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Pyka P, Garbo S, Murzyn A, Satała G, Janusz A, Górka M, Pietruś W, Mituła F, Popiel D, Wieczorek M, Palmisano B, Raucci A, Bojarski AJ, Zwergel C, Szymańska E, Kucwaj-Brysz K, Battistelli C, Handzlik J, Podlewska S. Unlocking the potential of higher-molecular-weight 5-HT 7R ligands: Synthesis, affinity, and ADMET examination. Bioorg Chem 2024; 151:107668. [PMID: 39079393 DOI: 10.1016/j.bioorg.2024.107668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/10/2024] [Accepted: 07/22/2024] [Indexed: 08/30/2024]
Abstract
An increasing number of drugs introduced to the market and numerous repositories of compounds with confirmed activity have posed the need to revalidate the state-of-the-art rules that determine the ranges of properties the compounds should possess to become future drugs. In this study, we designed a series of two chemotypes of aryl-piperazine hydantoin ligands of 5-HT7R, an attractive target in search for innovative CNS drugs, with higher molecular weight (close to or over 500). Consequently, 14 new compounds were synthesised and screened for their receptor activity accompanied by extensive docking studies to evaluate the observed structure-activity/properties relationships. The ADMET characterisation in terms of the biological membrane permeability, metabolic stability, hepatotoxicity, cardiotoxicity, and protein plasma binding of the obtained compounds was carried out in vitro. The outcome of these studies constituted the basis for the comprehensive challenge of computational tools for ADMET properties prediction. All the compounds possessed high affinity to the 5-HT7R (Ki below 250 nM for all analysed structures) with good selectivity over 5-HT6R and varying affinity towards 5-HT2AR, 5-HT1AR and D2R. For the best compounds of this study, the expression profile of genes associated with neurodegeneration, anti-oxidant response and anti-inflammatory function was determined, and the survival of the cells (SH-SY5Y as an in vitro model of Alzheimer's disease) was evaluated. One 5-HT7R agent (32) was characterised by a very promising ADMET profile, i.e. good membrane permeability, low hepatotoxicity and cardiotoxicity, and high metabolic stability with the simultaneous high rate of plasma protein binding and high selectivity over other GPCRs considered, together with satisfying gene expression profile modulations and neural cell survival. Such encouraging properties make it a good candidate for further testing and optimisation as a potential agent in the treatment of CNS-related disorders.
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Affiliation(s)
- Patryk Pyka
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland; Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, 31-530 Kraków, Poland
| | - Sabrina Garbo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome
| | - Aleksandra Murzyn
- Maj Institute of Pharmacology Polish Academy of Sciences, Smetna 12, 31-343 Kraków, Poland
| | - Grzegorz Satała
- Maj Institute of Pharmacology Polish Academy of Sciences, Smetna 12, 31-343 Kraków, Poland
| | - Artur Janusz
- Preclinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Michał Górka
- Preclinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Wojciech Pietruś
- Medicinal Chemistry Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Filip Mituła
- Preclinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Delfina Popiel
- Preclinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Maciej Wieczorek
- Preclinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland; Clinical Development Department, Celon Pharma S.A., R&D Centre, Marymoncka 15, 05-152 Kazuń Nowy, Poland
| | - Biagio Palmisano
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome
| | - Alessia Raucci
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Andrzej J Bojarski
- Maj Institute of Pharmacology Polish Academy of Sciences, Smetna 12, 31-343 Kraków, Poland
| | - Clemens Zwergel
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
| | - Ewa Szymańska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Cecilia Battistelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome.
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
| | - Sabina Podlewska
- Maj Institute of Pharmacology Polish Academy of Sciences, Smetna 12, 31-343 Kraków, Poland.
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Kaczor A, Knutelska J, Kucwaj-Brysz K, Zygmunt M, Żesławska E, Siwek A, Bednarski M, Podlewska S, Jastrzębska-Więsek M, Nitek W, Sapa J, Handzlik J. The Subtype Selectivity in Search of Potent Hypotensive Agents among 5,5-Dimethylhydantoin Derived α 1-Adrenoceptors Antagonists. Int J Mol Sci 2023; 24:16609. [PMID: 38068933 PMCID: PMC10706087 DOI: 10.3390/ijms242316609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 11/18/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
In order to find new hypotensive drugs possessing higher activity and better selectivity, a new series of fifteen 5,5-dimethylhydantoin derivatives (1-15) was designed. Three-step syntheses, consisting of N-alkylations using standard procedures as well as microwaves, were carried out. Crystal structures were determined for compounds 7-9. All of the synthesized 5,5-dimethylhydantoins were tested for their affinity to α1-adrenergic receptors (α1-AR) using both in vitro and in silico methods. Most of them displayed higher affinity (Ki < 127.9 nM) to α1-adrenoceptor than urapidil in radioligand binding assay. Docking to two subtypes of adrenergic receptors, α1A and α1B, was conducted. Selected compounds were tested for their activity towards two α1-AR subtypes. All of them showed intrinsic antagonistic activity. Moreover, for two compounds (1 and 5), which possess o-methoxyphenylpiperazine fragments, strong activity (IC50 < 100 nM) was observed. Some representatives (3 and 5), which contain alkyl linker, proved selectivity towards α1A-AR, while two compounds with 2-hydroxypropyl linker (11 and 13) to α1B-AR. Finally, hypotensive activity was examined in rats. The most active compound (5) proved not only a lower effective dose than urapidil but also a stronger effect than prazosin.
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Affiliation(s)
- Aneta Kaczor
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (A.K.); (K.K.-B.)
| | - Joanna Knutelska
- Department of Pharmacodynamics, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (J.K.); (M.Z.); (M.B.); (J.S.)
| | - Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (A.K.); (K.K.-B.)
| | - Małgorzata Zygmunt
- Department of Pharmacodynamics, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (J.K.); (M.Z.); (M.B.); (J.S.)
| | - Ewa Żesławska
- Institute of Biology and Earth Sciences, University of the National Education Commision, Podchorążych 2, 30-084 Krakow, Poland;
| | - Agata Siwek
- Department of Pharmacobiology, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland;
| | - Marek Bednarski
- Department of Pharmacodynamics, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (J.K.); (M.Z.); (M.B.); (J.S.)
| | - Sabina Podlewska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Medicinal Chemistry, Smętna 12, 31-343 Krakow, Poland;
| | | | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland;
| | - Jacek Sapa
- Department of Pharmacodynamics, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (J.K.); (M.Z.); (M.B.); (J.S.)
