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Ramdas V, Talwar R, Banerjee M, Joshi AA, Das AK, Walke DS, Borhade P, Dhayagude U, Loriya R, Gote G, Bommakanti A, Sivaram A, Agarwal G, Goswami A, Nigade P, Mehta M, Patil V, Modi D, Kumar H, Mallurwar S, Dash A, Modi F, Kuldharan S, Srivastava P, Singh M, Narasimham L, Gundu J, Sharma S, Kamboj RK, Palle VP. Discovery and Characterization of Potent Pan-Genotypic HCV NS5A Inhibitors Containing Novel Tricyclic Central Core Leading to Clinical Candidate. J Med Chem 2019; 62:10563-10582. [PMID: 31710479 DOI: 10.1021/acs.jmedchem.9b01562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The identification of a novel class of potent pan-genotypic NS5A inhibitors with good pharmacokinetic profile suitable for potential use in treating HCV infections is disclosed here. The present series of compounds are with less complex tricyclic central core, identified through a systematic SAR study carried out on biphenyl moiety. The SAR outcome has confirmed the requirement of near planar and linear conformation of the molecule to achieve the best pan-genotypic activity. In addition, SAR with substituted imidazoles on improvement of antiviral activity is disclosed. The newly identified compounds 12, 16, 19-21 have shown desirable pharmacokinetic profiles with a favorable uptake of compounds in liver and maintained a significant concentration for up to 8 h in the liver. In addition, compounds 20 and 21 have shown superior pan-genotypic anti-HCV activity compared to ledipasvir and daclatasvir. Additional characterization and preliminary safety assessment resulted in the identification of compound 20 as a potential clinical candidate.
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Affiliation(s)
- Vidya Ramdas
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Rashmi Talwar
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Moloy Banerjee
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Advait Arun Joshi
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Amit Kumar Das
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Deepak Sahebrao Walke
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Prashant Borhade
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Usha Dhayagude
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Rajesh Loriya
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Ganesh Gote
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Apparao Bommakanti
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Aruna Sivaram
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Gautam Agarwal
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Arnab Goswami
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Prashant Nigade
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Maneesh Mehta
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Vinod Patil
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Dipak Modi
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Hemant Kumar
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Sadanand Mallurwar
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Amruta Dash
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Falguni Modi
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Sandip Kuldharan
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Pratima Srivastava
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Minakshi Singh
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Lakshmi Narasimham
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Jayasagar Gundu
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Sharad Sharma
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Rajender Kumar Kamboj
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
| | - Venkata P Palle
- Novel Drug Discovery & Development , Lupin Ltd. , Lupin Research Park, Survey No. 46 A/47 A, Village Nande, Taluka Mulshi , Pune 412115 , India
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Günther T, Tulipano G, Dournaud P, Bousquet C, Csaba Z, Kreienkamp HJ, Lupp A, Korbonits M, Castaño JP, Wester HJ, Culler M, Melmed S, Schulz S. International Union of Basic and Clinical Pharmacology. CV. Somatostatin Receptors: Structure, Function, Ligands, and New Nomenclature. Pharmacol Rev 2019; 70:763-835. [PMID: 30232095 PMCID: PMC6148080 DOI: 10.1124/pr.117.015388] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Somatostatin, also known as somatotropin-release inhibitory factor, is a cyclopeptide that exerts potent inhibitory actions on hormone secretion and neuronal excitability. Its physiologic functions are mediated by five G protein-coupled receptors (GPCRs) called somatostatin receptor (SST)1-5. These five receptors share common structural features and signaling mechanisms but differ in their cellular and subcellular localization and mode of regulation. SST2 and SST5 receptors have evolved as primary targets for pharmacological treatment of pituitary adenomas and neuroendocrine tumors. In addition, SST2 is a prototypical GPCR for the development of peptide-based radiopharmaceuticals for diagnostic and therapeutic interventions. This review article summarizes findings published in the last 25 years on the physiology, pharmacology, and clinical applications related to SSTs. We also discuss potential future developments and propose a new nomenclature.
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Affiliation(s)
- Thomas Günther
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Giovanni Tulipano
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Pascal Dournaud
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Corinne Bousquet
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Zsolt Csaba
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Hans-Jürgen Kreienkamp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Márta Korbonits
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Justo P Castaño
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Hans-Jürgen Wester
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Michael Culler
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Shlomo Melmed
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
| | - Stefan Schulz
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany (T.G., A.L., S.S.); Unit of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy (G.T.); PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Paris, France (P.D., Z.C.); Cancer Research Center of Toulouse, INSERM UMR 1037-University Toulouse III Paul Sabatier, Toulouse, France (C.B.); Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (H.-J.K.); Centre for Endocrinology, William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, United Kingdom (M.K.); Maimonides Institute for Biomedical Research of Cordoba, Córdoba, Spain (J.P.C.); Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain (J.P.C.); Reina Sofia University Hospital, Córdoba, Spain (J.P.C.); CIBER Fisiopatología de la Obesidad y Nutrición, Córdoba, Spain (J.P.C.); Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany (H.-J.W.); Culler Consulting LLC, Hopkinton, Massachusetts (M.C.); and Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California (S.M.)
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Dai J, Dan W, Schneider U, Wang J. β-Carboline alkaloid monomers and dimers: Occurrence, structural diversity, and biological activities. Eur J Med Chem 2018; 157:622-656. [DOI: 10.1016/j.ejmech.2018.08.027] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/26/2018] [Accepted: 08/10/2018] [Indexed: 01/21/2023]
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Farb TB, Adeva M, Beauchamp TJ, Cabrera O, Coates DA, Meredith TD, Droz BA, Efanov A, Ficorilli JV, Gackenheimer SL, Martinez-Grau MA, Molero V, Ruano G, Statnick MA, Suter TM, Syed SK, Toledo MA, Willard FS, Zhou X, Bokvist KB, Barrett DG. Regulation of Endogenous (Male) Rodent GLP-1 Secretion and Human Islet Insulin Secretion by Antagonism of Somatostatin Receptor 5. Endocrinology 2017; 158:3859-3873. [PMID: 28938487 DOI: 10.1210/en.2017-00639] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/06/2017] [Indexed: 12/25/2022]
Abstract
Incretin and insulin responses to nutrient loads are suppressed in persons with diabetes, resulting in decreased glycemic control. Agents including sulfonylureas and dipeptidyl peptidase-4 inhibitors (DPP4i) partially reverse these effects and provide therapeutic benefit; however, their modes of action limit efficacy. Because somatostatin (SST) has been shown to suppress insulin and glucagonlike peptide-1 (GLP-1) secretion through the Gi-coupled SST receptor 5 (SSTR5) isoform in vitro, antagonism of SSTR5 may improve glycemic control via intervention in both pathways. Here, we show that a potent and selective SSTR5 antagonist reverses the blunting effects of SST on insulin secretion from isolated human islets, and demonstrate that SSTR5 antagonism affords increased levels of systemic GLP-1 in vivo. Knocking out Sstr5 in mice provided a similar increase in systemic GLP-1 levels, which were not increased further by treatment with the antagonist. Treatment of mice with the SSTR5 antagonist in combination with a DPP4i resulted in increases in systemic GLP-1 levels that were more than additive and resulted in greater glycemic control compared with either agent alone. In isolated human islets, the SSTR5 antagonist completely reversed the inhibitory effect of exogenous SST-14 on insulin secretion. Taken together, these data suggest that SSTR5 antagonism should increase circulating GLP-1 levels and stimulate insulin secretion (directly and via GLP-1) in humans, improving glycemic control in patients with diabetes.
