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Chen YC, Dinavahi SS, Feng Q, Gowda R, Ramisetti S, Xia X, LaPenna KB, Chirasani VR, Cho SH, Hafenstein SL, Battu MB, Berg A, Sharma AK, Kirchhausen T, Dokholyan NV, Amin S, He P, Robertson GP. Activating Sphingosine-1-phospahte signaling in endothelial cells increases myosin light chain phosphorylation to decrease endothelial permeability thereby inhibiting cancer metastasis. Cancer Lett 2021; 506:107-119. [PMID: 33600895 DOI: 10.1016/j.canlet.2021.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/22/2020] [Accepted: 01/04/2021] [Indexed: 12/23/2022]
Abstract
Targeting the metastatic process to prevent disease dissemination in cancer remains challenging. One step in the metastatic cascade involves cancer cells transiting through the vascular endothelium after inflammation has increased the permeability of this cellular layer. Reducing inflammation-mediated gaps in the vascular endothelium could potentially be used to retard metastasis. This study describes the development of a novel ASR396-containing nanoparticle designed to activate the Sphingosine-1-Phosphate Receptor 1 (S1PR1) in order to tighten the junctions between the endothelial cells lining the vascular endothelium thereby inhibiting metastasis. ASR396 was derived from the S1PR1 agonist SEW2871 through chemical modification enabling the new compound to be loaded into a nanoliposome. ASR396 retained S1PR1 binding activity and the nanoliposomal formulation (nanoASR396) made it systemically bioavailable upon intravenous injection. Studies conducted in microvessels demonstrated that nanoASR396 significantly attenuated inflammatory mediator-induced permeability increase through the S1PR1 activation. Similarly, nanoASR396 inhibited gap formation mediated by inflammatory agents on an endothelial cell monolayer by decreasing levels of phosphorylated myosin light chain protein thereby inhibiting cellular contractility. In animal models, nanoASR396 inhibited lung metastasis by up to 80%, indicating its potential for retarding melanoma metastasis. Thus, a novel bioavailable nanoparticle-based S1PR1 agonist has been developed to negate the effects of inflammatory mediators on the vascular endothelium in order to reduce the metastatic dissemination of cancer cells.
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Affiliation(s)
- Yu-Chi Chen
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Saketh S Dinavahi
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Qilong Feng
- Departments of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Raghavendra Gowda
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Srinivasa Ramisetti
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Xinghai Xia
- Departments of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Kyle B LaPenna
- Departments of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Venkat R Chirasani
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Sung Hyun Cho
- The Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Susan L Hafenstein
- Departments of Medicine, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | | | - Arthur Berg
- Departments of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Arun K Sharma
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Tom Kirchhausen
- Departments of Cell Biology, Harvard Medical School and Program in Cellular and Molecular Medicine at Boston Children's Hospital, MA, 02115, USA
| | - Nikolay V Dokholyan
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; Departments of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Shantu Amin
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA.
| | - Pingnian He
- Departments of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA.
| | - Gavin P Robertson
- Departments of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; Departments of Departments of Pathology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; Departments of Dermatology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; Departments of Surgery, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; The Foreman Foundation for Melanoma Research, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; The Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA; The Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA.
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Chen Y, Liu T, Xi Q, Jia W, Yin D, Wang X. A Computational Approach to the Study of the Binding Mode of S1P1R Agonists Based on the Active-Like Receptor Model. J Chem Inf Model 2019; 59:1624-1633. [DOI: 10.1021/acs.jcim.8b00764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yonghui Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Tianqi Liu
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Qiumu Xi
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Wenqiang Jia
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
| | - Xiaojian Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
- Department of Medicinal Chemistry, Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, P.R. China
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Neale C, Herce HD, Pomès R, García AE. Can Specific Protein-Lipid Interactions Stabilize an Active State of the Beta 2 Adrenergic Receptor? Biophys J 2016; 109:1652-62. [PMID: 26488656 DOI: 10.1016/j.bpj.2015.08.028] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/21/2015] [Accepted: 08/24/2015] [Indexed: 11/16/2022] Open
Abstract
G-protein-coupled receptors are eukaryotic membrane proteins with broad biological and pharmacological relevance. Like all membrane-embedded proteins, their location and orientation are influenced by lipids, which can also impact protein function via specific interactions. Extensive simulations totaling 0.25 ms reveal a process in which phospholipids from the membrane's cytosolic leaflet enter the empty G-protein binding site of an activated β2 adrenergic receptor and form salt-bridge interactions that inhibit ionic lock formation and prolong active-state residency. Simulations of the receptor embedded in an anionic membrane show increased lipid binding, providing a molecular mechanism for the experimental observation that anionic lipids can enhance receptor activity. Conservation of the arginine component of the ionic lock among Rhodopsin-like G-protein-coupled receptors suggests that intracellular lipid ingression between receptor helices H6 and H7 may be a general mechanism for active-state stabilization.
