title: Tumor induction by direct injection of cloned v-src DNA into chickens.
abstract: The in vitro transforming potential of Rous sarcoma viruses has been shown to reside in a gene segment, v-src. To provide direct proof that the isolated v-src sequence contains all the information necessary for sarcoma induction in vivo, we have injected subgenomic and genomic cloned DNA carrying v-src directly into chickens. We report that v-src, without the complements of other viral genes, can effectively induce sarcomas in the host within weeks after injection. The sarcoma tumors generated by subgenomic v-src DNA are of mono- or oligoclonal origin. They have acquired v-src sequences in the genome and expressed high levels of src messages. Intact long terminal repeats do not seem to be essential in the tumorigenic process.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000235:genetics*; D001483:Base Sequence; D002471:Cell Transformation, Neoplastic; D002645:Chickens; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D004279:DNA, Viral / Q000235:genetics*; D005796:Genes; D005814:Genes, Viral; D009693:Nucleic Acid Hybridization; D001357:Sarcoma, Avian / Q000382:microbiology
chemical_list: D004279:DNA, Viral; D004262:DNA Restriction Enzymes