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K M AS, Angolkar M, Rahamathulla M, Thajudeen KY, Ahmed MM, Farhana SA, Shivanandappa TB, Paramshetti S, Osmani RAM, Natarajan J. Box-Behnken Design-Based Optimization and Evaluation of Lipid-Based Nano Drug Delivery System for Brain Targeting of Bromocriptine. Pharmaceuticals (Basel) 2024; 17:720. [PMID: 38931387 PMCID: PMC11206536 DOI: 10.3390/ph17060720] [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: 04/15/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Bromocriptine (BCR) presents poor bioavailability when administered orally because of its low solubility and prolonged first-pass metabolism. This poses a significant challenge in its utilization as an effective treatment for managing Parkinson's disease (PD). The utilization of lipid nanoparticles can be a promising approach to overcome the limitations of BCR bioavailability. The aim of the research work was to develop and evaluate bromocriptine-loaded solid lipid nanoparticles (BCR-SLN) and bromocriptine-loaded nanostructured lipid carriers (BCR-NLC) employing the Box-Behnken design (BBD). BCR-SLNs and BCR-NLCs were developed using the high-pressure homogenization method. The prepared nanoparticles were characterized for particle size (PS), polydispersity index (PDI), and entrapment efficiency (EE). In vitro drug release, cytotoxicity studies, in vivo plasma pharmacokinetic, and brain distribution studies evaluated the optimized lipid nanoparticles. The optimized BCR-SLN had a PS of 219.21 ± 1.3 nm, PDI of 0.22 ± 0.02, and EE of 72.2 ± 0.5. The PS, PDI, and EE of optimized BCR-NLC formulation were found to be 182.87 ± 2.2, 0.16 ± 0.004, and 83.57 ± 1.8, respectively. The in vitro release profile of BCR-SLN and BCR-NLC showed a biphasic pattern, immediate release, and then trailed due to the sustained release. Furthermore, a pharmacokinetic study indicated that both the optimized BCR-SLN and BCR-NLC formulations improve the plasma and brain bioavailability of the drug compared to the BCR solution. Based on the research findings, it can be concluded that the BCR-loaded lipid nanoparticles could be a promising carrier by enhancing the BBB penetration of the drug and helping in the improvement of the bioavailability and therapeutic efficacy of BCR in the management of PD.
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Affiliation(s)
- Asha Spandana K M
- Department of Pharmaceutics, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, India; (A.S.K.M.); (M.A.); (S.P.); (R.A.M.O.)
| | - Mohit Angolkar
- Department of Pharmaceutics, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, India; (A.S.K.M.); (M.A.); (S.P.); (R.A.M.O.)
| | - Mohamed Rahamathulla
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Al Faraa, Abha 62223, Saudi Arabia;
| | - Kamal Y. Thajudeen
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Al Faraa, Abha 62223, Saudi Arabia;
| | - Mohammed Muqtader Ahmed
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdul Aziz University, Al Kharj 11942, Saudi Arabia;
| | - Syeda Ayesha Farhana
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraidah 51452, Saudi Arabia;
| | | | - Sharanya Paramshetti
- Department of Pharmaceutics, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, India; (A.S.K.M.); (M.A.); (S.P.); (R.A.M.O.)
| | - Riyaz Ali M. Osmani
- Department of Pharmaceutics, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, India; (A.S.K.M.); (M.A.); (S.P.); (R.A.M.O.)
| | - Jawahar Natarajan
- Department of Pharmaceutics, JSS College of Pharmacy-Ootacamund, JSS Academy of Higher Education and Research, Mysuru 570015, India
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Micro- and Nanosized Carriers for Nose-to-Brain Drug Delivery in Neurodegenerative Disorders. Biomedicines 2022; 10:biomedicines10071706. [PMID: 35885011 PMCID: PMC9313014 DOI: 10.3390/biomedicines10071706] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/06/2022] [Accepted: 07/12/2022] [Indexed: 12/12/2022] Open
Abstract
Neurodegenerative disorders (NDs) have become a serious health problem worldwide due to the rapid increase in the number of people that are affected and the constantly aging population. Among all NDs, Alzheimer’s and Parkinson’s disease are the most common, and many efforts have been made in the development of effective and reliable therapeutic strategies. The intranasal route of drug administration offers numerous advantages, such as bypassing the blood–brain barrier and providing a direct entrance to the brain through the olfactory and trigeminal neurons. The present review summarizes the available information on recent advances in micro- and nanoscale nose-to-brain drug-delivery systems as a novel strategy for the treatment of Alzheimer’s and Parkinson’s disease. Specifically, polymer- and lipid-base micro- and nanoparticles have been studied as a feasible approach to increase the brain bioavailability of certain drugs. Furthermore, nanocomposites are discussed as a suitable formulation for administration into the nasal cavity.
