Immunity
Volume 50, Issue 6, 18 June 2019, Pages 1365-1379
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Review
Gut Mycobiota in Immunity and Inflammatory Disease

https://doi.org/10.1016/j.immuni.2019.05.023Get rights and content
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The mammalian intestine is colonized by a wealth of microorganisms—including bacteria, viruses, protozoa, and fungi—that are all integrated into a functional trans-kingdom community. Characterization of the composition of the fungal community—the mycobiota—has advanced further than the much-needed mechanistic studies. Recent findings have revealed roles for the gut mycobiota in the regulation of host immunity and in the development and progression of human diseases of inflammatory origin. We review these findings here while placing them in the context of the current understanding of the pathways and cellular networks that induce local and systemic immune responses to fungi in the gastrointestinal tract. We discuss gaps in knowledge and argue for the importance of considering bacteria-fungal interactions as we aim to define the roles of mycobiota in immune homeostasis and immune-associated pathologies.

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