Helicobacter Pylori-oncogenic protein cytotoxin-associated gene A and assessment of CD14 and CD163 in duodenal ulcer and gastric cancer patients

Nearly half of the world's population is infected with Helicobacter pylori (H.pylori). A duodenal ulcer or stomach cancer can be caused by the infection by this bacterium. The aim of this work is to assess the levels of CD14 and CD163 in H.Pylori-positive patients infected with duodenal ulcer (DU) and gastric cancer (GC) and determine the prevalence of Helicobacter Pylori-oncogenic protein cytotoxin-associated gene A strains (H.pylori-CagA).  This study included 89 individuals distributed as follows: 20 healthy individuals as controls and 69 patients infected with H. Pylori have been divided as follows: 27 patients infected with H.pylori only (H.Pylori+), 22 H.pylori+DU and 20 H.pylori+GC. H. Pylori-oncogenic protein cytotoxin-associated gene A strains (H-pylori-CagA) were diagnosed based on a qualitative reverse-phase Enzyme Immunoassay Technique. CD163 and CD14 were measured in all individuals' serum using the Enzyme-Linked Immunoassay (ELISA) test.  Out of 69 patients infected with H.pylori, there was one CagA strain in H.pylori+; two and five strains were recorded in H.pylori+DU and H.pylori+GC, respectively. CD14 and CD163 serum concentrations were significantly higher (P≤0.05) in H. pylori+, H. pylori+DU and H. pylori+GC than in controls. Conclusions: Patients with CagA strains infection are at risk of developing a duodenal ulcer and stomach cancer.