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Usama Ashhar M, Vyas P, Vohora D, Kumar Sahoo P, Nigam K, Dang S, Ali J, Baboota S. Amelioration of oxidative stress utilizing nanoemulsion loaded with bromocriptine and glutathione for the management of Parkinson's disease. Int J Pharm 2022; 618:121683. [PMID: 35314276 DOI: 10.1016/j.ijpharm.2022.121683] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 10/18/2022]
Abstract
Parkinson's disease (PD) is triggered by the formation of free radicals in dopaminergic neurons, which results in oxidative stress-induced neurodegeneration. The objective of the work was to relieve oxidative stress by employing intranasal delivery of Bromocriptine Mesylate (BRM) and Glutathione (GSH) loaded nanoemulsion for the better management of PD. The depth of permeation of the nanoemulsion was assessed through confocal laser scanning microscopy (CLSM) which revealed higher nanoemulsion permeation in contrast to suspension. Biocompatibility of nanoemulsion was confirmed by nasal cilio toxicity study. The DPPH study showed that the nanoemulsion had significant antioxidant activity. Biochemical estimation studies in Wistar rats were carried out in order to determine the effect of nanoemulsion on oxidative stress. The levels of GSH, superoxide dismutase (SOD), and catalase (CAT) were significantly enhanced; and the level of thiobarbituric acid reactive substances (TBARS) was significantly reduced after the intranasal administration of nanoemulsion in the haloperidol-induced model of PD. Furthermore, the levels of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) were also determined which reduced significantly after the administration of nanoemulsion. The oxidative stress levels were lowered with nanoemulsion, showing the combined antioxidant capability of BRM and GSH. The neuroprotective effect of the prepared nanoemulsion was confirmed by histopathological studies. Pharmacokinetic study revealed a higher concentration of BRM and GSH in the brain of Wistar rats after intranasal administration of nanoemulsion with a higher Brain/Plasma ratio. A higher value of AUC(0-8) of nanoemulsion in the brain after intranasal administration revealed that BRM and GSH remained in the brain for a longer period due to sustained release from nanoemulsion. According to the findings, BRM and GSH loaded nanoemulsion has the potential to provide a combined and synergistic anti-oxidant effect for efficient management of PD.
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Affiliation(s)
- Muhammad Usama Ashhar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Preeti Vyas
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Divya Vohora
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Pravat Kumar Sahoo
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | - Kuldeep Nigam
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh 201309, India
| | - Shweta Dang
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh 201309, India
| | - Javed Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Sanjula Baboota
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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Fakhri S, Abdian S, Zarneshan SN, Moradi SZ, Farzaei MH, Abdollahi M. Nanoparticles in Combating Neuronal Dysregulated Signaling Pathways: Recent Approaches to the Nanoformulations of Phytochemicals and Synthetic Drugs Against Neurodegenerative Diseases. Int J Nanomedicine 2022; 17:299-331. [PMID: 35095273 PMCID: PMC8791303 DOI: 10.2147/ijn.s347187] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Abstract
As the worldwide average life expectancy has grown, the prevalence of age-related neurodegenerative diseases (NDDs) has risen dramatically. A progressive loss of neuronal function characterizes NDDs, usually followed by neuronal death. Inflammation, apoptosis, oxidative stress, and protein misfolding are critical dysregulated signaling pathways that mainly orchestrate neuronal damage from a mechanistic point. Furthermore, in afflicted families with genetic anomalies, mutations and multiplications of α-synuclein and amyloid-related genes produce some kinds of NDDs. Overproduction of such proteins, and their excessive aggregation, have been proven in various models of neuronal malfunction and death. In this line, providing multi-target therapies carried by novel delivery systems would pave the road to control NDDs through simultaneous modulation of such dysregulated pathways. Phytochemicals are multi-target therapeutic agents, which employ several mechanisms towards neuroprotection. Besides, the blood-brain barrier (BBB) is a critical issue in managing NDDs since it inhibits the accessibility of drugs to the brain in sufficient concentration. Besides, discovering novel delivery systems is vital to improving the efficacy, bioavailability, and pharmacokinetic of therapeutic agents. Such novel formulations are also employed to improve the drug's biodistribution, allow for the co-delivery of several medicines, and offer targeted intracellular delivery against NDDs. The present review proposes nanoformulations of phytochemicals and synthetic agents to combat NDDs by modulating neuroinflammation, neuroapoptosis, neuronal oxidative stress pathways and protein misfolding.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sadaf Abdian
