Introduction: Cystic echinococcosis (CE) is a chronic zoonotic disease caused by the larval stage of Echinococcus granulosus (E. granulosus), which affects domestic and wild carnivores as the definitive host and ungulates as intermediate hosts. In intermediate hosts, both Th1 and Th2 cells are involved in the immune responses to an echinoccocal infection. This study aimed to investigate production of IL-4, IL-10, and IFN-γ cytokines in peripheral blood mononuclear cells (PBMCs) of CE patients before and after surgical treatment.
Methods: To evaluate cytokine production in response to E. granulosus antigens, we investigated IL-4, IL-10, and IFN-γ production in PBMCs of 20 CE patients in response to hydatid cyst fluid antigen (HCF-Ag) before and after surgical treatment using ELISA.
Results: The mean IL-4 production from HCF-Ag stimulated PBMCs was significantly decreased (p < 0.05), while IFN-γ was significantly increased in HCF-Ag stimulated PBMCs in patients after surgery (p = 0.005). Furthermore, our results showed that there is no significant difference between IL-10 production in patients before and after treatment (p = 0.562).
Conclusions: Our data Indicated production of IL-4 in cultured PBMCs of CE patients stimulated with HCF-Ag was decreased significantly. While, production of IFN-γ was increased significantly in responses to HCF Ag after surgery. We concluded that the evaluation of IL-4 and IFN-γ in HCF-Ag stimulated PBMCs of CE patients should be considered as a useful marker in the follow up of patients with cystic echinococcosis.
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