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Chen YC, Chen JH, Tsai CF, Wu CY, Chang CN, Wu CT, Yeh WL. Protective effects of paeonol against cognitive impairment in lung diseases. J Pharmacol Sci 2024; 155:101-112. [PMID: 38797534 DOI: 10.1016/j.jphs.2024.04.006] [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: 02/16/2024] [Revised: 04/14/2024] [Accepted: 04/30/2024] [Indexed: 05/29/2024] Open
Abstract
Pulmonary inflammation may lead to neuroinflammation resulting in neurological dysfunction, and it is associated with a variety of acute and chronic lung diseases. Paeonol is a herbal phenolic compound with anti-inflammatory and anti-oxidative properties. The aim of this study is to understand the beneficial effects of paeonol on cognitive impairment, pulmonary inflammation and its underlying mechanisms. Pulmonary inflammation-associated cognitive deficit was observed in TNFα-stimulated mice, and paeonol mitigated the cognitive impairment by reducing the expressions of interleukin (IL)-1β, IL-6, and NOD-like receptor family pyrin domain-containing 3 (NLRP3) in hippocampus. Moreover, elevated plasma miR-34c-5p in lung-inflamed mice was also reduced by paeonol. Pulmonary inflammation induced by intratracheal instillation of TNFα in mice resulted in immune cells infiltration in bronchoalveolar lavage fluid, pulmonary edema, and acute fibrosis, and these inflammatory responses were alleviated by paeonol orally. In MH-S alveolar macrophages, tumor necrosis factor (TNF) α- and phorbol myristate acetate (PMA)-induced inflammasome activation was ameliorated by paeonol. In addition, the expressions of antioxidants were elevated by paeonol, and reactive oxygen species production was reduced. In this study, paeonol demonstrates protective effects against cognitive deficits and pulmonary inflammation by exerting anti-inflammatory and anti-oxidative properties, suggesting a powerful benefit as a potential therapeutic agent.
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Affiliation(s)
- Yen-Chang Chen
- Institute of New Drug Development, China Medical University, No.91 Hsueh-Shih Road, Taichung, 404333, Taiwan
| | - Jia-Hong Chen
- Department of General Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 88, Sec. 1, Fengxing Road, Taichung, 427213, Taiwan
| | - Cheng-Fang Tsai
- Department of Medical Laboratory Science and Biotechnology, Asia University, No.500 Lioufeng Road, Taichung, 413305, Taiwan
| | - Chen-Yun Wu
- Institute of New Drug Development, China Medical University, No.91 Hsueh-Shih Road, Taichung, 404333, Taiwan
| | - Chen-Ni Chang
- Institute of New Drug Development, China Medical University, No.91 Hsueh-Shih Road, Taichung, 404333, Taiwan
| | - Chen-Teng Wu
- Department of Surgery, China Medical University Hospital, No. 2, Yude Road, Taichung, 404332, Taiwan
| | - Wei-Lan Yeh
- Institute of New Drug Development, China Medical University, No.91 Hsueh-Shih Road, Taichung, 404333, Taiwan; Department of Biochemistry, School of Medicine, China Medical University, No.91 Hsueh-Shih Road, Taichung, 404333, Taiwan.
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Wu R, Liu Y, Zhang F, Dai S, Xue X, Peng C, Li Y, Li Y. Protective mechanism of Paeonol on central nervous system. Phytother Res 2024; 38:470-488. [PMID: 37872838 DOI: 10.1002/ptr.8049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/21/2023] [Accepted: 10/07/2023] [Indexed: 10/25/2023]
Abstract
Cerebrovascular diseases involve neuronal damage, resulting in degenerative neuropathy and posing a serious threat to human health. The discovery of effective drug components from natural plants and the study of their mechanism are a research idea different from chemical synthetic medicines. Paeonol is the main active component of traditional Chinese medicine Paeonia lactiflora Pall. It widely exists in many medicinal plants and has pharmacological effects such as anti-atherosclerosis, antiplatelet aggregation, anti-oxidation, and anti-inflammatory, which keeps generally used in the treatment of cardiovascular and cerebrovascular diseases. Based on the therapeutic effects of Paeonol for cardiovascular and cerebrovascular diseases, this article reviewed the pharmacological effects of Paeonol in Alzheimer's disease, Parkinson's disease, stroke, epilepsy, diabetes encephalopathy, and other neurological diseases, providing a reference for the research of the mechanism of Paeonol in central nervous system diseases.
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Affiliation(s)
- Rui Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanfang Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shu Dai
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinyan Xue
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Li J, Han Q, Zhang L, Zhang J, Zhong Y. Efficacy of a toothpaste containing paeonol, potassium nitrate, and strontium chloride on dentine hypersensitivity: A double-blind randomized controlled trial in Chinese adults. Heliyon 2023; 9:e14634. [PMID: 37025919 PMCID: PMC10070521 DOI: 10.1016/j.heliyon.2023.e14634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Objective The purpose of this randomized controlled trial was to compare the efficacy of a toothpaste containing paeonol, potassium nitrate, and strontium chloride with control toothpaste on dentine hypersensitivity (DH). Methods DH patients who had at least two sensitive teeth and did not use desensitization toothpaste in the past 3 months were randomly allocated to either test or control group. The toothpaste containing paeonol, potassium nitrate, and strontium chloride was used in the test group, while the placebo toothpaste used in control group. The outcome measures included Yeaple probe score and Schiff Index score at 4 and 8 weeks. The patients, personnel and assessors were blinded to the allocation. The differences in Yeaple probe score and Schiff Index score between groups were analyzed with ANOVA. Results 91 eligible subjects were randomized. 88 of them completed 8-week follow-up and were analyzed (45 in the test group and 43 in the control group). In both groups, the Yeaple probe score showed an upward trend, while the Schiff sensitivity score showed a downward trend. At week 8, the Yeaple probe score had increased by 30.22 g in the test group, and the Schiff Index score had decreased by 0.89. Compared with the control group, the Yeaple probe score in the test group increased by 286.85% from baseline, and the Schiff Index score decreased by 42.96%, showing a statistically significant difference. Five cases of adverse events were observed. Conclusion The toothpaste containing paeonol, potassium nitrate, and strontium chloride was effective against DH. Clinical significance This combination of paeonol, potassium nitrate and strontium chloride could be a novel functional ingredient choice for anti-hypersensitivity products in future. Registration The trial was registered in the Chinese Clinical Trial Registry (ChiCTR2000041417).
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Affiliation(s)
- Jia Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & State Institute of Medical Device Clinical Trial, West China Hospital of Stomatology, Sichuan University, 14#, 3rd Section, Renmin South Road, Chengdu, 610041, Sichuan, China
| | - Qi Han
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & State Institute of Medical Device Clinical Trial, West China Hospital of Stomatology, Sichuan University, 14#, 3rd Section, Renmin South Road, Chengdu, 610041, Sichuan, China
| | - Li Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research, Center for Oral Diseases & Department of General Dentistry Ⅱ, West China Hospital of Stomatology, Sichuan University, 14#, 3rd Section, Renmin South Road, Chengdu, 610041, Sichuan, China
| | - Jing Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research, Center for Oral Diseases & Department of General Dentistry Ⅱ, West China Hospital of Stomatology, Sichuan University, 14#, 3rd Section, Renmin South Road, Chengdu, 610041, Sichuan, China
| | - Yisi Zhong
- State Key Laboratory of Oral Diseases & National Clinical Research, Center for Oral Diseases & Department of General Dentistry Ⅱ, West China Hospital of Stomatology, Sichuan University, 14#, 3rd Section, Renmin South Road, Chengdu, 610041, Sichuan, China
- Corresponding author.
