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Bonache MA, Alaimo A, Malo C, Millet O, Villarroel A, González-Muñiz R. Clicked bis-PEG-peptide conjugates for studying calmodulin-Kv7.2 channel binding. Org Biomol Chem 2014; 12:8877-87. [DOI: 10.1039/c4ob01338g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Small bis-conjugates helix A329–350-PEG-triazole-PEG-helix B508–526 (41 residues), prepared through click chemistry of PEGylated peptide derivatives, bind to CaM with nanomolar affinity, behaving as mimics of the Kv7.2 native fragment (239 residues).
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Gandía J, Fernández-Dueñas V, Morató X, Caltabiano G, González-Muñiz R, Pardo L, Stagljar I, Ciruela F. The Parkinson's disease-associated GPR37 receptor-mediated cytotoxicity is controlled by its intracellular cysteine-rich domain. J Neurochem 2013; 125:362-72. [PMID: 23398388 DOI: 10.1111/jnc.12196] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 02/06/2013] [Accepted: 02/06/2013] [Indexed: 12/13/2022]
Abstract
GPR37, also known as parkin-associated endothelin-like receptor (Pael-R), is an orphan G protein-coupled receptor (GPCR) that aggregates intracellularly in a juvenile form of Parkinson's disease. However, little is known about the structure or function of this receptor. Here, in order to better understand the functioning of this receptor, we focused on the GPR37 C-terminal tail, in particular on a cystein-enriched region. Thus, we aimed to reveal the role of these residues on receptor plasma membrane expression and function, and also whether the presence of this cysteine-rich domain is linked to the previously described receptor-mediated cytotoxicity. Interestingly, while the deletion of six cysteine residues within this region did not affect receptor internalization it promoted GPR37 plasma membrane expression and signaling. Furthermore, the removal of the C-terminal cysteine-rich domain protected against GPR37-mediated apoptosis and cell death. Overall, we identified a GPR37 domain, namely the C-terminal tail cysteine-rich domain, which played a critical role in receptor cell surface expression, function and GPR37-mediated cytotoxicity. These results might contribute to better comprehend the pathophysiology (i.e. in Parkinson's disease) of this rather unknown member of the GPCR family.
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Pérez-Faginas P, Aranda MT, García-López MT, Infantes L, Fernández-Carvajal A, González-Ros JM, Ferrer-Montiel A, González-Muñiz R. Highly functionalized 1,2-diamino compounds through reductive amination of amino acid-derived β-keto esters. PLoS One 2013; 8:e53231. [PMID: 23308167 PMCID: PMC3538761 DOI: 10.1371/journal.pone.0053231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 11/26/2012] [Indexed: 11/30/2022] Open
Abstract
1,2-Diamine derivatives are valuable building blocks to heterocyclic compounds and important precursors of biologically relevant compounds. In this respect, amino acid-derived β–keto esters are a suitable starting point for the synthesis of β,γ–diamino ester derivatives through a two-step reductive amination procedure with either simple amines or α–amino esters. AcOH and NaBH3CN are the additive and reducing agents of choice. The stereoselectivity of the reaction is still an issue, due to the slow imine-enamine equilibria through which the reaction occurs, affording mixtures of diastereoisomers that can be chromatographically separated. Transformation of the β,γ–diamino esters into pyrrolidinone derivatives allows the configuration assignment of the linear compounds, and constitutes an example of their potential application in the generation of molecular diversity.
