Vaccine development against Helicobacter pylori

Abstract

Helicobacter pylori (Hp) colonizes and persists in the gastric mucosa. It was the Class I carcinogenic factor, and the International Agency for Research on Cancer attributed 92% of stomach cancers to Hp, and according to data, nearly 50% of people in China are infected with Helicobacter pylori. At present, antibiotics are mainly used in clinical treatment, but with the increase of Hp resistance, antibiotics will lose their effect. The development of Hp vaccine has become a new way to prevent and control Hp infection. Components such as flagella, urease, virulence factors and outer membrane proteins involved in the process of Hp infection, colonization and reproduction, and have also become candidate antigens in the development of Hp vaccine. Specifically, study have suggested that flagellin vaccine can decrease infection rate. In the meantime, recombinant Hp antigens and dmLT were efficient for protection from the Hp infection. This article summarizes the progress of Hp vaccine research and development, hoping to provide reference for related research.