@article{d93250b74a4648e69ae622ba0c945d8b,
title = "Epithelial endoplasmic reticulum stress orchestrates a protective IgA response",
abstract = "Immunoglobulin A (IgA) is the major secretory immunoglobulin isotype found at mucosal surfaces, where it regulates microbial commensalism and excludes luminal factors from contacting intestinal epithelial cells (IECs). IgA is induced by both T cell-dependent and -independent (TI) pathways. However, little is known about TI regulation. We report that IEC endoplasmic reticulum (ER) stress induces a polyreactive IgA response, which is protective against enteric inflammation. IEC ER stress causes TI and microbiota-independent expansion and activation of peritoneal B1b cells, which culminates in increased lamina propria and luminal IgA. Increased numbers of IgA-producing plasma cells were observed in healthy humans with defective autophagy, who are known to exhibit IEC ER stress. Upon ER stress, IECs communicate signals to the peritoneum that induce a barrier-protective TI IgA response.",
keywords = "Animals, Autophagy, Autophagy-Related Proteins/genetics, Endoplasmic Reticulum Stress, Epithelial Cells/immunology, Humans, Immunity, Mucosal, Immunoglobulin A/immunology, Inflammation, Intestinal Mucosa/immunology, Mice, Mice, Inbred C57BL, Mice, Knockout, Plasma Cells/immunology, Tissue Culture Techniques, X-Box Binding Protein 1/genetics",
author = "Joep Grootjans and Niklas Krupka and Shuhei Hosomi and Matute, {Juan D} and Thomas Hanley and Svetlana Saveljeva and Thomas Gensollen and Jarom Heijmans and Hai Li and Limenitakis, {Julien P} and Ganal-Vonarburg, {Stephanie C} and Shengbao Suo and Luoma, {Adrienne M} and Yosuke Shimodaira and Jinzhi Duan and Shih, {David Q} and Conner, {Margaret E} and Glickman, {Jonathan N} and Fuhler, {Gwenny M} and Palm, {Noah W} and {de Zoete}, {Marcel R} and {van der Woude}, {C Janneke} and Guo-Cheng Yuan and Wucherpfennig, {Kai W} and Targan, {Stephan R} and Philip Rosenstiel and Flavell, {Richard A} and McCoy, {Kathy D} and Macpherson, {Andrew J} and Arthur Kaser and Blumberg, {Richard S}",
note = "Funding Information: This work was supported by NIH grants DK044319, DK051362, DK053056, and DK088199; the Harvard Digestive Diseases Center (HDDC) DK034854 (R.S.B.); the Wellcome Trust Senior Investigator Award 106260/Z/14/Z, Evelyn Trust 13/27 (A.K.); the HORIZON2020/European Research Council Consolidator Grant 648889 (A.K.); the National Institute for Health Research Cambridge BRC Cell Phenotyping Hub (A.K.); Rubicon grant 825.13.012, Netherlands Organization for Scientific Research (J.G.); JSPS KAKENHI grant number 2689323 and 16K19162, Japan Foundation for Applied Enzymology (S.H.); NIH and NIAID grants R01AI24998 and R21AI117220 (M.E.C); Deutsche Forschungsgemeinschaft grant KR 4749/1-1 (N.K.); NIH NCI grant R01 CA238039 (K.W.W.); DFG ExC Precision Medicine in Chronic Inflammation, H2020 SYSCID #733100 and DFG CRC1182, C2 (P.R.); and Pediatric Scientist Development Program K12-HD000850 (J.D.M.). The Howard Hughes Medical Institute supports R.A.F. Publisher Copyright: {\textcopyright} 2019 The Authors, some rights reserved. All rights reserved. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",
year = "2019",
month = mar,
day = "1",
doi = "10.1126/science.aat7186",
language = "English",
volume = "363",
pages = "993--998",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6430",
}