首页> 美国卫生研究院文献>Journal of Virology >Oncogene expression in reticuloendotheliosis virus-transformed lymphoid cell lines and avian tissues.
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Oncogene expression in reticuloendotheliosis virus-transformed lymphoid cell lines and avian tissues.

机译:网状内皮细胞病病毒转化的淋巴样细胞系和禽类组织中的癌基因表达。

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摘要

The genome of reticuloendotheliosis virus (REV-T) contains a unique oncogene, designated v-rel, which is inserted into the env region. Employing a cloned rel DNA probe, a single 2.9- to 3.0-kilobase v-rel mRNA was identified in poly(A)+ RNA from REV-T-transformed lymphoid cell lines. A 4.0-kilobase rel-specific transcript corresponding to the cellular homolog of the v-rel oncogene was identified in MSB-1 cells, a herpesvirus-transformed lymphoid cell line. Cytodot hybridization was used to quantitate the levels of rel, c-rel, c-myc, c-myb, c-abl, c-fms, c-Ha-ras, c-Ki-ras, c-src, c-yes, c-mos, and c-sis mRNA in REV-T-transformed cells. The levels of rel transcription in REV-T-transformed cells were elevated only two to eightfold over levels found in the transformed immature avian lymphoid cell line MSB-1. The relatively modest levels of rel transcription in REV-T-transformed cells and the significant differences between the lengths of the v-rel and c-rel mRNA suggest that REV-T transformation is the result of the production of an altered rel protein. The c-rel proto-oncogene is expressed in all avian hematopoietic tissues but is not expressed at significant levels in brain and muscle. The transcription of other proto-oncogenes is not enhanced in REV-T-transformed lymphoid cell lines.
机译:网状内皮内皮病病毒(REV-T)的基因组包含一个独特的癌基因,称为v-rel,插入到env区。使用克隆的rel DNA探针,从REV-T转化的淋巴样细胞系的poly(A)+ RNA中鉴定出一个2.9-3.0碱基对的v-rel mRNA。在疱疹病毒转化的淋巴样细胞系MSB-1细胞中鉴定出与v-rel致癌基因的细胞同源物相对应的4.0千碱基rel特异性转录物。 Cytodot杂交用于定量rel,c-rel,c-myc,c-myb,c-abl,c-fms,c-Ha-ras,c-Ki-ras,c-src,c-yes的水平REV-T转化的细胞中的c,mos和c-sis mRNA。 REV-T转化的细胞中的rel转录水平仅比转化的未成熟禽类淋巴样细胞系MSB-1中的水平提高了2到8倍。 REV-T转化细胞中rel转录的相对适中水平以及v-rel和c-rel mRNA长度之间的显着差异表明REV-T转化是改变的rel蛋白产生的结果。 c-rel原癌基因在所有禽类造血组织中表达,但在脑和肌肉中却不表达。在REV-T转化的淋巴样细胞系中,其他原癌基因的转录没有增强。

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