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Affiliation(s)
- Thomas B Farb
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Marta Adeva
- Centro de Investigacion Lilly, Eli Lilly and Company, 28108-Alcobendas, Madrid, Spain
| | - Thomas J Beauchamp
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Over Cabrera
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - David A Coates
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | | | - Brian A Droz
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Alexander Efanov
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - James V Ficorilli
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | | | - Maria A Martinez-Grau
- Centro de Investigacion Lilly, Eli Lilly and Company, 28108-Alcobendas, Madrid, Spain
| | - Victoriano Molero
- Centro de Investigacion Lilly, Eli Lilly and Company, 28108-Alcobendas, Madrid, Spain
| | - Gema Ruano
- Centro de Investigacion Lilly, Eli Lilly and Company, 28108-Alcobendas, Madrid, Spain
| | - Michael A Statnick
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Todd M Suter
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Samreen K Syed
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Miguel A Toledo
- Centro de Investigacion Lilly, Eli Lilly and Company, 28108-Alcobendas, Madrid, Spain
| | - Francis S Willard
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Xin Zhou
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - Krister B Bokvist
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - David G Barrett
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
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5
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SAR exploration at the C-3 position of tetrahydro-β-carboline sstr3 antagonists. Bioorg Med Chem Lett 2016; 26:1529-1535. [DOI: 10.1016/j.bmcl.2016.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/07/2016] [Accepted: 02/09/2016] [Indexed: 12/16/2022]
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6
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Lai Z, He S, Sherer EC, Wu Z, Yu Y, Ball R, Hong Q, Yang DX, Guo L, Li D, Tuang Q, Chicchi GG, Trusca D, Tsao KL, Zhou YP, Howard AD, Nargund RP, Hagmann WK. Discovery of substituted (4-phenyl-1H-imidazol-2-yl)methanamine as potent somatostatin receptor 3 agonists. Bioorg Med Chem Lett 2015. [DOI: 10.1016/j.bmcl.2015.06.087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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7
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Shah SK, He S, Guo L, Truong Q, Qi H, Du W, Lai Z, Liu J, Jian T, Hong Q, Dobbelaar P, Ye Z, Sherer E, Feng Z, Yu Y, Wong F, Samuel K, Madiera M, Karanam BV, Reddy VB, Mitelman S, Tong SX, Chicchi GG, Tsao KL, Trusca D, Feng Y, Wu M, Shao Q, Trujillo ME, Eiermann GJ, Li C, Pachanski M, Fernandez G, Nelson D, Bunting P, Morissette P, Volksdorf S, Kerr J, Zhang BB, Howard AD, Zhou YP, Pasternak A, Nargund RP, Hagmann WK. Discovery of MK-1421, a Potent, Selective sstr3 Antagonist, as a Development Candidate for Type 2 Diabetes. ACS Med Chem Lett 2015; 6:513-7. [PMID: 26005524 PMCID: PMC4434471 DOI: 10.1021/ml500514w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/18/2015] [Indexed: 01/25/2023] Open
Abstract
![]()
The imidazolyl-tetrahydro-β-carboline
class of sstr3 antagonists
have demonstrated efficacy in a murine model of glucose excursion
and may have potential as a treatment for type 2 diabetes. The first
candidate in this class caused unacceptable QTc interval prolongation
in oral, telemetrized cardiovascular (CV) dogs. Herein, we describe
our efforts to identify an acceptable candidate without CV effects.
These efforts resulted in the identification of (1R,3R)-3-(4-(5-fluoropyridin-2-yl)-1H-imidazol-2-yl)-1-(1-ethyl-pyrazol-4-yl)-1-(3-methyl-1,3,4-oxadiazol-3H-2-one-5-yl)-2,3,4,9-tetrahydro-1H-β-carboline
(17e, MK-1421).
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Guillermo Fernandez
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Donald Nelson
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Patricia Bunting
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Pierre Morissette
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Sylvia Volksdorf
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Janet Kerr
- Department
of Safety Assessment, Merck Research Laboratories, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
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8
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Therapeutic uses of somatostatin and its analogues: Current view and potential applications. Pharmacol Ther 2015; 152:98-110. [PMID: 25956467 DOI: 10.1016/j.pharmthera.2015.05.007] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/28/2015] [Indexed: 01/22/2023]
Abstract
Somatostatin is an endogeneous cyclic tetradecapeptide hormone that exerts multiple biological activities via five ubiquitously distributed receptor subtypes. Classified as a broad inhibitory neuropeptide, somatostatin has anti-secretory, anti-proliferative and anti-angiogenic effects. The clinical use of native somatostatin is limited by a very short half-life (1 to 3min) and the broad spectrum of biological responses. Thus stable, receptor-selective agonists have been developed. The majority of these somatostatin therapeutic agonists bind strongly to two of the five receptor subtypes, although recently an agonist of wider affinity has been introduced. Somatostatin agonists are established in the treatment of acromegaly with recently approved indications in the therapy of neuroendocrine tumours. Potential therapeutic uses for somatostatin analogues include diabetic complications like retinopathy, nephropathy and obesity, due to inhibition of IGF-1, VEGF together with insulin secretion and effects upon the renin-angiotensin-aldosterone system. Wider uses in anti-neoplastic therapy may also be considered and recent studies have further revealed anti-inflammatory and anti-nociceptive effects. This review provides a comprehensive, current view of the biological functions of somatostatin and potential therapeutic uses, informed by the wide range of pharmacological advances reported since the last published review in 2004 by P. Dasgupta. The pharmacology of somatostatin receptors is explained, the current uses of somatostatin agonists are discussed, and the potential future of therapeutic applications is explored.
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9
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He S, Lai Z, Ye Z, Dobbelaar P, Shah SK, Truong Q, Du W, Guo L, Liu J, Jian T, Qi H, Bakshi R, Hong Q, Dellureficio J, Reibarkh M, Samuel K, Reddy V, Mitelman S, Tong SX, Chicchi GG, Tsao KL, Trusca D, Wu M, Shao Q, Trujillo M, Fernandez G, Nelson D, Bunting P, Kerr J, Fitzgerald P, Morissette P, Volksdorf S, Eiermann GJ, Li C, Zhang B, Howard A, Zhou YP, Nargund RP, Hagmann WK. Investigation of Cardiovascular Effects of Tetrahydro-β-carboline sstr3 antagonists. ACS Med Chem Lett 2014; 5:748-53. [PMID: 25050159 PMCID: PMC4094257 DOI: 10.1021/ml500028c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/21/2014] [Indexed: 11/30/2022] Open
Abstract
Antagonism of somatostatin subtype receptor 3 (sstr3) has emerged as a potential treatment of Type 2 diabetes. Unfortunately, the development of our first preclinical candidate, MK-4256, was discontinued due to a dose-dependent QTc (QT interval corrected for heart rate) prolongation observed in a conscious cardiovascular (CV) dog model. As the fate of the entire program rested on resolving this issue, it was imperative to determine whether the observed QTc prolongation was associated with hERG channel (the protein encoded by the human Ether-à-go-go-Related Gene) binding or was mechanism-based as a result of antagonizing sstr3. We investigated a structural series containing carboxylic acids to reduce the putative hERG off-target activity. A key tool compound, 3A, was identified from this SAR effort. As a potent sstr3 antagonist, 3A was shown to reduce glucose excursion in a mouse oGTT assay. Consistent with its minimal hERG activity from in vitro assays, 3A elicited little to no effect in an anesthetized, vagus-intact CV dog model at high plasma drug levels. These results afforded the critical conclusion that sstr3 antagonism is not responsible for the QTc effects and therefore cleared a path for the program to progress.
