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Qin N, Fan Y, Yang T, Yang Z, Fan D. The burden of Gastric Cancer and possible risk factors from 1990 to 2021, and projections until 2035: findings from the Global Burden of Disease Study 2021. Biomark Res 2025; 13:5. [PMID: 39773334 PMCID: PMC11708091 DOI: 10.1186/s40364-024-00720-8] [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: 10/20/2024] [Accepted: 12/25/2024] [Indexed: 01/11/2025] Open
Abstract
BACKGROUND AND OBJECTIVE Gastric cancer (GC) remains a significant global health challenge, characterized by high incidence and mortality rates, particularly in East Asia. A comprehensive understanding of the disease burden of gastric cancer is crucial for developing effective prevention and treatment strategies. However, comprehensive global assessments of the disease burden of gastric cancer remain limited. This study, based on the Global Burden of Disease (GBD) framework, systematically analyzes global trends in gastric cancer from 1990 to 2021 and projects future trends through 2035, aiming to provide scientific evidence for policymaking. METHODS The data were derived from the Global Burden of Disease (GBD) Study 2021, covering gastric cancer (GC) incidence, mortality, disability-adjusted life years (DALYs), age-standardized incidence rates (ASIRs), age-standardized death rates (ASDRs), and age-standardized DALY rates (ASRs) across 204 countries and regions from 1990 to 2021. The Bayesian age-period-cohort model was employed to project trends up to 2035. RESULTS In comparison with 1990, both the incidence and mortality of GC rose in 2021, with over 1.23 million new cases recorded globally, resulting in 954,373.60 deaths and 22,786,633.10 DALYs. Between 1990 and 2021, the ASIRs, ASDRs, and ASRs decreased by 42% (ranging from 49 to 35%), 49% (ranging from 55 to 43%), and 53% (ranging from 58 to 47%), respectively. The peak ASIRs and ASDRs in 2021 were seen in the high-middle SDI quintile. Males exhibited higher rates of ASDRs, ASIRs, and ASRs compared to females. In 2021, East Asia and high-income North America bore the largest burden of smoking-related GC, while Central Europe experienced the highest burden from high-sodium diets. Forecasts toward 2035 indicate a continued decline in both ASIRs and ASDRs. CONCLUSIONS Despite notable reductions in both incidence and mortality, GC remains a substantial global burden, affecting various regions and countries. Deaths and DALYs related to high-sodium diets and smoking have shown an overall decline. However, substantial regional and age-related disparities persist. Targeted interventions, such as smoking control and promoting the intake of fresh fruits and vegetables, are essential in diminishing GC risk.
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Affiliation(s)
- Niping Qin
- First Hospital of Shanxi Medical University, Scholl of Management of Shanxi Medical University, Taiyuan, 030001, China
| | - Yangyan Fan
- First Hospital of Shanxi Medical University, Scholl of Management of Shanxi Medical University, Taiyuan, 030001, China
| | - Tao Yang
- The First Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, 550001, China
| | - Zhiping Yang
- First Hospital of Shanxi Medical University, Scholl of Management of Shanxi Medical University, Taiyuan, 030001, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China.
| | - Daiming Fan
- First Hospital of Shanxi Medical University, Scholl of Management of Shanxi Medical University, Taiyuan, 030001, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China.
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Requena D, Ribas E, Gilman RH, Cabrera L, Cok J, Barriga-Rivera W, Combe-Gutiérrez J, Vargas-Cardenas G, Seidelmann L, Miele CH. Effects of High Altitude and Diet on Gastric Disease Severity in Helicobacter pylori Infection in Peru. Helicobacter 2024; 29:e13147. [PMID: 39552030 DOI: 10.1111/hel.13147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 09/03/2024] [Accepted: 09/22/2024] [Indexed: 11/19/2024]
Abstract
Helicobacter pylori is a bacterium that infects approximately half of the world's population, being more prevalent in low- and middle-income countries. H. pylori can cause gastritis, peptic ulcer disease, mucosa-associated lymphoid tissue lymphoma, and gastric cancer, which is among the five most frequent cancers worldwide. Other factors such as a diet low in vegetables and high in processed red meat have been associated with gastric cancer. Here, we studied the effects of high altitude and diet on gastric disease severity in H. pylori infection in a multicenter cross-sectional study in Peru (N = 343). We recruited people from villages with distinct eating habits (high meat consumption, mixed, and limited meat consumption diet) in the Andes (Puno), and compared them to people living at sea level with a mixed diet (Lima). H. pylori infection prevalence was higher at high altitude than at sea level. High altitude, diet, and age showed a significant correlation with the severity of gastric disease, whereas H. pylori infection and sex did not. However, high altitude was not found to be a risk factor for intestinal metaplasia, while diet and age were. At high altitude, a meat-rich diet was associated with a higher incidence of metaplasia compared to a plant-based diet. This study provides a comparison of communities living at high altitude with spontaneously different diets, showing that high processed red meat consumption is a risk factor for gastric disease. Further studies are needed to explain this phenomenon and its impact on the development and progression of gastric pathologies.
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Affiliation(s)
- David Requena
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Bioinformatics Group in Multi-Omics and Immunology, New York, New York, USA
| | - Eduardo Ribas
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Robert H Gilman
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Jaime Cok
- Pathology Department, Hospital Nacional Cayetano Heredia, Lima, Peru
| | | | | | | | - Lisa Seidelmann
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Surgical Department, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Catherine H Miele
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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Alkhateeb MA, Aljarba NH, Yousafi Q, Anwar F, Biswas P. Elucidating gastric cancer mechanisms and therapeutic potential of Adociaquinone A targeting EGFR: A genomic analysis and Computer Aided Drug Design (CADD) approach. J Cell Mol Med 2024; 28:e70133. [PMID: 39434198 PMCID: PMC11493557 DOI: 10.1111/jcmm.70133] [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: 02/08/2024] [Revised: 05/05/2024] [Accepted: 09/09/2024] [Indexed: 10/23/2024] Open
Abstract
Gastric cancer predominantly adenocarcinoma, accounts for over 85% of gastric cancer diagnoses. Current therapeutic options are limited, necessitating the discovery of novel drug targets and effective treatments. The Affymetrix gene expression microarray dataset (GSE64951) was retrieved from NCBI-GEO data normalization and DEGs identification was done by using R-Bioconductor package. Gene Ontology (GO) analysis of DEGs was performed using DAVID. The protein-protein interaction network was constructed by STRING database plugin in Cytoscape. Subclusters/modules of important interacting genes in main network were extracted by using MCODE. The hub genes from in the network were identified by using Cytohubba. The miRNet tool built a hub gene/mRNA-miRNA network and Kaplan-Meier-Plotter conducted survival analysis. AutoDock Vina and GROMACS MD simulations were used for docking and stability analysis of marine compounds against the 5CNN protein. Total 734 DEGs (507 up-regulated and 228 down-regulated) were identified. Differentially expressed genes (DEGs) were enriched in processes like cell-cell adhesion and ATP binding. Eight hub genes (EGFR, HSPA90AA1, MAPK1, HSPA4, PPP2CA, CDKN2A, CDC20, and ATM) were selected for further analysis. A total of 23 miRNAs associated with hub genes were identified, with 12 of them targeting PPP2CA. EGFR displayed the highest expression and hazard rate in survival analyses. The kinase domain of EGFR (PDBID: 5CNN) was chosen as the drug target. Adociaquinone A from Petrosia alfiani, docked with 5CNN, showed the lowest binding energy with stable interactions across a 50 ns MD simulation, highlighting its potential as a lead molecule against EGFR. This study has identified crucial DEGs and hub genes in gastric cancer, proposing novel therapeutic targets. Specifically, Adociaquinone A demonstrates promising potential as a bioactive drug against EGFR in gastric cancer, warranting further investigation. The predicted miRNA against the hub gene/proteins can also be used as potential therapeutic targets.
