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De Pascali F, Inoue A, Benovic JL. Diverse pathways in GPCR-mediated activation of Ca 2+ mobilization in HEK293 cells. J Biol Chem 2024:107882. [PMID: 39395798 DOI: 10.1016/j.jbc.2024.107882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 09/26/2024] [Accepted: 10/04/2024] [Indexed: 10/14/2024] Open
Abstract
G protein-coupled receptors (GPCRs) transduce extracellular stimuli into intracellular signaling. Ca2+ is a well-known second messenger that can be induced by GPCR activation through the primary canonical pathways involving Gαq- and Gβγ-mediated activation of phospholipase C-β (PLCβ). While some Gs-coupled receptors are shown to trigger Ca2+ mobilization, underlying mechanisms remain elusive. Here we evaluated whether Gs-coupled receptors including the β2-adrenergic receptor (β2AR) and the prostaglandin EP2 and EP4 receptors (EP2R and EP4R) that are endogenously expressed in HEK293 cells utilize common pathways for mediating Ca2+ mobilization. For the β2AR, we found an essential role for Gq in agonist-promoted Ca2+ mobilization while genetic or pharmacological inhibition of Gs or Gi had minimal effect. β-agonist-promoted Ca2+ mobilization was effectively blocked by the Gq-selective inhibitor YM-254890 and was not observed in ΔGαq/11 or ΔPLCβ cells. Bioluminescence resonance energy transfer analysis also suggests agonist-dependent association of the β2AR with Gq. For the EP2R, which couples to Gs, agonist treatment induced Ca2+ mobilization in a pertussis toxin (PTX)-sensitive but YM-254890-insensitive manner. In contrast, EP4R, which couples to Gs and Gi, exhibited Ca2+ mobilization that was sensitive to both PTX and YM-254890. Interestingly, both EP2R and EP4R were largely unable to induce Ca2+ mobilization in ΔGαs or ΔPLCβ cells, supporting a strong dependency on Gs signaling in HEK293 cells. Taken together, we identify differences in the signaling pathways that are utilized to mediate Ca2+ mobilization in HEK293 cells where the β2AR primarily utilizes Gq, EP2R uses Gs and Gi, and EP4R utilizes Gs, Gi and Gq.
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Affiliation(s)
- Francesco De Pascali
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107 USA
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578 Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501 Japan
| | - Jeffrey L Benovic
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, 19107 USA.
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2
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Alnouri MW, Roquid KA, Bonnavion R, Cho H, Heering J, Kwon J, Jäger Y, Wang S, Günther S, Wettschureck N, Geisslinger G, Gurke R, Müller CE, Proschak E, Offermanns S. SPMs exert anti-inflammatory and pro-resolving effects through positive allosteric modulation of the prostaglandin EP4 receptor. Proc Natl Acad Sci U S A 2024; 121:e2407130121. [PMID: 39365815 DOI: 10.1073/pnas.2407130121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 08/20/2024] [Indexed: 10/06/2024] Open
Abstract
Inflammation is a protective response to pathogens and injury. To be effective it needs to be resolved by endogenous mechanisms in order to avoid prolonged and excessive inflammation, which can become chronic. Specialized pro-resolving mediators (SPMs) are a group of lipids derived from omega-3 fatty acids, which can induce the resolution of inflammation. How SPMs exert their anti-inflammatory and pro-resolving effects is, however, not clear. Here, we show that SPMs such as protectins, maresins, and D-series resolvins function as biased positive allosteric modulators (PAM) of the prostaglandin E2 (PGE2) receptor EP4 through an intracellular binding site. They increase PGE2-induced Gs-mediated formation of cAMP and thereby promote anti-inflammatory signaling of EP4. In addition, SPMs endow the endogenous EP4 receptor on macrophages with the ability to couple to Gi-type G-proteins, which converts the EP4 receptor on macrophages from an anti-phagocytotic receptor to one increasing phagocytosis, a central mechanism of the pro-resolving activity of synthetic SPMs. In the absence of the EP4 receptor, SPMs lose their anti-inflammatory and pro-resolving activity in vitro and in vivo. Our findings reveal an unusual mechanism of allosteric receptor modulation by lipids and provide a mechanism by which synthetic SPMs exert pro-resolving and anti-inflammatory effects, which may facilitate approaches to treat inflammation.
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Affiliation(s)
- Mohamad Wessam Alnouri
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Kenneth Anthony Roquid
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Rémy Bonnavion
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Haaglim Cho
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Jan Heering
- Fraunhofer Institute for Translational Medicine and Pharmacology and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, Frankfurt am Main 60596, Germany
| | - Jeonghyeon Kwon
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Yannick Jäger
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - ShengPeng Wang
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, Deep Sequencing Platform, Bad Nauheim 61231, Germany
| | - Nina Wettschureck
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
- Center for Molecular Medicine, Goethe University Frankfurt, Frankfurt 60590, Germany
- Excellence Cluster Cardiopulmonary Institute (CPI), Bad Nauheim Bad 61231, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main site, Bad Nauheim 61231, Germany
| | - Gerd Geisslinger
- Fraunhofer Institute for Translational Medicine and Pharmacology and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, Frankfurt am Main 60596, Germany
- Institute of Clinical Pharmacology, Goethe University, Frankfurt am Main 60590, Germany
| | - Robert Gurke
- Fraunhofer Institute for Translational Medicine and Pharmacology and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, Frankfurt am Main 60596, Germany
- Institute of Clinical Pharmacology, Goethe University, Frankfurt am Main 60590, Germany
| | - Christa E Müller
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, Bonn 53121, Germany
- PharmaCenter Bonn, University of Bonn, Bonn 53121, Germany
| | - Ewgenij Proschak
- Fraunhofer Institute for Translational Medicine and Pharmacology and Fraunhofer Cluster of Excellence for Immune Mediated Diseases, Frankfurt am Main 60596, Germany
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Stefan Offermanns
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
- Center for Molecular Medicine, Goethe University Frankfurt, Frankfurt 60590, Germany
- Excellence Cluster Cardiopulmonary Institute (CPI), Bad Nauheim Bad 61231, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main site, Bad Nauheim 61231, Germany
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3
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Zhou T, Cheng J, He S, Zhang C, Gao MX, Zhang LJ, Sun JP, Zhu Y, Ai D. The sphingosine-1-phosphate receptor 1 mediates the atheroprotective effect of eicosapentaenoic acid. Nat Metab 2024; 6:1566-1583. [PMID: 38907081 DOI: 10.1038/s42255-024-01070-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 05/23/2024] [Indexed: 06/23/2024]
Abstract
Omega-3 polyunsaturated fatty acids (ω-3 PUFAs) have been associated with potential cardiovascular benefits, partly attributed to their bioactive metabolites. However, the underlying mechanisms responsible for these advantages are not fully understood. We previously reported that metabolites of the cytochrome P450 pathway derived from eicosapentaenoic acid (EPA) mediated the atheroprotective effect of ω-3 PUFAs. Here, we show that 17,18-epoxyeicosatetraenoic acid (17,18-EEQ) and its receptor, sphingosine-1-phosphate receptor 1 (S1PR1), in endothelial cells (ECs) can inhibit oscillatory shear stress- or tumor necrosis factor-α-induced endothelial activation in cultured human ECs. Notably, the atheroprotective effect of 17,18-EEQ and purified EPA is circumvented in male mice with endothelial S1PR1 deficiency. Mechanistically, the anti-inflammatory effect of 17,18-EEQ relies on calcium release-mediated endothelial nitric oxide synthase (eNOS) activation, which is abolished upon inhibition of S1PR1 or Gq signaling. Furthermore, 17,18-EEQ allosterically regulates the conformation of S1PR1 through a polar interaction with Lys34Nter. Finally, we show that Vascepa, a prescription drug containing highly purified and stable EPA ethyl ester, exerts its cardiovascular protective effect through the 17,18-EEQ-S1PR1 pathway in male and female mice. Collectively, our findings indicate that the anti-inflammatory effect of 17,18-EEQ involves the activation of the S1PR1-Gq-Ca2+-eNOS axis in ECs, offering a potential therapeutic target against atherosclerosis.