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Role of Zerumbone, a Phytochemical Sesquiterpenoid from Zingiber zerumbet Smith, in Maintaining Macrophage Polarization and Redox Homeostasis. Nutrients 2022; 14:nu14245402. [PMID: 36558562 PMCID: PMC9783216 DOI: 10.3390/nu14245402] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Macrophages and microglia are highly versatile cells that can be polarized into M1 and M2 phenotypes in response to diverse environmental stimuli, thus exhibiting different biological functions. In the central nervous system, activated resident macrophages and microglial cells trigger the production of proinflammatory mediators that contribute to neurodegenerative diseases and psychiatric disorders. Therefore, modulating the activation of macrophages and microglia by optimizing the inflammatory environment is beneficial for disease management. Several naturally occurring compounds have been reported to have anti-inflammatory and neuroprotective properties. Zerumbone is a phytochemical sesquiterpenoid and also a cyclic ketone isolated from Zingiber zerumbet Smith. In this study, we found that zerumbone effectively reduced the expression of lipocalin-2 in macrophages and microglial cell lines. Lipocalin-2, also known as neutrophil gelatinase-associated lipocalin (NGAL), has been characterized as an adipokine/cytokine implicated in inflammation. Moreover, supplement with zerumbone inhibited reactive oxygen species production. Phagocytic activity was decreased following the zerumbone supplement. In addition, the zerumbone supplement remarkably reduced the production of M1-polarization-associated chemokines CXC10 and CCL-2, as well as M1-polarization-associated cytokines interleukin (IL)-6, IL-1β, and tumor necrosis factor-α. Furthermore, the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 and the production of NO were attenuated in macrophages and microglial cells supplemented with zerumbone. Notably, we discovered that zerumbone effectively promoted the production of the endogenous antioxidants heme oxygenase-1, glutamate-cysteine ligase modifier subunit, glutamate-cysteine ligase catalytic subunit, and NAD(P)H quinone oxidoreductase-1 and remarkably enhanced IL-10, a marker of M2 macrophage polarization. Endogenous antioxidant production and M2 macrophage polarization were increased through activation of the AMPK/Akt and Akt/GSK3 signaling pathways. In summary, this study demonstrated the protective role of zerumbone in maintaining M1 and M2 polarization homeostasis by decreasing inflammatory responses and enhancing the production of endogenous antioxidants in both macrophages and microglia cells. This study suggests that zerumbone can be used as a potential therapeutic drug for the supplement of neuroinflammatory diseases.
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Ekiert H, Klimek-Szczykutowicz M, Szopa A. Paeonia × suffruticosa (Moutan Peony)-A Review of the Chemical Composition, Traditional and Professional Use in Medicine, Position in Cosmetics Industries, and Biotechnological Studies. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11233379. [PMID: 36501418 PMCID: PMC9739549 DOI: 10.3390/plants11233379] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 05/14/2023]
Abstract
The aim of this review is to perform a systematic review of scientific papers and an in-depth analysis of the latest research related to Paeonia × suffruticosa Andrews as a valuable plant species, important in pharmacy and cosmetology. P. × suffruticosa bark root-Moutan cortex is a medicinal raw material formerly known from traditional Chinese medicine (TCM) but less common in official European medicine. It was introduced for the first time in the European Pharmacopoeia Supplement 9.4 in 2018. In this work, the numerous possible applications of this raw material were depicted based on modern professional pharmacological studies documenting its very valuable medicinal values, including antioxidant, cytoprotective, anti-cancer, anti-inflammatory, cardioprotective, anti-atherosclerotic, anti-diabetic and hepatoprotective activities. The scientific studies indicated that the profile of raw material activity is mainly due to paeonol, paeoniflorin and 1,2,3,4,6-penta-O-galloyl-β-D-glucopyranose. Moreover, the significance of this plant (its different organs) in the production of cosmetics was underlined. P. × suffruticosa finds increasing application in cosmetology due to research on its chronic dermatitis, anti-aging and brightening effects. Furthermore, some biotechnological research has been described aimed at developing effective in vitro micropropagation protocols for P. × suffruticosa.
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Affiliation(s)
- Halina Ekiert
- Chair and Department of Pharmaceutical Botany, Faculty of Pharmacy, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Marta Klimek-Szczykutowicz
- Department of Dermatology, Cosmetology and Aesthetic Surgery, The Institute of Medical Sciences, Medical College, Jan Kochanowski University, al. IX Wieków Kielc 19a, 25-516 Kielce, Poland
- Correspondence: (M.K.-S.); (A.S.); Tel.: +48-12-620-54-36 (A.S.); Fax: +48-620-54-40 (A.S.)
| | - Agnieszka Szopa
- Chair and Department of Pharmaceutical Botany, Faculty of Pharmacy, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
- Correspondence: (M.K.-S.); (A.S.); Tel.: +48-12-620-54-36 (A.S.); Fax: +48-620-54-40 (A.S.)
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Antioxidant and Neuroprotective Effects of Paeonol against Oxidative Stress and Altered Carrier-Mediated Transport System on NSC-34 Cell Lines. Antioxidants (Basel) 2022; 11:antiox11071392. [PMID: 35883881 PMCID: PMC9311606 DOI: 10.3390/antiox11071392] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 02/05/2023] Open
Abstract
Paeonol is a naturally occurring phenolic agent that attenuates neurotoxicity in neurodegenerative diseases. We aimed to investigate the antioxidant and protective effects of paeonol and determine its transport mechanism in wild-type (WT; NSC-34/hSOD1WT) and mutant-type (MT; NSC-34/hSOD1G93A) motor neuron-like amyotrophic lateral sclerosis (ALS) cell lines. Cytotoxicity induced by glutamate, lipopolysaccharides, and H2O2 reduced viability of cell; however, the addition of paeonol improved cell viability against neurotoxicity. The [3H]paeonol uptake was increased in the presence of H2O2 in both cell lines. Paeonol recovered ALS model cell lines by reducing mitochondrial oxidative stress induced by glutamate. The transport of paeonol was time-, concentration-, and pH-dependent in both NSC-34 cell lines. Kinetic parameters showed two transport sites with altered affinity and capacity in the MT cell line compared to the WT cell line. [3H]Paeonol uptake increased in the MT cell line transfected with organic anion transporter1 (Oat1)/Slc22a6 small interfering RNA compared to that in the control. Plasma membrane monoamine transporter (Pmat) was also involved in the uptake of paeonol by ALS model cell lines. Overall, paeonol exhibits neuroprotective activity via a carrier-mediated transport system and may be a beneficial therapy for preventing motor neuronal damage under ALS-like conditions.