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Affiliation(s)
| | - Nada H. Aljarba
- Department of Biology, College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadhSaudi Arabia
| | - Qudsia Yousafi
- Department of BiosciencesCOMSATS University Islamabad, Sahiwal CampusSahiwalPakistan
| | - Fatima Anwar
- Department of BiosciencesCOMSATS University Islamabad, Sahiwal CampusSahiwalPakistan
| | - Partha Biswas
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and BiotechnologyJashore University of Science and TechnologyJashoreBangladesh
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Mazurek M, Szewc M, Sitarz MZ, Dudzińska E, Sitarz R. Gastric Cancer: An Up-to-Date Review with New Insights into Early-Onset Gastric Cancer. Cancers (Basel) 2024; 16:3163. [PMID: 39335135 PMCID: PMC11430327 DOI: 10.3390/cancers16183163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 09/06/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
Gastric cancer (GC) is the fifth most frequently diagnosed cancer and the fifth most common cause of cancer death in the world. Regarding the age at which the diagnosis was made, GC is divided into early-onset gastric cancer (EOGC-up to 45 years of age) and conventional GC (older than 45). EOGC constitutes approximately 10% of all GCs. Numerous reports indicate that EOGC is more aggressive than conventional GC and is often discovered at an advanced tumor stage, which has an impact on the five-year survival rate. The median survival rate for advanced-stage GC is very poor, amounting to less than 12 months. Risk factors for GC include family history, alcohol consumption, smoking, Helicobacter pylori, and Epstein-Barr virus infection. It has been shown that a proper diet and lifestyle can play a preventive role in GC. However, research indicates that risk factors for conventional GC are less correlated with EOGC. In addition, the unclear etiology of EOGC and the late diagnosis of this disease limit the possibilities of effective treatment. Genetic factors are considered a likely cause of EOGC, as young patients are less exposed to environmental carcinogens. Research characterizing GC in young patients is scarce. This comprehensive study presents all aspects: epidemiology, risk factors, new treatment strategies, and future directions.
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Affiliation(s)
- Marek Mazurek
- Department of Surgical Oncology, Masovian Cancer Hospital, 05-135 Wieliszew, Poland;
| | - Monika Szewc
- Department of Normal, Clinical and Imaging Anatomy, Medical University of Lublin, 20-950 Lublin, Poland;
| | - Monika Z. Sitarz
- Department of Conservative Dentistry with Endodontics, Medical University of Lublin, 20-950 Lublin, Poland;
| | - Ewa Dudzińska
- Department of Dietetics and Nutrition Education, Medical University of Lublin, 20-950 Lublin, Poland;
| | - Robert Sitarz
- Department of Normal, Clinical and Imaging Anatomy, Medical University of Lublin, 20-950 Lublin, Poland;
- Department of Surgical Oncology, St. John’s Cancer Center, 20-090 Lublin, Poland
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Wang X, Zhao G, Shao S, Yao Y. Helicobacter pylori triggers inflammation and oncogenic transformation by perturbing the immune microenvironment. Biochim Biophys Acta Rev Cancer 2024; 1879:189139. [PMID: 38897421 DOI: 10.1016/j.bbcan.2024.189139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/09/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
The immune microenvironment plays a critical regulatory role in the pathogenesis of Helicobacter pylori (H. pylori). Understanding the mechanisms that drive the transition from chronic inflammation to cancer may provide new insights for early detection of gastric cancer. Although chronic inflammation is frequent in precancerous gastric conditions, the monitoring function of the inflammatory microenvironment in the progression from H. pylori-induced chronic inflammation to gastric cancer remains unclear. This literature review summarizes significant findings on how H. pylori triggers inflammatory responses and facilitates cancer development through the immune microenvironment. Furthermore, the implications for future research and clinical applications are also addressed. The review is divided into four main sections: inflammatory response and immune evasion mechanisms induced by H. pylori, immune dysregulation associated with gastric cancer, therapeutic implications, and future perspectives on H. pylori-induced gastric carcinogenesis with a focus on the immune microenvironment.
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Affiliation(s)
- Xiuping Wang
- Department of Clinical Laboratory, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangsu, China
| | - Guang Zhao
- Department of Clinical Laboratory, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangsu, China; Department of Emergency Medicine, Kunshan Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu, China
| | - Shihe Shao
- School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
| | - Yongliang Yao
- Department of Clinical Laboratory, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangsu, China.
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Herrera-Quintana L, Vázquez-Lorente H, Lopez-Garzon M, Cortés-Martín A, Plaza-Diaz J. Cancer and the Microbiome of the Human Body. Nutrients 2024; 16:2790. [PMID: 39203926 PMCID: PMC11357655 DOI: 10.3390/nu16162790] [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: 08/03/2024] [Revised: 08/16/2024] [Accepted: 08/20/2024] [Indexed: 09/03/2024] Open
Abstract
Cancer remains a public health concern worldwide, with its incidence increasing worldwide and expected to continue growing during the next decades. The microbiome has emerged as a central factor in human health and disease, demonstrating an intricate relationship between the microbiome and cancer. Although some microbiomes present within local tissues have been shown to restrict cancer development, mainly by interacting with cancer cells or the host immune system, some microorganisms are harmful to human health and risk factors for cancer development. This review summarizes the recent evidence concerning the microbiome and some of the most common cancer types (i.e., lung, head and neck, breast, gastric, colorectal, prostate, and cervix cancers), providing a general overview of future clinical approaches and perspectives.
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Affiliation(s)
- Lourdes Herrera-Quintana
- Department of Physiology, Schools of Pharmacy and Medicine, University of Granada, 18071 Granada, Spain; (L.H.-Q.); (H.V.-L.)
- Biomedical Research Center, Health Sciences Technology Park, University of Granada, 18016 Granada, Spain
| | - Héctor Vázquez-Lorente
- Department of Physiology, Schools of Pharmacy and Medicine, University of Granada, 18071 Granada, Spain; (L.H.-Q.); (H.V.-L.)
