Timonen T, Stenius-Aarniala B
Clin Exp Immunol. 1985 Jan;59(1):85-90.
Peripheral blood natural killer (NK) activity was analysed from 32 asthma patients and 13 control donors. Male patients and female patients with atopic asthma had significantly stronger NK activity against the leukaemic cell line K-562. Fractionation of patient mononuclear cells by discontinuous density gradient centrifugation suggested that large granular lymphocytes (LGL) were the main mediators of the NK activity in asthmatics. Based on the lytic unit calculations, the strong NK activity in asthmatics is mainly due to increased frequency of LGL in peripheral blood rather than activity of individual NK cells.
对32名哮喘患者和13名对照供血者的外周血自然杀伤(NK)活性进行了分析。患有特应性哮喘的男性和女性患者对白血病细胞系K-562具有显著更强的NK活性。通过不连续密度梯度离心对患者单核细胞进行分离,结果表明大颗粒淋巴细胞(LGL)是哮喘患者NK活性的主要介导者。基于裂解单位计算,哮喘患者较强的NK活性主要是由于外周血中LGL频率增加,而非单个NK细胞的活性增强。