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Salama RM, Darwish SF, Yehia R, Eissa N, Elmongy NF, Abd-Elgalil MM, Schaalan MF, El Wakeel SA. Apilarnil exerts neuroprotective effects and alleviates motor dysfunction by rebalancing M1/M2 microglia polarization, regulating miR-155 and miR-124 expression in a rotenone-induced Parkinson's disease rat model. Int Immunopharmacol 2024; 137:112536. [PMID: 38909495 DOI: 10.1016/j.intimp.2024.112536] [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: 02/06/2024] [Revised: 06/15/2024] [Accepted: 06/18/2024] [Indexed: 06/25/2024]
Abstract
Microglial activation contributes to the neuropathology of Parkinson's disease (PD). Inhibiting M1 while simultaneously boosting M2 microglia activation may therefore be a potential treatment for PD. Apilarnil (API) is a bee product produced from drone larvae. Recent research has demonstrated the protective effects of API on multiple body systems. Nevertheless, its impact on PD or the microglial M1/M2 pathway has not yet been investigated. Thus, we intended to evaluate the dose-dependent effects of API in rotenone (ROT)-induced PD rat model and explore the role of M1/M2 in mediating its effect. Seventy-two Wistar rats were equally grouped as; control, API, ROT, and groups in which API (200, 400, and 800 mg/kg, p.o.) was given simultaneously with ROT (2 mg/kg, s.c.) for 28 days. The high dose of API (800 mg/kg) showed enhanced motor function, higher expression of tyrosine hydroxylase and dopamine levels, less dopamine turnover and α-synuclein expression, and a better histopathological picture when compared to the ROT group and the lower two doses. API's high dose exerted its neuroprotective effects through abridging the M1 microglial activity, illustrated in the reduced expression of miR-155, Iba-1, CD36, CXCL10, and other pro-inflammatory markers' levels. Inversely, API high dose enhanced M2 microglial activity, witnessed in the elevated expression of miR-124, CD206, Ym1, Fizz1, arginase-1, and other anti-inflammatory indices, in comparison to the diseased group. To conclude, our study revealed a novel neuroprotective impact for API against experimentally induced PD, where the high dose showed the highest protection via rebalancing M1/M2 polarization.
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Affiliation(s)
- Rania M Salama
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Misr International University (MIU), Cairo, Egypt.
| | - Samar F Darwish
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Badr University in Cairo (BUC), Cairo, Egypt.
| | - Rana Yehia
- Pharmacology and Toxicology Department, Faculty of Pharmacy, British University in Egypt (BUE), Cairo, Egypt.
| | - Nermin Eissa
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates.
| | - Noura F Elmongy
- Physiology Department, Damietta Faculty of Medicine, Al-Azhar University, Damietta, Egypt.
| | - Mona M Abd-Elgalil
- Histology and Cell Biology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
| | - Mona F Schaalan
- Clinical Pharmacy Department, Faculty of Pharmacy, Misr International University (MIU), Cairo, Egypt.
| | - Sara A El Wakeel
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Misr International University (MIU), Cairo, Egypt.
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Roshdy M, Zaky DA, Abbas SS, Abdallah DM. Niacin, an innovative protein kinase-C-dependent endoplasmic reticulum stress reticence in murine Parkinson's disease. Life Sci 2024; 351:122865. [PMID: 38914304 DOI: 10.1016/j.lfs.2024.122865] [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: 02/18/2024] [Revised: 06/08/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
AIMS Niacin (NIA) supplementation showed effectiveness against Parkinson's disease (PD) in clinical trials. The depletion of NAD and endoplasmic reticulum stress response (ERSR) are implicated in the pathogenesis of PD, but the potential role for NAD precursors on ERSR is not yet established. This study was undertaken to decipher NIA molecular mechanisms against PD-accompanied ERSR, especially in relation to PKC. METHODS Alternate-day-low-dose-21 day-subcutaneous exposure to rotenone (ROT) in rats induced PD. Following the 5th ROT injection, rats received daily doses of either NIA alone or preceded by the PKC inhibitor tamoxifen (TAM). Extent of disease progression was assessed by behavioral, striatal biochemical and striatal/nigral histopathological/immunohistochemical analysis. KEY FINDINGS Via activating PKC/LKB1/AMPK stream, NIA post-treatment attenuated the ERSR reflected by the decline in ATF4, ATF6 and XBP1s to downregulate the apoptotic markers, CHOP/GADD153, p-JNK and active caspase-3. Such amendments congregated in motor activity/coordination improvements in open field and rotarod tasks, enhanced grid test latency and reduced overall PD scores, while boosting nigral/striatal tyrosine hydroxylase immunoreactivity and increasing intact neurons (Nissl stain) in both SNpc and striatum that showed less neurodegeneration (H&E stain). To different extents, TAM reverted all the NIA-related actions to prove PKC as a fulcrum in conveying the drug neurotherapeutic potential. SIGNIFICANCE PKC activation is a pioneer mechanism in the drug ERSR inhibitory anti-apoptotic modality to clarify NIA promising clinical and potent preclinical anti-PD efficacy. This kinase can be tagged as a druggable target for future add-on treatments that can assist dopaminergic neuronal aptitude against this devastating neurodegenerative disease.
