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Tripathi PN, Lodhi A, Rai SN, Nandi NK, Dumoga S, Yadav P, Tiwari AK, Singh SK, El-Shorbagi ANA, Chaudhary S. Review of Pharmacotherapeutic Targets in Alzheimer's Disease and Its Management Using Traditional Medicinal Plants. Degener Neurol Neuromuscul Dis 2024; 14:47-74. [PMID: 38784601 PMCID: PMC11114142 DOI: 10.2147/dnnd.s452009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cognitive decline, memory loss, and impaired daily functioning. While there is currently no cure for AD, several pharmacotherapeutic targets and management strategies have been explored. Additionally, traditional medicinal plants have gained attention for their potential role in AD management. Pharmacotherapeutic targets in AD include amyloid-beta (Aβ) aggregation, tau protein hyperphosphorylation, neuroinflammation, oxidative stress, and cholinergic dysfunction. Traditional medicinal plants, such as Ginkgo biloba, Huperzia serrata, Curcuma longa (turmeric), and Panax ginseng, have demonstrated the ability to modulate these targets through their bioactive compounds. Ginkgo biloba, for instance, contains flavonoids and terpenoids that exhibit neuroprotective effects by reducing Aβ deposition and enhancing cerebral blood flow. Huperzia serrata, a natural source of huperzine A, has acetylcholinesterase-inhibiting properties, thus improving cholinergic function. Curcuma longa, enriched with curcumin, exhibits anti-inflammatory and antioxidant effects, potentially mitigating neuroinflammation and oxidative stress. Panax ginseng's ginsenosides have shown neuroprotective and anti-amyloidogenic properties. The investigation of traditional medicinal plants as a complementary approach to AD management offers several advantages, including a lower risk of adverse effects and potential multi-target interactions. Furthermore, the cultural knowledge and utilization of these plants provide a rich source of information for the development of new therapies. However, further research is necessary to elucidate the precise mechanisms of action, standardize preparations, and assess the safety and efficacy of these natural remedies. Integrating traditional medicinal-plant-based therapies with modern pharmacotherapies may hold the key to a more comprehensive and effective approach to AD treatment. This review aims to explore the pharmacotherapeutic targets in AD and assess the potential of traditional medicinal plants in its management.
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Affiliation(s)
- Prabhash Nath Tripathi
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India
| | - Ankit Lodhi
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India
| | - Sachchida Nand Rai
- Center of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Nilay Kumar Nandi
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India
| | - Shweta Dumoga
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India
| | - Pooja Yadav
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India
| | - Amit Kumar Tiwari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Santosh Kumar Singh
- Center of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Abdel-Nasser A El-Shorbagi
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Sachin Chaudhary
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
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Kim DS, Lee HJ, Sim DY, Park JE, Park Y, Kim B, Shim B, Kim SH. The underlying hepatoprotective mechanism of PKC#963 in alcohol or carbon tetrachloride induced liver injury via inhibition of iNOS, COX-2, and p-STAT3 and enhancement of SOD and catalase. Phytother Res 2023; 37:505-514. [PMID: 36151597 DOI: 10.1002/ptr.7630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/10/2022] [Accepted: 09/05/2022] [Indexed: 11/12/2022]
Abstract
The aim of the present study is to explore the underlying hepatoprotective mechanism of PKC#963, consisting of Pinus koraiensis, Saururus chinensis, and Lycium barbarum in association with acute and chronic liver injury induced by alcohol or carbon tetrachloride (CCl4). Here, PKC#963 significantly suppressed aspartate aminotransferase (AST), alanine aminotransferase (ALT), phosphorylated signal transducer and activator of transcription 3 (p-STAT3), inducible nitric oxide synthase (iNOS), and cyclooxygenase (COX-2) in CCl4-treated HepG2 cells. Also, PKC#963 significantly suppressed reactive oxygen species (ROS) production in HepG2 cells. Consistently, PKC#963 suppressed the expression of AST, ALT, p-STAT3, iNOS, COX-2, interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-α) and α-smooth muscle actin (α-SMA) and increased procaspase 3 in the liver tissues of CCl4 treated rats. In addition, PKC#963 enhanced alcohol dehydrogenase (ADH), aldehyde dehydrogenase (ALDH) for alcohol metabolism, superoxide dismutase (SOD), and catalase as antioxidant enzymes and also suppressed AST and ALT in alcohol-treated rats. Furthermore, PKC#963 reduced hepatic steatosis and necrosis in CCl4-treated rats by H&E (Hematoxylin and Eosin) staining. Taken together, these findings highlight evidence that PKC#963 has hepatoprotective potential via inhibition of iNOS, COX-2, and p-STAT3 and enhancement of SOD and catalase.
