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Sahu G, Sahu K, Patra SA, Mohapatra D, Khangar R, Sengupta S, Dinda R. Hydrolytically Stable Ti IV-Hydrazone-Based Metallodrugs: Protein Interaction and Anticancer Potential. ACS APPLIED BIO MATERIALS 2023; 6:5360-5371. [PMID: 38019535 DOI: 10.1021/acsabm.3c00629] [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] [Indexed: 11/30/2023]
Abstract
In this work, three titanium(IV) [TiIV(L1-3)2] (1-3) complexes have been reported using three different tridentate dibasic ONO donor hydrazone ligands, pyridine-4-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L1), furan-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L2), and thiophene-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L3) tethered with heterocyclic moieties. Elemental analysis, FT-IR, UV-vis, NMR, HR-ESI-MS, and single-crystal X-ray analysis have been used to characterize H2L1-3 and 1-3. In solid structures of 1-3, two ligand molecules with N2O4 donor sets give distorted octahedral geometries to the metal center. The aqueous stability of 1-3 was investigated and well correlated to their perceived pharmacological results. During the investigation, all three complexes were found to be hydrolytically stable in a 90% DMSO-d6/10% D2O (v/v) medium up to 48 h. Furthermore, the interaction of 1-3 with bovine serum albumin (BSA) was tested using fluorescence and absorption techniques. The complexes showed static quenching with a biomolecular quenching constant of Kq ∼ 1013 proposing a high affinity of complexes for BSA. Finally, the anticancer potential of 1-3 was tested against HeLa, A549, and NIH-3T3 cell lines. Among all, 1 with an IC50 value of 11.6 ± 1.1 μM against HeLa cells was found to be the most cytotoxic in the series. Furthermore, it has been found that the compounds induce an apoptotic mode of cell death, which is confirmed by the live cell confocal microscopy and flow cytometry techniques.
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Affiliation(s)
- Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Kausik Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Deepika Mohapatra
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Ravi Khangar
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Swaraj Sengupta
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835215, India
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha 769008, India
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Suryawanshi MR, Kanhed AM, Kulkarni VM, Bhosale SH, Yadav MR. Design, synthesis, and computational studies of phenylacetamides as antidepressant agents. Mol Divers 2022; 26:3157-3172. [PMID: 35128584 PMCID: PMC8818363 DOI: 10.1007/s11030-021-10374-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 12/22/2021] [Indexed: 11/17/2022]
Abstract
In the present work, a hit molecule obtained from zinc ‘clean drug-like database’ by systematically performed computational studies was modified chemically to obtain different derivatives (VS1–VS25). Structures of synthesized derivatives were confirmed by IR, 1H-NMR, 13C-NMR, 13C-DEPT, MS, and elemental analysis. All the synthesized compounds were biologically evaluated for their antidepressant activity by using tail suspension test and forced swimming test in albino mice. All these derivatives showed moderate to good antidepressant activity. The most potent compound (VS25) among the synthesized compounds showed better antidepressant potential than the standard drugs moclobemide, imipramine, and fluoxetine. To understand the time-dependent interactions of this most active compound with MAO-A molecular dynamics was carried out and reported here. Additionally, acute oral toxicity was performed for the most active compound as per OECD guidelines.
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Xavier T, Condon S, Pichon C, Le Gall E, Presset M. Substituted Malonic Acid Half Oxyesters (SMAHOs): Greener Nucleophiles for Organic Synthesis. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tania Xavier
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | - Sylvie Condon
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | | | - Erwan Le Gall
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | - Marc Presset
- Institut de Chimie et des Materiaux Paris-Est C3M 2-8 Rue Henri Dunant94320 94320 Thiais FRANCE
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Xavier T, Condon S, Pichon C, Le Gall E, Presset M. Preparation of mono-substituted malonic acid half oxyesters (SMAHOs). Beilstein J Org Chem 2021; 17:2085-2094. [PMID: 34476015 PMCID: PMC8381853 DOI: 10.3762/bjoc.17.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 08/03/2021] [Indexed: 01/14/2023] Open
Abstract
The use of mono-substituted malonic acid half oxyesters (SMAHOs) has been hampered by the sporadic references describing their preparation. An evaluation of different approaches has been achieved, allowing to define the best strategies to introduce diversity on both the malonic position and the ester function. A classical alkylation step of a malonate by an alkyl halide followed by a monosaponification gave access to reagents bearing different substituents at the malonic position, including functionalized derivatives. On the other hand, the development of a monoesterification step of a substituted malonic acid derivative proved to be the best entry for diversity at the ester function, rather than the use of an intermediate Meldrum acid. Both these transformations are characterized by their simplicity and efficiency, allowing a straightforward access to SMAHOs from cheap starting materials.
