1
|
Bowroju SK, Penthala NR, Lakkaniga NR, Balasubramaniam M, Ayyadevara S, Shmookler Reis RJ, Crooks PA. Novel hydroxybenzylamine-deoxyvasicinone hybrids as anticholinesterase therapeutics for Alzheimer's disease. Bioorg Med Chem 2021; 45:116311. [PMID: 34304133 DOI: 10.1016/j.bmc.2021.116311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 12/31/2022]
Abstract
A series of novel 2-hydroxybenzylamine-deoxyvasicinone hybrid analogs (8a-8n) have been synthesized and evaluated as inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), and as inhibitors of amyloid peptide (Aβ1-42) aggregation, for treatment of Alzheimer's disease (AD). These dual acting compounds exhibited good AChE inhibitory activities ranging from 0.34 to 6.35 µM. Analogs8g and 8n were found to be the most potent AChE inhibitors in the series with IC50values of 0.38 µM and 0.34 µM, respectively. All the analogs (8a-8n) exhibited weak BuChE inhibitory activities ranging from 14.60 to 21.65 µM. Analogs8g and 8n exhibited BuChE with IC50values of 15.38 µM and 14.60 µM, respectively, demonstrating that these analogs were greater than 40-fold more selective for inhibition of AChE over BuChE. Additionally, compounds8g and 8n were also found to be the best inhibitors of self-induced Aβ1-42 peptide aggregation with IC50values of 3.91 µM and 3.22 µM, respectively; 8g and 8n also inhibited AChE-induced Aβ1-42 peptide aggregation by 68.7% and 72.6%, respectively. Kinetic analysis and molecular docking studies indicate that analogs 8g and 8n bind to a new allosteric pocket (site B) on AChE. In addition, the observed inhibition of AChE-induced Aβ1-42 peptide aggregation by 8n is likely due to allosteric inhibition of the binding of this peptide at the CAS site on AChE. Overall, these results indicate that 8g and 8n are examples of dual-acting lead compounds for the development of highly effective anti-AD drugs.
Collapse
Affiliation(s)
- Suresh K Bowroju
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Narsimha R Penthala
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Naga Rajiv Lakkaniga
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, United States
| | | | - Srinivas Ayyadevara
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States
| | - Robert J Shmookler Reis
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States; Central Arkansas Veterans Healthcare Service, Little Rock, AR 72205, United States; BioInformatics Program, University of Arkansas for Medical Sciences and University of Arkansas at Little Rock, Little Rock, AR 72205, United States
| | - Peter A Crooks
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States.
| |
Collapse
|
2
|
Forero AM, Castellanos L, Sandoval-Hernández AG, Magalhães A, Tinoco LW, Lopez-Vallejo F, Ramos FA. Integration of NMR studies, computational predictions, and in vitro assays in the search of marine diterpenes with antitumor activity. Chem Biol Drug Des 2021; 98:507-521. [PMID: 34143939 DOI: 10.1111/cbdd.13907] [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: 01/16/2021] [Revised: 04/14/2021] [Accepted: 06/06/2021] [Indexed: 12/01/2022]
Abstract
Among the compounds of natural origin, diterpenes have proved useful as drugs for the treatment of cancer. Marine organisms, such as soft corals and algae, are a promising source of diterpenes, being a rich and unexplored source of cytotoxic agents. This study evaluated a library of 32 natural and semisynthetic marine diterpenes, including briarane, cembrane, and dolabellane nuclei, with the aim of determining their cytotoxicity against three human cancer cell lines (A549, MCF7, and PC3). The three most active compounds were submitted to a flow cytometry analysis in order to determine induction of apoptosis against the A549 cell line. An NMR analysis was conducted to determine and evaluate the interactions between active diterpenes and tubulin. These interactions were characterized by a computational study using molecular docking and MD simulations. With these results, two cembrane and one chlorinated briarane diterpenes were active against the three human cancer cell lines, induced apoptosis in the A549 cell line, and showed interactions with tubulin preferably at the taxane-binding site. This study is a starting point for the identification and optimization of the marine diterpenes selected for better antitumor activities. It also highlights the power of integrating NMR studies, computational predictions, and in vitro assays in the search for compounds with antitumor activity.
Collapse
Affiliation(s)
- Abel M Forero
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia.,Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia
| | - Leonardo Castellanos
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia
| | - Adrián G Sandoval-Hernández
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia.,Instituto de Genética Humana, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia
| | - Alvicler Magalhães
- Laboratório de Apoio ao Desenvolvimento Tecnológico (LADETEC), Instituto de Química, Avenida Horácio Macedo, Cidade Universitária, Rio de Janeiro, Brazil
| | - Luzineide W Tinoco
- Laboratório Multiusuário de Análises por RMN (LAMAR), Instituto de Pesquisas de Produtos Naturais (IPPN), Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabian Lopez-Vallejo
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia
| | - Freddy A Ramos
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia
| |
Collapse
|
3
|
Kumawat A, Raheem S, Ali F, Dar TA, Chakrabarty S, Rizvi MA. Organoselenium Compounds as Acetylcholinesterase Inhibitors: Evidence and Mechanism of Mixed Inhibition. J Phys Chem B 2021; 125:1531-1541. [PMID: 33538163 DOI: 10.1021/acs.jpcb.0c08111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Acetylcholinesterase (AChE) inhibitors are actively used for the effective treatment of Alzheimer's disease. In recent years, the neuroprotective effects of organoselenium compounds such as ebselen and diselenides on the AChE activity have been investigated as potential therapeutic agents. In this work, we have carried out systematic kinetic and intrinsic fluorescence assays in combination with docking and molecular dynamics (MD) simulations to elucidate the molecular mechanism of the mixed inhibition of AChE by ebselen and diphenyl diselenide (DPDSe) molecules. Our MD simulations demonstrate significant heterogeneity in the binding modes and allosteric hotspots for DPDSe on AChE due to non-specific interactions. We have further identified that both ebselen and DPDSe can strongly bind around the peripheral anionic site (PAS), leading to non-competitive inhibition similar to other PAS-binding inhibitors. We also illustrate the entry of the DPDSe molecule into the gorge through a "side door", which offers an alternate entry point for AChE inhibitors as compared to the usual substrate entry point of the gorge. Together with results from experiments, these simulations provide mechanistic insights into the mixed type of inhibition for AChE using DPDSe as a promising inhibitor for AChE.