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University, Medyczna 9, 30-688 Krakow, Poland; (A.K.); (K.K.-B.)
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Potential Anti-Amnesic Activity of a Novel Multimodal Derivative of Salicylamide, JJGW08, in Mice. Pharmaceuticals (Basel) 2023; 16:ph16030399. [PMID: 36986498 PMCID: PMC10056859 DOI: 10.3390/ph16030399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/01/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
Memory impairments constitute a significant problem worldwide, and the COVID-19 pandemic dramatically increased the prevalence of cognitive deficits. Patients with cognitive deficits, specifically memory disturbances, have underlying comorbid conditions such as schizophrenia, anxiety, or depression. Moreover, the available treatment options have unsatisfactory effectiveness. Therefore, there is a need to search for novel procognitive and anti-amnesic drugs with additional pharmacological activity. One of the important therapeutic targets involved in the modulation of learning and memory processes are serotonin receptors, including 5-HT1A, 5-HT6, and 5-HT7, which also play a role in the pathophysiology of depression. Therefore, this study aimed to assess the anti-amnesic and antidepressant-like potential of JJGW08, a novel arylpiperazine alkyl derivative of salicylamide with strong antagonistic properties at 5-HT1A and D2 receptors and weak at 5-HT2A and 5-HT7 receptors in rodents. First, we investigated the compound’s affinity for 5-HT6 receptors using the radioligand assays. Next, we assessed the influence of the compound on long-term emotional and recognition memory. Further, we evaluated whether the compound could protect against MK-801-induced cognitive impairments. Finally, we determined the potential antidepressant-like activity of the tested compound. We found that JJGW08 possessed no affinity for 5-HT6 receptors. Furthermore, JJGW08 protected mice against MK-801-induced recognition and emotional memory deficits but showed no antidepressant-like effects in rodents. Therefore, our preliminary study may suggest that blocking serotonin receptors, especially 5-HT1A and 5-HT7, might be beneficial in treating cognitive impairments, but it requires further investigation.
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Langer MK, Rahman A, Dey H, Anderssen T, Blencke HM, Haug T, Stensvåg K, Strøm MB, Bayer A. Investigation of tetrasubstituted heterocycles reveals hydantoins as a promising scaffold for development of novel antimicrobials with membranolytic properties. Eur J Med Chem 2023; 249:115147. [PMID: 36739750 DOI: 10.1016/j.ejmech.2023.115147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/19/2022] [Accepted: 01/21/2023] [Indexed: 01/26/2023]
Abstract
Mimics of antimicrobial peptides (AMPs) have been proposed as a promising class of antimicrobial agents. We report the analysis of five tetrasubstituted, cationic, amphipathic heterocycles as potential AMP mimics. The analysis showed that the heterocyclic scaffold had a strong influence on the haemolytic activity of the compounds, and the hydantoin scaffold was identified as a promising template for drug lead development. Subsequently, a total of 20 hydantoin derivatives were studied for their antimicrobial potency and haemolytic activity. We found 19 of these derivatives to have very low haemolytic toxicity and identified three lead structures, 2dA, 6cG, and 6dG with very promising broad-spectrum antimicrobial activity. Lead structure 6dG displayed minimum inhibitory concentration (MIC) values as low as 1 μg/mL against Gram-positive bacteria and 4-16 μg/mL against Gram-negative bacteria. Initial mode of action (MoA) studies performed on the amine derivative 6cG, utilizing a luciferase-based biosensor assay, suggested a strong membrane disrupting effect on the outer and inner membrane of Escherichia coli. Our findings show that the physical properties and structural arrangement induced by the heterocyclic scaffolds are important factors in the design of AMP mimics.
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Affiliation(s)
- Manuel K Langer
- Department of Chemistry, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Ataur Rahman
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Hymonti Dey
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Trude Anderssen
- Department of Pharmacy, Faculty of Health Sciences, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Hans-Matti Blencke
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Tor Haug
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Klara Stensvåg
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Morten B Strøm
- Department of Pharmacy, Faculty of Health Sciences, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway.
| | - Annette Bayer
- Department of Chemistry, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway.
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Singh D, Singh P, Srivastava P, Kakkar D, Pathak M, Tiwari AK. Development and challenges in the discovery of 5-HT 1A and 5-HT 7 receptor ligands. Bioorg Chem 2023; 131:106254. [PMID: 36528920 DOI: 10.1016/j.bioorg.2022.106254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/23/2022] [Accepted: 11/02/2022] [Indexed: 11/29/2022]
Abstract
Serotonin (5-hydroxytryptamine) is a small molecule that acts both in the central and peripheral nervous system as a neurotransmitter and a hormone, respectively. Serotonin is synthesized via a multi-stage pathway beginning with l-tryptophan, which is converted by an enzyme called tryptophan hydroxylase into L-5-Hydroxytryptophan. It is well-known for its significance in the control of mood, anxiety, depression, and insomnia as well as in normal human functions such as sleep, sexual activity, and appetite. Thus, for medical chemists and pharmaceutical firms, serotonin is one of the most desirable targets. Among the seven different classes of serotonin receptors, the 5-HT1A was one of the first discovered serotonin receptors, and the 5-HT7 was the last addition to the serotonin receptor family. Both the classes were thoroughly examined. 5-HT1A neurotransmission-related dysfunctions are linked to many psychological conditions such as anxiety, depression, and movement disorders. 5-HT7 is a member of the cell surface receptor GPCR superfamily and is regulated by the serotonin neurotransmitter. It has been the focus of intensive research efforts since its discovery, which was prompted by its presence in functionally important regions of the brain. The thalamus and hypothalamus have the highest 5-HT7 receptor densities. They are also found in the hippocampus and cortex at higher densities. Thermoregulation, circadian rhythm, learning and memory, and sleep are all associated with the 5-HT7 receptor. It is also suspected that this receptor may be involved in the control of mood, indicating that it may be a beneficial target for depression treatment. Several differently structured molecules such as aminotetralins, ergolines, arylpiperazines, indolylalkylamines, aporphines, and aryloxyalkyl-amines are known to bind to 5-HT1A and 5-HT7 receptor sites. In brain serotonin receptors 5-HT1A and 5-HT7 are strongly co-expressed in regions involved in depression. However, their functional interaction has not been identified. An overview of the 5-HT1A and 5-HT7 receptor ligands belonging to different chemical groups is mentioned in this review.
