Preprint Article Version 1 This version is not peer-reviewed

Expression of Toll-Like Receptors (TLR2 and TLR4) in the Eyes of Mice Intranasally Infected with Acanthamoeba sp.

Version 1 : Received: 30 January 2019 / Approved: 31 January 2019 / Online: 31 January 2019 (07:00:38 CET)

How to cite: Kot, K.; Kosik-Bogacka, D.; Łanocha-Arendarczyk, N.; Wojtkowiak-Giera, A.; Kolasa-Wołosiuk, A. Expression of Toll-Like Receptors (TLR2 and TLR4) in the Eyes of Mice Intranasally Infected with Acanthamoeba sp.. Preprints 2019, 2019010320 (doi: 10.20944/preprints201901.0320.v1). Kot, K.; Kosik-Bogacka, D.; Łanocha-Arendarczyk, N.; Wojtkowiak-Giera, A.; Kolasa-Wołosiuk, A. Expression of Toll-Like Receptors (TLR2 and TLR4) in the Eyes of Mice Intranasally Infected with Acanthamoeba sp.. Preprints 2019, 2019010320 (doi: 10.20944/preprints201901.0320.v1).

Abstract

Toll-like receptors (TLRs) play a key role in the innate immune response to numerous pathogens, including Acanthamoeba sp. The aim of this study was to determine the expression of TLR2 and TLR4 in the eyes of mice following intranasal infection with Acanthamoeba sp. Amoebae used in this study were isolated from the bronchial aspirate of a patient with acute myeloid leukemia (AML) and atypical symptoms of pneumonia. We found statistically significant differences in the expression of TLR2 and TLR4 in the eyes of immunocompetent mice at 8, 16, and 24 days post Acanthamoeba sp. infection (dpi) compared to control. Immunosuppressed mice showed significant differences in the expression of TLR2 at 16 and 24 dpi compared to uninfected animals. Our results indicate that TLR2 and TLR4 are upregulated in the eyes of mice in response to Acanthamoeba sp. We suggest that it is possible for trophozoites to migrate through the optic nerve from the brain to the eyes.

Subject Areas

Acanthamoeba sp.; eyes; toll-like receptor 2 (TLR2); toll-like receptor 4 (TLR4)

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