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Affiliation(s)
- Ting Zhou
- State Key Laboratory of Experimental Hematology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Jie Cheng
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Shuo He
- State Key Laboratory of Experimental Hematology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Chao Zhang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ming-Xin Gao
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Li-Jun Zhang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Jin-Peng Sun
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.
| | - Yi Zhu
- State Key Laboratory of Experimental Hematology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
| | - Ding Ai
- State Key Laboratory of Experimental Hematology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
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4
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Fan W, Xu Y, He X, Luo P, Zhu J, Li J, Wang R, Yuan Q, Wu K, Hu W, Zhao Y, Xu S, Cheng X, Wang Y, Xu HE, Zhuang Y. Molecular basis for the activation of PAF receptor by PAF. Cell Rep 2024; 43:114422. [PMID: 38943642 DOI: 10.1016/j.celrep.2024.114422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/07/2024] [Accepted: 06/14/2024] [Indexed: 07/01/2024] Open
Abstract
Platelet-activating factor (PAF) is a potent phospholipid mediator crucial in multiple inflammatory and immune responses through binding and activating the PAF receptor (PAFR). However, drug development targeting the PAFR has been limited, partly due to an incomplete understanding of its activation mechanism. Here, we present a 2.9-Å structure of the PAF-bound PAFR-Gi complex. Structural and mutagenesis analyses unveil a specific binding mode of PAF, with the choline head forming cation-π interactions within PAFR hydrophobic pocket, while the alkyl tail penetrates deeply into an aromatic cleft between TM4 and TM5. Binding of PAF modulates conformational changes in key motifs of PAFR, triggering the outward movement of TM6, TM7, and helix 8 for G protein coupling. Molecular dynamics simulation suggests a membrane-side pathway for PAF entry into PAFR via the TM4-TM5 cavity. By providing molecular insights into PAFR signaling, this work contributes a foundation for developing therapeutic interventions targeting PAF signal axis.
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Affiliation(s)
- Wenjia Fan
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210046, China; The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Youwei Xu
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xinheng He
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Luo
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jingpeng Zhu
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Junrui Li
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ruolan Wang
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingning Yuan
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; The Shanghai Advanced Electron Microscope Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Kai Wu
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; The Shanghai Advanced Electron Microscope Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Hu
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; The Shanghai Advanced Electron Microscope Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yuxi Zhao
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210046, China; The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Shiqi Xu
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xi Cheng
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Wang
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - H Eric Xu
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210046, China; The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Youwen Zhuang
- The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; Medicinal Bioinformatics Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.
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5
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Szwabowski GL, Griffing M, Mugabe EJ, O’Malley D, Baker LN, Baker DL, Parrill AL. G Protein-Coupled Receptor-Ligand Pose and Functional Class Prediction. Int J Mol Sci 2024; 25:6876. [PMID: 38999982 PMCID: PMC11241240 DOI: 10.3390/ijms25136876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
G protein-coupled receptor (GPCR) transmembrane protein family members play essential roles in physiology. Numerous pharmaceuticals target GPCRs, and many drug discovery programs utilize virtual screening (VS) against GPCR targets. Improvements in the accuracy of predicting new molecules that bind to and either activate or inhibit GPCR function would accelerate such drug discovery programs. This work addresses two significant research questions. First, do ligand interaction fingerprints provide a substantial advantage over automated methods of binding site selection for classical docking? Second, can the functional status of prospective screening candidates be predicted from ligand interaction fingerprints using a random forest classifier? Ligand interaction fingerprints were found to offer modest advantages in sampling accurate poses, but no substantial advantage in the final set of top-ranked poses after scoring, and, thus, were not used in the generation of the ligand-receptor complexes used to train and test the random forest classifier. A binary classifier which treated agonists, antagonists, and inverse agonists as active and all other ligands as inactive proved highly effective in ligand function prediction in an external test set of GPR31 and TAAR2 candidate ligands with a hit rate of 82.6% actual actives within the set of predicted actives.
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Affiliation(s)
| | | | | | | | | | - Daniel L. Baker
- Department of Chemistry, University of Memphis, Memphis, TN 38152, USA; (G.L.S.); (M.G.); (E.J.M.); (D.O.); (L.N.B.)
| | - Abby L. Parrill
- Department of Chemistry, University of Memphis, Memphis, TN 38152, USA; (G.L.S.); (M.G.); (E.J.M.); (D.O.); (L.N.B.)
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6
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Hall A, Chatzopoulou M, Frost J. Bioisoteres for carboxylic acids: From ionized isosteres to novel unionized replacements. Bioorg Med Chem 2024; 104:117653. [PMID: 38579492 DOI: 10.1016/j.bmc.2024.117653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/05/2024] [Accepted: 02/19/2024] [Indexed: 04/07/2024]
Abstract
Carboxylic acids are key pharmacophoric elements in many molecules. They can be seen as a problem by some, due to perceived permeability challenges, potential for high plasma protein binding and the risk of forming reactive metabolites due to acyl-glucuronidation. By others they are viewed more favorably as they can decrease lipophilicity by adding an ionizable center which can be beneficial for solubility, and can add enthalpic interactions with the target protein. However, there are many instances where the replacement of a carboxylic acid with a bioisosteric group is required. This has led to the development of a number of ionizable groups which sufficiently mimic the carboxylic acid functionality whilst improving, for example, the metabolic profile of the molecule in question. An alternative strategy involves replacement of the carboxylate by neutral functional groups. This review initially details carefully selected examples whereby tetrazoles, acyl sulfonamides or isoxazolols have been beneficially utilized as carboxylic acid bioisosteres altering physicohemical properties, interactions with the target and metabolism and/or pharmacokinetics, before delving further into the binding mode of carboxylic acid derivatives with their target proteins. This analysis highlights new ways to consider the replacement of carboxylic acids by neutral bioisosteric groups which either rely on hydrogen bonds or cation-π interactions. It should serve as a useful guide for scientists working in drug discovery.
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Affiliation(s)
- Adrian Hall
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK.
| | - Maria Chatzopoulou
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK
| | - James Frost
- UCB, Chemin du Foriest, Braine l'Alleud, Belgium, 1420 UCB, 216 Bath Road, Slough SL1 3WE, UK
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7
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Hoppe N, Harrison S, Hwang SH, Chen Z, Karelina M, Deshpande I, Suomivuori CM, Palicharla VR, Berry SP, Tschaikner P, Regele D, Covey DF, Stefan E, Marks DS, Reiter JF, Dror RO, Evers AS, Mukhopadhyay S, Manglik A. GPR161 structure uncovers the redundant role of sterol-regulated ciliary cAMP signaling in the Hedgehog pathway. Nat Struct Mol Biol 2024; 31:667-677. [PMID: 38326651 PMCID: PMC11221913 DOI: 10.1038/s41594-024-01223-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 01/08/2024] [Indexed: 02/09/2024]
Abstract
The orphan G protein-coupled receptor (GPCR) GPR161 plays a central role in development by suppressing Hedgehog signaling. The fundamental basis of how GPR161 is activated remains unclear. Here, we determined a cryogenic-electron microscopy structure of active human GPR161 bound to heterotrimeric Gs. This structure revealed an extracellular loop 2 that occupies the canonical GPCR orthosteric ligand pocket. Furthermore, a sterol that binds adjacent to transmembrane helices 6 and 7 stabilizes a GPR161 conformation required for Gs coupling. Mutations that prevent sterol binding to GPR161 suppress Gs-mediated signaling. These mutants retain the ability to suppress GLI2 transcription factor accumulation in primary cilia, a key function of ciliary GPR161. By contrast, a protein kinase A-binding site in the GPR161 C terminus is critical in suppressing GLI2 ciliary accumulation. Our work highlights how structural features of GPR161 interface with the Hedgehog pathway and sets a foundation to understand the role of GPR161 function in other signaling pathways.