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Affiliation(s)
- Merna Roshdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Misr International University, Ahmed Orabi District, Cairo 44971, Egypt
| | - Doaa A Zaky
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt.
| | - Samah S Abbas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Misr International University, Ahmed Orabi District, Cairo 44971, Egypt
| | - Dalaal M Abdallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt
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Gupta N, Sharma PK, Yadav SS, Chauhan M, Datusalia AK, Saha S. Tricompartmental Microcarriers with Controlled Release for Efficient Management of Parkinson's Disease. ACS Biomater Sci Eng 2024; 10:5039-5056. [PMID: 38978474 DOI: 10.1021/acsbiomaterials.4c01042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Parkinson's is a progressive neurodegenerative disease of the nervous system. It has no cure, but its symptoms can be managed by supplying dopamine artificially to the brain.This work aims to engineer tricompartmental polymeric microcarriers by electrohydrodynamic cojetting technique to encapsulate three PD (Parkinson's disease) drugs incorporated with high encapsulation efficiency (∼100%) in a single carrier at a fixed drug ratio of 4:1:8 (Levodopa (LD): Carbidopa(CD): Entacapone (ENT)). Upon oral administration, the drug ratio needs to be maintained during subsequent release from microparticles to enhance the bioavailability of primary drug LD. This presents a notable challenge, as the three drugs vary in their aqueous solubility (LD > CD > ENT). The equilibrium of therapeutic release was achieved using a combination of FDA-approved polymers (PLA, PLGA, PCL, and PEG) and the disc shape of particles. In vitro studies demonstrated the simultaneous release of all the three therapeutics in a sustained and controlled manner. Additionally, pharmacodynamics and pharmacokinetics studies in Parkinson's disease rats induced by rotenone showed a remarkable improvement in PD conditions for the microparticles-fed rats, thereby showing a great promise toward efficient management of PD.
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Affiliation(s)
- Nidhi Gupta
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, Hauz Khas 110016, India
- Department of Applied Chemistry, National Yang-Ming Chiao Tung University, Hsinchu 30010, Taiwan
- International College of Semiconductor Technology, National Yang-Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Pankaj Kumar Sharma
- Delhi Institute of Pharmaceutical Science and Research, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar S3, New Delhi 110017, India
| | - Shreyash Santosh Yadav
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, Uttar Pradesh 226002, India
| | - Meenakshi Chauhan
- Delhi Institute of Pharmaceutical Science and Research, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar S3, New Delhi 110017, India
| | - Ashok Kumar Datusalia
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, Uttar Pradesh 226002, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, Hauz Khas 110016, India
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Wang Y, Ye X, Su W, Yan C, Pan H, Wang X, Shao S. Diosmin ameliorates inflammation, apoptosis and activates PI3K/AKT pathway in Alzheimer's disease rats. Metab Brain Dis 2024:10.1007/s11011-024-01388-7. [PMID: 39105973 DOI: 10.1007/s11011-024-01388-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 07/11/2024] [Indexed: 08/07/2024]
Abstract
Alzheimer's disease (AD), a prevalent cognitive disorder among the elderly, is frequently linked to the abnormal accumulation of myloid-β (Aβ), which is mainly as a result of neuronal death and inflammation. Diosmin, a flavonoid, is considered a potential drug for the treatment of AD. Our study aimed to uncover the molecular mechanism of diosmin in AD therapy. Here, rats were randomly divided into three groups: control, Aβ25-35, and Aβ25-35 + diosmin groups. AD model rats were induced by Aβ25-35 intraventricular injection, meanwhile 50 mg/kg diosmin was orally administered for 6-week intervention. Morris water maze test assessed learning and memory abilities. Hippocampal neuronal damage was determined by HE, Nissl, and TUNEL staining. These assays indicate that diosmin improves cognitive dysfunction and reduces hippocampal neuronal loss and apoptosis. Western blot showed that diosmin reduced Bax (1.21 ± 0.12) and cleaved caspase-3 (1.27 ± 0.12) expression, and increased Bcl-2 (0.70 ± 0.06), p-PI3K (0.71 ± 0.08), and p-AKT (0.96 ± 0.10) in the hippocampus. ELISA indicated diosmin reduces IL-1β, IL-6, and TNF-α levels, suggesting anti-inflammation effect. These results suggest that diosmin inhibits neuronal apoptosis and neuroinflammatory responses to improve cognitive dysfunction in AD rats, possibly related to upregulation of the PI3K/AKT pathway, providing a scientific basis for its use in AD treatment.