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Affiliation(s)
- Deepika Singh
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, Uttar Pradesh, India
| | - Priya Singh
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, Uttar Pradesh, India
| | - Pooja Srivastava
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, Brig S K Mazumdar Road, Timarpur, Delhi 110054, India
| | - Dipti Kakkar
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, Brig S K Mazumdar Road, Timarpur, Delhi 110054, India
| | - Mallika Pathak
- Department of Chemistry, Miranda House, University of Delhi, Delhi 110007, India
| | - Anjani Kumar Tiwari
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, Uttar Pradesh, India.
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Rodríguez-Lavado J, Alarcón-Espósito J, Mallea M, Lorente A. A new paradigm shift in antidepressant therapy? From dual-action to multitarget-directed ligands. Curr Med Chem 2022; 29:4896-4922. [PMID: 35301942 DOI: 10.2174/0929867329666220317121551] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/10/2022] [Accepted: 01/15/2022] [Indexed: 11/22/2022]
Abstract
Major Depressive Disorder is a chronic, recurring, and potentially fatal disease affecting up to 20% of the global population. Since the monoamine hypothesis was proposed more than 60 years ago, only a few relevant advances have been achieved, with very little disease course changing, from a pharmacological perspective. Moreover, since negative efficacy studies with novel molecules are frequent, many pharmaceutical companies have put new studies on hold. Fortunately, relevant clinical studies are currently being performed, and extensive striving is being developed by universities, research centers, and other public and private institutions. Depression is no longer considered a simple disease but a multifactorial one. New research fields are emerging in what could be a paradigm shift: the multitarget approach beyond monoamines. In this review, we summarize the present and the past of antidepressant drug discovery, with the aim to shed some light on the current state of the art in clinical and preclinical advances to face this increasingly devastating disease.
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Affiliation(s)
- Julio Rodríguez-Lavado
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Química y Ciencias Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile
| | - Jazmín Alarcón-Espósito
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Química y Ciencias Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile
| | - Michael Mallea
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Química y Ciencias Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile
| | - Alejandro Lorente
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Química y Ciencias Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile
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Ahmedova A, Pavlović G, Marinov M, Marinova P, Momekov G, Paradowska K, Yordanova S, Stoyanov S, Vassilev N, Stoyanov N. Synthesis and anticancer activity of Pt(II) complexes of spiro-5-substituted 2,4-dithiohydantoins. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The Structural Determinants for α 1-Adrenergic/Serotonin Receptors Activity among Phenylpiperazine-Hydantoin Derivatives. Molecules 2021; 26:molecules26227025. [PMID: 34834117 PMCID: PMC8623851 DOI: 10.3390/molecules26227025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 12/26/2022] Open
Abstract
Several studies confirmed the reciprocal interactions between adrenergic and serotoninergic systems and the influence of these phenomena on the pathogenesis of anxiety. Hence, searching for chemical agents with a multifunctional pharmacodynamic profile may bring highly effective therapy for CNS disorders. This study presents a deep structural insight into the hydantoin-arylpiperazine group and their serotonin/α-adrenergic activity. The newly synthesized compounds were tested in the radioligand binding assay and the intrinsic activity was evaluated for the selected derivatives. The computer-aided SAR analysis enabled us to answer questions about the influence of particular structural fragments on selective vs. multifunctional activity. As a result of the performed investigations, there were two leading structures: (a) compound 12 with multifunctional adrenergic-serotonin activity, which is a promising candidate to be an effective anxiolytic agent; (b) compound 14 with high α1A/α1D affinity and selectivity towards α1B, which is recommended due to the elimination of probable cardiotoxic effect. The structural conclusions of this work provide significant support for future lead optimization in order to achieve the desired pharmacodynamic profile in searching for new CNS-modulating agents.
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Kucwaj-Brysz K, Latacz G, Podlewska S, Żesławska E, Handzlik J, Lubelska A, Satała G, Nitek W, Handzlik J. The relationship between stereochemical and both, pharmacological and ADME-Tox, properties of the potent hydantoin 5-HT 7R antagonist MF-8. Bioorg Chem 2020; 106:104466. [PMID: 33246603 DOI: 10.1016/j.bioorg.2020.104466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 09/30/2020] [Accepted: 11/06/2020] [Indexed: 11/18/2022]
Abstract
This study concerns synthesis and evaluation of pharmacodynamic and pharmacokinetic profile for all four stereoisomers of MF-8 (5-(4-fluorophenyl)-3-(2-hydroxy-3-(4-(2-methoxyphenyl)piperazin-1-yl)propyl)-5-methylimidazolidine-2,4-dione), the previously described, highly potent 5-HT7R ligand with antidepressant activity on mice. The combination of DFT calculations of 1H NMR chemical shifts with docking and dynamic simulations, in comparison to experimental screening results, provided prediction of the configuration for one of two present stereogenic centers. The experimental data for stereoisomers (MF-8A-MF-8D) confirmed the significant impact of stereochemistry on both, 5-HT7R affinity and antagonistic action, with Ki and Kb values in the range of 3-366 nM and 0.024-99 μM, respectively. We also indicated the stereochemistry-dependent influence of the tested compounds on P-glycoprotein efflux, absorption in Caco-2 model, metabolic pathway as well as CYP3A4 and CYP2C9 activities.