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García-Aranda MI, González-López S, Santiveri CM, Gagey-Eilstein N, Reille-Seroussi M, Martín-Martínez M, Inguimbert N, Vidal M, García-López MT, Jiménez MA, González-Muñiz R, Pérez de Vega MJ. Helical peptides from VEGF and Vammin hotspots for modulating the VEGF–VEGFR interaction. Org Biomol Chem 2013; 11:1896-905. [DOI: 10.1039/c3ob27312a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Núñez-Villanueva D, Infantes L, García-López MT, González-Muñiz R, Martín-Martínez M. Azepane Quaternary Amino Acids As Effective Inducers of 310 Helix Conformations. J Org Chem 2012; 77:9833-9. [DOI: 10.1021/jo301379r] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ferrer-Montiel A, Fernández-Carvajal A, Planells-Cases R, Fernández-Ballester G, González-Ros JM, Messeguer A, González-Muñiz R. Advances in modulating thermosensory TRP channels. Expert Opin Ther Pat 2012; 22:999-1017. [PMID: 22835143 DOI: 10.1517/13543776.2012.711320] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Thermosensory channels are a subfamily of the transient receptor potential (TRP) channel family that are activated by changes in the environmental temperature. These channels, known as thermoTRPs, cover the entire spectrum of temperatures, from noxious cold (< 15°C) to injurious heat (> 42°C). In addition, dysfunction of these channels contributes to the thermal hypersensitivity that accompanies painful conditions. Moreover, because of their wide tissue and cellular distribution, thermoTRPs are also involved in the pathophysiology of several diseases, from inflammation to cancer. AREAS COVERED Although the number of thermoTRPs is increasing with the identification of novel members such as TRPM3, we will cover the recent advances in the pharmacology of the classical thermosensory channels, namely TRPV1, TRPV2, TRPV3, TRPV4, TRPM8 and TRPA1. This review will focus on the therapeutic progress carried out for all these channels and will highlight the tenet that TRPV1, TRPM8 and TRPA1 are the most exploited channels, and that the interest on TRPV3 and TRPV4 is growing with the first TRPV3 antagonist that moves into Phase-II clinical trials. In contrast, the pharmacology of TRPV2 is yet in its infancy. EXPERT OPINION Despite the tremendous academic and industrial investment to develop therapeutic modulators of thermoTRPs, it apparently seems that we are still far from the first successful product, although hope is maintained high for all compounds currently in clinical trials. A major concern has been the appearance of side effects. A better knowledge of the thermosensory protein networks (signal-plexes), along with the application of system biology approaches may provide novel strategies to modulate thermoTRPs activity with improved therapeutic index. A case in point is TRPV1, where acting on interacting proteins is providing new therapeutic opportunities.
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Baeza JL, de la Torre BG, Santiveri CM, Almeida RD, García-López MT, Gerona-Navarro G, Jaffrey SR, Jiménez MÁ, Andreu D, González-Muñiz R, Martín-Martínez M. Cyclic amino acid linkers stabilizing key loops of brain derived neurotrophic factor. Bioorg Med Chem Lett 2011; 22:444-8. [PMID: 22119467 DOI: 10.1016/j.bmcl.2011.10.107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 10/28/2011] [Accepted: 10/30/2011] [Indexed: 10/15/2022]
Abstract
Based on β-turn-like BDNF loops 2 and 4, involved in receptor interaction, cyclic peptide replicas were designed, synthesized and tested. In addition to the native turn residues, the cyclic peptides include a linker unit between the N- and C-termini, selected by molecular modeling among various non-proteinogenic cyclic amino acids. NMR conformational studies showed that most of the cyclic peptides were able to adopt turn-like structures. Several of the analogues displayed significant inhibition of the BDNF-induced TrkB receptor phosphorylation, and hence could be useful templates for developing improved antagonists for this receptor.
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Gerona-Navarro G, González-Muñiz R, Fernández-Carvajal A, González-Ros JM, Ferrer-Montiel A, Carreño C, Albericio F, Royo M. Solid-phase synthesis of a library of amphipatic hydantoins. Discovery of new hits for TRPV1 blockade. ACS COMBINATORIAL SCIENCE 2011; 13:458-65. [PMID: 21671576 PMCID: PMC3296451 DOI: 10.1021/co1000986] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Some heterocyclic systems, called privileged scaffolds, appear frequently in bioactive products and marketed drugs. The combination of a recognized privileged scaffold (hydantoin) and a functional group with high incidence in bioactive molecules (guanidine) guided the design of a library of amphipatic compounds, which allowed the discovery of novel TRPV1 ion channel blockers. The library was synthesized by parallel solid-phase synthesis from an orthogonally protected resin-bound Lys-Lys skeleton. Key steps of the synthetic procedure were the construction of the hydantoin ring, by reaction of the N-terminal amino group with N,N-disuccinimidyl carbonate (DSC) and subsequent base-induced cyclization, and the guanidinylation of the C-terminal Lys side-chain after removal of the Alloc protecting-group. The preliminary biological studies have allowed the identification of some of the key structural features directing the blockage of capsaicin-induced Ca(2+) influx through TRPV1 channels, particularly, the strong preference showed for highly lipophilic acyl groups and substituted guanidine moieties. Active compounds based on this new pharmacophoric scaffold that display in vitro and in vivo inhibitory activity.