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Affiliation(s)
- Chris Neale
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York
| | - Henry D Herce
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York
| | - Régis Pomès
- Molecular Structure and Function, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Angel E García
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York.
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Molecular mechanisms of target recognition by lipid GPCRs: relevance for cancer. Oncogene 2015; 35:4021-35. [DOI: 10.1038/onc.2015.467] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 11/02/2015] [Accepted: 11/02/2015] [Indexed: 12/18/2022]
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Chrencik JE, Roth CB, Terakado M, Kurata H, Omi R, Kihara Y, Warshaviak D, Nakade S, Asmar-Rovira G, Mileni M, Mizuno H, Griffith MT, Rodgers C, Han GW, Velasquez J, Chun J, Stevens RC, Hanson MA. Crystal Structure of Antagonist Bound Human Lysophosphatidic Acid Receptor 1. Cell 2015; 161:1633-43. [PMID: 26091040 PMCID: PMC4476059 DOI: 10.1016/j.cell.2015.06.002] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/17/2015] [Accepted: 05/27/2015] [Indexed: 12/23/2022]
Abstract
Lipid biology continues to emerge as an area of significant therapeutic interest, particularly as the result of an enhanced understanding of the wealth of signaling molecules with diverse physiological properties. This growth in knowledge is epitomized by lysophosphatidic acid (LPA), which functions through interactions with at least six cognate G protein-coupled receptors. Herein, we present three crystal structures of LPA1 in complex with antagonist tool compounds selected and designed through structural and stability analyses. Structural analysis combined with molecular dynamics identified a basis for ligand access to the LPA1 binding pocket from the extracellular space contrasting with the proposed access for the sphingosine 1-phosphate receptor. Characteristics of the LPA1 binding pocket raise the possibility of promiscuous ligand recognition of phosphorylated endocannabinoids. Cell-based assays confirmed this hypothesis, linking the distinct receptor systems through metabolically related ligands with potential functional and therapeutic implications for treatment of disease.
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Affiliation(s)
- Jill E Chrencik
- Department of Structural Discovery, Receptos, San Diego, CA 92121, USA
| | | | - Masahiko Terakado
- Medicinal Chemistry Research Laboratories, Ono Pharmaceutical Co., Ltd., Osaka 618-8585, Japan
| | - Haruto Kurata
- Medicinal Chemistry Research Laboratories, Ono Pharmaceutical Co., Ltd., Osaka 618-8585, Japan
| | - Rie Omi
- Medicinal Chemistry Research Laboratories, Ono Pharmaceutical Co., Ltd., Osaka 618-8585, Japan
| | - Yasuyuki Kihara
- Department of Molecular and Cellular Neuroscience, Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Dora Warshaviak
- Schrödinger Inc., 120 West 45th Street, New York, NY 10036, USA
| | - Shinji Nakade
- Exploratory Research Laboratories, Ono Pharmaceutical Co., Ltd., Ibaraki 300-4247, Japan
| | | | - Mauro Mileni
- Department of Structural Discovery, Receptos, San Diego, CA 92121, USA
| | - Hirotaka Mizuno
- Department of Molecular and Cellular Neuroscience, Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA; Exploratory Research Laboratories, Ono Pharmaceutical Co., Ltd., Ibaraki 300-4247, Japan
| | - Mark T Griffith
- Department of Structural Discovery, Receptos, San Diego, CA 92121, USA
| | - Caroline Rodgers
- Department of Structural Discovery, Receptos, San Diego, CA 92121, USA
| | - Gye Won Han
- Departments of Biological Sciences and Chemistry, Bridge Institute, University of Southern California, Los Angeles, Los Angeles, CA 90089, USA
| | - Jeffrey Velasquez
- Departments of Biological Sciences and Chemistry, Bridge Institute, University of Southern California, Los Angeles, Los Angeles, CA 90089, USA
| | - Jerold Chun
- Department of Molecular and Cellular Neuroscience, Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Raymond C Stevens
- Departments of Biological Sciences and Chemistry, Bridge Institute, University of Southern California, Los Angeles, Los Angeles, CA 90089, USA; iHuman Institute, ShanghaiTech University, 2F Building 6, 99 Haike Road, Pudong New District, Shanghai, 201210, China
| | - Michael A Hanson
- Department of Structural Discovery, Receptos, San Diego, CA 92121, USA.
