Abstract：
:Although highly active anti-retroviral therapy (HAART) is successful in the treatment of HIV infection, problems with toxicity, drug-resistant variants, and therapeutic failures have compromised the long-term utility of existing combination regimens. Mismatched double-stranded RNA (polyI-polyC(12)U) is an immune modulator with inherent anti-HIV activity. Cell toxicities and anti-HIV activities of fourteen anti-HIV agents were determined alone and in combination with polyI-polyC(12)U. Combination analyses for anti-HIV activity were performed at three drug ratios. Using Mixed Dose Effect analyses and the CalcuSyn for Windows software package, combination indeces were determined for all drug combinations. In general, polyI-polyC(12)U was synergistic in combination with abacavir, zidovudine, zalcitabine, didanosine, stavudine, efavirenz, indinavir, ritonavir, nelfinavir, and amprenavir. It was synergistic to antagonistic with lamivudine, delavirdine, nevirapine, and saquinavir. Thus, polyI-polyC(12)U is synergistic with most anti-HIV agents at most drug ratios and across most effective concentrations in vitro, although, certain members of each class were exceptions. PolyI-polyC(12)U alone was equally active against wild-type HIV and HIV resistant to nevirapine, protease inhibitors, or nucleoside analogue reverse transcriptase inhibitors. These results suggest that polyI-polyC(12)U should be re-evaluated as a potential adjunct therapy in patients who have failed current anti-retroviral therapeutic regimens.
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
Essey RJ,McDougall BR,Robinson WE Jrdoi
10.1016/s0166-3542(01)00150-4subject
Has Abstractpub_date
2001-09-01 00:00:00pages
189-202issue
3eissn
0166-3542issn
1872-9096pii
S0166354201001504journal_volume
51pub_type
杂志文章abstract：:The successful development of antiviral drugs is highly dependent on a close interaction and collaboration between the chemist and the biologist (biomedic). This is illustrated by a number of representative examples: S-adenosylhomocysteine (SAH) hydrolase inhibitors which display broad-spectrum antiviral activity, bro...
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