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Affiliation(s)
- Shuwen He
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Zhong Lai
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Zhixiong Ye
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Peter
H. Dobbelaar
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Shrenik K. Shah
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Quang Truong
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Wu Du
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Liangqin Guo
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Jian Liu
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Tianying Jian
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Hongbo Qi
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Raman
K. Bakshi
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Qingmei Hong
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - James Dellureficio
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Mikhail Reibarkh
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Koppara Samuel
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Vijay
B. Reddy
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Stan Mitelman
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Sharon X. Tong
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Gary G. Chicchi
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Kwei-Lan Tsao
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Dorina Trusca
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Margaret Wu
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Qing Shao
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Maria
E. Trujillo
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Guillermo Fernandez
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Donald Nelson
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Patricia Bunting
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Janet Kerr
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Patrick Fitzgerald
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Pierre Morissette
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - Sylvia Volksdorf
- Department
of Safety Assessment, 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
| | - George J. Eiermann
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Cai Li
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Bei Zhang
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Andrew
D. Howard
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Yun-Ping Zhou
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Ravi P. Nargund
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - William K. Hagmann
- Merck Research Laboratories, Departments of Medicinal
Chemistry, Drug Metabolism and Pharmacokinetics, and Diabetes Research, 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
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10
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Li D, Wu Z, Yu Y, Ball RG, Guo L, Sherer E, He S, Hong Q, Lai Z, Qi H, Truong Q, Yang DX, Chicchi GG, Tsao KL, Trusca D, Trujillo M, Pachanski M, Eiermann GJ, Howard AD, Zhou YP, Zhang BB, Nargund RP, Hagmann WK. Diamine Derivatives as Novel Small-Molecule, Potent, and Subtype-Selective Somatostatin SST3 Receptor Agonists. ACS Med Chem Lett 2014; 5:690-5. [PMID: 24944745 DOI: 10.1021/ml500079u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 04/24/2014] [Indexed: 11/28/2022] Open
Abstract
A novel class of small-molecule, highly potent, and subtype-selective somatostatin SST3 agonists was discovered through modification of a SST3 antagonist. As an example, (1R,2S)-9 demonstrated not only potent in vitro SST3 agonist activity but also in vivo SST3 agonist activity in a mouse oral glucose tolerance test (OGTT). These agonists may be useful reagents for studying the physiological roles of the SST3 receptor and may potentially be useful as therapeutic agents.
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Affiliation(s)
- Derun Li
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhicai Wu
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Yang Yu
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Richard G. Ball
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Liangqin Guo
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Edward Sherer
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Shuwen He
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Qingmei Hong
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhong Lai
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Hongbo Qi
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Quang Truong
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - David X. Yang
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Gary G. Chicchi
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Kwei-Lan Tsao
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Dorina Trusca
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Maria Trujillo
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Michele Pachanski
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - George J. Eiermann
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Andrew D. Howard
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Yun-Ping Zhou
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Bei B. Zhang
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Ravi P. Nargund
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - William K. Hagmann
- Departments of Medicinal Chemistry and ‡Diabetes Research, Merck Research Laboratories, 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
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11
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Belema M, Nguyen VN, Bachand C, Deon DH, Goodrich JT, James CA, Lavoie R, Lopez OD, Martel A, Romine JL, Ruediger EH, Snyder LB, St Laurent DR, Yang F, Zhu J, Wong HS, Langley DR, Adams SP, Cantor GH, Chimalakonda A, Fura A, Johnson BM, Knipe JO, Parker DD, Santone KS, Fridell RA, Lemm JA, O'Boyle DR, Colonno RJ, Gao M, Meanwell NA, Hamann LG. Hepatitis C virus NS5A replication complex inhibitors: the discovery of daclatasvir. J Med Chem 2014; 57:2013-32. [PMID: 24521299 DOI: 10.1021/jm401836p] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The biphenyl derivatives 2 and 3 are prototypes of a novel class of NS5A replication complex inhibitors that demonstrate high inhibitory potency toward a panel of clinically relevant HCV strains encompassing genotypes 1-6. However, these compounds exhibit poor systemic exposure in rat pharmacokinetic studies after oral dosing. The structure-activity relationship investigations that improved the exposure properties of the parent bis-phenylimidazole chemotype, culminating in the identification of the highly potent NS5A replication complex inhibitor daclatasvir (33) are described. An element critical to success was the realization that the arylglycine cap of 2 could be replaced with an alkylglycine derivative and still maintain the high inhibitory potency of the series if accompanied with a stereoinversion, a finding that enabled a rapid optimization of exposure properties. Compound 33 had EC50 values of 50 and 9 pM toward genotype-1a and -1b replicons, respectively, and oral bioavailabilities of 38-108% in preclinical species. Compound 33 provided clinical proof-of-concept for the NS5A replication complex inhibitor class, and regulatory approval to market it with the NS3/4A protease inhibitor asunaprevir for the treatment of HCV genotype-1b infection has recently been sought in Japan.
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Affiliation(s)
- Makonen Belema
- Departments of Discovery Chemistry, ‡Discovery Chemistry Synthesis, §Computer-Assisted Drug Design, and ¶Pharmaceutical Candidate Optimization, #Virology, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
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12
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Laine AE, Lood C, Koskinen AMP. Pharmacological importance of optically active tetrahydro-β-carbolines and synthetic approaches to create the C1 stereocenter. Molecules 2014; 19:1544-67. [PMID: 24473212 PMCID: PMC6271216 DOI: 10.3390/molecules19021544] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 01/17/2014] [Accepted: 01/20/2014] [Indexed: 12/24/2022] Open
Abstract
1,2,3,4-Tetrahydro-β-carbolines (THβCs) are a pharmacologically important group of compounds belonging to the indole alkaloids. C1-Substituted optically active THβCs have been the target of extensive synthetic efforts due to the presence of the scaffold in numerous natural products and synthetic targets. This review briefly summarizes the methods to obtain the C1 stereocenter and concentrates on evaluating the pharmacological importance of optically active C1-substituted THβCs, including their PDE5-inhibitory, antimalarial, antiviral and antitumor activities.
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Affiliation(s)
- Aino E Laine
- Laboratory of Organic Chemistry, Department of Chemistry, School of Chemical Tehcnology, Aalto University, PO Box 16100, Kemistintie 1, Aalto FI-00076, Finland.
| | - Christopher Lood
- Laboratory of Organic Chemistry, Department of Chemistry, School of Chemical Tehcnology, Aalto University, PO Box 16100, Kemistintie 1, Aalto FI-00076, Finland.
| | - Ari M P Koskinen
- Laboratory of Organic Chemistry, Department of Chemistry, School of Chemical Tehcnology, Aalto University, PO Box 16100, Kemistintie 1, Aalto FI-00076, Finland.
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13
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14
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Peptide receptor targeting in cancer: the somatostatin paradigm. INTERNATIONAL JOURNAL OF PEPTIDES 2013; 2013:926295. [PMID: 23476673 PMCID: PMC3582104 DOI: 10.1155/2013/926295] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Revised: 12/10/2012] [Accepted: 12/28/2012] [Indexed: 02/06/2023]
Abstract
Peptide receptors involved in pathophysiological processes represent promising therapeutic targets. Neuropeptide somatostatin (SST) is produced by specialized cells in a large number of human organs and tissues. SST primarily acts as inhibitor of endocrine and exocrine secretion via the activation of five G-protein-coupled receptors, named sst1–5, while in central nervous system, SST acts as a neurotransmitter/neuromodulator, regulating locomotory and cognitive functions. Critical points of SST/SST receptor biology, such as signaling pathways of individual receptor subtypes, homo- and heterodimerization, trafficking, and cross-talk with growth factor receptors, have been extensively studied, although functions associated with several pathological conditions, including cancer, are still not completely unraveled. Importantly, SST exerts antiproliferative and antiangiogenic effects on cancer cells in vitro, and on experimental tumors in vivo. Moreover, SST agonists are clinically effective as antitumor agents for pituitary adenomas and gastro-pancreatic neuroendocrine tumors. However, SST receptors being expressed by tumor cells of various tumor histotypes, their pharmacological use is potentially extendible to other cancer types, although to date no significant results have been obtained. In this paper the most recent findings on the expression and functional roles of SST and SST receptors in tumor cells are discussed.
