Helicobacter pylori Infection: Current Status and Future Prospects on Diagnostic, Therapeutic and Control Challenges

Antibiotics, Год журнала: 2023, Номер 12(2), С. 191 - 191

Опубликована: Янв. 17, 2023

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Evolution of Diagnostic Methods for Helicobacter pylori Infections: From Traditional Tests to High Technology, Advanced Sensitivity and Discrimination Tools

Diagnostics, Год журнала: 2022, Номер 12(2), С. 508 - 508

Опубликована: Фев. 16, 2022

Rapid diagnosis and treatment application in the early stages of H. pylori infection plays an important part inhibiting transmission this as bacterium is involved various gastric pathologies such gastritis, gastro-duodenal ulcer, even neoplasia. This review devoted to a quick overview conventional advanced detection techniques successfully applied context compelling need upgrade standards diagnostic methods which are currently being used. Selecting best method implies evaluating different features, use one or another test depending on accessibility, laboratories equipment, clinical conditions patients. paper aims expose for that available, highlighting their assets limitations. The perspectives advantages nanotechnology along with concept nano(bio)sensors development lab-on-chip devices tools detection, differentiation, discrimination also presented, by emphasizing multiple advantages: simple, fast, cost-effective, portable, miniaturized, small volume samples required, highly sensitive, selective. It generally accepted intelligent sensors will completely revolutionize acquisition procedure medical decision framework smart healthcare monitoring systems.

Язык: Английский

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A review of signal pathway induced by virulent protein CagA of Helicobacter pylori

Frontiers in Cellular and Infection Microbiology, Год журнала: 2023, Номер 13

Опубликована: Апрель 14, 2023

Gastric cancer (GC), a common and high-mortality disease, still occupies an important position in current research, Helicobacter pylori ( H. ) infection as its risk factor has been hot challenging research area. Among the numerous pathogenic factors of , virulence protein CagA widely studied only bacterial-derived oncoprotein. It was found that entering into gastric epithelial cells (GECs) can induce dysregulation multiple cellular pathways such MAPK signaling pathway, PI3K/Akt NF-κB Wnt/β-catenin JAK-STAT Hippo pathway through phosphorylation non-phosphorylation. These disordered cause pathological changes morphology, adhesion, polarity, proliferation, movement, other processes GECs, which eventually promotes occurrence GC. With deepening -related on CagA-induced abnormal updated deepened to some extent, so key activated by are used main stem sort out pathogenesis this paper, aiming provide new strategies for treatment GC future.

Язык: Английский

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Outer Membrane Vesicles (OMVs) as Biomedical Tools and Their Relevance as Immune-Modulating Agents against H. pylori Infections: Current Status and Future Prospects

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(10), С. 8542 - 8542

Опубликована: Май 10, 2023

Outer membrane vesicles (OMVs) are lipid-membrane-bounded nanoparticles that released from Gram-negative bacteria via vesiculation of the outer membrane. They have vital roles in different biological processes and recently, they received increasing attention as possible candidates for a broad variety biomedical applications. In particular, OMVs several characteristics enable them to be promising immune modulation against pathogens, such their ability induce host responses given resemblance parental bacterial cell. Helicobacter pylori (H. pylori) is common bacterium infects half world's population causes gastrointestinal diseases peptic ulcer, gastritis, gastric lymphoma, carcinoma. The current H. treatment/prevention regimens poorly effective limited success. This review explores status future prospects biomedicine with special focus on use potential candidate its associated diseases. emerging strategies can used design viable immunogenic discussed.

Язык: Английский

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Biofilm Formation as a Complex Result of Virulence and Adaptive Responses of Helicobacter pylori

Pathogens, Год журнала: 2020, Номер 9(12), С. 1062 - 1062

Опубликована: Дек. 18, 2020

Helicobacter pylori is a bacterium that capable of colonizing host for many years, often lifetime. The survival in the gastric environment enabled by production numerous virulence factors conditioning adhesion to mucosa surface, acquisition nutrients, and neutralization immune system activity. It increasingly recognized, however, adaptive mechanisms H. stomach may also be linked ability this pathogen form biofilms. Initially, biofilms produced were strongly associated scientists with water distribution systems considered as mechanism outside source fecal-oral infections. In course last 20 trend has changed now most attention focused on biomedical aspect structure its potential contribution therapeutic difficulties pylori. Taking into account fact, aim current review discuss phenomenon biofilm formation present resultant responses pylori, including morphological transformation, membrane vesicles secretion, matrix production, efflux pump activity, intermicrobial communication. These will context transcriptomic proteomic changes their modulating effect development complex structure.

