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All Outputs (10)

ThermoBRET: A Ligand-Engagement Nanoscale Thermostability Assay Applied to GPCRs** (2023)
Journal Article
Hoare, B. L., Tippett, D. N., Kaur, A., Cullum, S. A., Miljuš, T., Koers, E. J., Harwood, C. R., Dijon, N., Holliday, N. D., Sykes, D. A., & Veprintsev, D. B. (2024). ThermoBRET: A Ligand-Engagement Nanoscale Thermostability Assay Applied to GPCRs**. ChemBioChem, 25(2), Article e202300459. https://doi.org/10.1002/cbic.202300459

Measurements of membrane protein thermostability reflect ligand binding. Current thermostability assays often require protein purification or rely on pre-existing radiolabelled or fluorescent ligands, limiting their application to established targets... Read More about ThermoBRET: A Ligand-Engagement Nanoscale Thermostability Assay Applied to GPCRs**.

Combined docking and machine learning identify key molecular determinants of ligand pharmacological activity on β2 adrenoceptor (2022)
Journal Article
Jiménez-Rosés, M., Morgan, B. A., Jimenez Sigstad, M., Tran, T. D. Z., Srivastava, R., Bunsuz, A., Borrega‐Román, L., Hompluem, P., Cullum, S. A., Harwood, C. R., Koers, E. J., Sykes, D. A., Styles, I. B., & Veprintsev, D. B. (2022). Combined docking and machine learning identify key molecular determinants of ligand pharmacological activity on β2 adrenoceptor. Pharmacology Research and Perspectives, 10(5), Article e00994. https://doi.org/10.1002/prp2.994

G protein-coupled receptors (GPCRs) are valuable therapeutic targets for many diseases. A central question of GPCR drug discovery is to understand what determines the agonism or antagonism of ligands that bind them. Ligands exert their action via the... Read More about Combined docking and machine learning identify key molecular determinants of ligand pharmacological activity on β2 adrenoceptor.

Structure-Kinetic Profiling of Haloperidol Analogues at the Human Dopamine D2 Receptor (2019)
Journal Article
Fyfe, T. J., Kellam, B., Sykes, D. A., Capuano, B., Scammells, P. J., Lane, J. R., Charlton, S. J., & Mistry, S. N. (2019). Structure-Kinetic Profiling of Haloperidol Analogues at the Human Dopamine D2 Receptor. Journal of Medicinal Chemistry, 62(21), 9488-9520. https://doi.org/10.1021/acs.jmedchem.9b00864

Haloperidol is a typical antipsychotic drug (APD) associated with an increased risk of extrapyramidal side-effects (EPS) and hyperprolactinemia relative to atypical APDs such as clozapine. Both drugs are dopamine D2 receptor (D2R) antagonists, with c... Read More about Structure-Kinetic Profiling of Haloperidol Analogues at the Human Dopamine D2 Receptor.

Investigating the Influence of Tracer Kinetics on Competition-Kinetic Association Binding Assays: Identifying the Optimal Conditions for Assessing the Kinetics of Low-Affinity Compounds (2019)
Journal Article
Sykes, D. A., Jain, P., & Charlton, S. J. (2019). Investigating the Influence of Tracer Kinetics on Competition-Kinetic Association Binding Assays: Identifying the Optimal Conditions for Assessing the Kinetics of Low-Affinity Compounds. Molecular Pharmacology, 96(3), 378-392. https://doi.org/10.1124/mol.119.116764

An increased appreciation of the importance of optimizing drug-binding kinetics has lead to the development of various techniques for measuring the kinetics of unlabeled compounds. One approach is the competition-association kinetic binding method fi... Read More about Investigating the Influence of Tracer Kinetics on Competition-Kinetic Association Binding Assays: Identifying the Optimal Conditions for Assessing the Kinetics of Low-Affinity Compounds.