Collapse
Affiliation(s)
- Amit Kumawat
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Shabnam Raheem
- Department of Chemistry, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Fasil Ali
- Department of Clinical Bio-Chemistry, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Tanveer Ali Dar
- Department of Clinical Bio-Chemistry, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Suman Chakrabarty
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Masood Ahmad Rizvi
- Department of Chemistry, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| |
Collapse
|
4
|
Design, synthesis and biological assessment of acridine derivatives containing 1,3,4-thiadiazole moiety as novel selective acetylcholinesterase inhibitors. Bioorg Chem 2020; 105:104457. [PMID: 33339082 DOI: 10.1016/j.bioorg.2020.104457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 12/18/2022]
Abstract
A novel series of acridine derivatives containing substituted thiadiazol-2-amine moiety was synthesized via multi-component condensation reaction of dimedone, aromatic aldehyde and 5-aryl-1,3,4-thiadiazol-2-amines in the presence of LaCl3 as a catalyst under solvent-free conditions. Anticholinesterase (AChE and BuChE) activity evaluation of the derivatives showed that all the derivatives are capable of inhibiting both enzymes and are highly selective towards AChE. Among them, the ability of 4i and 4d with respective IC50 values of 0.002 and 0.006 µM to inhibit AChE was higher than the reference compound tacrine (IC50 = 0.016 µM). The kinetics studies demonstrated that 4i and 4d inhibit AChE through a competitive/non-competitive mixed mechanism. The HEPG2 cell viability assay evidenced that 4i and 4d significantly exhibit lower hepatotoxicity compared with tacrine. Blind docking experiments performed on TcAChE (PDB ID: 2ACE) indicated that an unknown site is preferred for binding by all the derivatives over classic binding site of the enzyme, site 1 (CAS/PAS). Identification of the residues by protein structure alignment confirmed that this site is site 2 which was recently recognized as a new allosteric site of hAChE. The binding modes of 4i and 4d were also investigated using local docking studies on site 1 and site 2.
Collapse
|
5
|
Bondžić AM, Lazarević-Pašti TD, Leskovac AR, Petrović SŽ, Čolović MB, Parac-Vogt TN, Janjić GV. A new acetylcholinesterase allosteric site responsible for binding voluminous negatively charged molecules - the role in the mechanism of AChE inhibition. Eur J Pharm Sci 2020; 151:105376. [PMID: 32492460 DOI: 10.1016/j.ejps.2020.105376] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/05/2020] [Accepted: 05/09/2020] [Indexed: 01/15/2023]
Abstract
Acetylcholinesterase (AChE) inhibitors are important in the treatment of neurodegenerative diseases. Two inhibitors, 12-tungstosilicic acid (WSiA) and 12-tungstophosphoric acid (WPA), which have polyoxometalate (POM) type structure, have been shown to inhibit AChE activity in nM concentration. Circular dichroism and tryptophan fluorescence spectroscopy demonstrated that the AChE inhibition was not accompanied by significant changes in the secondary structure of the enzyme. The molecular docking approach has revealed a new allosteric binding site, termed β-allosteric site (β-AS), which is considered responsible for the inhibition of AChE by POMs. To the best of our knowledge, this is the first study reporting a new allosteric site that is considered responsible for AChE inhibition by voluminous and negatively charged molecules such as POMs. The selected POMs were further subjected to genotoxicity testing using human peripheral blood cells as a model system. It was shown that WSiA and WPA induced a mild cytostatic but not genotoxic effects in human lymphocytes, which indicates their potential to be used as medicinal drugs. The identification of non-toxic compounds capable of binding to an allosteric site that so far has not been considered responsible for enzyme inhibition could be fundamental for the development of new drug design strategies and the discovery of more efficient AChE modulators.
Collapse
Affiliation(s)
- Aleksandra M Bondžić
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences- National Institute of thе Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia.
| | - Tamara D Lazarević-Pašti
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences- National Institute of thе Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Andreja R Leskovac
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences- National Institute of thе Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Sandra Ž Petrović
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences- National Institute of thе Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Mirjana B Čolović
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences- National Institute of thе Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | | | - Goran V Janjić
- Institute of Chemistry, Technology and Metallurgy, National Institute, University of Belgrade, Njegoševa 12, Belgrade, Serbia.
| |
Collapse
|
6
|
Hanumanthappa P, Ashok A, Prakash I, Priya CI, Zinzala J, Marigowda VV, Sosalegowda AH. In silico and In vivo Evaluation of Oxidative Stress Inhibitors Against Parkinson's Disease using the C. elegans Model. Comb Chem High Throughput Screen 2020; 23:814-826. [PMID: 32407263 DOI: 10.2174/1386207323666200514074128] [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: 12/21/2019] [Revised: 03/19/2020] [Accepted: 04/02/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Parkinson's disease ranks second, after Alzheimer's as the major neurodegenerative disorder, for which no cure or disease-modifying therapies exist. Ample evidence indicate that PD manifests as a result of impaired anti-oxidative machinery leading to neuronal death wherein Cullin-3 has ascended as a potential therapeutic target for diseases involving damaged anti-oxidative machinery. OBJECTIVE The design of target specific inhibitors for the Cullin-3 protein might be a promising strategy to increase the Nrf2 levels and to decrease the possibility of "off-target" toxic properties. METHODS In the present study, an integrated computational and wet lab approach was adopted to identify small molecule inhibitors for Cullin-3. The rational drug designing process comprised homology modeling and derivation of the pharmacophore for Cullin-3, virtual screening of Zinc natural compound database, molecular docking and Molecular dynamics based screening of ligand molecules. In vivo validations of an identified lead compound were conducted in the PD model of C. elegans. RESULTS AND DISCUSSION Our strategy yielded a potential inhibitor; (Glide score = -12.31), which was evaluated for its neuroprotective efficacy in the PD model of C. elegans. The inhibitor was able to efficiently defend against neuronal death in PD model of C. elegans and the neuroprotective effects were attributed to its anti-oxidant activities, supported by the increase in superoxide dismutase, catalase and the diminution of acetylcholinesterase and reactive oxygen species levels. In addition, the Cullin-3 inhibitor significantly restored the behavioral deficits in the transgenic C. elegans. CONCLUSION Taken together, these findings highlight the potential utility of Cullin-3 inhibition to block the persistent neuronal death in PD. Further studies focusing on Cullin-3 and its mechanism of action would be interesting.
