NDLI: A Novel Bis-Tetrahydrofuranylurethane-Containing Nonpeptidic Protease Inhibitor (PI), GRL-98065, Is Potent against Multiple-PI-Resistant Human Immunodeficiency Virus In Vitro▿

Content Provider	PubMed Central
Author	Amano, Masayuki Koh, Yasuhiro Das, Debananda Li, Jianfeng Leschenko, Sofiya Wang, Yuan-fang Boross, Peter I. Weber, Irene T. Ghosh, Arun K. Mitsuya, Hiroaki
Copyright Year	2007
Abstract	We designed, synthesized, and identified GRL-98065, a novel nonpeptidic human immunodeficiency virus type 1 (HIV-1) protease inhibitor (PI) containing the structure-based designed privileged cyclic ether-derived nonpeptide P2 ligand, 3(R),3a(S),6a(R)-bis-tetrahydrofuranylurethane (bis-THF), and a sulfonamide isostere, which is highly potent against laboratory HIV-1 strains and primary clinical isolates (50% effective concentration [EC50], 0.0002 to 0.0005 μM) with minimal cytotoxicity (50% cytotoxicity, 35.7 μM in CD4+ MT-2 cells). GRL-98065 blocked the infectivity and replication of each of the HIV-1NL4-3 variants exposed to and selected by up to a 5 μM concentration of saquinavir, indinavir, nelfinavir, or ritonavir and a 1 μM concentration of lopinavir or atazanavir (EC50, 0.0015 to 0.0075 μM), although it was less active against HIV-1NL4-3 selected by amprenavir (EC50, 0.032 μM). GRL-98065 was also potent against multiple-PI-resistant clinical HIV-1 variants isolated from patients who had no response to existing antiviral regimens after having received a variety of antiviral agents, HIV-1 isolates of various subtypes, and HIV-2 isolates examined. Structural analyses revealed that the close contact of GRL-98065 with the main chain of the protease active-site amino acids (Asp29 and Asp30) is important for its potency and wide-spectrum activity against multiple-PI-resistant HIV-1 variants. The present data demonstrate that the privileged nonpeptide P2 ligand, bis-THF, is critical for the binding of GRL-98065 to the HIV protease substrate binding site and that this scaffold can confer highly potent antiviral activity against a wide spectrum of HIV isolates.
Related Links	http://dx.doi.org/10.1128/aac.01413-06
Ending Page	2155
Page Count	13
Starting Page	2143
File Format	PDF
ISSN	00664804
e-ISSN	10986596
Journal	Antimicrobial Agents and Chemotherapy
Issue Number	6
Volume Number	51
Language	English
Publisher	American Society for Microbiology
Publisher Date	2007-06-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Pharmacology (medical) Pharmacology Infectious Diseases Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Pharmacology Pharmacology (medical)

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