research use only

Dolutegravir (GSK1349572) HIV Integrase inhibitor

Cat.No.S2667

Dolutegravir (GSK1349572) is a two-metal-binding HIV integrase inhibitor with IC50 of 2.7 nM in a cell-free assay, and it shows modest activity against raltegravir-resistant signature mutants Y143R, Q148K, N155H, and G140S/Q148H.
Dolutegravir (GSK1349572) Integrase inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 419.38

Quality Control

Cell Culture, Treatment & Working Concentration

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
MDCK2 cells Function assay Inhibition of human OCT2 expressed in MDCK2 cells using [14C]metformin as substrate by liquid scintillation counting analysis 23132334
HOS Antiviral assay 3 hrs Antiviral activity against HIV-1 harboring wild type integrase infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.0016 μM. 24901667
HEK293T Antiviral assay 2 days Antiviral activity against pseudo Human immunodeficiency virus infected in HEK293T cells after 2 days, IC50 = 0.0017 μM. 23845180
MT4 Antiviral assay 4 to 5 days Antiviral activity against Human immunodeficiency virus 1 3B infected in human MT4 cells after 4 to 5 days by bioluminescence assay, IC50 = 0.002 μM. 23845180
HOS Antiviral assay 3 hrs Antiviral activity against raltegravir-resistant HIV-1 harboring integrase N155H mutant infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.0036 μM. 24901667
HOS Antiviral assay 3 hrs Antiviral activity against raltegravir-resistant HIV-1 harboring integrase Y143R mutant infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.0043 μM. 24901667
HOS Antiviral assay 3 hrs Antiviral activity against raltegravir-resistant HIV-1 harboring integrase G140S/Q148H double mutant infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.0058 μM. 24901667
HOS Antiviral assay 3 hrs Antiviral activity against INSTI-resistant HIV-1 harboring integrase R263K mutant infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.011 μM. 24901667
HOS Antiviral assay 3 hrs Antiviral activity against INSTI-resistant HIV-1 harboring integrase G118R mutant infected in human HOS cells pretreated with compound for 3 hrs by single-round HIV-1 infectivity assay, EC50 = 0.013 μM. 24901667
P4R5 MAGI Antiviral assay 24 hrs Antiviral activity against HIV1 infected in CD4/CXCR4/CCR5 expressing human P4R5 MAGI cells preincubated with cells for 24 hrs followed by viral infection measured after 48 hrs by beta-galactosidase reporter gene assay, EC50 = 0.02 μM. 30031976
P4R5 Antiviral assay 24 hrs Antiviral activity against HIV1 infected in CD4/CXCR4/CCR5 expressing human P4R5 cells assessed as inhibition of viral replication preincubated with cells for 24 hrs followed by viral infection measured after 48 hrs by beta-galactosidase reporter gene ass, EC50 = 0.02 μM. 28525279
HEK293T Antiviral assay 2 days Antiviral activity against pseudo Human immunodeficiency virus infected in HEK293T cells after 2 days in presence of human serum albumin, IC50 = 0.022 μM. 23845180
MDCK2 Function assay Inhibition of human OCT2 expressed in MDCK2 cells using [14C]metformin as substrate by liquid scintillation counting analysis, IC50 = 1.9 μM. 23132334
Vero E6 Antiviral assay 2 days Antiviral efficacy against SARS-CoV-2 (strain BavPat1) in Vero E6 cells assessed by inhibition of viral RNA replication measured by RT-PCR after 2 days, EC50 = 22.04 μM. ChEMBL
Vero E6 Antiviral assay 2 days Antiviral efficacy against SARS-CoV-2 (strain BavPat1) in Vero E6 cells assessed by inhibition of viral RNA replication measured by RT-PCR after 2 days, EC90 = 42.81 μM. ChEMBL
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight 419.38 Formula

C20H19F2N3O5

Storage (From the date of receipt)
CAS No. 1051375-16-6 Download SDF Storage of Stock Solutions

