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Wu G, Li B, Wei X, Chen Y, Zhao Y, Peng Y, Su J, Hu Z, Zhuo L, Tian Y, Wang Z, Peng X. Design, synthesis and biological evaluation of N-salicyloyl tryptamine derivatives as multifunctional neuroprotectants for the treatment of ischemic stroke. Eur J Med Chem 2024; 278:116795. [PMID: 39216381 DOI: 10.1016/j.ejmech.2024.116795] [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: 03/28/2024] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
Ischemic stroke (IS) is a disease of high death and disability worldwide with few medications in clinical treatment. Neuroinflammation and oxidative stress are considered as crucial factors in the progression of IS. In our previous studies, N-salicyloyl tryptamine derivative (NST) L7 exhibited promising anti-inflammatory properties and is considered a potential clinical therapy for IS but had limited antioxidant capacity. Here, we have designed, synthesized, and biologically evaluated 30 novel NSTs for their neuroprotective effects against cerebral ischemia-reperfusion (CI/R) injury. To identify a multifunctional neuroprotectant with enhanced antioxidant and anti-inflammatory capacity, as well as an effective therapeutic agent for CI/R damage. Among them, M11 exhibited synergistic highly anti-oxidant, anti-inflammatory, anti-ferroptosis, and anti-apoptosis effects and surpassed the parent compound L7. Further studies demonstrated that the synergistic and efficient neuroprotective role of M11 was mainly achieved by activating Nrf2 and stimulating its downstream target HO-1/GCLC/NQO1/GPX4. In addition, M11 possessed good blood-brain barrier permeability. Moreover, M11 effectively reduced cerebral infarct volume and improved neurological deficits in MCAO/R mice. Its hydrochloride form, M11·HCl, exhibited better pharmacokinetic properties, high safety, and a significant reduction in infarct volume, which is comparable to Edaravone. In conclusion, our findings suggested that M11 capable of activating Nrf2, could represent a promising candidate agent for IS.
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Affiliation(s)
- Genping Wu
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Bo Li
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xiuzhen Wei
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yaxin Chen
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yuting Zhao
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yan Peng
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Jianhui Su
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Zecheng Hu
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Linsheng Zhuo
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Ying Tian
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Zhen Wang
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; National Health Commission Key Laboratory of Birth Defect Research and Prevention Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, 410008, China; MOE Key Lab of Rare Pediatric Diseases, School of Life Sciences, Central South University, Changsha, 410000, China.
| | - Xue Peng
- The Affiliated Nanhua Hospital, School of Pharmaceutical Science, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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Divya Mohan R, Anaswara SA, Kulkarni NV, Bojilov DG, Manolov SP, Ivanov II, Al-Otaibi JS, Sheena Mary Y. Synthesis, Characterization and Assessment of Antioxidant and Melanogenic Inhibitory Properties of Edaravone Derivatives. Antioxidants (Basel) 2024; 13:1148. [PMID: 39334807 PMCID: PMC11429142 DOI: 10.3390/antiox13091148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2024] [Revised: 09/19/2024] [Accepted: 09/20/2024] [Indexed: 09/30/2024] Open
Abstract
A series of edaravone derivatives and the corresponding Cu(II) complexes were synthesized and characterized using spectroscopic and analytical techniques such as IR, UV, NMR and elemental analysis. Antioxidant activities of all compounds were examined using free radical scavenging methods such as hydrogen peroxide scavenging activity (HPSA), 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) assays. All of the tested compounds exhibited good antioxidant activity. Further, the frontier orbital energy levels, as well as various chemical properties, were determined using the density functional theory (DFT) calculations. The MEP maps of all of the derivatives were plotted to identify the nucleophilic and electrophilic reactive sites. Further, binding energies of all of the organic compounds with the protein tyrosinase was investigated to determine their potential anti-melanogenic applications. The selected ligand, L6 was subjected to molecular dynamics simulation analysis to determine the stability of the ligand-protein complex. The MD simulation was performed (150 ns) to estimate the stability of the tyrosinase-L6 complex. Other key parameters, such as, RMSD, RMSF, Rg, hydrogen bonds, SASA and MMPBSA were also analyzed to understand the interaction of L6 with the tyrosinase protein.
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Affiliation(s)
- R Divya Mohan
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri 690525, India
| | - S A Anaswara
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri 690525, India
| | - Naveen V Kulkarni
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri 690525, India
| | - Dimitar G Bojilov
- Department of Organic Chemistry, University of Plovdiv, 24 Tzar Assen str., 4000 Plovdiv, Bulgaria
| | - Stanimir P Manolov
- Department of Organic Chemistry, University of Plovdiv, 24 Tzar Assen str., 4000 Plovdiv, Bulgaria
| | - Iliyan I Ivanov
- Department of Organic Chemistry, University of Plovdiv, 24 Tzar Assen str., 4000 Plovdiv, Bulgaria
| | - Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Y Sheena Mary
- Department of Physics, FMNC, University of Kerala, Kollam 691001, India
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3
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Mohan RD, Kulkarni NV. Recent developments in the design of functional derivatives of edaravone and exploration of their antioxidant activities. Mol Divers 2024:10.1007/s11030-024-10940-7. [PMID: 39102113 DOI: 10.1007/s11030-024-10940-7] [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: 06/07/2024] [Accepted: 07/11/2024] [Indexed: 08/06/2024]
Abstract
Edaravone, a pyrazalone derivative, is an antioxidant and free radical scavenger used to treat oxidative stress-related diseases. It is a proven drug to mitigate conditions prevailing to oxidative stress by inhibiting lipid peroxidation, reducing inflammation, and thereby preventing endothelial cell death. In recent years, considerable interest has been given by researchers in the derivatization of edaravone by adding varieties of substituents of versatile steric and functional properties to improve its antioxidant and pharmacological activity. This review accounts all the important methods developed for the derivatization of edaravone and the impacts of the structural modifications on the antioxidant activity of the motif.