Binding kinetics of ligands acting at GPCRs (2019)
Journal Article
Sykes, D. A., Stoddart, L. A., Kilpatrick, L. E., & Hill, S. J. (2019). Binding kinetics of ligands acting at GPCRs. Molecular and Cellular Endocrinology, 485, 9-19. https://doi.org/10.1016/j.mce.2019.01.018

The influence of drug-receptor binding kinetics has often been overlooked during the development of new therapeutics that target G protein-coupled receptors (GPCRs). Over the last decade there has been a growing understanding that an in-depth knowled... Read More about Binding kinetics of ligands acting at GPCRs.

Extrapyramidal side effects of antipsychotics are linked to their association kinetics at dopamine D2 receptors (2017)
Journal Article
Sykes, D. A., Moore, H., Stott, L., Holliday, N., Javitch, J. A., Lane, J. R., & Charlton, S. J. (2017). Extrapyramidal side effects of antipsychotics are linked to their association kinetics at dopamine D2 receptors. Nature Communications, 8(1), Article 763. https://doi.org/10.1038/s41467-017-00716-z

Atypical antipsychotic drugs (APDs) have been hypothesized to show reduced extrapyramidal side effects (EPS) due to their rapid dissociation from the dopamine D2 receptor. However, support for this hypothesis is limited to a relatively small number o... Read More about Extrapyramidal side effects of antipsychotics are linked to their association kinetics at dopamine D2 receptors.

Discovery of fevipiprant (NVP-QAW039), a potent and selective DP2 receptor antagonist for treatment of asthma (2017)
Journal Article
Sandham, D. A., Barker, L., Brown, L., Brown, Z., Budd, D., Charlton, S. J., Chatterjee, D., Cox, B., Dubois, G., Duggan, N., Hall, E., Hatto, J., Maas, J., Manini, J., Profit, R., Riddy, D., Ritchie, C., Sohal, B., Shaw, D., Stringer, R., …Willis, J. (2017). Discovery of fevipiprant (NVP-QAW039), a potent and selective DP2 receptor antagonist for treatment of asthma. ACS Medicinal Chemistry Letters, 8(5), 582-586. https://doi.org/10.1021/acsmedchemlett.7b00157

Further optimization of an initial DP2 receptor antagonist clinical candidate NVPQAV680 led to the discovery of a follow-up molecule 2-(2-methyl-1-(4-(methylsulfonyl)-2- (trifluoromethyl)benzyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)acetic acid (compound 11,... Read More about Discovery of fevipiprant (NVP-QAW039), a potent and selective DP2 receptor antagonist for treatment of asthma.

Uncoupling the Structure–Activity Relationships of β2 Adrenergic Receptor Ligands from Membrane Binding (2016)
Journal Article
Dickson, C. J., Hornak, V., Velez-Vega, C., McKay, D. J., Reilly, J., Sandham, D. A., Shaw, D., Fairhurst, R. A., Charlton, S. J., Sykes, D. A., Pearlstein, R., & Duca, J. S. (2016). Uncoupling the Structure–Activity Relationships of β2 Adrenergic Receptor Ligands from Membrane Binding. Journal of Medicinal Chemistry, 59(12), 5780-5789. https://doi.org/10.1021/acs.jmedchem.6b00358

Ligand binding to membrane proteins may be significantly influenced by the interaction of ligands with the membrane. In particular, the microscopic ligand concentration within the membrane surface solvation layer may exceed that in bulk solvent, resu... Read More about Uncoupling the Structure–Activity Relationships of β2 Adrenergic Receptor Ligands from Membrane Binding.

The role of kinetic context in apparent biased agonism at GPCRs (2016)
Journal Article
Javitch, J. A., Klein Herenbrink, C., Sykes, D. A., Donthamsetti, P., Canals, M., Coudrat, T., Shonberg, J., Scammells, P. J., Capuano, B., Sexton, P. M., Charlton, S. J., Javitch, J., Christopoulos, A., & Lane, J. R. (2016). The role of kinetic context in apparent biased agonism at GPCRs. Nature Communications, 7, Article 10842. https://doi.org/10.1038/ncomms10842

Biased agonism describes the ability of ligands to stabilize different conformations of a GPCR linked to distinct functional outcomes and offers the prospect of designing pathway-specific drugs that avoid on-target side effects. This mechanism is usu... Read More about The role of kinetic context in apparent biased agonism at GPCRs.