Evaluation of Susceptibility of the Human Pathogen Helicobacter pylori to the Antibiotic Capreomycin

Author:

Sukati Suriyan12ORCID,Sama-ae Imran1ORCID,Katzenmeier Gerd3ORCID,Wisessombat Sueptrakool14ORCID

Affiliation:

1. Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand

2. Hematology and Transfusion Science Research Center (HTSRC), Walailak University, Nakhon Si Thammarat 80160, Thailand

3. Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat 80160, Thailand

4. Center of Excellence Research for Melioidosis and Microorganisms (CERMM), Walailak University, Nakhon Si Thammarat 80160, Thailand

Abstract

Helicobacter pylori infection causes gastritis, peptic ulcer disease, mucosa-associated lymphoid tissue lymphoma, and gastric cancer and can also promote thrombosis. It is estimated that approximately 4.5 billion individuals are infected, thus rendering H. pylori the most prevalent microbial pathogen. Currently established regimes for antibiotic treatment are massively challenged by increasing drug resistance and the development of novel antimicrobial therapies is urgently required. The antibiotic capreomycin is clinically used against multiple drug-resistant strains of Mycobacterium tuberculosis. It targets the complex between TlyA, a hemolysin- and RNA-binding protein, and the bacterial rRNA. In this study we have explored the possible antibacterial effects of capreomycin against several strains of H. pylori and found only moderate activity which was comparable to metronidazole-resistant strains. Molecular docking of capreomycin to TlyA proteins from H. pylori and M. tuberculosis identified several residues within TlyA which interact with the drug; however, binding affinities of H. pylori– TlyA for capreomycin appear to be higher than those of Mycobacterium– TlyA. The data suggest that capreomycin may warrant further investigations into its potential use as antibiotic against H. pylori.

Funder

Walailak University

Publisher

Hindawi Limited

Subject

General Environmental Science,General Biochemistry, Genetics and Molecular Biology,General Medicine

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