Язык: Английский

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MicroRNA Modulation of Host Immune Response and Inflammation Triggered by Helicobacter pylori

International Journal of Molecular Sciences, Год журнала: 2021, Номер 22(3), С. 1406 - 1406

Опубликована: Янв. 30, 2021

Helicobacter pylori (H. pylori) remains the most-researched etiological factor for gastric inflammation and malignancies. Its evolution towards complications is dependent upon host immune response. Toll-like receptors (TLRs) recognize surface molecular patterns of bacterium, especially lipopolysaccharide (LPS), act pathways, which will finally lead to activation nuclear factor-kappa B (NF-kB), a transcription that stimulates release inflammatory cytokines. MicroRNAs (MiRNAs) finely modulate TLR signaling, but their expression also modulated by NF-kB-dependent pathways. This review aims focus several most researched miRNAs on this subject, with known implications in responses caused H. pylori, including let-7 family, miRNA-155, miRNA-146, miRNA-125, miRNA-21, miRNA-221. TLR–LPS interactions afferent pathways are regulated these miRNAs, can be considered as bridge, connects pre-neoplastic malignant lesions. Therefore, they could serve potential non-invasive biomarkers, capable discriminating infection, well its associated complications. Given data matter limited children, significant number future research has yet clarify exact involvement entities progression pylori-associated conditions.

Язык: Английский

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Biofilm Formation of Helicobacter pylori in Both Static and Microfluidic Conditions Is Associated With Resistance to Clarithromycin

Frontiers in Cellular and Infection Microbiology, Год журнала: 2022, Номер 12

Опубликована: Март 25, 2022

It is widely accepted that production of biofilm a protective mechanism against various type stressors, including exposure to antibiotics. However, the impact this structure on spread antibiotic resistance in Helicobacter pylori still poorly understood. Therefore, aim current research was determine relationship between formation and H. . The study carried out 24 clinical strains with different profiles (antibiotic-sensitive, mono-resistant, double-resistant multidrug-resistant) clarithromycin (CLR), metronidazole (MTZ) levofloxacin (LEV). Using static conditions crystal violet staining method, strong correlation observed CLR but not MTZ or LEV. Based obtained results, three strongest weakest producers were selected directed for set microfluidic experiments performed Bioflux system combined fluorescence microscopy. Under continuous flow conditions, it formed twice as much created significantly more eDNA particular proteins within matrix when compared weak producers. Additionally, noticed had higher tendency autoaggregation presented morphostructural differences (a greater cellular packing, shorter cells amount both OMVs flagella) relation counterparts. In conclusion, associated broad array phenotypical features translating ability formation.

Язык: Английский

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Current and Future Perspectives in the Diagnosis and Management of Helicobacter pylori Infection

Journal of Clinical Medicine, Год журнала: 2022, Номер 11(17), С. 5086 - 5086

Опубликована: Авг. 30, 2022

Helicobacter pylori (Hp) is a prevalent organism infecting almost half the global population. It significant concern, given its associated risk of gastric cancer, which third leading cause cancer death globally. Infection can be asymptomatic or present with dyspeptic symptoms. may also alarm symptoms in case progression to cancer. Diagnosis achieved non-invasively (breath tests, stool studies, serology) invasively (rapid urease test, biopsy, culture). Treatment involves acid suppression and regimens containing several antibiotics guided by resistance rates. Eradication essential, as it lowers complications Follow-up after eradication similarly important, remains. There have been many recent advances both diagnosis treatment Hp. In particular, biosensors effective diagnostic tools, nanotechnology, vaccines, potassium-competitive blockers prove enhancing

Язык: Английский

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Traditional and Modern Diagnostic Approaches in Diagnosing Pediatric Helicobacter pylori Infection

Children, Год журнала: 2022, Номер 9(7), С. 994 - 994

Опубликована: Июль 1, 2022

Helicobacter pylori (H. pylori) is the most common bacterial infection worldwide, usually acquired during childhood and related to gastric carcinogenesis adulthood. Therefore, its early proper diagnosis subsequent successful eradication represent cornerstones of cancer prevention. The aim this narrative review was assess traditional modern diagnostic methods in terms H. diagnosis. Several invasive non-invasive were described, each with pros cons. comprise endoscopy biopsy, rapid urease tests, histopathological exams, cultures biopsy-based molecular tests. Among these, probably available, accurate cost-effective test remains histology, albeit tests definitely remain despite their high costs. consist urea breath serology, stool antigens Urea are useful clinical practice both for monitoring after therapy. challenges lead a choice that must be based on virulence, environmental factors host peculiarities.

Язык: Английский

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Organoid: Bridging the gap between basic research and clinical practice

Cancer Letters, Год журнала: 2023, Номер 572, С. 216353 - 216353

Опубликована: Авг. 18, 2023

Язык: Английский

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