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Affiliation(s)
- R Divya Mohan
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690525, India
| | - Naveen V Kulkarni
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, 690525, India.
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Wang Y, Yang G, Shen H, Liang Y, Dong H, Guo X, Hao Q, Wang J. Hybrids of selective COX-2 inhibitors and active derivatives of edaravone as COX-2 selective NSAIDs with free radical scavenging activity: Design, synthesis and biological activities. Eur J Med Chem 2024; 266:116155. [PMID: 38266553 DOI: 10.1016/j.ejmech.2024.116155] [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: 11/29/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
Novel hybrids of selective COX-2 inhibitors (coxibs) and active derivatives of free radical scavenger edaravone were designed to overcome the risk of cardiovascular events and stroke increased by NSAIDs (nonsteroidal anti-inflammatory drugs) in this study. All the hybrids were assayed for the COX-2 inhibitory and DPPH (2, 2-diphenyl-1-picrylhydrazyl) free radical scavenging activities in vitro. Finally, we found a series of hybrids with good inhibitory activity and selectivity of COX-2 and excellent free radical scavenging activity in vitro. The most promising compound 6a (WYZ90) exhibited very potent COX-2 inhibitory activity (COX-2, IC50 = 75 nM), weak COX-1 inhibitory activity (COX-1, IC50 = 5734 nM), better free radical scavenging activity (DPPH, IC50 = 19.9 μM) than edaravone, moderate drug-likeness and ADME properties in silico, acceptable pharmacokinetic properties (T1/2 = 4.16 h, 10 mg/kg, o.p.) and oral bioavailability (F% = 36.03 %) in mice. In addition, compound WYZ90 showed similar analgesic activity to the selective COX-2 inhibitor celecoxib in acetic acid-induced mice and better antioxidant activity in Fe2+-induced lipid peroxidation in mouse liver tissue homogenate than edaravone. In conclusion, this study provided a novel class of coxibs containing edaravone moiety as COX-2 selective NSAIDs with free radical scavenging activity and the candidate compound WYZ90 showed not only similar selective COX-2 inhibitory and analgesic activity to celecoxib but also better free radical scavenging and antioxidant activity than edaravone.
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Affiliation(s)
- Youzhi Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Guoqing Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Huizhen Shen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Ying Liang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Haijuan Dong
- The Public Laboratory Platform, China Pharmaceutical University, Nanjing, 210009, China
| | - Ximing Guo
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Qingjing Hao
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Jinxin Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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Bonato Wille AP, Pereira da Motta K, Pinto Brites N, Luchese C, Frederico Schumacher R, Antunes Wilhelm E. Synthesis and investigation of new indole-containing vinyl sulfide derivatives: In silico and in vitro studies for potential therapeutic applications. Chem Biodivers 2024; 21:e202301460. [PMID: 38117615 DOI: 10.1002/cbdv.202301460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 12/22/2023]
Abstract
Indoles featuring organosulfur compounds serve as privileged structural scaffolds in various biologically active compounds. This study investigates the biological properties of five synthetic sulphenyl vinyl indoles (3 a-e) using both in silico and in vitro methods. Computational analyses employing Swiss ADME and Molinspiration software reveal the remarkable inhibitory activity of compound 3 d against proteases and kinases (scores of 0.18 and 0.06, respectively). Furthermore, it demonstrates the ability to modulate ionic and G protein-coupled receptors (scores: -0.06 and 0.31, respectively) and serves as a ligand for nuclear receptors (score 0.15). In vitro investigations highlight the compounds' efficacy in countering ABTS+ radical attacks and reducing lipid peroxidation levels. Particularly noteworthy is the superior efficacy of compounds 3 a, 3 b, and 3 e in DPPH (EC50 3 a: 268.5 μM) and TEAC assays (EC50 3 a: 49.9 μM; EC50 3 b: 133.4 μM, and EC50 3 e: 84.9 μM), as well as TBARS levels. Compound 3 c significantly reduces acetylcholinesterase activity, positioning itself as a noteworthy enzyme inhibitor. This study emphasizes the versatile biological potential of synthetic indole derivatives, suggesting their applicability for therapeutic purposes.
