title: Novel antiviral activity found in the media of Sindbis virus-persistently infected mosquito (Aedes albopictus) cell cultures.
abstract: Aedes albopictus (mosquito) cells persistently infected with Sindbis virus for a period of 6 months release into the medium a low-molecular-weight material capable of specifically reducing the yields of Sindbis virus during the "acute phase" of infection in mosquito cells. The antiviral activity was produced in detectable levels at 3 days after infection, and its concentration in the extracellular medium increased thereafter. The antiviral activity was inactivated by treatment with the enzyme protease K and heat. It was not activated by treatment with antibody prepared against extracts of Sindbis virus-infected BHK-21 cells. The antiviral activity differs from interferon produced by vertebrate cells in that it is virus specific as well as cell specific.
mesh_terms: D000330:Aedes; D000818:Animals; D000998:Antiviral Agents; D001103:Arboviruses / Q000254:growth & development; D002460:Cell Line; D003470:Culture Media; D006863:Hydrogen-Ion Concentration; D010447:Peptide Hydrolases / Q000494:pharmacology; D012672:Semliki forest virus / Q000254:growth & development; D012845:Sindbis Virus / Q000254:growth & development*; D013696:Temperature
chemical_list: D000998:Antiviral Agents; D003470:Culture Media; D010447:Peptide Hydrolases