Details

Autor(en) / Beteiligte

• Nishimura, Tomoe
• Kaminuma, Osamu
• Saeki, Mayumi
• Kitamura, Noriko
• Matsuoka, Kunie
• Yonekawa, Hiromichi
• Mori, Akio
• Hiroi, Takachika
• Yodoi, Junji

Titel

Essential Contribution of CD4+ T Cells to Antigen-Induced Nasal Hyperresponsiveness in Experimental Allergic Rhinitis

Ist Teil von

• PloS one, 2016, Vol.11 (1), p.e0146686-e0146686

Ort / Verlag

United States: Public Library of Science

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• Nasal hyperresponsiveness (NHR) is a characteristic feature of allergic rhinitis (AR); however, the pathogenesis of NHR is not fully understood. In this study, during the establishment of an experimental AR model using ovalbumin-immunized and -challenged mice, augmentation of the sneezing reaction in response to nonspecific proteins as well as a chemical stimulant was detected. Whether NHR is independent of mast cells and eosinophils was determined by using mast cell- and eosinophil-deficient mice. NHR was suppressed by treatment with anti-CD4 antibody, suggesting the pivotal contribution of CD4+ T cells. Furthermore, antigen challenge to mice to which in vitro-differentiated Th1, Th2, and Th17 cells but not naïve CD4+ T cells had been adoptively transferred led to the development of equivalent NHR. Since antigen-specific IgE and IgG were not produced in these mice and since antigen-specific IgE-transgenic mice did not develop NHR even upon antigen challenge, humoral immunity would be dispensable for NHR. CD4+ T cells play a crucial role in the pathogenesis of AR via induction of NHR, independent of IgE-, mast cell-, and eosinophil-mediated responses.