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15
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He S, Ye Z, Truong Q, Shah S, Du W, Guo L, Dobbelaar PH, Lai Z, Liu J, Jian T, Qi H, Bakshi RK, Hong Q, Dellureficio J, Pasternak A, Feng Z, deJesus R, Yang L, Reibarkh M, Bradley SA, Holmes MA, Ball RG, Ruck RT, Huffman MA, Wong F, Samuel K, Reddy VB, Mitelman S, Tong SX, Chicchi GG, Tsao KL, Trusca D, Wu M, Shao Q, Trujillo ME, Eiermann GJ, Li C, Zhang BB, Howard AD, Zhou YP, Nargund RP, Hagmann WK. The Discovery of MK-4256, a Potent SSTR3 Antagonist as a Potential Treatment of Type 2 Diabetes. ACS Med Chem Lett 2012; 3:484-9. [PMID: 24900499 DOI: 10.1021/ml300063m] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 05/07/2012] [Indexed: 01/09/2023] Open
Abstract
A structure-activity relationship study of the imidazolyl-β-tetrahydrocarboline series identified MK-4256 as a potent, selective SSTR3 antagonist, which demonstrated superior efficacy in a mouse oGTT model. MK-4256 reduced glucose excursion in a dose-dependent fashion with maximal efficacy achieved at doses as low as 0.03 mg/kg po. As compared with glipizide, MK-4256 showed a minimal hypoglycemia risk in mice.
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Affiliation(s)
- Shuwen He
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhixiong Ye
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Quang Truong
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Shrenik Shah
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Wu Du
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Liangqin Guo
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Peter H. Dobbelaar
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhong Lai
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Jian Liu
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Tianying Jian
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Hongbo Qi
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Raman K. Bakshi
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Qingmei Hong
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - James Dellureficio
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Alexander Pasternak
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Zhe Feng
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Reynalda deJesus
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Lihu Yang
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Mikhail Reibarkh
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Scott A. Bradley
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Mark A. Holmes
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Richard G. Ball
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Rebecca T. Ruck
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Mark A. Huffman
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Frederick Wong
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Koppara Samuel
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Vijay B. Reddy
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Stan Mitelman
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Sharon X. Tong
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Gary G. Chicchi
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Kwei-Lan Tsao
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Dorina Trusca
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Margaret Wu
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Qing Shao
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Maria E. Trujillo
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - George J. Eiermann
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Cai Li
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Bei B. Zhang
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Andrew D. Howard
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Yun-Ping Zhou
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Ravi P. Nargund
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - William K. Hagmann
- Departments of †Medicinal Chemistry, ‡Process Research, §Drug Metabolism and Pharmacokinetics, and ∥Diabetes Research, Merck Research Laboratories, 126 East
Lincoln Avenue, Rahway, New Jersey 07065, United States
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16
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Pasternak A, Feng Z, de Jesus R, Ye Z, He S, Dobbelaar P, Bradley S, Chicchi GG, Tsao KL, Trusca D, Eiermann GJ, Li C, Feng Y, Wu M, Shao Q, Zhang BB, Nargund R, Mills SG, Howard AD, Yang L, Zhou YP. Stimulation of Glucose-Dependent Insulin Secretion by a Potent, Selective sst3 Antagonist. ACS Med Chem Lett 2012; 3:289-93. [PMID: 24900466 PMCID: PMC4025754 DOI: 10.1021/ml200272z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Accepted: 02/13/2012] [Indexed: 12/22/2022] Open
Abstract
This letter provides the first pharmacological proof of principle that the sst3 receptor mediates glucose-stimulated insulin secretion (GSIS) from pancreatic β-cells. To enable these studies, we identified the selective sst3 antagonist (1R,3R)-3-(5-phenyl-1H-imidazol-2-yl)-1-(tetrahydro-2H-pyran-4-yl)-2,3,4,9-tetrahydro-1H-β-carboline (5a), with improved ion channel selectivity and mouse pharmacokinetic properties as compared to previously described tetrahydro-β-carboline imidazole sst3 antagonists. We demonstrated that compound 5a enhances GSIS in pancreatic β-cells and blocks glucose excursion induced by dextrose challenge in ipGTT and OGTT models in mice. Finally, we provided strong evidence that these effects are mechanism-based in an ipGTT study, showing reduction of glucose excursion in wild-type but not sst3 knockout mice. Thus, we have shown that antagonism of sst3 represents a new mechanism with potential in treating type 2 diabetes mellitus.
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Affiliation(s)
| | - Zhe Feng
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Reynalda de Jesus
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Zhixiong Ye
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Shuwen He
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Peter Dobbelaar
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Scott
A. Bradley
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Gary G. Chicchi
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Kwei-Lan Tsao
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Dorina Trusca
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | | | - Cai Li
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Yue Feng
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Margaret Wu
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Qing Shao
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Bei B. Zhang
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Ravi Nargund
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Sander G. Mills
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Andrew D. Howard
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Lihu Yang
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Yun-Ping Zhou
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
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17
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18
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Kärkäs MD, Johnston EV, Karlsson EA, Lee B, Åkermark T, Shariatgorji M, Ilag L, Hansson Ö, Bäckvall J, Åkermark B. Light‐Induced Water Oxidation by a Ru complex Containing a Bio‐Inspired Ligand. Chemistry 2011; 17:7953-9. [DOI: 10.1002/chem.201003702] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 11/09/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
| | - Eric V. Johnston
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
| | - Erik A. Karlsson
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
| | - Bao‐Lin Lee
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
| | - Torbjörn Åkermark
- Applied Electrochemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), 100 44 Stockholm (Sweden)
| | - Mohammadreza Shariatgorji
- Medical Mass Spectrometry, Department of Pharmaceutical Biosciences, Uppsala University, 75123 Uppsala (Sweden)
| | - Leopold Ilag
- Department of Analytical Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden)
| | - Örjan Hansson
- Biophysics Group, Department of Chemistry, University of Gothenburg, P.O. Box 462, 40530 Gothenburg (Sweden)
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
| | - Björn Åkermark
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm (Sweden), Fax: +46 8 154908
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19
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Dyachenko VD, Karpov EN. Aliphatic aldehydes in the synthesis of carbo- and heterocycles: Part II. Synthesis of six- and seven-membered rings, bicyclic compounds, and macrocycles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2011. [DOI: 10.1134/s1070428011010015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Affiliation(s)
- Ujendra Kumar
- Faculty of Pharmaceutical Sciences, Department of Pharmacology and Toxicology, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.
