All Outputs (45)

Ligand-Directed Labeling of the Adenosine A1 Receptor in Living Cells (2024)
Journal Article
Comeo, E., Goulding, J., Lin, C.-Y., Groenen, M., Woolard, J., Kindon, N. D., Harwood, C. R., Platt, S., Briddon, S. J., Kilpatrick, L. E., Scammells, P. J., Hill, S. J., & Kellam, B. (2024). Ligand-Directed Labeling of the Adenosine A1 Receptor in Living Cells. Journal of Medicinal Chemistry, 67(14), 12099–12117. https://doi.org/10.1021/acs.jmedchem.4c00835

The study of protein function and dynamics in their native cellular environment is essential for progressing fundamental science. To overcome the requirement of genetic modification of the protein or the limitations of dissociable fluorescent ligands... Read More about Ligand-Directed Labeling of the Adenosine A1 Receptor in Living Cells.

A novel and selective fluorescent ligand for the study of adenosine A2B receptors (2024)
Journal Article
Patera, F., Mistry, S. J., Kindon, N. D., Comeo, E., Gouding, J., Kellam, B., Kilpatrick, L. E., Franks, H., & Hill, S. J. (2024). A novel and selective fluorescent ligand for the study of adenosine A2B receptors. Pharmacology Research and Perspectives, 12(4), Article e1223. https://doi.org/10.1002/prp2.1223

Fluorescent ligands have proved to be powerful tools in the study of G protein-coupled receptors in living cells. Here we have characterised a new fluorescent ligand PSB603-BY630 that has high selectivity for the human adenosine A2B receptor (A2BR).... Read More about A novel and selective fluorescent ligand for the study of adenosine A2B receptors.

Design, Synthesis, and Evaluation of a New Chemotype Fluorescent Ligand for the P2Y2 Receptor (2024)
Journal Article
Knight, R., Kilpatrick, L. E., Hill, S. J., & Stocks, M. J. (2024). Design, Synthesis, and Evaluation of a New Chemotype Fluorescent Ligand for the P2Y2 Receptor. ACS Medicinal Chemistry Letters, 15(7), 1127-1135. https://doi.org/10.1021/acsmedchemlett.4c00211

The P2Y2 receptor (P2Y2R) is a target for diseases including cancer, idiopathic pulmonary fibrosis, and atherosclerosis. However, there are insufficient P2Y2R antagonists available for validating P2Y2R function and future drug development. Evaluation... Read More about Design, Synthesis, and Evaluation of a New Chemotype Fluorescent Ligand for the P2Y2 Receptor.

Mechano-sensitivity of β2-adrenoceptors enhances constitutive activation of cAMP generation that is inhibited by inverse agonists (2024)
Journal Article
Cullum, S. A., Platt, S., Dale, N., Isaac, O. C., Wragg, E. S., Soave, M., Veprintsev, D. B., Woolard, J., Kilpatrick, L. E., & Hill, S. J. (2024). Mechano-sensitivity of β2-adrenoceptors enhances constitutive activation of cAMP generation that is inhibited by inverse agonists. Communications Biology, 7(1), Article 417. https://doi.org/10.1038/s42003-024-06128-2

The concept of agonist-independent signalling that can be attenuated by inverse agonists is a fundamental element of the cubic ternary complex model of G protein-coupled receptor (GPCR) activation. This model shows how a GPCR can exist in two conform... Read More about Mechano-sensitivity of β2-adrenoceptors enhances constitutive activation of cAMP generation that is inhibited by inverse agonists.

CXCL17 is an allosteric inhibitor of CXCR4 through a mechanism of action involving glycosaminoglycans (2024)
Journal Article
White, C. W., Platt, S., Kilpatrick, L. E., Dale, N., Abhayawardana, R. S., Dekkers, S., …Hill, S. J. (2024). CXCL17 is an allosteric inhibitor of CXCR4 through a mechanism of action involving glycosaminoglycans. Science Signaling, 17(828), Article abl3758. https://doi.org/10.1126/scisignal.abl3758

CXCL17 is a chemokine principally expressed by mucosal tissues, where it facilitates chemotaxis of monocytes, dendritic cells, and macrophages and has antimicrobial properties. CXCL17 is also implicated in the pathology of inflammatory disorders and... Read More about CXCL17 is an allosteric inhibitor of CXCR4 through a mechanism of action involving glycosaminoglycans.

