Immunity againstHelicobacter pylori: Significance of Interleukin-4 Receptor α Chain Status and Gender of Infected Mice

Abstract
Vaccination of interleukin-4 (IL-4) receptor α (IL-4Rα) chain-deficient BALB/c mice withHelicobacter pyloriurease and cholera toxin or with urease-expressing, live attenuatedSalmonella entericaserovar Typhimurium cells revealed that protection againstH. pyloriinfection is independent of IL-4- or IL-13-mediated signals. A comparison of male and female mice suggests a sexual dimorphism in the extent of bacterial colonization that is particularly evident in the absence of the IL-4Rα chain.