Expression of CD25high Regulatory T Cells and PD-1 in Gastric Infiltrating CD4+ T Lymphocytes in Patients with Helicobacter pylori Infection

摘要

We observed by flow cytometry that the frequency of both gastric infiltrating Tregs and PD-1-positive CD4 T cells is correlated with the density of Helicobacter pylori, suggesting that cellular immunity against this pathogen is inhibited.