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Affiliation(s)
- Nicholas Hoppe
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
- Biophysics Graduate Program, University of California, San Francisco, CA, USA
| | - Simone Harrison
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
- Biophysics Graduate Program, University of California, San Francisco, CA, USA
| | - Sun-Hee Hwang
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ziwei Chen
- Department of Anesthesiology, Washington University School of Medicine, St Louis, MO, USA
- Taylor Institute for Innovative Psychiatric Research, St Louis, MO, USA
| | - Masha Karelina
- Biophysics Program, Stanford University, Stanford, CA, USA
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Ishan Deshpande
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
| | - Carl-Mikael Suomivuori
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Vivek R Palicharla
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Samuel P Berry
- Department of Systems Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Philipp Tschaikner
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck, Austria
- Tyrolean Cancer Research Institute (TKFI), Innsbruck, Austria
| | - Dominik Regele
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck, Austria
| | - Douglas F Covey
- Department of Anesthesiology, Washington University School of Medicine, St Louis, MO, USA
- Taylor Institute for Innovative Psychiatric Research, St Louis, MO, USA
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
- Department of Developmental Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Eduard Stefan
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck, Austria
- Tyrolean Cancer Research Institute (TKFI), Innsbruck, Austria
| | - Debora S Marks
- Department of Systems Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Jeremy F Reiter
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Ron O Dror
- Biophysics Program, Stanford University, Stanford, CA, USA
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Alex S Evers
- Department of Anesthesiology, Washington University School of Medicine, St Louis, MO, USA
- Taylor Institute for Innovative Psychiatric Research, St Louis, MO, USA
- Department of Developmental Biology, Washington University School of Medicine, St Louis, MO, USA
| | - Saikat Mukhopadhyay
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Aashish Manglik
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, USA.
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA.
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8
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Yang Z, Wang JY, Yang F, Zhu KK, Wang GP, Guan Y, Ning SL, Lu Y, Li Y, Zhang C, Zheng Y, Zhou SH, Wang XW, Wang MW, Xiao P, Yi F, Zhang C, Zhang PJ, Xu F, Liu BH, Zhang H, Yu X, Gao N, Sun JP. Structure of GPR101-Gs enables identification of ligands with rejuvenating potential. Nat Chem Biol 2024; 20:484-492. [PMID: 37945893 DOI: 10.1038/s41589-023-01456-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 09/21/2023] [Indexed: 11/12/2023]
Abstract
GPR101 is an orphan G protein-coupled receptor actively participating in energy homeostasis. Here we report the cryo-electron microscopy structure of GPR101 constitutively coupled to Gs heterotrimer, which reveals unique features of GPR101, including the interaction of extracellular loop 2 within the 7TM bundle, a hydrophobic chain packing-mediated activation mechanism and the structural basis of disease-related mutants. Importantly, a side pocket is identified in GPR101 that facilitates in silico screening to identify four small-molecule agonists, including AA-14. The structure of AA-14-GPR101-Gs provides direct evidence of the AA-14 binding at the side pocket. Functionally, AA-14 partially restores the functions of GH/IGF-1 axis and exhibits several rejuvenating effects in wild-type mice, which are abrogated in Gpr101-deficient mice. In summary, we provide a structural basis for the constitutive activity of GPR101. The structure-facilitated identification of GPR101 agonists and functional analysis suggest that targeting this orphan receptor has rejuvenating potential.
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Affiliation(s)
- Zhao Yang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jun-Yan Wang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Fan Yang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Kong-Kai Zhu
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guo-Peng Wang
- State Key Laboratory of Membrane Biology, Peking-Tsinghua Joint Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China
| | - Ying Guan
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shang-Lei Ning
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Yan Lu
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yu Li
- State Key Laboratory of Membrane Biology, Peking-Tsinghua Joint Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China
| | - Chao Zhang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuan Zheng
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
- Key Laboratory of Molecular Cardiovascular Science, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Ministry of Education, Beijing, China
| | - Shu-Hua Zhou
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xin-Wen Wang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming-Wei Wang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Peng Xiao
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fan Yi
- Key Laboratory of Infection and Immunity of Shandong Province, Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Cheng Zhang
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Peng-Ju Zhang
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fei Xu
- iHuman Institute, ShanghaiTech University, Shanghai, China
| | - Bao-Hua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Ning Gao
- State Key Laboratory of Membrane Biology, Peking-Tsinghua Joint Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China.
| | - Jin-Peng Sun
- NHC Key Laboratory of Otorhinolaryngology, Qilu Hospital of Shandong University, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China.
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, China.
- Key Laboratory of Molecular Cardiovascular Science, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Ministry of Education, Beijing, China.
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9
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Li X, Zhang X, Wen X, Zhang D, Qu C, Miao X, Zhang W, Zhang R, Liu G, Xiao P, Sun JP, Gong W. Structural basis for ligand recognition and activation of the prostanoid receptors. Cell Rep 2024; 43:113893. [PMID: 38446662 DOI: 10.1016/j.celrep.2024.113893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/16/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Prostaglandin F2α (PGF2α) and thromboxane A2 (TXA2) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through activating PGF2α receptor (FP) and TXA2 receptor (TP). Ligands targeting FP and TP have demonstrated efficacy in treating conditions like glaucoma and cardiovascular diseases in humans, as well as reproductive-related diseases in animals. Here, we present five cryoelectron microscopy structures illustrating FP and TP in complex with Gq and bound to PGF2α (endogenous ligand), latanoprost acid (a clinical drug), and two other synthetic agonists. Combined with mutational and functional studies, these structures reveal not only structural features for the specific recognition of endogenous ligands and attainment of receptor selectivity of FP and TP but also the common mechanisms of receptor activation and Gq protein coupling. The findings may enrich our knowledge of ligand recognition and signal transduction of the prostanoid receptor family and facilitate rational ligand design toward these two receptors.
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Affiliation(s)
- Xiu Li
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xuan Zhang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Xin Wen
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Daolai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Changxiu Qu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinyi Miao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Wenkai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Ru Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Guibing Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Jin-Peng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China; Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Weimin Gong
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
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10
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Suno R. Exploring Diverse Signaling Mechanisms of G Protein-Coupled Receptors through Structural Biology. J Biochem 2024; 175:357-365. [PMID: 38382646 DOI: 10.1093/jb/mvae018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 01/29/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024] Open
Abstract
Recent advancements in structural biology have facilitated the elucidation of complexes involving G protein-coupled receptors (GPCRs) and their associated signal transducers, including G proteins and arrestins. A comprehensive analysis of these structures provides profound insights into the dynamics of signaling mechanisms. These structural revelations can potentially guide the development of drugs to minimize side effects through targeted and selective signaling. Understanding the binding modes of different signal-selective ligands is imperative for future drug research and development. Here, we conduct a comparative examination of the structural details of various GPCR-signal transducer complexes and delve into the molecular basis of the currently proposed signal selectivity.
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Affiliation(s)
- Ryoji Suno
- Department of Medical Chemistry, Kansai Medical University, Hirakata, 573-1010, Japan
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11
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Vu NP, Ali L, Chua TL, Barr DA, Hendrickson HP, Trivedi DJ. Computational Insights into Prostaglandin E 2 Ligand Binding and Activation of G-Protein-Coupled Receptors. ACS APPLIED BIO MATERIALS 2024; 7:579-587. [PMID: 37058420 DOI: 10.1021/acsabm.2c01049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
G-protein coupled receptors (GPCRs) are eukaryotic integral membrane proteins that regulate signal transduction cascade pathways implicated in a variety of human diseases and are consequently of interest as drug targets. For this reason, it is of interest to investigate the way in which specific ligands bind and trigger conformational changes in the receptor during activation and how this in turn modulates intracellular signaling. In the present study, we investigate the way in which the ligand Prostaglandin E2 interacts with three GPCRs in the E-prostanoid family: EP1, EP2, and EP3. We examine information transfer pathways based on long-time scale molecular dynamics simulations using transfer entropy and betweenness centrality to measure the physical transfer of information among residues in the system. We monitor specific residues involved in binding to the ligand and investigate how the information transfer behavior of these residues changes upon ligand binding. Our results provide key insights that enable a deeper understanding of EP activation and signal transduction functioning pathways at the molecular level, as well as enabling us to make some predictions about the activation pathway for the EP1 receptor, for which little structural information is currently available. Our results should advance ongoing efforts in the development of potential therapeutics targeting these receptors.