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Michel MC, Seifert R. Selectivity of pharmacological tools: implications for use in cell physiology. A review in the theme: Cell signaling: proteins, pathways and mechanisms. Am J Physiol Cell Physiol 2015; 308:C505-20. [PMID: 25631871 DOI: 10.1152/ajpcell.00389.2014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 01/24/2015] [Indexed: 01/08/2023]
Abstract
Pharmacological inhibitors are frequently used to identify the receptors, receptor subtypes, and associated signaling pathways involved in physiological cell responses. Based on the effects of such inhibitors conclusions are drawn about the involvement of their assumed target or lack thereof. While such inhibitors can be useful tools for a better physiological understanding, their uncritical use can lead to incorrect conclusions. This article reviews the concept of inhibitor selectivity and its implication for cell physiology. Specifically, we discuss the implications of using inhibitor vs. activator approaches, issues of direct vs. indirect pathway modulation, implications of inverse agonism and biased signaling, and those of orthosteric vs. allosteric, competitive vs. noncompetitive, and reversible vs. irreversible inhibition. Additional problems can result from inconsistent estimates of inhibitor potency and differences in potency between cell-free systems and intact cells. These concepts are illustrated by several examples of inhibitors displaying affinity for related but distinct targets or even unrelated targets. Of note, many of the issues being addressed are also applicable to genetic inhibition strategies. The main practical conclusion following from these concepts is that investigators should be critical in the choice of inhibitor, its concentrations, and its mode of application. When this advice is adhered to, small-molecule pharmacological inhibitors can be important experimental tools in the hand of physiologists.
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Affiliation(s)
- Martin C Michel
- Department of Pharmacology, Johannes Gutenberg University, Mainz, Germany; and
| | - Roland Seifert
- Department of Pharmacology, Hannover Medical School, Hannover, Germany
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Archbold JK, Martin JL, Sweet MJ. Towards selective lysophospholipid GPCR modulators. Trends Pharmacol Sci 2014; 35:219-26. [PMID: 24746475 DOI: 10.1016/j.tips.2014.03.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 03/13/2014] [Accepted: 03/14/2014] [Indexed: 01/08/2023]
Abstract
G-protein-coupled receptors (GPCRs) that recognize the lysophospholipids (LPLs) are grouped into two phylogenetically distinct families: the endothelial differentiation gene (Edg) and non-Edg GPCRs. Owing to their more recent identification, and hindered by a lack of selective pharmacological tools, our understanding of the functions and signaling pathways of the non-Edg GPCRs is still in its infancy. Targeting the non-conserved allosteric binding sites of the LPL GPCRs shows particular promise for the development of selective modulators by structure-based drug design. However, only one Edg GPCR (S1PR1) structure has been determined to date, and it has low sequence identity with the non-Edg GPCRs (<20%). Thus, a representative structure of a non-Edg GPCR remains a pressing objective for selective structure-based drug design. Obtaining selective modulators targeting the non-Edg receptors would help to unravel the biology behind these novel GPCRs and potentially will support therapeutic treatment of diseases such as cancer, inflammation, and neuropsychiatric disorders.
