1
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Linciano P, Sorbi C, Rossino G, Rossi D, Marsala A, Denora N, Bedeschi M, Marino N, Miserocchi G, Dondio G, Peviani M, Tesei A, Collina S, Franchini S. Novel S1R agonists counteracting NMDA excitotoxicity and oxidative stress: A step forward in the discovery of neuroprotective agents. Eur J Med Chem 2023; 249:115163. [PMID: 36716640 DOI: 10.1016/j.ejmech.2023.115163] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/28/2023]
Abstract
Sigma-1 receptor (S1R) has been considered a promising therapeutic target for several neurodegenerative diseases and S1R agonists have shown neuroprotective activity against glutamate excitotoxicity and oxidative stress. Starting from a previously identified low nanomolar S1R agonist, in this work we prepared and tested novel benzylpiperidine/benzylpiperazine-based compounds designed by applying a ring opening strategy. Among them, 4-benzyl-1-(2-phenoxyethyl)piperidine 6b (S1R Ki = 0.93 nM) and 4-benzyl-1-(3-phenoxypropyl)piperidine 8b (S1R Ki = 1.1 nM) emerged as high affinity S1R ligands and showed selectivity over S2R and N-methyl-d-aspartate receptor (NMDAR). Candidate compounds behaved as potent S1R agonists being able to enhance the neurite outgrowth induced by nerve growth factor (NGF) in PC12 cell lines. In SH-SY5Y neuroblastoma cell lines they exhibited a neuroprotective effect against rotenone- and NMDA-mediated toxic insults. The neuroprotective activity of 6b and 8b was reverted by co-treatment with an S1R antagonist, PB212. Compounds 6b and 8b were tested for cytotoxicity in-vitro against three human cancer cell lines (A549, LoVo and Panc-1) and in-vivo zebrafish model, resulting in a good efficacy/safety profile, comparable or superior to the reference drug memantine. Overall, these results encourage further preclinical investigations of 6b and 8b on in-vivo models of neurodegenerative diseases.
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Affiliation(s)
- Pasquale Linciano
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Claudia Sorbi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125, Modena, Italy
| | - Giacomo Rossino
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Andrea Marsala
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100, Pavia, Italy
| | - Nunzio Denora
- Dipartimento di Farmacia - Scienze del Farmaco, Università, degli Studi di Bari Aldo Moro, 70126, Bari, Italy
| | - Martina Bedeschi
- BioScience Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014, Meldola, Italy
| | - Noemi Marino
- BioScience Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014, Meldola, Italy
| | - Giacomo Miserocchi
- BioScience Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014, Meldola, Italy
| | - Giulio Dondio
- Aphad SrL, Via della Resistenza, 65, Buccinasco, 20090, Italy
| | - Marco Peviani
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100, Pavia, Italy
| | - Anna Tesei
- BioScience Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014, Meldola, Italy
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Silvia Franchini
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125, Modena, Italy.
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2
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Rossino G, Rui M, Linciano P, Rossi D, Boiocchi M, Peviani M, Poggio E, Curti D, Schepmann D, Wünsch B, González-Avendaño M, Vergara-Jaque A, Caballero J, Collina S. Bitopic Sigma 1 Receptor Modulators to Shed Light on Molecular Mechanisms Underpinning Ligand Binding and Receptor Oligomerization. J Med Chem 2021; 64:14997-15016. [PMID: 34624193 DOI: 10.1021/acs.jmedchem.1c00886] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The sigma 1 receptor (S1R) is an enigmatic ligand-operated chaperone involved in many important biological processes, and its functions are not fully understood yet. Herein, we developed a novel series of bitopic S1R ligands as versatile tools to investigate binding processes, allosteric modulation, and the oligomerization mechanism. These molecules have been prepared in the enantiopure form and subjected to a preliminary biological evaluation, while in silico investigations helped to rationalize the results. Compound 7 emerged as the first bitopic S1R ligand endowed with low nanomolar affinity (Ki = 2.6 nM) reported thus far. Computational analyses suggested that 7 may stabilize the open conformation of the S1R by simultaneously binding the occluded primary binding site and a peripheral site on the cytosol-exposed surface. These findings pave the way to new S1R ligands with enhanced activity and/or selectivity, which could also be used as probes for the identification of a potential allosteric site.
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Affiliation(s)
- Giacomo Rossino
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Marta Rui
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Pasquale Linciano
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Massimo Boiocchi
- Centro Grandi Strumenti, University of Pavia, via Bassi 21, 27100 Pavia, Italy
| | - Marco Peviani
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Elena Poggio
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Daniela Curti
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Correnstraße 48, 48149 Münster, Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Correnstraße 48, 48149 Münster, Germany
| | - Mariela González-Avendaño
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Ariela Vergara-Jaque
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Julio Caballero
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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3
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Pellavio G, Rossino G, Gastaldi G, Rossi D, Linciano P, Collina S, Laforenza U. Sigma-1 Receptor Agonists Acting on Aquaporin-Mediated H 2O 2 Permeability: New Tools for Counteracting Oxidative Stress. Int J Mol Sci 2021; 22:9790. [PMID: 34575952 PMCID: PMC8467392 DOI: 10.3390/ijms22189790] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 12/13/2022] Open
Abstract
Sigma1 Receptor (S1R) is involved in oxidative stress, since its activation is triggered by oxidative or endoplasmic reticulum stress. Since specific aquaporins (AQP), called peroxiporins, play a relevant role in controlling H2O2 permeability and ensure reactive oxygen species wasted during oxidative stress, we studied the effect of S1R modulators on AQP-dependent water and hydrogen peroxide permeability in the presence and in the absence of oxidative stress. Applying stopped-flow light scattering and fluorescent probe methods, water and hydrogen peroxide permeability in HeLa cells have been studied. Results evidenced that S1R agonists can restore water permeability in heat-stressed cells and the co-administration with a S1R antagonist totally counteracted the ability to restore the water permeability. Moreover, compounds were able to counteract the oxidative stress of HeLa cells specifically knocked down for S1R. Taken together these results support the hypothesis that the antioxidant mechanism is mediated by both S1R and AQP-mediated H2O2 permeability. The finding that small molecules can act on both S1R and AQP-mediated H2O2 permeability opens a new direction toward the identification of innovative drugs able to regulate cell survival during oxidative stress in pathologic conditions, such as cancer and degenerative diseases.
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Affiliation(s)
- Giorgia Pellavio
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, I-27100 Pavia, Italy; (G.P.); (G.G.)
| | - Giacomo Rossino
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, I-27100 Pavia, Italy; (G.R.); (D.R.); (P.L.); (S.C.)
| | - Giulia Gastaldi
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, I-27100 Pavia, Italy; (G.P.); (G.G.)
- Centre for Health Technology (CHT), University of Pavia, I-27100 Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, I-27100 Pavia, Italy; (G.R.); (D.R.); (P.L.); (S.C.)
| | - Pasquale Linciano
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, I-27100 Pavia, Italy; (G.R.); (D.R.); (P.L.); (S.C.)
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, I-27100 Pavia, Italy; (G.R.); (D.R.); (P.L.); (S.C.)
| | - Umberto Laforenza
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, I-27100 Pavia, Italy; (G.P.); (G.G.)
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4
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Park JS, Ko K, Kim SH, Lee JK, Park JS, Park K, Kim MR, Kang K, Oh DC, Kim SY, Yumnam S, Kwon HC, Shin J. Tropolone-Bearing Sesquiterpenes from Juniperus chinensis: Structures, Photochemistry and Bioactivity. JOURNAL OF NATURAL PRODUCTS 2021; 84:2020-2027. [PMID: 34236881 DOI: 10.1021/acs.jnatprod.1c00321] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The tropolone-bearing sesquiterpenes juniperone A (1) and norjuniperone A (2) were isolated from the folk medicinal plant Juniperus chinensis, and their structures were determined by a combination of spectroscopic and crystallographic methods. Photojuniperones A1 (3) and A2 (4), bearing bicyclo[3,2,0]heptadienones derived from tropolone, were photochemically produced and structurally identified by spectroscopic methods. Predicted by the machine learning-based assay, 1 significantly inhibited the action of tyrosinase. The new compounds also inhibited lipid accumulation and enhanced the extracellular glycerol excretion.
