the pathogenicity of the bacterium. Improved knowledge of OMPs is a major step towards combatting this global disease. Here, we provide a current overview of different H. pylori OMPs and discuss their pathogenicity, epidemiology and correlation with various gastric diseases.
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Affiliation(s)
- Zahra Sedarat
- Cellular & Molecular Research Centre, Shahrekord University of Medical Sciences, Shahrekord 8813833435, Iran;
| | - Andrew W. Taylor-Robinson
- College of Health Sciences, VinUniversity, Gia Lam District, Hanoi 67000, Vietnam
- Center for Global Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 1904, USA
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18
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Zhang SZ, Lobo A, Li PF, Zhang YF. Sialylated glycoproteins and sialyltransferases in digestive cancers: Mechanisms, diagnostic biomarkers, and therapeutic targets. Crit Rev Oncol Hematol 2024; 197:104330. [PMID: 38556071 DOI: 10.1016/j.critrevonc.2024.104330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 04/02/2024] Open
Abstract
Sialic acid (SA), as the ultimate epitope of polysaccharides, can act as a cap at the end of polysaccharide chains to prevent their overextension. Sialylation is the enzymatic process of transferring SA residues onto polysaccharides and is catalyzed by a group of enzymes known as sialyltransferases (SiaTs). It is noteworthy that the sialylation level of glycoproteins is significantly altered when digestive cancer occurs. And this alteration exhibits a close correlation with the progression of these cancers. In this review, from the perspective of altered SiaTs expression levels and changed glycoprotein sialylation patterns, we summarize the pathogenesis of gastric cancer (GC), colorectal cancer (CRC), pancreatic ductal adenocarcinoma (PDAC), and hepatocellular carcinoma (HCC). Furthermore, we propose potential early diagnostic biomarkers and prognostic indicators for different digestive cancers. Finally, we summarize the therapeutic value of sialylation in digestive system cancers.
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Affiliation(s)
- Shao-Ze Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Amara Lobo
- Department of Critical Care Medicine Holy Family Hospital, St Andrew's Road, Bandra (West), Mumbai 400050, India
| | - Pei-Feng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China.
| | - Yin-Feng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China.
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Sijmons D, Collett S, Soliman C, Guy AJ, Scott AM, Durrant LG, Elbourne A, Walduck AK, Ramsland PA. Probing the expression and adhesion of glycans involved in Helicobacter pylori infection. Sci Rep 2024; 14:8587. [PMID: 38615147 PMCID: PMC11016089 DOI: 10.1038/s41598-024-59234-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/08/2024] [Indexed: 04/15/2024] Open
Abstract
Helicobacter pylori infects approximately half the human population and has an unusual infective niche of the human stomach. Helicobacter pylori is a major cause of gastritis and has been classified as a group 1 carcinogen by the WHO. Treatment involves triple or quadruple antibiotic therapy, but antibiotic resistance is becoming increasingly prevalent. Helicobacter pylori expresses certain blood group related antigens (Lewis system) as a part of its lipopolysaccharide (LPS), which is thought to assist in immune evasion. Additionally, H. pylori LPS participates in adhesion to host cells alongside several adhesion proteins. This study profiled the carbohydrates of H. pylori reference strains (SS1 and 26695) using monoclonal antibodies (mAbs) and lectins, identifying interactions between two carbohydrate-targeting mAbs and multiple lectins. Atomic force microscopy (AFM) scans were used to probe lectin and antibody interactions with the bacterial surfaces. The selected mAb and lectins displayed an increased adhesive force over the surface of the curved H. pylori rods. Furthermore, this study demonstrates the ability of anti-carbohydrate antibodies to reduce the adhesion of H. pylori 26695 to human gastric adenocarcinoma cells via AFM. Targeting bacterial carbohydrates to disrupt crucial adhesion and immune evasion mechanisms represents a promising strategy for combating H. pylori infection.
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Affiliation(s)
- Daniel Sijmons
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Simon Collett
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Caroline Soliman
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3000, Australia
| | - Andrew J Guy
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- ZiP Diagnostics, Collingwood, VIC, 3066, Australia
| | - Andrew M Scott
- Olivia Newton-John Cancer Research Institute and School of Cancer Medicine, La Trobe University, Melbourne, VIC, Australia
- Department of Molecular Imaging and Therapy, Austin Health and Faculty of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Lindy G Durrant
- Scancell Limited, University of Nottingham Biodiscovery Institute, Nottingham, UK
- Division of Cancer and Stem Cells, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Aaron Elbourne
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Anna K Walduck
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
- Rural Health Research Institute, Charles Sturt University, Orange, NSW, 2800, Australia.
| | - Paul A Ramsland
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
- Department of Immunology, Monash University, Melbourne, VIC, 3004, Australia.
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, VIC, 3084, Australia.
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20
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Guzmán J, Castillo D, González-Siccha AD, Bussalleu A, Trespalacios-Rangel AA, Lescano AG, Sauvain M. Helicobacter pylori cagA, vacA, iceA and babA Genotypes from Peruvian Patients with Gastric Intestinal Metaplasia. Cancers (Basel) 2024; 16:1476. [PMID: 38672558 PMCID: PMC11047899 DOI: 10.3390/cancers16081476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/10/2024] [Accepted: 03/13/2024] [Indexed: 04/28/2024] Open
Abstract
We explored the clinical-stage association of gastric intestinal metaplasia (IM) compared to cases of chronic non-atrophic gastritis (CNAG) and its relationship with virulence genotypes of Helicobacter pylori (H. pylori) clinical isolates from patients with dyspepsia in Peru. This study was cross-sectional and included 158 H. pylori clinical isolates; each isolate corresponded to a different Peruvian patient, genotyped by polymerase chain reaction to detect cagA gene and EPIYA motifs, the vacA gene (alleles s1, s2, i1, i2, d1, d2, m1, m2 and subtypes s1a, s1b and s1c), the iceA gene (alleles 1 and 2), and the babA gene (allele 2). We observed that 38.6% presented with IM and that all clinical isolates were CagA positive. The EPIYA-ABC motif was predominant (68.4%), and we observed a high frequency for the vacA gene alleles s1 (94.9%), m1 (81.7%), i1 (63.9%), and d1 (70.9%). Strains with both iceA alleles were also detected (69.6%) and 52.2% were babA2 positive. In addition, it was observed that the cagA+/vacAs1m1 (PR: 2.42, 1.14 to 5.13, p < 0.05) and cagA+/vacAs1am1 (PR: 1.67, 1.13 to 2.45, p < 0.01) genotypes were associated with IM. Our findings revealed the cagA and vacA risk genotypes predominance, and we provided clinically relevant associations between Peruvian patients with H. pylori infection and IM clinical stage.
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Affiliation(s)
- Jesús Guzmán
- Laboratorio Centinela de Helicobacter pylori, Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima 15024, Peru; (D.C.); (A.B.); (M.S.)
- Facultad de Salud Pública y Administración, Universidad Peruana Cayetano Heredia, Lima 15102, Peru;
| | - Denis Castillo
- Laboratorio Centinela de Helicobacter pylori, Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima 15024, Peru; (D.C.); (A.B.); (M.S.)
| | - Anabel D. González-Siccha
- Departamento de Bioquímica, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru;
| | - Alejandro Bussalleu
- Laboratorio Centinela de Helicobacter pylori, Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima 15024, Peru; (D.C.); (A.B.); (M.S.)
| | - Alba A. Trespalacios-Rangel
- Grupo de Investigación en Enfermedades Infecciosas, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia;
| | - Andres G. Lescano
- Facultad de Salud Pública y Administración, Universidad Peruana Cayetano Heredia, Lima 15102, Peru;
| | - Michel Sauvain
- Laboratorio Centinela de Helicobacter pylori, Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima 15024, Peru; (D.C.); (A.B.); (M.S.)
- UMR 152 Pharmacochimie et Biologie pour le Développement (PHARMA-DEV), Institut de Recherche pour le Développement (IRD), Université de Toulouse, CEDEX 9, 31062 Toulouse, France
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21
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Dyankov G, Eftimov T, Hikova E, Najdenski H, Kussovski V, Genova-Kalou P, Mankov V, Kisov H, Veselinov P, Ghaffari SS, Kovacheva-Slavova M, Vladimirov B, Malinowski N. SPR and Double Resonance LPG Biosensors for Helicobacter pylori BabA Antigen Detection. SENSORS (BASEL, SWITZERLAND) 2024; 24:2118. [PMID: 38610328 PMCID: PMC11014364 DOI: 10.3390/s24072118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/14/2024] [Accepted: 03/24/2024] [Indexed: 04/14/2024]
Abstract
Given the medical and social significance of Helicobacter pylori infection, timely and reliable diagnosis of the disease is required. The traditional invasive and non-invasive conventional diagnostic techniques have several limitations. Recently, opportunities for new diagnostic methods have appeared based on the recent advance in the study of H. pylori outer membrane proteins and their identified receptors. In the present study we assess the way in which outer membrane protein-cell receptor reactions are applicable in establishing a reliable diagnosis. Herein, as well as in other previous studies of ours, we explore the reliability of the binding reaction between the best characterized H. pylori adhesin BabA and its receptor, the blood antigen Leb. For the purpose we developed surface plasmon resonance (SPR) and double resonance long period grating (DR LPG) biosensors based on the BabA-Leb binding reaction for diagnosing H. pylori infection. In SPR detection, the sensitivity was estimated at 3000 CFU/mL-a much higher sensitivity than that of the RUT test. The DR LPG biosensor proved to be superior in terms of accuracy and sensitivity-concentrations as low as 102 CFU/mL were detected.