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Doménech R, Bocanegra R, González-Muñiz R, Gómez J, Mateu MG, Neira JL. Larger Helical Populations in Peptides Derived from the Dimerization Helix of the Capsid Protein of HIV-1 Results in Peptide Binding toward Regions Other than the “Hotspot” Interface. Biomacromolecules 2011; 12:3252-64. [DOI: 10.1021/bm2007168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Núñez-Villanueva D, Bonache MÁ, Infantes L, García-López MT, Martín-Martínez M, González-Muñiz R. Quaternary α,α-2-Oxoazepane α-Amino Acids: Synthesis from Ornithine-Derived β-Lactams and Incorporation into Model Dipeptides. J Org Chem 2011; 76:6592-603. [DOI: 10.1021/jo200894d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zaccaro L, García-López MT, González-Muñiz R, García-Martínez C, Ferrer-Montiel A, Albericio F, Royo M. TRPV1 modulators: Structure–activity relationships using a rational combinatorial approach. Bioorg Med Chem Lett 2011; 21:3541-5. [DOI: 10.1016/j.bmcl.2011.04.141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2011] [Revised: 04/26/2011] [Accepted: 04/29/2011] [Indexed: 01/09/2023]
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García-Aranda MI, Marrero P, Gautier B, Martín-Martínez M, Inguimbert N, Vidal M, García-López MT, Jiménez MA, González-Muñiz R, Vega MJPD. Parallel solid-phase synthesis of a small library of linear and hydrocarbon-bridged analogues of VEGF81–91: Potential biological tools for studying the VEGF/VEGFR-1 interaction. Bioorg Med Chem 2011; 19:1978-86. [DOI: 10.1016/j.bmc.2011.01.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 01/24/2011] [Accepted: 01/27/2011] [Indexed: 11/26/2022]
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Santiveri CM, Pérez de Vega MJ, González-Muñiz R, Jiménez MA. Trp-Trp pairs as β-hairpin stabilisers: Hydrogen-bonded versus non-hydrogen-bonded sites. Org Biomol Chem 2011; 9:5487-92. [DOI: 10.1039/c1ob05353a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pérez-Faginas P, Aranda MT, García-López MT, Snoeck R, Andrei G, Balzarini J, González-Muñiz R. Synthesis and SAR studies on azetidine-containing dipeptides as HCMV inhibitors. Bioorg Med Chem 2010; 19:1155-61. [PMID: 21256035 PMCID: PMC7127091 DOI: 10.1016/j.bmc.2010.12.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Accepted: 12/23/2010] [Indexed: 12/02/2022]
Abstract
SAR studies on an azetidine-containing dipeptide prototype inhibitor of HCMV are described. Three series of structurally modified analogues, involving substitutions at the N- and C-terminus, and at the C-terminal side-chain were synthesized and evaluated for antiviral activity. Aliphatic or no substituents at the C-carboxamide group, an aliphatic C-terminal side-chain, as well as a benzyloxycarbonyl moiety at the N-terminus were absolute requirements for anti-HCMV activity. The conformational restriction induced by the 2-azetidine residue into the dipeptide derivatives, identified by 1H NMR as a γ-type reverse turn, seems to have influence on the activity of these molecules.