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Affiliation(s)
- Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Sabina Podlewska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Ewa Żesławska
- Institute of Biology, Pedagogical University of Cracow, Podchorążych 2, 30-084 Kraków, Poland
| | - Jarosław Handzlik
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland
| | - Annamaria Lubelska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Grzegorz Satała
- Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
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Witek K, Latacz G, Kaczor A, Czekajewska J, Żesławska E, Chudzik A, Karczewska E, Nitek W, Kieć-Kononowicz K, Handzlik J. Phenylpiperazine 5,5-Dimethylhydantoin Derivatives as First Synthetic Inhibitors of Msr(A) Efflux Pump in Staphylococcus epidermidis. Molecules 2020; 25:molecules25173788. [PMID: 32825366 PMCID: PMC7503621 DOI: 10.3390/molecules25173788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/08/2020] [Accepted: 08/15/2020] [Indexed: 12/11/2022] Open
Abstract
Herein, 15 phenylpiperazine 3-benzyl-5,5-dimethylhydantoin derivatives (1-15) were screened for modulatory activity towards Msr(A) efflux pump present in S. epidermidis bacteria. Synthesis, crystallographic analysis, biological studies in vitro and structure-activity relationship (SAR) analysis were performed. The efflux pump inhibitory (EPI) potency was determined by employing ethidium bromide accumulation assay in both Msr(A) efflux pump overexpressed (K/14/1345) and deficient (ATCC 12228) S. epidermidis strains. The series of compounds was also evaluated for the capacity to reduce the resistance of K/14/1345 strain to erythromycin, a known substrate of Msr(A). The study identified five strong modulators for Msr(A) in S. epidermidis. The 2,4-dichlorobenzyl-hydantoin derivative 9 was found as the most potent EPI, inhibiting the efflux activity in K/14/1345 at a concentration as low as 15.63 µM. Crystallography-supported SAR analysis indicated structural properties that may be responsible for the activity found. This study identified the first synthetic compounds able to inhibit Msr(A) efflux pump transporter in S. epidermidis. Thus, the hydantoin-derived molecules found can be an attractive group in search for antibiotic adjuvants acting via Msr(A) transporter.
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Affiliation(s)
- Karolina Witek
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
- Department of Pharmaceutical Microbiology, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (J.C.); (E.K.)
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
| | - Aneta Kaczor
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
| | - Joanna Czekajewska
- Department of Pharmaceutical Microbiology, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (J.C.); (E.K.)
| | - Ewa Żesławska
- Institute of Biology, Pedagogical University of Krakow, ul. Podchorążych 2, 30-084 Krakow, Poland;
| | - Anna Chudzik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
| | - Elżbieta Karczewska
- Department of Pharmaceutical Microbiology, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (J.C.); (E.K.)
| | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Krakow, Poland;
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, ul. Medyczna 9, 30-688 Krakow, Poland; (K.W.); (G.L.); (A.K.); (A.C.); (K.K.-K.)
- Correspondence: ; Tel.: +48-12-620-55-84
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11
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Kaczor A, Nové M, Kincses A, Spengler G, Szymańska E, Latacz G, Handzlik J. Search for ABCB1 Modulators Among 2-Amine-5-Arylideneimidazolones as a New Perspective to Overcome Cancer Multidrug Resistance. Molecules 2020; 25:molecules25092258. [PMID: 32403277 PMCID: PMC7249047 DOI: 10.3390/molecules25092258] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/01/2020] [Accepted: 05/03/2020] [Indexed: 01/03/2023] Open
Abstract
Multidrug resistance (MDR) is a severe problem in the treatment of cancer with overexpression of glycoprotein P (Pgp, ABCB1) as a reason for chemotherapy failure. A series of 14 novel 5-arylideneimidazolone derivatives containing the morpholine moiety, with respect to two different topologies (groups A and B), were designed and obtained in a three- or four-step synthesis, involving the Dimroth rearrangement. The new compounds were tested for their inhibition of the ABCB1 efflux pump in both sensitive (parental (PAR)) and ABCB1-overexpressing (MDR) T-lymphoma cancer cells in a rhodamine 123 accumulation assay. Their cytotoxic and antiproliferative effects were investigated by a thiazolyl blue tetrazolium bromide (MTT) assay. For active compounds, an insight into the mechanisms of action using either the luminescent Pgp-Glo™ Assay in vitro or docking studies to human Pgp was performed. The safety profile in vitro was examined. Structure–activity relationship (SAR) analysis was discussed. The most active compounds, representing both 2-substituted- (11) and Dimroth-rearranged 3-substituted (18) imidazolone topologies, displayed 1.38–1.46 fold stronger efflux pump inhibiting effects than reference verapamil and were significantly safer than doxorubicin in cell-based toxicity assays in the HEK-293 cell line. Results of mechanistic studies indicate that active imidazolones are substrates with increasing Pgp ATPase activity, and their dye-efflux inhibition via competitive action on the Pgp verapamil binding site was predicted in silico.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/chemistry
- ATP Binding Cassette Transporter, Subfamily B/genetics
- ATP Binding Cassette Transporter, Subfamily B/metabolism
- Animals
- Antineoplastic Agents/chemistry
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/toxicity
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Doxorubicin/pharmacology
- Drug Resistance, Multiple/genetics
- Drug Resistance, Neoplasm/genetics
- Humans
- Imidazoles/chemical synthesis
- Imidazoles/chemistry
- Imidazoles/pharmacology
- In Vitro Techniques
- Inhibitory Concentration 50
- Lymphoma, T-Cell/enzymology
- Lymphoma, T-Cell/genetics
- Lymphoma, T-Cell/metabolism
- Mice
- Models, Molecular
- Molecular Docking Simulation
- Morpholines/chemistry
- Rhodamine 123/metabolism
- Structure-Activity Relationship
- Verapamil/pharmacology
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Affiliation(s)
- Aneta Kaczor
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland; (A.K.); (E.S.); (G.L.)
| | - Márta Nové
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary; (M.N.); (A.K.); (G.S.)
| | - Annamária Kincses
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary; (M.N.); (A.K.); (G.S.)
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary; (M.N.); (A.K.); (G.S.)
| | - Ewa Szymańska
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland; (A.K.); (E.S.); (G.L.)
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland; (A.K.); (E.S.); (G.L.)
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland; (A.K.); (E.S.); (G.L.)