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Affiliation(s)
- Jae Sung Park
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Keebeom Ko
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Seong-Hwan Kim
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Jae Kyun Lee
- Neuro-Medicine, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Jin-Soo Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Keunwan Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Mi Ri Kim
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Kyungsu Kang
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sun Yeou Kim
- Gachon Institute of Pharmaceutical Science, Gachon University, 191, Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Silvia Yumnam
- Gachon Institute of Pharmaceutical Science, Gachon University, 191, Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangneung 25451, Republic of Korea
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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5
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Zhao QK, Wu X, Li LP, Yang F, Xie JH, Zhou QL. Asymmetric Hydrogenation of β-Aryl Alkylidene Malonate Esters: Installing an Ester Group Significantly Increases the Efficiency. Org Lett 2021; 23:1675-1680. [PMID: 33599130 DOI: 10.1021/acs.orglett.1c00093] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report a practical method for efficient asymmetric hydrogenation of β-aryl alkylidene malonates. With a site-specifically tailored chiral spiro iridium catalyst, a series of β-aryl alkylidene malonate esters were hydrogenated to afford chiral malonate esters with good to excellent enantioselectivities (up to 99% ee) and high turnover numbers (up to 19000). The results showed that installing an ester group in α,β-unsaturated carboxylic esters significantly increased the efficiency of their asymmetric hydrogenation reactions.
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Affiliation(s)
- Qian-Kun Zhao
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiong Wu
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lin-Ping Li
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Fan Yang
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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6
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Vigani B, Valentino C, Cavalloro V, Catenacci L, Sorrenti M, Sandri G, Bonferoni MC, Bozzi C, Collina S, Rossi S, Ferrari F. Gellan-Based Composite System as a Potential Tool for the Treatment of Nervous Tissue Injuries: Cross-Linked Electrospun Nanofibers Embedded in a RC-33-Loaded Freeze-Dried Matrix. Pharmaceutics 2021; 13:pharmaceutics13020164. [PMID: 33530643 PMCID: PMC7912322 DOI: 10.3390/pharmaceutics13020164] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 12/31/2022] Open
Abstract
Injuries to the nervous system affect more than one billion people worldwide, and dramatically impact on the patient’s quality of life. The present work aimed to design and develop a gellan gum (GG)-based composite system for the local delivery of the neuroprotective sigma-1 receptor agonist, 1-[3-(1,1′-biphen)-4-yl] butylpiperidine (RC-33), as a potential tool for the treatment of tissue nervous injuries. The system, consisting of cross-linked electrospun nanofibers embedded in a RC-33-loaded freeze-dried matrix, was designed to bridge the lesion gap, control drug delivery and enhance axonal regrowth. The gradual matrix degradation should ensure the progressive interaction between the inner fibrous mat and the surrounding cellular environment. Nanofibers, prepared by electrospinning polymeric solutions containing GG, two different grades of poly (ethylene oxide) and poloxamer, were cross-linked with calcium ions. GG-based matrices, loaded with different amounts of RC-33, were prepared by freeze-drying. Dialysis studies and solid-state characterization pointed out the formation of an interaction product between GG and RC-33. RC-33-loaded freeze-dried matrices were characterized by the capability to absorb a high buffer content, forming a gel with marked viscoelastic properties, and by RC-33 controlled release properties. The presence of cross-linked nanofibers increased matrix mechanical resistance.
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7
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Cortesi M, Zamagni A, Pignatta S, Zanoni M, Arienti C, Rossi D, Collina S, Tesei A. Pan-Sigma Receptor Modulator RC-106 Induces Terminal Unfolded Protein Response In In Vitro Pancreatic Cancer Model. Int J Mol Sci 2020; 21:ijms21239012. [PMID: 33260926 PMCID: PMC7734580 DOI: 10.3390/ijms21239012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Pancreatic cancer (PC) remains one of the most lethal cancers worldwide. Sigma receptors (SRs) have been proposed as cancer therapeutic targets. Their main localization suggests they play a potential role in ER stress and in the triggering of the unfolded protein response (UPR). Here, we investigated the mechanisms of action of RC-106, a novel pan-SR modulator, to characterize therapeutically exploitable role of SRs in tumors. Two PC cell lines were used in all the experiments. Terminal UPR activation was evaluated by quantifying BiP, ATF4 and CHOP by Real-Time qRT-PCR, Western Blot, immunofluorescence and confocal microscopy. Cell death was studied by flow cytometry. Post-transcriptional gene silencing was performed to study the interactions between SRs and UPR key proteins. RC-106 activated ER stress sensors in a dose- and time-dependent manner. It also induced ROS production accordingly with ATF4 upregulation at the same time reducing cell viability of both cell lines tested. Moreover, RC-106 exerted its effect through the induction of the terminal UPR, as shown by the activation of some of the main transducers of this pathway. Post-transcriptional silencing studies confirmed the connection between SRs and these key proteins. Overall, our data highlighted a key role of SRs in the activation of the terminal UPR pathway, thus indicating pan-SR ligands as candidates for targeting the UPR in pancreatic cancer.
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Affiliation(s)
- Michela Cortesi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
- Correspondence: (M.C.); (A.T.)
| | - Alice Zamagni
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
| | - Sara Pignatta
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
| | - Michele Zanoni
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
| | - Chiara Arienti
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy; (D.R.); (S.C.)
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, 27100 Pavia, Italy; (D.R.); (S.C.)
| | - Anna Tesei
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy; (A.Z.); (S.P.); (M.Z.); (C.A.)
- Correspondence: (M.C.); (A.T.)
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8
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Vigani B, Rossi S, Sandri G, Bonferoni MC, Rui M, Collina S, Fagiani F, Lanni C, Ferrari F. Dual-Functioning Scaffolds for the Treatment of Spinal Cord Injury: Alginate Nanofibers Loaded with the Sigma 1 Receptor (S1R) Agonist RC-33 in Chitosan Films. Mar Drugs 2019; 18:E21. [PMID: 31887983 PMCID: PMC7024184 DOI: 10.3390/md18010021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/19/2019] [Accepted: 12/23/2019] [Indexed: 12/14/2022] Open
Abstract
The present work proposed a novel therapeutic platform with both neuroprotective and neuroregenerative potential to be used in the treatment of spinal cord injury (SCI). A dual-functioning scaffold for the delivery of the neuroprotective S1R agonist, RC-33, to be locally implanted at the site of SCI, was developed. RC-33-loaded fibers, containing alginate (ALG) and a mixture of two different grades of poly(ethylene oxide) (PEO), were prepared by electrospinning. After ionotropic cross-linking, fibers were incorporated in chitosan (CS) films to obtain a drug delivery system more flexible, easier to handle, and characterized by a controlled degradation rate. Dialysis equilibrium studies demonstrated that ALG was able to form an interaction product with the cationic RC-33 and to control RC-33 release in the physiological medium. Fibers loaded with RC-33 at the concentration corresponding to 10% of ALG maximum binding capacity were incorporated in films based on CS at two different molecular weights-low (CSL) and medium (CSM)-solubilized in acetic (AA) or glutamic (GA) acid. CSL- based scaffolds were subjected to a degradation test in order to investigate if the different CSL salification could affect the film behavior when in contact with media that mimic SCI environment. CSL AA exhibited a slower biodegradation and a good compatibility towards human neuroblastoma cell line.