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Affiliation(s)
- Georgi Dyankov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
| | - Tinko Eftimov
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
- Photonics Research Center, Université du Québec en Outaouais, Rue 101 St-Jean Bosco, Gatineau, QC J8X 3G5, Canada;
| | - Evdokiya Hikova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Hristo Najdenski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (H.N.); (V.K.)
| | - Vesselin Kussovski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (H.N.); (V.K.)
| | - Petia Genova-Kalou
- National Center of Infectious and Parasitic Diseases, 44A “Gen. Stoletov” Blvd., 1233 Sofia, Bulgaria;
| | - Vihar Mankov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Hristo Kisov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
- Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61 Sankt Petersburg Blvd., 4000 Plovdiv, Bulgaria;
| | - Petar Veselinov
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
| | - Sanaz Shoar Ghaffari
- Photonics Research Center, Université du Québec en Outaouais, Rue 101 St-Jean Bosco, Gatineau, QC J8X 3G5, Canada;
- Department of Electrical and Computer Engineering, University of Alberta, 116 St & 85 Ave, Edmonton, AB T6G 2R3, Canada
| | - Mila Kovacheva-Slavova
- Department of Gastroenterology, University Hospital Tsaritsa Ioanna-ISUL, Medical University Sofia, 8 “Byalo More” Str., 1527 Sofia, Bulgaria; (M.K.-S.); (B.V.)
| | - Borislav Vladimirov
- Department of Gastroenterology, University Hospital Tsaritsa Ioanna-ISUL, Medical University Sofia, 8 “Byalo More” Str., 1527 Sofia, Bulgaria; (M.K.-S.); (B.V.)
| | - Nikola Malinowski
- Institute of Optical Materials and Technologies “Acad. J. Malinowski” (IOMT), Bulgarian Academy of Sciences (BAS), 109 “Acad. G. Bonchev” Str., 1113 Sofia, Bulgaria; (G.D.); (V.M.); (H.K.); (P.V.); (N.M.)
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22
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Malfertheiner P, Schulz C, Hunt RH. Helicobacter pylori Infection: A 40-Year Journey through Shifting the Paradigm to Transforming the Management. Dig Dis 2024; 42:299-308. [PMID: 38447558 DOI: 10.1159/000538079] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/26/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) was discovered 40 years ago and has set a milestone in human medicine. The discovery led to rejection of the dogma of the acidic stomach as a sterile organ and requested to rewrite the chapters on gastric pathophysiology and gastroduodenal diseases. SUMMARY Over a period of 40 years following the discovery, more than 50,000 articles can be retrieved in PubMed as of today and illustrate the amount and the intensity of research around the role of this bacterium. H. pylori emerged as cause of chronic gastritis and principal cause of peptic ulcer disease (PUD). Eradication of H. pylori became standard of care in management in PUD. The importance of this was highlighted in 2005 with the Nobel Prize in Medicine awarded to Barry Marshall and Robin Warren. H. pylori became eventually recognized for its oncogenic potential in the stomach and as the main risk factor for gastric cancer development. KEY MESSAGES H. pylori gastritis is defined as infectious disease and requires therapy in all infected individuals. Strategies of gastric cancer prevention and development of therapies to overcome the increasing antibiotic resistance are main targets in clinical research of today.
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Affiliation(s)
- Peter Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Medical Department 2, LMU, Munich, Germany
| | - Christian Schulz
- Medical Department 2, LMU, Munich, Germany,
- Partner Site Munich, DZIF, Braunschweig, Germany,
| | - Richard H Hunt
- Farncombe Family Digestive Health Research Institute and Division of Gastroenterology, Department of Medicine, McMaster University Faculty of Health Sciences, Hamilton, Ontario, Canada
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23
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Feng Z, Li H, Hao Y, Peng C, Ou L, Jia J, Xun M, Zou Y, Chen M, Zhang G, Yao M. In vitro anti- Helicobacter pylori activity and the underlining mechanism of an empirical herbal formula - Hezi Qingyou. Front Microbiol 2024; 15:1355460. [PMID: 38440143 PMCID: PMC10910045 DOI: 10.3389/fmicb.2024.1355460] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Background Helicobacter pylori (H. pylori) is thought to primarily colonize the human stomach and lead to various gastrointestinal disorders, such as gastritis and gastric cancer. Currently, main eradication treatment is triple or quadruple therapy centered on antibiotics. Due to antibiotic resistance, the eradication rate of H. pylori is decreasing gradually. Therefore, searching for anti-H. pylori drugs from herbal sources has become a strategy for the treatment. Our team proposed a Hezi Qingyou Formula (HZQYF), composed of Chebulae Fructus, Ficus hirta Vahl and Cloves, and studied its anti-H. pylori activity and mechanism. Methods Chemical components of HZQYF were studied using UHPLC-MS/MS and HPLC. Broth microdilution method and agar dilution method were used to evaluate HZQYF's antibacterial activity. The effects of HZQYF on expression of adhesion genes (alpA, alpB, babA), urease genes (ureE, ureF), and flagellar genes (flaA, flaB) were explored using Reverse Transcription-quantitative Polymerase Chain Reaction (RT-qPCR) technology. Effects on morphology and permeability of the extracellular membrane were studied using scanning electron microscopy (SEM) and N-phenylnaphthalen-1-amine (NPN) uptake. Effect on urease activity was studied using a urease kinetics analysis in vitro. Immunofluorescence staining method was used to examine the effect on adhesion. Western blot was used to examine the effect on cagA protein. Results Minimum inhibitory concentration (MIC) values of the formula against H. pylori clinical strains and standard strains were 80-160 μg/mL, and minimum bactericidal concentration (MBC) values were 160-320 μg/mL. The formula could down-regulate the expression of adhesion genes (alpA, alpB, babA), urease genes (ureE, ureF) and flagellar genes (flaA, flaB), change the morphology of H. pylori, increase its extracellular membrane permeability, and decrease its urease activity. Conclusion Present studies confirmed that HZQYF had promising in vitro anti-H. pylori activities and demonstrated its possible mechanism of action by down-regulating the bacterial adhesion, urease, and flagellar gene expression, which provided scientific bases for further clinical investigations.
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Affiliation(s)
- Zhong Feng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Hui Li
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Yajie Hao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Chang Peng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
| | - Ling Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
| | - Junwei Jia
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Mingjin Xun
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Yuanjing Zou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
| | - Meiyun Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
| | - Guimin Zhang
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
- International Pharmaceutical Engineering Laboratory in Shandong Province, Shandong New Time Pharmaceutical Co., Ltd., Linyi, China
| | - Meicun Yao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
- Nanchang Research Institute, Sun Yat-sen University, Jiangxi, China
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24
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Al Bshabshe A, Alqahtani M, Amer KA, Al-Jahash NA, Thwab AS, Alshahrani FS, Saad Aldarani Alshahrani A, Asiri OA, Abughazalah FN, Khuzayyim AAA, Altumaihi F, Khawaji T, Algaide A, Almontasheri M. The Relationship of ABO and Rh Blood Group Types With Severe COVID-19 Disease Mortality in ICU Patients: Insights From a Single-Center Experience in Southern Saudi Arabia. Cureus 2023; 15:e50935. [PMID: 38249239 PMCID: PMC10800029 DOI: 10.7759/cureus.50935] [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] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction The global COVID-19 pandemic has triggered an unprecedented public health crisis, emphasizing the need to understand factors influencing disease outcomes. This study explores the role of genetic variations in blood group antigens, particularly ABO and RhD, in shaping mortality rates among critically ill COVID-19 patients in the southern region of Saudi Arabia. Methods Utilizing a retrospective, noninterventional approach, we analyzed medical records of 594 COVID-19 patients admitted to the intensive care unit (ICU) at Aseer Central Hospital from August 2020 to April 2021. The cohort, with a mean age of 60.5 years, consisted of a predominantly male population. Results The study encompassed a diverse age range of 18 to 103 years, with a mean age of 60.5 ± 17.3 years. Of the 594 patients, 398 (67%) were male, and only 5 (0.8%) had a history of smoking. Blood group distribution revealed 275 (48.4%) with O-, 189 (33.3%) with A+, and 51 (9%) with AB- types. Predominant chronic conditions included diabetes mellitus (35.5%). Tragically, 320 patients (54.6%) experienced mortality, with a 100% mortality rate for the B+ blood group and 92.9% for O- blood group. Conclusion This analysis establishes significant statistical links, underscoring the pivotal role of blood type, particularly the Rh factor, in influencing mortality risk among critically ill COVID-19 patients. These findings contribute valuable insights into risk stratification and personalized care for severe cases, emphasizing the importance of genetic considerations in understanding disease outcomes.
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Affiliation(s)
| | - Mushary Alqahtani
- Internal Medicine, Armed Forces Hospitals Southern Region, Khamis Mushait, SAU
| | - Khaled A Amer
- Medicine and Surgery, King Khalid University, Abha, SAU
| | | | | | | | | | | | | | | | | | - Turki Khawaji
- Intensive Care Unit, King Fahad General Hospital, Jeddah, SAU
| | - Ayman Algaide
- Intensive Care Unit, King Fahad General Hospital, Jeddah, SAU
| | - Moyed Almontasheri
- Internal Medicine, Armed Forces Hospitals Southern Region, Khamis Mushait, SAU
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25
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Gonciarz W, Chyb M, Chmiela M. Diminishing of Helicobacter pylori adhesion to Cavia porcellus gastric epithelial cells by BCG vaccine mycobacteria. Sci Rep 2023; 13:16305. [PMID: 37770504 PMCID: PMC10539345 DOI: 10.1038/s41598-023-43571-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023] Open
Abstract
Mycobacterium bovis onco-BCG bacilli used in immunotherapy of bladder cancer are candidates for training of immune cells towards microbial pathogens. Increasing antibiotic resistance of gastric pathogen Helicobacter pylori (Hp) prompts the search for new anti-Hp and immunomodulatory formulations. Colonization of gastric mucosa by Hp through mucin 5 AC (MUC5AC) ligands could potentially be a therapeutic target. The aim of this study was to examine the ability of onco-BCG mycobacteria to reduce Hp adhesion to gastric epithelial cells using Cavia porcellus model. Animals were inoculated per os with 0.85% NaCl, Hp alone, onco-BCG alone or with onco-BCG and Hp. After 7/28 days Mucin5AC and Hp binding to gastric epithelium were assessed in gastric tissue specimens by staining with anti-Mucin5AC and anti-Hp antibodies, respectively, both fluorescently labeled. Primary gastric epithelial cells were treated ex vivo with live Hp or Hp surface antigens (glycine extract or lipopolysaccharide) alone or with onco-BCG. In such cells MUC5AC and Hp binding were determined as above. Mycobacteria reduced the amount of MUC5AC animals infected with Hp and in gastric epithelial cells pulsed in vitro with Hp components. Decrease of MUC5AC driven in cell cultures in vitro and in gastric tissue exposed ex vivo to mycobacteria was related to diminished adhesion of H. pylori bacilli. Vaccine mycobacteria by diminishing the amount of MUC5AC in gastric epithelial cells may reduce Hp adhesion.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12-16, 90-237, Lodz, Poland.
| | - Maciej Chyb
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Lodz, Poland
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12-16, 90-237, Lodz, Poland.