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Affiliation(s)
- Dong Sub Kim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyo-Jung Lee
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Deok Yong Sim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ji Eon Park
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Youngsang Park
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Bumsang Shim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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Hayashi K, Sato K, Ochi S, Kawano S, Munesue S, Harashima A, Oshima Y, Kimura K, Kyoi T, Yamamoto Y. Inhibitory Effects of Saururus chinensis Extract on Receptor for Advanced Glycation End-Products-Dependent Inflammation and Diabetes-Induced Dysregulation of Vasodilation. Int J Mol Sci 2022; 23:ijms23105757. [PMID: 35628567 PMCID: PMC9147798 DOI: 10.3390/ijms23105757] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 02/04/2023] Open
Abstract
Advanced glycation end-products (AGEs) and the receptor for AGEs (RAGE) are implicated in inflammatory reactions and vascular complications in diabetes. Signaling pathways downstream of RAGE are involved in NF-κB activation. In this study, we examined whether ethanol extracts of Saururus chinensis (Lour.) Baill. (SE) could affect RAGE signaling and vascular relaxation in streptozotocin (STZ)-induced diabetic rats. Treatment with SE inhibited AGEs-modified bovine serum albumin (AGEs-BSA)-elicited activation of NF-κB and could compete with AGEs-BSA binding to RAGE in a dose-dependent manner. Tumor necrosis factor-α (TNF-α) secretion induced by lipopolysaccharide (LPS)-a RAGE ligand-was also reduced by SE treatment in wild-type Ager+/+ mice as well as in cultured peritoneal macrophages from Ager+/+ mice but not in Ager-/- mice. SE administration significantly ameliorated diabetes-related dysregulation of acetylcholine-mediated vascular relaxation in STZ-induced diabetic rats. These results suggest that SE would inhibit RAGE signaling and would be useful for the improvement of vascular endothelial dysfunction in diabetes.
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Affiliation(s)
- Kenjiro Hayashi
- Food Development Labs, Functional Food Division, Nippon Shinyaku Co., Ltd., Kyoto 601-8550, Japan; (K.H.); (K.S.); (S.O.); (S.K.); (T.K.)
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
| | - Koichi Sato
- Food Development Labs, Functional Food Division, Nippon Shinyaku Co., Ltd., Kyoto 601-8550, Japan; (K.H.); (K.S.); (S.O.); (S.K.); (T.K.)
| | - Seishi Ochi
- Food Development Labs, Functional Food Division, Nippon Shinyaku Co., Ltd., Kyoto 601-8550, Japan; (K.H.); (K.S.); (S.O.); (S.K.); (T.K.)
| | - Shuhei Kawano
- Food Development Labs, Functional Food Division, Nippon Shinyaku Co., Ltd., Kyoto 601-8550, Japan; (K.H.); (K.S.); (S.O.); (S.K.); (T.K.)
| | - Seiichi Munesue
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
| | - Ai Harashima
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
| | - Yu Oshima
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
| | - Kumi Kimura
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
| | - Takashi Kyoi
- Food Development Labs, Functional Food Division, Nippon Shinyaku Co., Ltd., Kyoto 601-8550, Japan; (K.H.); (K.S.); (S.O.); (S.K.); (T.K.)
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa 920-8640, Japan; (S.M.); (A.H.); (Y.O.); (K.K.)
- Correspondence:
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Olayinka J, Eduviere A, Adeoluwa O, Fafure A, Adebanjo A, Ozolua R. Quercetin mitigates memory deficits in scopolamine mice model via protection against neuroinflammation and neurodegeneration. Life Sci 2022; 292:120326. [PMID: 35031260 DOI: 10.1016/j.lfs.2022.120326] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/01/2022] [Accepted: 01/07/2022] [Indexed: 12/24/2022]
Abstract
AIMS Neurodegenerative disorders like Alzheimer's disease (AD) are outcomes of neuroinflammatory processes that result in memory impairment. Quercetin (QT), a plant based flavonoid, has demonstrated notable effects against neurodegeneration and inflammation in models of dementia. However, the underlying mechanisms have not been well elucidated. This study evaluated the possible effects of QT against neuroinflammation and neurodegeneration in scopolamine (SC) induced memory impairment. MAIN METHODS SC was used to induce memory loss in mice after which novel object recognition test (NORT) was used to assess memory function. Enzyme-linked immunosorbent assay (ELISA) was used to determine the levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in the brain tissues of the animals. Brain histology was carried out on the hippocampus (cornus ammonis 1, cornus ammonis 3 and dentate gyrus), and the prefrontal cortex. The population of healthy neuronal cells was counted, using ImageJ software. Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) was employed for the identification of cells undergoing apoptosis. KEY FINDINGS QT reversed memory impairment in the NORT. Increases in TNF-α and IL-6 were attenuated by QT, and histology revealed that QT attenuated SC-induced cell degeneration and death in the hippocampal sub-regions and prefrontal cortex. QT diminished the population of dead cells in SC-treated mice, and also reversed the process of apoptosis induced by SC. SIGNIFICANCE Findings from the study suggest that QT mitigates pro-inflammatory mediators and reverses neurodegeneration to restore memory function.
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Affiliation(s)
- Juliet Olayinka
- Neuropharmacology Unit, Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, Afe-Babalola University, Ado-Ekiti, Nigeria; Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Benin, Benin City 300001, Nigeria.