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Tsai CF, Chen GW, Chen YC, Shen CK, Lu DY, Yang LY, Chen JH, Yeh WL. Regulatory Effects of Quercetin on M1/M2 Macrophage Polarization and Oxidative/Antioxidative Balance. Nutrients 2021; 14:nu14010067. [PMID: 35010945 PMCID: PMC8746507 DOI: 10.3390/nu14010067] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 12/23/2022] Open
Abstract
Macrophage polarization plays essential and diverse roles in most diseases, such as atherosclerosis, adipose tissue inflammation, and insulin resistance. Homeostasis dysfunction in M1/M2 macrophage polarization causes pathological conditions and inflammation. Neuroinflammation is characterized by microglial activation and the concomitant production of pro-inflammatory cytokines, leading to numerous neurodegenerative diseases and psychiatric disorders. Decreased neuroinflammation can be obtained by using natural compounds, including flavonoids, which are known to ameliorate inflammatory responses. Among flavonoids, quercetin possesses multiple pharmacological applications and regulates several biological activities. In the present study, we found that quercetin effectively inhibited the expression of lipocalin-2 in both macrophages and microglial cells stimulated by lipopolysaccharides (LPS). The production of nitric oxide (NO) and expression levels of the pro-inflammatory cytokines, inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2, were also attenuated by quercetin treatment. Our results also showed that quercetin significantly reduced the expression levels of the M1 markers, such as interleukin (IL)-6, tumor necrosis factor (TNF)-α, and IL-1β, in the macrophages and microglia. The M1 polarization-associated chemokines, C–C motif chemokine ligand (CCL)-2 and C-X-C motif chemokine ligand (CXCL)-10, were also effectively reduced by the quercetin treatment. In addition, quercetin markedly reduced the production of various reactive oxygen species (ROS) in the microglia. The microglial phagocytic ability induced by the LPS was also effectively reduced by the quercetin treatment. Importantly, the quercetin increased the expression levels of the M2 marker, IL-10, and the endogenous antioxidants, heme oxygenase (HO)-1, glutamate-cysteine ligase catalytic subunit (GCLC), glutamate-cysteine ligase modifier subunit (GCLM), and NAD(P)H quinone oxidoreductase-1 (NQO1). The enhancement of the M2 markers and endogenous antioxidants by quercetin was activated by the AMP-activated protein kinase (AMPK) and Akt signaling pathways. Together, our study reported that the quercetin inhibited the effects of M1 polarization, including neuroinflammatory responses, ROS production, and phagocytosis. Moreover, the quercetin enhanced the M2 macrophage polarization and endogenous antioxidant expression in both macrophages and microglia. Our findings provide valuable information that quercetin may act as a potential drug for the treatment of diseases related to inflammatory disorders in the central nervous system.
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Affiliation(s)
- Cheng-Fang Tsai
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung 413305, Taiwan
- Correspondence: (C.-F.T.); (W.-L.Y.)
| | - Guan-Wei Chen
- Institute of New Drug Development, China Medical University, Taichung 404328, Taiwan; (G.-W.C.); (Y.-C.C.)
| | - Yen-Chang Chen
- Institute of New Drug Development, China Medical University, Taichung 404328, Taiwan; (G.-W.C.); (Y.-C.C.)
| | - Ching-Kai Shen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404328, Taiwan;
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, College of Medicine, China Medical University, Taichung 404328, Taiwan;
- Department of Photonics and Communication Engineering, Asia University, Taichung 413305, Taiwan
| | - Liang-Yo Yang
- Department of Physiology, School of Medicine, China Medical University, Taichung 404328, Taiwan;
- Laboratory for Neural Repair, China Medical University Hospital, Taichung 404327, Taiwan
- Biomedical Technology R&D Center, China Medical University Hospital, Taichung 404327, Taiwan
| | - Jia-Hong Chen
- Department of General Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427213, Taiwan;
| | - Wei-Lan Yeh
- Department of Biochemistry, School of Medicine, China Medical University, Taichung 404328, Taiwan
- Department of Biological Science and Technology, China Medical University, Taichung 404328, Taiwan
- Correspondence: (C.-F.T.); (W.-L.Y.)
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Lin C, Lai SW, Shen CK, Chen CW, Tsai CF, Liu YS, Lu DY, Huang BR. Fenofibrate inhibits hypoxia-inducible factor-1 alpha and carbonic anhydrase expression through activation of AMP-activated protein kinase/HO-1/Sirt1 pathway in glioblastoma cells. ENVIRONMENTAL TOXICOLOGY 2021; 36:2551-2561. [PMID: 34520103 DOI: 10.1002/tox.23369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
Cancer and its associated conditions have significant impacts on public health at many levels worldwide, and cancer is the leading cause of death among adults. Peroxisome proliferator-activated receptor α (PPARα)-specific agonists, fibrates, have been approved by the Food and Drug Administration for managing hyperlipidemia. PPARα-specific agonists exert anti-cancer effects in many human cancer types, including glioblastoma (GBM). Recently, we have reported that the hypoxic state in GBM stabilizes hypoxia-inducible factor-1 alpha (HIF-1α), thus contributing to tumor escape from immune surveillance by activating the expression of the pH-regulating protein carbonic anhydrase IX (CA9). In this study, we aimed to study the regulatory effects of the PPARα agonist fibrate on the regulation of HIF-1α expression and its downstream target protein in GBM. Our findings showed that fenofibrate is the high potency compound among the various fibrates that inhibit hypoxia-induced HIF-1α and CA9 expression in GBM. Moreover, fenofibrate-inhibited HIF-1α expression is mediated by HO-1 activation in GBM cells through the AMP-activated protein kinase (AMPK) pathway. In addition, fenofibrate-enhanced HO-1 upregulation activates SIRT1 and leads to subsequent accumulation of SIRT1 in the nucleus, which further promotes HIF-1α deacetylation and inhibits CA9 expression. Using a protein synthesis inhibitor, cycloheximide, we also observed that fenofibrate inhibited HIF-1α protein synthesis. In addition, the administration of the proteasome inhibitor MG132 showed that fenofibrate promoted HIF-1α protein degradation in GBM. Hence, our results indicate that fenofibrate is a useful anti-GBM agent that modulates hypoxia-induced HIF-1α expression through multiple cellular pathways.
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Affiliation(s)
- Chingju Lin
- Department of Physiology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Sheng-Wei Lai
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Ching-Kai Shen
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
| | - Chao-Wei Chen
- Institute of New Drug Development, China Medical University, Taichung, Taiwan
| | - Cheng-Fang Tsai
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Yu-Shu Liu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Photonics and Communication Engineering, Asia University, Taichung, Taiwan
| | - Bor-Ren Huang
- Department of Neurosurgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
- School of Medicine, Tzu Chi University, Hualien, Taiwan
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Tayanloo-Beik A, Kiasalari Z, Roghani M. Paeonol Ameliorates Cognitive Deficits in Streptozotocin Murine Model of Sporadic Alzheimer's Disease via Attenuation of Oxidative Stress, Inflammation, and Mitochondrial Dysfunction. J Mol Neurosci 2021; 72:336-348. [PMID: 34797511 DOI: 10.1007/s12031-021-01936-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/20/2021] [Indexed: 11/25/2022]
Abstract
Intracerebroventricular (ICV) microinjection of diabetogenic drug streptozotocin (STZ) in rodents consistently produces a model of sporadic Alzheimer's disease (sAD) which is characterized by tau pathology and concomitant cognitive decline, insulin resistance, neuroinflammation, oxidative stress, and mitochondrial malfunction. Paeonol is an active phenolic component in some medicinal plants like Cortex Moutan with neuroprotective efficacy via exerting anti-inflammatory and anti-oxidative effects. This study was conducted to assess beneficial effect of paeonol in amelioration of cognitive deficits in ICV STZ rat model of sAD. STZ (3 mg/kg) was microinjected into the lateral ventricles on days 0 and 2, and paeonol was given p.o. at two doses of 25 (low) or 100 (high) mg/kg from day 0 (post-surgery) till day 24 post-STZ. Cognitive performance was evaluated in different tasks, and oxidative stress- and inflammation-related parameters were measured in addition to immunohistochemical assessment of glial fibrillary acidic protein (GFAP) as a marker of astrocytes. Paeonol at the higher dose ameliorated cognitive deficits in Barnes maze, novel object recognition (NOR) task, Y maze, and passive avoidance test. In addition, paeonol partially reversed hippocampal malondialdehyde (MDA), reactive oxygen species (ROS), total antioxidant capacity (TAC), superoxide dismutase (SOD), catalase, glutathione reductase, tumor necrosis factor α (TNFα), interleukin 6 (IL-6), mitochondrial membrane potential (MMP), myeloperoxidase (MPO), and acetylcholinesterase (AChE) activity. Paeonol treatment was also associated with lower hippocampal immunoreactivity for GFAP. This study showed that paeonol can alleviate cognitive disturbances in ICV STZ rat model of sAD via ameliorating neuroinflammation, oxidative stress, mitochondrial dysfunction, and also through its attenuation of astrogliosis.
