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Zhao L, He HH, Ou-Yang T, Liu DF, Jiang CH, Yang HP, Wang P, Xie N, Yan SS. Pre-clinical pharmacological profile of QF-036, a potent HIV-1 maturation inhibitor. Basic Clin Pharmacol Toxicol 2021; 128:275-285. [PMID: 33012100 DOI: 10.1111/bcpt.13504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 11/28/2022]
Abstract
QF-036 is an HIV-1 maturation inhibitor in pre-clinical development, and its antiviral activity against a laboratory HIV-1 strain and two drug-resistant strains was determined in the C8166 line. QF-036 was also subjected to absorption, distribution and metabolism (ADM) assessment in vitro, and pharmacokinetic profiles were evaluated in rats and monkeys. The 50% effective concentrations (EC50 ) of QF-036 against the three strains were 20.36 nM, 0.39 μM and 2.11 nM, respectively, demonstrating better antiviral potential than the first-generation antiviral maturation inhibitor bevirimat. QF-036 demonstrated moderate cell permeability, high plasma protein binding ability and good metabolic stability in vitro. After oral QF-036 administration to rats and monkeys, both species exhibited moderate bioavailability, and the plasma drug exposure increased in an approximately dose-proportional manner. When administered orally (30 mg/kg) to monkeys, the QF-036 plasma concentration (Cmax ) peaked at 3671 ng/mL (4.82 μM), 12 to 2410 times higher than the EC50 of laboratory or resistant HIV-1 strains. Moreover, the plasma concentration of QF-036 at 12 hours after administration was 263 ng/mL (0.35 μM), which approximately matched the highest EC50 value of the three test strains. The favourable viral inhibitory activity and pharmacokinetic properties provide critical support for QF-036 as a promising anti-HIV therapeutic candidate.
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Affiliation(s)
- Li Zhao
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
- Shanghai Qingrun Pharmaceutical Technology Co., Ltd, Shanghai, China
| | - Hong-Hong He
- Shanghai Qingrun Pharmaceutical Technology Co., Ltd, Shanghai, China
| | - Ting Ou-Yang
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
| | - Di-Fa Liu
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
| | - Chun-Hong Jiang
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
| | - He-Ping Yang
- Shanghai De Novo Pharmatech Co., Ltd, Shanghai, China
| | - Pei Wang
- Shanghai De Novo Pharmatech Co., Ltd, Shanghai, China
| | - Ning Xie
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
| | - Shou-Sheng Yan
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi Qingfeng Pharmaceutical Co., Ltd, Ganzhou, China
- Shanghai Qingrun Pharmaceutical Technology Co., Ltd, Shanghai, China
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da Silva S, Oliveira Silva Martins D, Jardim ACG. A Review of the Ongoing Research on Zika Virus Treatment. Viruses 2018; 10:E255. [PMID: 29758005 PMCID: PMC5977248 DOI: 10.3390/v10050255] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/11/2018] [Accepted: 04/14/2018] [Indexed: 12/17/2022] Open
Abstract
The Zika fever is an arboviral disease resulting from the infection with Zika virus (ZIKV). The virus is transmitted to humans by the bite of Aedes mosquitos, mainly Aedes aegypti and Aedes albopictus. ZIKV has been detected for decades in African and Asian regions and, since 2007, has spread to other continents; among them, infections are most reported in the Americas. This can be explained by the presence of vectors in highly populated and tropical regions where people are susceptible to contamination. ZIKV has been considered by the World Health Organization a serious public health problem because of the increasing number of cases of congenital malformation and neurological disorders related to its infection, such as microcephaly, Guillain⁻Barré syndrome, meningoencephalitis, and myelitis. There is no vaccine or specific antiviral against ZIKV. The infection is best prevented by avoiding mosquito bite, and the treatment of infected patients is palliative. In this context, the search for efficient antivirals is necessary but remains challenging. Here, we aim to review the molecules that have been described to interfere with ZIKV life cycle and discuss their potential use in ZIKV therapy.
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Affiliation(s)
- Suely da Silva
- Laboratory of Virology, Institute of Biomedical Science, ICBIM, Federal University of Uberlândia, Uberlândia, MG 38405-302, Brazil.
- Genomics Study Laboratory, São Paulo State University, IBILCE, São José do Rio Preto, SP 15054-000, Brazil.
| | - Daniel Oliveira Silva Martins
- Laboratory of Virology, Institute of Biomedical Science, ICBIM, Federal University of Uberlândia, Uberlândia, MG 38405-302, Brazil.
- Genomics Study Laboratory, São Paulo State University, IBILCE, São José do Rio Preto, SP 15054-000, Brazil.
| | - Ana Carolina Gomes Jardim
- Laboratory of Virology, Institute of Biomedical Science, ICBIM, Federal University of Uberlândia, Uberlândia, MG 38405-302, Brazil.
