CD203c expression on human basophils is associated with asthma exacerbation

Background CD203c is a basophil cell surface marker used to diagnose and monitor various allergic diseases, but its relationship to asthma is not clear. Objective We determined whether CD203c expression levels are associated with stable and exacerbated asthma. Methods We used flow cytometry to compa...

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Published inJournal of allergy and clinical immunology Vol. 125; no. 2; pp. 483 - 489.e3
Main Authors Ono, Emiko, MD, PhD, Taniguchi, Masami, MD, PhD, Higashi, Noritaka, MD, PhD, Mita, Haruhisa, PhD, Kajiwara, Keiichi, Yamaguchi, Hiromichi, MD, Tatsuno, Sayaka, MD, Fukutomi, Yuma, MD, Tanimoto, Hidenori, MD, Sekiya, Kiyoshi, MD, Oshikata, Chiyako, MD, Tsuburai, Takahiro, MD, PhD, Tsurikisawa, Naomi, MD, PhD, Otomo, Mamoru, MD, PhD, Maeda, Yuji, MD, Hasegawa, Maki, MD, PhD, Miyazaki, Eishi, MD, PhD, Kumamoto, Toshihide, MD, PhD, Akiyama, Kazuo, MD
Format Journal Article
LanguageEnglish
Published New York, NY Mosby, Inc 01.02.2010
Elsevier
Elsevier Limited
Subjects
ENO
PEF
MFI
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Summary:Background CD203c is a basophil cell surface marker used to diagnose and monitor various allergic diseases, but its relationship to asthma is not clear. Objective We determined whether CD203c expression levels are associated with stable and exacerbated asthma. Methods We used flow cytometry to compare spontaneous expression levels of surface markers on basophils from patients with stable or exacerbated asthma and from healthy subjects. Longitudinal changes in these expression levels were measured after basophil stimulation by IgE-dependent or IgE-independent mechanisms and compared with patients' asthma status. Results Spontaneous expression levels of CD203c were significantly higher on basophils from patients with asthma exacerbation than patients with stable asthma or healthy subjects. In contrast, no differences in spontaneous expression levels of CD63 or CD69 were observed among the 3 groups. Anti-IgE–induced expression of CD203c significantly increased in basophils during asthma exacerbation ( P = .005). Low concentrations of Dermatophagoides pteronyssinus or IL-3 induced higher expression levels of CD203c during asthma exacerbation than during clinical improvement; induction of CD203c expression by these antigens therefore correlates with asthma control. In the patients with clinical improvement, there was a correlation between spontaneous CD203c expression levels and the percent predicted values of FEV1 ( r = -0.761; P = .022). Conclusion Asthma exacerbation was accompanied by increased expression of CD203c on basophils that decreased significantly during remission. Basophil expression levels of CD203c might therefore be used to monitor asthma in patients.
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ISSN:0091-6749
1097-6825
DOI:10.1016/j.jaci.2009.10.074