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Affiliation(s)
- Akram Tayanloo-Beik
- Department of Biology, School of Basic Sciences, Shahed University, Tehran, Iran
| | - Zahra Kiasalari
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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Charoensaensuk V, Chen YC, Lin YH, Ou KL, Yang LY, Lu DY. Porphyromonas gingivalis Induces Proinflammatory Cytokine Expression Leading to Apoptotic Death through the Oxidative Stress/NF-κB Pathway in Brain Endothelial Cells. Cells 2021; 10:3033. [PMID: 34831265 PMCID: PMC8616253 DOI: 10.3390/cells10113033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022] Open
Abstract
Porphyromonas gingivalis, a periodontal pathogen, has been proposed to cause blood vessel injury leading to cerebrovascular diseases such as stroke. Brain endothelial cells compose the blood-brain barrier that protects homeostasis of the central nervous system. However, whether P. gingivalis causes the death of endothelial cells and the underlying mechanisms remain unclear. This study aimed to investigate the impact and regulatory mechanisms of P. gingivalis infection in brain endothelial cells. We used bEnd.3 cells and primary mouse endothelial cells to assess the effects of P. gingivalis on endothelial cells. Our results showed that infection with live P. gingivalis, unlike heat-killed P. gingivalis, triggers brain endothelial cell death by inducing cell apoptosis. Moreover, P. gingivalis infection increased intracellular reactive oxygen species (ROS) production, activated NF-κB, and up-regulated the expression of IL-1β and TNF-α. Furthermore, N-acetyl-L-cysteine (NAC), a most frequently used antioxidant, treatment significantly reduced P. gingivalis-induced cell apoptosis and brain endothelial cell death. The enhancement of ROS production, NF-κB p65 activation, and proinflammatory cytokine expression was also attenuated by NAC treatment. The impact of P. gingivalis on brain endothelial cells was also confirmed using adult primary mouse brain endothelial cells (MBECs). In summary, our results showed that P. gingivalis up-regulates IL-1β and TNF-α protein expression, which consequently causes cell death of brain endothelial cells through the ROS/NF-κB pathway. Our results, together with the results of previous case-control studies and epidemiologic reports, strongly support the hypothesis that periodontal infection increases the risk of developing cerebrovascular disease.
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Affiliation(s)
- Vichuda Charoensaensuk
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (V.C.); (Y.-H.L.)
| | - Yen-Chou Chen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
| | - Yun-Ho Lin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan; (V.C.); (Y.-H.L.)
| | - Keng-Liang Ou
- 3D Global Biotech Inc., New Taipei City 22175, Taiwan;
| | - Liang-Yo Yang
- Department of Physiology, School of Medicine, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Laboratory for Neural Repair, China Medical University Hospital, Taichung 40447, Taiwan
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Department of Photonics and Communication Engineering, Asia University, Taichung 41354, Taiwan
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11
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Weng G, Duan Y, Zhong Y, Song B, Zheng J, Zhang S, Yin Y, Deng J. Plant Extracts in Obesity: A Role of Gut Microbiota. Front Nutr 2021; 8:727951. [PMID: 34631766 PMCID: PMC8495072 DOI: 10.3389/fnut.2021.727951] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity has become one of the most serious chronic diseases threatening human health. Its occurrence and development are closely associated with gut microbiota since the disorders of gut microbiota can promote endotoxin production and induce inflammatory response. Recently, numerous plant extracts have been proven to mitigate lipid dysmetabolism and obesity syndrome by regulating the abundance and composition of gut microbiota. In this review, we summarize the potential roles of different plant extracts including mulberry leaf extract, policosanol, cortex moutan, green tea, honokiol, and capsaicin in regulating obesity via gut microbiota. Based on the current findings, plant extracts may be promising agents for the prevention and treatment of obesity and its related metabolic diseases, and the mechanisms might be associated with gut microbiota.
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Affiliation(s)
- Guangying Weng
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China.,CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yehui Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yinzhao Zhong
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Bo Song
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zheng
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Shiyu Zhang
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China.,CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Jinping Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China
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12
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Miao J, Zhong J, Lan J, Ye S, Ye P, Li S, You A, Chen X, Liu X, Li H. Paeonol attenuates inflammation by confining HMGB1 to the nucleus. J Cell Mol Med 2021; 25:2885-2899. [PMID: 33534963 PMCID: PMC7957162 DOI: 10.1111/jcmm.16319] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/22/2020] [Accepted: 01/09/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammation is a biological process that exists in a large number of diseases. If the magnitude or duration of inflammation becomes uncontrolled, inflammation may cause pathological damage to the host. HMGB1 and NF-κB have been shown to play pivotal roles in inflammation-related diseases. New drugs aimed at inhibiting HMGB1 expression have become a key research focus. In the present study, we showed that paeonol (Pae), the main active component of Paeonia suffruticosa, decreases the expression of inflammatory cytokines and inhibits the translocation of HMGB1 induced by lipopolysaccharide (LPS). By constructing HMGB1-overexpressing (HMGB1+ ) and HMGB1-mutant (HMGB1m ) RAW264.7 cells, we found that the nuclear HMGB1 could induce an LPS-tolerant state in RAW264.7 cells and that paeonol had no influence on the expression of inflammatory cytokines in HMGB1m RAW264.7 cells. In addition, the anti-inflammatory property of paeonol was lost in HMGB1 conditional knockout mice, indicating that HMGB1 is a target of paeonol and a mediator through which paeonol exerts its anti-inflammatory function. Additionally, we also found that HMGB1 and P50 competitively bound with P65, thus inactivating the NF-κB pathway. Our research confirmed the anti-inflammation property of paeonol and suggests that inhibiting the translocation of HMGB1 could be a new strategy for treating inflammation.