| | - Anthony Eduviere
- Department of Pharmacology & Therapeutics, Faculty of Basic Medical Sciences, Delta State University, Abraka, Nigeria
| | - Olusegun Adeoluwa
- Neuropharmacology Unit, Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, Afe-Babalola University, Ado-Ekiti, Nigeria
| | - Adedamola Fafure
- Department of Anatomy, College of Medicine & Health Sciences, Afe-Babalola University, Ado-Ekiti, Nigeria
| | - Adeshina Adebanjo
- Department of Civil Engineering, College of Engineering, Afe-Babalola University, Ado-Ekiti, Nigeria
| | - Raymond Ozolua
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Benin, Benin City 300001, Nigeria
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Zhang J, Rho Y, Kim MY, Cho JY. TAK1 in the AP-1 pathway is a critical target of Saururus chinensis (Lour.) Baill in its anti-inflammatory action. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114400. [PMID: 34245837 DOI: 10.1016/j.jep.2021.114400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/30/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Saururus chinensis (Lour.) Baill (Saururaceae), also known as Asian lizard's tail, is a plant commonly found in East Asia. Its leaves have been used in traditional medicine to treat many diseases such as edema, pneumonia, hypertension, leproma, jaundice, gonorrhea, and rheumatoid arthritis. AIM OF THE STUDY Based on the efficacies of S. chinensis, the anti-inflammatory effects of this plant and the molecular mechanism were evaluated using the ethanol extract of S. chinensis leaves (Sc-EE). MATERIALS AND METHODS The production of pro-inflammatory mediators and cytokines in response to Sc-EE was evaluated using Griess and semi-quantitative reverse transcription-polymerase chain reactions. Furthermore, relevant proteins including c-Jun, c-Fos, p38, JNK, ERK, MEK1/2, MKK3/6, MKK4/7, and TAK1 were detected through immunoblotting. RESULTS Sc-EE diminished production of nitric oxide (NO); decreased expression levels of cyclooxygenase (COX)-2, interleukin (IL)-6, inducible NO synthase (iNOS), and IL-1β in LPS-stimulated RAW264.7 cells; and attenuated activator protein 1 (AP-1)-mediated luciferase activities. The extract markedly downregulated the phosphorylation of TAK1, upregulated thermal stability of TAK1, and reduced TAK1/AP-1-mediated luciferase activity in LPS-treated RAW264.7 cells and TAK1-overexpressing HEK293T cells. CONCLUSIONS These results demonstrated that Sc-EE suppresses pro-inflammatory gene expression through blockade of the TAK1/AP-1 pathway in LPS-treated RAW264.7 macrophages, implying that inhibition of TAK1/AP-1 signaling by S. chinensis is a key event in its anti-inflammatory activity.
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Affiliation(s)
- Jianmei Zhang
- Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Yangkook Rho
- Development Center, Dadang and Bio Co., Suwon, 16679, Republic of Korea.
| | - Mi-Yeon Kim
- School of Systems Biomedical Science, Soongsil University, Seoul, 06978, Republic of Korea.
| | - Jae Youl Cho
- Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Caruso G, Torrisi SA, Mogavero MP, Currenti W, Castellano S, Godos J, Ferri R, Galvano F, Leggio GM, Grosso G, Caraci F. Polyphenols and neuroprotection: Therapeutic implications for cognitive decline. Pharmacol Ther 2021; 232:108013. [PMID: 34624428 DOI: 10.1016/j.pharmthera.2021.108013] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/07/2021] [Accepted: 09/28/2021] [Indexed: 02/09/2023]
Abstract
Dietary polyphenols have been the focus of major interest for their potential benefits on human health. Several preclinical studies have been conducted to provide a rationale for their potential use as therapeutic agents in preventing or ameliorating cognitive decline. However, results from human studies are scarce and poorly documented. The aim of this review was to discuss the potential mechanisms involved in age-related cognitive decline or early stage cognitive impairment and current evidence from clinical human studies conducted on polyphenols and the aforementioned outcomes. The evidence published so far is encouraging but contrasting findings are to be taken into account. Most studies on anthocyanins showed a consistent positive effect on various cognitive aspects related to aging or early stages of cognitive impairment. Studies on cocoa flavanols, resveratrol, and isoflavones provided substantial contrasting results and further research is needed to clarify the therapeutic potential of these compounds. Results from other studies on quercetin, green tea flavanols, hydroxycinnamic acids (such as chlorogenic acid), curcumin, and olive oil tyrosol and derivatives are rather promising but still too few to provide any real conclusions. Future translational studies are needed to address issues related to dosage, optimal formulations to improve bioavailability, as well as better control for the overall diet, and correct target population.
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Affiliation(s)
- Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
| | - Sebastiano A Torrisi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Maria Paola Mogavero
- Istituti Clinici Scientifici Maugeri, IRCCS, Scientific Institute of Pavia, Pavia, Italy
| | - Walter Currenti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Sabrina Castellano
- Department of Educational Sciences, University of Catania, Catania, Italy
| | - Justyna Godos
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Fabio Galvano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Gian Marco Leggio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, Catania, Italy; Oasi Research Institute - IRCCS, Troina, Italy
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Fan M, Li T, Li Y, Qian H, Zhang H, Rao Z, Wang L. Vaccinium bracteatum Thunb. as a promising resource of bioactive compounds with health benefits: An updated review. Food Chem 2021; 356:129738. [PMID: 33839532 DOI: 10.1016/j.foodchem.2021.129738] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/25/2021] [Accepted: 03/28/2021] [Indexed: 11/27/2022]
Abstract
Vaccinium bracteatum Thunb.(VBT) is well-known for many physiological and bioactivities in some ancient Chinese pharmacopeias and modern researches. The health benefits are related to the presence of various nutritional and bioactive compounds. This review aims to demonstrate an updated overview of VBT in respect of botanical characters, nutritional and bioactive composition, main biological activities, and current applications. Various studies have emphasized at promising health benefits of VBT against hyperglycemia, oxidative stress, inflammation, depressive disorder, and retinal damage. However, the applications of VBT are limited to some native traditional foods and Chinese medicine. The novel beneficial efficacy and applications are still needed to be investigated. In conclusion, more research is necessary to overcome these gaps between the in-depth insights of health benefits and potential industrial applications. This review will contribute in future research for developing the functional foods derived from VBT.
