Recombinant H. pylori catalase plus CT was used for immunization, and groups of mice were challenged with the Sydney strain of H. pylori. Immunization with recombinant catalase protected a significant proportion (9 of 10) of the mice from H. pylori challenge, indicating that this enzyme should be considered as a candidate for a future vaccine (Radcliff et al., 1997).
Significant protection against H. pylori colonisation was induced with rSOD, rKatA and rTpx individually (Stent et al., 2012).
Radcliff et al., 1997: Radcliff FJ, Hazell SL, Kolesnikow T, Doidge C, Lee A. Catalase, a novel antigen for Helicobacter pylori vaccination. Infection and immunity. 1997; 65(11); 4668-4674. [PubMed: 9353048].
Stent et al., 2012: Stent A, Every AL, Ng GZ, Chionh YT, Ong LS, Edwards SJ, Sutton P. Helicobacter pylori thiolperoxidase as a protective antigen in single- and multi-component vaccines. Vaccine. 2012; 30(50); 7214-7220. [PubMed: 23084846].