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Affiliation(s)
- Jifei Miao
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.,Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Jun Zhong
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Jiao Lan
- Shenzhen Bao'an Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Sen Ye
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Peng Ye
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Siyan Li
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Aijia You
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xianjie Chen
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Xiaoyi Liu
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
| | - Hui Li
- Research Center of Integrative Medicine, School Basic Medical Sciences, University of Chinese Medicine, Guangzhou, China
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13
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Wang Z, He C, Shi JS. Natural Products for the Treatment of Neurodegenerative Diseases. Curr Med Chem 2020; 27:5790-5828. [PMID: 31131744 DOI: 10.2174/0929867326666190527120614] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/06/2019] [Accepted: 05/09/2019] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases are a heterogeneous group of disorders characterized by the progressive degeneration of the structure and function of the central nervous system or peripheral nervous system. Alzheimer's Disease (AD), Parkinson's Disease (PD) and Spinal Cord Injury (SCI) are the common neurodegenerative diseases, which typically occur in people over the age of 60. With the rapid development of an aged society, over 60 million people worldwide are suffering from these uncurable diseases. Therefore, the search for new drugs and therapeutic methods has become an increasingly important research topic. Natural products especially those from the Traditional Chinese Medicines (TCMs), are the most important sources of drugs, and have received extensive interest among pharmacist. In this review, in order to facilitate further chemical modification of those useful natural products by pharmacists, we will bring together recent studies in single natural compound from TCMs with neuroprotective effect.
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Affiliation(s)
- Ze Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China.,Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563003, P.R. China
| | - Chunyang He
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China.,Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563003, P.R. China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China
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14
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Liu W, Yin DX, Zhang T, Hou XG, Qiao Q, Song P. Major Fatty Acid Compositions and Antioxidant Activity of Cultivated Paeonia ostii under Different Nitrogen Fertilizer Application. Chem Biodivers 2020; 17:e2000617. [PMID: 33078532 DOI: 10.1002/cbdv.202000617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/19/2020] [Indexed: 12/14/2022]
Abstract
Paeonia ostii is now being extensively planted for oil extraction in China, which is recognized as a single oil-use tree peony cultivar and commonly called 'Fengdan'. This study investigated the effects of nitrogen fertilizer on oil yield, fatty acid compositions and antioxidant activity of P. ostii. Oil yield (33.46 %), oleic acid (25.12 %), linoleic acid (29.21 %) and α-linolenic acid (43.12 %) reached the maximum at N450 treatment, with significant differences compared with other treatments (P<0.05). Furthermore, strong antioxidant activity with low DPPHIC50 value (19.43±1.91 μg mL-1 ) and large ABTS value (1216.53±30.21 μmol Trolox g-1 ) and FRAP value (473.57±9.11 μmol Trolox g-1 ) was also observed at N450. Palmitic acid (5.57 %) and stearic acid (2.02 %) reached a maximum at N375, but not significant with N450 (P<0.05). Nitrogen fertilizer could promote oil yield, fatty acid accumulation and antioxidant activity, and N450 (450 kg ha-1 ) is recommended as the optimum application for P. ostii.
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Affiliation(s)
- Wei Liu
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R. China
| | - Dong-Xue Yin
- College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang, 471003, P. R. China
| | - Tong Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R. China
| | - Xiao-Gai Hou
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R. China
| | - Qi Qiao
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R. China
| | - Peng Song
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, P. R. China
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15
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Wahid M, Ali A, Saqib F, Aleem A, Bibi S, Afzal K, Ali A, Baig A, Khan SA, Bin Asad MHH. Pharmacological exploration of traditional plants for the treatment of neurodegenerative disorders. Phytother Res 2020; 34:3089-3112. [DOI: 10.1002/ptr.6742] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Muqeet Wahid
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Anam Ali
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Fatima Saqib
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Ambreen Aleem
- Faculty of Pharmacy, Department of Pharmacology Bahauddin Zakariya University Multan Pakistan
| | - Sumbal Bibi
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Khurram Afzal
- Institute of Food Science and Nutrition Bahauddin Zakariya University Multan Pakistan
| | - Atif Ali
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Ayesha Baig
- Department of Biotechnology COMSATS University Islamabad Abbottabad Pakistan
| | - Shujaat Ali Khan
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
| | - Muhammad Hassham Hassan Bin Asad
- Department of Pharmacy COMSATS University Islamabad Abbottabad Pakistan
- Department of Genetics, Institute of Fundamental Medicine and Biology Kazan Federal University Kazan Russia
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16
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Zhang H, Geng X, Li Z, Li Y, Xu K, Wu H, Xie J, Sun P, Wei S, Qiao M. Paeonol at Certain Doses Alleviates Aggressive and Anxiety-Like Behaviours in Two Premenstrual Dysphoric Disorder Rat Models. Front Psychiatry 2020; 11:295. [PMID: 32351418 PMCID: PMC7174695 DOI: 10.3389/fpsyt.2020.00295] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 03/25/2020] [Indexed: 12/18/2022] Open
Abstract
Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome (PMS), a common mental health disturbance associated with several periodic psychological symptoms in women. Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment for PMS/PMDD patients; however, side effects are inevitable, especially in long-term treatment. In previous studies, the natural compound paeonol in Moutan Cortex was found to play effective roles in central nervous system disorders with its anti-inflammatory, anti-oxidant, and neuroprotective effects. Consequently, we assume that paeonol might produce positive effects in the treatment of PMS/PMDD. In this study, the open-field test (OFT) and elevated plus maze (EPM) and light dark box (LDB) tests were performed in mice to determine the optimal dose of paeonol for treating anxiety. Then, paeonol was used to treat the progesterone withdrawal (PWD) and resident intruder paradigm (RIP) rat models of PMDD. Using these two reliable models, the OFT and EPM, LDB, and composite aggressive tests were performed to evaluate the effect of the drug on behavioural symptoms of PMDD. From the dosage screening results, the optimal anti-anxiety dose of paeonol was identified as 17.5 mg/kg/d for 7 days. With regard to the effect of paeonol on PMDD rat models, a significantly improvement was found in the behavioural symptoms, but the effective dose varied in different models. For the PWD model rats, treatment with 6.05 mg/kg paeonol could significantly improve anxiety and irritability, while that with 24.23 mg/kg paeonol resulted in anxiety-like effects in behavioural tests. In RIP model rats, treatment with 12.11 mg/kg paeonol demonstrated excellent effects in improving anxiety, particularly irritable emotional behaviour. In conclusion, our study indicates that paeonol is a potential therapeutic compound for PMS/PMDD; it is a drug option that helps establish dosage guidance for treatment of this condition.