- Correspondence:
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12
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Thirumaran SL, Lepailleur A, Rochais C. Structure-activity relationships of serotonin 5-HT7 receptors ligands: A review. Eur J Med Chem 2019; 183:111705. [DOI: 10.1016/j.ejmech.2019.111705] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/13/2019] [Accepted: 09/14/2019] [Indexed: 01/30/2023]
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13
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Graebin CS, Ribeiro FV, Rogério KR, Kümmerle AE. Multicomponent Reactions for the Synthesis of Bioactive Compounds: A Review. Curr Org Synth 2019; 16:855-899. [DOI: 10.2174/1570179416666190718153703] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/17/2019] [Accepted: 05/17/2019] [Indexed: 01/16/2023]
Abstract
Multicomponent reactions (MCRs) are composed of three or more reagents in which the final
product has all or most of the carbon atoms from its starting materials. These reactions represent, in the
medicinal chemistry context, great potential in the research for new bioactive compounds, since their products
can present great structural complexity. The aim of this review is to present the main multicomponent reactions
since the original report by Strecker in 1850 from nowadays, covering their evolution, highlighting their
significance in the discovery of new bioactive compounds. The use of MCRs is, indeed, a growing field of
interest in the synthesis of bioactive compounds and approved drugs, with several examples of commerciallyavailable
drugs that are (or can be) obtained through these protocols.
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Affiliation(s)
- Cedric S. Graebin
- Department of Organic Chemistry, Chemistry Institute, Federal Rural University of Rio de Janeiro, Seropedica, Brazil
| | - Felipe V. Ribeiro
- Department of Organic Chemistry, Chemistry Institute, Federal Rural University of Rio de Janeiro, Seropedica, Brazil
| | | | - Arthur E. Kümmerle
- Department of Organic Chemistry, Chemistry Institute, Federal Rural University of Rio de Janeiro, Seropedica, Brazil
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14
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Recent applications of hydantoin and thiohydantoin in medicinal chemistry. Eur J Med Chem 2019; 164:517-545. [DOI: 10.1016/j.ejmech.2018.12.066] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/24/2018] [Accepted: 12/25/2018] [Indexed: 12/17/2022]
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15
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Blattner KM, Canney DJ, Pippin DA, Blass BE. Pharmacology and Therapeutic Potential of the 5-HT 7 Receptor. ACS Chem Neurosci 2019; 10:89-119. [PMID: 30020772 DOI: 10.1021/acschemneuro.8b00283] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
It is well-documented that serotonin (5-HT) exerts its pharmacological effects through a series of 5-HT receptors. The most recently identified member of this family, 5-HT7, was first identified in 1993. Over the course of the last 25 years, this receptor has been the subject of intense investigation, and it has been demonstrated that 5-HT7 plays an important role in a wide range of pharmacological processes. As a result of these findings, modulation of 5-HT7 activity has been the focus of numerous drug discovery and development programs. This review provides an overview of the roles of 5-HT7 in normal physiology and the therapeutic potential of this interesting drug target.
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Affiliation(s)
- Kevin M. Blattner
- Temple University School of Pharmacy, Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery Research, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
| | - Daniel J. Canney
- Temple University School of Pharmacy, Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery Research, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
| | - Douglas A. Pippin
- Praeventix, LLC, 665 Stockton Drive, Suite 200H, Exton, Pennsylvania 19341, United States
| | - Benjamin E. Blass
- Temple University School of Pharmacy, Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery Research, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
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16
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Computer-Aided Studies for Novel Arylhydantoin 1,3,5-Triazine Derivatives as 5-HT₆ Serotonin Receptor Ligands with Antidepressive-Like, Anxiolytic and Antiobesity Action In Vivo. Molecules 2018; 23:molecules23102529. [PMID: 30282913 PMCID: PMC6222450 DOI: 10.3390/molecules23102529] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 01/22/2023] Open
Abstract
This study focuses on the design, synthesis, biological evaluation, and computer-aided structure-activity relationship (SAR) analysis for a novel group of aromatic triazine-methylpiperazines, with an hydantoin spacer between 1,3,5-traizine and the aromatic fragment. New compounds were synthesized and their affinities for serotonin 5-HT₆, 5-HT1A, 5-HT2A, 5-HT₇, and dopamine D₂ receptors were evaluated. The induced-fit docking (IFD) procedure was performed to explore the 5-HT₆ receptor conformation space employing two lead structures. It resulted in a consistent binding mode with the activity data. For the most active compounds found in each modification line, anti-obesity and anti-depressive-like activity in vivo, as well as "druglikeness" in vitro, were examined. Two 2-naphthyl compounds (18 and 26) were identified as the most active 5-HT₆R agents within each lead modification line, respectively. The 5-(2-naphthyl)hydantoin derivative 26, the most active one in the series (5-HT₆R: Ki = 87 nM), displayed also significant selectivity towards competitive G-protein coupled receptors (6⁻197-fold). Docking studies indicated that the hydantoin ring is stabilized by hydrogen bonding, but due to its different orientation, the hydrogen bonds form with S5.44 and N6.55 or Q6.58 for 18 and 26, respectively. Compound 26 exerted anxiolytic-like and antidepressant-like activities. Importantly, it demonstrated anti-obesity properties in animals fed palatable feed, and did not show toxic effects in vitro.
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17
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Modica MN, Lacivita E, Intagliata S, Salerno L, Romeo G, Pittalà V, Leopoldo M. Structure-Activity Relationships and Therapeutic Potentials of 5-HT 7 Receptor Ligands: An Update. J Med Chem 2018; 61:8475-8503. [PMID: 29767995 DOI: 10.1021/acs.jmedchem.7b01898] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Serotonin 5-HT7 receptor (5-HT7R) has been the subject of intense research efforts because of its presence in brain areas such as the hippocampus, hypothalamus, and cortex. Preclinical data link the 5-HT7R to a variety of central nervous system processes including the regulation of circadian rhythms, mood, cognition, pain processing, and mechanisms of addiction. 5-HT7R blockade has antidepressant effects and may ameliorate cognitive deficits associated with schizophrenia. 5-HT7R has been recently shown to modulate neuronal morphology, excitability, and plasticity, thus contributing to shape brain networks during development and to remodel neuronal wiring in the mature brain. Therefore, the activation of 5-HT7R has been proposed as a therapeutic approach for neurodevelopmental and neuropsychiatric disorders associated with abnormal neuronal connectivity. This Perspective celebrates the silver jubilee of the discovery of 5-HT7R by providing a survey of recent studies on the medicinal chemistry of 5-HT7R ligands and on the neuropharmacology of 5-HT7R.