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Ashhar MU, Kumar S, Ali J, Baboota S. CCRD based development of bromocriptine and glutathione nanoemulsion tailored ultrasonically for the combined anti-parkinson effect. Chem Phys Lipids 2021; 235:105035. [PMID: 33400967 DOI: 10.1016/j.chemphyslip.2020.105035] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/30/2020] [Accepted: 12/26/2020] [Indexed: 10/22/2022]
Abstract
Bromocriptine Mesylate (BRM) acts as a dopamine receptor agonist along with antioxidant effect and is utilized in the treatment of Parkinson's disease (PD). Glutathione (GSH) is a thiol- reducing agent having antioxidant properties in the brain. Replenishment of GSH inside the brain can play a major role in the management of PD. Both BRM and GSH suffer from low oral bioavailability and poor absorption. The objective of the present study was to develop BRM and GSH loaded nanoemulsion for the combined and synergistic effect delivered through the intranasal route for the better and effective management of PD. After extensive screening experiments, Capmul PG-8 NF was selected as oil, polyethylene glycol (PEG) 400 as a surfactant and propylene glycol as co-surfactant. Ultrasonication technique was employed for the fabrication of nanoemulsion. Central composite rotatable design (CCRD) was used to obtain the best formulation by optimization. Oil (%), Smix (%), and sonication time (second) were chosen as independent variables for the optimization. Particle size, PDI, zeta potential, % transmittance, pH, refractive index, viscosity and conductivity of the optimized nanoemulsion were found to be 80.71 ± 2.75 nm, 0.217 ± 0.009, -12.60 ± 0.10 mV, 96.00 ± 3.05 %, 6.48 ± 0.28, 1.36 ± 0.03, 30.12 ± 0.10 mPas and 214.28 ± 2.79 μS/cm respectively. Surface morphology demonstrated that nanoemulsion possessed spherical and globular nature of the particle which showed 3.4 times and 1.5 times enhancement in drug permeation in the case of BRM and GSH respectively as compared to suspension. MTT assay done on neuro-2a cell lines revealed that nanoemulsion was safe for intranasal delivery. Behavioural studies were carried out to prove the efficacy of optimized nanoemulsion in PD using forced swimming test, locomotor activity test, catalepsy test, rota-rod test, and akinesia test in Wistar rats. The outcomes of the behavioural studies revealed that BRM and GSH loaded nanoemulsion treatment showed significant improvement in behavioural activities of PD (haloperidol-induced) rats after intranasal administration. This study concluded that BRM and GSH loaded nanoemulsion could be promising for the combined and synergistic anti-parkinson effect for the effective management of PD.
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Affiliation(s)
- Muhammad Usama Ashhar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Shobhit Kumar
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH-58, Delhi-Roorkee Highway, Meerut, 250005 Uttar Pradesh, India
| | - Javed Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Sanjula Baboota
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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Sita V, Jadhav D, Vavia P. Niosomes for nose-to-brain delivery of bromocriptine: Formulation development, efficacy evaluation and toxicity profiling. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101791] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Rassu G, Soddu E, Cossu M, Gavini E, Giunchedi P, Dalpiaz A. Particulate formulations based on chitosan for nose-to-brain delivery of drugs. A review. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.05.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Siddique YH, Khan W, Fatima A, Jyoti S, Khanam S, Naz F, Rahul, Ali F, Singh BR, Naqvi AH. Effect of bromocriptine alginate nanocomposite (BANC) on a transgenic Drosophila model of Parkinson's disease. Dis Model Mech 2015; 9:63-8. [PMID: 26542705 PMCID: PMC4728334 DOI: 10.1242/dmm.022145] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 10/13/2015] [Indexed: 11/25/2022] Open
Abstract
The effect of bromocriptine, a dopamine agonist, administered in the form of bromocriptine alginate nanocomposite (BANC) was studied on Parkinson's disease (PD) model flies. The synthesized BANC was subject to characterization and, at a final concentration of 0.5, 1.0 and 1.5 µM, was mixed in diet. The PD flies were allowed to feed on it for 24 days. A significant dose-dependent delay in the loss of climbing activity and activity pattern was observed in PD flies exposed to 0.5, 1.0 and 1.5 µM BANC. The PD flies exposed to BANC also showed a significant reduction in lipid peroxidation and glutathione-S-transferase activity, and an increase in glutathione content. However, no gross morphological changes were observed in the brains of PD flies compared with controls. The results suggest that BANC is effective in reducing the PD symptoms in these transgenic flies. Summary: The results suggest that the bromocriptine alginate nanocomposite is potent in reducing the symptoms of Parkinson's disease in a transgenic fly model of the disease.