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Affiliation(s)
- Hao Zhang
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Xiwen Geng
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China.,Experimental Center, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Zifa Li
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China.,Experimental Center, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Yaqiong Li
- Bozhou Institute of Traditional Chinese Medicine, Anhui Academy of Chinese Medicine Sciences, Bozhou, China
| | - Kaiyong Xu
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China.,Experimental Center, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Hongyun Wu
- No. 3 Department of Encephalopathy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Jinlu Xie
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang, School of Medicine, Huzhou University, Huzhou Central Hospital, Huzhou, China
| | - Peng Sun
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Sheng Wei
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China.,Experimental Center, Shandong University of Traditional Chinese Medicine, Ji'nan, China
| | - Mingqi Qiao
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Ji'nan, China
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17
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Zhao S, Liu Z, Yu Z, Wu X, Li R, Tang X. BIO alleviates inflammation through inhibition of GSK-3β in a rat model of intracerebral hemorrhage. J Neurosurg 2019; 133:383-391. [PMID: 31226691 DOI: 10.3171/2019.4.jns183501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/08/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Inflammation plays a key role in secondary brain damage following intracerebral hemorrhage (ICH). Glycogen synthase kinase-3β (GSK-3β) plays a strong proinflammatory role in many CNS diseases, including stroke. The present study was undertaken to examine the effects of 6-bromoindirubin-3'-oxime (BIO), a specific inhibitor of GSK-3β, on inflammation in ICH rats. METHODS An ICH rat model was induced by autologous whole-blood injection into the striatum. First, 10, 20, 40, 60, 80, or 100 μg/kg BIO was applied to ICH animals to determine an optimal dosage for producing sufficient GSK-3β inhibition in rat ipsilateral hippocampus by Western blotting. Second, 40 μg/kg BIO was applied to ICH rats for 1, 3, 7, or 14 days, respectively, to determine a suitable intervention time course of BIO by Western blotting analysis on GSK-3β. Third, Western blotting and enzyme-linked immunosorbent assay were used for quantification of inflammation-related factors upstream or downstream of GSK-3β in rat ipsilateral hippocampus. Then, immunohistochemical staining was applied to detect activated microglia and apoptotic cells in rat ipsilateral hippocampus. Last, neurobehavioral tests were performed to assess the sensorimotor impairments in the ICH rats. RESULTS The results show that BIO 1) blocked GSK-3βTyr216 phosphorylation/activation, thus stabilizing β-catenin, increasing upstream brain-derived neurotrophic factor and downstream heat shock protein 70 levels, and decreasing the levels of nuclear factor-κB p65 and cyclooxygenase 2; 2) decreased the levels of the proinflammatory cytokines tumor necrosis factor-α and interleukin (IL)-1β and IL-6 and elevated the level of antiinflammatory cytokine IL-10; 3) inhibited microglia activation and cell apoptosis; and 4) improved the sensorimotor deficits of ICH rats. CONCLUSIONS BIO posttreatment inhibited microglia activation, prevented inflammation and hippocampal cell death, and ameliorated functional and morphological outcomes in a rat ICH model through inactivation of GSK-3β.
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18
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Paeonol: pharmacological effects and mechanisms of action. Int Immunopharmacol 2019; 72:413-421. [PMID: 31030097 DOI: 10.1016/j.intimp.2019.04.033] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/09/2019] [Accepted: 04/16/2019] [Indexed: 12/16/2022]
Abstract
Paeonia suffruticosa possesses various medicinal benefits and has been used extensively in traditional oriental medicine for thousands of years. Paeonol is the main component isolated from the root bark of Paeonia suffruticosa. The pharmacological effects of Paeonia suffruticosa are mostly attributed to paeonol. Paeonol injection has been successfully applied in China for nearly 50 years for inflammation/pain-related indications. Currently, the dosage forms of paeonol approved by China Food and Drug Administration include tablet, injection, and external preparations such as ointment and adhesive plaster. So far, the clinical applications of paeonol are mainly focusing on the anti-inflammatory activity. Studies of other pharmacological activities of paeonol are developing rapidly, and which may play an important role in the future. Besides, substantial mechanisms of pharmacological action of paeonol have been clarified in recent years. In this review, we summarize the pharmacological effects anti-inflammatory, neuroprotective, anti-tumor, anti-cardiovascular diseases and associated mechanisms of action of paeonol up to date.
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19
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Kaempferol Attenuates LPS-Induced Striatum Injury in Mice Involving Anti-Neuroinflammation, Maintaining BBB Integrity, and Down-Regulating the HMGB1/TLR4 Pathway. Int J Mol Sci 2019; 20:ijms20030491. [PMID: 30678325 PMCID: PMC6386879 DOI: 10.3390/ijms20030491] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/18/2022] Open
Abstract
Neuroinflammation has been demonstrated to be linked with Parkinson’s disease (PD), Alzheimer’s disease, and cerebral ischemia. Our previous investigation had identified that kaempferol (KAE) exerted protective effects on cortex neuron injured by LPS. In this study, the effects and possible mechanism of KAE on striatal dopaminergic neurons induced by LPS in mice were further investigated. The results showed that KAE improved striatal neuron injury, and increased the levels of tyrosine hydroxylase (TH) and postsynaptic density protein 95 (PSD95) in the striatum of mice. In addition, KAE inhibited the production of pro-inflammatory cytokines, including interleukin 1β (IL-1β), interleukin 6 (IL-6), tumor necrosis factor α (TNF-α), reduced the level of monocyte chemotactic protein-1 (MCP-1), intercellular cell adhesion molecule-1 (ICAM-1), and cyclooxygenase-2 (COX-2) in the striatum tissues. Furthermore, KAE protected blood-brain barrier (BBB) integrity and suppressed the activation of the HMGB1/TLR4 inflammatory pathway induced by LPS in striatum tissues of mice. In conclusion, these results suggest that KAE may have neuroprotective effects against striatum injury that is induced by LPS and the possible mechanisms are involved in anti-neuroinflammation, maintaining BBB integrity, and down-regulating the HMGB1/TLR4 pathway.
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20
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Xie H, Li L, Sun Y, Wang Y, Gao S, Tian Y, Ma X, Guo C, Bo F, Zhang L. An Available Strategy for Nasal Brain Transport of Nanocomposite Based on PAMAM Dendrimers via In Situ Gel. NANOMATERIALS 2019; 9:nano9020147. [PMID: 30682799 PMCID: PMC6409925 DOI: 10.3390/nano9020147] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/13/2019] [Accepted: 01/15/2019] [Indexed: 12/13/2022]
Abstract
Polyamidoamine (PAMAM) dendrimers are efficient drug carriers. The presence of a physiological pathway for nasal brain transport provides a potential path for direct brain-targeted delivery of dendrimer nanocomposites. In this study, we synthesized PAMAM dendrimer composites with a nanoscale size; the particle size of PAE (Paeonol)/mPEG (the heterofunctional PEG polymer with a methoxy)-PAMAM G5.NHAc and mPEG-PAMAM G5.NH₂-FITC were 72.41 ± 11.58 nm and 96.51 ± 7.77 nm, and the zeta potential of PAE/mPEG-PAMAM G5.NHAc and mPEG-PAMAM G5.NH₂-FITC were + 0.57 ± 0.11 mv and + 9.60 ± 0.41 mv, respectively. The EE% and DL% of PAE in PAE/mPEG-PAMAM G5.NHAc were 53.77% and 13.92%, respectively. PAE/mPEG-PAMAM G5.NHAc/DGG ionic-sensitive in situ gel was prepared, the viscosity of solution and gel state were 112 ± 3.2 mPa and 1403 ± 38.5 mPa, respectively. The in vitro goat mucoadhesive strength of the gel was 4763.36 ± 85.39 dyne/cm². In situ gel system was proven to be a non-Newtonian pseudo-plastic fluid with shear thinning, thixotropy and yield stress. The optimal model of PAE released from PAE/mPEG-PAMAM G5.NHAc and PAE/mPEG-PAMAM G5.NHAc/DGG were the Higuchi equation and the Korsmeyer-Peppas equation, respectively. The cytotoxicity of the nanocomposites showed a concentration-dependence, and the cell viabilities of PAE/mPEG-PAMAM G5.NHAc were both higher than 95% between 0.0001 μM and 10 μM. mPEG-PAMAM G5.NH₂-FITC was efficiently taken up by cells and exhibited strong fluorescence in the cytoplasm and nucleus. Significant accumulation of nanocomposites was observed in the brain after administration of the in situ gel group, and maximum accumulation was reached at 12 h. A small amount of accumulation was observed in the nanocomposite solution group only at 2 h. Therefore, the direct nasal brain transport efficiency of PAMAM dendrimer nanocomposites can be significantly improved after combining with in situ gel. PAMAM dendrimer nanocomposite/DGG is a potential drug delivery system for nasal brain transport.