- Biomedical Research Center, Health Sciences Technology Park, University of Granada, 18016 Granada, Spain
| | - Maria Lopez-Garzon
- Biomedical Group (BIO277), Department of Physical Therapy, Health Sciences Faculty, University of Granada, 18171 Granada, Spain;
| | - Adrián Cortés-Martín
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), University of Granada, 18016 Granada, Spain;
- APC Microbiome Ireland, School of Microbiology, University College Cork, T12 YT20 Cork, Ireland
| | - Julio Plaza-Diaz
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria IBS.GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada
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Kim JH, Seo H, Kim S, Rahim MA, Jo S, Barman I, Tajdozian H, Sarafraz F, Song HY, Song YS. Different Prostatic Tissue Microbiomes between High- and Low-Grade Prostate Cancer Pathogenesis. Int J Mol Sci 2024; 25:8943. [PMID: 39201629 PMCID: PMC11354394 DOI: 10.3390/ijms25168943] [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: 06/28/2024] [Revised: 08/10/2024] [Accepted: 08/14/2024] [Indexed: 09/02/2024] Open
Abstract
Numerous human pathologies, such as neoplasia, are related to particular bacteria and changes in microbiome constituents. To investigate the association between an imbalance of bacteria and prostate carcinoma, the microbiome and gene functionality from tissues of patients with high-grade prostate tumor (HGT) and low-grade prostate tumor (LGT) were compared utilizing next-generation sequencing (NGS) technology. The results showed abnormalities in the bacterial profiles between the HGT and LGT specimens, indicating alterations in the make-up of bacterial populations and gene functionalities. The HGT specimens showed higher frequencies of Cutibacterium, Pelomonas, and Corynebacterium genera than the LGT specimens. Cell proliferation and cytokine assays also showed a significant proliferation of prostate cancer cells and elevated cytokine levels in the cells treated with Cutibacterium, respectively, supporting earlier findings. In summary, the HGT and LGT specimens showed differences in bacterial populations, suggesting that different bacterial populations might characterize high-grade and low-grade prostate malignancies.
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Affiliation(s)
- Jae Heon Kim
- Department of Urology, Soonchunhyang University School of Medicine, Seoul 04401, Republic of Korea
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
| | - Hoonhee Seo
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Sukyung Kim
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Md Abdur Rahim
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Sujin Jo
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Indrajeet Barman
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Hanieh Tajdozian
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Faezeh Sarafraz
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Asan 31151, Republic of Korea
- Human Microbiome Medical Research Center (HM-MRC), Soonchunhyang University, Asan 31538, Republic of Korea
| | - Yun Seob Song
- Department of Urology, Soonchunhyang University School of Medicine, Seoul 04401, Republic of Korea
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Alshaye NA, Alharbi NS, El-Atawy MA, El-Zawawy RO, Hamed EA, Elhag M, Ahmed HA, Omar AZ. Synthesis, DFT, and in silico biological evaluation of chalcone bearing pyrazoline ring against Helicobacter pylori receptors. Heliyon 2024; 10:e34540. [PMID: 39130476 PMCID: PMC11315094 DOI: 10.1016/j.heliyon.2024.e34540] [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: 05/06/2024] [Revised: 06/09/2024] [Accepted: 07/11/2024] [Indexed: 08/13/2024] Open
Abstract
Peptic ulcer disease (PUD), often caused by Helicobacter pylori infection, is a prevalent gastrointestinal condition characterized by the erosion of the gastric or duodenal mucosal lining. H. pylori adheres to gastric epithelial cells, secreting toxins and disrupting the stomach's defenses. H. pylori relies on various receptors to establish infection, making these molecules attractive therapeutic targets. This study aimed to develop novel anti-ulcer compounds by combining benzothiazole, pyrazoline, and chalcone pharmacophores. A series of chalcone derivatives 4a-c were synthesized via Claisen-Schmidt condensation and characterized using spectroscopic techniques such as FT-IR, NMR and elemental analysis. The DFT calculations, using B3LYP method with 6-311G basis set, revealed the p-tolyl derivative 4b exhibited the highest thermal stability while the p-bromophenyl derivative 4c showed the lowest stability but highest chemical reactivity. The HOMO-LUMO energy gaps as well as the dipole moments decreased in the order: 4b > 4a > 4c, reflecting a similar reactivity trend. Molecular docking showed ligands 4a-c bound effectively to the H. pylori urease enzyme, with docking scores from -5.3862 to -5.7367 kcal/mol with superior affinity over lansoprazole. Key interactions involved hydrogen bonds and hydrophobic pi-hydrogen bonds with distances ranging 3.46-4.34 Å with active site residues ASN666, SER714 and ASN810. The combined anti-inflammatory, antimicrobial, and H. pylori anti-adhesion properties make these novel chalcones promising PUD therapeutic candidates.
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Affiliation(s)
- Najla A. Alshaye
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Nuha Salamah Alharbi
- Chemistry Department, College of Science, Taibah University, Medina 30002, Saudi Arabia
| | - Mohamed A. El-Atawy
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, 21231, Egypt
| | - Reham O. El-Zawawy
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, 21231, Egypt
| | - Ezzat A. Hamed
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, 21231, Egypt
| | - Mohammed Elhag
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, 22511, Egypt
| | - Hoda A. Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Alaa Z. Omar
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, 22511, Egypt
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Bi X, Wang J, Liu C. Intratumoral Microbiota: Metabolic Influences and Biomarker Potential in Gastrointestinal Cancer. Biomolecules 2024; 14:917. [PMID: 39199305 PMCID: PMC11353126 DOI: 10.3390/biom14080917] [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: 07/10/2024] [Revised: 07/21/2024] [Accepted: 07/25/2024] [Indexed: 09/01/2024] Open
Abstract
Gastrointestinal (GI) cancers impose a substantial global health burden, highlighting the necessity for deeper understanding of their intricate pathogenesis and treatment strategies. This review explores the interplay between intratumoral microbiota, tumor metabolism, and major types of GI cancers (including esophageal, gastric, liver, pancreatic, and colorectal cancers), summarizing recent studies and elucidating their clinical implications and future directions. Recent research revealed altered microbial signatures within GI tumors, impacting tumor progression, immune responses, and treatment outcomes. Dysbiosis-induced alterations in tumor metabolism, including glycolysis, fatty acid metabolism, and amino acid metabolism, play critical roles in cancer progression and therapeutic resistance. The integration of molecular mechanisms and potential biomarkers into this understanding further enhances the prognostic significance of intratumoral microbiota composition and therapeutic opportunities targeting microbiota-mediated tumor metabolism. Despite advancements, challenges remain in understanding the dynamic interactions within the tumor microenvironment (TME). Future research directions, including advanced omics technologies and prospective clinical studies, offer promising avenues for precision oncology and personalized treatment interventions in GI cancer. Overall, integrating microbiota-based approaches and molecular biomarkers into GI cancer management holds promise for improving patient outcomes and survival.