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Affiliation(s)
- Ana Paula Bonato Wille
- Postgraduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical Pharmacology (LaFarBio), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, Pelotas, Brazil CEP, 96010-900, RS, Brazil
| | - Ketlyn Pereira da Motta
- Postgraduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical Pharmacology (LaFarBio), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, Pelotas, Brazil CEP, 96010-900, RS, Brazil
| | - Nathan Pinto Brites
- Department of Chemistry, Federal University of Santa Maria, Santa Maria Brazil, CEP, 97105-900, RS, Brazil
| | - Cristiane Luchese
- Postgraduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical Pharmacology (LaFarBio), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, Pelotas, Brazil CEP, 96010-900, RS, Brazil
| | | | - Ethel Antunes Wilhelm
- Postgraduate Program in Biochemistry and Bioprospecting, Research Laboratory in Biochemical Pharmacology (LaFarBio), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, Pelotas, Brazil CEP, 96010-900, RS, Brazil
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Colombo E, Olla S, Minnelli C, Formato A, Veroni C, Corbisiero S, Pericolo M, Siguri C, Mobbili G, Agresti C, Seneci P. Synthesis and Characterization of Edaravone Analogues as Remyelinating Agents and Putative Mechanistic Probes. Molecules 2023; 28:6928. [PMID: 37836771 PMCID: PMC10574562 DOI: 10.3390/molecules28196928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
Edaravone (EDA), an antioxidant drug approved for the treatment of ischemic stroke and amyotrophic lateral sclerosis, was recently proposed as a remyelinating candidate for the treatment of multiple sclerosis. Here, we synthesized twelve EDA analogues 2b-4c showing three substitution patterns A-C, searching for improved remyelinating agents and putative molecular targets responsible for their regenerative activity. We profiled them in three primary assays to determine their stimulation of oligodendrocyte progenitor cell metabolism (tetrazolium MTT assay), their antioxidant potential (2,2-diphenyl-1-picrylhydrazyl-DPPH assay) and to predict their bioavailability (virtual ADME profile). Active 4'-carboxylate 2b, 4'-ester 2c and N1-carbamate-4'-ester 4a were further characterized, justifying their in vitro effects and selecting 4a as a putative EDA 1 prodrug suitable for in vivo testing.
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Affiliation(s)
- Eleonora Colombo
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy; (E.C.); (M.P.)
| | - Stefania Olla
- Biomedical and Genetic Research Institute (IRGB, National Research Council (CNR)), University Campus, Monserrato, 09042 Monserrato, Italy; (S.O.); (C.S.)
| | - Cristina Minnelli
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy; (C.M.); (G.M.)
| | - Alessia Formato
- Department of Neuroscience, National Institute of Health (ISS), Viale Regina Elena 299, 00161 Rome, Italy; (A.F.); (C.V.); (S.C.)
| | - Caterina Veroni
- Department of Neuroscience, National Institute of Health (ISS), Viale Regina Elena 299, 00161 Rome, Italy; (A.F.); (C.V.); (S.C.)
| | - Silvia Corbisiero
- Department of Neuroscience, National Institute of Health (ISS), Viale Regina Elena 299, 00161 Rome, Italy; (A.F.); (C.V.); (S.C.)
| | - Mattia Pericolo
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy; (E.C.); (M.P.)
| | - Chiara Siguri
- Biomedical and Genetic Research Institute (IRGB, National Research Council (CNR)), University Campus, Monserrato, 09042 Monserrato, Italy; (S.O.); (C.S.)
| | - Giovanna Mobbili
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy; (C.M.); (G.M.)
| | - Cristina Agresti
- Department of Neuroscience, National Institute of Health (ISS), Viale Regina Elena 299, 00161 Rome, Italy; (A.F.); (C.V.); (S.C.)
| | - Pierfausto Seneci
- Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy; (E.C.); (M.P.)
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Efforts Towards Repurposing of Antioxidant Drugs and Active Compounds for Multiple Sclerosis Control. Neurochem Res 2023; 48:725-744. [PMID: 36385213 DOI: 10.1007/s11064-022-03821-8] [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: 08/02/2022] [Revised: 10/20/2022] [Accepted: 11/09/2022] [Indexed: 11/17/2022]
Abstract
Multiple Sclerosis (MS) is a degenerative disorder of the central nervous system (CNS) with complicated etiology that has not been clearly analyzed until nowadays. Apart from anti-inflammatory, immune modulatory and symptomatic treatments, which are the main tools towards MS control, antioxidant molecules may be of interest. Oxidative stress is a key condition implicated in the disease progression. Reactive species production is associated with immune cell activation in the brain as well as in the periphery, accounting for demyelinating and axonal disruptive processes. This review refers to research articles, of the last decade. It describes biological evaluation of antioxidant drugs, and molecules with pharmaceutical interest, which are not designed for MS treatment, however they seem to have potency against MS. Their antioxidant effect is accompanied, in most of the cases, by anti-inflammatory, immune-modulatory and neuroprotective properties. Compounds with such characteristics are expected to be beneficial in the treatment of MS, alone or as complementary therapy, improving some clinical and mechanistic aspects of the disease. This review also summarizes some of the pathobiological characteristics of MS, as well as the role of oxidative stress and inflammation in the progression of neurodegeneration. It presents known drugs and bioactive compounds with antioxidant, and in many cases, pleiotropic activity that have been tested for their efficacy in MS progression or the experimentally induced MS. Antioxidants may offer reduction or prevention of the disease symptoms and progression. Thus, their results may, combined with already applied treatments, be beneficial for the development of new molecules or the repurposing of drugs and supplements that are used with other indication so far.