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26
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Almorish MA, Al-Absi B, Elkhalifa AME, Elamin E, Elderdery AY, Alhamidi AH. ABO, Lewis blood group systems and secretory status with H.pylori infection in yemeni dyspeptic patients: a cross- sectional study. BMC Infect Dis 2023; 23:520. [PMID: 37553651 PMCID: PMC10408178 DOI: 10.1186/s12879-023-08496-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND The ABO and Lewis blood group antigens are potential factors in susceptibility to H. pylori infection. This research aimed to examine the prevalence of Helicobater pylori (H.pylori) infection and its association with ABO, Lewis blood group systems, and secretory status in Yemeni symptomatic patients. METHODS In a cross-sectional study, 103 patients referred for endoscopy due to dyspepsia were included. H pylori infection was assessed using stool antigen and serum antibody rapid tests. ABO and Lewis blood group systems were examined using hemagglutination assay. Saliva samples were investigated for identification of the secretory phenotype using hemagglutination inhibition test. RESULTS The prevalence of H. pylori infection was (80.6%), with a higher rate of infection in females than males. The ABO blood groups were found to be significantly different between males and females (p = 0.047). The O blood group was prevalent among H. pylori patients, especially secretors. There was a significant association between ABO blood groups and H. pylori infection (p = 0.001). The Le (a + b+) phenotype was the most common, followed by Le (a + b-), Le (a-b+), and Le (a-b-). Lewis blood group systems and secretory status of symptomatic patients were not associated with H. pylori infection. The results showed that serum Ab test for H. pylori achieved poor sensitivity (68%), specificity of 55%; positive predictive value (PPV) 86%, negative predictive value (NPV) 29% and accuracy 65.1%. CONCLUSION The prevalence of H. pylori infection was high in Yemeni patients. This infection was linked to the O and Le (a + b+) secretor phenotype. The H. pylori stool Ag test is the most reliable noninvasive diagnostic method for detecting H. pylori infection.
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Affiliation(s)
| | - Boshra Al-Absi
- Department of Hematology, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
| | - Ahmed M E Elkhalifa
- Public Heath Department, College of Health Sciences, Saudi Electronic University, Riyadh, Saudi Arabia
- Department of Hematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosti, 1158, Sudan
| | - Elham Elamin
- Department of Hematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosti, 1158, Sudan
| | - Abozer Y Elderdery
- Department of Clinical Laboratory Sciences, College of Applied Medical Science, Jouf University, Sakaka, Saudi Arabia
| | - Abdulaziz H Alhamidi
- Clinical Laboratory Sciences Department, College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia
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27
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Ghorashi AC, Boucher A, Archer-Hartmann SA, Murray NB, Konada RSR, Zhang X, Xing C, Azadi P, Yrlid U, Kohler JJ. Fucosylated glycoproteins and fucosylated glycolipids play opposing roles in cholera intoxication. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.02.551727. [PMID: 37577488 PMCID: PMC10418270 DOI: 10.1101/2023.08.02.551727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Cholera toxin (CT) is the etiological agent of cholera. Here we report that multiple classes of fucosylated glycoconjugates function in CT binding and intoxication of intestinal epithelial cells. In Colo205 cells, knockout of B3GNT5, the enzyme required for synthesis of lacto- and neolacto-series glycosphingolipids (GSLs), reduces CT binding but sensitizes cells to intoxication. Overexpressing B3GNT5 to generate more fucosylated GSLs confers protection against intoxication, indicating that fucosylated GSLs act as decoy receptors for CT. Knockout (KO) of B3GALT5 causes increased production of fucosylated O-linked and N-linked glycoproteins, and leads to increased CT binding and intoxication. Knockout of B3GNT5 in B3GALT5 KO cells eliminates production of fucosylated GSLs but increases intoxication, identifying fucosylated glycoproteins as functional receptors for CT. These findings provide insight into molecular determinants regulating CT sensitivity of host cells.
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Affiliation(s)
- Atossa C. Ghorashi
- Department of Biochemistry, UT Southwestern Medical Center, Dallas TX 75390 USA
| | - Andrew Boucher
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | | | - Nathan B. Murray
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
| | | | - Xunzhi Zhang
- McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas TX 75390 USA
| | - Chao Xing
- McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas TX 75390 USA
- Department of Bioinformatics, UT Southwestern Medical Center, Dallas TX 75390 USA
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
| | - Ulf Yrlid
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Jennifer J. Kohler
- Department of Biochemistry, UT Southwestern Medical Center, Dallas TX 75390 USA
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28
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Bugaytsova JA, Piddubnyi A, Tkachenko I, Rakhimova L, Edlund JO, Thorell K, Marcotte H, Lundquist A, Schön K, Lycke N, Suerbaum S, Schulz C, Malfertheiner P, Hansen LM, Solnick JV, Moskalenko R, Hammarström L, Borén T. Vaccination with Helicobacter pylori attachment proteins protects against gastric cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.25.542131. [PMID: 37461695 PMCID: PMC10349987 DOI: 10.1101/2023.05.25.542131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Most cases of gastric cancer are caused by chronic Helicobacter pylori infection, but the lack of early onco-diagnostics and a high risk for antibiotic resistance hampers early intervention through eradication of H. pylori infection by antibiotics. We reported on a protective mechanism where H. pylori gastric mucosal attachment can be reduced by natural antibodies that block the binding of its attachment protein BabA. Here we show that challenge infection with H. pylori induced response of such blocking antibodies in both human volunteers and in rhesus macaques, that mucosal vaccination with BabA protein antigen induced blocking antibodies in rhesus macaques, and that vaccination in a mouse model induced blocking antibodies that reduced gastric mucosal inflammation, preserved the gastric juice acidity, and fully protected the mice from gastric cancer caused by H. pylori.
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Affiliation(s)
- Jeanna A. Bugaytsova
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
| | - Artem Piddubnyi
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Department of Pathology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Iryna Tkachenko
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Lena Rakhimova
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Present address: Department of Odontology, Umea University, SE90187 Umeå, Sweden
| | - Johan Olofsson Edlund
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- The Biochemical Imaging Center Umeå (BICU), Umeå University, SE90187 Umeå, Sweden
| | - Kaisa Thorell
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE40530, Gothenburg, Sweden
| | - Harold Marcotte
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, SE14183, Huddinge, Sweden
| | - Anders Lundquist
- Department of Statistics, USBE, Umeå University, SE90187 Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, SE90187 Umeå, Sweden
| | - Karin Schön
- Department of Microbiology & Immunology, University of Gothenburg, Gothenburg, Sweden
| | - Nils Lycke
- Department of Microbiology & Immunology, University of Gothenburg, Gothenburg, Sweden
- Deceased, December 2022
| | - Sebastian Suerbaum
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, 30625 Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Site, 30625 Hannover, Germany
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, LMU Munich, 80336 Munich, Germany
- German Center for Infection Research (DZIF), Munich Site, 80336 Munich, Germany
| | - Christian Schulz
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - Lori M. Hansen
- Departments of Medicine and Microbiology and Immunology, Center for Immunology and Infectious Disease, University of California Davis, Davis, CA 95616, USA
| | - Jay V. Solnick
- Departments of Medicine and Microbiology and Immunology, Center for Immunology and Infectious Disease, University of California Davis, Davis, CA 95616, USA
- California National Primate Research Center, University of California Davis School of Medicine, Davis, CA 95616, USA
| | - Roman Moskalenko
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Department of Pathology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Lennart Hammarström
- Department of Biosciences and Nutrition, Karolinska Institutet, SE14183, Huddinge, Sweden
| | - Thomas Borén
- Department Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Lead contact
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29
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Su L, Cao Y, Liu Y, Zhang J, Zhang G. Analysis of Clinical Characteristics and Blood Cell in Adult Patients with Brucella Bloodstream Infection of Different Blood Groups. Indian J Hematol Blood Transfus 2023; 39:429-434. [PMID: 37304470 PMCID: PMC10247920 DOI: 10.1007/s12288-022-01617-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
The clinical manifestations and blood cell varied among patients with Brucella bloodstream infection. This study aimed to explore the clinical characteristics and blood cells of adult Brucella bloodstream infection patients with different ABO blood groups. This study retrospectively analyzed 77 adult Brucella bloodstream infection patients. Demographic characteristics, clinical manifestations, laboratory data, and blood cell differences of adult Brucella bloodstream infection patients were analyzed. For Brucella bloodstream infection patients, the blood group was distributed as: B > O > A > AB. The main symptoms of the patients were fever (94.81%), and 56 patients (72.70%) were complicated with liver injury. The highest proportion of liver injury was 93.33% in patients with blood group A and 52.38% in blood group O (P < 0.05). There were 19 cases (24.68%) with spondylitis, 30 cases (38.96%) with anemia, 28 (36.36%) with leukopenia, 16 (20.78%) with thrombocytopenia, without notable differences between different blood groups (P > 0.05). The proportion of lymphocytes in patients with the AB blood group was the highest (39.46 ± 11.21), and in patients with the B blood group was the lowest (28.00 ± 12.10), with significant difference between different blood groups (P < 0.05). Patients with Brucella bloodstream infection with blood group A were more prone to liver injury than those with blood group O. More attention should be paid to liver injury when receiving patients with blood group A. The proportion of lymphocytes in patients with blood group B and AB was different, suggesting that they may have different immune states.