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Affiliation(s)
- Xueyuan Bi
- Department of Pharmacy, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China
| | - Jihan Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China;
| | - Cuicui Liu
- Department of Science and Education, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China
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10
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Mascaretti F, Haider S, Amoroso C, Caprioli F, Ramai D, Ghidini M. Role of the Microbiome in the Diagnosis and Management of Gastroesophageal Cancers. J Gastrointest Cancer 2024; 55:662-678. [PMID: 38411876 DOI: 10.1007/s12029-024-01021-x] [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] [Accepted: 01/16/2024] [Indexed: 02/28/2024]
Abstract
PURPOSE Stomach and esophageal cancers are among the highest mortality from cancers worldwide. Microbiota has an interplaying role within the human gastrointestinal (GI) tract. Dysbiosis occurs when a disruption of the balance between the microbiota and the host happens. With this narrative review, we discuss the main alterations in the microbiome of gastroesophageal cancer, revealing its potential role in the pathogenesis, early detection, and treatment. RESULTS Helicobacter pylori plays a major role the development of a cascade of preneoplastic conditions ranging from atrophic gastritis to metaplasia and dysplasia, ultimately culminating in gastric cancer, while other pathogenic agents are Fusobacterium nucleatum, Bacteroides fragilis, Escherichia coli, and Lactobacillus. Campylobacter species (spp.)'s role in the progression of esophageal adenocarcinoma may parallel that of Helicobacter pylori in the context of gastric cancer, with other esophageal carcinogenic agents being Escherichia coli, Bacteroides fragilis, and Fusobacterium nucleatum. Moreover, gut microbiome could significantly alter the outcomes of chemotherapy and immunotherapy. The gut microbiome can be modulated through interventions such as antibiotics, probiotics, or prebiotics intake. Fecal microbiota transplantation has emerged as a therapeutic strategy as well. CONCLUSIONS Nowadays, it is widely accepted that changes in the normal gut microbiome causing dysbiosis and immune dysregulation play a role gastroesophageal cancer. Different interventions, including probiotics and prebiotics intake are being developed to improve therapeutic outcomes and mitigate toxicities associated with anticancer treatment. Further studies are required in order to introduce the microbiome among the available tools of precision medicine in the field of anticancer treatment.
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Affiliation(s)
- Federica Mascaretti
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Salman Haider
- Department of Internal Medicine, Brooklyn Hospital Center, Brooklyn, New York, NY, USA
| | - Chiara Amoroso
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Flavio Caprioli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Daryl Ramai
- Division of Gastroenterology and Hepatology, University of Utah Health, Salt Lake City, UT, USA
| | - Michele Ghidini
- Medical Oncology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Via Sforza 28, Milan, Italy.
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11
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Wei X, Wang F, Tan P, Huang H, Wang Z, Xie J, Wang L, Liu D, Hu Z. The interactions between traditional Chinese medicine and gut microbiota in cancers: Current status and future perspectives. Pharmacol Res 2024; 203:107148. [PMID: 38522760 DOI: 10.1016/j.phrs.2024.107148] [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: 12/29/2023] [Revised: 03/01/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
The gut microbiota, known as the "forgotten organ" and "human second genome," comprises a complex microecosystem. It significantly influences the development of various tumors, including colorectal, liver, stomach, breast, and lung cancers, through both direct and indirect mechanisms. These mechanisms include the "gut-liver" axis, the "lung-intestine" axis, and interactions with the immune system. The intestinal flora exhibits dual roles in cancer, both promoting and suppressing its progression. Traditional Chinese medicine (TCM) can alter cancer progression by regulating the intestinal flora. It modifies the intestinal flora's composition and structure, along with the levels of endogenous metabolites, thus affecting the intestinal barrier, immune system, and overall body metabolism. These actions contribute to TCM's significant antitumor effects. Moreover, the gut microbiota metabolizes TCM components, enhancing their antitumor properties. Therefore, exploring the interaction between TCM and the intestinal flora offers a novel perspective in understanding TCM's antitumor mechanisms. This paper succinctly reviews the association between gut flora and the development of tumors, including colorectal, liver, gastric, breast, and lung cancers. It further examines current research on the interaction between TCM and intestinal flora, with a focus on its antitumor efficacy. It identifies limitations in existing studies and suggests recommendations, providing insights into antitumor drug research and exploring TCM's antitumor effectiveness. Additionally, this paper aims to guide future research on TCM and the gut microbiota in antitumor studies.
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Affiliation(s)
- Xuejiao Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Fei Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Peng Tan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Huiming Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Zhuguo Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jinxin Xie
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Longyan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Dongxiao Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China; Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Zhongdong Hu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Yu B, de Vos D, Guo X, Peng S, Xie W, Peppelenbosch MP, Fu Y, Fuhler GM. IL-6 facilitates cross-talk between epithelial cells and tumor- associated macrophages in Helicobacter pylori-linked gastric carcinogenesis. Neoplasia 2024; 50:100981. [PMID: 38422751 PMCID: PMC10912637 DOI: 10.1016/j.neo.2024.100981] [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: 11/30/2023] [Revised: 01/31/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
PURPOSE Helicobacter pylori (H. pylori) is a significant risk factor for development of gastric cancer (GC), one of the deadliest malignancies in the world. However, the mechanism by which H. pylori induces gastric oncogenesis remains unclear. Here, we investigated the function of IL-6 in gastric oncogenesis and macrophage-epithelial cell interactions. METHODS We analyzed publicly available datasets to investigate the expression of IL-6 and infiltration of M2 macrophages in GC tissues, and determine the inter-cellular communication in the context of IL-6. Human gastric epithelial and macrophage cell lines (GES-1 and THP-1-derived macrophages, respectively) were used in mono- and co-culture experiments to investigate autocrine-and paracrine induction of IL-6 expression in response to H. pylori or IL-6 stimulation. RESULTS We found that IL-6 is highly expressed in GC and modulates survival. M2 macrophage infiltration is predominant in GC and drives an IL-6 mediated communication with gastric epithelium cells. In vitro, IL-6 triggers its own expression in GES-1 and THP-1-derived macrophages cells. In addition, these cell lines are able to upregulate each other's IL-6 levels in an autocrine fashion, which is enhanced by H. pylori stimulation. CONCLUSION This study indicates that IL-6 in the tumor microenvironment is essential for intercellular communication. We show that H. pylori enhances an IL-6-driven autocrine and paracrine positive feedback loop between macrophages and gastric epithelial cells, which may contribute to gastric carcinogenesis.