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Affiliation(s)
- Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Maria Cristina Bonferoni
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Marta Rui
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Francesca Fagiani
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
- Scuola Universitaria IUSS, Istituto Universitario di Studi Superiori, 27100 Pavia, Italy
| | - Cristina Lanni
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Franca Ferrari
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
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9
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Rossino G, Orellana I, Caballero J, Schepmann D, Wünsch B, Rui M, Rossi D, González-Avendaño M, Collina S, Vergara-Jaque A. New Insights into the Opening of the Occluded Ligand-Binding Pocket of Sigma1 Receptor: Binding of a Novel Bivalent RC-33 Derivative. J Chem Inf Model 2019; 60:756-765. [DOI: 10.1021/acs.jcim.9b00649] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Giacomo Rossino
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Ivana Orellana
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Julio Caballero
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Münster, Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Münster, Germany
| | - Marta Rui
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Mariela González-Avendaño
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Ariela Vergara-Jaque
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
- Multidisciplinary Scientific Nucleus, Universidad de Talca, 1 Poniente, 1141 Talca, Chile
- Millennium Nucleus of Ion Channels-associated Diseases (MiNICAD), Santiago, Chile
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10
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Velázquez-Libera JL, Rossino G, Navarro-Retamal C, Collina S, Caballero J. Docking, Interaction Fingerprint, and Three-Dimensional Quantitative Structure-Activity Relationship (3D-QSAR) of Sigma1 Receptor Ligands, Analogs of the Neuroprotective Agent RC-33. Front Chem 2019; 7:496. [PMID: 31355187 PMCID: PMC6637851 DOI: 10.3389/fchem.2019.00496] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/27/2019] [Indexed: 01/25/2023] Open
Abstract
The human Sigma1 receptor (S1R), which has been identified as a target with an important role in neuropsychological disorders, was first crystallized 3 years ago. Since S1R structure has no relation with another previous crystallized structures, the presence of the new crystal is an important hallmark for the design of agonists and antagonists against this important target. Some years ago, our group identified RC-33, a potent and selective S1R agonist, endowed with neuroprotective properties. In this work, drawing on new structural information, we studied the interactions of RC-33 and its analogs with the S1R binding site by using computational methods such as docking, interaction fingerprints, and receptor-guided alignment three dimensional quantitative structure–activity relationship (3D-QSAR). We found that RC-33 and its analogs adopted similar orientations within S1R binding site, with high similitude with orientations of the crystallized ligands; such information was used for identifying the residues involved in chemical interactions with ligands. Furthermore, the structure-activity relationship of the studied ligands was adequately described considering classical QSAR tests. All relevant aspects of the interactions between the studied compounds and S1R were covered here, through descriptions of orientations, binding interactions, and features that influence differential affinities. In this sense, the present results could be useful in the future design of novel S1R modulators.
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Affiliation(s)
- José Luis Velázquez-Libera
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, Talca, Chile
| | - Giacomo Rossino
- Pharmaceutical and Medicinal Chemistry Section, Drug Sciences Department, Università di Pavia, Pavia, Italy
| | - Carlos Navarro-Retamal
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, Talca, Chile
| | - Simona Collina
- Pharmaceutical and Medicinal Chemistry Section, Drug Sciences Department, Università di Pavia, Pavia, Italy
| | - Julio Caballero
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, Talca, Chile
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11
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Tesei A, Cortesi M, Pignatta S, Arienti C, Dondio GM, Bigogno C, Malacrida A, Miloso M, Meregalli C, Chiorazzi A, Carozzi V, Cavaletti G, Rui M, Marra A, Rossi D, Collina S. Anti-tumor Efficacy Assessment of the Sigma Receptor Pan Modulator RC-106. A Promising Therapeutic Tool for Pancreatic Cancer. Front Pharmacol 2019; 10:490. [PMID: 31156430 PMCID: PMC6530361 DOI: 10.3389/fphar.2019.00490] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/17/2019] [Indexed: 12/18/2022] Open
Abstract
Introduction: Pancreatic cancer (PC) is one of the most lethal tumor worldwide, with no prognosis improvement over the past 20-years. The silent progressive nature of this neoplasia hampers the early diagnosis, and the surgical resection of the tumor, thus chemotherapy remains the only available therapeutic option. Sigma receptors (SRs) are a class of receptors proposed as new cancer therapeutic targets due to their over-expression in tumor cells and their involvement in cancer biology. The main localization of these receptors strongly suggests their potential role in ER unfolded protein response (ER-UPR), a condition frequently occurring in several pathological settings, including cancer. Our group has recently identified RC-106, a novel pan-SR modulator with good in vitro antiproliferative activities toward a panel of different cancer cell lines. In the present study, we investigated the in vitro properties and pharmacological profile of RC-106 in PC cell lines with the aim to identify a potential lead candidate for the treatment of this tumor. Methods: Pancreatic cancer cell lines Panc-1, Capan-1, and Capan-2 have been used in all experiments. S1R and TMEM97/S2R expression in PC cell lines was quantified by Real-Time qRT-PCR and Western Blot experiments. MTS assay was used to assess the antiproliferative effect of RC-106. The apoptotic properties of RC-106 was evaluated by TUNEL and caspase activation assays. GRP78/BiP, ATF4, and CHOP was quantified to evaluate ER-UPR. Proteasome activity was investigated by a specific fluorescent-based assay. Scratch wound healing assay was used to asses RC-106 effect on cell migration. In addition, we delineated the in vivo pharmacokinetic profile and pancreas distribution of RC-106 in male CD-1 mice. Results: Panc-1, Capan-1, and Capan-2 express both SRs. RC-106 exerts an antiproliferative and pro-apoptotic effect in all examined cell lines. Cells exposure to RC-106 induces the increase of the expression of ER-UPR related proteins, and the inhibition of proteasome activity. Moreover, RC-106 is able to decrease PC cell lines motility. The in vivo results show that RC-106 is more concentrated in pancreas than plasma. Conclusion: Overall, our data evidenced that the pan-SR modulator RC-106 is an optimal candidate for in vivo studies in animal models of PC.
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Affiliation(s)
- Anna Tesei
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRCCS), Meldola, Italy
| | - Michela Cortesi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRCCS), Meldola, Italy
| | - Sara Pignatta
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRCCS), Meldola, Italy
| | - Chiara Arienti
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRCCS), Meldola, Italy
| | | | | | - Alessio Malacrida
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Mariarosaria Miloso
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Cristina Meregalli
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Alessia Chiorazzi
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Valentina Carozzi
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Guido Cavaletti
- Experimental Neurology Unit, School of Medicine and Surgery, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Marta Rui
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia, Italy
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia, Italy
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia, Italy
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12
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Terada K, Migita K, Matsushima Y, Sugimoto Y, Kamei C, Matsumoto T, Mori M, Matsunaga K, Takata J, Karube Y. Cholinesterase inhibitor rivastigmine enhances nerve growth factor-induced neurite outgrowth in PC12 cells via sigma-1 and sigma-2 receptors. PLoS One 2018; 13:e0209250. [PMID: 30557385 PMCID: PMC6296549 DOI: 10.1371/journal.pone.0209250] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 12/03/2018] [Indexed: 01/27/2023] Open
Abstract
Rivastigmine (Riv) is a potent and selective cholinesterase (acetylcholinesterase, AChE and butyrylcholinesterase, BuChE) inhibitor developed for the treatment of Alzheimer's disease (AD). To elucidate whether Riv causes neuronal differentiation, we examined its effect on nerve growth factor (NGF)-induced neurite outgrowth in PC12 cells. At concentrations of 0-100 μM, Riv was non-toxic in PC12 cells. Riv caused dose-dependent (10-100 μM) enhancement of NGF-induced neurite outgrowth, which was completely inhibited by the TrkA antagonist GW-441756. By contrast, Riv-mediated enhancement of neurite outgrowth was not blocked by the acetylcholine receptor antagonists, scopolamine and hexamethonium. However, the sigma-1 receptor (Sig-1R) antagonist NE-100 and sigma-2 receptor (Sig-2R) antagonist SM-21 each blocked about half of the Riv-mediated enhancement of NGF-induced neurite outgrowth. Interestingly, the simultaneous application of NE-100 and SM-21 completely blocked the enhancement of NGF-induced neurite outgrowth by Riv. These findings suggest that both Sig-1R and Sig-2R play important roles in NGF-induced neurite outgrowth through TrkA and that Riv may contribute to neuronal repair via Sig-1R and Sig-2R in AD therapy.
