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Duffet L, Williams ET, Gresch A, Chen S, Bhat MA, Benke D, Hartrampf N, Patriarchi T. Optical tools for visualizing and controlling human GLP-1 receptor activation with high spatiotemporal resolution. eLife 2023; 12:86628. [PMID: 37265064 DOI: 10.7554/elife.86628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
The glucagon-like peptide-1 receptor (GLP1R) is a broadly expressed target of peptide hormones with essential roles in energy and glucose homeostasis, as well as of the blockbuster weight-loss drugs semaglutide and liraglutide. Despite its large clinical relevance, tools to investigate the precise activation dynamics of this receptor with high spatiotemporal resolution are limited. Here, we introduce a novel genetically encoded sensor based on the engineering of a circularly permuted green fluorescent protein into the human GLP1R, named GLPLight1. We demonstrate that fluorescence signal from GLPLight1 accurately reports the expected receptor conformational activation in response to pharmacological ligands with high sensitivity (max ΔF/F0=528%) and temporal resolution (τON = 4.7 s). We further demonstrated that GLPLight1 shows comparable responses to glucagon-like peptide-1 (GLP-1) derivatives as observed for the native receptor. Using GLPLight1, we established an all-optical assay to characterize a novel photocaged GLP-1 derivative (photo-GLP1) and to demonstrate optical control of GLP1R activation. Thus, the new all-optical toolkit introduced here enhances our ability to study GLP1R activation with high spatiotemporal resolution.
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Affiliation(s)
- Loïc Duffet
- Institute of Pharmacology and Toxicology, University of Zürich, Zurich, Switzerland
| | - Elyse T Williams
- Department of Chemistry, University of Zürich, Zürich, Switzerland
| | - Andrea Gresch
- Institute of Pharmacology and Toxicology, University of Zürich, Zurich, Switzerland
| | - Simin Chen
- Department of Chemistry, University of Zürich, Zürich, Switzerland
| | - Musadiq A Bhat
- Institute of Pharmacology and Toxicology, University of Zürich, Zurich, Switzerland
| | - Dietmar Benke
- Institute of Pharmacology and Toxicology, University of Zürich, Zurich, Switzerland
- Neuroscience Center Zurich, University and ETH Zürich, Zürich, Switzerland
| | - Nina Hartrampf
- Department of Chemistry, University of Zürich, Zürich, Switzerland
| | - Tommaso Patriarchi
- Institute of Pharmacology and Toxicology, University of Zürich, Zurich, Switzerland
- Neuroscience Center Zurich, University and ETH Zürich, Zürich, Switzerland
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Williams ET, Hartrampf N. DMCCB Basel Symposium 2022: Intrinsically Disordered Proteins as Drug Targets, Online, 31st January, 2022. Chimia (Aarau) 2022. [DOI: 10.2533/chimia.2022.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Jamaluddin A, Chuang CL, Williams ET, Siow A, Yang SH, Harris PWR, Petersen JSSM, Bower RL, Chand S, Brimble MA, Walker CS, Hay DL, Loomes KM. Lipidated Calcitonin Gene-Related Peptide (CGRP) Peptide Antagonists Retain CGRP Receptor Activity and Attenuate CGRP Action In Vivo. Front Pharmacol 2022; 13:832589. [PMID: 35341216 PMCID: PMC8942775 DOI: 10.3389/fphar.2022.832589] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Signaling through calcitonin gene-related peptide (CGRP) receptors is associated with pain, migraine, and energy expenditure. Small molecule and monoclonal antibody CGRP receptor antagonists that block endogenous CGRP action are in clinical use as anti-migraine therapies. By comparison, the potential utility of peptide antagonists has received less attention due to suboptimal pharmacokinetic properties. Lipidation is an established strategy to increase peptide half-life in vivo. This study aimed to explore the feasibility of developing lipidated CGRP peptide antagonists that retain receptor antagonist activity in vitro and attenuate endogenous CGRP action in vivo. CGRP peptide analogues based on the archetypal CGRP receptor antagonist, CGRP8-37, were palmitoylated at the N-terminus, position 24, and near the C-terminus at position 35. The antagonist activities of the lipidated peptide analogues were tested in vitro using transfected Cos-7 cells expressing either the human or mouse CGRP receptor, amylin subtype 1 (AMY1) receptor, adrenomedullin (AM) receptors, or calcitonin receptor. Antagonist activities were also evaluated in SK-N-MC cells that endogenously express the human CGRP receptor. Lipidated peptides were then tested for their ability to antagonize endogenous CGRP action in vivo using a capsaicin-induced dermal vasodilation (CIDV) model in C57/BL6J mice. All lipidated peptides except for the C-terminally modified analogue retained potent antagonist activity compared to CGRP8-37 towards the CGRP receptor. The lipidated peptides also retained, and sometimes gained, antagonist activities at AMY1, AM1 and AM2 receptors. Several lipidated peptides produced robust inhibition of CIDV in mice. This study demonstrates that selected lipidated peptide antagonists based on αCGRP8-37 retain potent antagonist activity at the CGRP receptor and are capable of inhibition of endogenous CGRP action in vivo. These findings suggest that lipidation can be applied to peptide antagonists, such as αCGRP8-37 and are a potential strategy for antagonizing CGRP action.
