Investigation into the mode of action of R-91650, an arylpiperazinyl fluoroquinolone, on feline immunodeficiency virus replication inhibitory activity

Investigation into the mode of action of R-91650, an arylpiperazinyl fluoroquinolone, on feline... The mode of action of R-91650, an arylpiperazinyl fluoroquinolone, on feline immunodeficiency virus (FIV) replication inhibitory activity was investigated. R-91650 inhibited replication of FIV at non-cytotoxic concentration levels in both acutely infected peripheral blood mononuclear cells and chronically infected P-CrFK cells. The compound reduced the intracellular p24 concentration levels in P-CrFK cells in a dose-dependent manner. Northern blot analysis revealed that R-91650 selectively prevented the accumulation of FIV mRNA in P-CrFK cells. However, the compound did not inhibit FIV-long terminal repeat (LTR) promoter activity in the reporter gene expression analysis. These data suggest that R-91650 is a novel inhibitor of FIV replication that inhibits a certain step or steps following transcription initiation of the FIV-LTR promoter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Investigation into the mode of action of R-91650, an arylpiperazinyl fluoroquinolone, on feline immunodeficiency virus replication inhibitory activity

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Publisher
Springer-Verlag
Copyright
Copyright © 2000 by Springer-Verlag/Wien
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050050679
Publisher site
See Article on Publisher Site

Abstract

The mode of action of R-91650, an arylpiperazinyl fluoroquinolone, on feline immunodeficiency virus (FIV) replication inhibitory activity was investigated. R-91650 inhibited replication of FIV at non-cytotoxic concentration levels in both acutely infected peripheral blood mononuclear cells and chronically infected P-CrFK cells. The compound reduced the intracellular p24 concentration levels in P-CrFK cells in a dose-dependent manner. Northern blot analysis revealed that R-91650 selectively prevented the accumulation of FIV mRNA in P-CrFK cells. However, the compound did not inhibit FIV-long terminal repeat (LTR) promoter activity in the reporter gene expression analysis. These data suggest that R-91650 is a novel inhibitor of FIV replication that inhibits a certain step or steps following transcription initiation of the FIV-LTR promoter.

Journal

Archives of VirologySpringer Journals

Published: May 1, 2000

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