title: Sarcoma growth in 15I5 x 7(2) chickens infected with avian sarcoma viruses of subgroup B or G.
abstract: A comparative study was made of sarcoma growth in 15I5 x 7(2) chickens infected in the wing web at 4 weeks of age with strains of subgroup B or G avian sarcoma viruses. Infection with sarcoma viruses of either subgroup B or G resulted in the formation of progressive wing web sarcomas at the site of inoculation. The survival times of the subgroup G virus-infected chickens were generally at least twice as great as the survival times of the subgroup B virus-infected chickens, which averaged 6-9 weeks postinoculation. At 5 weeks postinfection, a significantly higher titer of virus neutralizing antibody was detected in the subgroup G virus-infected chickens. Necropsy indicated that a high percentage of subgroup B virus-infected chickens exhibited fibrosarcomas at sites distal to the primary wing web sarcomas, whereas only a small percentage of subgroup G virus-infected chickens exhibited distal sarcomas. The results further indicated that the viral env gene is a determinant of the pattern of distal sarcoma formation.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D001358:Avian Sarcoma Viruses / Q000235:genetics* / Q000276:immunology; D002645:Chickens; D005814:Genes, Viral; D009500:Neutralization Tests; D009857:Oncogenes; D001357:Sarcoma, Avian / Q000276:immunology / Q000382:microbiology* / Q000473:pathology; D014759:Viral Envelope Proteins / Q000235:genetics* / Q000276:immunology
chemical_list: D000914:Antibodies, Viral; D014759:Viral Envelope Proteins