Role of endothelin ETA receptors in the hypertension induced by the VEGFR-2 kinase inhibitors axitinib and lenvatinib in conscious freely-moving rats (2023)
Journal Article
Pannucci, P., Van Daele, M., Cooper, S. L., Wragg, E. S., March, J., Groenen, M., Hill, S. J., & Woolard, J. (2024). Role of endothelin ETA receptors in the hypertension induced by the VEGFR-2 kinase inhibitors axitinib and lenvatinib in conscious freely-moving rats. Biochemical Pharmacology, 228, Article 116007. https://doi.org/10.1016/j.bcp.2023.116007

Receptor tyrosine kinase inhibitors (RTKIs) suppress tumour growth by targeting vascular endothelial growth factor receptor 2 (VEGFR-2) which is an important mediator of angiogenesis. Here, we demonstrate that two potent RTKIs, axitinib and lenvatini... Read More about Role of endothelin ETA receptors in the hypertension induced by the VEGFR-2 kinase inhibitors axitinib and lenvatinib in conscious freely-moving rats.

Kinetic analysis of fluorescent ligand binding to cell surface receptors: Insights into conformational changes and allosterism in living cells (2023)
Journal Article
Hill, S. J., & Kilpatrick, L. E. (2024). Kinetic analysis of fluorescent ligand binding to cell surface receptors: Insights into conformational changes and allosterism in living cells. British Journal of Pharmacology, 181(21), 4091-4102. https://doi.org/10.1111/bph.16185

Equilibrium binding assays are one of the mainstays of current drug discovery efforts to evaluate the interaction of drugs with receptors in membranes and intact cells. However, in recent years, there has been increased focus on the kinetics of the d... Read More about Kinetic analysis of fluorescent ligand binding to cell surface receptors: Insights into conformational changes and allosterism in living cells.

Probing expression of E-selectin using CRISPR-Cas9-mediated tagging with HiBiT in human endothelial cells (2023)
Journal Article
Ogrodzinski, L., Platt, S., Goulding, J., Alexander, C., Farr, T. D., Woolard, J., …Kilpatrick, L. E. (2023). Probing expression of E-selectin using CRISPR-Cas9-mediated tagging with HiBiT in human endothelial cells. iScience, 26(7), Article 107232. https://doi.org/10.1016/j.isci.2023.107232

E-selectin is expressed on endothelial cells in response to inflammatory cytokines and mediates leukocyte rolling and extravasation. However, studies have been hampered by lack of experimental approaches to monitor expression in real time in living c... Read More about Probing expression of E-selectin using CRISPR-Cas9-mediated tagging with HiBiT in human endothelial cells.

Characterisation of IL-23 receptor antagonists and disease relevant mutants using fluorescent probes (2023)
Journal Article
Lay, C. S., Isidro-Llobet, A., Kilpatrick, L. E., Craggs, P. D., & Hill, S. J. (2023). Characterisation of IL-23 receptor antagonists and disease relevant mutants using fluorescent probes. Nature Communications, 14, Article 2882. https://doi.org/10.1038/s41467-023-38541-2

Association of single nucleotide polymorphisms in the IL-23 receptor with several auto-inflammatory diseases, led to the heterodimeric receptor and its cytokine-ligand IL-23, becoming important drug targets. Successful antibody-based therapies direct... Read More about Characterisation of IL-23 receptor antagonists and disease relevant mutants using fluorescent probes.

Plasma membrane preassociation drives β-arrestin coupling to receptors and activation (2023)
Journal Article
Grimes, J., Koszegi, Z., Lanoiselée, Y., Miljus, T., O’Brien, S. L., Stepniewski, T. M., …Calebiro, D. (2023). Plasma membrane preassociation drives β-arrestin coupling to receptors and activation. Cell, 186(10), 2238-2255. https://doi.org/10.1016/j.cell.2023.04.018

β-arrestin plays a key role in G protein-coupled receptor (GPCR) signaling and desensitization. Despite recent structural advances, the mechanisms that govern receptor-β-arrestin interactions at the plasma membrane of living cells remain elusive. Her... Read More about Plasma membrane preassociation drives β-arrestin coupling to receptors and activation.

