Open AccessHeterogeneity and clonal relationships of adaptive immune cells in ulcerative colitis revealed by single-cell analyses
Author(s) -
Brigid S. Boland,
Zhaoren He,
Matthew Tsai,
Jocelyn G. Olvera,
Kyla Omilusik,
Han G. Duong,
Eleanor S. Kim,
Abigail E. Limary,
Wenhao Jin,
J. Justin Milner,
Bingfei Yu,
Shefali A. Patel,
Tiani L. Louis,
Tiffani Tysl,
Nadia Kurd,
Alexandra Bortnick,
Lauren K. Quezada,
Jad Kanbar,
A Miralles,
Danny Huylebroeck,
Mark A. Valasek,
Parambir S. Dulai,
Siddharth Singh,
Li-Fan Lu,
Jack D. Bui,
Cornelis Murre,
William J. Sandborn,
Ananda W. Goldrath,
G Yeo,
John T. Chang
Publication year - 2020
Publication title -
science immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 8.83
H-Index - 51
ISSN - 2470-9468
DOI - 10.1126/sciimmunol.abb4432
Subject(s) - ulcerative colitis , immune system , biology , colitis , immunology , cell , genetics , medicine , disease , pathology
Inflammatory bowel disease (IBD) encompasses a spectrum of gastrointestinal disorders driven by dysregulated immune responses against gut microbiota. We integrated single-cell RNA and antigen receptor sequencing to elucidate key components, cellular states, and clonal relationships of the peripheral and gastrointestinal mucosal immune systems in health and ulcerative colitis (UC). UC was associated with an increase in IgG1 + plasma cells in colonic tissue, increased colonic regulatory T cells characterized by elevated expression of the transcription factor ZEB2, and an enrichment of a γδ T cell subset in the peripheral blood. Moreover, we observed heterogeneity in CD8 + tissue-resident memory T (T RM ) cells in colonic tissue, with four transcriptionally distinct states of differentiation observed across health and disease. In the setting of UC, there was a marked shift of clonally related CD8 + T RM cells toward an inflammatory state, mediated, in part, by increased expression of the T-box transcription factor Eomesodermin. Together, these results provide a detailed atlas of transcriptional changes occurring in adaptive immune cells in the context of UC and suggest a role for CD8 + T RM cells in IBD.