when various synthetic double- or single-stranded dnas were incubated with spleen cells from mice ( balb/c or cdf1 ) at 37 degrees for 20 hr , it was found that some of the dnas augmented nk activity and produced factors in the culture supernatants which showed antiviral activity and activity to render mouse macrophages cytotoxic toward tumor cells .
C0012935
single-stranded dnas
C0012854
dnas