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Affiliation(s)
- Mingcong Fan
- School of Food Science and Technology, State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Tingting Li
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yan Li
- School of Food Science and Technology, State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Haifeng Qian
- School of Food Science and Technology, State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Hui Zhang
- School of Food Science and Technology, State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Zhiming Rao
- School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Li Wang
- School of Food Science and Technology, State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
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Janubova M, Hatok J, Konarikova K, Zitnanova I. γ- and δ-Tocotrienols interfere with senescence leading to decreased viability of cells. Mol Cell Biochem 2020; 476:897-908. [PMID: 33128213 DOI: 10.1007/s11010-020-03954-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/15/2020] [Indexed: 11/30/2022]
Abstract
Senescence is an irreversible permanent cell cycle arrest accompanied by changes in cell morphology and physiology. Bioactive compounds including tocotrienols (vitamin E) can affect important biological functions. The aim of this study was to investigate how γ- and δ-tocotrienols can affect stress-induced premature senescence. We established two different models of premature stress senescence by induction of senescence with either hydrogen peroxide or etoposide in human lung fibroblasts MRC-5 (ECACC, England). We observed increased percentage of cells with increased SA-β-galactosidase activity, decreased cell viability/proliferation and increased level of p21 in both models. In addition, γ-tocotrienol or δ-tocotrienol (both at concentrations of 150, 200 and 300 μM) were added to the cells along with the inductor of senescence (cotreatment). We have found that this cotreatment led to the decrease of cell viability/proliferation in both models of premature stress senescence, but did not change the percentage of senescent cells. Moreover, we detected no expression of caspase-3 or apoptotic DNA fragmentation in any models of premature stress senescence after the cotreatment with γ- as well as δ-tocotrienols. However, an increased level of autophagic protein LC-3 II was detected in cells with hydrogen peroxide-induced senescence after the cotreatment with γ-tocotrienol as well as δ-tocotrienol. In case of etoposide-induced senescence only δ-tocotrienol cotreatment led to an increased level of LC-3 II protein in cells. According to our work δ-tocotrienol is more effective compound than γ-tocotrienol.
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Affiliation(s)
- Maria Janubova
- Faculty of Medicine, Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Bratislava, Slovakia.
| | - Jozef Hatok
- Jessenius Faculty of Medicine, Department of Medical Biochemistry, Comenius University, Bratislava, Martin, Slovakia
| | - Katarina Konarikova
- Faculty of Medicine, Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Bratislava, Slovakia
| | - Ingrid Zitnanova
- Faculty of Medicine, Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Bratislava, Slovakia
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Khadka B, Lee JY, Park DH, Kim KT, Bae JS. The Role of Natural Compounds and their Nanocarriers in the Treatment of CNS Inflammation. Biomolecules 2020; 10:E1401. [PMID: 33019651 PMCID: PMC7601486 DOI: 10.3390/biom10101401] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 09/25/2020] [Accepted: 09/26/2020] [Indexed: 12/16/2022] Open
Abstract
Neuroinflammation, which is involved in various inflammatory cascades in nervous tissues, can result in persistent and chronic apoptotic neuronal cell death and programmed cell death, triggering various degenerative disorders of the central nervous system (CNS). The neuroprotective effects of natural compounds against neuroinflammation are mainly mediated by their antioxidant, anti-inflammatory, and antiapoptotic properties that specifically promote or inhibit various molecular signal transduction pathways. However, natural compounds have several limitations, such as their pharmacokinetic properties and stability, which hinder their clinical development and use as medicines. This review discusses the molecular mechanisms of neuroinflammation and degenerative diseases of CNS. In addition, it emphasizes potential natural compounds and their promising nanocarriers for overcoming their limitations in the treatment of neuroinflammation. Moreover, recent promising CNS inflammation-targeted nanocarrier systems implementing lesion site-specific active targeting strategies for CNS inflammation are also discussed.
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Affiliation(s)
- Bikram Khadka
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Mokpo National University, Muan-gun, Jeonnam 58554, Korea;
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea;
| | - Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea;
| | - Ki-Taek Kim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Mokpo National University, Muan-gun, Jeonnam 58554, Korea;
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMR1, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea
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10
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Taxonomic Distribution of Medicinal Plants for Alzheimer’s Disease: A Cue to Novel Drugs. Int J Alzheimers Dis 2020. [DOI: 10.1155/2020/7603015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder manifested by decline in memory and mild cognitive impairment leading to dementia. Despite global occurrence of AD, the severity and hence onset of dementia vary among different regions, which was correlated with the customary use of medicinal herbs and exposure level to the causatives. In spite of execution of versatile therapeutic strategies to combat AD and other neurodegenerative diseases, success is only limited to symptomatic treatment. The role of natural remedies remained primitive and irreplaceable in all ages. In some examples, the extracted drugs failed to show comparable results due to lack of micro ingredients. Micro ingredients impart a peerless value to natural remedies which are difficult to isolate and/or determine their precise role during treatment. A variety of plants have been used for memory enhancement and other dementia-related complications since ages. Acetyl choline esterase inhibition, antioxidant potential, neuroprotection, mitochondrial energy restoration, and/or precipitated protein clearance put a vast taxonomic variety into a single group of anti-AD plants. Secondary metabolites derived from these medicinal plants have the potential to treat AD and other brain diseases of common pathology. This review summarizes the potential of taxonomically diverse medicinal plants in the treatment of AD serving as a guide to further exploration.