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21
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Troxler T, Hurth K, Schuh KH, Schoeffter P, Langenegger D, Enz A, Hoyer D. Decahydroisoquinoline derivatives as novel non-peptidic, potent and subtype-selective somatostatin sst3 receptor antagonists. Bioorg Med Chem Lett 2010; 20:1728-34. [DOI: 10.1016/j.bmcl.2010.01.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Revised: 01/06/2010] [Accepted: 01/07/2010] [Indexed: 01/11/2023]
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22
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Foss FW, Mathews TP, Kharel Y, Kennedy PC, Snyder AH, Davis MD, Lynch KR, Macdonald TL. Synthesis and biological evaluation of sphingosine kinase substrates as sphingosine-1-phosphate receptor prodrugs. Bioorg Med Chem 2009; 17:6123-36. [PMID: 19632123 DOI: 10.1016/j.bmc.2009.04.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Revised: 04/03/2009] [Accepted: 04/09/2009] [Indexed: 10/20/2022]
Abstract
In the search for bioactive sphingosine 1-phosphate (S1P) receptor ligands, a series of 2-amino-2-heterocyclic-propanols were synthesized. These molecules were discovered to be substrates of human-sphingosine kinases 1 and 2 (SPHK1 and SPHK2). When phosphorylated, the resultant phosphates showed varied activities at the five sphingosine-1-phosphate (S1P) receptors (S1P(1-5)). Agonism at S1P(1) was displayed in vivo by induction of lymphopenia. A stereochemical preference of the quaternary carbon was crucial for phosphorylation by the kinases and alters binding affinities at the S1P receptors. Oxazole and oxadiazole compounds are superior kinase substrates to FTY720, the prototypical prodrug immunomodulator, fingolimod (FTY720). The oxazole-derived structure was the most active for human SPHK2. Imidazole analogues were less active substrates for SPHKs, but more potent and selective agonists of the S1P(1) receptor; additionally, the imidazole class of compounds rendered mice lymphopenic.
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Affiliation(s)
- Frank W Foss
- Department of Chemistry, University of Virginia, Charlottesville, 22904, USA
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23
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Grace CRR, Erchegyi J, Reubi JC, Rivier JE, Riek R. Three-dimensional consensus structure of sst2-selective somatostatin (SRIF) antagonists by NMR. Biopolymers 2008; 89:1077-87. [PMID: 18655144 DOI: 10.1002/bip.21060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The three-dimensional NMR structures of seven octapeptide analogs of somatostatin (SRIF), based on octreotide, with the basic sequence H-Cpa/Phe2-c[DCys3-Xxx7-DTrp/DAph(Cbm)8-Lys9-Thr10-Cys14]-Yyy-NH2 (the numbering refers to the position in native SRIF), with Xxx7 being Aph(Cbm)/Tyr/Agl(NMe,benzoyl) and Yyy being Nal/DTyr/Thr, are presented here. Most of these analogs exhibit potent and highly selective binding to sst2 receptors, and all of the analogs are antagonists inhibiting receptor signaling. Based on their consensus 3D structure, the pharmacophore of the sst2-selective antagonist has been defined. The pharmacophore involves the side chains of Cpa2, DTrp/DAph(Cbm)8, and Lys9, with the backbone for most of the sst2-selective antagonists comprised a Type-II' beta-turn. Hence, the sst2-selective antagonist pharmacophore is very similar to the sst2-selective agonist pharmacophore previously described.
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Affiliation(s)
- Christy Rani R Grace
- Structural Biology Laboratory, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037, USA
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24
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Barbieri F, Pattarozzi A, Gatti M, Porcile C, Bajetto A, Ferrari A, Culler MD, Florio T. Somatostatin receptors 1, 2, and 5 cooperate in the somatostatin inhibition of C6 glioma cell proliferation in vitro via a phosphotyrosine phosphatase-eta-dependent inhibition of extracellularly regulated kinase-1/2. Endocrinology 2008; 149:4736-46. [PMID: 18566118 DOI: 10.1210/en.2007-1762] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Somatostatin inhibits cell proliferation through the activation of five receptors (SSTR1-5) expressed in normal and cancer cells. We analyzed the role of individual SSTRs in the antiproliferative activity of somatostatin in C6 rat glioma cells. Somatostatin dose-dependently inhibited C6 proliferation, an effect mimicked, with different efficacy or potency, by BIM-23745, BIM-23120, BIM-23206 (agonists for SSTR1, -2, and -5) and octreotide. The activation of SSTR3 was ineffective, although all SSTRs are functionally active, as demonstrated by the inhibition of cAMP production. All SSTRs induced cytostatic effects through the activation of the phosphotyrosine phosphatase PTPeta and the inhibition of ERK1/2. For possible synergism between SSTR subtypes, we tested the effects of the combined treatment with two agonists (SSTR1+2 or SSTR2+5) or bifunctional compounds. The simultaneous activation of SSTR1 and SSTR2 slightly increased the efficacy of the individual compounds with an IC50 in between the single receptor activation. SSTR2+5 activation displayed a pattern of response superimposable to that of the SSTR5 agonist alone (low potency and higher efficacy, as compared with BIM-23120). The simultaneous activation of SSTR1, -2, and -5 resulted in a response similar to somatostatin. In conclusion, the cytostatic effects of somatostatin in C6 cells are mediated by the SSTR1, -2, and -5 through the same intracellular pathway: activation of PTPeta and inhibition of ERK1/2 activity. Somatostatin is more effective than the individual agonists. The combined activation of SSTR1 and -2 shows a partial synergism as far as antiproliferative activity, whereas SSTR2 and -5 activation results in a response resembling the SSTR5 effects.
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Affiliation(s)
- Federica Barbieri
- Laboratory pf Pharmacology, Department of Oncology, Biology, and Genetics, University of Genova, Viale Benedetto XV, 2, 16132 Genova, Italy
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25
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von Nussbaum F, Anlauf S, Freiberg C, Benet-Buchholz J, Schamberger J, Henkel T, Schiffer G, Häbich D. Total Synthesis and Initial Structure–Activity Relationships of Longicatenamycin A. ChemMedChem 2008; 3:619-26. [DOI: 10.1002/cmdc.200700297] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Salvadori S, Fiorini S, Trapella C, Porreca F, Davis P, Sasaki^ Y, Ambo A, Ewa DM, Lazarus LH, Balboni G. Role of benzimidazole (Bid) in the delta-opioid agonist pseudopeptide H-Dmt-Tic-NH-CH(2)-Bid (UFP-502). Bioorg Med Chem 2008; 16:3032-8. [PMID: 18178091 PMCID: PMC2390930 DOI: 10.1016/j.bmc.2007.12.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 12/11/2007] [Accepted: 12/18/2007] [Indexed: 10/22/2022]
Abstract
H-Dmt-Tic-NH-CH(2)-Bid (UFP-502) was the first delta-opioid agonist prepared from the Dmt-Tic pharmacophore. It showed interesting pharmacological properties, such as stimulation of mRNA BDNF expression and antidepression. To evaluate the importance of 1H-benzimidazol-2-yl (Bid) in the induction of delta-agonism, it was substituted by similar heterocycles: The substitution of NH(1) by O or S transforms the reference delta-agonist into delta-antagonists. Phenyl ring of benzimidazole is not important for delta-agonism; in fact 1H-imidazole-2-yl retains delta-agonist activity.
