Definition: One of the type I interferons produced by fibroblasts in response to stimulation by live or inactivated virus or by double-stranded RNA. It is a cytokine with antiviral, antiproliferative, and immunomodulating activity.
interferon beta 1a [ Avonex,Biogen brand of Interferon beta 1a,Rebif,Serono brand of interferon beta 1a,interferon beta-1a ] an interferon beta-1 subtype that has methionine at position 1 and cysteine at 17 and is glycosylated at position 80
