Title |
Interleukin-21-Producing CD4+ T Cells Promote Type 2 Immunity to House Dust Mites
|
---|---|
Published in |
Immunity, August 2015
|
DOI | 10.1016/j.immuni.2015.07.015 |
Pubmed ID | |
Authors |
Jonathan M. Coquet, Martijn J. Schuijs, Mark J. Smyth, Kim Deswarte, Rudi Beyaert, Harald Braun, Louis Boon, Gunilla B. Karlsson Hedestam, Steven L. Nutt, Hamida Hammad, Bart N. Lambrecht |
Abstract |
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. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 2 | 13% |
United Kingdom | 2 | 13% |
Sweden | 1 | 6% |
South Africa | 1 | 6% |
Belgium | 1 | 6% |
Italy | 1 | 6% |
Unknown | 8 | 50% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 7 | 44% |
Scientists | 6 | 38% |
Practitioners (doctors, other healthcare professionals) | 2 | 13% |
Science communicators (journalists, bloggers, editors) | 1 | 6% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Japan | 1 | <1% |
Sweden | 1 | <1% |
France | 1 | <1% |
Unknown | 150 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 33 | 22% |
Researcher | 27 | 18% |
Student > Master | 18 | 12% |
Student > Bachelor | 15 | 10% |
Professor | 10 | 7% |
Other | 25 | 16% |
Unknown | 25 | 16% |
Readers by discipline | Count | As % |
---|---|---|
Immunology and Microbiology | 46 | 30% |
Agricultural and Biological Sciences | 32 | 21% |
Medicine and Dentistry | 22 | 14% |
Biochemistry, Genetics and Molecular Biology | 19 | 12% |
Unspecified | 3 | 2% |
Other | 6 | 4% |
Unknown | 25 | 16% |