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Liu G, Zhao Z, Shen M, Zhao X, Xie J, He X, Li C. A Review of Traditional Uses, Phytochemistry, and Pharmacological Properties of the Genus Saururus. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:47-76. [PMID: 31964158 DOI: 10.1142/s0192415x20500032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The genus Saururus, belonging to Saururaceae, contains two species, S. cernuus L. and S. chinensis (Lour) Baill. with common utilization in traditional medicine from Asia to North America for the treatment of edema, beriberi, jaundice, leucorrhea, urinary tract infections, hypertension, hepatitis diseases, and tumors. An extensive review of literature was made on traditional uses, phytochemistry, and ethnopharmacology of Saururus using ethno-botanical books, published articles, and electronic databases. The 147 of chemical constituents have been isolated and identified from S. cernuus and S. chinensis, and lignans, flavonoids, alkaloids, anthraquinones, saponins, and phenols are the major constituents. Various pharmacological investigations in many in vitro and in vivo models have revealed the potential of the genus Saururus with anti-inflammatory, antitumor, anti-oxidant, hepatoprotective, antimelanogenic, lipid-lowering, and bone protective activities, supporting the rationale behind numerous of its traditional uses. Due to the noteworthy pharmacological properties, Saururus can be a better option for new drug discovery. Data regarding many aspects of this plant such as toxicology, pharmacokinetics, quality-control measures, and the clinical value of the active compounds is still limited which call for additional studies.
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Affiliation(s)
- Guangxin Liu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Zefeng Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Meilun Shen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Xue Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Jing Xie
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, 229 Taibai Road, Xi'an, Shaanxi 710069, P. R. China
| | - Xirui He
- Honghui Hospital, Xi'an Jiaotong University, 76 Nanguo Road, Xi'an, Shaanxi 710054, P. R. China
| | - Cuiqin Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
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12
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Neuroprotective Effects of Quercetin in Alzheimer's Disease. Biomolecules 2019; 10:biom10010059. [PMID: 31905923 PMCID: PMC7023116 DOI: 10.3390/biom10010059] [Citation(s) in RCA: 222] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/21/2019] [Accepted: 12/22/2019] [Indexed: 02/05/2023] Open
Abstract
Quercetin is a flavonoid with notable pharmacological effects and promising therapeutic potential. It is widely distributed among plants and found commonly in daily diets predominantly in fruits and vegetables. Neuroprotection by quercetin has been reported in several in vitro studies. It has been shown to protect neurons from oxidative damage while reducing lipid peroxidation. In addition to its antioxidant properties, it inhibits the fibril formation of amyloid-β proteins, counteracting cell lyses and inflammatory cascade pathways. In this review, we provide a synopsis of the recent literature exploring the relationship between quercetin and cognitive performance in Alzheimer's disease and its potential as a lead compound in clinical applications.
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Nho JH, Lee HJ, Jung HK, Jang JH, Lee KH, Kim AH, Sung TK, Cho HW. Effect of Saururus chinensis leaves extract on type II collagen-induced arthritis mouse model. Altern Ther Health Med 2019; 19:2. [PMID: 30606189 PMCID: PMC6318964 DOI: 10.1186/s12906-018-2418-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/19/2018] [Indexed: 12/04/2022]
Abstract
Background Saururus chinensis leaves have been used as traditional medicine in Korea for pain, intoxication, edema, and furuncle. According to previous reports, these leaves exert renoprotective, neuroprotective, and antioxidant effects by attenuating inflammatory responses. However, the beneficial effect of Saururus chinensis leaves on arthritis has not been elucidated. Thus, we evaluated the water extract of Saururus chinensis leaves (SHW) using type II collagen-induced arthritis (CIA) mice models. Methods Quantitative analysis of major components from SHW was performed by HPLC. Arthritis was induced by injection of type II collagen. Each group was orally administered SHW (100 mg/kg and 500 mg/kg). Methotrexate (MTX) was used as a positive control. Serum levels of interleukin-6, TNF-alpha, and type II collagen IgG in the animal models were measured using ELISA. Histological features were observed by H&E staining. Results Quantitative analysis of SHW showed the contents as 56.4 ± 0.52 mg/g of miquelianin, 7.75 ± 0.08 mg/g of quercetin 3-O-(2”-O-β -glucopyranosyl)-α-rhamnopyranoside, and 3.17 ± 0.02 mg/g of quercitrin. Treatment with 500 mg/kg SHW decreased the serum level of Interleukin-6 (IL-6), TNF-alpha, and collagen IgG in the CIA model. Moreover, SHW treatment diminished the swelling of hind limbs and monocyte infiltration in blood vessels in CIA animal models. The results indicate that SHW could decrease CIA-induced arthritis in vivo. Conclusions The results indicate that SHW could be used to improving arthritis by reducing inflammatory factors (IL-6 and TNF-alpha). However, further experiments are required to determine how SHW influences signal transduction in animal models. Electronic supplementary material The online version of this article (10.1186/s12906-018-2418-z) contains supplementary material, which is available to authorized users.