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Affiliation(s)
- Bingting Yu
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, Dr Molewaterplein 40, Rotterdam, GD 3015, the Netherlands
| | - Danny de Vos
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, Dr Molewaterplein 40, Rotterdam, GD 3015, the Netherlands; Department of Infectious Diseases, Leiden University Medical Centre, the Netherlands; Department of Parasitology, Leiden University Medical Centre, the Netherlands
| | - Xiaopei Guo
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, Dr Molewaterplein 40, Rotterdam, GD 3015, the Netherlands
| | - SanFei Peng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenjie Xie
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, Dr Molewaterplein 40, Rotterdam, GD 3015, the Netherlands
| | - Yang Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Gwenny M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, Dr Molewaterplein 40, Rotterdam, GD 3015, the Netherlands.
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13
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Lan ZZ, Sun FH, Chen C, Niu L, Shi JD, Zhang WY. CircPRDM5 inhibits the proliferation, migration, invasion, and glucose metabolism of gastric cancer cells by reducing GCNT4 expression in a miR-485-3p-dependent manner. Kaohsiung J Med Sci 2024; 40:231-243. [PMID: 38180297 DOI: 10.1002/kjm2.12799] [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: 06/08/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 01/06/2024] Open
Abstract
Circular RNA (circRNA) plays a key part in the pathological process of gastric cancer (GC). The study is organized to analyze the function of circPRDM5 in GC cell tumor properties. Expression levels of circPRDM5, miR-485-3p, glucosaminyl (N-acetyl) transferase 4 (GCNT4), ki67, E-cadherin, N-cadherin, and hexokinase 2 (HK2) were analyzed by quantitative real-time polymerase chain reaction (PCR), Western blotting or immunohistochemistry assay. Cell proliferation was assessed by cell colony formation assay and 5-ethynyl-2'-deoxyuridine assay. Cell migration and invasion were investigated by transwell assay. Glycolysis was evaluated by the Seahorse XF Glycolysis Stress Test Kit. Dual-luciferase reporter assay and RNA pull-down assay were performed to identify the associations among circPRDM5, miR-485-3p, and GCNT4. Xenograft mouse model assay was conducted to determine the effects of circPRDM5 on tumor formation in vivo. CircPRDM5 and GCNT4 expression were downregulated, while miR-485-3p expression was upregulated in GC tissues and cells when compared with paracancerous tissues or human gastric epithelial cells. CircPRDM5 overexpression inhibited proliferation, migration, invasion, and glucose metabolism of GC cells; however, circPRDM5 depletion had the opposite effects. CircPRDM5 repressed tumor properties of GC cells in vivo. MiR-485-3p restoration relieved circPRDM5-induced effects in GC cells. GCNT4 overexpression remitted the promoting effects of miR-485-3p mimics on GC cell malignancy. CircPRDM5 acted as a sponge for miR-485-3p, and GCNT4 was identified as a target gene of miR-485-3p. Moreover, circPRDM5 regulated GCNT4 expression by interacting with miR-485-3p.CircPRDM5 acted as a miR-485-3p sponge to inhibit GC progression by increasing GCNT4 expression, proving a potential target for GC therapy.
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Affiliation(s)
- Zhang-Zhang Lan
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Feng-Hua Sun
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chuan Chen
- Department of Research and Development, Shenzhen Cheerland Biotechnology Co., Ltd, Shenzhen, China
| | - Li Niu
- Department of Research and Development, CheerLand Clinical Laboratory Co., Ltd, Shenzhen, China
| | - Jing-Dong Shi
- Department of General Surgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wen-Yong Zhang
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
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14
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Ali A, AlHussaini KI. Helicobacter pylori: A Contemporary Perspective on Pathogenesis, Diagnosis and Treatment Strategies. Microorganisms 2024; 12:222. [PMID: 38276207 PMCID: PMC10818838 DOI: 10.3390/microorganisms12010222] [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: 12/14/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Helicobacter pylori (H. pylori) is a Gram-negative bacterium that colonizes the gastric mucosa and is associated with various gastrointestinal disorders. H. pylori is a pervasive pathogen, infecting nearly 50% of the world's population, and presents a substantial concern due to its link with gastric cancer, ranking as the third most common cause of global cancer-related mortality. This review article provides an updated and comprehensive overview of the current understanding of H. pylori infection, focusing on its pathogenesis, diagnosis, and treatment strategies. The intricate mechanisms underlying its pathogenesis, including the virulence factors and host interactions, are discussed in detail. The diagnostic methods, ranging from the traditional techniques to the advanced molecular approaches, are explored, highlighting their strengths and limitations. The evolving landscape of treatment strategies, including antibiotic regimens and emerging therapeutic approaches, is thoroughly examined. Through a critical synthesis of the recent research findings, this article offers valuable insights into the contemporary knowledge of Helicobacter pylori infection, guiding both clinicians and researchers toward effective management and future directions in combating this global health challenge.
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Affiliation(s)
- Asghar Ali
- Clinical Biochemistry Laboratory, Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Khalid I. AlHussaini
- Department of Internal Medicine, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 4233-13317, Saudi Arabia
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15
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Shah D, Bentrem D. Environmental and Genetic Risk Factors for Gastric Cancer. Cancer Treat Res 2024; 192:1-17. [PMID: 39212913 DOI: 10.1007/978-3-031-61238-1_1] [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] [Indexed: 09/04/2024]
Abstract
Gastric cancer is a heterogeneous and prevalent disease. The traditional environmental exposures associated with elevated risk of gastric cancer are less prevalent in the USA today. Genetic risks and risks associated with inflammation remain. Most cases are sporadic, and familial clustering is observed in about 10% of the cases. Hereditary gastric cancer accounts for a very low percentage of cases. Here we review the genetic and environmental risk factors associated with the disease. In addition, we will review screening guidelines and current modalities that are available for screening in high-risk populations.
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Affiliation(s)
- Dhavan Shah
- Northwestern Quality Improvement, Research, and Education in Surgery, Department of Surgery, Feinberg School of Medicine, Northwestern University, Evanston, USA
| | - David Bentrem
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Evanston, USA.
- Jesse Brown VA Medical Center, Chicago, USA.