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Affiliation(s)
- Yanbo Wang
- Department of Neurology, the Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, 310000, China
| | - Xiaojun Ye
- Department of Neurology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, 310015, China
| | - Wenwen Su
- Department of Internal Medicine, CiXi Seventh People's Hospital, Ningbo, Zhejiang, 315000, China
| | - Ci Yan
- Departments of Psychiatry, Affiliated Mental Health Center, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310000, China
| | - Haiyan Pan
- Department of Endocrinology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, 310000, China
| | - Xiaowei Wang
- Department of Respiratory Medicine, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, 310000, China
| | - Sen Shao
- Department of Neurology, Xixi Hospital of Hangzhou Affiliated to Zhejiang University School of Medicine, No. 2, Hengbu Street, Hangzhou, Zhejiang, 310023, China.
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Abu-Baih DH, Abd El-Mordy FM, Saber EA, Ali SFES, Hisham M, Alanazi MA, Altemani FH, Algehainy NA, Lehmann L, Abdelmohsen UR. Unlocking the potential of edible Ulva sp. seaweeds: Metabolomic profiling, neuroprotective mechanisms, and implications for Parkinson's disease management. Arch Pharm (Weinheim) 2024:e2400418. [PMID: 39086040 DOI: 10.1002/ardp.202400418] [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: 05/25/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 08/02/2024]
Abstract
Green seaweed (Ulva sp.) is frequently used as a food component and nutraceutical agent because of its high polysaccharide and natural fiber content in Asian countries. This study investigates both metabolomic profiling of Ulva sp. and the neuroprotective efficacy of its ethanol extract and its underlying mechanisms in a rotenone-induced rat model of neurodegeneration, mimicking Parkinson's disease (PD) in humans. Metabolomic profiling of Ulva sp. extract was done using liquid chromatography high resolution electrospray ionization mass spectrometry and led to the identification of 22 compounds belonging to different chemical classes.Catenin Beta Additionally, this study demonstrated the neuroprotective properties against rotenone-induced PD, which was achieved through the suppression of elevated levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and IL-6 together with the inhibition of reactive oxygen species (ROS) generation, apoptosis, inflammatory mediators, and the phosphoinositide 3-kinases/serine/threonine protein kinase (PI3K/AKT) pathway. Using a protein-protein interaction network, AKT1, GAPDH, TNF-α, IL-6, caspase 3, signal transducer and activator of transcription 3, Catenin Beta 1, epidermal growth factor receptor, B-cell lymphoma -2, and HSP90AA1 were identified as the top 10 most significant genes. Finally, molecular docking results showed that compounds 1, 3, and 7 might possess a promising anti-parkinsonism effect by binding to active sites of selected hub genes. Therefore, it is hypothesized that the Ulva sp. extract has the potential to be further developed as a potential therapeutic agent for the treatment of PD.