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Affiliation(s)
- Kazuki Terada
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Keisuke Migita
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yukari Matsushima
- Faculty of Pharmaceutical Sciences, Yasuda Women’s University, Hiroshima, Japan
| | - Yumi Sugimoto
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Hyogo, Japan
| | - Chiaki Kamei
- Faculty of Pharmaceutical Sciences, Yasuda Women’s University, Hiroshima, Japan
| | - Taichi Matsumoto
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Masayoshi Mori
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kazuhisa Matsunaga
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Jiro Takata
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yoshiharu Karube
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
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13
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Rui M, Rossino G, Coniglio S, Monteleone S, Scuteri A, Malacrida A, Rossi D, Catenacci L, Sorrenti M, Paolillo M, Curti D, Venturini L, Schepmann D, Wünsch B, Liedl KR, Cavaletti G, Pace V, Urban E, Collina S. Identification of dual Sigma1 receptor modulators/acetylcholinesterase inhibitors with antioxidant and neurotrophic properties, as neuroprotective agents. Eur J Med Chem 2018; 158:353-370. [PMID: 30223122 DOI: 10.1016/j.ejmech.2018.09.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/03/2018] [Accepted: 09/04/2018] [Indexed: 12/17/2022]
Abstract
In this manuscript we report on the design, synthesis and evaluation of dual Sigma 1 Receptor (S1R) modulators/Acetylcholinesterase (AChE) inhibitors endowed with antioxidant and neurotrophic properties, potentially able to counteract neurodegeneration. The compounds based on arylalkylaminoketone scaffold integrate the pharmacophoric elements of RRC-33, a S1R modulator developed by us, donepezil, a well-known AChE inhibitor, and curcumin, a natural antioxidant compound with neuroprotective properties. A small library of compounds was synthesized and preliminary in vitro screening performed. Some compounds showed good S1R binding affinity, selectivity towards S2R and N-Methyl-d-Aspartate (NMDA) receptor, AChE relevant inhibiting activity and are potentially able to bypass the BBB, as predicted by the in silico study. For the hits 10 and 20, the antioxidant profile was assessed in SH-SY5Y human neuroblastoma cell lines by evaluating their protective effect against H2O2 cytotoxicity and reactive oxygen species (ROS) production. Tested compounds resulted effective in decreasing ROS production, thus ameliorating the cellular survival. Moreover, compounds 10 and 20 showed to be effective in promoting the neurite elongation of Dorsal Root Ganglia (DRG), thus demonstrating a promising neurotrophic activity. Of note, the tested compounds did not show any cytotoxic effect at the concentration assayed. Relying on these encouraging results, both compounds will undergo a structure optimization program for the development of therapeutic candidates for neurodegenerative diseases treatment.
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Affiliation(s)
- Marta Rui
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Giacomo Rossino
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Stefania Coniglio
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Stefania Monteleone
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; Department of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
| | - Arianna Scuteri
- School of Medicine and Surgery, University Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Alessio Malacrida
- School of Medicine and Surgery, University Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Laura Catenacci
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Milena Sorrenti
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Mayra Paolillo
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy
| | - Daniela Curti
- Department of Biology and Biotechnology "L. Spallanzani", Lab. of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Letizia Venturini
- Department of Internal Medicine and Therapeutics, University of Pavia, Via Taramelli 24, 27100 Pavia, Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149, Muenster, Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149, Muenster, Germany
| | - Klaus R Liedl
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Guido Cavaletti
- School of Medicine and Surgery, University Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Ernst Urban
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry, Pharmaceutical Technology and Pharmacological Sections, University of Pavia, Viale Taramelli 6 and 12, 27100 Pavia, Italy.
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14
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Terada K, Matsushima Y, Matsunaga K, Takata J, Karube Y, Ishige A, Chiba K. The Kampo medicine Yokukansan (YKS) enhances nerve growth factor (NGF)-induced neurite outgrowth in PC12 cells. Bosn J Basic Med Sci 2018; 18:224-233. [PMID: 28961087 PMCID: PMC6087561 DOI: 10.17305/bjbms.2017.2248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/21/2017] [Accepted: 08/21/2017] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence indicates that neurotrophic factor-like substances involved in the induction of neurotrophic factor synthesis may aid in the treatment of neurological disorders, such as Alzheimer's disease. Yokukansan (YKS), a traditional Kampo medicine, has been used for the treatment of anxiety and mood disorders. In the present study, we aimed to identify the signaling pathways associated with YKS-mediated enhancement of nerve growth factor (NGF)-induced neurite extension in rat pheochromocytoma (PC12) cells. Akt and extracellular-regulated kinase 1/2 (ERK1/2) phosphorylation levels were assessed by western blot analysis, in the presence of YKS and following the treatment with TrkA inhibitor, K252a. YKS treatment (NGF+YKS 0.5 group) enhanced NGF-induced neurite outgrowth and phosphorylation/activation of Akt and ERK1/2 in PC12 cells. Moreover, YKS-induced effects were inhibited by the treatment with the TrkA receptor antagonist K252a (NGF+YKS 0.5+K252a group); no significant difference in neurite outgrowth was observed between K252a-treated (NGF+YKS 0.5+K252a group) and NGF-K252a-treated cells (NGF+K252a group). However, neurite outgrowth in K252a-treated cells (NGF+K252a and NGF+YKS 0.5+K252a group) reached only one-third of the level in NGF-treated cells (NGF group). NGF-mediated Akt phosphorylation increased by YKS was also inhibited by K252a treatment (NGF+YKS 0.5+K252a group), but no significant difference in ERK1/2 phosphorylation was observed between NGF-YKS-K252a- and NGF-treated cells (NGF group). Our results indicate that YKS treatment enhanced NGF-induced neurite outgrowth via induction of Akt and ERK1/2 phosphorylation, following the binding of NGF to the TrkA receptor. These findings may be useful in the development of novel therapeutic strategies for the treatment of Alzheimer's disease.
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Affiliation(s)
- Kazuki Terada
- Laboratory of Drug Design and Drug Delivery, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan.
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15
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Kurciński M, Jarończyk M, Lipiński PFJ, Dobrowolski JC, Sadlej J. Structural Insights into σ₁ Receptor Interactions with Opioid Ligands by Molecular Dynamics Simulations. Molecules 2018; 23:E456. [PMID: 29463040 PMCID: PMC6017133 DOI: 10.3390/molecules23020456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 11/16/2022] Open
Abstract
Despite considerable advances over the past years in understanding the mechanisms of action and the role of the σ₁ receptor, several questions regarding this receptor remain unanswered. This receptor has been identified as a useful target for the treatment of a diverse range of diseases, from various central nervous system disorders to cancer. The recently solved issue of the crystal structure of the σ₁ receptor has made elucidating the structure-activity relationship feasible. The interaction of seven representative opioid ligands with the crystal structure of the σ₁ receptor (PDB ID: 5HK1) was simulated for the first time using molecular dynamics (MD). Analysis of the MD trajectories has provided the receptor-ligand interaction fingerprints, combining information on the crucial receptor residues and frequency of the residue-ligand contacts. The contact frequencies and the contact maps suggest that for all studied ligands, the hydrophilic (hydrogen bonding) interactions with Glu172 are an important factor for the ligands' affinities toward the σ₁ receptor. However, the hydrophobic interactions with Tyr120, Val162, Leu105, and Ile124 also significantly contribute to the ligand-receptor interplay and, in particular, differentiate the action of the agonistic morphine from the antagonistic haloperidol.
