Innate immune cell response to host-parasite interaction in a human intestinal tissue microphysiological system

Author:

Humayun Mouhita,Ayuso Jose M,Park Keon Young,Di Genova Bruno Martorelli,Skala Melissa,Kerr Sheena C,Knoll Laura J.,Beebe David J.

Abstract

AbstractProtozoan parasites that infect humans are widespread, and lead to varied clinical manifestations, including life-threatening illnesses in immunocompromised individuals. Animal models have provided insight into innate immunity against parasitic infections, however, species-specific differences and complexity of innate immune responses make translation to humans challenging. Thus, there is a need for novelin vitrosystems that can elucidate mechanisms of immune control and parasite dissemination. We have developed a human microphysiological system of intestinal tissue to evaluate parasite-immune-specific interactions during infection, which integrates primary intestinal epithelial cells and immune cells to investigate the role of innate immune cells during epithelial infection by the protozoan parasite, Toxoplasma gondii, which affects billions of people worldwide. Our data indicate that epithelial-infection by parasites stimulates a broad range of effector functions in neutrophils and NK cell-mediated cytokine production that play immunomodulatory roles, demonstrating the potential of our system for advancing the study of human-parasite interactions.TeaserNovel engineered model of human intestinal tissue for study of dissemination and immune control of parasitic infections.

Publisher

Cold Spring Harbor Laboratory

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