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Affiliation(s)
- Huichao Xie
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Lingjun Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yue Sun
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yuzhen Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Shuang Gao
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yuan Tian
- College of Graduate, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Xuemei Ma
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Chengcheng Guo
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Fumin Bo
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Li Zhang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
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21
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Liu YS, Hsu JW, Lin HY, Lai SW, Huang BR, Tsai CF, Lu DY. Bradykinin B1 receptor contributes to interleukin-8 production and glioblastoma migration through interaction of STAT3 and SP-1. Neuropharmacology 2019; 144:143-154. [PMID: 30366000 DOI: 10.1016/j.neuropharm.2018.10.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 10/20/2018] [Accepted: 10/22/2018] [Indexed: 01/05/2023]
Abstract
Glioblastoma (GBM), the most aggressive brain tumor, has a poor prognosis due to the ease of migration to surrounding healthy brain tissue. Recent studies have shown that bradykinin receptors are involved in the progression of various cancers. However, the molecular mechanism and pathological role of bradykinin receptors remains unclear. We observed the expressions of two major bradykinin receptors, B1R and B2R, in two different human GBM cell lines, U87 and GBM8901. Cytokine array analysis showed that bradykinin increases the production of interleukin (IL)-8 in GBM via B1R. Higher B1R levels correlate with IL-8 expression in U87 and GBM8901. We observed increased levels of phosphorylated STAT3 and SP-1 in the nucleus as well. Using chromatin immunoprecipitation assay, we found that STAT3 and SP-1 mediate IL-8 expression, which gets abrogated by the inhibition of FAK and STAT3. We further demonstrated that IL-8 expression and cell migration are also regulated by the SP-1. In addition, expression levels of STAT3 and SP-1 positively correlate with clinicopathological grades of gliomas. Interestingly, our results found that inhibition of HDAC increases IL-8 expression. Moreover, stimulation with bradykinin caused increases in acetylated SP-1 and p300 complex formation, which are abrogated by inhibition of FAK and STAT3. Meanwhile, knockdown of SP-1 and p300 decreased the augmentation of bradykinin-induced IL-8 expression. These results indicate that bradykinin-induced IL-8 expression is dependent on B1R which causes phosphorylated STAT3 and acetylated SP-1 to translocate to the nucleus, hence resulting in GBM migration.
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Affiliation(s)
- Yu-Shu Liu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Jhih-Wen Hsu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Hsiao-Yun Lin
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Sheng-Wei Lai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Bor-Ren Huang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan; Department of Neurosurgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Cheng-Fang Tsai
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan; Department of Photonics and Communication Engineering, Asia University, Taichung, Taiwan.
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Huang BR, Bau DT, Chen TS, Chuang IC, Tsai CF, Chang PC, Hsu HC, Lu DY. Pro-Inflammatory Stimuli Influence Expression of Intercellular Adhesion Molecule 1 in Human Anulus Fibrosus Cells through FAK/ERK/GSK3 and PKCδ Signaling Pathways. Int J Mol Sci 2018; 20:ijms20010077. [PMID: 30585203 PMCID: PMC6337379 DOI: 10.3390/ijms20010077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/06/2018] [Accepted: 12/22/2018] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Intervertebral disc (IVD) degeneration and disc herniation are major causes of lower back pain, which involve the presence of inflammatory mediators and tissue invasion by immune cells. Intercellular adhesion molecule 1 (ICAM1, also termed CD54) is an adhesion molecule that mediates cell-cell interactions, particularly between immune cells and target tissue. The aim of this study was to examine the intracellular signaling pathways involved in inflammatory stimuli-induced ICAM1 expression in human anulus fibrosus (AF) cells. METHODS Quantitative reverse transcription-polymerase chain reaction (qPCR), western blotting, and flow cytometry were performed to dissect the roles of different signaling pathways in inflammatory stimuli-mediated ICAM1 expression. RESULTS Using qPCR and western blot analyses, a significant increase in ICAM1 expression was observed in AF cells after stimulation of lipopolysaccharide (LPS) plus interferon-gamma (IFNγ) in a time-dependent manner. Flow cytometry revealed ICAM1 upregulation on the surface of AF cells. Importantly, LPS plus IFNγ treatment also significantly promoted Chemokine ligand (CCL)2 expression, but not CCL3. The enhanced ICAM1 expression was abolished after incubation with antibody against CCL2. In AF cells, treatment with LPS plus IFNγ activated the FAK/ERK/GSK3 signaling pathways, promoted a time-dependent increase in PKCδ phosphorylation, and promoted PKCδ translocation to the nucleus. Treatment with the pharmacological PKCδ inhibitor; rottlerin, effectively blocked the enhanced productions of ICAM1 and CCL2. CONCLUSIONS Inflammatory stimuli in AF cells are part of a specific pathophysiology in IVD degeneration and disc herniation that modulates CCL2/ICAM1 activation through the FAK/ERK/GSK3 and PKCδ signaling pathways in AF cells.
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Affiliation(s)
- Bor-Ren Huang
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan.
- Neurosurgery Department, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 42743, Taiwan.
- School of Medicine, Tzu Chi University, Hualien 97002, Taiwan.
| | - Da-Tian Bau
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Tzu-Sheng Chen
- Department of Pathology, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 42743, Taiwan.
| | - I-Chen Chuang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Cheng-Fang Tsai
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
| | - Pei-Chun Chang
- Department of Bioinformatics, Asia University, Taichung 41354, Taiwan.
| | - Horng-Chaung Hsu
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40402, Taiwan.
| | - Dah-Yuu Lu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung 40402, Taiwan.
- Department of Photonics and Communication Engineering, Asia University, Taichung 41354, Taiwan.