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Affiliation(s)
- Tania Xavier
- Université Paris Est Créteil, CNRS, ICMPE, 2 rue Henri Dunant, F-94320 Thiais, France
| | - Sylvie Condon
- Université Paris Est Créteil, CNRS, ICMPE, 2 rue Henri Dunant, F-94320 Thiais, France
| | - Christophe Pichon
- Université Paris Est Créteil, CNRS, ICMPE, 2 rue Henri Dunant, F-94320 Thiais, France
| | - Erwan Le Gall
- Université Paris Est Créteil, CNRS, ICMPE, 2 rue Henri Dunant, F-94320 Thiais, France
| | - Marc Presset
- Université Paris Est Créteil, CNRS, ICMPE, 2 rue Henri Dunant, F-94320 Thiais, France
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Stukalin Y, Lan A, Einat H. Revisiting the validity of the mouse tail suspension test: Systematic review and meta-analysis of the effects of prototypic antidepressants. Neurosci Biobehav Rev 2020; 112:39-47. [PMID: 32006552 DOI: 10.1016/j.neubiorev.2020.01.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 12/26/2019] [Accepted: 01/28/2020] [Indexed: 01/18/2023]
Abstract
Animal models in neuropsychiatric research need validation. One way to address external validity is systematic reviews and meta-analyses. The present study presents a meta-analysis of the effects of antidepressants in the mouse tail suspension test (TST). A PubMed search identified studies that examined imipramine and fluoxetine effects in the TST. Inclusion criteria were testing in the light phase; trial duration was six minutes; immobility time scored 6 or (last) 4 min; adult mice; acute intraperitoneal (IP) administration. Effect sizes (ES) were estimated using Cohen's d, heterogeneity of ES with Cochran's Q test, correlations between dose and ES with Pearson's correlation and differences between strains with Analysis of variance. Results show that antidepressants decrease immobility time in the TST and a correlation between drug dose and ES but no effects of strain. We suggest that the TST is a valid tool to quantitatively, consistently and reproducibly capture the immobility-reducing aspects of fluoxetine and imipramine and that the lack of strain effects is due to small number of experiments in many of the strains.
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Affiliation(s)
- Yelena Stukalin
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel
| | - Anat Lan
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel; The open University, Israel
| | - Haim Einat
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel.
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Chen YL, Kong X, Xie Y, Hider RC. The interaction of pyridoxal isonicotinoyl hydrazone (PIH) and salicylaldehyde isonicotinoyl hydrazone (SIH) with iron. J Inorg Biochem 2017; 180:194-203. [PMID: 29329026 DOI: 10.1016/j.jinorgbio.2017.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/06/2017] [Accepted: 12/10/2017] [Indexed: 01/23/2023]
Abstract
The interaction of pyridoxal isonicotinoyl hydrazone (PIH) and salicylaldehyde isonicotinoyl hydrazone (SIH), two important biologically active chelators, with iron has been investigated by spectrophotometric methods. High iron(III) affinity constants were determined for PIH, logβ2=37.0 and SIH, logβ2=37.6. The associated redox potentials of the iron complexes were determined using cyclic voltammetry at pH7.4 as +130mV (vs normal hydrogen electrode, NHE) for PIH and +136mV(vs NHE) for SIH. These redox potentials are much higher than those corresponding to iron chelators in clinical use, namely deferiprone, -620mV; desferasirox, -600mV and desferrioxamine, -468mV. Although the positive redox potentials of SIH and PIH are similar to that of EDTA, namely +120mV, the iron complexes of these two hydrazone chelators, unlike the iron complex of EDTA, do not redox cycle in the presence of vitamin C. These properties render PIH and SIH as excellent scavengers of iron, under biological conditions. Both SIH and PIH scavenge mononuclear iron(II) and iron(III) rapidly. These fast kinetic properties of the hydrazone-based chelators provide a ready explanation for the adoption of SIH in fluorescence-based methods for the quantification of cytosolic iron(II).