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Affiliation(s)
- Maria N Modica
- Dipartimento di Scienze del Farmaco , Università di Catania , Viale Andrea Doria 6 , 95125 Catania , Italy
| | - Enza Lacivita
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 Bari , Italy
| | - Sebastiano Intagliata
- Department of Medicinal Chemistry, College of Pharmacy , University of Florida , Medical Science Building, 1345 Center Drive , Gainesville , Florida 32610 , United States
| | - Loredana Salerno
- Dipartimento di Scienze del Farmaco , Università di Catania , Viale Andrea Doria 6 , 95125 Catania , Italy
| | - Giuseppe Romeo
- Dipartimento di Scienze del Farmaco , Università di Catania , Viale Andrea Doria 6 , 95125 Catania , Italy
| | - Valeria Pittalà
- Dipartimento di Scienze del Farmaco , Università di Catania , Viale Andrea Doria 6 , 95125 Catania , Italy
| | - Marcello Leopoldo
- Dipartimento di Farmacia-Scienze del Farmaco , Università degli Studi di Bari Aldo Moro , Via Orabona 4 , 70125 Bari , Italy
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18
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Kucwaj-Brysz K, Kurczab R, Żesławska E, Lubelska A, Marć MA, Latacz G, Satała G, Nitek W, Kieć-Kononowicz K, Handzlik J. The role of aryl-topology in balancing between selective and dual 5-HT 7R/5-HT 1A actions of 3,5-substituted hydantoins. MEDCHEMCOMM 2018; 9:1033-1044. [PMID: 30108992 DOI: 10.1039/c8md00168e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/04/2018] [Indexed: 11/21/2022]
Abstract
In order to search for active and selective serotonin 5-HT7R antagonists among 3,5-disubstituted arylpiperazine-imidazolidine-2,4-diones, the role of the introduction/deletion and the mutual orientation of aromatic rings was analyzed. Chemical modifications of 2nd generation lead structure of 3-(3-(4-(diphenylmethyl)piperazin-1-yl)-2-hydroxypropyl)-5-(4-fluorophenyl)-5-methylimidazolidine-2,4-dione (2, KKB16) were performed. New derivatives (4-18) were designed and synthesized. X-ray crystallographic analysis of the representative compound 5-(4-fluorophenyl)-3-[2-hydroxy-3-(4-phenylpiperazin-1-yl)propyl]-5-methylimidazolidine-2,4-dione (3) was performed to support molecular modeling and SAR studies. The affinity for 5-HT7R, D2R and 5-HT1AR in radioligand binding assays for the entire series and ADME-Tox parameters in vitro for selected compounds (7, 10, and 13) were evaluated. Molecular docking and pharmacophore model assessment were performed. According to the obtained results, 5-methyl-5-naphthylhydantoin derivatives were found to be the new highly active 5-HT7R agents (Ki ≤ 5 nM) with significant selectivity over 5-HT1AR and D2R. On the contrary, the (1-naphthyl)piperazine moiety was gained with the potent dual 5-HT7R/5-HT1AR action (Ki: 11 nM/19 nM).
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Affiliation(s)
- Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
| | - Rafał Kurczab
- Department of Medicinal Chemistry Institute of Pharmacology , Polish Academy of Science , Smętna 12 , 31-343 , Cracow , Poland
| | - Ewa Żesławska
- Department of Chemistry , Institute of Biology , Pedagogical University of Cracow , Podchorążych 2 , 30-084 Cracow , Poland
| | - Annamaria Lubelska
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
| | - Małgorzata Anna Marć
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
| | - Grzegorz Satała
- Department of Medicinal Chemistry Institute of Pharmacology , Polish Academy of Science , Smętna 12 , 31-343 , Cracow , Poland
| | - Wojciech Nitek
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 , Cracow , Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs , Jagiellonian University Medical College , Medyczna 9 , 30-688 Cracow , Poland . ; Tel: +012 620 55 80
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19
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Computer-aided insights into receptor-ligand interaction for novel 5-arylhydantoin derivatives as serotonin 5-HT 7 receptor agents with antidepressant activity. Eur J Med Chem 2018; 147:102-114. [DOI: 10.1016/j.ejmech.2018.01.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 01/25/2018] [Accepted: 01/30/2018] [Indexed: 12/26/2022]
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20
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Latacz G, Lubelska A, Jastrzębska-Więsek M, Partyka A, Kucwaj-Brysz K, Wesołowska A, Kieć-Kononowicz K, Handzlik J. MF-8, a novel promising arylpiperazine-hydantoin based 5-HT 7 receptor antagonist: In vitro drug-likeness studies and in vivo pharmacological evaluation. Bioorg Med Chem Lett 2018; 28:878-883. [PMID: 29439902 DOI: 10.1016/j.bmcl.2018.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 12/26/2022]
Abstract
We report the in vitro drug-likeness studies and in vivo pharmacological evaluation for a new potent 5-HT7 receptor antagonist MF-8 (5-(4-fluorophenyl)-3-(2-hydroxy-3-(4-(2-methoxyphenyl)piperazin-1-yl)propyl)-5-methylhydantoin). The in vitro tests showed good permeability, very good metabolic stability, low risk of drug-drug interactions and satisfying safety profile. Moreover, MF-8 showed excellent antidepressant-like activity in the forced swim test in rodents and promising anxiolytic-like activity in the four-plate test in mice. Regarding the potent affinity, high selectivity and antagonistic activity of MF-8 for the 5-HT7 receptor as well as excellent drug - like properties in vitro and confirmed in vivo pharmacological activity, MF-8 should be considered as a very significant molecule in the search for a new class of anti-depressant drugs.