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Zhang M, Yang G, Zhou Y, Qian C, Mu M, Ke Y, Qian Z. Regulating ferroportin‐1 and transferrin receptor‐1 expression: A novel function of hydrogen sulfide. J Cell Physiol 2018; 234:3158-3169. [DOI: 10.1002/jcp.27431] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 08/27/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Meng‐Wan Zhang
- Laboratory of Neuropharmacology School of Pharmacy, Fudan University Shanghai China
- Laboratory of Neuropharmacology Institute of Translational & Precision Medicine, Nantong University Nantong China
| | - Guang Yang
- Laboratory of Neuropharmacology School of Pharmacy, Fudan University Shanghai China
- Laboratory of Neuropharmacology Institute of Translational & Precision Medicine, Nantong University Nantong China
| | - Yu‐Fu Zhou
- Laboratory of Neuropharmacology School of Pharmacy, Fudan University Shanghai China
- Laboratory of Neuropharmacology Institute of Translational & Precision Medicine, Nantong University Nantong China
| | - Christopher Qian
- Gerald Choa Neuroscience Centre School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong Hong Kong Hong Kong
| | - Ming‐Dao Mu
- Gerald Choa Neuroscience Centre School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong Hong Kong Hong Kong
| | - Ya Ke
- Gerald Choa Neuroscience Centre School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong Hong Kong Hong Kong
| | - Zhong‐Ming Qian
- Laboratory of Neuropharmacology School of Pharmacy, Fudan University Shanghai China
- Laboratory of Neuropharmacology Institute of Translational & Precision Medicine, Nantong University Nantong China
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Xia Y, S D, Jiang S, Fan R, Wang Y, Wang Y, Tang J, Zhang Y, He RL, Yu B, Kou J. YiQiFuMai lyophilized injection attenuates particulate matter-induced acute lung injury in mice via TLR4-mTOR-autophagy pathway. Biomed Pharmacother 2018; 108:906-913. [PMID: 30372902 DOI: 10.1016/j.biopha.2018.09.088] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/13/2018] [Accepted: 09/15/2018] [Indexed: 02/02/2023] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the serious diseases that are characterized by a severe inflammatory response of lung injuries and damage to the microvascular permeability, frequently resulting in death. YiQiFuMai (YQFM) lyophilized injection powder is a redeveloped preparation based on the well-known traditional Chinese medicine formula Sheng-Mai-San which is widely used in clinical practice in China, mainly for the treatment of microcirculatory disturbance-related diseases. However, there is little information about its role in ALI/ARDS. The aim of this study was to determine the protective effect of YQFM on particulate matter (PM)-induced ALI. The mice were intratracheally instilled with 50 mg/kg body weight of Standard Reference Material1648a (SRM1648a) in the PM-induced group. The mice in the YQFM group were given YQFM (three doses: 0.33, 0.67, and 1.34 g/kg) by tail vein injection 30 min after the intratracheal instillation of PM. The results showed that YQFM markedly reduced lung pathological injury and the lung wet/dry weight ratios induced by PM. Furthermore, we also found that YQFM significantly inhibited the PM-induced myeloperoxidase (MPO) activity in lung tissues, decreased the PM-induced inflammatory cytokines including interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), reduced nitric oxide (NO) and total protein in bronchoalveolar lavage fluids (BALF), and effectively attenuated PM-induced increases lymphocytes in BALF. In addition, YQFM increased mammalian target of rapamycin (mTOR) phosphorylation and dramatically suppressed the PM-stimulated expression of toll-like receptor 4 (TLR4), MyD88, autophagy-related protein LC3Ⅱand Beclin 1 as well as autophagy. In conclusion, these findings indicate that YQFM had a critical anti-inflammatory effect due to its ability to regulate both TLR4-MyD88 and mTOR-autophagy pathways, and might be a possible therapeutic agent for PM-induced ALI.
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Affiliation(s)
- Yuanli Xia
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Dolgor S
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Siyu Jiang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Ruiping Fan
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yumeng Wang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yuwei Wang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Jiahui Tang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yuanyuan Zhang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Rong Lucy He
- Department of Biological Sciences, Chicago State University, Chicago, IL60628, USA
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China.
| | - Junping Kou
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China.
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Lai SW, Chen JH, Lin HY, Liu YS, Tsai CF, Chang PC, Lu DY, Lin C. Regulatory Effects of Neuroinflammatory Responses Through Brain-Derived Neurotrophic Factor Signaling in Microglial Cells. Mol Neurobiol 2018; 55:7487-7499. [PMID: 29427085 DOI: 10.1007/s12035-018-0933-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 01/25/2018] [Indexed: 11/26/2022]
Abstract
Inhibition of microglial over-activation is an important strategy to counter balance neurodegenerative progression. We previously demonstrated that the adenosine monophosphate-activated protein kinase (AMPK) may be a therapeutic target in mediating anti-neuroinflammatory responses in microglia. Brain-derived neurotrophic factor (BDNF) is one of the major neurotrophic factors produced by astrocytes to maintain the development and survival of neurons in the brain, and have recently been shown to modulate homeostasis of neuroinflammation. Therefore, the present study focused on BDNF-mediated neuroinflammatory responses and may provide an endogenous regulation of neuroinflammation. Among the tested neuroinflammation, epigallocatechin gallate (EGCG) and minocycline exerted BDNF upregulation to inhibit COX-2 and proinflammatory mediator expressions. Furthermore, both EGCG and minocycline upregulated BDNF expression in microglia through AMPK signaling. In addition, minocycline and EGCG also increased expressions of erythropoietin (EPO) and sonic hedgehog (Shh). In the endogenous modulation of neuroinflammation, astrocyte-conditioned medium (AgCM) also decreased the expression of COX-2 and upregulated BDNF expression in microglia. The anti-inflammatory effects of BDNF were mediated through EPO/Shh in microglia. Our results indicated that the BDNF-EPO-Shh novel-signaling pathway underlies the regulation of inflammatory responses and may be regarded as a potential therapeutic target in neurodegenerative diseases. This study also reveals a better understanding of an endogenous crosstalk between astrocytes and microglia to regulate anti-inflammatory actions, which could provide a novel strategy for the treatment of neuroinflammation and neurodegenerative diseases.