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Affiliation(s)
- Mateusz Kurciński
- Faculty of Chemistry, University of Warsaw, Pasteur Str.1, 02-093 Warsaw, Poland.
| | | | - Piotr F J Lipiński
- Department of Neuropeptides, Mossakowski Medical Research Center, Polish Academy of Sciences, 02-106 Warsaw, Poland.
| | - Jan Cz Dobrowolski
- National Medicines Institute, 30/34 Chełmska Str., 00-725 Warsaw, Poland.
| | - Joanna Sadlej
- National Medicines Institute, 30/34 Chełmska Str., 00-725 Warsaw, Poland.
- Faculty of Mathematics and Natural Sciences. Cardinal Stefan Wyszyński University,1/3 Wóycickiego Str.,01-938 Warsaw, Poland.
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16
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Kokornaczyk AK, Schepmann D, Yamaguchi J, Itami K, Laurini E, Fermeglia M, Pricl S, Wünsch B. Thiazole-Based σ 1 Receptor Ligands: Diversity by Late-Stage C-H Arylation of Thiazoles, Structure-Affinity and Selectivity Relationships, and Molecular Interactions. ChemMedChem 2017; 12:1070-1080. [PMID: 28544475 DOI: 10.1002/cmdc.201700166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/22/2017] [Indexed: 12/25/2022]
Abstract
Spirocyclic thiophene derivatives represent promising σ1 ligands with high σ1 affinity and selectivity over the σ2 subtype. To increase ligand efficiency, the thiophene ring was replaced bioisosterically by a thiazole ring, and the pyran ring was opened. Late-stage diversification by regioselective C-H arylation of thiazoles 9 a-c resulted in a set of 53 compounds with high diversity. This set of compounds was analyzed with respect to σ1 affinity, σ1 /σ2 selectivity, lipophilicity (logD7.4 ), lipophilicity-corrected ligand efficiency (LELP), and molecular target interactions. The most promising candidates were pyridyl-substituted thiazole derivatives 33 c (2-(1-benzyl-4-ethoxypiperidin-4-yl)-5-(pyridin-3-yl)thiazole) and 34 c (2-(1-benzyl-4-ethoxypiperidin-4-yl)-5-(pyridin-4-yl)thiazole), possessing low-nanomolar σ1 affinity (Ki =1.3 and 1.9 nm), high σ1 /σ2 selectivity (>1500-fold), low lipophilicity (logD7.4 =1.8) and very good ligand efficiency (LELP=5.5), indicating promising pharmacodynamics and pharmacokinetics. Molecular simulation studies, including docking and deconvolution of the free binding energy into its major components, led to decreased hydrophobic stabilization of pyridyl derivatives 33 c and 34 c, which was compensated by lower desolvation energy.
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Affiliation(s)
- Artur K Kokornaczyk
- Institut für Pharmazeutische und Medizinische Chemie der, Universität Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Dirk Schepmann
- Institut für Pharmazeutische und Medizinische Chemie der, Universität Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Erik Laurini
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
- National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 32127, Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
- National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 32127, Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
- National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 32127, Trieste, Italy
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der, Universität Münster, Corrensstraße 48, 48149, Münster, Germany
- Cells-in-Motion Cluster of Excellence (EXC 1003-CiM), Westfälische Wilhelms-Universität, Münster, Germany
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17
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The role of chirality in a set of key intermediates of pharmaceutical interest, 3-aryl-substituted-γ-butyrolactones, evidenced by chiral HPLC separation and by chiroptical spectroscopies. J Pharm Biomed Anal 2017; 144:41-51. [PMID: 28118957 DOI: 10.1016/j.jpba.2017.01.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/14/2016] [Accepted: 01/04/2017] [Indexed: 11/20/2022]
Abstract
The enantiomers of four chiral 3-aryl-substituted-γ-butyrolactones, key intermediates for the preparation of compounds of pharmaceutical interest, were successfully isolated by enantioselective chromatography, employing the Chiralpak AD-H chiral stationary phase. For all compounds the same elution order was observed, as monitored by a full set of chiroptical methods that we employed, namely ORD (optical rotatory dispersion), ECD (electronic circular dichroism, or CD in the UV range), and VCD (vibrational circular dichroism, or CD in the IR range). By density functional theory (DFT) calculations we were able to determine that the first eluted enantiomer has (S) absolute configuration in all four cases. We were able to justify the elution order by molecular docking calculations for all four enantiomeric pairs and suitable modeling of the stationary and mobile phases of the employed columns. The optimal performance of the chiroptical spectroscopies and of the DFT calculations allows us to formulate a lactone chirality rule out of the CO stretching region of the VCD spectra.
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18
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Abstract
This chapter presents the three-dimensional (3D) model of the Sigma1 receptor protein as obtained from homology modeling techniques. We show the applicability of this structure to docking-based virtual screening and discuss combined in silico/in vitro mutagenesis studies performed to validate the structural features of the Sigma1 receptor model and to qualify/quantify the prominent role of specific amino acid residues in ligand binding. The validation of the virtual 3D Sigma1 receptor model and its reliable applicability to docking-based virtual screening is of significance for rational ligand design, even in light of the recently reported crystal structure for the Sigma1 receptor.
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Affiliation(s)
- Erik Laurini
- Molecular Simulation Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
| | - Domenico Marson
- Molecular Simulation Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Simulation Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulation Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste, Via Valerio 6, 34127, Trieste, Italy.
- National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 34127, Trieste, Italy.
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19
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Rossi D, Rui M, Di Giacomo M, Schepmann D, Wünsch B, Monteleone S, Liedl KR, Collina S. Gaining in pan-affinity towards sigma 1 and sigma 2 receptors. SAR studies on arylalkylamines. Bioorg Med Chem 2017; 25:11-19. [PMID: 27838169 DOI: 10.1016/j.bmc.2016.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 09/30/2016] [Accepted: 10/06/2016] [Indexed: 11/15/2022]
Abstract
Sigma Receptor (SR) modulators are involved in different signal transduction pathways, representing important pharmacological/therapeutic tools in several pathological conditions, such as neurodegenerative diseases and cancers. To this purpose, numerous compounds have been developed in order to target selectively one of the two subtypes (S1R and S2R) as chemotherapeutic agent. However, experiments have also shown that ligands which are able to bind both SR subtypes can be useful for the diagnosis and/or the treatment of cancers. Therefore, the discovery of compounds with good affinity towards both S1R and S2R ('pan-modulators') is also of great interest and still represents a challenge up to now. For this reason, we synthesized novel arylalkylamines with the aim to obtain compounds with S1R and S2R affinity in the nM range and, by modeling quantitative structure-activity relationships (QSARs), we identified the essential structural features to obtain promising pan-compounds.
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Affiliation(s)
- Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Marta Rui
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Marcello Di Giacomo
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Muenster, Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Muenster, Germany
| | - Stefania Monteleone
- Institute of General, Inorganic and Theoretical Chemistry, Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Klaus R Liedl
- Institute of General, Inorganic and Theoretical Chemistry, Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
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20
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Computer-assisted design, synthesis, binding and cytotoxicity assessments of new 1-(4-(aryl(methyl)amino)butyl)-heterocyclic sigma 1 ligands. Eur J Med Chem 2016; 121:712-726. [DOI: 10.1016/j.ejmech.2016.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 11/21/2022]
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21
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Rui M, Marra A, Pace V, Juza M, Rossi D, Collina S. Novel Enantiopure Sigma Receptor Modulators: Quick (Semi-)Preparative Chiral Resolution via HPLC and Absolute Configuration Assignment. Molecules 2016; 21:molecules21091210. [PMID: 27626396 PMCID: PMC6273946 DOI: 10.3390/molecules21091210] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/30/2016] [Accepted: 09/06/2016] [Indexed: 11/21/2022] Open
Abstract
The identification of novel pan-sigma receptor (SR) modulators, potentially useful in cancer treatment, represents a new goal of our research. Here, we report on the preparation of novel chiral compounds characterized by a 3-C alkyl chain bridging an aromatic portion to a 4-benzyl-piperidine moiety. All of the studied compounds have been prepared both in racemic and enantiomerically-pure form, with the final aim to address the role of chirality in the SR interaction. To isolate and characterize enantiomeric compounds, high-performance liquid chromatography (HPLC) procedures were set up. A systematic analytical screening, involving several combinations of chiral stationary and mobile phases, allowed us to optimize the analytical resolution and to set up the (semi-)preparative chromatographic conditions. Applying the optimized procedure, the enantiomeric resolution of the studied compounds was successfully achieved, obtaining all of the compounds with an enantiomeric excess higher than 95%. Lastly, the absolute configuration has been empirically assigned to enantiopure compounds, combining the electronic circular dichroism (ECD) technique to the elution order study.