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Affiliation(s)
- Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
| | - Annamaria Lubelska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | | | - Anna Partyka
- Department of Clinical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Anna Wesołowska
- Department of Clinical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
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21
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Latacz G, Lubelska A, Jastrzębska-Więsek M, Partyka A, Sobiło A, Olejarz A, Kucwaj-Brysz K, Satała G, Bojarski AJ, Wesołowska A, Kieć-Kononowicz K, Handzlik J. In the search for a lead structure among series of potent and selective hydantoin 5-HT 7 R agents: The drug-likeness in vitro study. Chem Biol Drug Des 2017; 90:1295-1306. [PMID: 28886235 DOI: 10.1111/cbdd.13106] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/20/2017] [Accepted: 08/11/2017] [Indexed: 01/14/2023]
Abstract
Since the year 1993, when 5-HT7 receptor (5-HT7 R) was discovered, there is no selective 5-HT7 R ligand introduced to the pharmaceutical market. One out of the main reasons disqualifying the 5-HT7 R ligands is weak drugability properties, including metabolic instability or low permeability. This study is focused on the search of a lead compound by "drug-likeness" estimation of the first series of selective and potent 5-HT7 R ligands among 5-(4-fluorophenyl)-3-(2-hydroxy-3-(4-aryl-piperazin-1-yl)propyl)-5-methylimidazolidine-2,4-dione derivatives (11-16). The most important drugability parameters, i.e., permeability, metabolic stability, and safety, have been evaluated. The main metabolic pathways were determined. The forced swim test (FST) in mice was performed as a primary in vivo assay for compound 13 and the reference 2. The experiments showed promising drug-like properties for all ligands, with special attention to the benzhydryl (diphenylmethyl) derivative 13. The studies have also indicated in vivo activity of the compound 13 that was observed as a significant and specific antidepressant-like activity in the FST. Taking into account the beneficial properties of 13, i.e., good drug-like parameters, the significant antagonistic action, high selectivity to 5-HT7 R, and its in vivo antidepressant-like activity, the compound should be considered as a new lead in the search for drugs acting on CNS via 5-HT7 receptor.
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Affiliation(s)
- Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | - Annamaria Lubelska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | | | - Anna Partyka
- Department of Clinical Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Andrzej Sobiło
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | - Agnieszka Olejarz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | - Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | - Grzegorz Satała
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Andrzej J Bojarski
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Anna Wesołowska
- Department of Clinical Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Kraków, Poland
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22
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Konnert L, Lamaty F, Martinez J, Colacino E. Recent Advances in the Synthesis of Hydantoins: The State of the Art of a Valuable Scaffold. Chem Rev 2017. [PMID: 28644621 DOI: 10.1021/acs.chemrev.7b00067] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The review highlights the hydantoin syntheses presented from the point of view of the preparation methods. Novel synthetic routes to various hydantoin structures, the advances brought to the classical methods in the aim of producing more sustainable and environmentally friendly procedures for the preparation of these biomolecules, and a critical comparison of the different synthetic approaches developed in the last twelve years are also described. The review is composed of 95 schemes, 8 figures and 528 references for the last 12 years and includes the description of the hydantoin-based marketed drugs and clinical candidates.
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Affiliation(s)
- Laure Konnert
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Frédéric Lamaty
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Jean Martinez
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Evelina Colacino
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
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23
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Northrup JD, Purcell CR, Schafmeister CE. One-Pot Synthesis of Chiral, Spirocyclic 4-Hydantoin-Proline Derivatives for Incorporation into Spiroligomer-Based Macromolecules. J Org Chem 2017; 82:3223-3231. [PMID: 27690253 DOI: 10.1021/acs.joc.6b01773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Derivatives of 4-hydantoin-proline have been synthesized via a direct two-step alkylation method. This method is valuable in the development of applications of N,N'-disubstituted hydantoin bearing α-amino acids by improving yields, reducing the time and number of steps required to synthesize these substituted molecules, and enabling late stage functionalization of spiroligomer termini. Over 20 unique electrophiles have been tested, highlighting the inherent versatility of this chemistry.
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Affiliation(s)
- J D Northrup
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Claire R Purcell
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
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Synthesis, crystal structure, biological evaluation, and molecular docking studies of quinoline-arylpiperazine derivative as potent α1A-adrenoceptor antagonist. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Xu W, Huang J, Shao B, Xu X, Jiang R, Yuan M. Design, synthesis, crystal structure, biological evaluation and molecular docking studies of carbazole-arylpiperazine derivatives. Bioorg Med Chem 2016; 24:5565-5572. [PMID: 27663545 DOI: 10.1016/j.bmc.2016.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 01/09/2023]
Abstract
Subtype-selective α1-adrenoceptor (AR) antagonists display optimum therapeutic efficacies for the treatment of benign prostatic hyperplasia (BPH). In this study, we designed and synthesized novel carbazole-arylpiperazines derivatives (1 and 2) on the basis of the proposed pharmacophore model for α1-AR antagonists. Structural properties were investigated using single-crystal X-ray diffraction analysis. Comparison of crystal structures with ligand-based pharmacophore models revealed that the two agents may possess antagonistic effects on α1D subtype. Tissue functional assay in vitro showed that compound 2 exerted strong antagonistic activity on α1B-AR (pA2 7.13) with a poor selectivity for α1A and α1D subtypes. Compound 1 exhibited enhanced antagonistic effect on α1D subtype (pA2 7.06) and excellent selectivity for α1D over α1B (α1D/α1B ratio=79.4). To illustrate the relationship between antagonistic activity and chemical structure, molecular docking studies were performed using the homology models of α1 receptors. Binding mechanism indicated that small hydrophobic substituents attached to the arylpiperazine moiety were essential for rational design of α1D-selective antagonists.
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Affiliation(s)
- Wei Xu
- School of Pharmaceutical Sciences, Jinan University, Guangzhou 510632, China
| | - Junjun Huang
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China
| | - Binhao Shao
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China
| | - Xingjie Xu
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China
| | - Renwang Jiang
- School of Pharmaceutical Sciences, Jinan University, Guangzhou 510632, China.
| | - Mu Yuan
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
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26
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Otręebska-Machaj E, Chevalier J, Handzlik J, Szymańska E, Schabikowski J, Boyer G, Bolla JM, Kieć-Kononowicz K, Pagès JM, Alibert S. Efflux Pump Blockers in Gram-Negative Bacteria: The New Generation of Hydantoin Based-Modulators to Improve Antibiotic Activity. Front Microbiol 2016; 7:622. [PMID: 27199950 PMCID: PMC4853399 DOI: 10.3389/fmicb.2016.00622] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 04/15/2016] [Indexed: 01/21/2023] Open
Abstract
Multidrug resistant (MDR) bacteria are an increasing health problem with the shortage of new active antibiotic agents. Among effective mechanisms that contribute to the spread of MDR Gram-negative bacteria are drug efflux pumps that expel clinically important antibiotic classes out of the cell. Drug pumps are attractive targets to restore the susceptibility toward the expelled antibiotics by impairing their efflux activity. Arylhydantoin derivatives were investigated for their potentiation of activities of selected antibiotics described as efflux substrates in Enterobacter aerogenes expressing or not AcrAB pump. Several compounds increased the bacterial susceptibility toward nalidixic acid, chloramphenicol and sparfloxacin and were further pharmacomodulated to obtain a better activity against the AcrAB producing bacteria.