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Affiliation(s)
- Sheng-Wei Lai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Jia-Hong Chen
- Department of General Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
- School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Hsiao-Yun Lin
- Department of Pharmacology, School of Medicine, China Medical University, No.91 Hsueh-Shih Road, Taichung, Taiwan
| | - Yu-Shu Liu
- Department of Pharmacology, School of Medicine, China Medical University, No.91 Hsueh-Shih Road, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Cheng-Fang Tsai
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Pei-Chun Chang
- Department of Bioinformatics, Asia University, Taichung, Taiwan
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, China Medical University, No.91 Hsueh-Shih Road, Taichung, Taiwan.
- Department of Photonics and Communication Engineering, Asia University, Taichung, Taiwan.
| | - Chingju Lin
- Department of Physiology, School of Medicine, China Medical University, Taichung, Taiwan.
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Li WY, Li FM, Zhou YF, Wen ZM, Ma J, Ya K, Qian ZM. Aspirin down Regulates Hepcidin by Inhibiting NF-κB and IL6/JAK2/STAT3 Pathways in BV-2 Microglial Cells Treated with Lipopolysaccharide. Int J Mol Sci 2016; 17:ijms17121921. [PMID: 27999284 PMCID: PMC5187761 DOI: 10.3390/ijms17121921] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/26/2016] [Accepted: 11/09/2016] [Indexed: 12/16/2022] Open
Abstract
Aspirin down regulates transferrin receptor 1 (TfR1) and up regulates ferroportin 1 (Fpn1) and ferritin expression in BV-2 microglial cells treated without lipopolysaccharides (LPS), as well as down regulates hepcidin and interleukin 6 (IL-6) in cells treated with LPS. However, the relevant mechanisms are unknown. Here, we investigate the effects of aspirin on expression of hepcidin and iron regulatory protein 1 (IRP1), phosphorylation of Janus kinase 2 (JAK2), signal transducer and activator of transcription 3 (STAT3) and P65 (nuclear factor-κB), and the production of nitric oxide (NO) in BV-2 microglial cells treated with and without LPS. We demonstrated that aspirin inhibited hepcidin mRNA as well as NO production in cells treated with LPS, but not in cells without LPS, suppresses IL-6, JAK2, STAT3, and P65 (nuclear factor-κB) phosphorylation and has no effect on IRP1 in cells treated with or without LPS. These findings provide evidence that aspirin down regulates hepcidin by inhibiting IL6/JAK2/STAT3 and P65 (nuclear factor-κB) pathways in the cells under inflammatory conditions, and imply that an aspirin-induced reduction in TfR1 and an increase in ferritin are not associated with IRP1 and NO.
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Affiliation(s)
- Wan-Ying Li
- Laboratory of Neuropharmacology, Fudan University School of Pharmacy, Shanghai 201203, China.
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.
| | - Fei-Mi Li
- Laboratory of Neuropharmacology, Fudan University School of Pharmacy, Shanghai 201203, China.
| | - Yu-Fu Zhou
- Laboratory of Neuropharmacology, Fudan University School of Pharmacy, Shanghai 201203, China.
| | - Zhong-Min Wen
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.
| | - Juan Ma
- Laboratory of Neuropharmacology, Fudan University School of Pharmacy, Shanghai 201203, China.
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China.
| | - Ke Ya
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China.
| | - Zhong-Ming Qian
- Laboratory of Neuropharmacology, Fudan University School of Pharmacy, Shanghai 201203, China.
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Kwon SH, Ma SX, Ko YH, Seo JY, Lee BR, Lee TH, Kim SY, Lee SY, Jang CG. Vaccinium bracteatum Thunb. Exerts Anti-Inflammatory Activity by Inhibiting NF-κB Activation in BV-2 Microglial Cells. Biomol Ther (Seoul) 2016; 24:543-51. [PMID: 27169820 PMCID: PMC5012881 DOI: 10.4062/biomolther.2015.205] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/03/2016] [Accepted: 03/08/2016] [Indexed: 11/20/2022] Open
Abstract
This study was designed to evaluate the pharmacological effects of Vaccinium bracteatum Thunb. methanol extract (VBME) on microglial activation and to identify the underlying mechanisms of action of these effects. The anti-inflammatory properties of VBME were studied using lipopolysaccharide (LPS)-stimulated BV-2 microglial cells. We measured the production of nitric oxide (NO), inducible NO synthase (iNOS), cyclooxygenase (COX)-2, prostaglandin E2 (PGE2), tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and interleukin-6 (IL-6) as inflammatory parameters. We also examined the effect of VBME on intracellular reactive oxygen species (ROS) production and the activity of nuclear factor-kappa B p65 (NF-κB p65). VBME significantly inhibited LPS-induced production of NO and PGE2 and LPS-mediated upregulation of iNOS and COX-2 expression in a dose-dependent manner; importantly, VBME was not cytotoxic. VBME also significantly reduced the generation of the pro-inflammatory cytokines TNF-α, IL-1β, and IL-6. In addition, VBME significantly dampened intracellular ROS production and suppressed NF-κB p65 translocation by blocking IκB-α phosphorylation and degradation in LPS-stimulated BV2 cells. Our findings indicate that VBME inhibits the production of inflammatory mediators in BV-2 microglial cells by suppressing NF-κB signaling. Thus, VBME may be useful in the treatment of neurodegenerative diseases due to its ability to inhibit inflammatory mediator production in activated BV-2 microglial cells.