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Affiliation(s)
- Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Wasi Khan
- Centre of Excellence in Materials Sciences (Nanomaterials), Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Ambreen Fatima
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Smita Jyoti
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Saba Khanam
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Falaq Naz
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Rahul
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Fahad Ali
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Braj Raj Singh
- Centre of Excellence in Materials Sciences (Nanomaterials), Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Alim Hussain Naqvi
- Centre of Excellence in Materials Sciences (Nanomaterials), Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
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Md S, Haque S, Fazil M, Kumar M, Baboota S, Sahni JK, Ali J. Optimised nanoformulation of bromocriptine for direct nose-to-brain delivery: biodistribution, pharmacokinetic and dopamine estimation by ultra-HPLC/mass spectrometry method. Expert Opin Drug Deliv 2014; 11:827-42. [PMID: 24655115 DOI: 10.1517/17425247.2014.894504] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The present work evaluated whether the prepared nanoparticles (NPs) would be able to target the drug to the brain by a non-invasive nasal route enhancing its bioavailability. METHODS Bromocriptine (BRC) chitosan NPs (CS NPs) were prepared by ionic gelation method. The biodistribution, pharmacokinetic parameters and dopamine concentration was analysed by ultra-HPLC/mass spectrometry method. The histopathological examination in haloperidol-induced Parkinson's disease in mice model following intranasal (i.n.) administration was evaluated. RESULTS BRC was found stable in all exposed conditions and the percentage accuracy observed for intra-day and inter-day batch samples ranged from 90.5 to 107% and 95.3 to 98.9% for plasma and brain homogenates, respectively. BRC-loaded CS NPs showed greater retention into the nostrils (42 ± 8.5% radioactivity) for about 4 h, whereas the 44 ± 7.5% could be retained up to 1 h for BRC solution. The brain:blood ratios of 0.96 ± 0.05 > 0.73 ± 0.15 > 0.25 ± 0.05 of BRC-loaded CS NPs (i.n.) > BRC solution (i.n.) > BRC-loaded CS NPs (intravenous), respectively, at 0.5 h indicated direct nose-to-brain transport bypassing blood-brain barrier. BRC-loaded CS NPs administered intranasally showed significantly high dopamine concentration (20.65 ± 1.08 ng/ml) as compared to haloperidol-treated mice (10.94 ± 2.16 ng/ml) (p < 0.05). Histopathology of brain sections showed selective degeneration of the dopaminergic neurons in haloperidol-treated mice which was markedly reverted by BRC-loaded CS NPs. CONCLUSION Nanoparticulate drug delivery system could be potentially used as a nose-to-brain drug delivery carrier for the treatment of Parkinson's disease.
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Affiliation(s)
- Shadab Md
- Department of Pharmaceutics, Jamia Hamdard, Faculty of Pharmacy , Hamdard Nagar, New Delhi-110062 , India +91 9811312247 ; +011 26059633 ; javedaali@ yahoo.com
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Woo SY, Kim JH, Moon MK, Han SH, Yeon SK, Choi JW, Jang BK, Song HJ, Kang YG, Kim JW, Lee J, Kim DJ, Hwang O, Park KD. Discovery of vinyl sulfones as a novel class of neuroprotective agents toward Parkinson's disease therapy. J Med Chem 2014; 57:1473-87. [PMID: 24467268 DOI: 10.1021/jm401788m] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Although the etiology of Parkinson's disease (PD) remains elusive, recent studies suggest that oxidative stress contributes to the cascade leading to dopaminergic (DAergic) neurodegeneration. The Nrf2 signaling is the main pathway responsible for cellular defense system against oxidative stress. Nrf2 is a transcription factor that regulates environmental stress response by inducing expression of antioxidant enzyme genes. We have synthesized novel vinyl sulfone derivatives. They exhibited a broad range of activities in inducing HO-1, whose gene expression is under the control of Nrf2. Among them, compound 12g was confirmed to activate Nrf2 and induce expression of the Nrf2-dependent antioxidant enzymes NQO1, GCLC, GLCM, and HO-1, at both mRNA and protein levels in DAergic neuronal cells. This was accompanied by protection of DAergic neurons in both in vitro and MPTP-induced in vivo models of PD. In addition, compound 12g effectively resulted in attenuation of the PD-associated behavioral deficits in the mouse model.
