TY - JOUR
T1 - Goblet cell associated antigen passages support the induction and maintenance of oral tolerance
AU - Kulkarni, Devesha H.
AU - Gustafsson, Jenny K.
AU - Knoop, Kathryn A.
AU - McDonald, Keely G.
AU - Bidani, Shay S.
AU - Davis, Jazmyne E.
AU - Floyd, Alexandria N.
AU - Hogan, Simon P.
AU - Hsieh, Chyi Song
AU - Newberry, Rodney D.
N1 - Funding Information:
Supported by grants: DK097317, AI131342, AI112626, DK109006, AI136515, AI 140755, and Crohn’s and Colitis Foundation Research Fellowship Award 348359 and Swedish Research Council International Postdoc Award 2014-00366. The authors wish to thank Mark J Miller for advice and assistance with in vivo two-photon imaging. The Washington University Digestive Diseases Research Center Core, supported by NIH grant P30 DK052574 assisted with imaging. Two photon in vivo imaging was performed at the Washington University School of Medicine In Vivo Imaging Core. The High Speed Cell Sorter Core at the Alvin J. Siteman Cancer Center at Washington University School of Medicine and Barnes-Jewish Hospital in St. Louis, MO. provided flow-cytometric cell sorting services. The Siteman Cancer Center is supported in part by NCI Cancer Center Support Grant P30 CA91842.
Publisher Copyright:
© 2019, Society for Mucosal Immunology.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Tolerance to innocuous antigens from the diet and the commensal microbiota is a fundamental process essential to health. Why tolerance is efficiently induced to substances arising from the hostile environment of the gut lumen is incompletely understood but may be related to how these antigens are encountered by the immune system. We observed that goblet cell associated antigen passages (GAPs), but not other pathways of luminal antigen capture, correlated with the acquisition of luminal substances by lamina propria (LP) antigen presenting cells (APCs) and with the sites of tolerance induction to luminal antigens. Strikingly this role extended beyond antigen delivery. The GAP function of goblet cells facilitated maintenance of pre-existing LP T regulatory cells (Tregs), imprinting LP-dendritic cells with tolerogenic properties, and facilitating LP macrophages to produce the immunomodulatory cytokine IL-10. Moreover, tolerance to dietary antigen was impaired in the absence of GAPs. Thus, by delivering luminal antigens, maintaining pre-existing LP Tregs, and imprinting tolerogenic properties on LP-APCs GAPs support tolerance to substances encountered in the hostile environment of the gut lumen.
AB - Tolerance to innocuous antigens from the diet and the commensal microbiota is a fundamental process essential to health. Why tolerance is efficiently induced to substances arising from the hostile environment of the gut lumen is incompletely understood but may be related to how these antigens are encountered by the immune system. We observed that goblet cell associated antigen passages (GAPs), but not other pathways of luminal antigen capture, correlated with the acquisition of luminal substances by lamina propria (LP) antigen presenting cells (APCs) and with the sites of tolerance induction to luminal antigens. Strikingly this role extended beyond antigen delivery. The GAP function of goblet cells facilitated maintenance of pre-existing LP T regulatory cells (Tregs), imprinting LP-dendritic cells with tolerogenic properties, and facilitating LP macrophages to produce the immunomodulatory cytokine IL-10. Moreover, tolerance to dietary antigen was impaired in the absence of GAPs. Thus, by delivering luminal antigens, maintaining pre-existing LP Tregs, and imprinting tolerogenic properties on LP-APCs GAPs support tolerance to substances encountered in the hostile environment of the gut lumen.
UR - http://www.scopus.com/inward/record.url?scp=85076565712&partnerID=8YFLogxK
U2 - 10.1038/s41385-019-0240-7
DO - 10.1038/s41385-019-0240-7
M3 - Article
C2 - 31819172
AN - SCOPUS:85076565712
VL - 13
SP - 271
EP - 282
JO - Mucosal Immunology
JF - Mucosal Immunology
SN - 1933-0219
IS - 2
ER -