Daclatasvir (BMS-790052)

Catalog No.S1482 Batch:S148203

Technical Data

Formula	C₄₀H₅₀N₈O₆
Molecular Weight	738.88	CAS No.	1009119-64-5
Solubility (25°C)*	In vitro	DMSO	148 mg/mL (200.3 mM)
		Ethanol	148 mg/mL (200.3 mM)
		Water	Insoluble
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description

Daclatasvir (BMS-790052, EBP883) is a highly selective inhibitor of HCV NS5A with EC50 of 9-50 pM, for a broad range of HCV replicon genotypes and the JFH-1 genotype 2a infectious virus in cell culture. Phase 3.

Targets

HCV NS5A ^[1]

9 pM-50 pM(EC50)

In vitro

BMS-790052 is one of the most potent inhibitors of HCV replication reported so far. The mean EC50 valuses of BMS-790052 are 50 and 9 pM for HCV genotype 1a and 1b replicons, respectively. BMS-790052 displays a therapeutic index (CC50/EC50) of at least 10⁵ and is inactive towards a panel of 10 RNA and DNA viruses, with EC50 higher than 10 μM. This confirms BMS-790052's specificity for HCV. ^[1] In Huh7 cells harboring the HCV genotype 1b replicons, BMS-790052 blocks both transient and stable HCV genome replication, with EC50 values raging from 1-15 pM. BMS-790052 (100 pM or 1 nM) has been shown to alter the subcellular localization and biochemical fractionation of NS5A. ^[2] BMS-790052 inhibits hybrid replicons containing HCV genotype-4 NS5A genes with EC50 of 7-13 pM. Residue 30 of NS5A is an important site for BMS-790052-mediated resistance in the hybrid replicons. ^[3]

Features

First-in-class, highly selective inhibitor of hepatitis C virus (HCV) NS5A with picomolar EC50 values.

Protocol (from reference)

Kinase Assay:^{^[4]}	FRET assay for HCV NS5A inhibitors The peptide (Ac-Asp-Glu-Asp [EDANS]-Glu-Glu-Abu-[COO] Ala-Ser-Lys [DABCYL]-NH2) contains a fluorescence donor {EDANS, 5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid} near one end of the peptide and an acceptor {DABCYL, 4-[(4-dimethylamino)phenyl]azo)benzoic acid} near the other end. Intermolecular resonance energy transfer between the donor and the acceptor quenches the fluorescence of the peptide, but as the NS3 protease cleaves the peptide, the products are released from resonance energy transfer quenching. The fluorescence of the donor increases over time as more substrate is cleaved by the NS3 protease. The assay reagent is: 5× luciferase cell culture lysis reagent diluted to 1× with dH₂O, NaCl (150 mM), the FRET peptide (20 μM). HCV-Huh-7 cells are placed in a 96-well plate, and allowed to attach overnight (1×10⁴ cells per well). The next day, BMS-790052 is added to the wells and the plate is incubated for 72 hours. The plate is then rinsed with PBS and used for the FRET assay by the addition of 30 μL of the FRET peptide assay reagent (described above) per well. Signals are obtained using the Cytofluor 4000 instrument, which has been set to 340 nm (excitation)/490 nm (emission) automatic mode, for 20 cycles or less, with the plate being read in the kinetic mode. Following FRET, 40 μL of luciferase substrate is added to each well and the luciferase is measured.
Cell Assay:^{^[1]}	Cell lines HCV replicon cells (Huh7) Concentrations 0.1 pM - 50 μM, dissolved in DMSO (the final concentration of DMSO is 0.5%) Incubation Time 72 hours Method BMS-790052 is added to 96-well plates containing HCV replicon cells seeded approximately 12 hours before in 200 µL media.The cell plates are tested for replication activity and cytotoxicity after 72 hours of incubation. Cytotoxicity is measured with CellTiter-Blue, after which the media and dye are removed, plates are inverted and the remaining liquid is blotted with paper towels. Replication activity of the HCV genotype 1a cell lines is quantified using Renilla luciferase. 1× Renilla luciferase lysis buffer (30 µL) is added to each well and plates are incubated with gentle shaking for 15 min. Renilla luciferase substrate (40 µL) is then added and the signals are detected using a Top Count luminometer set for light emission quantification. One hundred per cent activity is calculated for each cell line for the DMSO-only wells; percentage activity is calculated for each concentration of the inhibitor by dividing the average value for wells containing compound by the average value for wells containing DMSO.

