Shamshul Ansari and Yoshio Yamaoka (2020) Role of vacuolating cytotoxin A in Helicobacter pylori infection and its impact on gastric pathogenesis. Expert Review of Anti-infective Therapy.
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Role of vacuolating cytotoxin A in Helicobacter pylori infection and its impact on gastric pathogenesis.pdf Download (39kB) | Preview |
Abstract
causes, via the influence of several virulence factors, persistent infection of the stomach, which leads to severe complications. Vacuolating cytotoxin A (VacA) is observed in almost all clinical strains of H. pylori; however, only some strains produce the toxigenic and pathogenic VacA, which is influenced by the gene sequence variations. VacA exerts its action by causing cell vacuolation and apoptosis. We performed a PubMed search to review the latest literatures published in English language. Areas covered Articles regarding H. pylori VacA and its genotypes, architecture, internalization, and role in gastric infection and pathogenicity are reviewed. We included the search for recently published literature until January 2020. Expert opinion H. pylori VacA plays a crucial role in severe gastric pathogenicity. In addition, VacA mediated in vivo bacterial survival leads to persistent infection and an enhanced bacterial evasion from the action of antibiotics and the innate host defense system, which leads to drug evasion. VacA as a co-stimulator for the CagA phosphorylation may exert a synergistic effect playing an important role in the CagA-mediated pathogenicity.
| Item Type: | Article |
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| Keyword: | H. pylori, Pathogenicity, VacA, VacA-mediated Apoptosis, Vacuolation |
| Subjects: | R Medicine > R Medicine (General) ?? RC0254 ?? |
| Department: | FACULTY > Faculty of Medicine and Health Sciences |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 11 Sep 2020 15:56 |
| Last Modified: | 11 Sep 2020 15:56 |
| URI: | https://eprints.ums.edu.my/id/eprint/25947 |
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