Hall N K, Deighton F, Larsh H W
Infect Immun. 1978 Feb;19(2):411-5. doi: 10.1128/iai.19.2.411-415.1978.
An alkali-soluble water-soluble extract of Blastomyces dermatitidis yeast-phase cell walls was tested for its ability to elicit a response in lymphocytes isolated from the peripheral blood of Blastomyces-infected guinea pigs. Sequential preparations of the antigen were reproducible and specific in the in vitro lymphocyte transformation assay. Cross-reactivity of the antigen was not evident in lymphocyte transformation assays on lymphocytes obtained from Histoplasma-infected guinea pigs or from animals sensitized with complete Freund adjuvant. Fractionation of the antigen was accomplished on an isoelectric-focusing column, using a sucrose density gradient support. Components were assayed for activity in skin testing and lymphocyte transformation. Comparison of column fractions to the whole antigen showed greater response to the whole antigen in in vivo and in vitro assays.
对皮炎芽生菌酵母相细胞壁的碱溶性水溶性提取物进行了测试,以检测其引发从感染皮炎芽生菌的豚鼠外周血中分离的淋巴细胞产生反应的能力。在体外淋巴细胞转化试验中,抗原的连续制剂具有可重复性和特异性。在从感染组织胞浆菌的豚鼠或用完全弗氏佐剂致敏的动物获得的淋巴细胞的淋巴细胞转化试验中,抗原的交叉反应不明显。抗原的分级分离是在等电聚焦柱上进行的,使用蔗糖密度梯度支持物。对各组分进行皮肤试验和淋巴细胞转化活性测定。将柱分级分离物与全抗原进行比较,结果显示在体内和体外试验中,全抗原引起的反应更强。