Collapse
Affiliation(s)
- Pradeep Hanumanthappa
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Arpitha Ashok
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Inderjit Prakash
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Carmel I Priya
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Julie Zinzala
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Vidya V Marigowda
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| | - Aparna H Sosalegowda
- Department of Studies in Biotechnology, University of Mysore, Manasagangothri, Mysore 570 006, Karnataka, India
| |
Collapse
|
7
|
Synthesis and biological evaluation of indoloquinoline alkaloid cryptolepine and its bromo-derivative as dual cholinesterase inhibitors. Bioorg Chem 2019; 90:103062. [DOI: 10.1016/j.bioorg.2019.103062] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 06/04/2019] [Accepted: 06/09/2019] [Indexed: 12/20/2022]
|
8
|
Dias C, Matos AM, Blásquez-Sanchez MT, Calado P, Martins A, Dätwyler P, Ernst B, Macedo MP, Colabufo N, Rauter AP. 2-Deoxyglycosylation towards more effective and bioavailable neuroprotective molecules inspired by nature. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2019-0303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Abstract
The neuroprotective role of natural polyphenols is well established but phenolics poor water solubility affects their bioavailability and bioactivity. Aiming to overcome this issue, we were encouraged to investigate the 2-deoxyglycosylation of natural or nature inspired neuroprotective molecules, using glycals as easily accessed glycosyl donors. This robust methodology allowed the generation of a set of new resveratrol and caffeic acid ester glycosides, envisioning more effective and bioavailable compounds. Resveratrol 2-deoxyglycosides were more effective at protecting the neuronal cells from peroxide-induced cytotoxicity than resveratrol itself, while the caffeic acid ester glycoside also showed extraordinary neuroprotection activity. Coefficient partition measurements demonstrated the moderate lipophilicity of resveratrol glycosides, which Log D values are typical of a central nervous system (CNS) drug and ideal for blood-brain barrier (BBB) penetration. Passive permeation assessed by the parallel artificial membrane permeability assay (PAMPA) revealed that 2,6-dideoxy-l-arabino-hexopyranosides were more effective than 2-deoxy-d-arabino-hexopyranosides. The lack of toxicity of the neuroprotective glycosides and their promising physicochemical properties revealed the usefulness of sugar coupling towards the modulation of natural product properties and bioactivity.
Collapse
Affiliation(s)
- Catarina Dias
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
| | - Ana M. Matos
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Estudos de Doenҫas Crónicas (CEDOC), Chronic Disease Research Center, NOVA Medical School/Faculdade de Ciências Médicas , Universidade Nova de Lisboa , Lisboa , Portugal
| | - Maria T. Blásquez-Sanchez
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
| | - Patrícia Calado
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
| | - Alice Martins
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
| | - Philipp Dätwyler
- Department of Pharmaceutical Sciences, Pharmacenter , University of Basel , Klingelbergstrasse 50 , CH-4056 Basel , Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, Pharmacenter , University of Basel , Klingelbergstrasse 50 , CH-4056 Basel , Switzerland
| | - M. Paula Macedo
- Centro de Estudos de Doenҫas Crónicas (CEDOC), Chronic Disease Research Center, NOVA Medical School/Faculdade de Ciências Médicas , Universidade Nova de Lisboa , Lisboa , Portugal
- Department of Medical Sciences, Institute of Biomedicine , University of Aveiro , Aveiro , Portugal
| | - Nicola Colabufo
- Università degli Studi di Bari, Biofordrug , Via Edoardo Orabona, 4 , 70125 Bari , Italy
| | - Amélia P. Rauter
- Centro de Química e Bioquímica, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
- Centro de Química Estrutural, Faculdade de Ciências , Universidade de Lisboa, Ed. C8, Campo Grande , 1749-016 Lisboa , Portugal
| |
Collapse
|
9
|
Nuthakki VK, Sharma A, Kumar A, Bharate SB. Identification of embelin, a 3-undecyl-1,4-benzoquinone from Embelia ribes as a multitargeted anti-Alzheimer agent. Drug Dev Res 2019; 80:655-665. [PMID: 31050027 DOI: 10.1002/ddr.21544] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/15/2019] [Accepted: 04/23/2019] [Indexed: 12/30/2022]
Abstract
Beta-secreatse (BACE-1) and cholinesterases are clinically validated targets of Alzheimer's disease (AD), for which natural products have provided immense contribution. The multifaceted nature of AD signifies the need of multitargeted agents to tackle this disease. In the search of new natural products as dual BACE-1/cholinesterase inhibitors, a library of pure natural products was screened for inhibition of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and BACE-1. The screening efforts have identified 1,4-benzoquinone "embelin," a natural product derived from Embelia ribes displaying inhibition of all three enzymes, with IC50 values of 2.5, 5.4, and 2.1 μM, respectively. This screen has also identified isoquinoline alkaloids papaverine and L-tetrahydropalmatine as AChE inhibitors. Kinetic study has shown that embelin inhibits EeAChE and EqBChE with ki values of 4.59 and 0.57 μM, in an uncompetitive and noncompetitive manner, respectively. The interactions of embelin with allosteric peripheral anionic site of cholinesterases, has further supported the results of kinetic study. Embelin has also enhanced the activity of P-gp in LS-180 cells, the efflux pump which is involved in the clearance of amyloid-β from AD brain. Further, the cell viability study in neuronal cell line has indicated the excellent therapeutic window of embelin. These results are indicative of the fact that embelin is a multitargeted agent playing role in stopping the formation of amyloid-β oligomers (via inhibition of BACE-1), improves cholinergic-transmission (via inhibition of AChE/BChE) and increases amyloid-β clearance (via P-gp induction).
