MyD88 signalling in colonic mononuclear phagocytes drives colitis in IL-10-deficient mice
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MyD88 signalling in colonic mononuclear phagocytes drives colitis in IL-10-deficient mice. / Hoshi, Namiko; Schenten, Dominik; Nish, Simone A; Walther, Zenta; Gagliani, Nicola; Flavell, Richard A; Reizis, Boris; Shen, Zeli; Fox, James G; Iwasaki, Akiko; Medzhitov, Ruslan.
in: NAT COMMUN, Jahrgang 3, 2012, S. 1120.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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T1 - MyD88 signalling in colonic mononuclear phagocytes drives colitis in IL-10-deficient mice
AU - Hoshi, Namiko
AU - Schenten, Dominik
AU - Nish, Simone A
AU - Walther, Zenta
AU - Gagliani, Nicola
AU - Flavell, Richard A
AU - Reizis, Boris
AU - Shen, Zeli
AU - Fox, James G
AU - Iwasaki, Akiko
AU - Medzhitov, Ruslan
PY - 2012
Y1 - 2012
N2 - Commensal bacterial sensing by Toll-like receptors is critical for maintaining intestinal homeostasis, but can lead to colitis in the absence of interleukin-10. Although Toll-like receptors are expressed in multiple cell types in the colon, the cell type(s) responsible for the development of colitis are currently unknown. Here we generated mice that are selectively deficient in MyD88 in various cellular compartments in an interleukin-10(-/-) setting. Although epithelial expression of MyD88 was dispensable, MyD88 expression in the mononuclear phagocyte compartment was required for colitis development. Specifically, phenotypically distinct populations of colonic mononuclear phagocytes expressed high levels of interleukin-1β, interleukin-23 and interleukin-6, and promoted T-helper 17 responses in the absence of interleukin-10. Thus, gut bacterial sensing through MyD88 in mononuclear phagocytes drives inflammatory bowel disease when unopposed by interleukin-10.
AB - Commensal bacterial sensing by Toll-like receptors is critical for maintaining intestinal homeostasis, but can lead to colitis in the absence of interleukin-10. Although Toll-like receptors are expressed in multiple cell types in the colon, the cell type(s) responsible for the development of colitis are currently unknown. Here we generated mice that are selectively deficient in MyD88 in various cellular compartments in an interleukin-10(-/-) setting. Although epithelial expression of MyD88 was dispensable, MyD88 expression in the mononuclear phagocyte compartment was required for colitis development. Specifically, phenotypically distinct populations of colonic mononuclear phagocytes expressed high levels of interleukin-1β, interleukin-23 and interleukin-6, and promoted T-helper 17 responses in the absence of interleukin-10. Thus, gut bacterial sensing through MyD88 in mononuclear phagocytes drives inflammatory bowel disease when unopposed by interleukin-10.
KW - Animals
KW - Colitis
KW - Colon
KW - Enzyme-Linked Immunosorbent Assay
KW - Flow Cytometry
KW - Interleukin-10
KW - Interleukin-1beta
KW - Interleukin-23
KW - Interleukin-6
KW - Mice
KW - Myeloid Differentiation Factor 88
KW - Phagocytes
KW - Reverse Transcriptase Polymerase Chain Reaction
KW - Signal Transduction
KW - Journal Article
KW - Research Support, N.I.H., Extramural
KW - Research Support, Non-U.S. Gov't
U2 - 10.1038/ncomms2113
DO - 10.1038/ncomms2113
M3 - SCORING: Journal article
C2 - 23047678
VL - 3
SP - 1120
JO - NAT COMMUN
JF - NAT COMMUN
SN - 2041-1723
ER -