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Affiliation(s)
- Nam P Vu
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Luke Ali
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
| | - Theresa L Chua
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Daniel A Barr
- Department of Chemistry, University of Mary, Bismarck, North Dakota 58504, United States
| | - Heidi P Hendrickson
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Dhara J Trivedi
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
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12
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Wang JJ, Jin S, Zhang H, Xu Y, Hu W, Jiang Y, Chen C, Wang DW, Xu HE, Wu C. Molecular recognition and activation of the prostacyclin receptor by anti-pulmonary arterial hypertension drugs. SCIENCE ADVANCES 2024; 10:eadk5184. [PMID: 38335293 PMCID: PMC10857463 DOI: 10.1126/sciadv.adk5184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 01/10/2024] [Indexed: 02/12/2024]
Abstract
The prostacyclin (PGI2) receptor (IP) is a Gs-coupled receptor associated with blood pressure regulation, allergy, and inflammatory response. It is a main therapeutic target for pulmonary arterial hypertension (PAH) and several other diseases. Here we report cryo-electron microscopy (cryo-EM) structures of the human IP-Gs complex bound with two anti-PAH drugs, treprostinil and MRE-269 (active form of selexipag), at global resolutions of 2.56 and 2.41 angstrom, respectively. These structures revealed distinct features governing IP ligand binding, receptor activation, and G protein coupling. Moreover, comparison of the activated IP structures uncovered the mechanism and key residues that determine the superior selectivity of MRE-269 over treprostinil. Combined with molecular docking and functional studies, our structures provide insight into agonist selectivity, ligand recognition, receptor activation, and G protein coupling. Our results provide a structural template for further improving IP-targeting drugs to reduce off-target activation of prostanoid receptors and adverse effects.
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Affiliation(s)
- James Jiqi Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Sanshan Jin
- Lingang laboratory, Shanghai 200031, China
- School of Life Science and Technology, ShanghaiTech University, 201210 Shanghai, China
| | - Heng Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Youwei Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Hu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yi Jiang
- Lingang laboratory, Shanghai 200031, China
- School of Life Science and Technology, ShanghaiTech University, 201210 Shanghai, China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - H. Eric Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Life Science and Technology, ShanghaiTech University, 201210 Shanghai, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Canrong Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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13
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Li R, Qian Y, Wang J, Han Z, Ye S, Wu S, Qiao A. Structure of human GPR119-G s complex binding APD597 and characterization of GPR119 binding agonists. Front Pharmacol 2024; 15:1310231. [PMID: 38288442 PMCID: PMC10823026 DOI: 10.3389/fphar.2024.1310231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
The rhodopsin-like receptor GPR119 plays a crucial role in glucose homeostasis and is an emerging target for the treatment of type 2 diabetes mellitus. In this study, we analyzed the structure of GPR119 with the agonist APD597 bound and in complex with the downstream G protein trimer by single particle cryo-electron microscopy (cryo-EM). Structural comparison in combination with function assay revealed the conservative and specific effects of different kinds of GPR119 agonists. The activation mechanism of GPR119 was analyzed by comparing the conformational changes between the inactive and active states. The interaction between APD597 derivatives and synthetic agonists with GPR119 was analyzed by molecular docking technique, and the necessary structural framework was obtained. The above conclusions can provide structural and theoretical basis for the development of therapeutic drugs for type 2 diabetes mellitus.
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Affiliation(s)
- Ruixue Li
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Yuxia Qian
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Jiening Wang
- School of Life Sciences, Hubei University, Wuhan, Hubei, China
| | - Zhen Han
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Sheng Ye
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Shan Wu
- School of Life Sciences, Hubei University, Wuhan, Hubei, China
| | - Anna Qiao
- School of Life Sciences, Tianjin University, Tianjin, China
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14
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Duan J, Zhao Q, He Z, Tang S, Duan J, Xing W. Current understanding of macrophages in intracranial aneurysm: relevant etiological manifestations, signaling modulation and therapeutic strategies. Front Immunol 2024; 14:1320098. [PMID: 38259443 PMCID: PMC10800944 DOI: 10.3389/fimmu.2023.1320098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Macrophages activation and inflammatory response play crucial roles in intracranial aneurysm (IA) formation and progression. The outcome of ruptured IA is considerably poor, and the mechanisms that trigger IA progression and rupture remain to be clarified, thereby developing effective therapy to prevent subarachnoid hemorrhage (SAH) become difficult. Recently, climbing evidences have been expanding our understanding of the macrophages relevant IA pathogenesis, such as immune cells population, inflammatory activation, intra-/inter-cellular signaling transductions and drug administration responses. Crosstalk between macrophages disorder, inflammation and cellular signaling transduction aggravates the devastating consequences of IA. Illustrating the pros and cons mechanisms of macrophages in IA progression are expected to achieve more efficient treatment interventions. In this review, we summarized the current advanced knowledge of macrophages activation, infiltration, polarization and inflammatory responses in IA occurrence and development, as well as the most relevant NF-κB, signal transducer and activator of transcription 1 (STAT1) and Toll-Like Receptor 4 (TLR4) regulatory signaling modulation. The understanding of macrophages regulatory mechanisms is important for IA patients' clinical outcomes. Gaining insight into the macrophages regulation potentially contributes to more precise IA interventions and will also greatly facilitate the development of novel medical therapy.
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Affiliation(s)
- Jian Duan
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Qijie Zhao
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zeyuan He
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Shuang Tang
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Jia Duan
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Wenli Xing
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
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15
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Lv X, Gao K, Nie J, Zhang X, Zhang S, Ren Y, Sun X, Li Q, Huang J, Liu L, Zhang X, Zhang W, Liu X. Structures of human prostaglandin F 2α receptor reveal the mechanism of ligand and G protein selectivity. Nat Commun 2023; 14:8136. [PMID: 38065938 PMCID: PMC10709307 DOI: 10.1038/s41467-023-43922-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Prostaglandins and their receptors regulate various physiological processes. Carboprost, an analog of prostaglandin F2α and an agonist for the prostaglandin F2-alpha receptor (FP receptor), is clinically used to treat postpartum hemorrhage (PPH). However, off-target activation of closely related receptors such as the prostaglandin E receptor subtype EP3 (EP3 receptor) by carboprost results in side effects and limits the clinical application. Meanwhile, the FP receptor selective agonist latanoprost is not suitable to treat PPH due to its poor solubility and fast clearance. Here, we present two cryo-EM structures of the FP receptor bound to carboprost and latanoprost-FA (the free acid form of latanoprost) at 2.7 Å and 3.2 Å resolution, respectively. The structures reveal the molecular mechanism of FP receptor selectivity for both endogenous prostaglandins and clinical drugs, as well as the molecular mechanism of G protein coupling preference by the prostaglandin receptors. The structural information may guide the development of better prostaglandin drugs.
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Affiliation(s)
- Xiuqing Lv
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Kaixuan Gao
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Jia Nie
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Xin Zhang
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Shuhao Zhang
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Yinhang Ren
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Xiaoou Sun
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Qi Li
- Reproductive Medicine Center, Xiangya Hospital Central South University, Changsha, China
| | - Jingrui Huang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Lijuan Liu
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Xiaowen Zhang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China.
- Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China.
| | - Xiangyu Liu
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China.
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China.
- Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing, China.