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16
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Liu Y, Wei D, Deguchi Y, Xu W, Tian R, Liu F, Xu M, Mao F, Li D, Chen W, Valentin LA, Deguchi E, Yao JC, Shureiqi I, Zuo X. PPARδ dysregulation of CCL20/CCR6 axis promotes gastric adenocarcinoma carcinogenesis by remodeling gastric tumor microenvironment. Gastric Cancer 2023; 26:904-917. [PMID: 37572185 PMCID: PMC10640489 DOI: 10.1007/s10120-023-01418-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023]
Abstract
BACKGROUND Peroxisome proliferator-activated receptor delta (PPARδ) promotes inflammation and carcinogenesis in many organs, but the underlying mechanisms remains elusive. In stomachs, PPARδ significantly increases chemokine Ccl20 expression in gastric epithelial cells while inducing gastric adenocarcinoma (GAC). CCR6 is the sole receptor of CCL20. Here, we examine the role of PPARδ-mediated Ccl20/Ccr6 signaling in GAC carcinogenesis and investigate the underlying mechanisms. METHODS The effects of PPARδ inhibition by its specific antagonist GSK3787 on GAC were examined in the mice with villin-promoter-driven PPARδ overexpression (PpardTG). RNAscope Duplex Assays were used to measure Ccl20 and Ccr6 levels in stomachs and spleens. Subsets of stomach-infiltrating immune cells were measured via flow cytometry or immunostaining in PpardTG mice fed GSK3787 or control diet. A panel of 13 optimized proinflammatory chemokines in mouse sera were quantified by an enzyme-linked immunosorbent assay. RESULTS GSK3787 significantly suppressed GAC carcinogenesis in PpardTG mice. PPARδ increased Ccl20 level to chemoattract Ccr6+ immunosuppressive cells, including tumor-associated macrophages, myeloid-derived suppressor cells and T regulatory cells, but decreased CD8+ T cells in gastric tissues. GSK3787 suppressed PPARδ-induced gastric immunosuppression by inhibiting Ccl20/Ccr6 axis. Furthermore, Ccl20 protein levels increased in sera of PpardTG mice starting at the age preceding gastric tumor development and further increased with GAC progression as the mice aged. GSK3787 decreased the PPARδ-upregulated Ccl20 levels in sera of the mice. CONCLUSIONS PPARδ dysregulation of Ccl20/Ccr6 axis promotes GAC carcinogenesis by remodeling gastric tumor microenvironment. CCL20 might be a potential biomarker for the early detection and progression of GAC.
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Affiliation(s)
- Yi Liu
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Daoyan Wei
- Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yasunori Deguchi
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Weiguo Xu
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Rui Tian
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Fuyao Liu
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Min Xu
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Fei Mao
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Donghui Li
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Weidong Chen
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Lovie Ann Valentin
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Eriko Deguchi
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - James C Yao
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Imad Shureiqi
- Rogel Cancer Center and Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Xiangsheng Zuo
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
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Li Z, Zhang Y, Mi C, Deng X, Wang X, Hu D, Yin K, Yin C, Zhao L, Shan B. Identification of the immunogenic membrane proteins, catalase, PgbA, and PgbB, as potential antigens against Helicobacter pylori. J Appl Microbiol 2023; 134:lxad218. [PMID: 37777837 DOI: 10.1093/jambio/lxad218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 08/24/2023] [Accepted: 09/29/2023] [Indexed: 10/02/2023]
Abstract
AIMS This study aims to investigate the specific membrane antigens that are targeted by antibodies raised against Helicobacter pylori. METHODS AND RESULTS Bovine milk antibodies were prepared using whole H. pylori, purified membrane proteins, or both. Enzyme-linked immunosorbent assay and sodium dodecyl sulfate-polyacrylamide gel electrophoresis experiments revealed that these immunogens triggered anti-H. pylori antibody production in milk. The highest antibody titer was induced by the mixture of whole bacteria and purified membrane proteins. The antibodies induced by mixed immunogens significantly inhibited H. pylori growth in vitro and were used to identify catalase, plasminogen-binding protein A (PgbA), and PgbB via western blotting, immunoprecipitation, and two-dimensional western blotting followed by liquid chromatography with tandem mass spectrophotometry. The immunogenicity of PgbA and PgbB was verified in mice vaccinated with their B-cell epitope vaccines. Following prophylactic vaccination of C57BL/6 mice, each of the three antigens alone and their combination reduced the weight loss in mice, increased antibody titers, and relieved the inflammatory status of the gastric mucosa following H. pylori infection. CONCLUSIONS Catalase, PgbA, and PgbB could serve as valuable membrane antigens for the development of anti-H. pylori immunotherapies.
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Affiliation(s)
- Zhirong Li
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
- Provincial Center for Clinical Laboratories, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Ying Zhang
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Chaoyi Mi
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Xiaoqing Deng
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Xian Wang
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang, Hebei 050000, China
| | - Dailun Hu
- Clinical College, Hebei Medical University, Shijiazhuang, Hebei 050020, China
| | - Kaige Yin
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Changfu Yin
- Clinical College, Hebei Medical University, Shijiazhuang, Hebei 050020, China
| | - Lianmei Zhao
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
| | - Baoen Shan
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China
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Paşaoğlu HE, Özcan TB, Öztürk Ç, Çelik E, Şavlı TB, Vartanoğlu T. Histopathological Findings in Turkish Patients Undergoing Sleeve Gastrectomy: Is Histopathologic Examination of Sleeve Gastrectomy Specimens Clinically Important? Obes Surg 2023; 33:2808-2815. [PMID: 37474865 DOI: 10.1007/s11695-023-06728-7] [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: 03/16/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
PURPOSE Sleeve gastrectomy (SG) is a widely used surgical method in the treatment of obesity. This study aimed to reveal the histopathological changes in SG materials and to investigate the prevalence of clinically important lesions requiring follow-up. MATERIALS AND METHODS Three hundred five patients' data who underwent SG were analyzed. Cases were divided into three groups as normal, chronic inactive gastritis (CIG), and chronic active gastritis (CAG). Age, gender, and body mass index (BMI) of the three groups and the differences in the gastritis parameters of CIG and CAG groups were compared. RESULTS Thirty-three patients (10.8%) were in the normal group, 145 (47.5%) were in the CIG group, and 127 (41.6%) were in the CAG group. Preoperative endoscopic examination was performed in all cases, but Helicobacter pylori (HP) treatment was not applied. HP were detected in 39.3%, atrophy in 3.9%, intestinal metaplasia (IM) in 4.9%, and lymphoid follicle (LF) in 30% of the cases. Inflammation, atrophy, IM, LF, and HP were significantly higher in the CAG group. The proton pump inhibitor (PPI)-related changes were seen in 20 cases and it was more frequent in the CIG group. Intramucosal signet ring cell carcinoma was detected in 1 case. Endocrine cell hyperplasia and dysplasia were present in 7 cases with CAG. Multiple grade 1 neuroendocrine tumors were detected in just 1 case. CONCLUSION In our SG specimens, HP and clinically important lesions were significantly higher in the CAG group. Pathological examination should be carefully done as the lesions detected in SG specimens can change patient management.
