Bioactive peptides as alternative treatment for Helicobacter pylori infection DOI Open Access
Giselle Franca-Oliveira, Blanca Hernández‐Ledesma, Adolfo J. Martínez-Rodríguez

et al.

Bioactive Compounds in Health and Disease - Online ISSN 2574-0334 Print ISSN 2769-2426, Journal Year: 2024, Volume and Issue: 7(5), P. 245 - 264

Published: May 24, 2024

The infection and chronic inflammatory response generated by Helicobacter pylori is a global health concern. This pathogen characterized as major risk factor in the development of gastric cancer other diseases. Conventional eradication therapies are based on antibiotic regimens consequence there an increase antimicrobial resistance strains, besides potential side effects for host. Therefore, it necessary to explore new alternatives. review delves into realm peptides, exploring their efficacy against H. sourced from diverse origins. Furthermore, sheds light food-derived peptides exhibiting remarkable biological activity. These exhibit promising biomarkers associated with infection, demonstrating anti-inflammatory antioxidant properties validated through rigorous testing both cell animal models. Regarding activity, peptide VPY derived soybean sources such meat (β-Ala-His), egg (DEDTQAMPFR, DEDTQAMPF, MLGATSL, MSYSAGF, CR, FL, HC, LL, MK) milk (IPAV) have reported reduction cytokine IL-8, biomarker directly related infection. For (EAMAPK, AVPYPQ) Spirulina maxima (LDAVNR, MMLDF) reduced ROS levels could positive effect control Food-derived bioactive anti-adhesive were also discussed. They derive vegetable (corn, pea wheat) capable interacting host cells, interfering adherence pylori. avoid and/or mitigate undesired outcomes infectious diseases due possibility its application nutraceuticals food products, resulting preventive approach. Keywords: pylori, resistance,

Language: Английский

HtrA-Dependent E-Cadherin Shedding Impairs the Epithelial Barrier Function in Primary Gastric Epithelial Cells and Gastric Organoids DOI Open Access
Marina Canadas-Ortega,

Iris Mühlbacher,

Gernot Posselt

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(13), P. 7083 - 7083

Published: June 27, 2024

Impaired E-cadherin (Cdh1) functions are closely associated with cellular dedifferentiation, infiltrative tumor growth and metastasis, particularly in gastric cancer. The class-I carcinogen Helicobacter pylori (H. pylori) colonizes epithelial cells induces Cdh1 shedding, which is primarily mediated by the secreted bacterial protease high temperature requirement A (HtrA). In this study, we used human primary cell lines derived from gastroids mucosoids different healthy donors to investigate HtrA-mediated cleavage subsequent impact on pathogenesis a non-neoplastic context. We found severe impairment of HtrA-induced ectodomain 2D mucosoids. Since exhibit an intact apico-basal polarity, investigated transmigration across monolayer, was partially depolarized HtrA, as indicated microscopy, analyses transepithelial electrical resistance (TEER) colony forming unit (cfu) assays. Finally, CagA injection observed efficient translocation tyrosine phosphorylation and, lesser extent, similar effects summary, HtrA crucially important factor promoting multistep H. non-transformed organoid-based models.

Language: Английский

Citations

1

Helicobacter pylori vacA genes associated with gastric diseases in Trinidad and Tobago DOI Creative Commons
Chandrashekhar Unakal, Lemar Blake,

Gerard Farfan

et al.

IJID Regions, Journal Year: 2024, Volume and Issue: 14, P. 100498 - 100498

Published: Nov. 22, 2024

Language: Английский

Citations

1

Comparative Assessment of the Anti-Helicobacter pylori Activity and Gastroprotective Effects of Three Herbal Formulas for Functional Dyspepsia In Vitro DOI Creative Commons
Jing‐Hua Wang, Song-Yi Han,

Ji-Suk Kim

et al.