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Affiliation(s)
- Seung-Hwan Kwon
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Shi-Xun Ma
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yong-Hyun Ko
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jee-Yeon Seo
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Bo-Ram Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Taek Hwan Lee
- College of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, Incheon 21936, Republic of Korea
| | - Seok-Yong Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Choon-Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Supriady H, Kamarudin MNA, Chan CK, Goh BH, Kadir HA. SMEAF attenuates the production of pro-inflammatory mediators through the inactivation of Akt-dependent NF-κB, p38 and ERK1/2 pathways in LPS-stimulated BV-2 microglial cells. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.05.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Cho KJ, Song J, Oh Y, Lee JE. MicroRNA-Let-7a regulates the function of microglia in inflammation. Mol Cell Neurosci 2015. [PMID: 26221772 DOI: 10.1016/j.mcn.2015.07.004] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Microglia have multiple functions in cerebrovascular and neurodegenerative diseases. Regulation of microglial function during inflammatory stress is important for treatment of central nervous system (CNS) diseases because microglia secrete various substances that affect neurons and glia. MicroRNA-Let-7a (miR-Let-7a) is a tumor suppressor miRNA that has been reported to target transcripts that encode proteins involved in apoptosis. In the present study, we examined the essential role of miR-Let-7a in inflammatory stress by over-expressing miR-Let-7a to investigate its role in determining the BV2 microglial phenotype, a cell line often used as a model of activated microglia. We found that inflammatory factors and Reactive Oxygen Species (ROS) production levels were altered according to miR-Let-7a expression level as measured by Western blot analysis, reverse transcription PCR, quantitative real time PCR, the measurement of nitrite (indicative of the nitric oxide (NO) pathway), and immunocytochemistry (ICC). Our results suggest that miR-Let-7a is involved in the function of microglia in the setting of inflammatory injury. In response to inflammation, miR-Let-7a participates in the reduction of nitrite production and the expression of inducible nitric oxide synthase (iNOS), interleukin (IL)-6 and is involved in increased expression of brain derived neurotrophic factor (BDNF), interleukin (IL)-10, and IL-4 in microglia. Thus, miRNA-Let-7a could act as a regulator of the function of microglia in inflammation.
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Affiliation(s)
- Kyoung Joo Cho
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea; BK21 Plus Project for Medical Sciences, and Brain Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Juhyun Song
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea
| | - Yumi Oh
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea; BK21 Plus Project for Medical Sciences, and Brain Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea; BK21 Plus Project for Medical Sciences, and Brain Research Institute, Yonsei University College of Medicine, Seoul, South Korea.
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Lin C, Lin HY, Chen JH, Tseng WP, Ko PY, Liu YS, Yeh WL, Lu DY. Effects of paeonol on anti-neuroinflammatory responses in microglial cells. Int J Mol Sci 2015; 16:8844-60. [PMID: 25906473 PMCID: PMC4425112 DOI: 10.3390/ijms16048844] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/07/2015] [Accepted: 04/14/2015] [Indexed: 12/17/2022] Open
Abstract
Increasing studies suggest that inflammatory processes in the central nervous system mediated by microglial activation plays an important role in numerous neurodegenerative diseases. Development of planning for microglial suppression is considered a key strategy in the search for neuroprotection. Paeonol is a major phenolic component of Moutan Cortex, widely used as a nutrient supplement in Chinese medicine. In this study, we investigated the effects of paeonol on microglial cells stimulated by inflammagens. Paeonol significantly inhibited the release of nitric oxide (NO) and the expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). Treatment with paeonol also reduced reactive oxygen species (ROS) production and inhibited an ATP-induced increased cell migratory activity. Furthermore, the inhibitory effects of neuroinflammation by paeonol were found to be regulated by phosphorylated adenosine monophosphate-activated protein kinase-α (AMPK-α) and glycogen synthase kinase 3 α/β (GSK 3α/β). Treatment with AMPK or GSK3 inhibitors reverse the inhibitory effect of neuroinflammation by paeonol in microglial cells. Furthermore, paeonol treatment also showed significant improvement in the rotarod performance and microglial activation in the mouse model as well. The present study is the first to report a novel inhibitory role of paeonol on neuroinflammation, and presents a new candidate agent for the development of therapies for inflammation-related neurodegenerative diseases.
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Affiliation(s)
- Chingju Lin
- Department of Physiology, School of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Hsiao-Yun Lin
- Graduate Institute of Neural and Cognitive Sciences, China Medical University, Taichung 40402, Taiwan.
| | - Jia-Hong Chen
- Department of General Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 42743, Taiwan.
| | - Wen-Pei Tseng
- Graduate Institute of Sports and Health, National Changhua University of Education, Changhua 500, Taiwan.
| | - Pei-Ying Ko
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 40402, Taiwan.
| | - Yu-Shu Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Wei-Lan Yeh
- Department of Cell and Tissue Engineering, Changhua Christian Hospital, Changhua 500, Taiwan.
| | - Dah-Yuu Lu
- Graduate Institute of Neural and Cognitive Sciences, China Medical University, Taichung 40402, Taiwan.
- Department of Photonics and Communication Engineering, Asia University, Taichung 40402, Taiwan.
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