Caruso A, Stellini R, Scalzini A, Pollara P, Foresti I, Bonfanti C, Scura G, Gonzales R, Manca N, Turano A
Institute of Microbiology, University of Brescia, Italy.
J Clin Microbiol. 1989 Jun;27(6):1426-9. doi: 10.1128/jcm.27.6.1426-1429.1989.
Peripheral blood lymphocytes from a total of 111 patients and 40 healthy individuals were studied for gamma interferon (IFN-gamma) expression on their surfaces by indirect immunofluorescence assay and flow cytometry, with a new anti-IFN-gamma monoclonal antibody (IGMB-14) as a specific reagent. Of 64 patients with proven acute viral infections, 59 had a significantly higher percentage of lymphocytes expressing IFN-gamma on their membranes than healthy individuals did. On the other hand, only 3 (8.9%) of 34 patients with proven bacterial infections had an increased percentage of IFN-gamma-expressing lymphocytes. None of the eight patients with other infections and none of the five with systemic lupus erythematosus showed an increased percentage of IFN-gamma-positive lymphocytes. The percentage of IFN-gamma-expressing lymphocytes during a viral infection was found to be related to different stages of the disease. Finally, some applications of this rapid IFN-gamma assay method in viral diseases are discussed.
采用间接免疫荧光法和流式细胞术,以一种新型抗γ干扰素单克隆抗体(IGMB - 14)作为特异性试剂,研究了111例患者和40名健康个体外周血淋巴细胞表面γ干扰素(IFN - γ)的表达情况。在64例确诊为急性病毒感染的患者中,59例患者细胞膜上表达IFN - γ的淋巴细胞百分比显著高于健康个体。另一方面,在34例确诊为细菌感染的患者中,只有3例(8.9%)表达IFN - γ的淋巴细胞百分比有所增加。8例其他感染患者和5例系统性红斑狼疮患者中,均未发现IFN - γ阳性淋巴细胞百分比增加。发现病毒感染期间表达IFN - γ的淋巴细胞百分比与疾病的不同阶段有关。最后,讨论了这种快速IFN - γ检测方法在病毒疾病中的一些应用。