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Affiliation(s)
- Dalia H Abu-Baih
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Deraya University, Minya, Egypt
- Deraya Center for Scientific Research, Deraya University, New Minia City, Minia, Egypt
| | - Fatma Mohamed Abd El-Mordy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | | | | | - Mohamed Hisham
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, New-Minia, Egypt
| | - Mohammad A Alanazi
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Saudi Arabia
| | - Faisal H Altemani
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Saudi Arabia
| | - Naseh A Algehainy
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Saudi Arabia
| | - Leane Lehmann
- Chair of Food Chemistry, Institute of Pharmacy and Food Chemistry, University of Würzburg, Würzburg, Germany
| | - Usama Ramadan Abdelmohsen
- Deraya Center for Scientific Research, Deraya University, New Minia City, Minia, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
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Singh NK, Singh A, Mayank. Nuclear Factor Kappa B: A Nobel Therapeutic Target of FlavonoidsAgainst Parkinson's Disease. Comb Chem High Throughput Screen 2024; 27:2062-2077. [PMID: 38243959 DOI: 10.2174/0113862073295568240105025006] [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: 11/28/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/22/2024]
Abstract
Parkinson's disease (PD), the most common brain-related neurodegenerative disorder, is comprised of several pathophysiological mechanisms, such as mitochondrial dysfunction, neuroinflammation, aggregation of misfolded alpha-synuclein, and synaptic loss in the substantia nigra pars compacta region of the midbrain. Misfolded alpha-synuclein, originating from damaged neurons, triggers a series of signaling pathways in both glial and neuronal cells. Activation of such events results in the production and expression of several proinflammatory cytokines via the activation of the nuclear factor κB (NF-κB) signaling pathway. Consequently, this cascade of events worsens the neurodegenerative processes, particularly in conditions, such as PD and synucleinopathies. Microglia, astrocytes, and neurons are just a few of the many cells and tissues that express the NF-κB family of inducible types of transcription factors. The dual role of NF-κB activation can be crucial for neuronal survival, although the classical NF-κB pathway is important for controlling the generation of inflammatory mediators during neuroinflammation. Modulating NF-κB-associated pathways through the selective action of several agents holds promise for mitigating dopaminergic neuronal degeneration and PD. Several naturally occurring compounds in medicinal plants can be an effective treatment option in attenuating PD-associated dopaminergic neuronal loss via selectively modifying the NF-κB-mediated signaling pathways. Recently, flavonoids have gained notable attention from researchers because of their remarkable anti-neuroinflammatory activity and significant antioxidant properties in numerous neurodegenerative disorders, including PD. Several subclasses of flavonoids, including flavones, flavonols, isoflavones, and anthocyanins, have been evaluated for neuroprotective effects against in vitro and in vivo models of PD. In this aspect, the present review highlights the pathological role of NF-κB in the progression of PD and investigates the therapeutic potential of natural flavonoids targeting the NF-κB signaling pathway for the prevention and management of PD-like manifestations with a comprehensive list for further reference. Available facts strongly support that bioactive flavonoids could be considered in food and/or as lead pharmacophores for the treatment of neuroinflammation-mediated PD. Furthermore, natural flavonoids having potent pharmacological properties could be helpful in enhancing the economy of countries that cultivate medicinal plants yielding bioactive flavonoids on a large scale.
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Affiliation(s)
- Niraj Kumar Singh
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura-281406, UP, India
| | - Ashini Singh
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura-281406, UP, India
| | - Mayank
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura-281406, UP, India
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7
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Desouky MA, George MY, Michel HE, Elsherbiny DA. Roflumilast escalates α-synuclein aggregate degradation in rotenone-induced Parkinson's disease in rats: Modulation of the ubiquitin-proteasome system and endoplasmic reticulum stress. Chem Biol Interact 2023; 379:110491. [PMID: 37105514 DOI: 10.1016/j.cbi.2023.110491] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/02/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023]
Abstract
Perturbation of the protein homeostasis circuit is one of the principal attributes associated with many neurodegenerative disorders, such as Parkinson's disease (PD). This study aimed to explore the neuroprotective effect of roflumilast (ROF), a phosphodiesterase-4 inhibitor, in a rotenone-induced rat model of PD and investigate the potential underlying mechanisms. Interestingly, ROF (1 mg/kg, p.o.) attenuated motor impairment, prevented brain lesions, and rescued the dopaminergic neurons in rotenone-treated rats. Furthermore, it reduced misfolded α-synuclein burden. ROF also promoted the midbrain cyclic adenosine monophosphate level, which subsequently enhanced the 26S proteasome activity and the expression of the 20S proteasome. ROF counteracted rotenone-induced endoplasmic reticulum stress, which was demonstrated by its impact on activating transcription factor 6, glucose-regulated protein 78, and C/EBP homologous protein levels. Moreover, ROF averted rotenone-induced oxidative stress, as evidenced by its effects on the levels of nuclear factor erythroid 2-related factor 2, heme oxygenase-1, reduced glutathione, and lipid peroxides with a significant anti-apoptotic activity. Collectively, this study implies repurposing of ROF as a novel neuroprotective drug owning to its ability to restore normal protein homeostasis.