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Affiliation(s)
- Seo Yeon Woo
- Center for Neuro-Medicine, Brain Science Institute, and ‡Doping Control Center, Korea Institute of Science and Technology , Seoul, 136-791, Republic of Korea
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Mittal D, Ali A, Md S, Baboota S, Sahni JK, Ali J. Insights into direct nose to brain delivery: current status and future perspective. Drug Deliv 2013; 21:75-86. [PMID: 24102636 DOI: 10.3109/10717544.2013.838713] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Now a day's intranasal (i.n) drug delivery is emerging as a reliable method to bypass the blood-brain barrier (BBB) and deliver a wide range of therapeutic agents including both small and large molecules, growth factors, viral vectors and even stem cells to the brain and has shown therapeutic effects in both animals and humans. This route involves the olfactory or trigeminal nerve systems which initiate in the brain and terminate in the nasal cavity at the olfactory neuroepithelium or respiratory epithelium. They are the only externally exposed portions of the central nervous system (CNS) and therefore represent the most direct method of noninvasive entry into the brain. This approach has been primarily used to explore therapeutic avenues for neurological diseases. The potential for treatment possibilities with olfactory transfer of drugs will increase as more effective formulations and delivery devices are developed. Recently, the apomorphine hydrochloride dry powders have been developed for i.n. delivery (Apomorphine nasal, Lyonase technology, Britannia Pharmaceuticals, Surrey, UK). The results of clinical trial Phase III suggested that the prepared formulation had clinical effect equivalent to subcutaneously administered apomorphine. In coming years, intranasal delivery of drugs will demand more complex and automated delivery devices to ensure accurate and repeatable dosing. Thus, new efforts are needed to make this noninvasive route of delivery more efficient and popular, and it is also predicted that in future a range of intranasal products will be used in diagnosis as well as treatment of CNS diseases. This review will embark the existing evidence of nose-to-brain transport. It also provides insights into the most relevant pre-clinical studies of direct nose-brain delivery and delivery devices which will provide relative success of intranasal delivery system. We have, herein, outlined the relevant aspects of CNS drugs given intranasally to direct the brain in treating CNS disorders like Alzheimer's disease, depression, migraine, schizophrenia, etc.
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Affiliation(s)
- Deepti Mittal
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard , Hamdard Nagar, New Delhi , India
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Miyajima M, Minoshima M, Tanaka M, Nishimura R, Hishioka N, Numata T, Hosokawa T, Kurasaki M, Saito T. Increase in tetrahydrobiopterin concentration with aging in the cerebral cortex of the senescence-accelerated mouse prone 10 strain caused by abnormal regulation of tetrahydrobiopterin biosynthesis. Biogerontology 2013; 14:491-501. [PMID: 23933678 DOI: 10.1007/s10522-013-9452-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 08/06/2013] [Indexed: 11/29/2022]
Abstract
6R-L-Erythro-5,6,7,8-tetrahydrobiopterin (BH4) is an essential cofactor for tyrosine hydroxylase (TH) activity and is a risk factor for cognitive decline and brain atrophy. Previous studies have shown that the decline in TH activity in the cerebral cortex of senescence-accelerated mouse prone 10 (SAMP10) mice is caused, at least in part, by a decrease in Fe, ferritin, and TH phosphorylation. We determined the concentrations of BH4 and the enzymes GTP cyclohydrolase-1,6-pyruvoyltetrahydropterin synthase and sepiapterin reductase (SPR) in the de novo pathway of BH4 biosynthesis. Dihydrofolate reductase (DHFR), which converts BH2 to BH4 in the salvage pathway of BH4 synthesis was also determined in the cerebral cortex of SAM mice at 3 and 12 months of age. The BH4 concentration was measured by HPLC, and the protein levels of enzymes involved in BH4 synthesis were measured by western blot analysis. At 12 months of age, BH4 concentration in the cerebral cortex of SAMP10 mice showed significantly higher values as compared to that of control mice. Further, the protein level of SPR in SAMP10 mice was significantly higher than that in SAMR1 mice at 3 and 12 months of age. In contrast to SPR, the protein level of DHFR in SAMP10 mice was significantly lower than that in SAMR1 mice. These results indicate that abnormal regulation of BH4 metabolism occurs in the cerebral cortex of SAMP10 where the dysfunction of the salvage pathway of BH4 synthesis may cause overproduction of BH4 through the de novo pathway, which is considered characteristic in the cerebral cortex of SAMP10 with aging. Therefore, there is a possibility that the excess amounts of BH4 lead to age-related brain dysfunction in the cerebral cortex of SAMP10.