Collapse
Affiliation(s)
- Vijay K Nuthakki
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Ankita Sharma
- PK-PD Toxicology & Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Ajay Kumar
- PK-PD Toxicology & Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Sandip B Bharate
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| |
Collapse
|
10
|
Roca C, Requena C, Sebastián-Pérez V, Malhotra S, Radoux C, Pérez C, Martinez A, Antonio Páez J, Blundell TL, Campillo NE. Identification of new allosteric sites and modulators of AChE through computational and experimental tools. J Enzyme Inhib Med Chem 2018; 33:1034-1047. [PMID: 29873262 PMCID: PMC6010107 DOI: 10.1080/14756366.2018.1476502] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/09/2018] [Accepted: 05/09/2018] [Indexed: 11/15/2022] Open
Abstract
Allosteric sites on proteins are targeted for designing more selective inhibitors of enzyme activity and to discover new functions. Acetylcholinesterase (AChE), which is most widely known for the hydrolysis of the neurotransmitter acetylcholine, has a peripheral allosteric subsite responsible for amyloidosis in Alzheimer's disease through interaction with amyloid β-peptide. However, AChE plays other non-hydrolytic functions. Here, we identify and characterise using computational tools two new allosteric sites in AChE, which have allowed us to identify allosteric inhibitors by virtual screening guided by structure-based and fragment hotspot strategies. The identified compounds were also screened for in vitro inhibition of AChE and three were observed to be active. Further experimental (kinetic) and computational (molecular dynamics) studies have been performed to verify the allosteric activity. These new compounds may be valuable pharmacological tools in the study of non-cholinergic functions of AChE.
Collapse
Affiliation(s)
- Carlos Roca
- a Centro de Investigaciones Biológicas (CIB-CSIC), C/Ramiro de Maeztu , Madrid , Spain
| | - Carlos Requena
- a Centro de Investigaciones Biológicas (CIB-CSIC), C/Ramiro de Maeztu , Madrid , Spain
| | | | - Sony Malhotra
- b Department of Biochemistry , University of Cambridge , Cambridge , UK
| | - Chris Radoux
- b Department of Biochemistry , University of Cambridge , Cambridge , UK
- c Cambridge Crystallographic Data Centre , Cambridge , UK
| | - Concepción Pérez
- d Instituto de Química Médica (IQM-CSIC) , C/Juan de la Cierva , Madrid , Spain
| | - Ana Martinez
- a Centro de Investigaciones Biológicas (CIB-CSIC), C/Ramiro de Maeztu , Madrid , Spain
| | - Juan Antonio Páez
- d Instituto de Química Médica (IQM-CSIC) , C/Juan de la Cierva , Madrid , Spain
| | - Tom L Blundell
- b Department of Biochemistry , University of Cambridge , Cambridge , UK
| | - Nuria E Campillo
- a Centro de Investigaciones Biológicas (CIB-CSIC), C/Ramiro de Maeztu , Madrid , Spain
| |
Collapse
|
11
|
Kalász H, Ojha S, Tekes K, Szőke É, Mohanraj R, Fahim M, Adeghate E, Adem A. Pharmacognostical Sources of Popular Medicine To Treat Alzheimer's Disease. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2018; 12:23-35. [PMID: 29515678 PMCID: PMC5827296 DOI: 10.2174/1874104501812010023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/21/2018] [Accepted: 01/29/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND A large number of classical and recently discovered plants are indicated in preventing and/or treating Alzheimer's disease (AD). OBJECTIVE Name of plants with their anti-AD effects are important for their further use and investigation. METHOD A short overview of AD is given; anti-Alzheimer plants are given in a Table. RESULTS Various medicinal plants are listed here as sources of popular medicines to be used in cases when patients are afraid of developing and/or suffer from AD. Some of these plants have been used for centuries. The major sources in the literature, over one hundred of references are given for plants that show beneficial effect on the progress of AD. CONCLUSION Plant extracts are widely used addition to the synthetic drugs approved by various administrative authorities to stop/slow down the progress of symptoms of AD.
