Abstract:
:Successful HIV-1 infection requires a number of specific stages leading to integration of the provirus. We previously suggested that members of the VPAC neuroendocrine receptor family may play a role in HIV-1 infection. We now show that stimulation of the VPAC2 receptor with specific agonists provides strong resistance to HIV-1 infection. Daily stimulation of VPAC2, but not VPAC1 or PAC1, resulted in up to 90% inhibition of X4 or R5 productive infections in either cell lines or PBMCs. VPAC2 agonist stimulation had no effect on cell surface co-receptors, the rate of apoptotic cells, or HIV-1 entry or reverse transcription of viral RNA. However, we provide evidence that VPAC2-specific agonists inhibit HIV-1 infection through an inhibitory effect on the ability of the HIV-1 cDNA to integrate into the host DNA. These data reveal that VPAC2 agonists are appropriate candidates for further study as possible treatments aimed at the amelioration of HIV/AIDS.
journal_name
Virologyjournal_title
Virologyauthors
Bokaei PB,Ma XZ,Sakac D,Branch DRdoi
10.1016/j.virol.2006.12.012subject
Has Abstractpub_date
2007-05-25 00:00:00pages
38-49issue
1eissn
0042-6822issn
1096-0341pii
S0042-6822(06)00900-7journal_volume
362pub_type
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