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Affiliation(s)
- Hüsniye Esra Paşaoğlu
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey.
| | - Tevhide Bilgen Özcan
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Çiğdem Öztürk
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey
- Pathology Department, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Elif Çelik
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey
- Pathology Department, Mardin State Hospital, Mardin, Turkey
| | - Tuğçe Bölme Şavlı
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey
- Pathology Department, Gaziantep Cengiz Gökçek Maternity and Children's Hospital, Gaziantep, Turkey
| | - Talar Vartanoğlu
- Pathology Department, Health Sciences University Bagcilar Training and Research Hospital, Istanbul, Turkey
- General Surgery Department, Istanbul Gaziosmanpasa Medical Park Hospital, Istanbul, Turkey
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Tobi M, Weinstein D, Kim M, Hatfield J, Sochacki P, Levi E, An T, Hamre M, Tolia V, Fligiel S, Marepally R, Hallman J, Bapat B, Yuan M, McVicker B, Gallinger S. Helicobacter pylori Status May Differentiate Two Distinct Pathways of Gastric Adenocarcinoma Carcinogenesis. Curr Oncol 2023; 30:7950-7963. [PMID: 37754493 PMCID: PMC10527591 DOI: 10.3390/curroncol30090578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/09/2023] [Accepted: 08/02/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND We evaluated the phenotype of sporadic gastric cancer based on HP status and binding of a tumor risk marker monoclonal, Adnab-9. METHODS We compared a familial GC kindred with an extremely aggressive phenotype to HP-positive (HP+) and -negative (HP-) sporadic gastric adenocarcinoma (GC) patients in the same community to determine if similar phenotypes exist. This might facilitate gene discovery to understand the pathogenesis of aggressive GC phenotypes, particularly with publications implicating immune-related gene-based signatures, and the development of techniques to gauge the stance of the innate immune system (InImS), such as the FERAD ratio (blood ferritin:fecal Adnab-9 binding OD-background binding). Resection specimens for the sporadic and familial group were stained for HP and examined for intestinal metaplasia (IM) and immunostaining for Adnab-9. Familial kindred specimens were also tested for the E-cadherin mutation and APC (adenomatous polyposis coli). Survival was evaluated. RESULTS Of 40 GC patients, 25% were HP+ with a greater proportion of intestinal metaplasia (IM) and gastric atrophy than the HP- group. The proband of the familial GC kindred, a 32-year-old mother with fatal GC, was survived by 13-year-old identical twins. Twin #1 was HP- with IM and Twin #2 was HP+. Both twins subsequently died of GC within two years. The twins did not have APC or E-cadherin mutations. The mean overall survival in the HP+ sporadic GC group was 2.47 ± 2.58 years and was 0.57 ± 0.60 years in the HP- group (p = 0.01). Survival in the kindred was 0.22 ± 0.24 years. Adnab-9 labeling was positive in fixed tissues of 50% of non-familial GC patients and in gastric tissue extract from Twin #2. The FERAD ratio was determined separately in six prospectively followed patient groups (n = 458) and was significantly lower in the gastric cancer patients (n = 10) and patients with stomach conditions predisposing them to GC (n = 214), compared to controls (n = 234 patients at increased risk for colorectal cancer but without cancer), suggesting a failure of the InImS. CONCLUSION The HP+ sporadic GC group appears to proceed through a sequence of HP infection, IM and atrophy before cancer supervenes, and the HP- phenotype appear to omit this sequence. The familial cases may represent a subset with both features, but the natural history strongly resembles that of the HP- group. Two different paths of carcinogenesis may exist locally for sporadic GC. The InImS may also be implicated in prognosis. Identifying these patients will allow for treatment stratification and early diagnosis to improve GC survival.
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Affiliation(s)
- Martin Tobi
- Department of Research and Development, John D. Dingell VAMC, Detroit, MI 48201, USA
| | - Douglas Weinstein
- Capital Health Medical Group, 2 Capital Way, Pennington, NJ 08534, USA
| | - Mijin Kim
- Gastroenterology Division, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - James Hatfield
- Department of Pathology, John D. Dingell VAMC, Detroit, MI 48201, USA (S.F.)
| | - Paula Sochacki
- Department of Pathology, John D. Dingell VAMC, Detroit, MI 48201, USA (S.F.)
| | - Edi Levi
- Gastroenterology Division, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Teisa An
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Merlin Hamre
- Department Pediatrics, Children’s Hospital, Detroit, MI 48201, USA
| | - Vasundhara Tolia
- Department Pediatrics, Children’s Hospital, Detroit, MI 48201, USA
| | - Suzanne Fligiel
- Department of Pathology, John D. Dingell VAMC, Detroit, MI 48201, USA (S.F.)
| | - Rama Marepally
- Department of Research and Development, John D. Dingell VAMC, Detroit, MI 48201, USA
| | - Jason Hallman
- Department of Research and Development, John D. Dingell VAMC, Detroit, MI 48201, USA
| | - Bharati Bapat
- Department of Medicine, Mt Sinai Hospital, Toronto, ON N5T 3H7, Canada
| | - Mei Yuan
- Division of General Surgery, Institute of Basic Medical Science of PLA Hospital, Beijing 100853, China
| | | | - Steven Gallinger
- Hepatobiliary/Pancreatic Surgical Oncology Program, University Health Network, Toronto, ON M5G 2M9, Canada
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Mauceri R, Coppini M, Vacca D, Bertolazzi G, Cancila V, Tripodo C, Campisi G. No Clear Clustering Dysbiosis from Salivary Microbiota Analysis by Long Sequencing Reads in Patients Affected by Oral Squamous Cell Carcinoma: A Single Center Study. Cancers (Basel) 2023; 15:4211. [PMID: 37686487 PMCID: PMC10486367 DOI: 10.3390/cancers15174211] [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: 06/29/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Advancements in DNA sequencing technology have facilitated the assessment of the connection between the oral microbiome and various diseases. The aim of the present study was to investigate the salivary microbiota composition employing for the first time in the literature the Oxford Nanopore Technology in patients affected by oral squamous cell carcinoma (OSCC). METHODS Unstimulated saliva samples of 31 patients were collected (24 OSCC patients and 7 controls). DNA was extracted using the QIAamp DNA Blood Kit and metagenomic long sequencing reads were performed using the MinION device. RESULTS In the OSCC group, 13 were males and 11 were females, with a mean age of 65.5 ± 13.9 years; in the control group, 5 were males and 2 were females, with a mean age of 51.4 ± 19.2 years. The border of the tongue was the most affected OSCC site. The microorganisms predominantly detected in OSCC patients were Prevotella, Chlamydia, Tissierellia, Calothrix, Leotiomycetes, Firmicutes and Zetaproteobacteria. CONCLUSIONS This study confirmed the predominance of periodontopathic bacteria in the salivary microbiome in the OSCC group. If a direct correlation between oral dysbiosis and OSCC onset was proven, it could lead to new prevention strategies and early diagnostic tools.
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Affiliation(s)
- Rodolfo Mauceri
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (R.M.); (D.V.); (G.C.)
- Unit of Oral Medicine and Dentistry for Frail Patients, Department of Rehabilitation, Fragility and Continuity of Care, University Hospital Palermo, 90127 Palermo, Italy
| | - Martina Coppini
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (R.M.); (D.V.); (G.C.)
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 90100 Messina, Italy
| | - Davide Vacca
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (R.M.); (D.V.); (G.C.)