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Affiliation(s)
- Mahmoud A Desouky
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566, Cairo, Egypt
| | - Mina Y George
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566, Cairo, Egypt
| | - Haidy E Michel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566, Cairo, Egypt.
| | - Doaa A Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566, Cairo, Egypt
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8
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In Vitro Antiviral Effect and Potential Neuroprotection of Salvadora persica L. Stem Bark Extract against Lipopolysaccharides-Induced Neuroinflammation in Mice: LC-ESI-MS/MS Analysis of the Methanol Extract. Pharmaceuticals (Basel) 2023; 16:ph16030398. [PMID: 36986497 PMCID: PMC10058283 DOI: 10.3390/ph16030398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/28/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Neuroinflammation is a serious immunomodulatory complex disorder that causes neurological and somatic ailments. The treatment of brain inflammation with new drugs derived from natural sources is a significant therapeutic goal. Utilizing LC-ESI-MS/MS analysis, the active constituents of Salvadora persica extract (SPE) were identified tentatively as exerting antioxidant and anti-inflammatory effects in natural medicine. Herein, we determined the antiviral potential of SPE against herpes simplex virus type 2 (HSV-2) using the plaque assay. HSV-2 is a neurotropic virus that can cause neurological diseases. SPE exhibited promising antiviral potential with a half-maximal cytotoxic concentration (CC50) of 185.960 ± 0.1 µg/mL and a half-maximal inhibitory concentration (IC50) of 8.946 ± 0.02 µg/mL. The in vivo study of the SPE impact against lipopolysaccharide (LPS)-induced neuroinflammation was performed using 42 mice divided into seven groups. All groups were administered LPS (0.25 mg/kg) intraperitoneally, except for the normal and SPE groups 1 and 2. Groups 5, 6, and 7 received 100, 200, and 300 mg/kg SPE. It was revealed that SPE inhibited acetylcholinesterase in the brain. It increased superoxide dismutase and catalase while decreasing malondialdehyde, which explains its antioxidative stress activity. SPE downregulated the gene expression of the inducible nitric oxide synthase, as well as the apoptotic markers (caspase-3 and c-Jun). In addition, it decreased the expression of the proinflammatory cytokines (interleukin-6 and tumor necrosis factor-alpha). Mice administered SPE (300 mg/kg) with LPS exhibited normal neurons in the cerebral cortices, hippocampus pyramidal layer, and cerebellum, as determined by the histopathological analysis. Therefore, using S. persica to prevent and treat neurodegeneration could be a promising new therapeutic strategy to be explored.
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Anti-Inflammatory Effects of Flavonoids in Common Neurological Disorders Associated with Aging. Int J Mol Sci 2023; 24:ijms24054297. [PMID: 36901731 PMCID: PMC10001833 DOI: 10.3390/ijms24054297] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 02/24/2023] Open
Abstract
Aging reduces homeostasis and contributes to increasing the risk of brain diseases and death. Some of the principal characteristics are chronic and low-grade inflammation, a general increase in the secretion of proinflammatory cytokines, and inflammatory markers. Aging-related diseases include focal ischemic stroke and neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD). Flavonoids are the most common class of polyphenols and are abundantly found in plant-based foods and beverages. A small group of individual flavonoid molecules (e.g., quercetin, epigallocatechin-3-gallate, and myricetin) has been used to explore the anti-inflammatory effect in vitro studies and in animal models of focal ischemic stroke and AD and PD, and the results show that these molecules reduce the activated neuroglia and several proinflammatory cytokines, and also, inactivate inflammation and inflammasome-related transcription factors. However, the evidence from human studies has been limited. In this review article, we highlight the evidence that individual natural molecules can modulate neuroinflammation in diverse studies from in vitro to animal models to clinical studies of focal ischemic stroke and AD and PD, and we discuss future areas of research that can help researchers to develop new therapeutic agents.
