Inhibition of in vitro and in vivo HIV replication by a distamycin analogue that interferes with chemokine receptor function: a candidate for chemotherapeutic and microbicidal application.
J Med Chem
; 41(13): 2184-93, 1998 Jun 18.
Article
en En
| MEDLINE
| ID: mdl-9632350
ABSTRACT
Select chemokine receptors act as coreceptors for HIV-1 entry into human cells and represent targets for antiviral therapy. In this report we describe a distamycin analogue, 2,2'-[4, 4'-[[aminocarbonyl]amino]bis[N,4'-di[pryrrole-2-carboxamide- 1, 1'-dimethyl]]-6,8-naphthalenedisulfonic acid]hexasodium salt (NSC 651016), that selectively inhibited chemokine binding to CCR5, CCR3, CCR1, and CXCR4, but not to CXCR2 or CCR2b, and blocked chemokine-induced calcium flux. Inhibition was not due to nonspecific charge interactions at the cell surface, but was based on a specific competition for the ligand receptor interaction sites since the inhibitory effect was specific for some but not all chemoattractant receptors. NSC 651016 inhibited in vitro replication of a wide range of HIV-1 isolates, as well as HIV-2 and SIV, and exhibited in vivo anti-HIV-1 activity in a murine model. In contrast, a distamycin analogue with similar structure and charge and the monomeric form of NSC 651016 demonstrated no inhibitory effects. These data demonstrate that molecules which interfere with HIV-1 entry into cells by targeting specific chemokine coreceptors can provide a viable approach to anti-HIV-1 therapy. NSC 651016 represents an attractive candidate for the chemotherapeutic treatment of HIV-1 infection and as a microbicide to prevent the sexual transmisssion of HIV-1. Moreover, NSC 651016 can serve as a template for medicinal chemical modifications leading to more effective antivirals.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Replicación Viral
/
VIH-1
/
Fármacos Anti-VIH
/
Receptores de Quimiocina
/
Naftalenosulfonatos
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
J Med Chem
Asunto de la revista:
QUIMICA
Año:
1998
Tipo del documento:
Article
País de afiliación:
Estados Unidos