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy; (G.B.); (V.C.); (C.T.)
| | - Giorgio Bertolazzi
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy; (G.B.); (V.C.); (C.T.)
- Department of Economics, Business and Statistics, University of Palermo, 90128 Palermo, Italy
| | - Valeria Cancila
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy; (G.B.); (V.C.); (C.T.)
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy; (G.B.); (V.C.); (C.T.)
| | - Giuseppina Campisi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (R.M.); (D.V.); (G.C.)
- Unit of Oral Medicine and Dentistry for Frail Patients, Department of Rehabilitation, Fragility and Continuity of Care, University Hospital Palermo, 90127 Palermo, Italy
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Kim JH, Seo H, Kim S, Ul-Haq A, Rahim MA, Jo S, Song HY, Song YS. Biochemical Recurrence in Prostate Cancer Is Associated with the Composition of Lactobacillus: Microbiome Analysis of Prostatic Tissue. Int J Mol Sci 2023; 24:10423. [PMID: 37445601 DOI: 10.3390/ijms241310423] [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: 05/25/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Many human pathologies, such as malignancy, are linked with specific bacteria and changes in the constituents of the microbiome. In order to examine the association between an imbalance of bacteria and prostate carcinoma, a comparison of the microbiomes present in patients with biochemical recurrence (BCR) or NO BCR (NBCR) was performed. Additionally, 16S rRNA-based next-generation sequencing was applied to identify the bacterial profiles within these tumors in terms of the bacteria and operational genes present. The percentage average taxonomic composition between the taxa indicated no difference between BCR and NBCR. In addition, alpha and beta diversity indices presented no distinction between the cohorts in any statistical method. However, taxonomic biomarker discovery indicated a relatively higher population of Lactobacillus in the NBCR group, and this finding was supported by PCR data. Along with that, differences in the operational activity of the bacterial genes were also determined. It is proposed that the biochemical recurrence was linked to the quantity of Lactobacillus present. The aim of this study was to investigate the microbiome involved in prostate carcinoma and the potential association between them.
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Affiliation(s)
- Jae Heon Kim
- Department of Urology, School of Medicine, Soonchunhyang University, Seoul 04401, Republic of Korea
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Chungnam 31151, Republic of Korea
| | - Hoonhee Seo
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Chungnam 31151, Republic of Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Sukyung Kim
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Asad Ul-Haq
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Md Abdur Rahim
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Chungnam 31151, Republic of Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Sujin Jo
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Chungnam 31151, Republic of Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Ho-Yeon Song
- Department of Microbiology and Immunology, School of Medicine, Soonchunhyang University, Chungnam 31151, Republic of Korea
- Probiotics Microbiome Convergence Center, Soonchunhyang University, Chungnam 31538, Republic of Korea
| | - Yun Seob Song
- Department of Urology, School of Medicine, Soonchunhyang University, Seoul 04401, Republic of Korea
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Shao-Hua Z, Lin-Lin R, Shen S, Yun-He T, Zi-Bin T, Yi L, Tao M. Atrophic gastritis rather than Helicobacter pylori infection can be an independent risk factor of colorectal polyps: a retrospective study in China. BMC Gastroenterol 2023; 23:213. [PMID: 37337163 DOI: 10.1186/s12876-023-02764-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 04/14/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Colonoscopy is considered the most effective screening method for colorectal polyps. However, the longevity and complexity of the procedure makes it less desirable to screen for colorectal polyps in the general population. Therefore, it is essential to identify other independent risk factors. In this study, we explored the link between Hp infection, atrophic gastritis, and colorectal polyps to identify a new potential risk factors of colorectal polyps. METHODS In this study, atrophic gastritis and intestinal polyps were diagnosed by endoscopy and pathology. All the 792 patients in this retrospective study were divided into sub-groups based on the presence of colorectal polyps. The correlation between polyps and atrophic gastritis was analyzed using the chi-square test and Kruskal-Wallis test. The receiver operating characteristic (ROC) curve was used to compare the predictive value for colorectal polyps between Hp infection and atrophic gastritis. Binary logistic regression was utilized to identify independent risk factors for colorectal polyps. RESULTS Patients with colorectal polyps were primarily male with advanced age, and the number of patients with colorectal polyps had a higher association with smoking, alcohol drinking, and Hp infection than the control group. A positive correlation between the number of colorectal polyps and the severity of atrophic gastritis was observed. ROC analysis showed that atrophic gastritis was a better risk factors for colorectal polyps. Multivariate analysis identified atrophic gastritis as an independent risk factor for colorectal polyps (OR 2.294; 95% CI 1.597-3.296). CONCLUSIONS Atrophic gastritis confirmed could be an independent risk factors for colorectal polyps.
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Affiliation(s)
- Zhang Shao-Hua
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China
| | - Ren Lin-Lin
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China
| | - Su Shen
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China
| | - Tang Yun-He
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China
| | - Tian Zi-Bin
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China
| | - Liu Yi
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China.
| | - Mao Tao
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong Province, China.
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Sezgin GC, Ocsoy I. Anthocyanin-rich black carrot (Daucus carota ssp. sativus var. atrorubens Alef.) and red cabbage (Brassica oleracea) extracts incorporated biosensor for colorimetric detection of Helicobacter pylori with color image processing. Braz J Microbiol 2023; 54:897-905. [PMID: 37155087 PMCID: PMC10235353 DOI: 10.1007/s42770-023-00989-1] [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: 11/29/2022] [Accepted: 04/23/2023] [Indexed: 05/10/2023] Open
Abstract
In this work, we developed novel colorimetric biosensors consisting of anthocyanin-rich either black carrot (Daucus carota ssp. sativus var. atrorubens Alef.) or red cabbage (Brassica oleracea) extracts for rapid, sensitive, and economic detection of Helicobacter pylori (H. pylori). We comparatively prepared two test solutions as biosensors including anthocyanin-rich black carrot extract (Anth@BCE) and red cabbage extract (Anth@RCE), both of which fixed to pH 2.5 and investigated their colorimetric responses based on electronic structure and electron density of anthocyanins. We successfully used anthocyanin-rich BCE and RCE as natural pH indicators in detection of H. pylori and introduced their advantages like non-toxicity, easy accessibility, and high stability compared to synthetic indicators. The BCE and RCE tests gave the best color change in the presence of 103 CFU/mL (at 60 min) and 104 CFU/mL (at 75 min) H. pylori suspensions prepared in an artificial gastric fluid. The limit of detection was down to 10 CFU/mL for RCE and BCE tests by increasing incubation time (≥ 5 h). We further made an additional study that color differences in the colorimetric responses observed by naked eyes were supported by digital image processing with RGB (Red Green Blue) and Delta-E (ΔE) analysis. It is confirmed that results evaluated by naked eyes and digital image processing are well consistent with each other. These findings proposed that these colorimetric tests can be implemented to pH dependent detection of various microorganisms and can be effectively transferred from laboratory work to clinics in the near future.
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