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10
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Lipopolysaccharide Exacerbates Ketamine-Induced Psychotic-Like Behavior, Oxidative Stress, and Neuroinflammation in Mice: Ameliorative Effect of Diosmin. J Mol Neurosci 2023; 73:129-142. [PMID: 36652038 DOI: 10.1007/s12031-022-02077-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/07/2022] [Indexed: 01/19/2023]
Abstract
Schizophrenia, a neuropsychiatric disorder has been associated with aberrant neurotransmission affecting behaviors, social preference, and cognition. Limitations in understanding its pathogenesis via the dopamine hypothesis have engendered other hypotheses such as the glutamate hypothesis. That antagonism of the N-methyl-D-aspartate receptor (NMDAR) elicits schizophrenia-like behaviors indistinguishable from the disorder in animal and human models. There are growing concerns that redox imbalance and neuro-immuno dysfunction may play role in aggravating the symptomologies of this disorder. This 14-day treatment study was designed to investigate the effect of diosmin on lipopolysaccharide (LPS) plus ketamine (NMDAR antagonist). Mice were divided into 4 groups (n = 6). Group 1 was administered 5% DMSO (10 mL/kg, i.p) while group 2-4 received LPS (0.1 mg/kg, i.p) daily for 14 days. Diosmin (50 mg/kg, i.p) and risperidone (0.5 mg/kg, i.p) were given to groups 3 and 4 respectively. Groups 2-4 were given KET (20 mg/kg, i.p.) daily from days 8-14. Behavioral tests were done 30 min after the last dose, and oxidative stress and neuroinflammatory maker were assayed. LPS plus ketamine-induced hyperlocomotion, stereotypy, decreased social preference, and memory impairment. Furthermore, LPS plus-ketamine-induced oxidative stress (reduced GSH, CAT, SOD, and increased MDA and nitrite levels) and marked pro-inflammatory cytokines TNF-α and IL-6 suggesting neuroinflammation. However, diosmin attenuated behavioral deficits and improved memory. Additionally, diosmin potentiated antioxidant level via increased GSH, CAT, and SOD while reducing MDA and nitrite levels. Finally, diosmin reduced TNF-α and IL-6 suggesting anti-neuro-immuno activity. Conclusively, diosmin attenuated LPS plus ketamine-induced behavioral deficits, oxidative stress, neuroinflammation, and improved memory.
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Toki E, Goto S, Setoguchi S, Terada K, Watase D, Yamakawa H, Yamada A, Koga M, Kubota K, Iwasaki K, Karube Y, Matsunaga K, Takata J. Delivery of the reduced form of vitamin K 2(20) to NIH/3T3 cells partially protects against rotenone induced cell death. Sci Rep 2022; 12:19878. [PMID: 36400879 PMCID: PMC9674836 DOI: 10.1038/s41598-022-24456-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Mitochondria generate energy through the action of the electron transport chain (ETC) and ATP synthase. Mitochondrial malfunction can lead to various disorders, including neurodegenerative diseases. Several reports have shown that menaquinone-4 (MK-4, vitamin K2(20)), a safe drug for osteoporosis, may improve mitochondrial function. Here, we hypothesized that the efficient delivery of menahydroquinone-4 (MKH), an active form of MK-4, could exert a supporting effect. We verified the effects of MKH delivery on mitochondrial dysfunction by using MK-4 and MKH ester derivatives in NIH/3T3 mouse fibroblast cells treated with mitochondrial inhibitors. MK-4 and MKH derivatives suppressed cell death, the decline in mitochondrial membrane potential (MMP), excessive reactive oxygen species (ROS) production, and a decrease in intrinsic coenzyme Q9 (CoQ9) induced by rotenone (ROT, complex I inhibitor). MK-4 and MKH derivatives delivered MKH to NIH/3T3 cells, acting as an effective MKH prodrug, proving that the delivered MKH may reflect the mitigation effects on ROT-induced mitochondrial dysfunction. MKH prodrugs are also effective against 3-nitropropionic acid (3-NP, complex II inhibitor) and carbonyl cyanide-m-chlorophenylhydrazone (CCCP, uncoupler)-induced cell death. In conclusion, MKH delivery may mitigate mitochondrial dysfunction by maintaining MMP, ROS, and CoQ9, indicating that MKH prodrugs may be good candidates for treating mitochondrial disorders.