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Kanwal M, Sarwar S, Nadeem H, Ata A, Shah FA, Malik S, Maqsood S, Miana GA. New pyrazolone derivatives, synthesis, characterization, and neuroprotective effect against PTZ- induced neuroinflammation in mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:1424-1432. [PMID: 36544531 PMCID: PMC9742570 DOI: 10.22038/ijbms.2022.62869.13912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 09/26/2022] [Indexed: 12/24/2022]
Abstract
Objectives The study was aimed at synthesis of the new derivatives of the pyrazolone nucleus, and their spectroscopic and pharmacological analysis and evaluation. Materials and Methods Three series of compounds, with 2-picolinic acid (I a-d), 3-picolinic acid (II a-d), and 4-picolinic acid (III a-d) were synthesized and characterized by FT-IR, 1HNMR, 13C NMR, elemental, and melting points. The new compounds were then evaluated for their anti-oxidant, anti-inflammatory, and anti-epileptic potential. The hind paw edema model was used to screen anti-inflammatory potential, while the anticonvulsant effect was evaluated by employing the acute model of anti-epileptic activity. The in vivo anti-oxidant potential was determined through glutathione (GSH), glutathione-S-transferase (GST), catalase, and lipid peroxidase enzyme (LPO) assays. The expression of key biomarkers involved in inflammation and neuroprotection, including tumor necrotic factors alpha (TNF-α) and phosphorylated nuclear factor kappa B (NF-κB), was detected through enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. Results The tested compounds showed anti-oxidant potential. The selected compounds exhibited good anti-inflammatory potential. The PTZ-induced elevation of these inflammatory mediators and oxidative stress were ameliorated significantly by the selected compound Ic. Results of molecular analysis (ELISA and Western blot analysis) for potent compound Ic showed a prominent inhibitory effect against neuroinflammatory mediators, including TNF-α and NF-κB. Conclusion It is concluded that the derivative Ic ameliorated PTZ-induced seizures, oxidative stress, and inflammatory cascades by regulating the NF-κB/ TNF-α/ROS pathway.
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Affiliation(s)
- Madiha Kanwal
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan, 44000 ,Corresponding author: Madiha Kanwal. Department of Pharmaceutical Chemistry, Riphah International University, Riphah Institute of Pharmaceutical Sciences, G-7/4, Campus, Islamabad. Pakistan.
| | - Sadia Sarwar
- Department of Pharmacognosy, Riphah International University, Islamabad, Pakistan, 44000
| | - Humaira Nadeem
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan, 44000
| | - Athar Ata
- Department of Chemistry, University of Manitoba, Canada
| | - Fawad A. Shah
- Department of Pharmacology, Riphah International University, Islamabad, Pakistan, 44000
| | - Sumra Malik
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan, 44000
| | - Saima Maqsood
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan, 44000
| | - Ghulam A. Miana
- Department of Pharmaceutical Chemistry, Riphah International University, Islamabad, Pakistan, 44000
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Bekhouche M, Benyammi R, Slaoui MK, Krimat S, Paris C, Khelifi L, Morsli A. Flavonoid profile and antioxidant properties of Algerian common yew (Taxus baccata L.). CLINICAL PHYTOSCIENCE 2022. [DOI: 10.1186/s40816-022-00348-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/06/2022] Open
Abstract
Abstract
Background
In humans, various diseases are associated with the accumulation of free radicals. The antioxidants can scavenge free radicals and reduce their impact; thus, the search for effective natural antioxidants of plant origin is indispensable. The present study aims to determine, for the first time, the flavonoid compounds profile and to investigate the free radical scavenging and antioxidant properties of the methanolic extract of Taxus baccata L. from Algeria.
Methods
The determination of the flavonoid compound profile of the methanolic extract of Taxus baccata L. was established using high-performance liquid chromatography with diode-array detection coupled to electrospray ionization tandem mass spectrometry (HPLC–DAD–ESI–MS/MS). The total flavonoid content (TFC) was performed according to the aluminum chloride colorimetric method, while the free radical scavenging and antioxidant activities were carried out using three methods, namely 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical assay, 2,2'-azino-bis3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical assay and ferric reducing antioxidant power (FRAP) Assay.
Results
A total of 26 compounds including flavon-3-ols, flavanonols, flavones, flavonols and bioflavonoids were characterized and identifiedusing HPLC–DAD–ESI–MS/MS analysis, five were reported for the first time such as taxifolin, apigenin, apigenin 7-O-glucoside, isorhamnetin 3-O-rutinoside and robustaflavone. The plant extract exhibited high total flavonoid content (TFC = 204.26 ± 6.02 mg RE/g dry extract) which corresponded to its strong radical scavenging activities [(DPPH IC50 = 35.31 ± 0.29 µg/ml and ABTS IC50 = 8.27 ± 0.52 µg/ml)] as compared to the synthetic antioxidant BHT [(DPPH IC50 = 78.96 ± 5.70 µg/ml and ABTS IC50 = 13.56 ± 0.06 µg/ml)]. However, the methanolic extract of T. baccata showed the lowest ferric reducing ability as compared to the positive controls (BHT, BHA, ascorbic acid, trolox and quercetin).
Conclusion
Our results imply that the Taxus Baccata L. might be a potential source for the isolation of natural antioxidant compounds.
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Laudadio E, Minnelli C, Mobbili G, Sabbatini G, Stipa P, Rusciano D, Galeazzi R. Salt effects on mixed composition membranes containing an antioxidant lipophilic edaravone derivative: a computational-experimental study. Org Biomol Chem 2022; 20:5784-5795. [PMID: 35822625 DOI: 10.1039/d2ob01143c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protection of lipid membranes against oxidation avoids diseases associated with oxidative stress. As a strategy to contrast it, functionalized lipids with antioxidant activity are used to become part of membranes thus protecting them. For this purpose, a lipophilic edaravone derivative has been synthesized, adding a C18 saturated chain to the original structure. The antioxidant activity of C18-Edv has been demonstrated in our previous work. In this study, molecular dynamics simulations have been performed to define the effects of NaCl, MgCl2, KCl, and CaCl2 salts on a palmitoyl-oleoyl-sn-glycero-phosphocholine (POPC) lipid bilayer encapsulating C18-Edv. The results showed how different salts influence POPC lateral diffusion, and the movements of C18-Edv heads, which are antioxidant moieties, were correlated to the ability of C18-Edv molecules to protect membranes. MgCl2 showed a negative impact leading to C18-Edv clusterization and membrane stretching, while KCl and NaCl showed a moderate influence on the mixed lipid membrane structure. CaCl2 increased the exposure of the C18-Edv heads to the lipid-water interface, resulting in the salt with a higher propensity to guarantee protection against radicals in the aqueous phase. Finally, C18-Edv-POPC liposomes have been prepared following the simulation conditions, and then an experimental Oxygen Radical Absorbance Capacity (ORAC) assay has been performed to confirm the in silico predicted results.