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Affiliation(s)
- Li Su
- Department of Infectious Diseases, Affiliated Hospital of Chengde Medical College, No. 36, Nanyingzi Street, Chengde City, 067000 China
| | - Yawen Cao
- Department of Geriatrics, Affiliated Hospital of Chengde Medical College, Hebei, 067000 China
| | - Yaomin Liu
- Department of Infectious Diseases, Affiliated Hospital of Chengde Medical College, No. 36, Nanyingzi Street, Chengde City, 067000 China
| | - Jianhua Zhang
- Department of Infectious Diseases, Affiliated Hospital of Chengde Medical College, No. 36, Nanyingzi Street, Chengde City, 067000 China
| | - Guomin Zhang
- Department of Infectious Diseases, Affiliated Hospital of Chengde Medical College, No. 36, Nanyingzi Street, Chengde City, 067000 China
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30
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Häupl T, Sörensen T, Smiljanovic B, Darcy M, Scheder-Bieschin J, Steckhan N, Hartmann AM, Koppold DA, Stuhlmüller B, Skriner K, Walewska BM, Hoppe B, Bonin M, Burmester GR, Schendel P, Feist E, Liere K, Meixner M, Kessler C, Grützkau A, Michalsen A. Intestinal Microbiota Reduction Followed by Fasting Discloses Microbial Triggering of Inflammation in Rheumatoid Arthritis. J Clin Med 2023; 12:4359. [PMID: 37445394 DOI: 10.3390/jcm12134359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023] Open
Abstract
Rheumatoid arthritis (RA) synovitis is dominated by monocytes/macrophages with inflammatory patterns resembling microbial stimulation. In search of triggers, we reduced the intestinal microbiome in 20 RA patients (open label study DRKS00014097) by bowel cleansing and 7-day fasting (≤250 kcal/day) and performed immune monitoring and microbiome sequencing. Patients with metabolic syndrome (n = 10) served as a non-inflammatory control group. Scores of disease activity (DAS28/SDAI) declined within a few days and were improved in 19 of 20 RA patients after breaking the fast (median ∆DAS28 = -1.23; ∆SDAI = -43%) or even achieved remission (DAS28 < 2.6/n = 6; SDAI < 3.3/n = 3). Cytometric profiling with 46 different surface markers revealed the most pronounced phenomenon in RA to be an initially increased monocyte turnover, which improved within a few days after microbiota reduction and fasting. Serum levels of IL-6 and zonulin, an indicator of mucosal barrier disruption, decreased significantly. Endogenous cortisol levels increased during fasting but were insufficient to explain the marked improvement. Sequencing of the intestinal microbiota indicated that fasting reduced potentially arthritogenic bacteria and changed the microbial composition to species with broader metabolic capabilities. More eukaryotic, predominantly fungal colonizers were observed in RA, suggesting possible involvement. This study demonstrates a direct link between the intestinal microbiota and RA-specific inflammation that could be etiologically relevant and would support targeted nutritional interventions against gut dysbiosis as a causal therapeutic approach.
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Affiliation(s)
- Thomas Häupl
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Rheumatology, Helios Fachklinik Vogelsang-Gommern GmbH, 39245 Gommern, Germany
| | - Till Sörensen
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Biljana Smiljanovic
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Marine Darcy
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Justus Scheder-Bieschin
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Nico Steckhan
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Anika M Hartmann
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Daniela A Koppold
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
- Department of Pediatrics, Division of Oncology and Hematology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Berlin and Berlin Institute of Health, 10117 Berlin, Germany
| | - Bruno Stuhlmüller
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Karl Skriner
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Barbara M Walewska
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Berthold Hoppe
- Institute of Laboratory Medicine, Unfallkrankenhaus Berlin, 12683 Berlin, Germany
| | - Marc Bonin
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Gerd R Burmester
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Pascal Schendel
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
| | - Eugen Feist
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Rheumatology, Helios Fachklinik Vogelsang-Gommern GmbH, 39245 Gommern, Germany
| | - Karsten Liere
- Amedes Genetics, 10117 Berlin, Germany
- Services in Molecular Biology GmbH, 10115 Rüdersdorf, Germany
| | - Martin Meixner
- Amedes Genetics, 10117 Berlin, Germany
- Services in Molecular Biology GmbH, 10115 Rüdersdorf, Germany
| | - Christian Kessler
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
| | | | - Andreas Michalsen
- Institute of Social Medicine, Epidemiology and Health Economics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, 10117 Berlin, Germany
- Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, 14109 Berlin, Germany
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31
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Packer RJ, Shrine N, Hall R, Melbourne CA, Thompson R, Williams AT, Paynton ML, Guyatt AL, Allen RJ, Lee PH, John C, Campbell A, Hayward C, de Vries M, Vonk JM, Davitte J, Hessel E, Michalovich D, Betts JC, Sayers I, Yeo A, Hall IP, Tobin MD, Wain LV. Genome-wide association study of chronic sputum production implicates loci involved in mucus production and infection. Eur Respir J 2023; 61:2201667. [PMID: 37263751 PMCID: PMC10284065 DOI: 10.1183/13993003.01667-2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/17/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Chronic sputum production impacts on quality of life and is a feature of many respiratory diseases. Identification of the genetic variants associated with chronic sputum production in a disease agnostic sample could improve understanding of its causes and identify new molecular targets for treatment. METHODS We conducted a genome-wide association study (GWAS) of chronic sputum production in UK Biobank. Signals meeting genome-wide significance (p<5×10-8) were investigated in additional independent studies, were fine-mapped and putative causal genes identified by gene expression analysis. GWASs of respiratory traits were interrogated to identify whether the signals were driven by existing respiratory disease among the cases and variants were further investigated for wider pleiotropic effects using phenome-wide association studies (PheWASs). RESULTS From a GWAS of 9714 cases and 48 471 controls, we identified six novel genome-wide significant signals for chronic sputum production including signals in the human leukocyte antigen (HLA) locus, chromosome 11 mucin locus (containing MUC2, MUC5AC and MUC5B) and FUT2 locus. The four common variant associations were supported by independent studies with a combined sample size of up to 2203 cases and 17 627 controls. The mucin locus signal had previously been reported for association with moderate-to-severe asthma. The HLA signal was fine-mapped to an amino acid change of threonine to arginine (frequency 36.8%) in HLA-DRB1 (HLA-DRB1*03:147). The signal near FUT2 was associated with expression of several genes including FUT2, for which the direction of effect was tissue dependent. Our PheWAS identified a wide range of associations including blood cell traits, liver biomarkers, infections, gastrointestinal and thyroid-associated diseases, and respiratory disease. CONCLUSIONS Novel signals at the FUT2 and mucin loci suggest that mucin fucosylation may be a driver of chronic sputum production even in the absence of diagnosed respiratory disease and provide genetic support for this pathway as a target for therapeutic intervention.
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Affiliation(s)
- Richard J Packer
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Nick Shrine
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Robert Hall
- Centre for Respiratory Research, NIHR Nottingham Biomedical Research Centre, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Carl A Melbourne
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Rebecca Thompson
- Centre for Respiratory Research, NIHR Nottingham Biomedical Research Centre, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Alex T Williams
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Megan L Paynton
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Anna L Guyatt
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Richard J Allen
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Paul H Lee
- Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Catherine John
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Archie Campbell
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Caroline Hayward
- Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Maaike de Vries
- University of Groningen, University Medical Center Groningen, Department of Epidemiology and Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Judith M Vonk
- University of Groningen, University Medical Center Groningen, Department of Epidemiology and Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | | | | | | | | | - Ian Sayers
- Centre for Respiratory Research, NIHR Nottingham Biomedical Research Centre, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | | | - Ian P Hall
- Centre for Respiratory Research, NIHR Nottingham Biomedical Research Centre, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Martin D Tobin
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Louise V Wain
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
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32
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Bugaytsova JA, Moonens K, Piddubnyi A, Schmidt A, Edlund JO, Lisiutin G, Brännström K, Chernov YA, Thorel K, Tkachenko I, Sharova O, Vikhrova I, Butsyk A, Shubin P, Chyzhma R, Johansson DX, Marcotte H, Sjöström R, Shevtsova A, Bylund G, Rakhimova L, Lundquist A, Berhilevych O, Kasianchuk V, Loboda A, Ivanytsia V, Hultenby K, Persson MAA, Gomes J, Matos R, Gartner F, Reis CA, Whitmire JM, Merrell DS, Pan-Hammarström Q, Landström M, Oscarson S, D’Elios MM, Agreus L, Ronkainen J, Aro P, Engstrand L, Graham DY, Kachkovska V, Mukhopadhyay A, Chaudhuri S, Karmakar BC, Paul S, Kravets O, Camorlinga M, Torres J, Berg DE, Moskalenko R, Haas R, Remaut H, Hammarström L, Borén T. Helicobacter pylori attachment-blocking antibodies protect against duodenal ulcer disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.24.542096. [PMID: 37292721 PMCID: PMC10245814 DOI: 10.1101/2023.05.24.542096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The majority of the world population carry the gastric pathogen Helicobacter pylori. Fortunately, most individuals experience only low-grade or no symptoms, but in many cases the chronic inflammatory infection develops into severe gastric disease, including duodenal ulcer disease and gastric cancer. Here we report on a protective mechanism where H. pylori attachment and accompanying chronic mucosal inflammation can be reduced by antibodies that are present in a vast majority of H. pylori carriers. These antibodies block binding of the H. pylori attachment protein BabA by mimicking BabA's binding to the ABO blood group glycans in the gastric mucosa. However, many individuals demonstrate low titers of BabA blocking antibodies, which is associated with an increased risk for duodenal ulceration, suggesting a role for these antibodies in preventing gastric disease.