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Affiliation(s)
- Yu-Lin Chen
- Institute of Pharmaceutical Sciences, King's College London, 150 Stamford Street London SE1 9NH, UK
| | - Xiaole Kong
- Institute of Pharmaceutical Sciences, King's College London, 150 Stamford Street London SE1 9NH, UK
| | - Yuanyuan Xie
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, PR China
| | - Robert C Hider
- Institute of Pharmaceutical Sciences, King's College London, 150 Stamford Street London SE1 9NH, UK.
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Soares RR, da Silva JMF, Carlos BC, da Fonseca CC, de Souza LSA, Lopes FV, de Paula Dias RM, Moreira POL, Abramo C, Viana GHR, de Pila Varotti F, da Silva AD, Scopel KKG. New quinoline derivatives demonstrate a promising antimalarial activity against Plasmodium falciparum in vitro and Plasmodium berghei in vivo. Bioorg Med Chem Lett 2015; 25:2308-13. [PMID: 25920564 DOI: 10.1016/j.bmcl.2015.04.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/01/2015] [Accepted: 04/08/2015] [Indexed: 11/19/2022]
Abstract
Malaria continues to be an important public health problem in the world. Nowadays, the widespread parasite resistance to many drugs used in antimalarial therapy has made the effective treatment of cases and control of the disease a constant challenge. Therefore, the discovery of new molecules with good antimalarial activity and tolerance to human use can be really important in the further treatment of the disease. In this study we have investigated the antiplasmodial activity of 10 synthetic compounds derived from quinoline, five of them combined to sulfonamide and five to the hydrazine or hydrazide group. The compounds were evaluated according to their cytotoxicity against HepG2 and HeLa cell lines, their antimalarial activity against CQ-sensitive and CQ-resistant Plasmodium falciparum strains and, finally, their schizonticide blood action in mice infected with Plasmodium berghei NK65. The compounds exhibited no cytotoxic action in HepG2 and HeLa cell lines when tested up to a concentration of 100 μg/mL. In addition, the hydrazine or hydrazide derivative compounds were less cytotoxic against cell lines and more active against CQ-sensitive and CQ-resistant P. falciparum strains, showing high SI (>1000 when SI was calculated using the CC50 from the 3D7 strain as reference). When tested in vivo, the hydrazine derivative 1f compound showed activity against the development of blood parasites similar to that observed with CQ, the reference drug. Interestingly, the 1f compound demonstrated the best LipE value (4.84) among all those tested in vivo. Considering the in vitro and in vivo activities of the compounds studied here and the LipE values, we believe the 1f compound to be the most promising molecule for further studies in antimalarial chemotherapy.
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Affiliation(s)
- Roberta Reis Soares
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - José Marcio Fernandes da Silva
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Bianca Cecheto Carlos
- Instituto de Biotecnologia (IBTEC), Universidade Estadual Paulista, Alameda dos Tecomarias, s/n, 18607-440 Botucatu, SP, Brazil.
| | - Camila Campos da Fonseca
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Laila Salomé Araújo de Souza
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Fernanda Valério Lopes
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Rafael Mafra de Paula Dias
- Instituto de Química de São Carlos, Universidade de São Paulo. Avenida João Dagnone, n° 1100, Jardim Santa Angelina, 13563-120 São Carlos, SP, Brazil.
| | - Paulo Otávio Lourenço Moreira
- Núcleo de Pesquisa em Química Biológica (NQBio), Universidade de São João Del Rei, Rua Sebastião Gonçalves Coelho, Chanadour, 35501-296 Divinópolis, MG, Brazil.
| | - Clarice Abramo
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Gustavo Henrique Ribeiro Viana
- Núcleo de Pesquisa em Química Biológica (NQBio), Universidade de São João Del Rei, Rua Sebastião Gonçalves Coelho, Chanadour, 35501-296 Divinópolis, MG, Brazil.
| | - Fernando de Pila Varotti
- Núcleo de Pesquisa em Química Biológica (NQBio), Universidade de São João Del Rei, Rua Sebastião Gonçalves Coelho, Chanadour, 35501-296 Divinópolis, MG, Brazil.
| | - Adilson David da Silva
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil.
| | - Kézia Katiani Gorza Scopel
- Departamento de Parasitologia, Microbiologia e Imunologia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n, Martelos, 36036-900 Juiz de Fora, MG, Brazil; Departamento of Global Health, University of South Florida, 3720 Spectrun Blvd, suit 304, Tampa, FL 33612, USA.