Collapse
Affiliation(s)
- Huba Kalász
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad tér 4, Budapest, Hungary
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O.Box 17666, Al-Ain, United Arab Emirates
| | - Kornélia Tekes
- Department of Pharmacodynamics, Semmelweis University, 1089 Budapest, Nagyvárad tér 4, Hungary
| | - Éva Szőke
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary
| | - Rajesh Mohanraj
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O.Box 17666, Al-Ain, United Arab Emirates
| | - Mohamed Fahim
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University
| | - Ernest Adeghate
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad tér 4, Budapest, Hungary
| | - Abdu Adem
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O.Box 17666, Al-Ain, United Arab Emirates
| |
Collapse
|
12
|
Chierrito TP, Pedersoli-Mantoani S, Roca C, Sebastian-Pérez V, Martínez-Gonzalez L, Pérez DI, Perez C, Canales A, Cañada FJ, Campillo NE, Carvalho I, Martinez A. Chameleon-like behavior of indolylpiperidines in complex with cholinesterases targets: Potent butyrylcholinesterase inhibitors. Eur J Med Chem 2018; 145:431-444. [DOI: 10.1016/j.ejmech.2018.01.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/22/2017] [Accepted: 01/04/2018] [Indexed: 02/04/2023]
|
13
|
Chierrito TPC, Pedersoli-Mantoani S, Roca C, Requena C, Sebastian-Perez V, Castillo WO, Moreira NCS, Pérez C, Sakamoto-Hojo ET, Takahashi CS, Jiménez-Barbero J, Cañada FJ, Campillo NE, Martinez A, Carvalho I. From dual binding site acetylcholinesterase inhibitors to allosteric modulators: A new avenue for disease-modifying drugs in Alzheimer's disease. Eur J Med Chem 2017; 139:773-791. [PMID: 28863358 DOI: 10.1016/j.ejmech.2017.08.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 12/31/2022]
Abstract
The lack of an effective treatment for Alzheimer' disease (AD), an increasing prevalence and severe neurodegenerative pathology boost medicinal chemists to look for new drugs. Currently, only acethylcholinesterase (AChE) inhibitors and glutamate antagonist have been approved to the palliative treatment of AD. Although they have a short-term symptomatic benefits, their clinical use have revealed important non-cholinergic functions for AChE such its chaperone role in beta-amyloid toxicity. We propose here the design, synthesis and evaluation of non-toxic dual binding site AChEIs by hybridization of indanone and quinoline heterocyclic scaffolds. Unexpectely, we have found a potent allosteric modulator of AChE able to target cholinergic and non-cholinergic functions by fixing a specific AChE conformation, confirmed by STD-NMR and molecular modeling studies. Furthermore the promising biological data obtained on human neuroblastoma SH-SY5Y cell assays for the new allosteric hybrid 14, led us to propose it as a valuable pharmacological tool for the study of non-cholinergic functions of AChE, and as a new important lead for novel disease modifying agents against AD.
Collapse
Affiliation(s)
- Talita P C Chierrito
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Susimaire Pedersoli-Mantoani
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Carlos Roca
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Carlos Requena
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Victor Sebastian-Perez
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Willian O Castillo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil
| | - Natalia C S Moreira
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil
| | - Concepción Pérez
- Instituto de Química Médica (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Elza T Sakamoto-Hojo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil; Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, 14040-900, Ribeirão Preto, SP, Brazil
| | - Catarina S Takahashi
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, 14049-900, Ribeirão Preto, SP, Brazil; Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Avenida Bandeirantes, 3900, 14040-900, Ribeirão Preto, SP, Brazil
| | - Jesús Jiménez-Barbero
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain; CIC BioGUNE, Parque Tecnologico de Bizkaia, Edif. 801A, 48160, Derio-Bizkaia, Bilbao, Spain
| | - F Javier Cañada
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Nuria E Campillo
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Ana Martinez
- IPSBB Unit, Centro de Investigaciones Biologicas (CSIC), Ramiro de Maeztu 9, 28040 Madrid, Spain.
| | - Ivone Carvalho
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
14
|
Exploring Anti-Prion Glyco-Based and Aromatic Scaffolds: A Chemical Strategy for the Quality of Life. Molecules 2017; 22:molecules22060864. [PMID: 28538692 PMCID: PMC6152669 DOI: 10.3390/molecules22060864] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 01/08/2023] Open
Abstract
Prion diseases are fatal neurodegenerative disorders caused by protein misfolding and aggregation, affecting the brain progressively and consequently the quality of life. Alzheimer’s is also a protein misfolding disease, causing dementia in over 40 million people worldwide. There are no therapeutics able to cure these diseases. Cellular prion protein is a high-affinity binding partner of amyloid β (Aβ) oligomers, the most toxic species in Alzheimer’s pathology. These findings motivate the development of new chemicals for a better understanding of the events involved. Disease control is far from being reached by the presently known therapeutics. In this review we describe the synthesis and mode of action of molecular entities with intervention in prion diseases’ biological processes and, if known, their role in Alzheimer’s. A diversity of structures is covered, based on glycans, steroids and terpenes, heterocycles, polyphenols, most of them embodying aromatics and a structural complexity. These molecules may be regarded as chemical tools to foster the understanding of the complex mechanisms involved, and to encourage the scientific community towards further developments for the cure of these devastating diseases.
Collapse
|
15
|
Abstract
Genus Salvia, commonly known as sage, is the largest genus in the Lamiaceae family. It comprises many species traditionally used as brain-enhancing tonics. In vitro and animal studies have confirmed that several Salvia species contain a large array of active compounds that may enhance cognitive activity and protect against neurodegenerative disease. In this review, the active constituents in plants belonging to the genus Salvia are summarised, and their influence on pharmacodynamics pertinent to cognitive activity are detailed. In particular, the effects of plants belonging to the genus Salvia and their constituents on cognitive skills including memory, attention and learning are detailed. Their potential effects in dementia, including Alzheimer’s disease, are also examined. Completed human trials are summarised, and factors influencing the potency of Salvia plants are covered. Finally, directions for future research are proposed to enhance our understanding of the potential health benefits of Salvia plants.
Collapse
Affiliation(s)
- Adrian L Lopresti
- School of Psychology and Exercise Science, Murdoch University, Perth, WA, 6150, Australia.
| |
Collapse
|
16
|
Batista D, Falé PL, Serralheiro ML, Araújo ME, Dias C, Branco I, Grosso C, Coelho J, Palavra A, Madeira PJA, Martins A, Rauter AP. Phytochemical Characterization and Biological Evaluation of the Aqueous and Supercritical Fluid Extracts from Salvia sclareoides Brot. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractPlants belonging to the genus Salvia (Lamiaceae) are known to have a wide range of biological properties. In this work, extracts obtained from the aerial parts of Salvia sclareoides Brot. were evaluated to investigate their chemical composition, toxicity, bioactivity, and stability under in vitro gastrointestinal conditions. The composition of the supercritical fluid extract was determined by GC and GC-MS, while the identification of the infusion constituents was performed by HPLC-DAD and LC-MS. The in vitro cytotoxicity of both extracts (0-2 mg/mL) was evaluated in Caco-2 cell lines by the MTT assay. The anti-inflammatory and anticholinesterase activities were determined through the inhibition of cyclooxygenase-1 and acetylcholinesterase enzymes, while β-carotene/linoleic acid bleaching test and the DPPH assays were used to evaluate the antioxidant activity. The infusion inhibited cyclooxygenase-1 (IC50 = 271.0 μg/mL), and acetylcholinesterase (IC50 = 487.7 μg/ mL) enzymes, also demonstrated significant antioxidant properties, as evaluated by the DPPH (IC50 = 10.4 μg/mL) and β-carotene/linoleic acid (IC50 = 30.0 μg/mL) assays. No remarkable alterations in the composition or in the bioactivities of the infusion were observed after in vitro digestion, which supports the potential of S. sclareoides as a source of bioactive ingredients with neuroprotective, anti-inflammatory and antioxidant properties.