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Affiliation(s)
- Emiliano Laudadio
- Department SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Cristina Minnelli
- Department DISVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Giovanna Mobbili
- Department DISVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Giulia Sabbatini
- Department DISVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Pierluigi Stipa
- Department SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Dario Rusciano
- Research Center, Sooft Italia SpA, 95100, Catania, Italy
| | - Roberta Galeazzi
- Department DISVA, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
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11
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Spiegel M. Current Trends in Computational Quantum Chemistry Studies on Antioxidant Radical Scavenging Activity. J Chem Inf Model 2022; 62:2639-2658. [PMID: 35436117 PMCID: PMC9198981 DOI: 10.1021/acs.jcim.2c00104] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
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The antioxidative
nature of chemicals is now routinely studied
using computational quantum chemistry. Scientists are constantly proposing
new approaches to investigate those methods, and the subject is evolving
at a rapid pace. The goal of this review is to collect, consolidate,
and present current trends in a clear, methodical, and reference-rich
manner. This paper is divided into several sections, each of which
corresponds to a different stage of elaborations: preliminary concerns,
electronic structure analysis, and general reactivity (thermochemistry
and kinetics). The sections are further subdivided based on methodologies
used. Concluding remarks and future perspectives are presented based
on the remaining elements.
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Affiliation(s)
- Maciej Spiegel
- Department of Pharmacognosy and Herbal Medicines, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
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12
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Minnelli C, Laudadio E, Fiorini R, Galeazzi R, Armeni T, Stipa P, Rusciano D, Mobbili G. Influence of a lipophilic edaravone on physical state and activity of antioxidant liposomes: An experimental and in silico study. Colloids Surf B Biointerfaces 2021; 210:112217. [PMID: 34836703 DOI: 10.1016/j.colsurfb.2021.112217] [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: 09/16/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
The influence of a lipophilic derivative of Edaravone (C18Edv) on a POPC liposomal bilayer has been investigated by a combined computational-experimental approach. The order and hydration degree of three different systems composed by 10%, 20% and 40% in w/w percentage of C18Edv respect to POPC were investigated through Molecular Dynamics (MD) simulations and fluorescence spectroscopy experiments. Dynamic Light Scattering measurements showed how the presence of different amounts of C18EdV determines differences on liposome size and stability. The survey revealed that the content of lipophilic antioxidant tunes liposome rigidity and influences cellular uptake and antioxidant activity which are maximized for formulation containing 20% of C18Edv.
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Affiliation(s)
- Cristina Minnelli
- Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Emiliano Laudadio
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente e Urbanistica (SIMAU), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Rosamaria Fiorini
- Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Roberta Galeazzi
- Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Tatiana Armeni
- Dipartimento Scienze Cliniche Specialistiche ed Odontostomatologiche, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - Pierluigi Stipa
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente e Urbanistica (SIMAU), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | | | - Giovanna Mobbili
- Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
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13
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Ordoñez ME, Borges VS, Souza AC, Ferreira LR, Costa FM, Melo FP, Vale JK, Borges RS. Molecular modifications on β-nitro-styrene derivatives increase their antioxidant capacities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Minnelli C, Cianfruglia L, Laudadio E, Mobbili G, Galeazzi R, Armeni T. Effect of Epigallocatechin-3-Gallate on EGFR Signaling and Migration in Non-Small Cell Lung Cancer. Int J Mol Sci 2021; 22:ijms222111833. [PMID: 34769263 PMCID: PMC8583909 DOI: 10.3390/ijms222111833] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 12/28/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) is one of the most well-studied molecular targets in non-small cell lung cancer (NSCLC) and tyrosine kinase inhibitors have been shown to be effective in the treatment of advanced NSCLC. Nevertheless, the efficacy of tyrosine kinase inhibitors could be compromised by additional mutations in EGFR and compensatory activations of other pathways. Epigallocatechin-3-gallate (EGCG), the main bioactive molecule in green tea, acts as a tyrosine kinase inhibitor toward cancer cells overexpressing EGFR (wild-type). However, little information has been reported on the effect of EGCG on EGFR with activating mutations. In this study, we evaluated the ability of EGCG to inhibit EGFR signaling activation in three different NSCLC cell lines containing wild-type EGFR or EGFR with additional mutations. The effect on proliferation, apoptosis, migration, and vinculin expression was then studied. Overall, our results demonstrate that EGCG polyphenol inhibits cell proliferation and migration in NSCLC cell lines, although with different efficacy and mechanisms. These data may be of interest for an evaluation of the use of EGCG as an adjunct to NSCLC therapies.
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Affiliation(s)
- Cristina Minnelli
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (G.M.); (R.G.)
- Correspondence: (C.M.); (T.A.)
| | - Laura Cianfruglia
- Department of Clinical Sciences, Marche Polytechnic University, 60131 Ancona, Italy;
| | - Emiliano Laudadio
- Department of Science and Engineering of Matter, Environment and Urban Planning, Marche Polytechnic University, 60131 Ancona, Italy;
| | - Giovanna Mobbili
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (G.M.); (R.G.)
| | - Roberta Galeazzi
- Department of Life and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (G.M.); (R.G.)
| | - Tatiana Armeni
- Department of Clinical Sciences, Marche Polytechnic University, 60131 Ancona, Italy;
- Correspondence: (C.M.); (T.A.)