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Kumbhare RM, Kosurkar UB, Bagul PK, Kanwal A, Appalanaidu K, Dadmal TL, Banerjee SK. Synthesis and evaluation of novel triazoles and mannich bases functionalized 1,4-dihydropyridine as angiotensin converting enzyme (ACE) inhibitors. Bioorg Med Chem 2014; 22:5824-30. [DOI: 10.1016/j.bmc.2014.09.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/09/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
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Kalász H, Nurulain SM, Veress G, Antus S, Darvas F, Adeghate E, Adem A, Hashemi F, Tekes K. Mini review on blood-brain barrier penetration of pyridinium aldoximes. J Appl Toxicol 2014; 35:116-23. [PMID: 25291712 DOI: 10.1002/jat.3048] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/14/2014] [Accepted: 06/16/2014] [Indexed: 01/27/2023]
Abstract
This paper reviews the blood-brain barrier (BBB) penetration of newly developed pyridinium aldoximes. Pyridinium aldoximes are highly charged hydrophilic compounds used in the treatment of subjects exposed to organophosphonates because they are effective as acetylcholinesterase reactivators. Pyridinium aldoximes have antidotal effects against poisoning with cholinesterase inhibitors, a frequent problem affecting people working with organophosphate-based insecticides and pesticides. Toxic organophosphonate products such as sarin and tabun can be used by terrorists as chemical warfare agents. This poses a severe challenge to all innocent and peace-loving people worldwide. This review gives a brief summary of BBB transporters and description of the current in vitro and in vivo methods for the characterization of BBB penetration of established and novel pyridinium aldoximes. The authors provide a putative mechanism of penetration, outline some future ways of formulation and discuss the possible advantages and disadvantages of increasing BBB penetration.
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Affiliation(s)
- H Kalász
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089, Budapest, Nagyvárad tér 4, Hungary; Department of Pharmacology and Therapeutics, CMHS, United Arab Emirates University, Al Ain, P.O.Box 17666, United Arab Emirates
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Bhardwaj YR, Pareek A, Jain V, Kishore D. Chemical delivery systems and soft drugs: Retrometabolic approaches of drug design. Saudi Pharm J 2014; 22:290-302. [PMID: 25161372 PMCID: PMC4142369 DOI: 10.1016/j.jsps.2013.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 04/30/2013] [Indexed: 11/27/2022] Open
Abstract
Inclusion of metabolic considerations in the drug design process leads to significant development in the field of chemical drug targeting and the design of safer drugs during past few years which is a part of an approach now designated as Retro metabolic drug design (RMDD). This approach represents systematic methodologies that integrate structure-activity and structure-metabolism relationships and are aimed to design safe, locally active compounds with an improved therapeutic index. It embraces two distinct methods, chemical delivery systems and a soft drug approach. Present review recapitulates an impression of RMDD giving reflections on the chemical delivery system and the soft drug approach and provides a variety of examples to embody its concepts. Successful application of such design principles has already been applied to a number of marketed drugs like esmolol; loteprednol etc., and many other candidates like beta blockers, ACE inhibitors, alkylating agents, antimicrobials etc., are also under investigation.