Collapse
Affiliation(s)
- Daniela Batista
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Pedro L. Falé
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Maria L. Serralheiro
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Maria-Eduarda Araújo
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Catarina Dias
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Isabel Branco
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Clara Grosso
- REQUIMTE – LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015Porto, Portugal
| | - José Coelho
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1096Lisboa Codex, Portugal
| | - António Palavra
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1096Lisboa Codex, Portugal
| | - Paulo J. A. Madeira
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Alice Martins
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Amélia P. Rauter
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| |
Collapse
|
17
|
Pacifico S, Piccolella S, Lettieri A, Nocera P, Bollino F, Catauro M. A metabolic profiling approach to an Italian sage leaf extract (SoA541) defines its antioxidant and anti-acetylcholinesterase properties. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
|
18
|
Ozarowski M, Mikolajczak PL, Piasecka A, Kachlicki P, Kujawski R, Bogacz A, Bartkowiak-Wieczorek J, Szulc M, Kaminska E, Kujawska M, Jodynis-Liebert J, Gryszczynska A, Opala B, Lowicki Z, Seremak-Mrozikiewicz A, Czerny B. Influence of the Melissa officinalis Leaf Extract on Long-Term Memory in Scopolamine Animal Model with Assessment of Mechanism of Action. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:9729818. [PMID: 27239217 PMCID: PMC4864554 DOI: 10.1155/2016/9729818] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/03/2015] [Indexed: 01/19/2023]
Abstract
Melissa officinalis (MO, English: lemon balm, Lamiaceae), one of the oldest and still most popular aromatic medicinal plants, is used in phytomedicine for the prevention and treatment of nervous disturbances. The aim of our study was to assess the effect of subchronic (28-fold) administration of a 50% ethanol extract of MO leaves (200 mg/kg, p.o.) compared with rosmarinic acid (RA, 10 mg/kg, p.o.) and huperzine A (HU, 0.5 mg/kg, p.o.) on behavioral and cognitive responses in scopolamine-induced rats. The results were linked with acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), and beta-secretase (BACE-1) mRNA levels and AChE and BuChE activities in the hippocampus and frontal cortex of rats. In our study, MO and HU, but not RA, showed an improvement in long-term memory. The results were in line with mRNA levels, since MO produced a decrease of AChE mRNA level by 52% in the cortex and caused a strong significant inhibition of BACE1 mRNA transcription (64% in the frontal cortex; 50% in the hippocampus). However, the extract produced only an insignificant inhibition of AChE activity in the frontal cortex. The mechanisms of MO action are probably more complicated, since its role as a modulator of beta-secretase activity should be taken into consideration.
Collapse
Affiliation(s)
- Marcin Ozarowski
- Department of Pharmaceutical Botany and Plant Biotechnology, Poznan University of Medical Sciences, Sw. Marii Magdaleny 14, 61-861 Poznan, Poland
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Przemyslaw L. Mikolajczak
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
- Department of Pharmacology, University of Medical Sciences, Rokietnicka 5a, 60-806 Poznan, Poland
| | - Anna Piasecka
- Department of Pathogen Genetics and Plant Resistance, Metabolomics Team, Institute of Plant Genetics of the Polish Academy of Science, Strzeszynska 34, 60-479 Poznan, Poland
| | - Piotr Kachlicki
- Department of Pathogen Genetics and Plant Resistance, Metabolomics Team, Institute of Plant Genetics of the Polish Academy of Science, Strzeszynska 34, 60-479 Poznan, Poland
| | - Radoslaw Kujawski
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Anna Bogacz
- Laboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, University of Medical Sciences, 14 Sw. Marii Magdaleny, 61-861 Poznan, Poland
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Joanna Bartkowiak-Wieczorek
- Laboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, University of Medical Sciences, 14 Sw. Marii Magdaleny, 61-861 Poznan, Poland
| | - Michal Szulc
- Department of Pharmacology, University of Medical Sciences, Rokietnicka 5a, 60-806 Poznan, Poland
| | - Ewa Kaminska
- Department of Pharmacology, University of Medical Sciences, Rokietnicka 5a, 60-806 Poznan, Poland
| | - Malgorzata Kujawska
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznan, Poland
| | - Jadwiga Jodynis-Liebert
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznan, Poland
| | - Agnieszka Gryszczynska
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Bogna Opala
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Zdzislaw Lowicki
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
| | - Agnieszka Seremak-Mrozikiewicz
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
- Division of Perinatology and Women's Diseases, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland
- Laboratory of Molecular Biology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland
| | - Boguslaw Czerny
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznan, Poland
- Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University, Zolnierska 48, 70-204 Szczecin, Poland
| |
Collapse
|
19
|
Ferlemi AV, Katsikoudi A, Kontogianni VG, Kellici TF, Iatrou G, Lamari FN, Tzakos AG, Margarity M. Rosemary tea consumption results to anxiolytic- and anti-depressant-like behavior of adult male mice and inhibits all cerebral area and liver cholinesterase activity; phytochemical investigation and in silico studies. Chem Biol Interact 2015; 237:47-57. [PMID: 25910439 DOI: 10.1016/j.cbi.2015.04.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/24/2015] [Accepted: 04/12/2015] [Indexed: 01/22/2023]
Abstract
Our aim was to investigate the possible effects of regular drinking of Rosmarinus officinalis L. leaf infusion on behavior and on AChE activity of mice. Rosemary tea (2% w/w) phytochemical profile was investigated through LC/DAD/ESI-MS(n). Adult male mice were randomly divided into two groups: "Rosemary-treated" that received orally the rosemary tea for 4weeks and "control" that received drinking water. The effects of regular drinking of rosemary tea on behavioral parameters were assessed by passive avoidance, elevated plus maze and forced swimming tests. Moreover, its effects on cerebral and liver cholinesterase (ChE) isoforms activity were examined colorimetricaly. Phytochemical analysis revealed the presence of diterpenes, flavonoids and hydroxycinnamic derivatives in rosemary tea; the major compounds were quantitatively determined. Its consumption rigorously affected anxiety/fear and depression-like behavior of mice, though memory/learning was unaffected. ChE isoforms activity was significantly decreased in brain and liver of "rosemary treated" mice. In order to explain the tissue ChE inhibition, principal component analysis, pharmacophore alignment and molecular docking were used to explore a possible relationship between main identified compounds of rosemary tea, i.e. rosmarinic acid, luteolin-7-O-glucuronide, caffeic acid and known AChE inhibitors. Results revealed potential common pharmacophores of the phenolic components with the inhibitors. Our findings suggest that rosemary tea administration exerts anxiolytic and antidepressant effects on mice and inhibits ChE activity; its main phytochemicals may function in a similar way as inhibitors.