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15
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Marano S, Minnelli C, Ripani L, Marcaccio M, Laudadio E, Mobbili G, Amici A, Armeni T, Stipa P. Insights into the Antioxidant Mechanism of Newly Synthesized Benzoxazinic Nitrones: In Vitro and In Silico Studies with DPPH Model Radical. Antioxidants (Basel) 2021; 10:antiox10081224. [PMID: 34439472 PMCID: PMC8388956 DOI: 10.3390/antiox10081224] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/21/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022] Open
Abstract
Synthetic nitrone spin-traps are being explored as therapeutic agents for the treatment of a wide range of oxidative stress-related pathologies, including but not limited to stroke, cancer, cardiovascular, and neurodegenerative diseases. In this context, increasing efforts are currently being made to the design and synthesis of new nitrone-based compounds with enhanced efficacy. The most researched nitrones are surely the ones related to α-phenyl-tert-butylnitrone (PBN) and 5,5-dimethyl-1-pyrroline N-oxide (DMPO) derivatives, which have shown to possess potent biological activity in many experimental animal models. However, more recently, nitrones with a benzoxazinic structure (3-aryl-2H-benzo[1,4]oxazin-N-oxides) have been demonstrated to have superior antioxidant activity compared to PBN. In this study, two new benzoxazinic nitrones bearing an electron-withdrawing methoxycarbonyl group on the benzo moiety (in para and meta positions respect to the nitronyl function) were synthesized. Their in vitro antioxidant activity was evaluated by two cellular-based assays (inhibition of AAPH-induced human erythrocyte hemolysis and cell death in human retinal pigmented epithelium (ARPE-19) cells) and a chemical approach by means of the α,α-diphenyl-β-picrylhydrazyl (DPPH) scavenging assay, using both electron paramagnetic resonance (EPR) spectroscopy and UV spectrophotometry. A computational approach was also used to investigate their potential primary mechanism of antioxidant action, as well as to rationalize the effect of functionalization on the nitrones reactivity toward DPPH, chosen as model radical in this study. Further insights were also gathered by exploring the nitrone electrochemical properties via cyclic voltammetry and by studying their kinetic behavior by means of EPR spectroscopy. Results showed that the introduction of an electron-withdrawing group in the phenyl moiety in the para position significantly increased the antioxidant capacity of benzoxazinic nitrones both in cell and cell-free systems. From the mechanistic point of view, the calculated results closely matched the experimental findings, strongly suggesting that the H-atom transfer (HAT) is likely to be the primary mechanism in the DPPH quenching.
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Affiliation(s)
- Stefania Marano
- Dipartimento di Scienze e Ingegneria della Materia, dell’Ambiente ed Urbanistica (SIMAU), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (S.M.); (E.L.)
| | - Cristina Minnelli
- Dipartimento di Scienze della Vita e dell’Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (C.M.); (G.M.)
| | - Lorenzo Ripani
- Dipartimento di Chimica, Università di Bologna, via Selmi 2, 40126 Bologna, Italy; (L.R.); (M.M.)
| | - Massimo Marcaccio
- Dipartimento di Chimica, Università di Bologna, via Selmi 2, 40126 Bologna, Italy; (L.R.); (M.M.)
| | - Emiliano Laudadio
- Dipartimento di Scienze e Ingegneria della Materia, dell’Ambiente ed Urbanistica (SIMAU), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (S.M.); (E.L.)
| | - Giovanna Mobbili
- Dipartimento di Scienze della Vita e dell’Ambiente (DISVA), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (C.M.); (G.M.)
| | - Adolfo Amici
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche-Sez. Biochimica, Biologia e Fisica, Università Politecnica delle Marche, 60131 Ancona, Italy; (A.A.); (T.A.)
| | - Tatiana Armeni
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche-Sez. Biochimica, Biologia e Fisica, Università Politecnica delle Marche, 60131 Ancona, Italy; (A.A.); (T.A.)
| | - Pierluigi Stipa
- Dipartimento di Scienze e Ingegneria della Materia, dell’Ambiente ed Urbanistica (SIMAU), Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (S.M.); (E.L.)
- Correspondence: ; Tel.: +39-071-2204409
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16
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Xiao C, Du M, Liu Y, Yu Y, Yang J. Edaravone attenuates smoke inhalation injury in rats by the Notch pathway. Am J Transl Res 2021; 13:4712-4718. [PMID: 34150051 PMCID: PMC8205801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the protective effect of inhaled edaravone (EDA) on inflammation, oxidative stress (OS), and pulmonary function (PF) in rats after smoke inhalation injury (SII), as well as its mechanisms. METHODS Twenty-four rats were designated as group A (model group), group B (EBA prevention group), group C (low-dose group) and group D (high-dose group) (n=6 for each group). SII models were induced in all groups. After successful modeling, rats in each group were treated accordingly. After 6 hours of modeling, assessments of PF, oxygenation index (OI), inflammatory cytokine expression, oxidative stress index (OSI), wet/dry weight ratio (W/D), total lung water (TLW), and the expression of Notch markers were carried out. RESULTS Compared with group A, the remaining groups had higher peak respiratory velocity (PEF), forced expiratory volume in the first second (FEV1), FEV1/forced vital capacity (FVC) and OI, as well as lower W/D and TLW; levels of serum superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), and interleukin (IL)-6 decreased, and those of serum myeloperoxidase (MPO) and IL-10 increased. Levels of PEF, FEV1, FVC, OI, MPO, and IL-10 were higher in group A than in groups C and D, and those of W/D, TLW, SOD, MDA, TNF-α, and IL-6 were lower. Levels of Notch markers NICD, Hes1 and Hes5 were downregulated in groups B, C, and D, and in group B were lower than those in groups C and D. CONCLUSION Inhaled EDA is able to alleviate inflammation and OS and effectively improve PF in rats after SII, possibly by inhibiting the Notch pathway.