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16
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Gahbauer S, DeLeon C, Braz JM, Craik V, Kang HJ, Wan X, Huang XP, Billesbølle CB, Liu Y, Che T, Deshpande I, Jewell M, Fink EA, Kondratov IS, Moroz YS, Irwin JJ, Basbaum AI, Roth BL, Shoichet BK. Docking for EP4R antagonists active against inflammatory pain. Nat Commun 2023; 14:8067. [PMID: 38057319 PMCID: PMC10700596 DOI: 10.1038/s41467-023-43506-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 11/12/2023] [Indexed: 12/08/2023] Open
Abstract
The lipid prostaglandin E2 (PGE2) mediates inflammatory pain by activating G protein-coupled receptors, including the prostaglandin E2 receptor 4 (EP4R). Nonsteroidal anti-inflammatory drugs (NSAIDs) reduce nociception by inhibiting prostaglandin synthesis, however, the disruption of upstream prostanoid biosynthesis can lead to pleiotropic effects including gastrointestinal bleeding and cardiac complications. In contrast, by acting downstream, EP4R antagonists may act specifically as anti-inflammatory agents and, to date, no selective EP4R antagonists have been approved for human use. In this work, seeking to diversify EP4R antagonist scaffolds, we computationally dock over 400 million compounds against an EP4R crystal structure and experimentally validate 71 highly ranked, de novo synthesized molecules. Further, we show how structure-based optimization of initial docking hits identifies a potent and selective antagonist with 16 nanomolar potency. Finally, we demonstrate favorable pharmacokinetics for the discovered compound as well as anti-allodynic and anti-inflammatory activity in several preclinical pain models in mice.
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Affiliation(s)
- Stefan Gahbauer
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Chelsea DeLeon
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA
| | - Joao M Braz
- Department of Anatomy, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Veronica Craik
- Department of Anatomy, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Hye Jin Kang
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Xiaobo Wan
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Xi-Ping Huang
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA
| | - Christian B Billesbølle
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Yongfeng Liu
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA
| | - Tao Che
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA
- Center of Clinical Pharmacology, Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Ishan Deshpande
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Madison Jewell
- Department of Anatomy, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Elissa A Fink
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Ivan S Kondratov
- Enamine Ltd., Kyiv, Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Yurii S Moroz
- Chemspace LLC, Kyiv, Ukraine
- National Taras Shevchenko University of Kyiv, Kyiv, Ukraine
| | - John J Irwin
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Allan I Basbaum
- Department of Anatomy, University of California San Francisco, San Francisco, CA, 94158, USA.
| | - Bryan L Roth
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA.
- National Institute of Mental Health Psychoactive Drug Screening Program, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27514, USA.
- Division of Chemical Biology and Medicinal Chemistry, University of North Carolina at Chapel Hill Eshelman School of Pharmacy, Chapel Hill, NC, 27514, USA.
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA.
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17
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Nie Y, Qiu Z, Chen S, Chen Z, Song X, Ma Y, Huang N, Cyster JG, Zheng S. Specific binding of GPR174 by endogenous lysophosphatidylserine leads to high constitutive G s signaling. Nat Commun 2023; 14:5901. [PMID: 37737235 PMCID: PMC10516915 DOI: 10.1038/s41467-023-41654-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 09/13/2023] [Indexed: 09/23/2023] Open
Abstract
Many orphan G protein-coupled receptors (GPCRs) remain understudied because their endogenous ligands are unknown. Here, we show that a group of class A/rhodopsin-like orphan GPCRs including GPR61, GPR161 and GPR174 increase the cAMP level similarly to fully activated D1 dopamine receptor (D1R). We report cryo-electron microscopy structures of the GPR61‒Gs, GPR161‒Gs and GPR174‒Gs complexes without any exogenous ligands. The GPR174 structure reveals that endogenous lysophosphatidylserine (lysoPS) is copurified. While GPR174 fails to respond to exogenous lysoPS, likely owing to its maximal activation by the endogenous ligand, GPR174 mutants with lower ligand binding affinities can be specifically activated by lysoPS but not other lipids, in a dose-dependent manner. Moreover, GPR174 adopts a non-canonical Gs coupling mode. The structures of GPR161 and GPR61 reveal that the second extracellular loop (ECL2) penetrates into the orthosteric pocket, possibly contributing to constitutive activity. Our work definitively confirms lysoPS as an endogenous GPR174 ligand and suggests that high constitutive activity of some orphan GPCRs could be accounted for by their having naturally abundant ligands.
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Affiliation(s)
- Yingying Nie
- College of Life Sciences, Beijing Normal University, 100875, Beijing, China
- National Institute of Biological Sciences, 102206, Beijing, China
| | - Zeming Qiu
- National Institute of Biological Sciences, 102206, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, 100084, Beijing, China
| | - Sijia Chen
- National Institute of Biological Sciences, 102206, Beijing, China
| | - Zhao Chen
- National Institute of Biological Sciences, 102206, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, 100084, Beijing, China
| | - Xiaocui Song
- National Institute of Biological Sciences, 102206, Beijing, China
| | - Yan Ma
- National Institute of Biological Sciences, 102206, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, 100084, Beijing, China
| | - Niu Huang
- National Institute of Biological Sciences, 102206, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, 100084, Beijing, China
| | - Jason G Cyster
- HHMI, University of California, San Francisco, CA, 94143, USA
- Department of Microbiology and Immunology, University of California, San Francisco, CA, 94143, USA
| | - Sanduo Zheng
- College of Life Sciences, Beijing Normal University, 100875, Beijing, China.
- National Institute of Biological Sciences, 102206, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, 100084, Beijing, China.
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18
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Zhang X, Wang Y, Supekar S, Cao X, Zhou J, Dang J, Chen S, Jenkins L, Marsango S, Li X, Liu G, Milligan G, Feng M, Fan H, Gong W, Zhang C. Pro-phagocytic function and structural basis of GPR84 signaling. Nat Commun 2023; 14:5706. [PMID: 37709767 PMCID: PMC10502086 DOI: 10.1038/s41467-023-41201-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/26/2023] [Indexed: 09/16/2023] Open
Abstract
GPR84 is a unique orphan G protein-coupled receptor (GPCR) that can be activated by endogenous medium-chain fatty acids (MCFAs). The signaling of GPR84 is largely pro-inflammatory, which can augment inflammatory response, and GPR84 also functions as a pro-phagocytic receptor to enhance phagocytic activities of macrophages. In this study, we show that the activation of GPR84 by the synthetic agonist 6-OAU can synergize with the blockade of CD47 on cancer cells to induce phagocytosis of cancer cells by macrophages. We also determine a high-resolution structure of the GPR84-Gi signaling complex with 6-OAU. This structure reveals an occluded binding pocket for 6-OAU, the molecular basis of receptor activation involving non-conserved structural motifs of GPR84, and an unusual Gi-coupling interface. Together with computational docking and simulations studies, this structure also suggests a mechanism for the high selectivity of GPR84 for MCFAs and a potential routes of ligand binding and dissociation. These results provide a framework for understanding GPR84 signaling and developing new drugs targeting GPR84.
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Affiliation(s)
- Xuan Zhang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Yujing Wang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Shreyas Supekar
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore, 138671, Singapore
| | - Xu Cao
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010, USA
| | - Jingkai Zhou
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010, USA
| | - Jessica Dang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010, USA
| | - Siqi Chen
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010, USA
| | - Laura Jenkins
- Centre for Translational Pharmacology, School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK
| | - Sara Marsango
- Centre for Translational Pharmacology, School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK
| | - Xiu Li
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Guibing Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Graeme Milligan
- Centre for Translational Pharmacology, School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK.
| | - Mingye Feng
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010, USA.
| | - Hao Fan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore, 138671, Singapore.
- Synthetic Biology Translational Research Program and Department of Biochemistry, School of Medicine, National University of Singapore, Singapore, Singapore.