Cells, Journal Year: 2024, Volume and Issue: 13(11), P. 901 - 901

Published: May 24, 2024

Helicobacter pylori has been implicated in various gastrointestinal disorders, including functional dyspepsia. This study aimed to compare the anti-H. activity and gastroprotective effects of three typical herbal formulas used for disorders Korea: Shihosogan-tang (ST), Yijung-tang (YT), Pyeongwi-san (PS). Firstly, we assessed total phenolic flavonoid contents, as well antioxidative capacity. Additionally, evaluated antibacterial effect on H. using an ammonia assay, minimum inhibitory concentration (MIC) test, disk agar diffusion method. Furthermore, examined alterations gene expression tight junction proteins, pro-inflammatory cytokines, cellular vacuolation AGS cell model infected with pylori. While ST exhibited a higher content, superior free radical scavenging, inhibition compared YT PS, more evidently inhibited gastric morphological changes such vacuolation. All formulations significantly ameliorated inflammatory inflammation-related genes induced by infection. Overall, present vitro suggests that all possess potential ameliorating relatively excelling inhibiting infection inflammation, while potentially shows greater efficacy directly protecting mucosa.

Language: Английский

Citations

1

Occurrence of Helicobacter pylori in drinking water sources and antimicrobial resistance profile in the central region of Peru DOI Creative Commons
María Custodio, Raúl Montalvo,

Jhonatan Crispín-Ayala

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 11(1), P. e41533 - e41533

Published: Dec. 27, 2024

Contamination of drinking water by Helicobacter pylori can cause serious diseases, including cancer. The determinants the infection rate are socioeconomic status, low standard living and overcrowding. In addition, exposure to environmental sources contaminated with feces, such as vegetables, is another risk factor for infection. We analyzed occurrence H. in antimicrobial resistance profile central Peru. Water samples were collected from taps four provinces Junín region. Previously, biofilm sampling was performed internal surface taps. cultured on modified brain heart infusion blood agar at 37 °C under microaerophilic conditions seven days. Antibiotic sensitivity determined Kirby Bauer diffusion method. results revealed that pH (9.25) turbidity (5.15 NTU) exceeded Peruvian quality standards water. amount free chlorine residual positive ranged 0.02 0.12 mg/L. present 2/192 tap (1.04 %) 3/192 (1.56 %). It observed 100 % isolates Chilca district showed nalidixic acid 66.67 both amoxicillin chloramphenicol. Resistance obtained El Tambo %. study findings reveal biofilms Chilca, Huamancaca chico districts region harbor pylori. They also variability pattern more than one antibiotic tested another.

Language: Английский

Citations

0

Bioactive peptides as alternative treatment for Helicobacter pylori infection DOI Open Access
Giselle Franca-Oliveira, Blanca Hernández‐Ledesma, Adolfo J. Martínez-Rodríguez

et al.

Bioactive Compounds in Health and Disease - Online ISSN 2574-0334 Print ISSN 2769-2426, Journal Year: 2024, Volume and Issue: 7(5), P. 245 - 264

Published: May 24, 2024

The infection and chronic inflammatory response generated by Helicobacter pylori is a global health concern. This pathogen characterized as major risk factor in the development of gastric cancer other diseases. Conventional eradication therapies are based on antibiotic regimens consequence there an increase antimicrobial resistance strains, besides potential side effects for host. Therefore, it necessary to explore new alternatives. review delves into realm peptides, exploring their efficacy against H. sourced from diverse origins. Furthermore, sheds light food-derived peptides exhibiting remarkable biological activity. These exhibit promising biomarkers associated with infection, demonstrating anti-inflammatory antioxidant properties validated through rigorous testing both cell animal models. Regarding activity, peptide VPY derived soybean sources such meat (β-Ala-His), egg (DEDTQAMPFR, DEDTQAMPF, MLGATSL, MSYSAGF, CR, FL, HC, LL, MK) milk (IPAV) have reported reduction cytokine IL-8, biomarker directly related infection. For (EAMAPK, AVPYPQ) Spirulina maxima (LDAVNR, MMLDF) reduced ROS levels could positive effect control Food-derived bioactive anti-adhesive were also discussed. They derive vegetable (corn, pea wheat) capable interacting host cells, interfering adherence pylori. avoid and/or mitigate undesired outcomes infectious diseases due possibility its application nutraceuticals food products, resulting preventive approach. Keywords: pylori, resistance,

Language: Английский

Citations

0