Use of NanoBiT and NanoBRET to characterise interleukin-23 receptor dimer formation in living cells (2022)
Journal Article
Lay, C. S., Kilpatrick, L. E., Craggs, P. D., & Hill, S. J. (2023). Use of NanoBiT and NanoBRET to characterise interleukin-23 receptor dimer formation in living cells. British Journal of Pharmacology, 180(11), 1444-1459. https://doi.org/10.1111/bph.16018

Background and Purpose: Interleukin-23 (IL-23) and its receptor are important drug targets for the treatment of auto-inflammatory diseases. IL-23 binds to a receptor complex composed of two single transmembrane spanning proteins IL23R and IL12Rβ1. In... Read More about Use of NanoBiT and NanoBRET to characterise interleukin-23 receptor dimer formation in living cells.

Kinetic analysis of endogenous β2-adrenoceptor-mediated cAMP GloSensorTM responses in HEK293 cells (2022)
Journal Article
Cullum, S. A., Veprintsev, D. B., & Hill, S. J. (2023). Kinetic analysis of endogenous β2-adrenoceptor-mediated cAMP GloSensorTM responses in HEK293 cells. British Journal of Pharmacology, 180(10), 1304-1315. https://doi.org/10.1111/bph.16008

Background and Aim: Standard pharmacological analysis of agonist activity utilises measurements of receptor-mediated responses at a set time-point, or at the peak response level, to characterise ligands. However, the occurrence of non-equilibrium con... Read More about Kinetic analysis of endogenous β2-adrenoceptor-mediated cAMP GloSensorTM responses in HEK293 cells.

Optimization of Peptide Linker-Based Fluorescent Ligands for the Histamine H1 Receptor (2022)
Journal Article
Kok, Z. Y., Stoddart, L. A., Mistry, S. J., Mocking, T. A., Vischer, H. F., Leurs, R., …Kellam, B. (2022). Optimization of Peptide Linker-Based Fluorescent Ligands for the Histamine H1 Receptor. Journal of Medicinal Chemistry, 65(12), 8258–8288. https://doi.org/10.1021/acs.jmedchem.2c00125

The histamine H1 receptor (H1R) has recently been implicated in mediating cell proliferation and cancer progression, therefore high affinity H1R-selective fluorescent ligands are desirable tools for further investigation of this behaviour in vitro an... Read More about Optimization of Peptide Linker-Based Fluorescent Ligands for the Histamine H1 Receptor.

Community guidelines for GPCR ligand bias: IUPHAR review 32 (2022)
Journal Article
Kolb, P., Kenakin, T., Alexander, S. P. H., Bermudez, M., Bohn, L. M., Breinholt, C. S., …Gloriam, D. E. (2022). Community guidelines for GPCR ligand bias: IUPHAR review 32. British Journal of Pharmacology, 179(14), 3651-3674. https://doi.org/10.1111/bph.15811

GPCRs modulate a plethora of physiological processes and mediate the effects of one-third of FDA-approved drugs. Depending on which ligand activates a receptor, it can engage different intracellular transducers. This ‘biased signalling’ paradigm requ... Read More about Community guidelines for GPCR ligand bias: IUPHAR review 32.

Role of the renin–angiotensin–aldosterone and kinin–kallikrein systems in the cardiovascular complications of COVID-19 and long COVID (2021)
Journal Article
Cooper, S. L., Boyle, E., Jefferson, S. R., Heslop, C. R. A., Mohan, P., Mohanraj, G. G. J., …Woolard, J. (2021). Role of the renin–angiotensin–aldosterone and kinin–kallikrein systems in the cardiovascular complications of COVID-19 and long COVID. International Journal of Molecular Sciences, 22(15), Article 8255. https://doi.org/10.3390/ijms22158255

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the virus responsible for the COVID-19 pandemic. Patients may present as asymptomatic or demonstrate mild to severe and life-threatening symptoms. Although COVID-19 has a respiratory foc... Read More about Role of the renin–angiotensin–aldosterone and kinin–kallikrein systems in the cardiovascular complications of COVID-19 and long COVID.

