4.8 Article

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

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SCIENCE ADVANCES
卷 8, 期 18, 页码 -

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AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abm8012

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  1. NIH [R01AI144016, F31CA247248, R01CA186134]
  2. University of Wisconsin Carbone Cancer Center [NIH P30CA014520]

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The development of a human microphysiological system of intestinal tissue provides a new method for studying the interactions between parasites and immune cells, which is of great importance for understanding human parasitic infections.
Protozoan 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 in vitro systems 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 natural killer cell-mediated cytokine production that play immunomodulatory roles, demonstrating the potential of our system for advancing the study of human-parasite interactions.

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