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore.
| | - Weimin Gong
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
| | - Cheng Zhang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
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19
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Yin H, Inoue A, Ma Z, Zhu X, Xia R, Xu Z, Wang N, Duan Y, Zhang A, Guo C, He Y. Structural basis of omega-3 fatty acid receptor FFAR4 activation and G protein coupling selectivity. Cell Res 2023; 33:644-647. [PMID: 37286793 PMCID: PMC10397242 DOI: 10.1038/s41422-023-00835-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 05/26/2023] [Indexed: 06/09/2023] Open
Affiliation(s)
- Han Yin
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan
| | - Zhengxiong Ma
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Xinyan Zhu
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Ruixue Xia
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Zhenmei Xu
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Na Wang
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Yaning Duan
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Anqi Zhang
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Changyou Guo
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Yuanzheng He
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China.
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20
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Huang SM, Xiong MY, Liu L, Mu J, Wang MW, Jia YL, Cai K, Tie L, Zhang C, Cao S, Wen X, Wang JL, Guo SC, Li Y, Qu CX, He QT, Cai BY, Xue C, Gan S, Xie Y, Cong X, Yang Z, Kong W, Li S, Li Z, Xiao P, Yang F, Yu X, Guan YF, Zhang X, Liu Z, Yang BX, Du Y, Sun JP. Single hormone or synthetic agonist induces G s/G i coupling selectivity of EP receptors via distinct binding modes and propagating paths. Proc Natl Acad Sci U S A 2023; 120:e2216329120. [PMID: 37478163 PMCID: PMC10372679 DOI: 10.1073/pnas.2216329120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/18/2023] [Indexed: 07/23/2023] Open
Abstract
To accomplish concerted physiological reactions, nature has diversified functions of a single hormone at at least two primary levels: 1) Different receptors recognize the same hormone, and 2) different cellular effectors couple to the same hormone-receptor pair [R.P. Xiao, Sci STKE 2001, re15 (2001); L. Hein, J. D. Altman, B.K. Kobilka, Nature 402, 181-184 (1999); Y. Daaka, L. M. Luttrell, R. J. Lefkowitz, Nature 390, 88-91 (1997)]. Not only these questions lie in the heart of hormone actions and receptor signaling but also dissecting mechanisms underlying these questions could offer therapeutic routes for refractory diseases, such as kidney injury (KI) or X-linked nephrogenic diabetes insipidus (NDI). Here, we identified that Gs-biased signaling, but not Gi activation downstream of EP4, showed beneficial effects for both KI and NDI treatments. Notably, by solving Cryo-electron microscope (cryo-EM) structures of EP3-Gi, EP4-Gs, and EP4-Gi in complex with endogenous prostaglandin E2 (PGE2)or two synthetic agonists and comparing with PGE2-EP2-Gs structures, we found that unique primary sequences of prostaglandin E2 receptor (EP) receptors and distinct conformational states of the EP4 ligand pocket govern the Gs/Gi transducer coupling selectivity through different structural propagation paths, especially via TM6 and TM7, to generate selective cytoplasmic structural features. In particular, the orientation of the PGE2 ω-chain and two distinct pockets encompassing agonist L902688 of EP4 were differentiated by their Gs/Gi coupling ability. Further, we identified common and distinct features of cytoplasmic side of EP receptors for Gs/Gi coupling and provide a structural basis for selective and biased agonist design of EP4 with therapeutic potential.
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Affiliation(s)
- Shen-Ming Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Meng-Yao Xiong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
- Department of Pharmacology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Lei Liu
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Jianqiang Mu
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong518055, China
| | - Ming-Wei Wang
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Ying-Li Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Kui Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Lu Tie
- Department of Pharmacology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Chao Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Sheng Cao
- School of Medicine, Kobilka Institute of Innovative Drug Discovery, Chinese University of Hong Kong, Shenzhen, Guangdong518172, China
| | - Xin Wen
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Jia-Le Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Sheng-Chao Guo
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, China
| | - Yu Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Chang-Xiu Qu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Qing-Tao He
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, China
| | - Bo-Yang Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Chenyang Xue
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong518055, China
| | - Shiyi Gan
- School of Medicine, Kobilka Institute of Innovative Drug Discovery, Chinese University of Hong Kong, Shenzhen, Guangdong518172, China
| | - Yihe Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Xin Cong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Zhao Yang
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Shuo Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Zijian Li
- Department of Cardiology, Institute of Vascular Medicine, Peking University Third Hospital, Research, Beijing100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing100191, P. R. China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Fan Yang
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, China
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, China
| | - You-Fei Guan
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian116044, China
| | - Xiaoyan Zhang
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian116044, China
| | - Zhongmin Liu
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong518055, China
| | - Bao-Xue Yang
- Department of Pharmacology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
| | - Yang Du
- School of Medicine, Kobilka Institute of Innovative Drug Discovery, Chinese University of Hong Kong, Shenzhen, Guangdong518172, China
| | - Jin-Peng Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing100191, China
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing100191, P. R. China
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, China
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21
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Hoppe N, Harrison S, Hwang SH, Chen Z, Karelina M, Deshpande I, Suomivuori CM, Palicharla VR, Berry SP, Tschaikner P, Regele D, Covey DF, Stefan E, Marks DS, Reiter J, Dror RO, Evers AS, Mukhopadhyay S, Manglik A. GPR161 structure uncovers the redundant role of sterol-regulated ciliary cAMP signaling in the Hedgehog pathway. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.23.540554. [PMID: 37292845 PMCID: PMC10245861 DOI: 10.1101/2023.05.23.540554] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The orphan G protein-coupled receptor (GPCR) GPR161 is enriched in primary cilia, where it plays a central role in suppressing Hedgehog signaling1. GPR161 mutations lead to developmental defects and cancers2,3,4. The fundamental basis of how GPR161 is activated, including potential endogenous activators and pathway-relevant signal transducers, remains unclear. To elucidate GPR161 function, we determined a cryogenic-electron microscopy structure of active GPR161 bound to the heterotrimeric G protein complex Gs. This structure revealed an extracellular loop 2 that occupies the canonical GPCR orthosteric ligand pocket. Furthermore, we identify a sterol that binds to a conserved extrahelical site adjacent to transmembrane helices 6 and 7 and stabilizes a GPR161 conformation required for Gs coupling. Mutations that prevent sterol binding to GPR161 suppress cAMP pathway activation. Surprisingly, these mutants retain the ability to suppress GLI2 transcription factor accumulation in cilia, a key function of ciliary GPR161 in Hedgehog pathway suppression. By contrast, a protein kinase A-binding site in the GPR161 C-terminus is critical in suppressing GLI2 ciliary accumulation. Our work highlights how unique structural features of GPR161 interface with the Hedgehog pathway and sets a foundation to understand the broader role of GPR161 function in other signaling pathways.