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Affiliation(s)
- Jeanna A. Bugaytsova
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
| | - Kristof Moonens
- Structural and Molecular Microbiology, VIB Department of Structural Biology, VIB, 1050 Brussels, Belgium
- Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
- Present address: Ablynx, a Sanofi Company, Technologiepark 21, 9052 Zwijnaarde, Belgium
| | - Artem Piddubnyi
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Department of Pathology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Alexej Schmidt
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Division of Clinical Immunology and Transfusion Medicine, Karolinska Institutet at Karolinska University Hospital, SE14186 Huddinge, Sweden
- Present address: Department of Medical Biosciences, Umeå University, SE90185 Umeå, Sweden
| | - Johan Olofsson Edlund
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- The Biochemical Imaging Center Umeå (BICU), Umeå University, SE90187 Umeå, Sweden
| | - Gennadii Lisiutin
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Microbiology, Virology and Biotechnology, Odesa Mechnikov National University, 65082 Odesa, Ukraine
| | - Kristoffer Brännström
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- The Biochemical Imaging Center Umeå (BICU), Umeå University, SE90187 Umeå, Sweden
- Present address: Pfizer Worldwide R&D, BioMedicine Design, 10 555 Science Center Drive, San Diego CA, 92121 USA
| | - Yevgen A. Chernov
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
| | - Kaisa Thorel
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Iryna Tkachenko
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Oleksandra Sharova
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Pediatrics, Medical Institute, Sumy State University, 40018 Sumy, Ukraine
| | - Iryna Vikhrova
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Pediatrics, Medical Institute, Sumy State University, 40018 Sumy, Ukraine
| | - Anna Butsyk
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Pavlo Shubin
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Ruslana Chyzhma
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Department of Pathology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Daniel X. Johansson
- Department of Clinical Neuroscience, Karolinska Institutet at Center for Molecular Medicine, Karolinska University Hospital, Solna, SE17176 Stockholm, Sweden
| | - Harold Marcotte
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Division of Clinical Immunology and Transfusion Medicine, Karolinska Institutet at Karolinska University Hospital, SE14186 Huddinge, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, SE14183, Huddinge, Sweden
| | - Rolf Sjöström
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
| | - Anna Shevtsova
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
| | - Göran Bylund
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
| | - Lena Rakhimova
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- Present address: Department of Odontology, Umeå University, SE90187 Umeå, Sweden
| | - Anders Lundquist
- Department of Statistics, USBE, Umeå University, SE90187 Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, SE90187 Umeå, Sweden
| | - Oleksandra Berhilevych
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Victoria Kasianchuk
- Department of Public Health, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Andrii Loboda
- Department of Pediatrics, Medical Institute, Sumy State University, 40018 Sumy, Ukraine
| | - Volodymyr Ivanytsia
- Department of Microbiology, Virology and Biotechnology, Odesa Mechnikov National University, 65082 Odesa, Ukraine
| | - Kjell Hultenby
- Departments of Laboratory Medicine, Division of Biomolecular and Cellular Medicine, Karolinska Institutet at Karolinska University Hospital, SE14186 Huddinge, Sweden
| | - Mats A. A. Persson
- Department of Clinical Neuroscience, Karolinska Institutet at Center for Molecular Medicine, Karolinska University Hospital, Solna, SE17176 Stockholm, Sweden
| | - Joana Gomes
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- IPATIMUP – Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
| | - Rita Matos
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- IPATIMUP – Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
| | - Fátima Gartner
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- IPATIMUP – Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Celso A. Reis
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- IPATIMUP – Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | | | - D. Scott Merrell
- Department of Microbiology and Immunology, USUHS, Bethesda, MD 20814, USA
| | - Qiang Pan-Hammarström
- Department of Biosciences and Nutrition, Karolinska Institutet, SE14183, Huddinge, Sweden
| | - Maréne Landström
- Present address: Department of Medical Biosciences, Umeå University, SE90185 Umeå, Sweden
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Mario M. D’Elios
- Department of Experimental and Clinical Medicine, Largo Brambilla 3, 50134 Firenze, Italy
| | - Lars Agreus
- Division of Family Medicine and Primary Care, Karolinska Institutet, SE14183 Huddinge, Sweden
| | - Jukka Ronkainen
- University of Oulu, Center for Life Course Health Research and Primary Health Care Center, Tornio Finland
| | - Pertti Aro
- University of Oulu, Center for Life Course Health Research and Primary Health Care Center, Tornio Finland
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, SE17177 Stockholm, Sweden
- Present address: Science for Life Laboratory, SE17165, Solna, Sweden
| | - David Y. Graham
- Department of Medicine, Molecular Virology and Microbiology, Baylor College of Medicine, Michael E. DeBakey VAMC, 2002 Holcombe Blvd. Houston, TX, 77030 USA
| | - Vladyslava Kachkovska
- Department of Internal Medicine, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Asish Mukhopadhyay
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases P 33, CIT Road, Scheme XM, Kolkata 700010, India
| | - Sujit Chaudhuri
- Department of Gastroenterology, AMRI Hospital, Salt Lake City. Kolkata, West Bengal 700098, India
| | - Bipul Chandra Karmakar
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases P 33, CIT Road, Scheme XM, Kolkata 700010, India
| | - Sangita Paul
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases P 33, CIT Road, Scheme XM, Kolkata 700010, India
| | - Oleksandr Kravets
- Department of Surgery, Traumatology, Orthopedics and Physiology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Margarita Camorlinga
- Unidad de Investigacion en Enfermedades Infecciosas, UMAE Pediatria, CMN SXXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Javier Torres
- Unidad de Investigacion en Enfermedades Infecciosas, UMAE Pediatria, CMN SXXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Douglas E. Berg
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Roman Moskalenko
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Department of Pathology, Medical Institute, Sumy State University, 40007 Sumy, Ukraine
| | - Rainer Haas
- German Center for Infection Research (DZIF), Munich Site, 80336 Munich, Germany
- Chair of Medical Microbiology and Hospital Epidemiology, Max von Pettenkofer-Institute, Faculty of Medicine, LMU Munich, Germany
| | - Han Remaut
- Structural and Molecular Microbiology, VIB Department of Structural Biology, VIB, 1050 Brussels, Belgium
- Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Lennart Hammarström
- Department of Biosciences and Nutrition, Karolinska Institutet, SE14183, Huddinge, Sweden
| | - Thomas Borén
- Department of Medical Biochemistry and Biophysics, Umeå University, SE90187 Umeå, Sweden
- SUMEYA, The Ukrainian-Swedish Research Center, Sumy State University, 40022 Sumy, Ukraine
- Lead contact
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Reyes VE. Helicobacter pylori and Its Role in Gastric Cancer. Microorganisms 2023; 11:1312. [PMID: 37317287 PMCID: PMC10220541 DOI: 10.3390/microorganisms11051312] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/08/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023] Open
Abstract
Gastric cancer is a challenging public health concern worldwide and remains a leading cause of cancer-related mortality. The primary risk factor implicated in gastric cancer development is infection with Helicobacter pylori. H. pylori induces chronic inflammation affecting the gastric epithelium, which can lead to DNA damage and the promotion of precancerous lesions. Disease manifestations associated with H. pylori are attributed to virulence factors with multiple activities, and its capacity to subvert host immunity. One of the most significant H. pylori virulence determinants is the cagPAI gene cluster, which encodes a type IV secretion system and the CagA toxin. This secretion system allows H. pylori to inject the CagA oncoprotein into host cells, causing multiple cellular perturbations. Despite the high prevalence of H. pylori infection, only a small percentage of affected individuals develop significant clinical outcomes, while most remain asymptomatic. Therefore, understanding how H. pylori triggers carcinogenesis and its immune evasion mechanisms is critical in preventing gastric cancer and mitigating the burden of this life-threatening disease. This review aims to provide an overview of our current understanding of H. pylori infection, its association with gastric cancer and other gastric diseases, and how it subverts the host immune system to establish persistent infection.
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Affiliation(s)
- Victor E Reyes
- Department of Pediatrics and Microbiology & Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0372, USA
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Malfertheiner P, Camargo MC, El-Omar E, Liou JM, Peek R, Schulz C, Smith SI, Suerbaum S. Helicobacter pylori infection. Nat Rev Dis Primers 2023; 9:19. [PMID: 37081005 PMCID: PMC11558793 DOI: 10.1038/s41572-023-00431-8] [Citation(s) in RCA: 348] [Impact Index Per Article: 174.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2023] [Indexed: 04/22/2023]
Abstract
Helicobacter pylori infection causes chronic gastritis, which can progress to severe gastroduodenal pathologies, including peptic ulcer, gastric cancer and gastric mucosa-associated lymphoid tissue lymphoma. H. pylori is usually transmitted in childhood and persists for life if untreated. The infection affects around half of the population in the world but prevalence varies according to location and sanitation standards. H. pylori has unique properties to colonize gastric epithelium in an acidic environment. The pathophysiology of H. pylori infection is dependent on complex bacterial virulence mechanisms and their interaction with the host immune system and environmental factors, resulting in distinct gastritis phenotypes that determine possible progression to different gastroduodenal pathologies. The causative role of H. pylori infection in gastric cancer development presents the opportunity for preventive screen-and-treat strategies. Invasive, endoscopy-based and non-invasive methods, including breath, stool and serological tests, are used in the diagnosis of H. pylori infection. Their use depends on the specific individual patient history and local availability. H. pylori treatment consists of a strong acid suppressant in various combinations with antibiotics and/or bismuth. The dramatic increase in resistance to key antibiotics used in H. pylori eradication demands antibiotic susceptibility testing, surveillance of resistance and antibiotic stewardship.
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Affiliation(s)
- Peter Malfertheiner
- Medical Department II, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany.
- Medical Department Klinik of Gastroenterology, Hepatology and Infectiology, Otto-von-Guericke Universität, Magdeburg, Germany.
| | - M Constanza Camargo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Emad El-Omar
- Microbiome Research Centre, St George & Sutherland Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Jyh-Ming Liou
- Department of Internal Medicine, National Taiwan University Cancer Center, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Richard Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christian Schulz
- Medical Department II, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
- DZIF Deutsches Zentrum für Infektionsforschung, Partner Site Munich, Munich, Germany
| | - Stella I Smith
- Department of Molecular Biology and Biotechnology, Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Sebastian Suerbaum
- DZIF Deutsches Zentrum für Infektionsforschung, Partner Site Munich, Munich, Germany
- Max von Pettenkofer Institute, Faculty of Medicine, Ludwig-Maximilians-Universität, Munich, Germany
- National Reference Center for Helicobacter pylori, Munich, Germany
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35
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Sardar M, Kumar D, Aakash FNU, Partab FNU, Kumar S, Barkha FNU, Danesh FNU, Berza Q, Shaikh B, Sangam FNU, Hasan M, Erum S, Mumtaz H. Prevalence and etiology of Helicobacter pylori infection in dyspepsia patients: a hospital-based cross-sectional study. Ann Med Surg (Lond) 2023; 85:665-669. [PMID: 37113856 PMCID: PMC10129114 DOI: 10.1097/ms9.0000000000000120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/22/2022] [Indexed: 04/05/2023] Open
Abstract
Helicobacter pylori infection is seropositive in ~50% of people globally. Therefore, this study was conducted to evaluate its prevalence in dyspepsia patients. Methods A cross-sectional study was conducted at Jinnah Postgraduate Medical Centre (JPMC) from January to June 2022 to find out the prevalence and risk factors of H. pylori in dyspepsia patients. A prevalidated questionnaire was used to collect the data from 180 patients. This study adheres to the principles outlined in the Helsinki Declaration. The χ 2-test was applied, and the odds ratio and 95% CI were calculated to find the association of H. pylori with the risk factors. Results A total of 180 patients were enrolled in this study, of whom, 73 (40.6%) patients were male and 107 (59.4%) were female. In seropositive H. pylori patients, 80 (60.6%) patients had nausea or vomiting, 110 (83.3%) patients were found to have flatulence, 128 (97.7%) patients were experiencing frequent burping, and 114 (86.4%) patients were having epigastric pain. The household member greater than 4, smoking, rural area residence, NSAIDs consumption, BMI greater than 25, O+ blood group, and Rhesus positive status were significantly associated with H. pylori with a P value of less than 0.05. Conclusion This study concludes that the prevalence of H. pylori in our population is high, and the risk factors identified are lower class, BMI greater than 25, smoking, O+ blood group, NSAID consumption, rural area residence, household member greater than 4, Rhesus positive status, and the symptoms of nausea or vomiting, frequent burping, epigastric pain, and flatulence. Patients with an increased number of risk factors should be taken into consideration for an appropriate checkup.