Kinase Assay:^{^[4]}

FRET assay for HCV NS5A inhibitors
The peptide (Ac-Asp-Glu-Asp [EDANS]-Glu-Glu-Abu-[COO] Ala-Ser-Lys [DABCYL]-NH2) contains a fluorescence donor {EDANS, 5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid} near one end of the peptide and an acceptor {DABCYL, 4-[(4-dimethylamino)phenyl]azo)benzoic acid} near the other end. Intermolecular resonance energy transfer between the donor and the acceptor quenches the fluorescence of the peptide, but as the NS3 protease cleaves the peptide, the products are released from resonance energy transfer quenching. The fluorescence of the donor increases over time as more substrate is cleaved by the NS3 protease. The assay reagent is: 5× luciferase cell culture lysis reagent diluted to 1× with dH₂O, NaCl (150 mM), the FRET peptide (20 μM). HCV-Huh-7 cells are placed in a 96-well plate, and allowed to attach overnight (1×10⁴ cells per well). The next day, BMS-790052 is added to the wells and the plate is incubated for 72 hours. The plate is then rinsed with PBS and used for the FRET assay by the addition of 30 μL of the FRET peptide assay reagent (described above) per well. Signals are obtained using the Cytofluor 4000 instrument, which has been set to 340 nm (excitation)/490 nm (emission) automatic mode, for 20 cycles or less, with the plate being read in the kinetic mode. Following FRET, 40 μL of luciferase substrate is added to each well and the luciferase is measured.

Cell Assay:^{^[1]}

Cell lines
HCV replicon cells (Huh7)
Concentrations
0.1 pM - 50 μM, dissolved in DMSO (the final concentration of DMSO is 0.5%)
Incubation Time
72 hours
Method
BMS-790052 is added to 96-well plates containing HCV replicon cells seeded approximately 12 hours before in 200 µL media.The cell plates are tested for replication activity and cytotoxicity after 72 hours of incubation. Cytotoxicity is measured with CellTiter-Blue, after which the media and dye are removed, plates are inverted and the remaining liquid is blotted with paper towels. Replication activity of the HCV genotype 1a cell lines is quantified using Renilla luciferase. 1× Renilla luciferase lysis buffer (30 µL) is added to each well and plates are incubated with gentle shaking for 15 min. Renilla luciferase substrate (40 µL) is then added and the signals are detected using a Top Count luminometer set for light emission quantification. One hundred per cent activity is calculated for each cell line for the DMSO-only wells; percentage activity is calculated for each concentration of the inhibitor by dividing the average value for wells containing compound by the average value for wells containing DMSO.

References

[4] O'Boyle DR 2nd, et al. Antimicrob Agents Chemother, 2005, 49(4), 1346-1353.

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Customer Product Validation

: , 2011, Dr. Julie Sheldon,Dr Esteban Domingo and Dr Celia Perales

: , 2011, Dr. Anita Nag of Florida State University

: , 2011, Dr. Anita Nag of Florida State University

: Data from [Data independently produced by , , Antiviral Res, 2017, 139:18-24]

Selleck's Daclatasvir (BMS-790052) has been cited by 55 publications

Antiviral drugs prolong survival in murine recessive dystrophic epidermolysis bullosa [ EMBO Mol Med, 2024, 16(4):870-884]	PubMed: 38462666
Unraveling the dynamics of hepatitis C virus adaptive mutations and their impact on antiviral responses in primary human hepatocytes [ J Virol, 2024, e0192123.]	PubMed: 38319104
Mechanisms of Action of the Host-Targeting Agent Cyclosporin A and Direct-Acting Antiviral Agents against Hepatitis C Virus [ Viruses, 2023, 15(4)981]	PubMed: 37112961
Hepatitis C virus cell culture adaptive mutations enhance cell culture propagation by multiple mechanisms but boost antiviral responses in primary human hepatocytes [ bioRxiv, 2023, 2023.11.22.568224]	PubMed: 38045248
Combination of antiviral drugs inhibits SARS-CoV-2 polymerase and exonuclease and demonstrates COVID-19 therapeutic potential in viral cell culture [ Commun Biol, 2022, 5(1):154]	PubMed: 35194144
Going Viral: An Investigation into the Chameleonic Behaviour of Antiviral Compounds [ Chemistry, 2022, e202202798.]	PubMed: 36286339
Correlation of hepatitis C virus-mediated endoplasmic reticulum stress with autophagic flux impairment and hepatocarcinogenesis [ Med Mol Morphol, 2021, 10.1007/s00795-020-00271-5]	PubMed: 33386512
Combination of Antiviral Drugs to Inhibit SARS-CoV-2 Polymerase and Exonuclease as Potential COVID-19 Therapeutics [ bioRxiv, 2021, 2021.07.21.453274]	PubMed: 34312622
Fluoxazolevir inhibits hepatitis C virus infection in humanized chimeric mice by blocking viral membrane fusion [ Nat Microbiol, 2020, 10.1038/s41564-020-0781-2]	PubMed: 32868923
A bacterial artificial chromosome (BAC)-vectored noninfectious replicon of SARS-CoV-2 [ Antiviral Res, 2020, 185:104974]	PubMed: 33217430

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