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Affiliation(s)
- Nicholas Hoppe
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
- Biophysics Graduate Program, University of California, San Francisco, CA, USA
| | - Simone Harrison
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
- Biophysics Graduate Program, University of California, San Francisco, CA, USA
| | - Sun-Hee Hwang
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ziwei Chen
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Taylor Institute for Innovative Psychiatric Research, St. Louis, MO 63110, USA
| | - Masha Karelina
- Biophysics Program, Stanford University, Stanford, CA 94305, USA
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Ishan Deshpande
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
| | - Carl-Mikael Suomivuori
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Vivek R. Palicharla
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Samuel P. Berry
- Department of Systems Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Philipp Tschaikner
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck 6020, Austria
- Institute of Biochemistry and Center for Molecular Biosciences, University of Innsbruck; Tyrolean Cancer Research Institute (TKFI), Innsbruck 6020, Austria
| | - Dominik Regele
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck 6020, Austria
| | - Douglas F. Covey
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Taylor Institute for Innovative Psychiatric Research, St. Louis, MO 63110, USA
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Eduard Stefan
- Institute of Molecular Biology and Center for Molecular Biosciences, University of Innsbruck, Innsbruck 6020, Austria
- Institute of Biochemistry and Center for Molecular Biosciences, University of Innsbruck; Tyrolean Cancer Research Institute (TKFI), Innsbruck 6020, Austria
| | - Debora S. Marks
- Department of Systems Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Jeremy Reiter
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, California 94158
| | - Ron O. Dror
- Biophysics Program, Stanford University, Stanford, CA 94305, USA
- Department of Computer Science, Stanford University, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Alex S. Evers
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Taylor Institute for Innovative Psychiatric Research, St. Louis, MO 63110, USA
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Saikat Mukhopadhyay
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Aashish Manglik
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
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22
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Wu C, Xu Y, He Q, Li D, Duan J, Li C, You C, Chen H, Fan W, Jiang Y, Eric Xu H. Ligand-induced activation and G protein coupling of prostaglandin F 2α receptor. Nat Commun 2023; 14:2668. [PMID: 37160891 PMCID: PMC10169810 DOI: 10.1038/s41467-023-38411-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/02/2023] [Indexed: 05/11/2023] Open
Abstract
Prostaglandin F2α (PGF2α), an endogenous arachidonic acid metabolite, regulates diverse physiological functions in many tissues and cell types through binding and activation of a G-protein-coupled receptor (GPCR), the PGF2α receptor (FP), which also is the primary therapeutic target for glaucoma and several other diseases. Here, we report cryo-electron microscopy (cryo-EM) structures of the human FP bound to endogenous ligand PGF2α and anti-glaucoma drugs LTPA and TFPA at global resolutions of 2.67 Å, 2.78 Å, and 3.14 Å. These structures reveal distinct features of FP within the lipid receptor family in terms of ligand binding selectivity, its receptor activation, and G protein coupling mechanisms, including activation in the absence of canonical PIF and ERY motifs and Gq coupling through direct interactions with receptor transmembrane helix 1 and intracellular loop 1. Together with mutagenesis and functional studies, our structures reveal mechanisms of ligand recognition, receptor activation, and G protein coupling by FP, which could facilitate rational design of FP-targeting drugs.
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Affiliation(s)
- Canrong Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
| | - Youwei Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Qian He
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Dianrong Li
- Sironax (Beijing) Co., Ltd., Beijing, 102206, China
| | - Jia Duan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Changyao Li
- Lingang Laboratory, Shanghai, 200031, China
- School of Life Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Chongzhao You
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Han Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, 350108, China
| | - Weiliang Fan
- Sironax (Beijing) Co., Ltd., Beijing, 102206, China
| | - Yi Jiang
- Lingang Laboratory, Shanghai, 200031, China
- School of Life Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - H Eric Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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23
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Liang J, Inoue A, Ikuta T, Xia R, Wang N, Kawakami K, Xu Z, Qian Y, Zhu X, Zhang A, Guo C, Huang Z, He Y. Structural basis of lysophosphatidylserine receptor GPR174 ligand recognition and activation. Nat Commun 2023; 14:1012. [PMID: 36823105 PMCID: PMC9950150 DOI: 10.1038/s41467-023-36575-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 02/07/2023] [Indexed: 02/25/2023] Open
Abstract
Lysophosphatidylserine (LysoPS) is a lipid mediator that induces multiple cellular responses through binding to GPR174. Here, we present the cryo-electron microscopy (cryo-EM) structure of LysoPS-bound human GPR174 in complex with Gs protein. The structure reveals a ligand recognition mode, including the negatively charged head group of LysoPS forms extensive polar interactions with surrounding key residues of the ligand binding pocket, and the L-serine moiety buries deeply into a positive charged cavity in the pocket. In addition, the structure unveils a partially open pocket on transmembrane domain helix (TM) 4 and 5 for a lateral entry of ligand. Finally, the structure reveals a Gs engaging mode featured by a deep insertion of a helix 5 (αH5) and extensive polar interactions between receptor and αH5. Taken together, the information revealed by our structural study provides a framework for understanding LysoPS signaling and a rational basis for designing LysoPS receptor-targeting drugs.
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Affiliation(s)
- Jiale Liang
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Miyagi, Japan.
| | - Tatsuya Ikuta
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Miyagi, Japan
| | - Ruixue Xia
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Na Wang
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Kouki Kawakami
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Miyagi, Japan
| | - Zhenmei Xu
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Yu Qian
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Xinyan Zhu
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China
| | - Anqi Zhang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Changyou Guo
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Zhiwei Huang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Yuanzheng He
- Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, 150001, Harbin, China.
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24
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Suno R, Sugita Y, Morimoto K, Takazaki H, Tsujimoto H, Hirose M, Suno-Ikeda C, Nomura N, Hino T, Inoue A, Iwasaki K, Kato T, Iwata S, Kobayashi T. Structural insights into the G protein selectivity revealed by the human EP3-G i signaling complex. Cell Rep 2022; 40:111323. [PMID: 36103815 DOI: 10.1016/j.celrep.2022.111323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/18/2022] [Accepted: 08/17/2022] [Indexed: 11/03/2022] Open
Abstract
Prostaglandin receptors have been implicated in a wide range of functions, including inflammation, immune response, reproduction, and cancer. Our group has previously determined the crystal structure of the active-like EP3 bound to its endogenous agonist, prostaglandin E2. Here, we present the single-particle cryoelectron microscopy (cryo-EM) structure of the human EP3-Gi signaling complex at a resolution of 3.4 Å. The structure reveals the binding mode of Gi to EP3 and the structural changes induced in EP3 by Gi binding. In addition, we compare the structure of the EP3-Gi complex with other subtypes of prostaglandin receptors (EP2 and EP4) bound to Gs that have been previously reported and examine the differences in amino acid composition at the receptor-G protein interface. Mutational analysis reveals that the selectivity of the G protein depends on specific amino acid residues in the second intracellular loop and TM5.
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Affiliation(s)
- Ryoji Suno
- Department of Medical Chemistry, Kansai Medical University, Hirakata 573-1010, Japan.
| | - Yukihiko Sugita
- Institute for Protein Research, Osaka University, Suita 565-0871, Japan; Hakubi Center for Advanced Research, Kyoto University, Kyoto 606-8501, Japan; Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Kazushi Morimoto
- Physical Chemistry for Life Science Laboratory, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroko Takazaki
- Institute for Protein Research, Osaka University, Suita 565-0871, Japan
| | - Hirokazu Tsujimoto
- Department of Cell Biology and Medical Chemistry, Graduate School of Medicine, Kyoto University, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Mika Hirose
- Institute for Protein Research, Osaka University, Suita 565-0871, Japan
| | - Chiyo Suno-Ikeda
- Department of Medical Chemistry, Kansai Medical University, Hirakata 573-1010, Japan
| | - Norimichi Nomura
- Department of Cell Biology and Medical Chemistry, Graduate School of Medicine, Kyoto University, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Tomoya Hino
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, Tottori, Japan
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-Ku, Sendai, Miyagi 980-8578, Japan
| | - Kenji Iwasaki
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Japan
| | - Takayuki Kato
- Institute for Protein Research, Osaka University, Suita 565-0871, Japan
| | - So Iwata
- Department of Cell Biology and Medical Chemistry, Graduate School of Medicine, Kyoto University, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Takuya Kobayashi
- Department of Medical Chemistry, Kansai Medical University, Hirakata 573-1010, Japan; Japan Agency for Medical Research and Development (AMED), Core Research for Evolutional Science and Technology (CREST), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan.
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25
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Bassani D, Pavan M, Federico S, Spalluto G, Sturlese M, Moro S. The Multifaceted Role of GPCRs in Amyotrophic Lateral Sclerosis: A New Therapeutic Perspective? Int J Mol Sci 2022; 23:4504. [PMID: 35562894 PMCID: PMC9106011 DOI: 10.3390/ijms23094504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 02/05/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a degenerating disease involving the motor neurons, which causes a progressive loss of movement ability, usually leading to death within 2 to 5 years from the diagnosis. Much effort has been put into research for an effective therapy for its eradication, but still, no cure is available. The only two drugs approved for this pathology, Riluzole and Edaravone, are onlyable to slow down the inevitable disease progression. As assessed in the literature, drug targets such as protein kinases have already been extensively examined as potential drug targets for ALS, with some molecules already in clinical trials. Here, we focus on the involvement of another very important and studied class of biological entities, G protein-coupled receptors (GPCRs), in the onset and progression of ALS. This workaimsto give an overview of what has been already discovered on the topic, providing useful information and insights that can be used by scientists all around the world who are putting efforts into the fight against this very important neurodegenerating disease.