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Affiliation(s)
| | | | | | - FNU Partab
- Jinnah Postgraduate Medical Centre (JPMC)
| | | | - FNU Barkha
- Department of Internal Medicine, Dow Medical College, Civil Hospital
| | | | | | - Bisma Shaikh
- Liaqat University of Medical and Health Sciences
| | - FNU Sangam
- Liaqat University of Medical and Health Sciences
- Liaquat University of Medical and Health Sciences, Jamshoro
| | | | - Sheeza Erum
- Maroof International Hospital Health Services Academy, Islamabad, Pakistan
| | - Hassan Mumtaz
- Maroof International Hospital Health Services Academy, Islamabad, Pakistan
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Estimation of Lewis Blood Group Status by Fluorescence Melting Curve Analysis in Simultaneous Genotyping of c.385A>T and Fusion Gene in FUT2 and c.59T>G and c.314C>T in FUT3. Diagnostics (Basel) 2023; 13:diagnostics13050931. [PMID: 36900072 PMCID: PMC10000471 DOI: 10.3390/diagnostics13050931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/15/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Lewis blood group status is determined by two fucosyltransferase activities: those of FUT2-encoded fucosyltransferase (Se enzyme) and FUT3-encoded fucosyltransferase (Le enzyme). In Japanese populations, c.385A>T in FUT2 and a fusion gene between FUT2 and its pseudogene SEC1P are the cause of most Se enzyme-deficient alleles (Sew and sefus), and c.59T>G and c.314C>T in FUT3 are tag SNPs for almost all nonfunctional FUT3 alleles (le59, le59,508, le59,1067, and le202,314). In this study, we first conducted a single-probe fluorescence melting curve analysis (FMCA) to determine c.385A>T and sefus using a pair of primers that collectively amplify FUT2, sefus, and SEC1P. Then, to estimate Lewis blood group status, a triplex FMCA was performed with a c.385A>T and sefus assay system by adding primers and probes to detect c.59T>G and c.314C>T in FUT3. We also validated these methods by analyzing the genotypes of 96 selected Japanese people whose FUT2 and FUT3 genotypes were already determined. The single-probe FMCA was able to identify six genotype combinations: 385A/A, 385T/T, sefus/sefus, 385A/T, 385A/sefus, and 385T/sefus. In addition, the triplex FMCA successfully identified both FUT2 and FUT3 genotypes, although the resolutions of the analysis of c.385A>T and sefus were somewhat reduced compared to that of the analysis of FUT2 alone. The estimation of the secretor status and Lewis blood group status using the form of FMCA used in this study may be useful for large-scale association studies in Japanese populations.
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Anglenius H, Mäkivuokko H, Ahonen I, Forssten SD, Wacklin P, Mättö J, Lahtinen S, Lehtoranta L, Ouwehand AC. In Vitro Screen of Lactobacilli Strains for Gastrointestinal and Vaginal Benefits. Microorganisms 2023; 11:microorganisms11020329. [PMID: 36838294 PMCID: PMC9967617 DOI: 10.3390/microorganisms11020329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Traditional probiotics comprise mainly lactic acid bacteria that are safe for human use, tolerate acid and bile, and adhere to the epithelial lining and mucosal surfaces. In this study, one hundred commercial and non-commercial strains that were isolated from human feces or vaginal samples were tested with regards to overall growth in culture media, tolerance to acid and bile, hydrogen peroxide (H2O2) production, and adhesion to vaginal epithelial cells (VECs) and to blood group antigens. As a result, various of the tested lactobacilli strains were determined to be suitable for gastrointestinal or vaginal applications. Commercial strains grew better than the newly isolated strains, but tolerance to acid was a common property among all tested strains. Tolerance to bile varied considerably between the strains. Resistance to bile and acid correlated well, as did VEC adhesion and H2O2 production, but H2O2 production was not associated with resistance to bile or acid. Except for L. iners strains, vaginal isolates had better overall VEC adhesion and higher H2O2 production. Species- and strain-specific differences were evident for all parameters. Rank-ordered clustering with nine clusters was used to identify strains that were suitable for gastrointestinal or vaginal health, demonstrating that the categorization of strains for targeted health indications is possible based on the parameters that were measured in this study.
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Affiliation(s)
- Heli Anglenius
- IFF Health and Biosciences, 02460 Kantvik, Finland
- Correspondence:
| | | | | | | | | | - Jaana Mättö
- Finnish Red Cross Blood Service, 00310 Helsinki, Finland
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Lin SJH, Helm ET, Gabler NK, Burrough ER. Acute infection with Brachyspira hyodysenteriae affects mucin expression, glycosylation, and fecal MUC5AC. Front Cell Infect Microbiol 2023; 12:1042815. [PMID: 36683692 PMCID: PMC9852840 DOI: 10.3389/fcimb.2022.1042815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/28/2022] [Indexed: 01/08/2023] Open
Abstract
Introduction Infection with strongly β-hemolytic strains of Brachyspira hyodysenteriae leads to swine dysentery (SD), a production-limiting disease that causes mucohemorrhagic diarrhea and typhlocolitis in pigs. This pathogen has strong chemotactic activity toward mucin, and infected pigs often have a disorganized mucus layer and marked de novo expression of MUC5AC, which is not constitutively expressed in the colon. It has been shown that fucose is chemoattractant for B. hyodysenteriae, and a highly fermentable fiber diet can mitigate and delay the onset of SD. Methods We used lectins targeting sialic acids in α-2,6 or α-2,3 linkages, N-acetylglucosamine (GlcNAc), α-linked L-fucose, and an immunohistochemical stain targeting N-glycolylneuraminic acid (NeuGc) to investigate the local expression of these mucin glycans in colonic tissues of pigs with acute SD. We used a commercial enzyme-linked immunosorbent assay (ELISA) to quantify fecal MUC5AC in infected pigs and assess its potential as a diagnostic monitoring tool and RNA in situ hybridization to detect IL-17A in the colonic mucosa. Results Colonic mucin glycosylation during SD has an overall increase in fucose, a spatially different distribution of GlcNAc with more expression within the crypt lumens of the upper colonic mucosa, and decreased expression or a decreased trend of sialic acids in α-2,6 or α-2,3 linkages, and NeuGc compared to the controls. The degree of increased fucosylation was less in the colonic mucosa of pigs with SD and fed the highly fermentable fiber diet. There was a significant increase in MUC5AC in fecal and colonic samples of pigs with SD at the endpoint compared to the controls, but the predictive value for disease progression was limited. Discussion Fucosylation and the impact of dietary fiber may play important roles in the pathogenesis of SD. The lack of predictive value for fecal MUC5AC quantification by ELISA is possibly due to the presence of other non-colonic sources of MUC5AC in the feces. The moderate correlation between IL-17A, neutrophils and MUC5AC confirms its immunoregulatory and mucin stimulatory role. Our study characterizes local alteration of mucin glycosylation in the colonic mucosa of pigs with SD after B. hyodysenteriae infection and may provide insight into host-pathogen interaction.
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Affiliation(s)
- Susanne Je-Han Lin
- Department of Veterinary Pathology, Iowa State University, Ames, IA, United States
| | - Emma T Helm
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Nicholas K Gabler
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Eric R Burrough
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, United States
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Fluorescence Melting Curve Analysis for Concurrent Genotyping of Three Tag SNPs in FUT3. Diagnostics (Basel) 2022; 12:diagnostics12123039. [PMID: 36553046 PMCID: PMC9777090 DOI: 10.3390/diagnostics12123039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/01/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
The synthesis of Lewis blood group antigens is governed by two fucosyltransferase genes, FUT2 and FUT3. Evidence is accumulating to suggest that functional polymorphisms of FUT2 and FUT3 are associated with a variety of clinical conditions. Fluorescence melting curve analysis (FMCA), using three different dual-labeled probes for concurrent genotyping of three single nucleotide polymorphisms (SNPs) of FUT3, c.59T>G, c.314C>T, and c.484G>A for Lewis-negative allele inference, was developed and validated using Ghanaian and Caucasian subjects. Although two other SNPs, c.55G>A, and c.61C>T, are located in the probe sequence for c.59T>G, it seems feasible to detect these two SNPs along with c.59T>G. The results obtained by probe-based FMCA were in perfect accordance with those obtained by Sanger sequencing for 106 Ghanaians and 100 Caucasians. The present method is useful and reliable for estimating Lewis-negative alleles on a relatively large scale.
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Zhang Y, Li X, Shan B, Zhang H, Zhao L. Perspectives from recent advances of Helicobacter pylori vaccines research. Helicobacter 2022; 27:e12926. [PMID: 36134470 DOI: 10.1111/hel.12926] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/25/2022] [Accepted: 08/17/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection is the main factor leading to some gastric diseases. Currently, H. pylori infection is primarily treated with antibiotics. However, with the widespread application of antibiotics, H. pylori resistance to antibiotics has also gradually increased year by year. Vaccines may be an alternative solution to clear H. pylori. AIMS By reviewing the recent progress on H. pylori vaccines, we expected it to lead to more research efforts to accelerate breakthroughs in this field. MATERIALS & METHODS We searched the research on H. pylori vaccine in recent years through PubMed®, and then classified and summarized these studies. RESULTS The study of the pathogenic mechanism of H. pylori has led to the development of vaccines using some antigens, such as urease, catalase, and heat shock protein (Hsp). Based on these antigens, whole-cell, subunit, nucleic acid, vector, and H. pylori exosome vaccines have been tested. DISCUSSION At present, researchers have developed many types of vaccines, such as whole cell vaccines, subunit vaccines, vector vaccines, etc. However, although some of these vaccines induced protective immunity in mouse models, only a few were able to move into human trials. We propose that mRNA vaccine may play an important role in preventing or treating H. pylori infection. The current study shows that we have developed various types of vaccines based on the virulence factors of H. pylori. However, only a few vaccines have entered human clinical trials. In order to improve the efficacy of vaccines, it is necessary to enhance T-cell immunity. CONCLUSION We should fully understand the pathogenic mechanism of H. pylori and find its core antigen as a vaccine target.
