作者:Ramamurthy Charubala、Wolfgang Pfleiderer、Robert J. Suhadolnik、Kathryn T. Iacono、Nicholas F. Muto、Joseph W. Homan、Camille Martinand-Mari、Susan E. Horvath、Earl E. Henderson、Amber Steele、Thomas J. Rogers
DOI:10.1002/1522-2675(200208)85:8<2284::aid-hlca2284>3.0.co;2-e
日期:2002.8
The chemical syntheses of nuclease-resistant, nontoxic bioactive (2'-5')agonists, 3'-deoxyadenylyl-(2'-->5')3'-deoxyadenylyl-(2'-->5')-3'-deoxyadenylyl-(2'-->2")-9-[(2"-hydroxyethoxy)methyl]adenine (d(3)A-d(3)A-d(3)A-etherA; 36), 1-benzyl-3'-deoxyadenylyl-(2'-->5')-3'-deoxyadenylyl-(2'-->5')-3'-deoxyadenylyl-(2'-->2")-9-[2"-hydroxyethoxy)methyl]adenine (N-1-benzyl-d(3)A-d(3)A-d(3)A-etherA; 37), N-6-benzyl-3'-deoxyadenylyl-(2'-5')3'-deoxyadenylyl-(2'-->5')-3'-deoxyadenylyl-(2'-->2")-9-[(2"-hydroxyethoxy)methyl]adenine (N-6-benzyl-d(3)Ad(3)A-d(3)A-etherA; 38), N-6-benzyladenylyl-(2'-->5')-adenylyl-(2'-->5')-adenylyl-(2'-->2")-9-[(2"-hydroxyethoxy)methyl]adenine (N-6-benzyl-A-A-A-etherA; 39), as well as the biological activities of 37, 38, and already synthesized and published adenylyl-(2'-->5')-adenylyl-(2'-->5')-adenylyl-(2'-->2")-9-[(2"-hydroxyethoxy)methyl]adenine (A-A-A-etherA; 40), are described. The above (2'-5')A derivatives 37-40 inhibit HIV-1 replication as measured by inhibition of syncytia formation, HIV-1 reverse transcriptase activity, or HIV-1 p24-antigen expression, with no evidence of cytotoxicity. Oligonucleotides 37, 38, and 40 were taken up intact into T cells in culture of cytoplasmic concentrations sufficient to activate the latent endoribonuclease, RNase L. N-6-Benzyl-d(3)A-d(3)A-d(3)A-etherA (38) also exerts immunostimulatory effects by increasing expression of monocyte chemotactic protein-1 (MCP-1), and, thereby, competing with HIV-1 for binding to a critical HIV-coreceptor.