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Affiliation(s)
- Ewa Otręebska-Machaj
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian UniversityKrakow, Poland; UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de PharmacieMarseille, France
| | - Jacqueline Chevalier
- UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de Pharmacie Marseille, France
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University Krakow, Poland
| | - Ewa Szymańska
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University Krakow, Poland
| | - Jakub Schabikowski
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University Krakow, Poland
| | - Gérard Boyer
- UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de Pharmacie Marseille, France
| | - Jean-Michel Bolla
- UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de Pharmacie Marseille, France
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Medical College, Jagiellonian University Krakow, Poland
| | - Jean-Marie Pagès
- UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de Pharmacie Marseille, France
| | - Sandrine Alibert
- UMR-MD1, Aix Marseille Université/IRBA, Facultés de Médecine et de Pharmacie Marseille, France
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27
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Kucwaj-Brysz K, Warszycki D, Podlewska S, Witek J, Witek K, González Izquierdo A, Satała G, Loza MI, Lubelska A, Latacz G, Bojarski AJ, Castro M, Kieć-Kononowicz K, Handzlik J. Rational design in search for 5-phenylhydantoin selective 5-HT7R antagonists. Molecular modeling, synthesis and biological evaluation. Eur J Med Chem 2016; 112:258-269. [PMID: 26900658 DOI: 10.1016/j.ejmech.2016.02.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 02/08/2016] [Accepted: 02/08/2016] [Indexed: 01/13/2023]
Abstract
A series of novel arylpiperazine 5-(4-fluorophenyl)-5-methylhydantoins with 2-hydroxypropyl linker (2-15) was synthesized and evaluated on their affinity towards serotonin 5-HT7 receptor (5-HT7R) in comparison to other closely related GPCRs: serotonin 5-HT1A, and dopamine D2 receptors. The functional activity studied through the measurement of 5-HT7R-mediated cyclic AMP production in Human Embryonic Kidney 293 cells (HEK293) stably expressing human 5-HT7 proved their antagonistic properties. The lead structure was also examined in the preliminary metabolic stability study using human liver microsomes (HMLs). The process of selection of candidates for synthesis was supported by a special molecular modeling workflow including combinatorial library generation, docking, and machine learning-based assessment. Additionally, in silico predictions of selectivity over 5-HT1AR and D2R, as well as functional activity were carried out. The newly synthesized compounds were proved to possess a potent affinity for 5-HT7R, similar to that of the lead structure of 5-(4-fluorophenyl)-3-(3-(4-(2-methoxyphenyl)piperazin-1-yl)-2-hydroxypropyl)-5-methylimidazolidine-2,4-dione (1). For several derivatives, significant selectivity both over 5-HT1AR and D2R was found.
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Affiliation(s)
- Katarzyna Kucwaj-Brysz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Dawid Warszycki
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Sabina Podlewska
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland; Faculty of Chemistry, Jagiellonian University, Ingardena 3, PL 30-060, Kraków, Poland
| | - Jagna Witek
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Karolina Witek
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Andrea González Izquierdo
- Department of Pharmacology, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Spain
| | - Grzegorz Satała
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - María I Loza
- Department of Pharmacology, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Spain
| | - Annamaria Lubelska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Gniewomir Latacz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Andrzej J Bojarski
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Marián Castro
- Department of Pharmacology, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Spain
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
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29
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Fytas C, Zoidis G, Tsotinis A, Fytas G, Khan MA, Akhtar S, Rahman KM, Thurston DE. Novel 1-(2-aryl-2-adamantyl)piperazine derivatives with antiproliferative activity. Eur J Med Chem 2015; 93:281-90. [PMID: 25703296 DOI: 10.1016/j.ejmech.2015.02.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 01/27/2015] [Accepted: 02/13/2015] [Indexed: 11/29/2022]
Abstract
Novel 1-(2-aryl-2-adamantyl)piperazine derivatives have been synthesized and evaluated in vitro for their antitumor properties against HeLa cervical carcinoma, MDA MB 231 breast cancer, MIA PaCa2 pancreatic cancer, and NCI H1975 non-small cell lung cancer. The parent piperazine 6 was found to exhibit a reasonable activity toward the HeLa and MDA MB 231 tumor cell lines (IC50= 9.2 and 8.4 μΜ, respectively). Concurrent benzene ring C4-fluorination and piperidine acetylation of the piperazino NH of compound 6 resulted in the most active compound 13 of the series in both of the above cell lines (IC50=8.4 and 6.8 μΜ, respectively). Noticeably, compounds 6 and 13 exhibited a significantly low cytotoxicity level over the normal human cells HUVEC (Human Umbilical Vein Endothelial Cells) and NHDF (Normal Human Dermal Fibroblasts).
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Affiliation(s)
- Christos Fytas
- School of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, Panepistimioupoli-Zografou, GR-15784 Athens, Greece
| | - Grigoris Zoidis
- School of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, Panepistimioupoli-Zografou, GR-15784 Athens, Greece
| | - Andrew Tsotinis
- School of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, Panepistimioupoli-Zografou, GR-15784 Athens, Greece
| | - George Fytas
- School of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, Panepistimioupoli-Zografou, GR-15784 Athens, Greece.
| | - Mohsin A Khan
- Institute of Pharmaceutical Sciences, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, UK
| | - Samar Akhtar
- Institute of Pharmaceutical Sciences, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, UK
| | - Khondaker M Rahman
- Institute of Pharmaceutical Sciences, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, UK
| | - David E Thurston
- Institute of Pharmaceutical Sciences, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, UK
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