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Affiliation(s)
- Miki Miyajima
- Graduate School of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan
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van Woensel M, Wauthoz N, Rosière R, Amighi K, Mathieu V, Lefranc F, van Gool SW, de Vleeschouwer S. Formulations for Intranasal Delivery of Pharmacological Agents to Combat Brain Disease: A New Opportunity to Tackle GBM? Cancers (Basel) 2013; 5:1020-48. [PMID: 24202332 PMCID: PMC3795377 DOI: 10.3390/cancers5031020] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 06/29/2013] [Accepted: 08/02/2013] [Indexed: 01/01/2023] Open
Abstract
Despite recent advances in tumor imaging and chemoradiotherapy, the median overall survival of patients diagnosed with glioblastoma multiforme does not exceed 15 months. Infiltration of glioma cells into the brain parenchyma, and the blood-brain barrier are important hurdles to further increase the efficacy of classic therapeutic tools. Local administration methods of therapeutic agents, such as convection enhanced delivery and intracerebral injections, are often associated with adverse events. The intranasal pathway has been proposed as a non-invasive alternative route to deliver therapeutics to the brain. This route will bypass the blood-brain barrier and limit systemic side effects. Upon presentation at the nasal cavity, pharmacological agents reach the brain via the olfactory and trigeminal nerves. Recently, formulations have been developed to further enhance this nose-to-brain transport, mainly with the use of nanoparticles. In this review, the focus will be on formulations of pharmacological agents, which increase the nasal permeation of hydrophilic agents to the brain, improve delivery at a constant and slow release rate, protect therapeutics from degradation along the pathway, increase mucoadhesion, and facilitate overall nasal transport. A mounting body of evidence is accumulating that the underexplored intranasal delivery route might represent a major breakthrough to combat glioblastoma.
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Affiliation(s)
- Matthias van Woensel
- Laboratory of Experimental Neurosurgery and Neuroanatomy, KU Leuven, Leuven 3000, Belgium; E-Mail:
- Laboratory of Pediatric Immunology, KU Leuven, Leuven 3000, Belgium; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +32-016-34-61-65; Fax: +32-016-34-60-35
| | - Nathalie Wauthoz
- Laboratory of Pharmaceutics and Biopharmaceutics, ULB, Brussels 1050, Belgium; E-Mails: (N.W.); (R.R.); (K.A.)
| | - Rémi Rosière
- Laboratory of Pharmaceutics and Biopharmaceutics, ULB, Brussels 1050, Belgium; E-Mails: (N.W.); (R.R.); (K.A.)
| | - Karim Amighi
- Laboratory of Pharmaceutics and Biopharmaceutics, ULB, Brussels 1050, Belgium; E-Mails: (N.W.); (R.R.); (K.A.)
| | - Véronique Mathieu
- Laboratory of Toxicology, ULB, Brussels 1050, Belgium; E-Mails: (V.M.); (F.L.)
| | - Florence Lefranc
- Laboratory of Toxicology, ULB, Brussels 1050, Belgium; E-Mails: (V.M.); (F.L.)
- Department of Neurosurgery, Erasmus University Hospitals, Brussels 1050, Belgium
| | - Stefaan W. van Gool
- Laboratory of Pediatric Immunology, KU Leuven, Leuven 3000, Belgium; E-Mail:
| | - Steven de Vleeschouwer
- Laboratory of Experimental Neurosurgery and Neuroanatomy, KU Leuven, Leuven 3000, Belgium; E-Mail:
- Laboratory of Pediatric Immunology, KU Leuven, Leuven 3000, Belgium; E-Mail:
- Department of Neurosurgery, University Hospitals Leuven, Leuven 3000, Belgium
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Md S, Khan RA, Mustafa G, Chuttani K, Baboota S, Sahni JK, Ali J. Bromocriptine loaded chitosan nanoparticles intended for direct nose to brain delivery: pharmacodynamic, pharmacokinetic and scintigraphy study in mice model. Eur J Pharm Sci 2012; 48:393-405. [PMID: 23266466 DOI: 10.1016/j.ejps.2012.12.007] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/20/2012] [Accepted: 12/06/2012] [Indexed: 10/27/2022]
Abstract
The primary aim of this study was to investigate the potential use of chitosan nanoparticles as a delivery system to enhance the brain targeting efficiency of bromocriptine (BRC) following intranasal (i.n.) administration. The BRC loaded chitosan nanoparticles (CS NPs) were prepared by ionic gelation of CS with tripolyphosphate anions. These NPs had a mean size (161.3 ± 4. 7 nm), zeta potential (+40.3 ± 2.7 mV), loading capacity (37.8% ± 1.8%) and entrapment efficiency (84.2% ± 3.5%). The oral administration of haloperidol (2mg/kg) to mice produced typical Parkinson (PD) symptoms. Catalepsy and akinesia outcomes in animals receiving BRC either in solution or within CS NPs showed a reversal in catalepsy and akinesia behavior when compared to haloperidol treated mice, this reversal being specially pronounced in mice receiving BRC loaded CS NPs. Biodistribution of BRC formulations in the brain and blood of mice following i.n. and intravenous (i.v.) administration was performed using optimized technetium labeled (99mTc-labeled) BRC formulations. The brain/blood ratio of 0.47 ± 0.04, 0.69 ± 0.031, and 0.05 ± 0.01 for BRC solution (i.n.), BRC loaded CS NPs (i.n.) and (i.v.) respectively, at 0.5h are suggestive of direct nose to brain transport bypassing the blood-brain barrier. Gamma scintigraphy imaging of mice brain following i.v. and i.n. administrations were performed to determine the localization of drug in brain. The drug targeting index and direct transport percentage for BRC loaded CS NPs following i.n. route were 6.3 ± 0.8 and 84.2% ± 1.9%. These encouraging results confirmed the development of a novel non-invasive nose to brain delivery system of BRC for the treatment of PD.