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Affiliation(s)
- Severo Salvadori
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
| | - Stella Fiorini
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
| | - Claudio Trapella
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
| | - Frank Porreca
- Department of Pharmacology, University of Arizona, Tucson, Arizona 85721, USA
| | - Peg Davis
- Department of Pharmacology, University of Arizona, Tucson, Arizona 85721, USA
| | - Yusuke Sasaki^
- Tohoku Pharmaceutical University, 4-1, Komatsushima 4-chome, Aoba-Ku, Sendai 981-8558, Japan
| | - Akihiro Ambo
- Tohoku Pharmaceutical University, 4-1, Komatsushima 4-chome, Aoba-Ku, Sendai 981-8558, Japan
| | - D Marczak Ewa
- Medicinal Chemistry Group, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Lawrence H. Lazarus
- Medicinal Chemistry Group, Laboratory of Pharmacology and Chemistry, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Gianfranco Balboni
- Department of Pharmaceutical Sciences and Biotechnology Center, University of Ferrara, I-44100 Ferrara, Italy
- Department of Toxicology, University of Cagliari, I-09124, Cagliari, Italy
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27
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Blakeney JS, Reid RC, Le GT, Fairlie DP. Nonpeptidic Ligands for Peptide-Activated G Protein-Coupled Receptors. Chem Rev 2007; 107:2960-3041. [PMID: 17622179 DOI: 10.1021/cr050984g] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jade S Blakeney
- Centre for Drug Design and Development, Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland 4072, Australia
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28
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Troxler T, Hoyer D, Langenegger D, Neumann P, Pfäffli P, Schoeffter P, Sorg D, Swoboda R, Hurth K. Identification and SAR of potent and selective non-peptide obeline somatostatin sst1 receptor antagonists. Bioorg Med Chem Lett 2007; 17:3983-7. [PMID: 17507221 DOI: 10.1016/j.bmcl.2007.04.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 04/24/2007] [Accepted: 04/25/2007] [Indexed: 11/20/2022]
Abstract
A novel class of non-peptide somatostatin receptor ligands bearing the octahydrobenzo[g]quinoline (obeline) structural element has been identified. SAR studies have been performed that led to the discovery of derivatives with high affinity (pK(d) r sst(1) > or = 9) and selectivity (> or = 150-fold for h sst(1) over h sst(2)-h sst(5)) for somatostatin receptor subtype sst(1). In a functional assay, the compounds act as antagonists at human recombinant sst(1) receptors.
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Affiliation(s)
- Thomas Troxler
- Novartis Institutes for BioMedical Research, CH-4002 Basel, Switzerland.
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29
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Mowery BP, Prasad V, Kenesky CS, Angeles AR, Taylor LL, Feng JJ, Chen WL, Lin A, Cheng FC, Smith AB, Hirschmann R. Catechol: A Minimal Scaffold for Non-Peptide Peptidomimetics of thei+ 1 andi+ 2 Positions of the β-Turn of Somatostatin. Org Lett 2006; 8:4397-400. [PMID: 16986909 DOI: 10.1021/ol061488x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The design, synthesis, and evaluation of a series of catechol-based non-peptide peptidomimetics of the peptide hormone somatostatin have been achieved. These ligands comprise the simplest known non-peptide mimetics of the i + 1 and i + 2 positions of the somatostatin beta-turn. Incorporation of an additional side chain to include the i position of the beta-turn induces a selective 9-fold affinity enhancement at the sst2 receptor.
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Affiliation(s)
- Brendan P Mowery
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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30
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Surgand JS, Rodrigo J, Kellenberger E, Rognan D. A chemogenomic analysis of the transmembrane binding cavity of human G-protein-coupled receptors. Proteins 2006; 62:509-38. [PMID: 16294340 DOI: 10.1002/prot.20768] [Citation(s) in RCA: 189] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The amino acid sequences of 369 human nonolfactory G-protein-coupled receptors (GPCRs) have been aligned at the seven transmembrane domain (TM) and used to extract the nature of 30 critical residues supposed--from the X-ray structure of bovine rhodopsin bound to retinal--to line the TM binding cavity of ground-state receptors. Interestingly, the clustering of human GPCRs from these 30 residues mirrors the recently described phylogenetic tree of full-sequence human GPCRs (Fredriksson et al., Mol Pharmacol 2003;63:1256-1272) with few exceptions. A TM cavity could be found for all investigated GPCRs with physicochemical properties matching that of their cognate ligands. The current approach allows a very fast comparison of most human GPCRs from the focused perspective of the predicted TM cavity and permits to easily detect key residues that drive ligand selectivity or promiscuity.
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31
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Gu X, Dragovic J, Koo GC, Koprak SL, LeGrand C, Mundt SS, Shah K, Springer MS, Tan EY, Thieringer R, Hermanowski-Vosatka A, Zokian HJ, Balkovec JM, Waddell ST. Discovery of 4-heteroarylbicyclo[2.2.2]octyltriazoles as potent and selective inhibitors of 11β-HSD1: Novel therapeutic agents for the treatment of metabolic syndrome. Bioorg Med Chem Lett 2005; 15:5266-9. [PMID: 16185866 DOI: 10.1016/j.bmcl.2005.08.052] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2005] [Revised: 08/15/2005] [Accepted: 08/15/2005] [Indexed: 11/25/2022]
Abstract
Replacement of the pentyl chain on our original bicyclo[2.2.2]octyltriazole leads 1 and 2 has led to the discovery that heteroaryl substituted bicyclo[2.2.2]octyltriazoles are potent and selective 11beta-hydroxysteroid dehydrogenase type I (11beta-HSD1) inhibitors with excellent pharmacokinetic profiles.
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Affiliation(s)
- Xin Gu
- Department of Medicinal Chemistry, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA.
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32
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Contour-Galcéra MO, Sidhu A, Plas P, Roubert P. 3-Thio-1,2,4-triazoles, novel somatostatin sst2/sst5 agonists. Bioorg Med Chem Lett 2005; 15:3555-9. [PMID: 15982879 DOI: 10.1016/j.bmcl.2005.05.061] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2005] [Revised: 05/12/2005] [Accepted: 05/17/2005] [Indexed: 11/16/2022]
Abstract
Novel 3-thio-1,2,4-triazoles have been obtained via a solution-phase parallel synthesis strategy, affording potent non-peptidic human somatostatin receptor subtypes 2 and 5 agonists.
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33
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Low MJ. Clinical endocrinology and metabolism. The somatostatin neuroendocrine system: physiology and clinical relevance in gastrointestinal and pancreatic disorders. Best Pract Res Clin Endocrinol Metab 2004; 18:607-22. [PMID: 15533778 DOI: 10.1016/j.beem.2004.08.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Somatostatin is produced in enteroendocrine D cells and intrinsic neurons of the stomach, intestines and pancreas. Its physiologic actions are mediated primarily by somatostatin receptors type 2 and 5, and include the inhibition of secretion of most endocrine and exocrine factors. Diseases directly attributable to somatostatin excess or deficiency are rare, although there is a complex pathogenic relationship between persistent Helicobacter pylori infection and reduced somatostatin in chronic gastritis. Abundant somatostatin receptors on many neoplastic and inflammatory cells are the basis for sensitive in vivo imaging with radiolabeled somatostatin analogs and provide a therapeutic target. Current indications for somatostatin therapy include hormone-expressing neuroendocrine tumors, intractable diarrhea and variceal bleeding secondary to portal hypertension. Exciting advances are being made in the development of high-affinity nonpeptide analogs with receptor-subtype selectivity and increased bioavailability. Somatostatin analogs coupled to high-energy radionuclides show promise as novel cytotoxic agents for certain metastatic tumors.
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Affiliation(s)
- Malcolm J Low
- Department of Behavioral Neuroscience, Oregon Health and Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239, USA.
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34
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Dasgupta P. Somatostatin analogues: multiple roles in cellular proliferation, neoplasia, and angiogenesis. Pharmacol Ther 2004; 102:61-85. [PMID: 15056499 DOI: 10.1016/j.pharmthera.2004.02.002] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Angiogenesis, the development of new blood vessels is a crucial process both for tumor growth and metastatic dissemination. Additionally, dysregulation in angiogenesis has been implicated in the pathogenesis of cardiovascular disease, proliferative retinopathy, diabetic nephropathy, and rheumatoid arthritis (RA). The neuropeptide somatostatin has been shown to be a powerful inhibitor of neovascularization in several experimental models. Furthermore, somatostatin receptors (sst) are expressed on endothelial cells; particularly, sst2 has been found to be uniquely up-regulated during the angiogenic switch, from quiescent to proliferative endothelium. The present manuscript reviews the anti-angiogenic activity of somatostatin and its analogues in neoplastic and nonneoplastic disease. The role of sst subtypes particularly sst2 in mediating its angioinhibitory activity is described. Somatostatin agonists may also exert their anti-angiogenic activity indirectly by inhibition of growth factors like vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and the growth hormone (GH)/insulin-like growth factor-I (IGF-I) axis or through its immunomodulatory effects. However, the therapeutic utility of somatostatin agonists as anti-angiogenic drugs in these diseases remains confusing because of conflicting results from different studies. More basic research, as well as patient-oriented studies, is required to firmly establish the clinical potential of somatostatin agonists in therapeutic angiogenesis. The currently available somatostatin agonists have high affinity of sst2 with lower affinities for sst3 and sst5. The emergence of novel somatostatin agonists especially bispecific analogues (agonists targeting multiple cellular receptors) and conjugates (synthesized by chemically linking somatostatin analogues with other antineoplastic agents) with improved receptor specificity signify a new generation of anti-angiogenics, which may represent novel strategies in the treatment of neovascularization-related diseases.
