Published by Misasa Medical Center, Okayama University Medical School
Published by Misasa Medical Center, Okayama University Medical School

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岡大三朝分院研究報告 (63号-72号) 環境病態研報告 (57号-62号)
岡山大学温泉研究所報告 (5号-56号) 放射能泉研究所報告 (1号-4号)

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Activated blood T cells in patients with bronchial asthma. Relationship to asthmatic cycle.

Tanizaki, Yoshiro
Kitani, Hikaru
Mifune, Takashi
Kajimoto, Kazuhiro
Sugimoto, Keisuke
Yokota, Satoshi
Hiramatsu, Junichi
Kawaraya, Masashi
Harada, Hideo
Tada, Shinya
Kimura, Ikuro
Abstract
The number of CD4(+) T-Iymphocytes, CD4/CD8 ratio, and the number of IL2R(+) T-Iymphocytes (CD25) were examined in 14 patients with bronchial asthma, and the results were compared in three different asthma stages : symptom-free stage, wheeze stage, and attack stage. 1. The proportion of blood CD4(+) T-lymphocytes was more decreased in patients with asthma attacks than in those without symptoms. The CD4/CD8 ratio was also more decreased in patients with attacks than in those without symptoms. However, these differences were not significant. 2. The proportion of blood activated T cells (IL2R(+) cells, CD25) was significantly increased in patients with attacks than in those without symptoms. The proportion of activated T cells in 5 asthma patients was 2.9±0.8% in symptom-free stage and 6.6±1.1% in attack stage(p<0.001). These findings show that numbers of activated T-lymphocytes in peripheral blood were increased during asthma attacks, and this increase suggests the participation of activated T cells in the pathogenesis of asthma.
Keywords
CD4(+) T cells (CD4(+)リンパ球)
CD4/CD8 ratio (CD4/CD8比)
IL2R(+) T cells (IL2R(+)Tリンパ球)
bronchial asthma (気管支喘息)
ISSN
0918-7839
NCID
AN10430852