- Genomics Study Laboratory, São Paulo State University, IBILCE, São José do Rio Preto, SP 15054-000, Brazil.
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Mnasri S, Frini-Srasra N. Synthesis, characterization and catalytic evaluation of zirconia-pillared bentonite for 1,3-dioxalane synthesis. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2013. [DOI: 10.3103/s106837551304011x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nucleoside and nucleotide HIV reverse transcriptase inhibitors: 25 years after zidovudine. Antiviral Res 2009; 85:39-58. [PMID: 19887088 DOI: 10.1016/j.antiviral.2009.09.014] [Citation(s) in RCA: 261] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 09/19/2009] [Accepted: 09/23/2009] [Indexed: 12/29/2022]
Abstract
Twenty-five years ago, nucleoside analog 3'-azidothymidine (AZT) was shown to efficiently block the replication of HIV in cell culture. Subsequent studies demonstrated that AZT acts via the selective inhibition of HIV reverse transcriptase (RT) by its triphosphate metabolite. These discoveries have established the first class of antiretroviral agents: nucleoside and nucleotide reverse transcriptase inhibitors (NRTIs). Over the years that followed, NRTIs evolved into the main component of antiretroviral drug combinations that are now used for the treatment of all populations of HIV infected patients. A total of thirteen NRTI drug products are now available for clinical application: eight individual NRTIs, four fixed-dose combinations of two or three NRTIs, and one complete fixed-dose regimen containing two NRTIs and one non-nucleoside RT inhibitor. Multiple NRTIs or their prodrugs are in various stages of clinical development and new potent NRTIs are still being identified through drug discovery efforts. This article will review basic principles of the in vitro and in vivo pharmacology of NRTIs, discuss their clinical use including limitations associated with long-term NRTI therapy, and describe newly identified NRTIs with promising pharmacological profiles highlighting those in the development pipeline. This article forms part of a special issue of Antiviral Research marking the 25th anniversary of antiretroviral drug discovery and development, volume 85, issue 1, 2010.
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Abstract
Nucleoside or nucleotide analogue inhibitors of viral replication almost act as chain terminators during DNA (DNA- and retroviruses) or RNA (RNA viruses) synthesis. Following intracellular phosphorylation, by viral and/or cellular kinases, the 5'-triphosphate metabolites (or 2'-diphosphate metabolites in the case of acyclic nucleoside phosphonate analogues) compete with the natural substrate in the DNA or RNA polymerization reaction. Obligatory chain terminators (e.g., acyclovir) do not offer the 3'-hydroxyl function at the riboside moiety of the molecule. Nucleoside analogues that possess a hydroxyl function at a position equivalent of the 3'-hydroxyl position may act as chain terminators if this hydroxyl group is conformationally constrained (e.g., ganciclovir) or sterically hindered to enter into a phosphodiester linkage with the incoming nucleotide. In case that the 3'-hydroxylgroup is correctly positioned, chain elongation may be hampered through steric hindrance from neighboring substituents (e.g., 2'-C-methyl or 4'-azido nucleoside inhibitors of HCV replication). Here, we review the molecular mechanism of action and the clinical applications of the nucleosides and nucleotides acting as chain terminators. A further discussion of clinical applications in combination therapy can be found in Chap. 12.
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Affiliation(s)
- E De Clercq
- Rega Institute for Medical Research, K.U.Leuven, Minderbroedersstraat 10, Leuven, B-3000, Belgium.
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Liang Y, Sharon A, Grier JP, Rapp KL, Schinazi RF, Chu CK. 5'-O-Aliphatic and amino acid ester prodrugs of (-)-beta-D-(2R,4R)-dioxolane-thymine (DOT): synthesis, anti-HIV activity, cytotoxicity and stability studies. Bioorg Med Chem 2008; 17:1404-9. [PMID: 19153047 DOI: 10.1016/j.bmc.2008.10.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 10/29/2008] [Accepted: 10/31/2008] [Indexed: 11/25/2022]
Abstract
A series of (-)-beta-D-(2R,4R)-dioxolane-thymine-5'-O-aliphatic acid esters as well as amino acid esters were synthesized as prodrugs of (-)-beta-D-(2R,4R)-dioxolane-thymine (DOT). The compounds were evaluated for anti-HIV activity against HIV-1(LAI) in human peripheral blood mononuclear (PBM) cells as well as for their cytotoxicity in PBM, CEM and Vero cells. Improved anti-HIV potency in vitro was observed for the compound 2-4 (5'-O-aliphatic acid esters) without increase in cytotoxicity in comparison to the parent drug. Chemical and enzymatic hydrolysis of the prodrugs was also studied, in which the prodrugs exhibited good chemical stability with the half-lives from 3 h to 54 h at pH 2.0 and 7.4 phosphate buffer. However, the prodrugs were relatively labile to porcine esterase with the half-lives from 12.3 to 48.0 min.
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Affiliation(s)
- Yuzeng Liang
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, Athens, GA 30602, USA
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