Collapse
Affiliation(s)
- Anastasia-Varvara Ferlemi
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 26504 Rio, Greece
| | - Antigoni Katsikoudi
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 26504 Rio, Greece
| | - Vassiliki G Kontogianni
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, GR-45110 Ioannina, Greece
| | - Tahsin F Kellici
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, GR-45110 Ioannina, Greece; Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis, Zografou 15771, Greece
| | - Grigoris Iatrou
- Plant Division, Department of Biology, University of Patras, 26504 Rio, Greece
| | - Fotini N Lamari
- Laboratory of Pharmacognosy & Chemistry of Natural Products, Department of Pharmacy, University of Patras, 26504 Patras, Greece
| | - Andreas G Tzakos
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, GR-45110 Ioannina, Greece; CancerBiobank Center, University of Ioannina, GR45110 Ioannina, Greece.
| | - Marigoula Margarity
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 26504 Rio, Greece.
| |
Collapse
|
20
|
Hasanein P, Mahtaj AK. Ameliorative effect of rosmarinic acid on scopolamine-induced memory impairment in rats. Neurosci Lett 2015; 585:23-7. [PMID: 25445372 DOI: 10.1016/j.neulet.2014.11.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 11/08/2014] [Accepted: 11/17/2014] [Indexed: 12/31/2022]
Abstract
Rosmarinic acid (RA) is a natural phenol that exerts different biological activities, such as antioxidant activity and neuroprotective effects. In this study, we hypothesized that administration of RA (8, 16, and 32 mg/kg, p.o.) for 7 days would effect on scopolamine-induced cognitive dysfunction as an extensively used model of cognitive impairment. The rats were divided into 10 groups. The acquisition trial was done 1h after the last administration of RA. Animals were divided into control, RA (8, 16, and 32 mg/kg) and donepezil (2 mg/kg) treated controls, scopolamine, RA (8, 16, and 32 mg/kg), and donepezil (2 mg/kg) treated scopolamine groups. Memory impairment was induced by scopolamine treatment (1 mg/kg, i.p.) 30 min after the administration of RA, donepezil, or saline. Scopolamine administration caused cognition deficits in the PAL and memory paradigm. While orally RA administration (16 and 32 mg/kg) improved learning and memory in control rats, it reversed learning and memory deficits of scopolamine received groups. Administration of RA at the dose of 8 mg/kg did not alter cognitive function in control and scopolamine treated groups. The combination of anticholinesterase, neuroprotective, and antioxidant properties of RA may all be responsible for the observed effects. These results indicate the beneficial effects of subchronic RA administration in passive avoidance learning and memory in control rats as well as in a pharmacological model of cholinergic deficit which continue to expand the knowledge base in creating new treatment strategies for cognition deficits and dementia. Of course, further studies are warranted for clinical use of RA in the management of demented subjects.
Collapse
Affiliation(s)
- Parisa Hasanein
- Department of Biology, School of Basic Sciences, Bu-Ali Sina University, Hamedan, Iran.
| | - Azam Kazemian Mahtaj
- Department of Biology, School of Basic Sciences, Bu-Ali Sina University, Hamedan, Iran
| |
Collapse
|
21
|
Fechner P, Bleher O, Ewald M, Freudenberger K, Furin D, Hilbig U, Kolarov F, Krieg K, Leidner L, Markovic G, Proll G, Pröll F, Rau S, Riedt J, Schwarz B, Weber P, Widmaier J. Size does matter! Label-free detection of small molecule-protein interaction. Anal Bioanal Chem 2014; 406:4033-51. [PMID: 24817356 DOI: 10.1007/s00216-014-7834-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/07/2014] [Accepted: 04/11/2014] [Indexed: 11/28/2022]
Abstract
This review is focused on methods for detecting small molecules and, in particular, the characterisation of their interaction with natural proteins (e.g. receptors, ion channels). Because there are intrinsic advantages to using label-free methods over labelled methods (e.g. fluorescence, radioactivity), this review only covers label-free techniques. We briefly discuss available techniques and their advantages and disadvantages, especially as related to investigating the interaction between small molecules and proteins. The reviewed techniques include well-known and widely used standard analytical methods (e.g. HPLC-MS, NMR, calorimetry, and X-ray diffraction), newer and more specialised analytical methods (e.g. biosensors), biological systems (e.g. cell lines and animal models), and in-silico approaches.