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Baeza JL, Bonache MÁ, García-López MT, González-Muñiz R, Martín-Martínez M. 2-Alkyl-2-carboxyazetidines as γ-turn inducers: incorporation into neurotrophin fragments. Amino Acids 2010; 39:1299-307. [DOI: 10.1007/s00726-010-0569-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Accepted: 03/13/2010] [Indexed: 10/19/2022]
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Pérez de Vega MJ, García-Aranda MI, González-Muñiz R. A role for ring-closing metathesis in medicinal chemistry: Mimicking secondary architectures in bioactive peptides. Med Res Rev 2010; 31:677-715. [DOI: 10.1002/med.20199] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Baeza JL, Gerona-Navarro G, Thompson K, Pérez de Vega MJ, Infantes L, García-López MT, González-Muñiz R, Martín-Martínez M. Further Evidence for 2-Alkyl-2-carboxyazetidines as γ-Turn Inducers. J Org Chem 2009; 74:8203-11. [DOI: 10.1021/jo901712x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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García-Aranda MI, González-Muñiz R, García-López MT, Pérez de Vega MJ. Diimine Reduction of C=C Double Bonds: Scope and Limitations of the Application to Solid-Phase Peptide Synthesis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mirassou Y, Santiveri CM, Pérez de Vega MJ, González-Muñiz R, Jiménez MA. Disulfide Bonds versus Trp⋅⋅⋅Trp Pairs in Irregular β-Hairpins: NMR Structure of Vammin Loop 3-Derived Peptides as a Case Study. Chembiochem 2009; 10:902-10. [DOI: 10.1002/cbic.200800834] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pérez-Faginas P, Aranda MT, Coady L, García-López MT, González-Muñiz R. Simple, Highly Enantioselective Access to Quaternary 1,3,4,4-Tetrasubstituted β-Lactams from Amino Acids: A Solid-Phase Approach. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800432] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Pérez de Vega MJ, Baeza JL, García-López MT, Vila-Perelló M, Jiménez-Castells C, Simón AM, Frechilla D, del Río J, Gutiérrez-Gallego R, Andreu D, González-Muñiz R. Synthesis and biological properties of β-turned Aβ31–35 constrained analogues. Bioorg Med Chem Lett 2008; 18:2078-82. [DOI: 10.1016/j.bmcl.2008.01.092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 01/23/2008] [Accepted: 01/24/2008] [Indexed: 10/22/2022]
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Baeza JL, Gerona-Navarro G, Pérez de Vega J, García-López MT, González-Muñiz R, Martín-Martínez M. Azetidine-Derived Amino Acids versus Proline Derivatives. Alternative Trends in Reverse Turn Induction. J Org Chem 2008; 73:1704-15. [DOI: 10.1021/jo701746w] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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García-López MT, González-Muñiz R, Martín-Martínez M, Herranz R. Strategies for design of non peptide CCK1R agonist/antagonist ligands. Curr Top Med Chem 2007; 7:1180-94. [PMID: 17584140 DOI: 10.2174/156802607780960537] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This review mainly covers last five year literature on CCK1R agonists and antagonists. These CCK1R ligands have been found following the two usual and complementary strategies for drug discovery: rational design based on structure activity relationships on the CCK-7 and CCK-4 peptide sequences of the endogenous ligands and random screening of diverse compounds, followed by hit optimization. The first group includes: chimeric bifunctional opioid/CCK peptides, designed as opioid agonists with balanced CCK1R/CCK2R antagonist activity for the treatment of neuropathic pain, antagonist and agonist dipeptoids, and 1,3-dioxoperhydropyrido[1,2-c]pyrimidine- and anthranilic acid-based antagonists. Among the ligands derived from random screening, a few new 1,4-benzodiazepine-, 1,5-benzodiazepine-, and five member ring heterocycle-based CCK1R ligands have been reported. Finally, taking into account the importance of receptor mapping studies for ligand optimization and future precise de novo receptor structure-based design of new selective and more effective ligands, the most significant conclusions of these studies have also been reviewed.
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Baeza JL, Gerona-Navarro G, Pérez de Vega MJ, García-López MT, González-Muñiz R, Martín-Martínez M. 2-Alkyl-2-carboxy-azetidines as scaffolds for the induction of γ-turns. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.03.126] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Patiño-Molina R, Cubero-Lajo I, Pérez de Vega MJ, García-López MT, González-Muñiz R. Chiral 1,3,6-trisubstituted 2,4-dioxohexahydropyrimidines: a convenient stereoselective synthesis from aspartic acid derivatives. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.03.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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