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Affiliation(s)
- Marta Rui
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy.
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy.
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
| | - Markus Juza
- Corden Pharma Switzerland LLC, Eichenweg 1, Liestal 4410, Switzerland.
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy.
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy.
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22
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Rui M, Rossi D, Marra A, Paolillo M, Schinelli S, Curti D, Tesei A, Cortesi M, Zamagni A, Laurini E, Pricl S, Schepmann D, Wűnsch B, Urban E, Pace V, Collina S. Synthesis and biological evaluation of new aryl-alkyl(alkenyl)-4-benzylpiperidines, novel Sigma Receptor (SR) modulators, as potential anticancer-agents. Eur J Med Chem 2016; 124:649-665. [PMID: 27614411 DOI: 10.1016/j.ejmech.2016.08.067] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 01/20/2023]
Abstract
In the early 2000s, the Sigma Receptor (SR) family was identified as potential "druggable" target in cancer treatment. Indeed, high density of SRs was found in breast, lung, and prostate cancer cells, supporting the idea that SRs could play a role in tumor growth and progression. Moreover, a link between the degree of SR expression and tumor aggressiveness has been postulated, justified by the presence of SRs in high metastatic-potential cancer cells. As a consequence, considerable efforts have been devoted to the development of small molecules endowed with good affinity towards the two SR subtypes (S1R and S2R) with potential anticancer activity. Herein, we report the synthesis and biological profile of aryl-alkyl(alkenyl)-4-benzylpiperidine derivatives - as novel potential anticancer drugs targeting SR. Among them, 3 (RC-106) exhibited a preclinical profile of antitumor efficacy on a panel of cell lines representative of different cancer types (i.e. Paca3, MDA-MB 231) expressing both SRs, and emerged as a hit compound of a new class of SR modulators potentially useful for the treatment of cancer disease.
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Affiliation(s)
- Marta Rui
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy; Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy
| | - Mayra Paolillo
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy
| | - Sergio Schinelli
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy
| | - Daniela Curti
- Department of Biology and Biotechnology "L. Spallanzani", Lab. of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Anna Tesei
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola (FC), Italy
| | - Michela Cortesi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola (FC), Italy
| | - Alice Zamagni
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola (FC), Italy
| | - Erik Laurini
- MOSE - DEA, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy
| | - Sabrina Pricl
- MOSE - DEA, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy; National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Trieste, Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149, Muenster, Germany
| | - Bernhard Wűnsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149, Muenster, Germany
| | - Ernst Urban
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 6 and 12, 27100, Pavia, Italy.
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23
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Estrada M, Pérez C, Soriano E, Laurini E, Romano M, Pricl S, Morales-García JA, Pérez-Castillo A, Rodríguez-Franco MI. New neurogenic lipoic-based hybrids as innovative Alzheimer's drugs with σ-1 agonism and β-secretase inhibition. Future Med Chem 2016; 8:1191-207. [PMID: 27402296 DOI: 10.4155/fmc-2016-0036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Neurogenic agents emerge as innovative drugs for the treatment of Alzheimer's disease (AD), whose pathological complexity suggests strengthening research in the multi-target directed ligands strategy. RESULTS By combining the lipoic acid structure with N-benzylpiperidine or N,N-dibenzyl(N-methyl)amine fragments, new multi-target directed ligands were obtained that act at three relevant targets in AD: σ-1 receptor (σ1R), β-secretase-1 (BACE1) and acetylcholinesterase (AChE). Moreover, they show potent neurogenic properties, good antioxidant capacity and favorable CNS permeability. Molecular modeling studies on AChE, σ1R and BACE1 highlight relevant drug-protein interactions that may contribute to the development of new disease-modifying drugs. CONCLUSION New lipoic-based σ1 agonists endowed with neurogenic, antioxidant, cholinergic and amyloid β-peptide-reducing properties have been discovered for the potential treatment of AD.
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Affiliation(s)
- Martín Estrada
- Instituto de Química Médica (IQM-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Concepción Pérez
- Instituto de Química Médica (IQM-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Elena Soriano
- Instituto de Química Orgánica General (IQOG-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Erik Laurini
- Molecular Simulation Engineering (MOSE) Laboratory, DEA, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Maurizio Romano
- Department of Life Sciences, University of Trieste, Via A. Valerio 28, 34127 - Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulation Engineering (MOSE) Laboratory, DEA, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
- National Interuniversity Consortium for Material Science & Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Trieste, Italy
| | - José A Morales-García
- Instituto de Investigaciones Biomédicas "Alberto Sols" (IIB-CSIC), C/Arturo Duperier 4, 28029-Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), C/Valderrebollo 5, 28031-Madrid, Spain
| | - Ana Pérez-Castillo
- Instituto de Investigaciones Biomédicas "Alberto Sols" (IIB-CSIC), C/Arturo Duperier 4, 28029-Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), C/Valderrebollo 5, 28031-Madrid, Spain
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24
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Weber F, Brune S, Börgel F, Lange C, Korpis K, Bednarski PJ, Laurini E, Fermeglia M, Pricl S, Schepmann D, Wünsch B. Rigidity versus Flexibility: Is This an Issue in σ1 Receptor Ligand Affinity and Activity? J Med Chem 2016; 59:5505-19. [PMID: 27156565 DOI: 10.1021/acs.jmedchem.6b00585] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Stereoisomeric 2,5-diazabicyclo[2.2.2]octanes 14 and 15 were prepared in a chiral-pool synthesis starting from (S)- or (R)-aspartate. The key step in the synthesis was a Dieckmann-analogous cyclization of (dioxopiperazinyl)acetates 8, which involved trapping of the intermediate hemiketal anion with Me3SiCl. The σ1 affinity was tested using membrane preparations from animal (guinea pig) and human origin. The binding of bicyclic compounds was analyzed by molecular dynamics simulations based on a 3D homology model of the σ1 receptor. The good correlation between Ki values observed in the σ1 assays and calculated free binding energy, coupled with the identification of four crucial ligand/receptor interactions, allowed the formulation of structure-affinity relationships. In an in vitro antitumor assay with seven human tumor cell lines, the bicyclic compounds inhibited selectively the growth of the cell line A427, which is due to induction of apoptosis. In this assay, the compounds behave like the known σ1 receptor antagonist haloperidol.