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Affiliation(s)
- Piyali Dasgupta
- Department of Interdisciplinary Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Room 2068A, MRC-2 East, 12902 Magnolia Drive, Tampa, FL 33612, USA.
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35
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Bleicher KH, Green LG, Martin RE, Rogers-Evans M. Ligand identification for G-protein-coupled receptors: a lead generation perspective. Curr Opin Chem Biol 2004; 8:287-96. [PMID: 15183327 DOI: 10.1016/j.cbpa.2004.04.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This review addresses strategies for the generation of ligands for G-protein-coupled receptors outside classical high-throughput screening and literature based approaches. These range from the chemical intuition-based strategies of endogenous ligand elaboration and privileged structure decoration to the in silico approaches of virtual screening and de novo design. Examples are cited where supporting pharmacological data has been presented.
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Affiliation(s)
- Konrad H Bleicher
- F Hoffmann-La Roche Ltd, Pharmaceuticals Division, Lead Generation, PRBD-CI, Bldg 65/410, CH-4070 Basel, Switzerland.
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36
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Weckbecker G, Lewis I, Albert R, Schmid HA, Hoyer D, Bruns C. Opportunities in somatostatin research: biological, chemical and therapeutic aspects. Nat Rev Drug Discov 2004; 2:999-1017. [PMID: 14654798 DOI: 10.1038/nrd1255] [Citation(s) in RCA: 398] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Gisbert Weckbecker
- Transplantation and Immunology, Novartis Institutes for BioMedical Research, Novartis Pharma AG, CH-4002 Basel, Switzerland.
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37
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Møller LN, Stidsen CE, Hartmann B, Holst JJ. Somatostatin receptors. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2003; 1616:1-84. [PMID: 14507421 DOI: 10.1016/s0005-2736(03)00235-9] [Citation(s) in RCA: 255] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In 1972, Brazeau et al. isolated somatostatin (somatotropin release-inhibiting factor, SRIF), a cyclic polypeptide with two biologically active isoforms (SRIF-14 and SRIF-28). This event prompted the successful quest for SRIF receptors. Then, nearly a quarter of a century later, it was announced that a neuropeptide, to be named cortistatin (CST), had been cloned, bearing strong resemblance to SRIF. Evidence of special CST receptors never emerged, however. CST rather competed with both SRIF isoforms for specific receptor binding. And binding to the known subtypes with affinities in the nanomolar range, it has therefore been acknowledged to be a third endogenous ligand at SRIF receptors. This review goes through mechanisms of signal transduction, pharmacology, and anatomical distribution of SRIF receptors. Structurally, SRIF receptors belong to the superfamily of G protein-coupled (GPC) receptors, sharing the characteristic seven-transmembrane-segment (STMS) topography. Years of intensive research have resulted in cloning of five receptor subtypes (sst(1)-sst(5)), one of which is represented by two splice variants (sst(2A) and sst(2B)). The individual subtypes, functionally coupled to the effectors of signal transduction, are differentially expressed throughout the mammalian organism, with corresponding differences in physiological impact. It is evident that receptor function, from a physiological point of view, cannot simply be reduced to the accumulated operations of individual receptors. Far from being isolated functional units, receptors co-operate. The total receptor apparatus of individual cell types is composed of different-ligand receptors (e.g. SRIF and non-SRIF receptors) and co-expressed receptor subtypes (e.g. sst(2) and sst(5) receptors) in characteristic proportions. In other words, levels of individual receptor subtypes are highly cell-specific and vary with the co-expression of different-ligand receptors. However, the question is how to quantify the relative contributions of individual receptor subtypes to the integration of transduced signals, ultimately the result of collective receptor activity. The generation of knock-out (KO) mice, intended as a means to define the contributions made by individual receptor subtypes, necessarily marks but an approximation. Furthermore, we must now take into account the stunning complexity of receptor co-operation indicated by the observation of receptor homo- and heterodimerisation, let alone oligomerisation. Theoretically, this phenomenon adds a novel series of functional megareceptors/super-receptors, with varied pharmacological profiles, to the catalogue of monomeric receptor subtypes isolated and cloned in the past. SRIF analogues include both peptides and non-peptides, receptor agonists and antagonists. Relatively long half lives, as compared to those of the endogenous ligands, have been paramount from the outset. Motivated by theoretical puzzles or the shortcomings of present-day diagnostics and therapy, investigators have also aimed to produce subtype-selective analogues. Several have become available.
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Affiliation(s)
- Lars Neisig Møller
- Department of Medical Physiology, The Panum Institute, University of Copenhagen, DK-2200 Copenhagen, Denmark
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38
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Bänziger M, Cercus J, Hirt H, Laumen K, Malan C, Spindler F, Struber F, Troxler T. The development of a practical synthesis of the potent and selective somatostatin sst3 receptor antagonist [4-(3,4-difluoro-phenyl)-piperazine-1-yl]-{(4S,4aS,8aR)-2[(S)-3-(6-methoxy-pyridin-3-yl)-2-methyl-propyl]-decahydroisoquinoline-4-yl}-methanone (NVP-ACQ090). ACTA ACUST UNITED AC 2003. [DOI: 10.1016/j.tetasy.2003.07.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Abstract
During the past decade, proof of the principle that peptide receptors can be used successfully for in vivo targeting of human cancers has been provided. The molecular basis for targeting rests on the in vitro observation that peptide receptors can be expressed in large quantities in certain tumors. The clinical impact is at the diagnostic level: in vivo receptor scintigraphy uses radiolabeled peptides for the localization of tumors and their metastases. It is also at the therapeutic level: peptide receptor radiotherapy of tumors emerges as a serious treatment option. Peptides linked to cytotoxic agents are also considered for therapeutic applications. The use of nonradiolabeled, noncytotoxic peptide analogs for long-term antiproliferative treatment of tumors appears promising for only a few tumor types, whereas the symptomatic treatment of neuroendocrine tumors by somatostatin analogs is clearly successful. The present review summarizes and critically evaluates the in vitro data on peptide and peptide receptor expression in human cancers. These data are considered to be the molecular basis for peptide receptor targeting of tumors. The paradigmatic peptide somatostatin and its receptors are extensively reviewed in the light of in vivo targeting of neuroendocrine tumors. The role of the more recently described targeting peptides vasoactive intestinal peptide, gastrin-releasing peptide, and cholecystokinin/gastrin is discussed. Other emerging and promising peptides and their respective receptors, including neurotensin, substance P, and neuropeptide Y, are introduced. This information relates to established and potential clinical applications in oncology.