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Affiliation(s)
| | - Ashutosh Pareek
- Department of Pharmacy, Banasthali University, Banasthali-304022, Rajasthan, India
| | - Vivek Jain
- Department of Pharmacy, Banasthali University, Banasthali-304022, Rajasthan, India
| | - Dharma Kishore
- Department of Chemistry, Banasthali University, Banasthali-304022, Rajasthan, India
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Prasanthi G, Prasad K, Bharathi K. Synthesis, anticonvulsant activity and molecular properties prediction of dialkyl 1-(di(ethoxycarbonyl)methyl)-2,6-dimethyl-4-substituted-1,4-dihydropyridine-3,5-dicarboxylates. Eur J Med Chem 2014; 73:97-104. [DOI: 10.1016/j.ejmech.2013.12.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 11/22/2013] [Accepted: 12/03/2013] [Indexed: 10/25/2022]
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12
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Polonini HC, Dias RM, Souza IO, Gonçalves KM, Gomes TB, Raposo NR, da Silva AD. Quinolines derivatives as novel sunscreening agents. Bioorg Med Chem Lett 2013; 23:4506-10. [DOI: 10.1016/j.bmcl.2013.06.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/12/2013] [Accepted: 06/17/2013] [Indexed: 01/29/2023]
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13
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Mahmoud S, Mohammad A. Brain-Specific Delivery of Naproxen Using Different Carrier Systems. Arch Pharm (Weinheim) 2010; 343:639-47. [DOI: 10.1002/ardp.201000105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Abdel-Aziz M, Abuo-Rahma GEDAA, Hassan HA, Farag HH. N-malonyl-1,2-dihydroisoquinoline as a novel carrier for specific delivery of drugs to the brain. Arch Pharm (Weinheim) 2009; 343:54-60. [PMID: 19899103 DOI: 10.1002/ardp.200900109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
N-Malonyl-1,2-dihydroisoquinoline derivatives were synthesized and investigated as a novel carrier system for site-specific and sustained delivery of drugs to the brain. Such carriers are expected to be stable against air oxidation due to the presence of the carbonyl group close to nitrogen of the dihydroisoquinoline. Reduction of the prepared isoquinolinium quaternary derivatives with sodium dithionite afforded a novel group of N-malonyl-1,2-dihydroisoquinoline chemical delivery systems (CDS). The synthesized N-malonyl-1,2-dihydroisoquinoline chemical delivery systems were subjected to various chemical and biological investigations to evaluate their ability to cross the blood-brain barrier (BBB), and to be oxidized biologically into their corresponding quaternary derivatives. The in-vitro oxidation studies showed that the designed N-malonyl-1,2-dihydroisoquinoline chemical delivery system could be oxidized into its corresponding quaternary derivatives at an adequate rate. The in-vivo distribution studies showed that these N-malonyl-1,2-dihydroisoquinoline chemical delivery systems were able to cross the blood-brain barrier at detectable concentrations.
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Affiliation(s)
- Mohamed Abdel-Aziz
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia, Egypt.
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Foucout L, Gourand F, Dhilly M, Bohn P, Dupas G, Costentin J, Abbas A, Marsais F, Barré L, Levacher V. Synthesis, radiosynthesis and biological evaluation of 1,4-dihydroquinoline derivatives as new carriers for specific brain delivery. Org Biomol Chem 2009; 7:3666-73. [PMID: 19707670 DOI: 10.1039/b909650g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In spite of numerous reports dealing with the use of 1,4-dihydropyridines as carriers to deliver biological active compounds to the brain, this chemical delivery system (CDS) suffers from poor stability of the 1,4-dihydropyridine derivatives towards oxidation and hydration reactions seriously limiting further investigations in vivo. In an attempt to overcome these limitations, we report herein the first biological evaluation of more stable annellated NADH models in the quinoline series as relevant neuroactive drug-carrier candidates. The radiolabeled 1,4-dihydroquinoline [(11)C] was prepared to be subsequently peripherally injected in rats. The injected animals were sacrificed and brains were collected. The radioactivity measured in rat brain indicated a rapid penetration of the carrier [(11)C] into the CNS. HPLC analysis of brain homogenates showed that oxidation of [(11)C] into the corresponding quinolinium salt [(11)C] was completed in less than 5 min. An in vivo evaluation in mice is also reported to illustrate the potential of such 1,4-dihydroquinoline derivatives to transport a neuroactive drug in the CNS. For this purpose, gamma-aminobutyric acid (GABA), well known to poorly cross the brain blood barrier (BBB) was connected to this 1,4-dihydroquinoline-type carrier. After i.p. injection of 1,4-dihydroquinoline-GABA derivative in mice, a significant alteration of locomotor activity (LMA) was observed presumably resulting from an enhancement of central GABAergic activity. These encouraging results give strong evidence for the capacity of carrier-GABA derivative to cross the BBB and exert a pharmacological effect on the CNS. This study paves the way for further progress in designing new redox chemical delivery systems.
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Affiliation(s)
- Lénaïg Foucout
- Laboratoire de Chimie Organique Fine et Hétérocyclique, UMR 6014, IRCOF, CNRS, Université et INSA de Rouen, B.P. 08 F-76131, Mont-Saint-Aignan Cedex, France
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