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Affiliation(s)
- Aqfan Jamaluddin
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Chia-Lin Chuang
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Elyse T Williams
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Andrew Siow
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Sung Hyun Yang
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Paul W R Harris
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | | | - Rebekah L Bower
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Shanan Chand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | | | - Debbie L Hay
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand
| | - Kerry M Loomes
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
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Grant-Mackie E, Williams ET, Harris PWR, Brimble MA. Aminovinyl Cysteine Containing Peptides: A Unique Motif That Imparts Key Biological Activity. JACS Au 2021; 1:1527-1540. [PMID: 34723257 PMCID: PMC8549060 DOI: 10.1021/jacsau.1c00308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Natural products that contain distinctive chemical functionality can serve as useful starting points to develop Nature's compounds into viable therapeutics. Peptide natural products, an under-represented class of medicines, such as ribosomally synthesized and post-translationally modified peptides (RiPPs), often contain noncanonical amino acids and structural motifs that give rise to potent biological activity. However, these motifs can be difficult to obtain synthetically, thereby limiting the transition of RiPPs to the clinic. Aminovinyl cysteine containing peptides, which display potent antimicrobial or anticancer activity, possess an intricate C-terminal ring that is critical for bioactivity. To date, successful methods for the total chemical synthesis of such peptides are yet to be realized, although several advancements have been achieved. In this perspective, we review this burgeoning class of aminovinyl cysteine peptides and critically evaluate the chemical strategies to install the distinct aminovinyl cysteine motif.
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Affiliation(s)
- Emily
S. Grant-Mackie
- School
of Chemical Sciences, The University of
Auckland, 23 Symonds Street, Auckland 1132, New Zealand
| | - Elyse T. Williams
- School
of Chemical Sciences, The University of
Auckland, 23 Symonds Street, Auckland 1132, New Zealand
| | - Paul W. R. Harris
- School
of Chemical Sciences, The University of
Auckland, 23 Symonds Street, Auckland 1132, New Zealand
- School
of Biological Sciences, The University of
Auckland, 3b Symonds
Street, Auckland 1132, New Zealand
- The
Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3b Symonds Street, Auckland 1132, New Zealand
| | - Margaret A. Brimble
- School
of Chemical Sciences, The University of
Auckland, 23 Symonds Street, Auckland 1132, New Zealand
- School
of Biological Sciences, The University of
Auckland, 3b Symonds
Street, Auckland 1132, New Zealand
- The
Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3b Symonds Street, Auckland 1132, New Zealand
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De Leon Rodriguez LM, Williams ET, Brimble MA. Frontispiece: Chemical Synthesis of Bioactive Naturally Derived Cyclic Peptides Containing Ene‐Like Rigidifying Motifs. Chemistry 2018. [DOI: 10.1002/chem.201886862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Elyse T. Williams
- School of Chemical SciencesThe University of Auckland 23 Symonds St. Auckland 1142 New Zealand
| | - Margaret A. Brimble
- School of Biological SciencesThe University of Auckland 3 Symonds St. Auckland 1142 New Zealand
- School of Chemical SciencesThe University of Auckland 23 Symonds St. Auckland 1142 New Zealand
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De Leon Rodriguez LM, Williams ET, Brimble MA. Chemical Synthesis of Bioactive Naturally Derived Cyclic Peptides Containing Ene‐Like Rigidifying Motifs. Chemistry 2018; 24:17869-17880. [DOI: 10.1002/chem.201802533] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Indexed: 12/12/2022]
Affiliation(s)
| | - Elyse T. Williams
- School of Chemical SciencesThe University of Auckland 23 Symonds St. Auckland 1142 New Zealand
| | - Margaret A. Brimble
- School of Biological SciencesThe University of Auckland 3 Symonds St. Auckland 1142 New Zealand
- School of Chemical SciencesThe University of Auckland 23 Symonds St. Auckland 1142 New Zealand
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Williams ET, Harris PWR, Jamaluddin MA, Loomes KM, Hay DL, Brimble MA. Solid-Phase Thiol-Ene Lipidation of Peptides for the Synthesis of a Potent CGRP Receptor Antagonist. Angew Chem Int Ed Engl 2018; 57:11640-11643. [PMID: 29978532 DOI: 10.1002/anie.201805208] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Indexed: 12/11/2022]