Synonyms GSK1349572,S/GSK1349572 Smiles CC1CCOC2N1C(=O)C3=C(C(=O)C(=CN3C2)C(=O)NCC4=C(C=C(C=C4)F)F)O

Solubility

In vitro
Batch:

DMSO : 83 mg/mL (197.91 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg
g
μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO
%
% Tween 80
% ddH2O
% DMSO
+
%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

Features
A next-generation and two-metal-binding HIV integrase strand transfer inhibitor.
Targets/IC50/Ki
HIV integrase [2]
(Cell-free assay)
2.7 nM
In vitro

Dolutegravir (GSK1349572) shows a potent inhibitory effect on nine clinical isolates from integrase inhibitor-naive HIV-2-infected patients with EC50 ranging from 0.2 nM to 1.4 nM.[1]

In vitro, it inhibits recombinant HIV-1 integrase-catalyzed strand transfer with an IC50 of 2.7 nM. Furthermore, this compound potently inhibits HIV replication in cells such as peripheral blood mononuclear cells (PBMCs), MT-4 cells, and CIP4 cells infected with a self-inactivating PHIV lentiviral vector, with EC50 values of 0.51 nM, 0.71 nM, and 2.2 nM, respectively.[2]

In vitro, it also exhibits potent activity against five different nonnucleoside reverse transcription inhibitor-resistant or nucleoside reverse transcription inhibitor-resistant viruses, with EC50 ranging from 1.3 nM to 2.1 nM. Similarly to its activity against wild-type virus, it shows equivalent efficacy against two protease inhibitor-resistant viruses, with EC50 values of 0.36 nM and 0.37 nM, respectively.[2]

Kinase Assay
In vitro strand transfer assay
The inhibitory potencies of Dolutegravir (GSK1349572) and other INIs are measured in a strand transfer assay using recombinant HIV integrase. A complex of integrase and biotinylated preprocessed donor DNA-streptavidin-coated scintillation proximity assay (SPA) beads is formed by incubating 2 μM purified recombinant integrase with 0.66 μM biotinylated donor DNA-4 mg/mL streptavidin-coated SPA beads in 25 mM sodium morpholinepropanesulfonic acid (MOPS) (pH 7.2), 23 mM NaCl, and 10 mM MgCl2 for 5 minutes at 37 °C. These beads are spun down and preincubated with diluted INIs for 60 minutes at 37 °C. Then a 3H-labeled target DNA substrate is added to give a final concentration of 7 nM substrate, and the strand transfer reaction mixture is incubated at 37 °C for 25 to 45 minutes, which allows for a linear increase in the strand transfer of donor DNA to radiolabeled target DNA. The signal is read using a Wallac MicroBeta scintillation plate reader.
In vivo

Dolutegravir (GSK1349572), a first-line antiretroviral drug (ARV) used in combination therapy for HIV-1, inhibits MMP activity and has the potential to affect prenatal and postnatal neurodevelopment.

References

Applications

Methods Biomarkers Images PMID
Dose-response infectivity curves NL4.3IN(WT) / NL4.3IN(S230R) virus S2667-other-1 29617824

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06281834 Not yet recruiting
Pediatric HIV Infection|Latent Tuberculosis
Brigham and Women''s Hospital|APIN Public Health Initiatives|University of Cape Town
May 2024 Phase 1
NCT05122026 Recruiting
HIV Seropositivity|Pregnancy|Tuberculosis Infection
The Aurum Institute NPC|Johns Hopkins University|Weill Medical College of Cornell University|University of Washington
January 17 2024 Phase 1|Phase 2
NCT05069688 Recruiting
Pediatric HIV Infection|Tuberculosis Infection
Brigham and Women''s Hospital|APIN Public Health Initiatives|University of Cape Town
July 7 2023 Phase 1
NCT05122767 Recruiting
Tuberculosis|HIV
The Aurum Institute NPC|Johns Hopkins University
May 24 2023 Phase 1|Phase 2

Tech Support

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

Signaling Pathway Map