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Affiliation(s)
- Ying Zhang
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoya Li
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Baoen Shan
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongtao Zhang
- University of Pennsylvania School of Medicine Philadelphia, Philadelphia, Pennsylvania, USA
| | - Lianmei Zhao
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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Helicobacter pylori shows tropism to gastric differentiated pit cells dependent on urea chemotaxis. Nat Commun 2022; 13:5878. [PMID: 36198679 PMCID: PMC9535007 DOI: 10.1038/s41467-022-33165-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/06/2022] [Indexed: 11/09/2022] Open
Abstract
The human gastric epithelium forms highly organized gland structures with different subtypes of cells. The carcinogenic bacterium Helicobacter pylori can attach to gastric cells and subsequently translocate its virulence factor CagA, but the possible host cell tropism of H. pylori is currently unknown. Here, we report that H. pylori preferentially attaches to differentiated cells in the pit region of gastric units. Single-cell RNA-seq shows that organoid-derived monolayers recapitulate the pit region, while organoids capture the gland region of the gastric units. Using these models, we show that H. pylori preferentially attaches to highly differentiated pit cells, marked by high levels of GKN1, GKN2 and PSCA. Directed differentiation of host cells enable enrichment of the target cell population and confirm H. pylori preferential attachment and CagA translocation into these cells. Attachment is independent of MUC5AC or PSCA expression, and instead relies on bacterial TlpB-dependent chemotaxis towards host cell-released urea, which scales with host cell size. The carcinogenic bacterium Helicobacter pylori infects gastric cells. Here, the authors show that H. pylori preferentially infects differentiated cells in the pit region of gastric units, and this relies on bacterial chemotaxis towards host cell-released urea, which scales with host cell size.
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A Complex Connection Between the Diversity of Human Gastric Mucin O-Glycans, Helicobacter pylori Binding, Helicobacter Infection and Fucosylation. Mol Cell Proteomics 2022; 21:100421. [PMID: 36182101 PMCID: PMC9661725 DOI: 10.1016/j.mcpro.2022.100421] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 01/18/2023] Open
Abstract
Helicobacter pylori colonizes the stomach of half of the human population. Most H. pylori are located in the mucus layer, which is mainly comprised by glycosylated mucins. Using mass spectrometry, we identified 631 glycans (whereof 145 were fully characterized and the remainder assigned as compositions) on mucins isolated from 14 Helicobacter spp.-infected and 14 Helicobacter spp.-noninfected stomachs. Only six identified glycans were common to all individuals, from a total of 60 to 189 glycans in each individual. An increased number of unique glycan structures together with an increased intraindividual diversity and larger interindividual variation were identified among O-glycans from Helicobacter spp.-infected stomachs compared with noninfected stomachs. H. pylori strain J99, which carries the blood group antigen-binding adhesin (BabA), the sialic acid-binding adhesin (SabA), and the LacdiNAc-binding adhesin, bound both to Lewis b (Leb)-positive and Leb-negative mucins. Among Leb-positive mucins, H. pylori J99 binding was higher to mucins from Helicobacter spp.-infected individuals than noninfected individuals. Statistical correlation analysis, binding experiments with J99 wt, and J99ΔbabAΔsabA and inhibition experiments using synthetic glycoconjugates demonstrated that the differences in H. pylori-binding ability among these four groups were governed by BabA-dependent binding to fucosylated structures. LacdiNAc levels were lower in mucins that bound to J99 lacking BabA and SabA than in mucins that did not, suggesting that LacdiNAc did not significantly contribute to the binding. We identified 24 O-glycans from Leb-negative mucins that correlated well with H. pylori binding whereof 23 contained α1,2-linked fucosylation. The large and diverse gastric glycan library identified, including structures that correlated with H. pylori binding, could be used to select glycodeterminants to experimentally investigate further for their importance in host-pathogen interactions and as candidates to develop glycan-based therapies.
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Pereira E, Felipe S, de Freitas R, Araújo V, Soares P, Ribeiro J, Henrique Dos Santos L, Alves JO, Canabrava N, van Tilburg M, Guedes MI, Ceccatto V. ABO blood group and link to COVID-19: A comprehensive review of the reported associations and their possible underlying mechanisms. Microb Pathog 2022; 169:105658. [PMID: 35764188 PMCID: PMC9233352 DOI: 10.1016/j.micpath.2022.105658] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/22/2022] [Accepted: 06/22/2022] [Indexed: 11/20/2022]
Abstract
ABO blood group is long known to be an influencing factor for the susceptibility to infectious diseases, and many studies have been describing associations between ABO blood types and COVID-19 infection and severity, with conflicting findings. This narrative review aims to summarize the literature regarding associations between the ABO blood group and COVID-19. Blood type O is mostly associated with lower rates of SARS-CoV-2 infection, while blood type A is frequently described as a risk factor. Although results regarding the risk of severe outcomes are more variable, blood type A is the most associated with COVID-19 severity and mortality, while many studies describe O blood type as a protective factor for the disease progression. Furthermore, genetic associations with both the risk of infection and disease severity have been reported for the ABO locus. Some underlying mechanisms have been hypothesized to explain the reported associations, with incipient experimental data. Three major hypotheses emerge: SARS-CoV-2 could carry ABO(H)-like structures in its envelope glycoproteins and would be asymmetrically transmitted due to a protective effect of the ABO antibodies, ABH antigens could facilitate SARS-CoV-2 interaction with the host' cells, and the association of non-O blood types with higher risks of thromboembolic events could confer COVID-19 patients with blood type O a lower risk of severe outcomes. The hypothesized mechanisms would affect distinct aspects of the COVID-19 natural history, with distinct potential implications to the disease transmission and its management.
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Affiliation(s)
- Eric Pereira
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Stela Felipe
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Raquel de Freitas
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Valdevane Araújo
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Paula Soares
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Jannison Ribeiro
- Hematology and Hemotherapy Center of Ceará, José Bastos Av., Fortaleza, 60431-086, Ceará, Brazil
| | - Luiz Henrique Dos Santos
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Juliana Osório Alves
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Natália Canabrava
- Biotechnology and Molecular Biology Laboratory, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Mauricio van Tilburg
- Biotechnology and Molecular Biology Laboratory, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Maria Izabel Guedes
- Biotechnology and Molecular Biology Laboratory, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil
| | - Vânia Ceccatto
- Superior Institute of Biomedical Sciences, State University of Ceará, Dr. Silas Munguba Av., Fortaleza, 60714-903, Ceará, Brazil.
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Kløve-Mogensen K, Steffensen R, Masmas TN, Glenthøj A, Haunstrup TM, Ratcliffe P, Höglund P, Hasle H, Nielsen KR. ABO, secretor, and Lewis carbohydrate histo-blood groups are associated with autoimmune neutropenia of early childhood in Danish patients. Transfusion 2022; 62:1636-1642. [PMID: 35792132 PMCID: PMC9544446 DOI: 10.1111/trf.17002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 04/22/2022] [Accepted: 06/05/2022] [Indexed: 12/02/2022]
Abstract
Background Autoimmune neutropenia of early childhood (AIN) is caused by autoantibodies directed against antigens on the neutrophil membrane. The ABO, secretor, and Lewis histo‐blood group systems control the expression of carbohydrate antigens and have previously been linked to autoimmune diseases. We aimed to investigate the association between genotypes and the risk of AIN in Danish patients. Study Design and Methods One hundred fifty‐four antibody‐positive AIN patients were included. Controls (n = 400) were healthy unrelated Danish blood donors. Molecular determination of ABO, secretor (FUT2), and Lewis (FUT3) genotypes were determined using real‐time polymerase chain reaction (qPCR) or Sanger sequencing to infer the prevalence of Lewis antigens (Lea and Leb) and secretor (SeSe or Sese) or nonsecretor (sese) phenotypes. Results Blood type O was more common in controls (46.8%) than in AIN patients (36.4%) (OR = 0.65; p = 0.028). Secretors of H Leb antigens were less frequent among AIN patients (25.2%) than controls (35.0%) (OR = 0.62; p = 0.037). Discussion ABO blood group antigens and the secretion of these antigens are associated with a diagnosis of AIN. The mechanism underlying the association between autoimmunity and interaction among ABO, secretor, and Lewis genotypes has not yet been elucidated, but several studies indicate a connection to the gut microbiota.
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Affiliation(s)
- Kirstine Kløve-Mogensen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Rudi Steffensen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Tania Nicole Masmas
- Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Andreas Glenthøj
- Center for Hemoglobinopathies, Department of Hematology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Thure Mors Haunstrup
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Paul Ratcliffe
- Department of Medicine Huddinge, Karolinska Institute, Stockholm, Sweden
| | - Petter Höglund
- Department of Medicine Huddinge, Karolinska Institute, Stockholm, Sweden
| | - Henrik Hasle
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Kaspar René Nielsen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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De Masi R, Orlando S. GANAB and N-Glycans Substrates Are Relevant in Human Physiology, Polycystic Pathology and Multiple Sclerosis: A Review. Int J Mol Sci 2022; 23:7373. [PMID: 35806376 PMCID: PMC9266668 DOI: 10.3390/ijms23137373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/22/2022] [Accepted: 06/28/2022] [Indexed: 11/29/2022] Open
Abstract
Glycans are one of the four fundamental macromolecular components of living matter, and they are highly regulated in the cell. Their functions are metabolic, structural and modulatory. In particular, ER resident N-glycans participate with the Glc3Man9GlcNAc2 highly conserved sequence, in protein folding process, where the physiological balance between glycosylation/deglycosylation on the innermost glucose residue takes place, according GANAB/UGGT concentration ratio. However, under abnormal conditions, the cell adapts to the glucose availability by adopting an aerobic or anaerobic regimen of glycolysis, or to external stimuli through internal or external recognition patterns, so it responds to pathogenic noxa with unfolded protein response (UPR). UPR can affect Multiple Sclerosis (MS) and several neurological and metabolic diseases via the BiP stress sensor, resulting in ATF6, PERK and IRE1 activation. Furthermore, the abnormal GANAB expression has been observed in MS, systemic lupus erythematous, male germinal epithelium and predisposed highly replicating cells of the kidney tubules and bile ducts. The latter is the case of Polycystic Liver Disease (PCLD) and Polycystic Kidney Disease (PCKD), where genetically induced GANAB loss affects polycystin-1 (PC1) and polycystin-2 (PC2), resulting in altered protein quality control and cyst formation phenomenon. Our topics resume the role of glycans in cell physiology, highlighting the N-glycans one, as a substrate of GANAB, which is an emerging key molecule in MS and other human pathologies.