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Affiliation(s)
- Jean Claude Reubi
- Division of Cell Biology and Experimental Cancer Research, Institute of Pathology, University of Berne, CH-3010 Berne, Switzerland
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40
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Lewis I, Bauer W, Albert R, Chandramouli N, Pless J, Weckbecker G, Bruns C. A novel somatostatin mimic with broad somatotropin release inhibitory factor receptor binding and superior therapeutic potential. J Med Chem 2003; 46:2334-44. [PMID: 12773038 DOI: 10.1021/jm021093t] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A rational drug design approach, capitalizing on structure-activity relationships and involving transposition of functional groups from somatotropin release inhibitory factor (SRIF) into a reduced size cyclohexapeptide template, has led to the discovery of SOM230 (25), a novel, stable cyclohexapeptide somatostatin mimic that exhibits unique high-affinity binding to human somatostatin receptors (subtypes sst1-sst5). SOM230 has potent, long-lasting inhibitory effects on growth hormone and insulin-like growth factor-1 release and is a promising development candidate currently under evaluation in phase I clinical trials.
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Affiliation(s)
- Ian Lewis
- Transplantation Research Department, Novartis Pharma, CH-4002 Basel, Switzerland.
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41
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Cervia D, Fehlmann D, Hoyer D. Native somatostatin sst2 and sst5 receptors functionally coupled to Gi/o-protein, but not to the serum response element in AtT-20 mouse tumour corticotrophs. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2003; 367:578-87. [PMID: 12750875 DOI: 10.1007/s00210-003-0752-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2003] [Accepted: 03/17/2003] [Indexed: 10/25/2022]
Abstract
Of the five cloned somatostatin (SRIF: somatotropin release inhibitory factor) receptors (sst1-5), only sst2 and sst5 receptors appear to be endogenously expressed and functionally active in AtT-20 mouse anterior pituitary tumour cells. In this study, the presence and the functional coupling of SRIF receptors to G-protein in AtT-20 cells was evaluated by receptor autoradiography and guanosine-5'-Omicron-(3-[35S]thio)-triphosphate ([35S]GTPgammaS) binding, respectively. In addition, transcriptional effects via the serum response element (SRE) were assessed in AtT-20-SRE-luci cells, engineered to express constitutively SRE upstream of the luciferase reporter gene. [125I]LTT-SRIF-28, [125I]CGP 23996 and [125I]Tyr3-octreotide binding illustrates the high level of sst2/5 receptor in AtT-20 cell membranes. SRIF-14 and SRIF-28 produced a concentration-dependent increase in [35S]GTPgammaS binding (pEC50=6.72 and 7.45; Emax=79 and 74.9, respectively) which was completely abolished by pertussis toxin. sst2/5 receptor-selective ligands caused a concentration-dependent increase in [35S]GTPgammaS binding (pEC50=7.74-5.84; Emax=76.6-20.2) while sst1/3/4 receptor-selective ligands were devoid of activity. The binding profiles of [125I]LTT-SRIF-28 and the inhibition of cAMP accumulation correlated highly significantly with their corresponding [35S]GTPgammaS binding profiles (r=0.862 and 0.874, respectively). The effects of the sst2 receptor-preferring agonists Tyr3-octreotide and BIM 23027 on [35S]GTPgammaS binding, but not those of SRIF-14 and the sst5/1 receptor selective-agonist L-817,818, were competitively antagonised by the sst2 receptor antagonist d-Tyr8-CYN 154806 (pKB=7.36 and 7.72, respectively; slope factors not significantly different from unity). In AtT-20-SRE-luci cells, which carry a SRE-luciferase construct functioning in a very efficient manner, SRIF and its analogues did not affect luciferase activity. Taken together, these results demonstrate that in AtT-20 cells the expression of sst2 and sst5 receptors fit with their functional coupling to G(i/o)-proteins. The pharmacological implications of the existence of different ligand/receptor complexes are discussed. However, the intracellular pathways coupled to the activation of sst2 and sst5 receptors appear not to modulate the SRE-mediated transcriptional activity, suggesting that SRIF effects on gene expression coupled to mechanisms that have promoters other than SRE.
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Affiliation(s)
- Davide Cervia
- Dipartimento di Fisiologia e Biochimica G. Moruzzi, Università di Pisa, 56127 Pisa, Italy.
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42
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Cervia D, Nunn C, Fehlmann D, Langenegger D, Schuepbach E, Hoyer D. Pharmacological characterisation of native somatostatin receptors in AtT-20 mouse tumour corticotrophs. Br J Pharmacol 2003; 139:109-21. [PMID: 12746229 PMCID: PMC1573832 DOI: 10.1038/sj.bjp.0705235] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
1. The mouse corticotroph tumour cell line AtT-20 is a useful model to investigate the physiological role of native somatostatin (SRIF, Somatotropin release inhibitory factor) receptor subtypes (sst(1) - sst(5)). The objective of this study was to characterise the pharmacological features and the functional effects of SRIF receptors expressed by AtT-20 cells using radioligand binding and cAMP accumulation. 2. [(125)I]LTT-SRIF-28, [(125)I]CGP 23996, [(125)I]Tyr(10)-cortistatin-14 and [(125)I]Tyr(3)-octreotide labelled SRIF receptor binding sites with high affinity and in a saturable manner (B(max)=315, 274, 239 and 206 fmol mg(-1), respectively). [(125)I]LTT-SRIF-28 labels significantly more sites than [(125)I]Tyr(10) -cortistatin-14 and [(125)I]Tyr(3) -octreotide as seen previously in cells expressing pure populations of sst(2) or sst(5) receptors. 3. SRIF analogues displaced the binding of the four radioligands. sst(2/5) receptor-selective ligands showed much higher affinity than sst(1/3/4) receptor-selective ligands. The binding profile of [(125)I]Tyr(3)-octreotide was different from that of [(125)I]LTT-SRIF-28, [(125)I]CGP 23996 and [(125)I]Tyr(10)-cortistatin-14. The sst(5/1) receptor-selective ligand L-817,818 identified two binding sites, one with subnanomolar affinity (sst(5) receptors) and one with micromolar affinity (sst(2) receptors); however, the proportions were different: 70 - 80% high affinity with [(125)I]LTT-SRIF-28, [(125)I]CGP 23996, [(125)I]Tyr(10)-cortistatin-14, but only 20% with [(125)I]Tyr(3)-octreotide. 4. SRIF analogues inhibited the forskolin-stimulated cAMP levels depending on concentration. sst(2/5) receptor-selective ligands were highly potent, whereas sst(1/3/4) receptor-selective ligands had no significant effects. The sst(2) receptor antagonist D-Tyr(8)-CYN 154806 competitively antagonised the effects of SRIF-14 and sst(2) receptor-preferring agonists, but not those of L-817,818. 5. The complex binding properties of SRIF receptor analogues indicate that sst(2) and sst(5) receptors are the predominant SRIF receptors expressed on AtT-20 cell membranes with no or only negligible presence of sst(1), sst(3) and sst(4) receptors. In the functional studies using cAMP accumulation, only sst(2) and sst(5) receptors appear to play a role. However, the "predominant" receptor appears to be the sst(2) receptor, although sst(5) receptors can also mediate the effect, when the ligand is not able to activate sst(2) receptors. This clearly adds flexibility to SRIF-mediated functional effects and suggests that the physiological role of SRIF and its analogues may be mediated preferentially via one subtype over another.
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Affiliation(s)
- Davide Cervia
- Dipartimento di Fisiologia e Biochimica ‘G. Moruzzi', Università di Pisa, 56127 Pisa, Italy
- Nervous System Research, Novartis Pharma AG, CH-4002 Basel, Switzerland
| | - Caroline Nunn
- Nervous System Research, Novartis Pharma AG, CH-4002 Basel, Switzerland
| | | | | | - Edi Schuepbach
- Nervous System Research, Novartis Pharma AG, CH-4002 Basel, Switzerland
| | - Daniel Hoyer
- Nervous System Research, Novartis Pharma AG, CH-4002 Basel, Switzerland
- Author for correspondence:
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