Collapse
Affiliation(s)
- Peter Fechner
- Biametrics GmbH, Auf der Morgenstelle 18, 72076, Tübingen, Germany,
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Unione L, Galante S, Díaz D, Cañada FJ, Jiménez-Barbero J. NMR and molecular recognition. The application of ligand-based NMR methods to monitor molecular interactions. MEDCHEMCOMM 2014. [DOI: 10.1039/c4md00138a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
NMR allows the monitoring of molecular recognition processes in solution. Nowadays, a plethora of NMR methods are available to deduce the key features of the interaction from both the ligand or the receptor points of view.
Collapse
Affiliation(s)
- Luca Unione
- Chemical and Physical Biology
- Centro de Investigaciones Biológicas
- CSIC
- 28040 Madrid, Spain
| | - Silvia Galante
- Chemical and Physical Biology
- Centro de Investigaciones Biológicas
- CSIC
- 28040 Madrid, Spain
| | - Dolores Díaz
- Chemical and Physical Biology
- Centro de Investigaciones Biológicas
- CSIC
- 28040 Madrid, Spain
| | - F. Javier Cañada
- Chemical and Physical Biology
- Centro de Investigaciones Biológicas
- CSIC
- 28040 Madrid, Spain
| | - Jesús Jiménez-Barbero
- Chemical and Physical Biology
- Centro de Investigaciones Biológicas
- CSIC
- 28040 Madrid, Spain
| |
Collapse
|
23
|
Cacabelos R, Cacabelos P, Torrellas C, Tellado I, Carril JC. Pharmacogenomics of Alzheimer's disease: novel therapeutic strategies for drug development. Methods Mol Biol 2014; 1175:323-556. [PMID: 25150875 DOI: 10.1007/978-1-4939-0956-8_13] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a major problem of health and disability, with a relevant economic impact on our society. Despite important advances in pathogenesis, diagnosis, and treatment, its primary causes still remain elusive, accurate biomarkers are not well characterized, and the available pharmacological treatments are not cost-effective. As a complex disorder, AD is a polygenic and multifactorial clinical entity in which hundreds of defective genes distributed across the human genome may contribute to its pathogenesis. Diverse environmental factors, cerebrovascular dysfunction, and epigenetic phenomena, together with structural and functional genomic dysfunctions, lead to amyloid deposition, neurofibrillary tangle formation, and premature neuronal death, the major neuropathological hallmarks of AD. Future perspectives for the global management of AD predict that genomics and proteomics may help in the search for reliable biomarkers. In practical terms, the therapeutic response to conventional drugs (cholinesterase inhibitors, multifactorial strategies) is genotype-specific. Genomic factors potentially involved in AD pharmacogenomics include at least five categories of gene clusters: (1) genes associated with disease pathogenesis; (2) genes associated with the mechanism of action of drugs; (3) genes associated with drug metabolism (phase I and II reactions); (4) genes associated with drug transporters; and (5) pleiotropic genes involved in multifaceted cascades and metabolic reactions. The implementation of pharmacogenomic strategies will contribute to optimize drug development and therapeutics in AD and related disorders.
Collapse
Affiliation(s)
- Ramón Cacabelos
- Chair of Genomic Medicine, Camilo José Cela University, 28692, Villanueva de la Cañada, Madrid, Spain,
| | | | | | | | | |
Collapse
|
24
|
Lancelot N, Piotto M, Theret I, Lesur B, Hennig P. Applications of NMR screening techniques to the pharmaceutical target Checkpoint kinase 1. J Pharm Biomed Anal 2013; 93:125-35. [PMID: 24280017 DOI: 10.1016/j.jpba.2013.10.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 10/17/2013] [Accepted: 10/21/2013] [Indexed: 10/26/2022]
Abstract
Ligand screening techniques based on NMR spectroscopy are not as sensitive as other commonly used methods like fluorescence, radiolabeling and surface plasmon resonance. However, using modern NMR instrumentation, they can achieve reliable screening under near physiological condition using as little as 4.6 nmol of receptor and 100 nmol of ligand. Additionally, these NMR methods can also provide valuable and specific information on the ligand under investigation such as the dissociation constant KD, the binding epitope and most importantly some structural information on the actual conformation in the bound state. In this manuscript, we describe the use of NMR based screening techniques ("Saturation Transfer Difference" (STD) and "Water Ligand Observed via Gradient SpectroscopY" (WaterLOGSY)) to detect small therapeutic molecules that interact with the DNA damage checkpoint enzyme Checkpoint kinase 1 (Chk1). After the identification of the most potent ligand, we used specific NMR experiments to perform the epitope mapping of this ligand ("Group epitope mapping-STD" (GEM-STD), "Difference of Inversion REcovery rate with and without Target IrradiatiON" (DIRECTION)) and to characterize its bound conformation ("Transferred-Nuclear Overhauser Effect SpectroscopY" (tr-NOESY), "Transferred-Rotating frame Overhauser Effect SpectroscopY" (tr-ROESY)). Finally, we used molecular docking procedures to position the ligand within the active site of Chk1. On the experimental level, a comparison between NMR studies performed in a 90%H2O/10%D2O buffer and a 100% D2O buffer is also presented and discussed.
Collapse
Affiliation(s)
- N Lancelot
- Institut de Recherches Servier, Analytical and Physical Chemistry Department, 11 rue des Moulineaux, 92150 Suresnes, France.
| | - M Piotto
- Bruker BioSpin, Laboratoire d'applications RMN, 34 rue de l'industrie, 67166 Wissembourg, France.
| | - I Theret
- Institut de Recherches Servier, Chimie Partenariats et Modélisation Moléculaire, 125 Chemin de Ronde, 78290 Croissy-Sur-Seine, France
| | - B Lesur
- Institut de Recherches Servier, Chimie Partenariats et Modélisation Moléculaire, 125 Chemin de Ronde, 78290 Croissy-Sur-Seine, France
| | - P Hennig
- Institut de Recherches Servier, Analytical and Physical Chemistry Department, 11 rue des Moulineaux, 92150 Suresnes, France
| |
Collapse
|