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Affiliation(s)
- Roberto De Masi
- Complex Operative Unit of Neurology, “F. Ferrari” Hospital, Casarano, 73042 Lecce, Italy;
- Laboratory of Neuroproteomics, Multiple Sclerosis Centre, “F. Ferrari” Hospital, Casarano, 73042 Lecce, Italy
| | - Stefania Orlando
- Laboratory of Neuroproteomics, Multiple Sclerosis Centre, “F. Ferrari” Hospital, Casarano, 73042 Lecce, Italy
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Someya Y. Lewis b antigen is a common ligand for genogroup I norovirus strains. FEBS Open Bio 2022; 12:1688-1695. [PMID: 35711036 PMCID: PMC9433824 DOI: 10.1002/2211-5463.13455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 11/18/2022] Open
Abstract
Noroviruses are major causative agents of nonbacterial acute gastroenteritis in humans. Ten genogroups of noroviruses have been identified to date, among which genogroup I (GI) and genogroup II (GII) noroviruses are major pathogens for humans. GI and GII noroviruses are further classified into nine and 27 genotypes, respectively. Noroviruses are well known to bind to histo‐blood group antigens (HBGAs). Many studies have revealed that virus‐like particles (VLPs) from different genotypes exhibit distinct patterns of HBGA binding, but the assay conditions used in these studies were not identical. To enable comparison of the binding to HBGA of nine GI genotypes, I purified VLPs from insect cells and analysed their HBGA‐binding profiles. Although each genotype exhibited a distinct pattern of HBGA binding, Lewis b antigen was commonly recognized by all of the genogroup I strains, suggesting that this antigen plays a critical role in the pathogenesis of noroviruses.
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Affiliation(s)
- Yuichi Someya
- Department of Virology II, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashi-Murayama, Tokyo, 208-0011, Japan
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Lymperaki E, Stalika E, Tzavelas G, Tormpantoni E, Samara D, Vagdatli E, Tsamesidis I. The Clinical Utility of ABO and RHD Systems as Potential Indicators of Health Status, a Preliminary Study in Greek Population. Clin Pract 2022; 12:406-418. [PMID: 35735664 PMCID: PMC9221977 DOI: 10.3390/clinpract12030045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/16/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Objective: The objective of this study is to further highlight the differences between different ABO blood groups and Rhesus types with health biomarkers. Methods: In total 150 active healthy blood donors participated in our study comprising of 80 males from 19–61 years and 70 females aged from 21 to 64. Participants carrying blood group A were 55 individuals, blood group B 32, blood group O 51, and blood group AB 12, RHD+ 132, and RHD- 18. All the volunteer regular blood donors were selected recognizing them as a healthy population excluding drug and supplements intake. Their blood samples were analyzed just before blood donation for biochemical, hematological, and antioxidant markers. Statistical computations were performed using the SPSS tool, specifically, the one-way ANOVA test, Chi-square statistics, and logistic regression were used as statistical models. Results: O blood donors presented better iron absorption and the worst lipid profile. Indeed, a significant trend of high atheromatic index values revealed an increased risk for hyperlipidemia, in contrast with blood group A presenting a better lipid profile with lower atheromatic index values. There was also a gender related association for blood group A compared with O that was further highlighted using binary logistic regression. Conclusion: In this study, a significant difference was observed among the ABO blood groups in several of the examined biochemical and hematological biomarkers. O blood group appeared different behavior in comparison to all the tested blood groups and furthermore the RHD-group presented a better lipid profile in comparison to the RHD+ group. In order to obtain a more comprehensive view of the correlation between the ABO blood group and biochemical markers, further studies are required.
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Affiliation(s)
- Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University, 57001 Thessaloniki, Greece;
| | - Evangelia Stalika
- Lab of Computing and Medical Informatics, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George Tzavelas
- Department of Statistics and Insurance Science, University of Piraeus, 18534 Piraeus, Greece;
| | - Efthymia Tormpantoni
- Blood Bank Section, Naousa General Hospital, 59200 Naousa, Greece; (E.T.); (D.S.)
| | - Diana Samara
- Blood Bank Section, Naousa General Hospital, 59200 Naousa, Greece; (E.T.); (D.S.)
| | - Eleni Vagdatli
- Laboratory of Biopathology, Hippokratio General Hospital, 54642 Thessaloniki, Greece;
| | - Ioannis Tsamesidis
- Department of Biomedical Sciences, International Hellenic University, 57001 Thessaloniki, Greece;
- Faculty of Health Sciences, School of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Correspondence: ; Tel.: +30-699-631-12-60
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48
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ABO genotype alters the gut microbiota by regulating GalNAc levels in pigs. Nature 2022; 606:358-367. [PMID: 35477154 PMCID: PMC9157047 DOI: 10.1038/s41586-022-04769-z] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 04/19/2022] [Indexed: 12/12/2022]
Abstract
The composition of the intestinal microbiome varies considerably between individuals and is correlated with health1. Understanding the extent to which, and how, host genetics contributes to this variation is essential yet has proved to be difficult, as few associations have been replicated, particularly in humans2. Here we study the effect of host genotype on the composition of the intestinal microbiota in a large mosaic pig population. We show that, under conditions of exacerbated genetic diversity and environmental uniformity, microbiota composition and the abundance of specific taxa are heritable. We map a quantitative trait locus affecting the abundance of Erysipelotrichaceae species and show that it is caused by a 2.3 kb deletion in the gene encoding N-acetyl-galactosaminyl-transferase that underpins the ABO blood group in humans. We show that this deletion is a ≥3.5-million-year-old trans-species polymorphism under balancing selection. We demonstrate that it decreases the concentrations of N-acetyl-galactosamine in the gut, and thereby reduces the abundance of Erysipelotrichaceae that can import and catabolize N-acetyl-galactosamine. Our results provide very strong evidence for an effect of the host genotype on the abundance of specific bacteria in the intestine combined with insights into the molecular mechanisms that underpin this association. Our data pave the way towards identifying the same effect in rural human populations. The host blood-type-associated ABO genotype affects the abundance of specific bacteria in the pig intestine.
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Hollinger M, Bonaccorsi F, Cheallaigh AN, Oscarson S. Synthesis of a Lewis b hexasaccharide thioglycoside donor and its use towards an extended mucin core Tn heptasaccharide structure and a photoreactive biotinylated serine linked hexasaccharide. Org Biomol Chem 2022; 20:4431-4440. [PMID: 35587262 DOI: 10.1039/d2ob00477a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Investigation into Heliobacter pylori binding to Lewis b (Leb) antigens through the blood group antigen binding adhesion protein (BabA) requires structurally well-defined tools. A Leb hexasaccharide thioglycoside donor was chemically prepared through a linear approach starting from D-lactose. This donor can be used to attach reducing end linkers providing a range of options for conjugation techniques or to further extend the oligosaccharide structure. To evaluate its efficiency as a donor, it was coupled to a 6-OH GalNAc acceptor, producing an extended Leb-containing Tn mucin core structure in 84% yield, and to L-serine in 72% yield. The latter compound was subsequently functionalized with a photolabile diazirine linker and biotin, creating a Leb hexasaccharide structure-function tool suitable for lectin tagging interaction studies. This donor opens a wide range of possibilities for conjugation of Leb structures to produce a variety of chemical biology tools to assist in the study of these interactions.
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Affiliation(s)
- Martin Hollinger
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Filippo Bonaccorsi
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Aisling Ní Cheallaigh
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
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50
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Sijmons D, Guy AJ, Walduck AK, Ramsland PA. Helicobacter pylori and the Role of Lipopolysaccharide Variation in Innate Immune Evasion. Front Immunol 2022; 13:868225. [PMID: 35634347 PMCID: PMC9136243 DOI: 10.3389/fimmu.2022.868225] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/04/2022] [Indexed: 11/30/2022] Open
Abstract
Helicobacter pylori is an important human pathogen that infects half the human population and can lead to significant clinical outcomes such as acute and chronic gastritis, duodenal ulcer, and gastric adenocarcinoma. To establish infection, H. pylori employs several mechanisms to overcome the innate and adaptive immune systems. H. pylori can modulate interleukin (IL) secretion and innate immune cell function by the action of several virulence factors such as VacA, CagA and the type IV secretion system. Additionally, H. pylori can modulate local dendritic cells (DC) negatively impacting the function of these cells, reducing the secretion of immune signaling molecules, and influencing the differentiation of CD4+ T helper cells causing a bias to Th1 type cells. Furthermore, the lipopolysaccharide (LPS) of H. pylori displays a high degree of phase variation and contains human blood group carbohydrate determinants such as the Lewis system antigens, which are proposed to be involved in molecular mimicry of the host. Lastly, the H. pylori group of outer membrane proteins such as BabA play an important role in attachment and interaction with host Lewis and other carbohydrate antigens. This review examines the various mechanisms that H. pylori utilises to evade the innate immune system as well as discussing how the structure of the H. pylori LPS plays a role in immune evasion.
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Affiliation(s)
- Daniel Sijmons
- School of Science, RMIT University, Melbourne, VIC, Australia
| | - Andrew J. Guy
- School of Science, RMIT University, Melbourne, VIC, Australia
- ZiP Diagnostics, Collingwood, VIC, Australia
| | - Anna K. Walduck
- School of Science, RMIT University, Melbourne, VIC, Australia
| | - Paul A. Ramsland
- School of Science, RMIT University, Melbourne, VIC, Australia
- Department of Immunology, Monash University, Melbourne, VIC, Australia
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
- *Correspondence: Paul A. Ramsland,
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