Plotkin S A, Furukawa T, Zygraich N, Huygelen C
Infect Immun. 1975 Sep;12(3):521-7. doi: 10.1128/iai.12.3.521-527.1975.
A strain of human cytomegalovirus called Towne was isolated in WI-38 human fibrolast cell cultures from the urine of an infected infant. It was then passaged 125 times in WI-38, including three clonings, and a pool was prepared in the same cell substrate for use as a potential live attenuated vaccine. The Towne virus has a broad antigenicity and cross-reacts with the AD-169 strain. Several markers of the Towne virus were found which differentiated it from fresh isolates. One of these was resistance of the former to trypsin. The Towne virus was tested for freedom from oncogenicity or other harmful effects in preparation for tests in humans.
一种名为汤氏(Towne)的人巨细胞病毒株,是从一名受感染婴儿的尿液中,在WI-38人成纤维细胞培养物中分离出来的。然后它在WI-38细胞中传代125次,包括三次克隆,并在相同的细胞基质中制备了一批病毒,用作潜在的减毒活疫苗。汤氏病毒具有广泛的抗原性,并且与AD-169毒株有交叉反应。发现了汤氏病毒的几个特征,这些特征使其与新鲜分离株有所区别。其中之一是前者对胰蛋白酶具有抗性。为准备在人体中进行试验,对汤氏病毒进行了无致癌性或其他有害影响的检测。