Galectin3 and CD16 play an important immunological role in patients infected with Salmonella typhi.

Abstract

Enteric fever caused by Salmonella typhi (S.typhi) is one of the most dangerous diseases in developing countries. The main aim of this work is study the immunological role of Galectin3 and CD16 in human infected with S.typhi. A total number of 60 outpatients infected with acute IgM and chronic IgG S.typhi were included in this study, serum concentration of Galectin3 and CD16 were measurement by Enzyme-linked Immune Sorbent Assay (ELISA) for each patient. The results proved that there was significant increase (P = < 0.0001***) in serum concentration of CD+16 between patients with acute S.typhi (IgM) (17.760 ± 0.72773 ng/ml) and healthy individuals (13.690 ± 0.36638 ng/ml). Also, there was significant increase (P = <0.0001***) in serum concentration of CD+16 between patients with chronic S.typhi (IgG) (20.348 ± 1.1848 ng/ml) and healthy individuals (13.690 ± 0.36638 ng/ml). Also; there was significant increase (P = 0.0011**) in serum concentration of Galectin3 between patients infected with acute S.typhi (IgM) (9.1485 ± 0.30444 ng/ml) and healthy individuals (7.1058 ± 0.50831 ng/ml) and there was significant increase (P value= 0.0004***) between patients infected with chronic S.typhi (IgG) (9.5004 ± 0.38143 ng/ml) and healthy individuals (7.1058 ± 0.50831 ng/ml). Conclusion: Natural killer cell (CD16) and Galectin3 have an important immunological role in patients infected with acute and chronic S.typhi infection. Therefore, Galectin3 and natural killer cell have synergistic immunological effect against S.typhi infection.