Abstract
We report a new method herein coined SP-CLipPA (solid-phase cysteine lipidation of a peptide or amino acid) for the synthesis of mono-S-lipidated peptides. This technique utilizes thiol-ene chemistry for conjugation of a vinyl ester to a free thiol of a semiprotected, resin-bound peptide. Advantages of SP-CLipPA include: ease of handling, conversions of up to 91 %, by-product removal by simple filtration, and a single purification step. Additionally, the desired lipidated products show high chromatographic separation from impurities, thus facilitating RP-HPLC purification. To showcase the utility of SP-CLipPA, we synthesized a potent calcitonin gene-related peptide (CGRP) receptor antagonist peptide in excellent yield and purity. This peptide, selected from a series of lipidated analogues of CGRP8-37 and CGRP7-37 , has potential for the treatment of migraine.
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Affiliation(s)
- Elyse T Williams
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Paul W R Harris
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1142, New Zealand.,School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Muhammad A Jamaluddin
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Kerry M Loomes
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Debbie L Hay
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1142, New Zealand.,School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1142, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences, The University of Auckland, Auckland, 1142, New Zealand
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Williams ET, Harris PWR, Jamaluddin MA, Loomes KM, Hay DL, Brimble MA. Solid-Phase Thiol-Ene Lipidation of Peptides for the Synthesis of a Potent CGRP Receptor Antagonist. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805208] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Elyse T. Williams
- School of Chemical Sciences; The University of Auckland; 23 Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
| | - Paul W. R. Harris
- School of Chemical Sciences; The University of Auckland; 23 Symonds Street Auckland 1142 New Zealand
- School of Biological Sciences; The University of Auckland; 3A Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
| | - Muhammad A. Jamaluddin
- School of Biological Sciences; The University of Auckland; 3A Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
| | - Kerry M. Loomes
- School of Biological Sciences; The University of Auckland; 3A Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
| | - Debbie L. Hay
- School of Biological Sciences; The University of Auckland; 3A Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences; The University of Auckland; 23 Symonds Street Auckland 1142 New Zealand
- School of Biological Sciences; The University of Auckland; 3A Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery; School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
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Williams ET, Yang K, Graves L, Chasens E. 0723 Predictors of Abnormal Sleep Duration in Older Adults With Arthritis. Sleep 2018. [DOI: 10.1093/sleep/zsy061.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - K Yang
- Rutgers University The State University of New Jersey, Newark, NJ
| | - L Graves
- University of Pittsburgh, Pittsburgh, PA
| | - E Chasens
- University of Pittsburgh, Pittsburgh, PA
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Santamaria JP, Williams ET, Desautels DA. Hyperbaric oxygen therapy in pediatrics. Adv Pediatr 1995; 42:335-66. [PMID: 8540432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- J P Santamaria
- Wound and Hyperbaric Center; Pediatric Emergency Department, St. Joseph's Hospital, Tampa, FL, USA
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Shaw JA, Williams ET. As I see it. Human rights begins with you. Am Nurse 1990; 22:6. [PMID: 2382887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
The analytical technique of particle-induced X-ray emission (PIXE) is described, and recent applications to problems in biomedical research are surveyed.
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Affiliation(s)
- E T Williams
- Department of Chemistry, City University of New York, Brooklyn College, 11210, Brooklyn, NY
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Williams ET. The Nuffield Trust. Indian J Physiol Pharmacol 1972; 46:47-51. [PMID: 5009361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Williams ET. The Nuffield Trust. Hospitals 1972; 46:47-50. [PMID: 4669043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Williams ET. A SPECTROPHOTOMETRIC STUDY OF CLASS A STARS. Proc Natl Acad Sci U S A 1929; 15:832-4. [PMID: 16577247 PMCID: PMC522566 DOI: 10.1073/pnas.15.11.832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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