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Affiliation(s)
- Frauke Weber
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster , Corrensstraße 48, D-48149 Münster, Germany
| | - Stefanie Brune
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster , Corrensstraße 48, D-48149 Münster, Germany
| | - Frederik Börgel
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster , Corrensstraße 48, D-48149 Münster, Germany
| | - Carsten Lange
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald , Friedrich-Ludwig-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Katharina Korpis
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald , Friedrich-Ludwig-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Patrick J Bednarski
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald , Friedrich-Ludwig-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Erik Laurini
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste , Via Valerio 6, 34127 Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste , Via Valerio 6, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulations Engineering (MOSE) Laboratory, Department of Engineering and Architecture (DEA), University of Trieste , Via Valerio 6, 34127 Trieste, Italy.,National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste , Via Valerio 6, 32127 Trieste, Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster , Corrensstraße 48, D-48149 Münster, Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster , Corrensstraße 48, D-48149 Münster, Germany.,Cells-in-Motion Cluster of Excellence (EXC 1003-CiM), University of Münster, 48149 Münster, Germany
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25
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Marra A, Rossi D, Maggi L, Corana F, Mannucci B, Peviani M, Curti D, Collina S. Development of easy-to-use reverse-phase liquid chromatographic methods for determining PRE-084, RC-33 and RC-34 in biological matrices. The first step for in vivo analysis of sigma1 receptor agonists. Biomed Chromatogr 2016; 30:645-51. [PMID: 26447185 DOI: 10.1002/bmc.3609] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 08/19/2015] [Accepted: 08/31/2015] [Indexed: 11/07/2022]
Abstract
Over the years there has been a growing interest in the therapeutic potential for central nervous system pathologies of sigma receptor modulators. The widely studied PRE-084 and our compounds RC-33 and RC-34 are very potent and selective sigma 1 receptor agonists that could represent promising drug candidates for Amyotrophic Lateral Sclerosis (ALS). Herein, we develop and validate robust and easy-to-use reverse-phase chromatographic methods suitable for detecting and quantifying PRE-084, RC-33 and RC-34 in mouse blood, brain and spinal cord. An HPLC/UV/ESI-MS system was employed for analyzing PRE-084 and an HPLC/UV-PDA system for determining RC-33 and RC-34. Chromatographic separations were achieved on Waters Symmetry RP18 column (150 × 3.9 mm, 5 µm), eluting with water and acetonitrile (both containing 0.1% formic acid) in gradient conditions. The recovery of PRE-084, RC-33 and RC-34 was >95% in all the considered matrices. Their limits of quantitation and detection were also determined. Validation proved the methods be suitable for separating tested compounds from endogenous interferences, being characterized by good sensitivity, linearity, precision and accuracy. A preliminary central nervous system distribution study showed a high distribution of RC-33 in brain and spinal cord, with concentration values well above the determined limit of quantitation. The proposed methods will be used in future preclinical investigations.
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Affiliation(s)
- Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Lauretta Maggi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Federica Corana
- Centro Grandi Strumenti, University of Pavia, Via bassi 21, 27100, Pavia, Italy
| | - Barbara Mannucci
- Centro Grandi Strumenti, University of Pavia, Via bassi 21, 27100, Pavia, Italy
| | - Marco Peviani
- Department of Biology and Biotechnology 'L. Spallanzani', Laboratory of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Daniela Curti
- Department of Biology and Biotechnology 'L. Spallanzani', Laboratory of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
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26
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Marra A, Rossi D, Pignataro L, Bigogno C, Canta A, Oggioni N, Malacrida A, Corbo M, Cavaletti G, Peviani M, Curti D, Dondio G, Collina S. Toward the identification of neuroprotective agents: g-scale synthesis, pharmacokinetic evaluation and CNS distribution of (R)-RC-33, a promising SIGMA1 receptor agonist. Future Med Chem 2016; 8:287-95. [PMID: 26898712 DOI: 10.4155/fmc.15.191] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
AIM Nowadays, there is a great interest in the therapeutic potential of sigma1 receptor ligands for treating different CNS pathologies. Our previous investigations led to identify (R)-RC-33 as a potent and selective S1R agonist. RESULTS Herein, we report the gram-scale synthesis, pharmacokinetic profile and CNS distribution of (R)-RC-33 in the mouse to determine the most suitable dosage schedule for in vivo administration. For comparative purposes, the same experiments were also performed with PRE-084, the most widely used S1R agonist commonly in pharmacological experiments. DISCUSSION (R)-RC-33 shows a similar pharmacokinetic profile and a better CNS distribution when compared with PRE-084. CONCLUSION (R)-RC-33 may be a promising candidate for in vivo studies in animal models of neurodegenerative diseases.
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Affiliation(s)
- Annamaria Marra
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia-I, Italy
| | - Daniela Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia-I, Italy
| | - Luca Pignataro
- Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, 20133 Milano-I, Italy
| | - Chiara Bigogno
- Aphad S.r.l., Via della Resistenza 65, 20090 Buccinasco Milan-I, Italy
| | - Annalisa Canta
- Experimental Neurology Unit, Department of Surgery & Translational Medicine & Milan Center for Neuroscience, University of Milan Bicocca, Via Cadore 48, 20900 Monza-I, Italy
| | - Norberto Oggioni
- Experimental Neurology Unit, Department of Surgery & Translational Medicine & Milan Center for Neuroscience, University of Milan Bicocca, Via Cadore 48, 20900 Monza-I, Italy
| | - Alessio Malacrida
- Experimental Neurology Unit, Department of Surgery & Translational Medicine & Milan Center for Neuroscience, University of Milan Bicocca, Via Cadore 48, 20900 Monza-I, Italy
| | - Massimo Corbo
- Department of Neurorehabilitation Sciences, Casa Cura Policlinico (CCP), via Dezza 48, 20144 Milan-I, Italy
| | - Guido Cavaletti
- Experimental Neurology Unit, Department of Surgery & Translational Medicine & Milan Center for Neuroscience, University of Milan Bicocca, Via Cadore 48, 20900 Monza-I, Italy
| | - Marco Peviani
- Department of Biology & Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia-I, Italy
| | - Daniela Curti
- Department of Biology & Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia-I, Italy
| | - Giulio Dondio
- Aphad S.r.l., Via della Resistenza 65, 20090 Buccinasco Milan-I, Italy
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia-I, Italy
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27
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Zampieri D, Laurini E, Vio L, Fermeglia M, Pricl S, Wünsch B, Schepmann D, Mamolo MG. Improving selectivity preserving affinity: new piperidine-4-carboxamide derivatives as effective sigma-1-ligands. Eur J Med Chem 2015; 90:797-808. [PMID: 25528334 DOI: 10.1016/j.ejmech.2014.12.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 11/19/2014] [Accepted: 12/11/2014] [Indexed: 10/24/2022]
Abstract
We report the design, synthesis and binding evaluation against σ1 and σ2 receptors of a series of new piperidine-4-carboxamide derivatives variously substituted on the amide nitrogen atom. Specifically, we assessed the effects exerted on σ receptor affinity by substituting the N-benzylcarboxamide group present on a series of compounds previously synthesized in our laboratory with different cyclic or linear moieties. The synthesized compounds 2a-o were tested to estimate their affinity and selectivity toward σ1 and σ2 receptors. Very high σ1 affinity (Ki = 3.7 nM) and Kiσ2/Kiσ1 selectivity ratio (351) were found for the tetrahydroquinoline derivative 2k, featuring a 4-chlorobenzyl moiety linked to the piperidine nitrogen atom.
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Affiliation(s)
- Daniele Zampieri
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy.
| | - Erik Laurini
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Luciano Vio
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy; National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE-DEA, University of Trieste, Trieste, Italy.
| | - Bernhard Wünsch
- Department of Pharmaceutical and Medicinal Chemistry, Corrensstrasse 48, 48149 Münster, Germany
| | - Dirk Schepmann
- Department of Pharmaceutical and Medicinal Chemistry, Corrensstrasse 48, 48149 Münster, Germany
| | - Maria Grazia Mamolo
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
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28
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Rossi D, Marra A, Rui M, Laurini E, Fermeglia M, Pricl S, Schepmann D, Wuensch B, Peviani M, Curti D, Collina S. A step forward in the sigma enigma: a role for chirality in the sigma1 receptor–ligand interaction? MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00349g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To investigate the role of chirality in the ligand–σ1 receptor interaction, a series of enantiomeric arylalkylaminoalcohols and arylpyrrolidinols was evaluated by means of both in silico and in vitro studies.
