The Spectrum and Regulatory Landscape of Intestinal Innate Lymphoid Cells Are Shaped by the Microbiome

Meital Gury-BenAri, Christoph Alexander Thaiss, Nicolas Serafini, Deborah R Winter, Amir Giladi, Astiaso, David Lara Astiaso, Maayan Levy, Tomer Meir Salame, Assaf Weiner, Eyal David, Hagit Shapiro, Mally Dori-Bachash, Meirav Pevsner-Fischer, Vivas, Erika Lorenzo Vivas, Hadas Keren-Shaul, Franziska Paul, Alon Harmelin, Gerard Eberl, Shalev Itzkovitz, Amos TanaySanto, James P Di Santo, Eran Elinav, Ido Amit

Research output: Contribution to journalArticlepeer-review

Abstract

Innate lymphoid cells (ILCs) are critical modulators of mucosal immunity, inflammation, and tissue homeostasis, but their full spectrum of cellular states and regulatory landscapes remains elusive. Here, we combine genome-wide RNA-seq, ChIP-seq, and ATAC-seq tocompare the transcriptional and epigenetic identityof small intestinal ILCs, identifying thousands ofdistinct gene profiles and regulatory elements. Single-cell RNA-seq and flow and mass cytometry analyses reveal compartmentalization of cytokine expression and metabolic activity within the three classical ILC subtypes and highlight transcriptional states beyond the current canonical classification. In addition, using antibiotic intervention and germ-free mice, we characterize the effect of the microbiome on the ILC regulatory landscape and determine the response of ILCs to microbial colonization at the single-cell level. Together, our work characterizes the spectrum of transcriptional identities of small intestinal ILCs and describes how ILCs differentially integrate signals from the microbial microenvironment to generate phenotypic and functional plasticity.
Original languageEnglish
Pages (from-to)1231-1246.e13
Number of pages29
JournalCell
Volume166
Issue number5
DOIs
StatePublished - 25 Aug 2016

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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