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Affiliation(s)
- Erina Toki
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Shotaro Goto
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Shuichi Setoguchi
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Kazuki Terada
- grid.412142.00000 0000 8894 6108Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Himeji, 670-8524 Japan
| | - Daisuke Watase
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Hirofumi Yamakawa
- grid.411497.e0000 0001 0672 2176Radioisotope Center, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Ayano Yamada
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Mitsuhisa Koga
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Kaori Kubota
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Katsunori Iwasaki
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Yoshiharu Karube
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Kazuhisa Matsunaga
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
| | - Jiro Takata
- grid.411497.e0000 0001 0672 2176Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, 814-0180 Japan
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12
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Chen Y, Peng F, Xing Z, Chen J, Peng C, Li D. Beneficial effects of natural flavonoids on neuroinflammation. Front Immunol 2022; 13:1006434. [PMID: 36353622 PMCID: PMC9638012 DOI: 10.3389/fimmu.2022.1006434] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/03/2022] [Indexed: 12/05/2022] Open
Abstract
Neuroinflammation is the fundamental immune response against multiple factors in the central nervous system and is characterized by the production of inflammatory mediators, activated microglia and astrocytes, and the recruitment of innate and adaptive immune cells to inflammatory sites, that contributes to the pathological process of related brain diseases, such as Alzheimer’s disease, Parkinson’s disease, depression, and stroke. Flavonoids, as a species of important natural compounds, have been widely revealed to alleviate neuroinflammation by inhibiting the production of pro-inflammatory mediators, elevating the secretion of anti-inflammatory factors, and modulating the polarization of microglia and astrocyte, mainly via suppressing the activation of NLRP3 inflammasome, as well as NF-κB, MAPK, and JAK/STAT pathways, promoting Nrf2, AMPK, BDNF/CREB, Wnt/β-Catenin, PI3k/Akt signals and SIRT1-mediated HMGB1 deacetylation. This review will provide the latest and comprehensive knowledge on the therapeutic benefits and mechanisms of natural flavonoids in neuroinflammation, and the natural flavonoids might be developed into food supplements or lead compounds for neuroinflammation-associated brain disorders.
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Affiliation(s)
- Yu Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Ziwei Xing
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Junren Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Cheng Peng, ; Dan Li,
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Cheng Peng, ; Dan Li,
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Shaaban HH, Hozayen WG, Khaliefa AK, El-Kenawy AE, Ali TM, Ahmed OM. Diosmin and Trolox Have Anti-Arthritic, Anti-Inflammatory and Antioxidant Potencies in Complete Freund’s Adjuvant-Induced Arthritic Male Wistar Rats: Roles of NF-κB, iNOS, Nrf2 and MMPs. Antioxidants (Basel) 2022; 11:antiox11091721. [PMID: 36139795 PMCID: PMC9495550 DOI: 10.3390/antiox11091721] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease caused by a malfunction of the immune system. The aim of this study was to examine the anti-arthritic effects and suggest the mechanisms of actions of diosmin and trolox in male Wistar rats. Complete Freund’s adjuvant (CFA) was used to establish RA in the animals by subcutaneous injection of 100 µL CFA/rat into plantar region of right hind leg in two consecutive days. Diosmin and/or trolox were administered orally at a dosage of 20 mg/kg/day to CFA-induced arthritic rats for 2 weeks. The normal and arthritic control groups were orally given the same equivalent volume of a vehicle (1% carboxymethyl cellulose) in which treatment agents were dissolved. At the end of the experiment, blood samples were collected from the jugular vein for the detection of the total leukocyte count (TLC) and differential leukocyte count (DLC) in blood and the detection of rheumatoid factor (RF), anti-citrullinated protein antibodies (ACPA), tumor necrosis factor-α (TNF-α), interleukin-13 (IL-13), and interleukin-17 (IL-17) levels by enzyme-linked immunosorbent assay (ELISA), as well as markers of oxidative stress and the antioxidant defense system in serum. The right hind ankle regions of three rats from each group were dissected out and fixed in 10% neutral-buffered formalin for histological examination and the other three were kept at −30 °C for Western blot analysis of nuclear factor-kappa B (NF-κB) protein 50 (NF-κB p50), NF-κB p65, inducible nitric oxide synthase (iNOS), nuclear factor erythroid-2-related factor 2 (Nrf2), and matrix metalloproteinase (MMP)-1 (MMP-1), MMP-3, and MMP-9. The CFA injection was deleterious to the ankle joint’s histological architecture, manifesting as infiltration of inflammatory cells into the articular cartilage, hyperplasia of the synovium, and erosion of the cartilage. All these effects were ameliorated by diosmin and/or trolox, with the combined dose being the most effective. The two compounds significantly lowered the elevated serum levels of RF, ACPA, TNF-α, and IL-17, as well as other pro-inflammatory mediators, such as NF-κB p50, NF-κB p65, iNOS, MMP-1, MMP-3 and MMP-9. They also increased the levels of the anti-inflammatory cytokine, IL-13, and the cytoprotective transcription factor Nrf2. The compounds stimulated higher activities of antioxidants, such as glutathione, glutathione-S-transferase, catalase, and superoxide dismutase, and reduced lipid peroxidation in the serum of arthritic rats. In conclusion, diosmin, trolox, and their combination, which was the most potent, exerted anti-arthritic, anti-inflammatory and antioxidant effects by suppressing NF-κB signaling, inhibiting matrix metalloproteinases, and activating Nrf2.
