alexa Immune response in symptomatic and asymptomatic neurocysticercosis.


Immunome Research

Author(s): Verma A, Prasad KN, Cheekatla SS, Nyati KK, Paliwal VK

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Innate immune system is crucial in the pathogenesis of neurocysticercosis (NCC) and helminth glycans can induce anti-inflammatory milieu via toll-like receptor 4 (TLR4) dependent mechanisms. The association of TLR4 and cytokines is yet to be explored in NCC. Therefore, the present study detected the serum levels of cytokines and soluble intercellular adhesion molecule (sICAM)-1 in asymptomatic and symptomatic NCC and their association with TLR4 expression. Sixty eight patients with NCC (asymptomatic, 36 and symptomatic, 32), and age and gender matched 37 healthy controls were enrolled to determine the levels of different pro- and anti-inflammatory cytokines, sICAM-1 in the serum by ELISA and expression of TLR4 in peripheral blood mononuclear cells (PBMCs) by flow cytometry. In asymptomatic NCC cases, the levels of IL-10 and IL-4 were significantly elevated compared to healthy controls and symptomatic NCC patients whereas the levels of IFN-γ, TNF-α, IL-17, IL-23 and sICAM-1 were higher in symptomatic NCC patients compared to healthy controls and asymptomatic NCC individuals. Frequency of TLR4 expressing PBMCs and CD14 positive cells were significantly higher in both groups of NCC. Although the number of TLR4 expressing cells was almost similar in both asymptomatic and symptomatic groups, the median fluorescence intensity was significantly higher in symptomatic group indicating that higher levels of TLR4 expression in symptomatic patients correlated with enhanced pro-inflammatory cytokine production.

This article was published in Med Microbiol Immunol. and referenced in Immunome Research

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