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29
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Laurini E, Harel D, Marson D, Schepmann D, Schmidt TJ, Pricl S, Wünsch B. Identification, pharmacological evaluation and binding mode analysis of novel chromene and chromane based σ1 receptor ligands. Eur J Med Chem 2014; 83:526-33. [DOI: 10.1016/j.ejmech.2014.06.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/23/2014] [Accepted: 06/25/2014] [Indexed: 10/25/2022]
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30
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Almansa C, Vela JM. Selective sigma-1 receptor antagonists for the treatment of pain. Future Med Chem 2014; 6:1179-99. [PMID: 25078137 DOI: 10.4155/fmc.14.54] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
The sigma-1 receptor (σ1R) is located in areas of the CNS key for pain control and belongs to a unique target class with chaperoning functions over different molecular targets involved in transmission and amplification of nociceptive messages. Preclinical evidence supports a role for σ1R antagonists in the treatment of pain states where hypersensitivity develops as hyperalgesia and allodynia, two common symptoms encountered in neuropathic and other chronic pain conditions. Additionally, σ1R antagonists increase opioid analgesia without increasing opioid-related unwanted effects, which point to their potential use as opioid adjuvant therapy. This review summarizes the structure and function of the σ1R as well as the medicinal chemistry and pharmacological studies directed to the identification of σ1R antagonists for the treatment of pain.
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Affiliation(s)
- Carmen Almansa
- Drug Discovery and Preclinical Development, ESTEVE, Baldiri Reixach, 4-8, 08028 Barcelona, Spain
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31
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Brune S, Schepmann D, Klempnauer KH, Marson D, Dal Col V, Laurini E, Fermeglia M, Wünsch B, Pricl S. The sigma enigma: in vitro/in silico site-directed mutagenesis studies unveil σ1 receptor ligand binding. Biochemistry 2014; 53:2993-3003. [PMID: 24766040 DOI: 10.1021/bi401575g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The σ1 receptor is an integral membrane protein that shares no homology with other receptor systems, has no unequivocally identified natural ligands, but appears to play critical roles in a wide variety of cell functions. While the number of reports of the possible functions of the σ1 receptor is increasing, almost no information about the three-dimensional structure of the receptor and/or possible modes of interaction of the σ1 protein with its ligands have been described. Here we performed an in vitro/in silico investigation to analyze the molecular interactions of the σ1 receptor with its prototypical agonist (+)-pentazocine. Accordingly, 23 mutant σ1 isoforms were generated, and their interactions with (+)-pentazocine were determined experimentally. All direct and/or indirect effects exerted by the mutant residues on the receptor-agonist interactions were reproduced and rationalized in silico, thus shining new light on the three-dimensional structure of the σ1 receptor and its ligand binding site.
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Affiliation(s)
- S Brune
- Institut für Pharmazeutische und Medizinische Chemie, Westfälische Wilhelms-Universität Münster , Corrensstraße 48, D-48149 Münster, Germany
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32
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Weber F, Brune S, Korpis K, Bednarski PJ, Laurini E, Dal Col V, Pricl S, Schepmann D, Wünsch B. Synthesis, Pharmacological Evaluation, and σ1 Receptor Interaction Analysis of Hydroxyethyl Substituted Piperazines. J Med Chem 2014; 57:2884-94. [DOI: 10.1021/jm401707t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Frauke Weber
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Stefanie Brune
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Katharina Korpis
- Institute
of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, University of Greifswald, F.-L.-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Patrick J. Bednarski
- Institute
of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, University of Greifswald, F.-L.-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Erik Laurini
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
| | - Valentina Dal Col
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
- National
Interuniversity Consortium for Material Science and Technology (INSTM),
Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 32127 Trieste, Italy
| | - Dirk Schepmann
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Bernhard Wünsch
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
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33
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Terada K, Kojima Y, Watanabe T, Izumo N, Chiba K, Karube Y. Inhibition of nerve growth factor-induced neurite outgrowth from PC12 cells by dexamethasone: signaling pathways through the glucocorticoid receptor and phosphorylated Akt and ERK1/2. PLoS One 2014; 9:e93223. [PMID: 24667984 PMCID: PMC3965538 DOI: 10.1371/journal.pone.0093223] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/03/2014] [Indexed: 11/25/2022] Open
Abstract
Glucocorticoids are important mediators of the stress response and are commonly employed as drugs for the suppression of immune rejection after organ transplantation. Previous investigations uncovered the possibility of mood depression in patients undergoing long-term treatment with synthetic glucocorticoids, including dexamethasone (DEX). Exogenous glucocorticoids and their synthetic derivatives can also adversely affect the development of the central nervous system. Although neurite extension from rat pheochromocytoma-derived PC12 cells and a variety of primary neurons is stimulated by nerve growth factor (NGF), and signaling pathways triggered by the binding of NGF to tyrosine kinase receptor type 1 (TrkA) function in both neurite outgrowth and neuronal survival, the effect of DEX on the activation of regulatory proteins and pathways downstream of TrkA has not been well characterized. To analyze the influence of DEX on NGF-induced neurite outgrowth and signaling, PC12 cells, a widely utilized model of neuronal differentiation, were pretreated with the glucocorticoid prior to NGF induction. NGF-induced neurite outgrowth was attenuated by pretreatment with DEX, even in the absence of DEX after the addition of NGF. Moreover, DEX suppressed the phosphorylation of Akt and extracellular-regulated kinase 1/2 (ERK1/2) in the neurite outgrowth signaling cascade initiated by NGF. Finally, the glucocorticoid receptor (GR) antagonist, RU38486, counteracted the inhibitory effect of DEX pretreatment, not only on the phosphorylation of Akt and ERK1/2, but also on neurite extension from PC12 cells. These results suggest that DEX binding to the GR impairs NGF-promoted neurite outgrowth by interfering with the activation/phosphorylation of Akt and ERK1/2. These novel findings are likely to be useful for elucidating the central nervous system depressive mechanism(s) of action of DEX and other glucocorticoids.
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Affiliation(s)
- Kazuki Terada
- Laboratory of Drug Design and Drug Delivery, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan; Laboratory of Clinical Pharmacology, Yokohama College of Pharmacy, Kanagawa, Japan
| | - Yoshitsugu Kojima
- Research and Development Department 2, Nippon Sigmax Co., Ltd., Tokyo, Japan
| | - Takayuki Watanabe
- Research and Development Department 2, Nippon Sigmax Co., Ltd., Tokyo, Japan
| | - Nobuo Izumo
- Laboratory of Clinical Pharmacology, Yokohama College of Pharmacy, Kanagawa, Japan
| | - Koji Chiba
- Laboratory of Clinical Pharmacology, Yokohama College of Pharmacy, Kanagawa, Japan
| | - Yoshiharu Karube
- Laboratory of Drug Design and Drug Delivery, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
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34
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Zampieri D, Laurini E, Vio L, Golob S, Fermeglia M, Pricl S, Mamolo MG. Synthesis and receptor binding studies of some new arylcarboxamide derivatives as sigma-1 ligands. Bioorg Med Chem Lett 2014; 24:1021-5. [PMID: 24486131 DOI: 10.1016/j.bmcl.2014.01.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 01/09/2014] [Accepted: 01/12/2014] [Indexed: 11/26/2022]
Abstract
We describe here the synthesis and the binding interaction with σ1 and σ2 receptors of a series of new arylcarboxamide derivatives variously substituted on the aromatic portions. Maintaining a partial scaffold of a series of compounds previously synthesized by us, we evaluate the effect of the substitution on σ binding. The synthesized compounds have been tested to estimate their affinity and selectivity toward σ1 and σ2 receptors. Two out of 16 derivatives showed an interesting σ1 affinity (21.2 and 13.6 nM-compounds 2m and 2p) and a good selectivity (Ki(σ2)/Ki(σ1) >140 and >40, respectively).
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Affiliation(s)
- Daniele Zampieri
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy.
| | - Erik Laurini
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy.
| | - Luciano Vio
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Samuel Golob
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular Simulation Engineering (MOSE) Laboratory, DI3, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy.
| | - Maria Grazia Mamolo
- Department of Chemistry & Pharmaceutical Sciences, Piazzale Europa 1, University of Trieste, 34127 Trieste, Italy
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