Probing the binding of interleukin-23 to individual receptor components and the IL-23 heteromeric receptor complex in living cells using NanoBRET (2021)
Journal Article
Lay, C. S., Bridges, A., Goulding, J., Briddon, S. J., Soloviev, Z., Craggs, P. D., & Hill, S. J. (2022). Probing the binding of interleukin-23 to individual receptor components and the IL-23 heteromeric receptor complex in living cells using NanoBRET. Cell Chemical Biology, 29(1), 19-29.e6. https://doi.org/10.1016/j.chembiol.2021.05.002

Interleukin-23 (IL-23) is a pro-inflammatory cytokine involved in the host defence against pathogens, but also implicated in the development of several autoimmune disorders. The IL- 23 receptor has become a key target for drug discovery but the exact... Read More about Probing the binding of interleukin-23 to individual receptor components and the IL-23 heteromeric receptor complex in living cells using NanoBRET.

Use of NanoBiT and NanoBRET to monitor fluorescent VEGF-A binding kinetics to VEGFR2/NRP1 heteromeric complexes in living cells (2021)
Journal Article
Peach, C. J., Kilpatrick, L. E., Woolard, J., & Hill, S. J. (2021). Use of NanoBiT and NanoBRET to monitor fluorescent VEGF-A binding kinetics to VEGFR2/NRP1 heteromeric complexes in living cells. British Journal of Pharmacology, 178(12), 2393-2411. https://doi.org/10.1111/bph.15426

Background and Purpose:
VEGF‐A is a key mediator of angiogenesis, primarily signalling via VEGF receptor 2 (VEGFR2). Endothelial cells also express the co‐receptor neuropilin‐1 (NRP1) that potentiates VEGF‐A/VEGFR2 signalling. VEGFR2 and NRP1 had d... Read More about Use of NanoBiT and NanoBRET to monitor fluorescent VEGF-A binding kinetics to VEGFR2/NRP1 heteromeric complexes in living cells.

Efficient G protein coupling is not required for agonist‐mediated internalization and membrane reorganization of the adenosine A 3 receptor (2021)
Journal Article
Stoddart, L. A., Kilpatrick, L. E., Corriden, R., Kellam, B., Briddon, S. J., & Hill, S. J. (2021). Efficient G protein coupling is not required for agonist‐mediated internalization and membrane reorganization of the adenosine A 3 receptor. FASEB Journal, 35(4), Article e21211. https://doi.org/10.1096/fj.202001729rr

Organization of G protein-coupled receptors at the plasma membrane has been the focus of much recent attention. Advanced microscopy techniques have shown that these receptors can be localized to discrete microdomains and reorganization upon ligand ac... Read More about Efficient G protein coupling is not required for agonist‐mediated internalization and membrane reorganization of the adenosine A 3 receptor.

Detection of genome-edited and endogenously expressed G protein-coupled receptors (2021)
Journal Article
Soave, M., Stoddart, L. A., White, C. W., Kilpatrick, L. E., Goulding, J., Briddon, S. J., & Hill, S. J. (2021). Detection of genome-edited and endogenously expressed G protein-coupled receptors. FEBS Journal, 288(8), 2585-2601. https://doi.org/10.1111/febs.15729

© 2021 The Authors. The FEBS Journal published by John Wiley & Sons Ltd on behalf of Federation of European Biochemical Societies. G protein-coupled receptors (GPCRs) are the largest family of membrane receptors and major targets for FDA-approved d... Read More about Detection of genome-edited and endogenously expressed G protein-coupled receptors.

Investigation of Receptor Heteromers Using NanoBRET Ligand Binding (2021)
Journal Article
Johnstone, E. K. M., See, H. B., Abhayawardana, R. S., Song, A., Rosengren, K. J., Hill, S. J., & Pfleger, K. D. G. (2021). Investigation of Receptor Heteromers Using NanoBRET Ligand Binding. International Journal of Molecular Sciences, 22(3), Article 1082. https://doi.org/10.3390/ijms22031082

Receptor heteromerization is the formation of a complex involving at least two different receptors with pharmacology that is distinct from that exhibited by its constituent receptor units. Detection of these complexes and monitoring their pharmacolog... Read More about Investigation of Receptor Heteromers Using NanoBRET Ligand Binding.