Monocytes as primary defenders against Toxoplasma gondii infection.

Stephanie B Orchanian, Melissa B Lodoen

Trends in parasitology 2023 Oct

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Monocytes are recruited from the bone marrow to sites of infection where they release cytokines and chemokines, function in antimicrobial immunity, and differentiate into macrophages and dendritic cells to control infection. Although many studies have focused on monocyte-derived macrophages and dendritic cells, recent work has examined the unique roles of monocytes during infection to promote immune defense. We focus on the effector functions of monocytes during infection with the parasite Toxoplasma gondii, and discuss the signals that mobilize monocytes to sites of infection, their production of inflammatory cytokines and antimicrobial mediators, their ability to shape the adaptive immune response, and their immunoregulatory functions. Insights from other infections, including Plasmodium and Listeria are also included for comparison and context. Copyright © 2023 Elsevier Ltd. All rights reserved.

Citation

Stephanie B Orchanian, Melissa B Lodoen. Monocytes as primary defenders against Toxoplasma gondii infection. Trends in parasitology. 2023 Oct;39(10):837-849