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Affiliation(s)
- Huda H. Shaaban
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Walaa G. Hozayen
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Amal K. Khaliefa
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Ayman E. El-Kenawy
- Department of Pathology, College of Medicine, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Tarek M. Ali
- Department of Physiology, College of Medicine, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Osama M. Ahmed
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
- Correspondence: or
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Forloni G, La Vitola P, Balducci C. Oligomeropathies, inflammation and prion protein binding. Front Neurosci 2022; 16:822420. [PMID: 36081661 PMCID: PMC9445368 DOI: 10.3389/fnins.2022.822420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
The central role of oligomers, small soluble aggregates of misfolded proteins, in the pathogenesis of neurodegenerative disorders is recognized in numerous experimental conditions and is compatible with clinical evidence. To underline this concept, some years ago we coined the term oligomeropathies to define the common mechanism of action of protein misfolding diseases like Alzheimer, Parkinson or prion diseases. Using simple experimental conditions, with direct application of synthetic β amyloid or α-synuclein oligomers intraventricularly at micromolar concentrations, we could detect differences and similarities in the biological consequences. The two oligomer species affected cognitive behavior, neuronal dysfunction and cerebral inflammatory reactions with distinct mechanisms. In these experimental conditions the proposed mediatory role of cellular prion protein in oligomer activities was not confirmed. Together with oligomers, inflammation at different levels can be important early in neurodegenerative disorders; both β amyloid and α-synuclein oligomers induce inflammation and its control strongly affects neuronal dysfunction. This review summarizes our studies with β-amyloid or α-synuclein oligomers, also considering the potential curative role of doxycycline, a well-known antibiotic with anti-amyloidogenic and anti-inflammatory activities. These actions are analyzed in terms of the therapeutic prospects.
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Zhu Y, Luo M, Bai X, Lou Y, Nie P, Jiang S, Li J, Li B, Luo P. Administration of mesenchymal stem cells in diabetic kidney disease: mechanisms, signaling pathways, and preclinical evidence. Mol Cell Biochem 2022; 477:2073-2092. [PMID: 35469057 DOI: 10.1007/s11010-022-04421-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/22/2022] [Indexed: 02/07/2023]
Abstract
Diabetic kidney disease (DKD) is a serious microvascular complication of diabetes. Currently, the prevalence and mortality of DKD are increasing annually. However, with no effective drugs to prevent its occurrence and development, the primary therapeutic option is to control blood sugar and blood pressure. Therefore, new and effective drugs/methods are imperative to prevent the development of DKD in patients with diabetes. Mesenchymal stem cells (MSCs) with multi-differentiation potential and paracrine function have received extensive attention as a new treatment option for DKD. However, their role and mechanism in the treatment of DKD remain unclear, and clinical applications are still being explored. Given this, we here provide an unbiased review of recent advances in MSCs for the treatment of DKD in the last decade from the perspectives of the pathogenesis of DKD, biological characteristics of MSCs, and different molecular and signaling pathways. Furthermore, we summarize information on combination therapy strategies using MSCs. Finally, we discuss the challenges and prospects for clinical application.
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Affiliation(s)
- Yuexin Zhu
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Manyu Luo
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Xue Bai
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Yan Lou
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Ping Nie
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Shan Jiang
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Jicui Li
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China
| | - Bing Li
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China.
| | - Ping Luo
- Department of Nephrology, The Second Hospital of Jilin University, 218 ZiQiang Street, Changchun, 130041, Jilin, People's Republic of China.
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