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Affiliation(s)
- Shadab Md
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India
| | - Rashid A Khan
- Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India
| | - Gulam Mustafa
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India
| | - Krishna Chuttani
- Department of Radiopharmaceuticals, Institute of Nuclear Medicine and Allied Sciences (INMAS), New Delhi, India
| | - Sanjula Baboota
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India
| | - Jasjeet K Sahni
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India
| | - Javed Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi 110 062, India.
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Ha US, Bae WJ, Kim SJ, Yoon BI, Jang H, Hong SH, Lee JY, Hwang SY, Kim SW. Protective effect of cyanidin-3-O-β-D-glucopyranoside fraction from mulberry fruit pigment against oxidative damage in streptozotocin-induced diabetic rat bladder. Neurourol Urodyn 2012; 32:493-9. [PMID: 23129268 DOI: 10.1002/nau.22334] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 09/18/2012] [Indexed: 12/20/2022]
Abstract
AIMS To determine whether cyanidin-3-O-β-D-glucopyranoside (C3G) fraction from mulberry fruit pigment has protective effects against bladder dysfunction on streptozotocin-induced diabetic rats METHODS Sprague-Dawley rats were divided into three groups (n = 12 in each): normal, diabetes (DM), and DM treated with C3G fraction (DM + C3G). The DM and DM + C3G groups received a single injection of streptozotocin (50 mg/kg) intraperitoneally. Four weeks after the induction of diabetes, the DM + C3G group was treated with daily oral C3G (10 mg/kg) dissolved in water, for 8 weeks. After 12 weeks of streptozotocin injections, rats in each group underwent cystometrography and bladders were used for evaluation of apoptosis and oxidative stress. RESULTS The DM group showed a markedly lower maximal intravesical pressure than that observed in the control group, whereas rats in the DM + C3G group showed improved maximum intravesical pressure associated with minimization of apoptosis, and increased levels of Akt and Bad phosphorylation, implying inhibition of pro-apoptotic stimuli. The level of 8-hydroxy-2-deoxyguanosine, a marker of oxidative stress, was significantly greater in the DM group compared to the control group and it was significantly reduced in the C3G treated group. Immunoblotting revealed a significant decrease in the levels of the superoxide dismutase protein and nerve growth factor in the DM group compared with the control group; however, these proteins were upregulated in the DM + C3G group compared with the DM group. CONCLUSIONS The study is the first to suggest that C3G fraction have a potency to protect the bladder under conditions of diabetes-induced oxidative stress.
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Affiliation(s)
- U-Syn Ha
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
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Kim IK, Park SJ, Park JH, Lee SH, Hong SE, Reed JC. Cyclosporine A and bromocriptine attenuate cell death mediated by intracellular calcium mobilization. BMB Rep 2012; 45:482-7. [DOI: 10.5483/bmbrep.2012.45.8.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Pickert G, Myrczek T, Rückert S, Weigert A, Häussler A, Ferreirós N, Brüne B, Lötsch J, Tegeder I. Inhibition of GTP cyclohydrolase reduces cancer pain in mice and enhances analgesic effects of morphine. J Mol Med (Berl) 2012; 90:1473-86. [PMID: 22706600 DOI: 10.1007/s00109-012-0927-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 05/31/2012] [Accepted: 06/05/2012] [Indexed: 12/24/2022]
Abstract
Noncoding polymorphisms of the GTP cyclohydrolase gene (GCH1) reduce the risk for chronic pain in humans suggesting GCH1 inhibitors as analgesics. We assessed the effects of the GCH1 inhibitor diaminohydroxypyrimidine (DAHP) on nociception and inflammation in a mouse melanoma and a sarcoma cancer pain model, and its co-effects with morphine in terms of analgesic efficacy and respiratory depression. GCH1 inhibition did not reduce the tumor-evoked nociceptive hypersensitivity of the tumor-bearing paw. However, DAHP reduced melanoma- and sarcoma-evoked systemic hyperalgesia as determined by analyzing contralateral paws. GCH1 inhibition increased the inflammatory edema and infiltration with polymorphonuclear leukocytes surrounding the tumor but reduced the tumor-evoked microglia activation in the spinal cord suggesting that an increase of the local immune attack against the tumor may avoid general pain hypersensitivity. When used in combination with morphine at high or low doses, GCH1 inhibition increased and prolonged the analgesic effects of the opioid. It did not, however, increase the respiratory depression caused by morphine. Conversely, the GCH1-product, tetrahydrobiopterin, caused hyperalgesia, antagonized antinociceptive effects of morphine, and aggravated morphine-evoked respiratory depression, the latter mimicked by a cGMP analog suggesting that respiratory effects were partly mediated through the BH4-NO-cGMP pathway. The observed effects of GCH1 inhibition in the tumor model and its enhancement of morphine-evoked antinociception without increase of morphine toxicity suggest that GCH1 inhibitors might be useful as co-therapeutics for opioids in cancer patients.
