Interleukin-21-Producing CD4(+) T Cells Promote Type 2 Immunity to House Dust Mites
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Interleukin-21-Producing CD4(+) T Cells Promote Type 2 Immunity to House Dust Mites. / Coquet, Jonathan M; Schuijs, Martijn J; Smyth, Mark J; Deswarte, Kim; Beyaert, Rudi; Braun, Harald; Boon, Louis; Karlsson Hedestam, Gunilla B; Nutt, Steven L; Hammad, Hamida; Lambrecht, Bart N.
In: Immunity, Vol. 43, No. 2, 18.08.2015, p. 318-30.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Interleukin-21-Producing CD4(+) T Cells Promote Type 2 Immunity to House Dust Mites
AU - Coquet, Jonathan M
AU - Schuijs, Martijn J
AU - Smyth, Mark J
AU - Deswarte, Kim
AU - Beyaert, Rudi
AU - Braun, Harald
AU - Boon, Louis
AU - Karlsson Hedestam, Gunilla B
AU - Nutt, Steven L
AU - Hammad, Hamida
AU - Lambrecht, Bart N
N1 - Copyright © 2015 Elsevier Inc. All rights reserved.
PY - 2015/8/18
Y1 - 2015/8/18
N2 - Asthma is a T helper 2 (Th2)-cell-mediated disease; however, recent findings implicate Th17 and innate lymphoid cells also in regulating airway inflammation. Herein, we have demonstrated profound interleukin-21 (IL-21) production after house dust mite (HDM)-driven asthma by using T cell receptor (TCR) transgenic mice reactive to Dermatophagoides pteronyssinus 1 and an IL-21GFP reporter mouse. IL-21-producing cells in the mediastinal lymph node (mLN) bore characteristics of T follicular helper (Tfh) cells, whereas IL-21(+) cells in the lung did not express CXCR5 (a chemokine receptor expressed by Tfh cells) and were distinct from effector Th2 or Th17 cells. Il21r(-/-) mice developed reduced type 2 responses and the IL-21 receptor (IL-21R) enhanced Th2 cell function in a cell-intrinsic manner. Finally, administration of recombinant IL-21 and IL-25 synergistically promoted airway eosinophilia primarily via effects on CD4(+) lymphocytes. This highlights an important Th2-cell-amplifying function of IL-21-producing CD4(+) T cells in allergic airway inflammation.
AB - Asthma is a T helper 2 (Th2)-cell-mediated disease; however, recent findings implicate Th17 and innate lymphoid cells also in regulating airway inflammation. Herein, we have demonstrated profound interleukin-21 (IL-21) production after house dust mite (HDM)-driven asthma by using T cell receptor (TCR) transgenic mice reactive to Dermatophagoides pteronyssinus 1 and an IL-21GFP reporter mouse. IL-21-producing cells in the mediastinal lymph node (mLN) bore characteristics of T follicular helper (Tfh) cells, whereas IL-21(+) cells in the lung did not express CXCR5 (a chemokine receptor expressed by Tfh cells) and were distinct from effector Th2 or Th17 cells. Il21r(-/-) mice developed reduced type 2 responses and the IL-21 receptor (IL-21R) enhanced Th2 cell function in a cell-intrinsic manner. Finally, administration of recombinant IL-21 and IL-25 synergistically promoted airway eosinophilia primarily via effects on CD4(+) lymphocytes. This highlights an important Th2-cell-amplifying function of IL-21-producing CD4(+) T cells in allergic airway inflammation.
KW - Animals
KW - Antigens, Dermatophagoides/immunology
KW - Arthropod Proteins/immunology
KW - Asthma/immunology
KW - CD4-Positive T-Lymphocytes/immunology
KW - Cells, Cultured
KW - Cysteine Endopeptidases/immunology
KW - Eosinophilia/immunology
KW - Eosinophils/drug effects
KW - Immunity, Cellular
KW - Interleukins/administration & dosage
KW - Lung/immunology
KW - Mice
KW - Mice, Inbred C57BL
KW - Mice, Knockout
KW - Pyroglyphidae/immunology
KW - Receptors, Antigen, T-Cell/genetics
KW - Receptors, CXCR5/metabolism
KW - Receptors, Interleukin-21/administration & dosage
KW - Th2 Cells/immunology
U2 - 10.1016/j.immuni.2015.07.015
DO - 10.1016/j.immuni.2015.07.015
M3 - Journal article
C2 - 26287681
VL - 43
SP - 318
EP - 330
JO - Immunity
JF - Immunity
SN - 1074-7613
IS - 2
ER -
ID: 356968852