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Affiliation(s)
- Davide Bassani
- Molecular Modeling Section (MMS), Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (D.B.); (M.P.); (M.S.)
| | - Matteo Pavan
- Molecular Modeling Section (MMS), Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (D.B.); (M.P.); (M.S.)
| | - Stephanie Federico
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy; (S.F.); (G.S.)
| | - Giampiero Spalluto
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy; (S.F.); (G.S.)
| | - Mattia Sturlese
- Molecular Modeling Section (MMS), Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (D.B.); (M.P.); (M.S.)
| | - Stefano Moro
- Molecular Modeling Section (MMS), Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (D.B.); (M.P.); (M.S.)
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26
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Krishna Deepak RNV, Verma RK, Hartono YD, Yew WS, Fan H. Recent Advances in Structure, Function, and Pharmacology of Class A Lipid GPCRs: Opportunities and Challenges for Drug Discovery. Pharmaceuticals (Basel) 2021; 15:12. [PMID: 35056070 PMCID: PMC8779880 DOI: 10.3390/ph15010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 01/01/2023] Open
Abstract
Great progress has been made over the past decade in understanding the structural, functional, and pharmacological diversity of lipid GPCRs. From the first determination of the crystal structure of bovine rhodopsin in 2000, much progress has been made in the field of GPCR structural biology. The extraordinary progress in structural biology and pharmacology of GPCRs, coupled with rapid advances in computational approaches to study receptor dynamics and receptor-ligand interactions, has broadened our comprehension of the structural and functional facets of the receptor family members and has helped usher in a modern age of structure-based drug design and development. First, we provide a primer on lipid mediators and lipid GPCRs and their role in physiology and diseases as well as their value as drug targets. Second, we summarize the current advancements in the understanding of structural features of lipid GPCRs, such as the structural variation of their extracellular domains, diversity of their orthosteric and allosteric ligand binding sites, and molecular mechanisms of ligand binding. Third, we close by collating the emerging paradigms and opportunities in targeting lipid GPCRs, including a brief discussion on current strategies, challenges, and the future outlook.
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Affiliation(s)
- R. N. V. Krishna Deepak
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, Matrix #07-01, Singapore 138671, Singapore; (R.K.V.); (Y.D.H.)
| | - Ravi Kumar Verma
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, Matrix #07-01, Singapore 138671, Singapore; (R.K.V.); (Y.D.H.)
| | - Yossa Dwi Hartono
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, Matrix #07-01, Singapore 138671, Singapore; (R.K.V.); (Y.D.H.)
- Synthetic Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 14 Medical Drive, Singapore 117599, Singapore;
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore 117597, Singapore
| | - Wen Shan Yew
- Synthetic Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 14 Medical Drive, Singapore 117599, Singapore;
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore 117597, Singapore
| | - Hao Fan
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, Matrix #07-01, Singapore 138671, Singapore; (R.K.V.); (Y.D.H.)
- Synthetic Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 14 Medical Drive, Singapore 117599, Singapore;
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27
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Wu X, Yang X, Liang Q, Xue X, Huang J, Wang J, Xu Y, Tong R, Liu M, Zhou Q, Shi J. Drugs for the treatment of glaucoma: Targets, structure-activity relationships and clinical research. Eur J Med Chem 2021; 226:113842. [PMID: 34536672 DOI: 10.1016/j.ejmech.2021.113842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 01/06/2023]
Abstract
Glaucoma is the third leading cause of blindness and impairment of vision worldwide, after refractive errors and cataracts. According to the survey, the number of people with glaucoma is more than 76 million, with projections increasing to 112 million by 2040. With the coming of an aging society, the number of people suffering from glaucoma will increase day by day. Glaucoma is a heterogeneous disease characterized by damage to the head of the optic nerve and visual field. High intraocular pressure is a major risk and cause of glaucoma optic neuropathy. Therefore, drug lowering intraocular pressure therapy is still the first-line therapy in clinical practice. Here, the targets, structure-activity relationship, and clinical progress of drugs for the treatment of glaucoma are reviewed.
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Affiliation(s)
- Xianbo Wu
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu Sichuan, 610041, China
| | - Xinwei Yang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu Sichuan, 610041, China
| | - Qi Liang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Xiali Xue
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu Sichuan, 610041, China
| | - Jianli Huang
- Guizhou University of Traditional Chinese Medicine, Guiyang Guizhou, 550002, China
| | - Jie Wang
- Guizhou University of Traditional Chinese Medicine, Guiyang Guizhou, 550002, China
| | - Yihua Xu
- Chengdu University of Traditional Chinese Medicine, Chengdu Sichuan, 611137, China
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu Sichuan, 610072, China
| | - Maoyu Liu
- Chengdu University of Traditional Chinese Medicine, Chengdu Sichuan, 611137, China.
| | - Qiaodan Zhou
- Ultrasonography Lab, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu Sichuan, 610072, China.
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu Sichuan, 610072, China.
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28
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Sluter MN, Hou R, Li L, Yasmen N, Yu Y, Liu J, Jiang J. EP2 Antagonists (2011-2021): A Decade's Journey from Discovery to Therapeutics. J Med Chem 2021; 64:11816-11836. [PMID: 34352171 PMCID: PMC8455147 DOI: 10.1021/acs.jmedchem.1c00816] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In the wake of health disasters associated with the chronic use of cyclooxygenase-2 (COX-2) inhibitor drugs, it has been widely proposed that modulation of downstream prostanoid synthases or receptors might provide more specificity than simply shutting down the entire COX cascade for anti-inflammatory benefits. The pathogenic actions of COX-2 have long been thought attributable to the prostaglandin E2 (PGE2) signaling through its Gαs-coupled EP2 receptor subtype; however, the truly selective EP2 antagonists did not emerge until 2011. These small molecules provide game-changing tools to better understand the EP2 receptor in inflammation-associated conditions. Their applications in preclinical models also reshape our knowledge of PGE2/EP2 signaling as a node of inflammation in health and disease. As we celebrate the 10-year anniversary of this breakthrough, the exploration of their potential as drug candidates for next-generation anti-inflammatory therapies has just begun. The first decade of EP2 antagonists passes, while their future looks brighter than ever.
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Affiliation(s)
- Madison N Sluter
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Ruida Hou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Lexiao Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Nelufar Yasmen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Ying Yu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Jiawang Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
- Medicinal Chemistry Core, Office of Research, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
| | - Jianxiong Jiang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee 38163, United States
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29
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Molecular basis for lipid recognition by the prostaglandin D 2 receptor CRTH2. Proc Natl Acad Sci U S A 2021; 118:2102813118. [PMID: 34341104 DOI: 10.1073/pnas.2102813118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Prostaglandin D2 (PGD2) signals through the G protein-coupled receptor (GPCR) CRTH2 to mediate various inflammatory responses. CRTH2 is the only member of the prostanoid receptor family that is phylogenetically distant from others, implying a nonconserved mechanism of lipid action on CRTH2. Here, we report a crystal structure of human CRTH2 bound to a PGD2 derivative, 15R-methyl-PGD2 (15mPGD2), by serial femtosecond crystallography. The structure revealed a "polar group in"-binding mode of 15mPGD2 contrasting the "polar group out"-binding mode of PGE2 in its receptor EP3. Structural comparison analysis suggested that these two lipid-binding modes, associated with distinct charge distributions of ligand-binding pockets, may apply to other lipid GPCRs. Molecular dynamics simulations together with mutagenesis studies also identified charged residues at the ligand entry port that function to capture lipid ligands of CRTH2 from the lipid bilayer. Together, our studies suggest critical roles of charge environment in lipid recognition by GPCRs.
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