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Affiliation(s)
- Julia K Archbold
- Division of Chemistry and Structural Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia.
| | - Jennifer L Martin
- Division of Chemistry and Structural Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia
| | - Matthew J Sweet
- Division of Molecular and Cell Biology, The University of Queensland, Institute for Molecular Bioscience, St Lucia, Brisbane, QLD 4072, Australia
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Abstract
The sphingosine 1 phosphate receptor family has been studied widely since the initial discovery of its first member, endothelium differentiation gene 1. Since this initial discovery, the family has been renamed and the primary member of the family, the S1P1 receptor, has been targeted for a variety of disease indications and successfully drugged for the treatment of patients with relapsing multiple sclerosis. Recently, the three-dimensional structure of the S1P1 receptor has been determined by X-ray crystallography and the specifics of the sphingosine 1 phosphate ligand binding pocket mapped. Key structural features for the S1P1 receptor will be reviewed and the potential binding modes of additional pharmacologically active agents against the receptor will be analyzed in an effort to better understand the structural basis of important receptor-ligand interactions.
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Thomas T, McLean KC, McRobb FM, Manallack DT, Chalmers DK, Yuriev E. Homology modeling of human muscarinic acetylcholine receptors. J Chem Inf Model 2013; 54:243-53. [PMID: 24328076 DOI: 10.1021/ci400502u] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We have developed homology models of the acetylcholine muscarinic receptors M₁R-M₅R, based on the β₂-adrenergic receptor crystal as the template. This is the first report of homology modeling of all five subtypes of acetylcholine muscarinic receptors with binding sites optimized for ligand binding. The models were evaluated for their ability to discriminate between muscarinic antagonists and decoy compounds using virtual screening using enrichment factors, area under the ROC curve (AUC), and an early enrichment measure, LogAUC. The models produce rational binding modes of docked ligands as well as good enrichment capacity when tested against property-matched decoy libraries, which demonstrates their unbiased predictive ability. To test the relative effects of homology model template selection and the binding site optimization procedure, we generated and evaluated a naïve M₂R model, using the M₃R crystal structure as a template. Our results confirm previous findings that binding site optimization using ligand(s) active at a particular receptor, i.e. including functional knowledge into the model building process, has a more pronounced effect on model quality than target-template sequence similarity. The optimized M₁R-M₅R homology models are made available as part of the Supporting Information to allow researchers to use these structures, compare them to their own results, and thus advance the development of better modeling approaches.
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Affiliation(s)
- Trayder Thomas
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus) , 381 Royal Parade, Parkville, VIC 3052 Australia
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Yuan S, Wu R, Latek D, Trzaskowski B, Filipek S. Lipid receptor S1P₁ activation scheme concluded from microsecond all-atom molecular dynamics simulations. PLoS Comput Biol 2013; 9:e1003261. [PMID: 24098103 PMCID: PMC3789783 DOI: 10.1371/journal.pcbi.1003261] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 08/22/2013] [Indexed: 01/21/2023] Open
Abstract
Sphingosine 1-phosphate (S1P) is a lysophospholipid mediator which activates G protein–coupled sphingosine 1-phosphate receptors and thus evokes a variety of cell and tissue responses including lymphocyte trafficking, endothelial development, integrity, and maturation. We performed five all-atom 700 ns molecular dynamics simulations of the sphingosine 1-phosphate receptor 1 (S1P1) based on recently released crystal structure of that receptor with an antagonist. We found that the initial movements of amino acid residues occurred in the area of highly conserved W2696.48 in TM6 which is close to the ligand binding location. Those residues located in the central part of the receptor and adjacent to kinks of TM helices comprise of a transmission switch. Side chains movements of those residues were coupled to the movements of water molecules inside the receptor which helped in the gradual opening of intracellular part of the receptor. The most stable parts of the protein were helices TM1 and TM2, while the largest movement was observed for TM7, possibly due to the short intracellular part starting with a helix kink at P7.50, which might be the first helix to move at the intracellular side. We show for the first time the detailed view of the concerted action of the transmission switch and Trp (W6.48) rotamer toggle switch leading to redirection of water molecules flow in the central part of the receptor. That event is a prerequisite for subsequent changes in intracellular part of the receptor involving water influx and opening of the receptor structure. The activation of G-protein-coupled receptors (GPCRs) depends on small differences in agonist and antagonist structures resulting in specific forces they impose on the helical bundle of the receptor. Having the crystal structures of GPCRs in different stages of activation it is possible to investigate the successive conformational changes leading to full activation. The long molecular dynamics simulations can fill the gap spanning between those structures and provide an overview of the activation processes. The water molecules are recognized to be crucial in the activation process which link shifting of ligand in the binding site, the actions of molecular switches and finally the movements of fragments of TM helices. Here, we present five 700 ns MD simulations of lipid S1P1 receptor, either in Apo form, or bound to antagonist ML056 or natural agonist S1P. The Apo and antagonist-bound receptor structures exhibited similar behavior, with their TM bundles nearly intact, while in the case of the agonist-bound receptor we observed movements of intracellular ends of some of TM helices.
