Hilkens J, van der Zeijst B, Buijs F, Kroezen V, Bleumink N, Hilgers J
J Virol. 1983 Jan;45(1):140-7. doi: 10.1128/JVI.45.1.140-147.1983.
Pseudotypes of vesicular stomatitis virus (VSV) containing envelope glycoproteins provided by C3H mammary tumor virus (MTV) instead of the normal VSV G-proteins were prepared and used to assay the presence of an MTV receptor on cells. The assay was specific as demonstrated by competition studies with excess MTV particles and neutralization of the pseudotypes with anti-MTV serum or monoclonal antibodies directed against MTV gp52. The MTV receptor was abundantly present on mouse cells but hardly detectable on nonmurine cells, including the Chinese hamster cell line E36. Somatic cell hybrids between E36 cells and GRS/A spontaneous leukemia cells (GRSL cells) and between E36 and GRS/A primary mammary tumor cells were made. The hybrids retained all Chinese hamster chromosomes but segregated mouse chromosomes. From the analysis of the isoenzymes and chromosomes of the hybrid cell lines we conclude that the gene for the receptor (MTVR-1) is located on mouse chromosome 16.
制备了含有C3H乳腺肿瘤病毒(MTV)提供的包膜糖蛋白而非正常水泡性口炎病毒(VSV)G蛋白的水泡性口炎病毒假型,并用于检测细胞上MTV受体的存在。竞争研究表明,该检测具有特异性,过量的MTV颗粒可与之竞争,抗MTV血清或针对MTV gp52的单克隆抗体可中和假型。MTV受体在小鼠细胞中大量存在,但在包括中国仓鼠细胞系E36在内的非小鼠细胞中几乎检测不到。构建了E36细胞与GRS/A自发白血病细胞(GRSL细胞)以及E36与GRS/A原发性乳腺肿瘤细胞之间的体细胞杂种。杂种保留了所有中国仓鼠染色体,但小鼠染色体发生了分离。通过对杂种细胞系的同工酶和染色体分析,我们得出结论,受体基因(MTVR-1)位于小鼠16号染色体上。