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Affiliation(s)
- Changshuan Xiao
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Minghua Du
- Department of Respiratory and Critical Care Medicine, Fengning Manchu Autonomous County HospitalChengde 067000, Hebei Province, China
| | - Yaping Liu
- Department of Gynecology, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Yue Yu
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Jingzhe Yang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
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17
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Yang Y, Yi J, Pan M, Hu B, Duan H. Edaravone Alleviated Propofol-Induced Neurotoxicity in Developing Hippocampus by mBDNF/TrkB/PI3K Pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:1409-1422. [PMID: 33833500 PMCID: PMC8020057 DOI: 10.2147/dddt.s294557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 03/09/2021] [Indexed: 11/25/2022]
Abstract
Background To investigate the neuroprotective effect of edaravone on excessive-dose propofol-induced neurotoxicity in the hippocampus of newborn rats and HT22 cells. Methods Cell proliferation was investigated by assessing ki67 expression in the neural stem of the hippocampus of newborn rats and by cell counting kit-8 (CCK8) assay in HT22 cells. Cell apoptosis was assessed in vivo by caspase 3 detection in Western blots and measurement of apoptosis in neurons and glial cells by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Apoptosis was analyzed by flow cytometry in HT22 cells. The Morris water maze was used to evaluate the long-term learning and memory ability of rats. Inflammatory factors were detected by enzyme-linked immunosorbent assay (ELISA). The expression of mBDNF/TrkB/PI3K pathway-related proteins was detected by Western blot and quantitative reverse transcription-polymerase chain reaction (q-RT PCR). Results In neonatal rat hippocampus and HT22 cells, edaravone increased cell proliferation and decreased cell apoptosis after excessive propofol-induced neurotoxicity. In addition, the levels of proinflammatory factors interleukin (IL)-6 and tumor necrosis factor (TNF)-α were reduced by edaravone pretreatment. The use of the tropomyosin receptor kinase B (TrkB) antagonist ANA-12 and TrkB agonist 7,8DHF with propofol groups showed that edaravone mitigated excessive propofol-induced neurotoxicity through the mature brain-derived neurotrophic factor (mBDNF)/TrkB/phosphoinositide 3-kinase (PI3K) pathway. However, the current dose of propofol did not significantly affect long-term learning and memory in rats. Conclusion Edaravone pretreatment ameliorated propofol-induced proliferation inhibition, neuroapoptosis, and neural inflammation by activating the mBDNF/TrkB/PI3K pathway.
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Affiliation(s)
- Yangliang Yang
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, People's Republic of China
| | - Jing Yi
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, People's Republic of China
| | - Mengzhi Pan
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, People's Republic of China
| | - Baoji Hu
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, People's Republic of China
| | - Hongwei Duan
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, People's Republic of China
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18
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Barajas-Carrillo VW, Estolano-Cobián A, Díaz-Rubio L, Ayllón-Gutiérrez RR, Salazar-Aranda R, Díaz-Molina R, García-González V, Almanza-Reyes H, Rivero IA, Marrero JG, Córdova-Guerrero I. Antioxidant and acetylcholinesterase inhibition activity of aliphatic and aromatic edaravone derivatives. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02667-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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19
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Queiroz AN, Martins CC, Santos KLB, Carvalho ES, Owiti AO, Oliveira KRM, Herculano AM, da Silva ABF, Borges RS. Experimental and theoretical study on structure-tautomerism among edaravone, isoxazolone, and their heterocycles derivatives as antioxidants. Saudi Pharm J 2020; 28:819-827. [PMID: 32647483 PMCID: PMC7335820 DOI: 10.1016/j.jsps.2020.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/03/2020] [Indexed: 01/07/2023] Open
Abstract
Edaravone is a heterocyclic pyrazolone compound. It has pronounced effect against free radicals, however renal and hepatic disorders have been reported. Isoxazolones are considered bioisosteric analogues of pyrazolones and may have comparable properties. Thus, we investigated the structural and electronic influences for edaravone, isoxazolone, and their tautomers on antioxidant process. Structure and tautomerism study among edaravone, isoxazolone and their heterocycles derivatives were related to antioxidant mechanisms by using the hybrid DFT method B3LYP with the basis sets 6-31++G(2d,2p). The C—H tautomer was the most stable and energetically favored among them. Intramolecular N—H—N hydrogen bonds and polar medium were responsible for the low energy differences among all possible tautomers. N—H tautomers in both systems proved to be better antioxidant by SET (single electron transfer), while O—H tautomers were better antioxidant on HAT (homolytic hydrogen atom transfer) mechanism. Theoretical calculation showed that edaravone is more potent than phenylisoxazolone, however, both has similar antioxidant scavenging on experimental DPPH. The carbonyliminic system played a very important role in the antioxidant activity for both studied classes.