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Affiliation(s)
- Geethanjali Pickert
- pharmazentrum frankfurt, ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, Hs 74, 60590 Frankfurt, Germany
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18
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Zhu G, Wang X, Wu S, Li Q. Involvement of activation of PI3K/Akt pathway in the protective effects of puerarin against MPP+-induced human neuroblastoma SH-SY5Y cell death. Neurochem Int 2012; 60:400-8. [PMID: 22265823 DOI: 10.1016/j.neuint.2012.01.003] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 12/28/2011] [Accepted: 01/04/2012] [Indexed: 01/01/2023]
Abstract
In an attempt to clarify the protective effect of puerarin on toxin-insulted dopaminergic neuronal death, this present study was carried out by using a typical Parkinson's disease (PD) model - 1-methyl-4-phenylpyridinium iodide (MPP(+))-induced dopaminergic SH-SY5Y cellular model. Data are presented, which showed that puerarin up-regulated Akt phosphorylation in both of MPP(+)-treated and non-MPP(+)-treated cells. The presence of PI3K inhibitor LY294002 completely blocked puerarin-induced activation of Akt phosphorylation. Moreover, puerarin decreased MPP(+)-induced cell death, which was blocked by phosphoinositide 3-kinase (PI3K) inhibitor LY294002. We further demonstrated that puerarin protected against MPP(+)-induced p53 nuclear accumulation, Puma (p53-upregulated mediator of apoptosis) and Bax expression and caspase-3-dependent programmed cell death (PCD). This protection was blocked by applying a PI3K/Akt inhibitor. Additionally, it was Pifithrin-α, but not Pifithrin-μ, which blocked MPP(+)-induced Puma and Bax expression, caspase-3 activation and cell death. Collectively, these data suggest that the activation of PI3K/Akt pathway is involved in the protective effect of puerarin against MPP(+)-induced neuroblastoma SH-SY5Y cell death through inhibiting nuclear p53 accumulation and subsequently caspase-3-dependent PCD. Puerarin might be a potential therapeutic agent for PD.
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Affiliation(s)
- Guoqi Zhu
- Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Traditional Chinese Medicine, Hefei, China
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Myricetin protects cells against oxidative stress-induced apoptosis via regulation of PI3K/Akt and MAPK signaling pathways. Int J Mol Sci 2010; 11:4348-60. [PMID: 21151442 PMCID: PMC3000086 DOI: 10.3390/ijms11114348] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 09/25/2010] [Accepted: 10/29/2010] [Indexed: 01/22/2023] Open
Abstract
Recently, we demonstrated that myricetin exhibits cytoprotective effects against H2O2-induced cell damage via its antioxidant properties. In the present study, myricetin was found to inhibit H2O2-induced apoptosis in Chinese hamster lung fibroblast (V79-4) cells, as shown by decreased apoptotic bodies, nuclear fragmentation, sub-G1 cell population, and disruption of mitochondrial membrane potential (Δψm), which are increased in H2O2-treated cells. Western blot data showed that in H2O2-treated cells, myricetin increased the level of Bcl-2, which is an anti-apoptotic factor, and decreased the levels of Bax, active caspase-9 and -3, which are pro-apoptotic factors. And myricetin inhibited release of cytochrome c from mitochondria to cytosol in H2O2-treated cells. Myricetin-induced survival correlated with Akt activity, and the rescue of cells by myricetin treatment against H2O2-induced apoptosis was inhibited by the specific PI3K (phosphoinositol-3-kinase) inhibitor. Myricetin-mediated survival also inhibited the activation of p38 mitogen activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK), which are members of MAPK. Our studies suggest that myricetin prevents oxidative stress-induced apoptosis via regulation of PI3K/Akt and MAPK signaling pathways.
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