title: Protein concentrations and immunosuppressive properties of serum in chickens experimentally infected with avian tumor viruses.
abstract: Sera from chickens affected by Marek's disease or developing Rous sarcoma were investigated. There were changes in the protein fractions, and the amount of alpha and beta fractions was consistently increased. At the same time, immunosuppressive factors were found to inhibit the number of plaque-forming cells in the spleen of mice immunized with sheep red blood cells.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000302:isolation & purification; D001798:Blood Proteins / Q000032:analysis*; D002645:Chickens; D007165:Immunosuppression Therapy; D008380:Marek Disease / Q000097:blood* / Q000276:immunology; D001357:Sarcoma, Avian / Q000097:blood* / Q000276:immunology
chemical_list: D001798:Blood Proteins