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Affiliation(s)
- Shuguang Yuan
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
- Laboratory of Physical Chemistry of Polymers and Membranes, École Polytechnique Fédérale de Lausanne, SB ISIC LCPPM, Lausanne, Switzerland
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- * E-mail: (SY); (SF)
| | - Rongliang Wu
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
| | - Dorota Latek
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
| | | | - Slawomir Filipek
- Faculty of Chemistry, University of Warsaw, Warsaw, Poland
- * E-mail: (SY); (SF)
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Integrating the puzzle pieces: the current atomistic picture of phospholipid-G protein coupled receptor interactions. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1831:2-12. [PMID: 22982815 DOI: 10.1016/j.bbalip.2012.09.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 08/31/2012] [Accepted: 09/03/2012] [Indexed: 01/09/2023]
Abstract
A compelling question of how phospholipids interact with their target receptors has been of interest since the first receptor-mediated effects were reported. The recent report of a crystal structure for the S1P(1) receptor in complex with an antagonist phospholipid provides interesting perspective on the insights that had previously been gained through structure-activity studies of the phospholipids, as well as modeling and mutagenesis studies of the receptors. This review integrates these varied lines of investigation in the context of their various contributions to our current understanding of phospholipid-receptor interactions. This article is part of a Special Issue entitled Advances in Lysophospholipid Research.
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Sanders MPA, Roumen L, van der Horst E, Lane JR, Vischer HF, van Offenbeek J, de Vries H, Verhoeven S, Chow KY, Verkaar F, Beukers MW, McGuire R, Leurs R, Ijzerman AP, de Vlieg J, de Esch IJP, Zaman GJR, Klomp JPG, Bender A, de Graaf C. A prospective cross-screening study on G-protein-coupled receptors: lessons learned in virtual compound library design. J Med Chem 2012; 55:5311-25. [PMID: 22563707 DOI: 10.1021/jm300280e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We present the systematic prospective evaluation of a protein-based and a ligand-based virtual screening platform against a set of three G-protein-coupled receptors (GPCRs): the β-2 adrenoreceptor (ADRB2), the adenosine A(2A) receptor (AA2AR), and the sphingosine 1-phosphate receptor (S1PR1). Novel bioactive compounds were identified using a consensus scoring procedure combining ligand-based (frequent substructure ranking) and structure-based (Snooker) tools, and all 900 selected compounds were screened against all three receptors. A striking number of ligands showed affinity/activity for GPCRs other than the intended target, which could be partly attributed to the fuzziness and overlap of protein-based pharmacophore models. Surprisingly, the phosphodiesterase 5 (PDE5) inhibitor sildenafil was found to possess submicromolar affinity for AA2AR. Overall, this is one of the first published prospective chemogenomics studies that demonstrate the identification of novel cross-pharmacology between unrelated protein targets. The lessons learned from this study can be used to guide future virtual ligand design efforts.
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Affiliation(s)
- Marijn P A Sanders
- Computational Drug Discovery Group, Radboud University Nijmegen Medical Centre, Geert Grooteplein, Nijmegen, The Netherlands
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