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Affiliation(s)
- Auriekson N Queiroz
- Pharmaceutical Chemistry Laboratory, College of Pharmacy, Health Science Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
| | - Camila C Martins
- Pharmaceutical Chemistry Laboratory, College of Pharmacy, Health Science Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
| | - Kelton L B Santos
- Pharmaceutical Chemistry Laboratory, College of Pharmacy, Health Science Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil.,Faculdade de Química, Campus Santana, Universidade Federal do Amapá, Santana, AP, Brazil
| | - Ederson S Carvalho
- Pharmaceutical Chemistry Laboratory, College of Pharmacy, Health Science Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
| | - Alex O Owiti
- California University of Science and Medicine, San Bernardino, CA, United States
| | - Karen R M Oliveira
- Programa de Pós-Graduação em Neurociências e Biologia Celular, Biological Sciences Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
| | - Anderson M Herculano
- Programa de Pós-Graduação em Neurociências e Biologia Celular, Biological Sciences Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
| | - Albérico B F da Silva
- Instituto de Química de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense, 400, São Carlos, SP, Brazil
| | - Rosivaldo S Borges
- Pharmaceutical Chemistry Laboratory, College of Pharmacy, Health Science Institute, Federal University of Pará, 66075-110 Belém, PA, Brazil
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Monoalkylated Epigallocatechin-3-gallate (C18-EGCG) as Novel Lipophilic EGCG Derivative: Characterization and Antioxidant Evaluation. Antioxidants (Basel) 2020; 9:antiox9030208. [PMID: 32138219 PMCID: PMC7139963 DOI: 10.3390/antiox9030208] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/28/2020] [Accepted: 02/28/2020] [Indexed: 12/19/2022] Open
Abstract
Epigallocatechin-3-gallate (EGCG) has the highest antioxidant activity compared to the others catechins of green tea. However, the beneficial effects are mainly limited by its poor membrane permeability. A derivatization strategy to increase the EGCG interaction with lipid membranes is considered as one feasible approach to expand its application in lipophilic media, in particular the cellular absorption. At this purpose the hydrophilic EGCG was modified by inserting an aliphatic C18 chain linked to the gallate ring by an ethereal bond, the structure determined by NMR (Nuclear Magnetic Resonance) and confirmed by Density Functional Theory (DFT) calculations. The in vitro antioxidant activity of the mono-alkylated EGCG (C18-EGCG) was studied by the DPPH and Thiobarbituric Acid Reactive Substances (TBARS) assays, and its ability to protect cells towards oxidative stress was evaluated in Adult Retinal Pigmented Epithelium (ARPE-19) cells. Molecular Dynamics (MD) simulation and liposomal/buffer partition were used to study the interaction of the modified and unmodified antioxidants with a cell membrane model: the combined experimental-in silico approach shed light on the higher affinity of C18-EGCG toward lipid bilayer. Although the DPPH assay stated that the functionalization decreases the EGCG activity against free radicals, from cellular experiments it resulted that the lipid moiety increases the antioxidant protection of the new lipophilic derivative.
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Ke J, Bian X, Liu H, Li B, Huo R. Edaravone reduces oxidative stress and intestinal cell apoptosis after burn through up-regulating miR-320 expression. Mol Med 2019; 25:54. [PMID: 31829167 PMCID: PMC6907153 DOI: 10.1186/s10020-019-0122-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/21/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Intestinal mucosa barrier dysfunction after burn injury is an important factor for causing mortality of burn patients. The current study established a burn model in rats and used a free radical scavenger edaravone (ED) to treat the rats, so as to investigate the effect of edaravone on intestinal mucosa barrier after burn injury. METHODS Anesthetized rats were subjected to 40% total body surface area water burn immediately, followed by treatment with ED, scrambled antagomir, or antagomiR-320. Intestinal mucosa damage was observed by hematoxylin-eosin staining and graded by colon mucosal damage index (CMDI) score. The contents of total sulfhydryl (TSH), superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA) were determined by spectrophotometry. Cell apoptosis, protein relative expression,and the in situ expressions of p-Akt and p-Bad were detected by flow cytometry, Western blotting and immunohistochemistry, respectively. The miR-320 expression was determined by quantitative real-time polymerase chain reaction. RESULTS ED alleviated intestinal mucosal damage caused by burn injury, down-regulated the levels of MDA, cytochrome C, cleaved caspase-9 and cleaved caspase-3, but up-regulated the levels of TSH, SOD, CAT and Bcl-2. We also found that ED could reduce oxidative stress, inhibit cell apoptosis, increase the expressions of p-Akt, p-Bad and miR-320, and decrease PTEN expression. PTEN was predicted to be the target gene for miR-320, and cell apoptosis could be promoted by inhibiting miR-320 expression. CONCLUSION ED regulates Akt/Bad/Caspase signaling cascade to reduce apoptosis and oxidative stress through up-regulating miR-320 expression and down-regulating PTEN expression, thus protecting the intestinal mucosal barrier of rats from burn injury.
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Affiliation(s)
- Jiaxiang Ke
- Burn and Plastic Section, Qingdao Municipal Hospital Affiliated to Shandong University, Qingdao, China
| | - Xi Bian
- Burn and Plastic Section, Qingdao Municipal Hospital Affiliated to Shandong University, Qingdao, China
| | - Hu Liu
- Burn and Plastic Section, Qingdao Municipal Hospital Affiliated to Shandong University, Qingdao, China
| | - Bei Li
- Burn and Plastic Section, Qingdao Municipal Hospital Affiliated to Shandong University, Qingdao, China
| | - Ran Huo
- Burn and Plastic Section, Shandong Province Hospital Affiliated to Shandong University, Jiaozhou Road, Shibei District, Qingdao, 266011, Shandong Province, China.
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