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Liu CM, Yang HX, Ma JQ, Yang W, Feng ZJ, Sun JM, Cheng C, Li J, Jiang H. Role of AMPK pathway in lead-induced endoplasmic reticulum stress in kidney and in paeonol-induced protection in mice. Food Chem Toxicol 2018; 122:87-94. [DOI: 10.1016/j.fct.2018.10.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 09/25/2018] [Accepted: 10/04/2018] [Indexed: 11/25/2022]
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24
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Wang MX, Zhao JX, Meng YJ, Di TT, Xu XL, Xie XJ, Lin Y, Zhang L, Wang N, Li P, Wang Y. Acetyl-11-keto-β-boswellic acid inhibits the secretion of cytokines by dendritic cells via the TLR7/8 pathway in an imiquimod-induced psoriasis mouse model and in vitro. Life Sci 2018; 207:90-104. [DOI: 10.1016/j.lfs.2018.05.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/21/2018] [Accepted: 05/26/2018] [Indexed: 01/06/2023]
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25
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Jang MH, Kim KY, Song PH, Baek SY, Seo HL, Lee EH, Lee SG, Park KI, Ahn SC, Kim SC, Kim YW. Moutan Cortex Protects Hepatocytes against Oxidative Injury through AMP-Activated Protein Kinase Pathway. Biol Pharm Bull 2018; 40:797-806. [PMID: 28566623 DOI: 10.1248/bpb.b16-00884] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Moutan Cortex, the root bark of Paeonia suffruticosa ANDREWS in Ranunculaceae, has widely demonstrated analgesic, anti-spasmodic, and anti-inflammatory effects in various cancer and immune cell lines. Oxidative stress is associated with development of several diseases, including liver disease. We prepared the water extract of Moutan Cortex (MCE) to investigate the cytoprotective activities and its mechanism. MCE protected hepatocytes from arachidonic acid (AA)+iron induced oxidative stress, as indicated by reactive oxygen species (ROS) production and cell viability analysis. MCE also suppressed mitochondrial dysfunction in AA+iron-treated human hepatocyte-derived hepatocellular carcinoma cell line, HepG2 cells. In addition, MCE treatment induces AMP-activated protein kinase (AMPK) and liver kinase B1 phosphorylation, which play a role in inhibition of oxidative stress induced cell death. Moreover, one of the MCE compounds, chlorogenic acid, exerted protective effects against oxidative stress and apoptosis. Taken together, MCE protected hepatocytes against AA+iron-induced oxidative stress through AMPK activation, and may be a candidate for the treatment of liver disease.
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Affiliation(s)
- Mi Hee Jang
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Kwang-Youn Kim
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Phil Hyun Song
- Department of Urology, Yeungnam University College of Medicine
| | - Su Youn Baek
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Hye Lim Seo
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Eun Hye Lee
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University.,Department of Clinical Laboratory Science, College of Health and Therapy, Daegu Haany University
| | - Suel-Gi Lee
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Kwang Il Park
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM)
| | - Soon-Cheol Ahn
- Department of Microbiology & Immunology, Pusan National University School of Medicine
| | - Sang Chan Kim
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
| | - Young Woo Kim
- Department of Herbal Formula, Medical Research Center (MRC-GHF), College of Oriental Medicine, Daegu Haany University
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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 SS, Wu Q, Yin DD, Feng CY, Liu ZA, Wang LS. Phytochemical variation among the traditional Chinese medicine Mu Dan Pi from Paeonia suffruticosa (tree peony). PHYTOCHEMISTRY 2018; 146:16-24. [PMID: 29207319 DOI: 10.1016/j.phytochem.2017.11.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 11/06/2017] [Accepted: 11/22/2017] [Indexed: 05/12/2023]
Abstract
Mu Dan Pi is a traditional Chinese medicine used to treat inflammation, cancer, allergies, diabetes, angiocardiopathy, and neurodegenerative diseases. In this study, the metabolome variation within Mu Dan Pi collected from 372 tree peony cultivars was systematically investigated. In total, 42 metabolites were identified, comprising of 14 monoterpene glucosides, 11 tannins, 8 paeonols, 6 flavonoids, and 3 phenols. All cultivars revealed similar metabolite profiles, however, they were further classified into seven groups on the basis of their varying metabolite contents by hierarchical cluster analysis. Traditional cultivars for Mu Dan Pi were found to have very low metabolite contents, falling into clusters I and II. Cultivars with the highest amounts of metabolites were grouped in clusters VI and VII. Five potential cultivars, namely, 'Bai Yuan Qi Guan', 'Cao Zhou Hong', 'Da Zong Zi', 'Sheng Dan Lu', and 'Cheng Xin', with high contents of monoterpene glycosides, tannins, and paeonols, were further screened. Interestingly, the majority of investigated cultivars had relatively higher metabolite contents compared to the traditional medicinal tree peony cultivars.
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Affiliation(s)
- Shan-Shan Li
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China
| | - Qian Wu
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dan-Dan Yin
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cheng-Yong Feng
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zheng-An Liu
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China.
| | - Liang-Sheng Wang
- Key Laboratory of Plant Resources/Beijing Botanical Garden, Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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28
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Xu L, Long J, Shi C, Zhang N, Lv Y, Feng J, Xuan A, He X, Li Q, Bai Y, Liu S, Long D. Effect of leukocyte inhibitory factor on neuron differentiation from human induced pluripotent stem cell-derived neural precursor cells. Int J Mol Med 2018; 41:2037-2049. [PMID: 29393372 PMCID: PMC5810244 DOI: 10.3892/ijmm.2018.3418] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/05/2018] [Indexed: 12/27/2022] Open
Abstract
Direct derivation of human induced pluripotent stem cells into neural precursor cells and differentiation of these into neurons holds great promise in the cell therapy of neuro-degenerative diseases. However, the availability and survival rate of neurons requires improvement. In the present study, it was found that the addition of 5 ng/ml leukocyte inhibitory factor (LIF) during the process of differentiation significantly improved the expression of neuron-specific class III β-tubulin (TUJ1) and microtubule-associated protein 2 (MAP2), as detected by immunofluorescence and western blotting. In addition, LIF improved the cell viability, increased the expression of phosphorylated-protein kinase B (AKT), downregulated the expression of proinflammatory cytokines, including interleukin-1α (IL-1α) and tumor necrosis factor-α (TNF-α), and upregulated the expression of anti-inflammatory cytokines, including interleukin-10 (IL-10) and transforming growth factor-β (TGF-β). After adding the phosphatidylinositol 3-kinase (PI3K)/AKT signaling inhibitor LY294002 or wortmannin to the LIF differentiation group, LIF-induced changes in the protein expression of TUJ1 and MAP2 were reversed, but this effect could not be prevented by rapamycin, a mechanistic target of rapamycin signaling inhibitor. The expression of cytokines associated with inflammation and cell viability was reversed by LY294002 and wortmannin, but not by rapamycin. In conclusion, LIF could improve neuronal differentiation and survival through the activation of PI3K/AKT signaling and the anti-inflammatory effect. The anti-inflammatory effect may be mediated by the activation of PI3K/AKT.
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Affiliation(s)
- Liping Xu
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Jingyi Long
- Institute of Neuroscience and The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Chun Shi
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Nianping Zhang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Ying Lv
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Junda Feng
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Aiguo Xuan
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Xiaosong He
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Qingqing Li
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Yinshan Bai
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Shanshan Liu
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Dahong Long
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
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Zong S, Pu Y, Li S, Xu B, Zhang Y, Zhang T, Wang B. Beneficial anti-inflammatory effect of paeonol self-microemulsion-loaded colon-specific capsules on experimental ulcerative colitis rats. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:324-335. [DOI: 10.1080/21691401.2017.1423497] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shiyu Zong
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiqiong Pu
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Suyun Li
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Benliang Xu
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong Zhang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tong Zhang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bing Wang
- Experimental Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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30
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Wang ZQ, Shen J, Li P, Liu SS, Yi F, Liu HB, Wu FR, He CN, Chen FH, Xiao PG. Research on Quality Markers of Moutan Cortex : Quality Evaluation and Quality Standards of Moutan Cortex. CHINESE HERBAL MEDICINES 2017. [DOI: 10.1016/s1674-6384(17)60110-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Wang Z, He C, Peng Y, Chen F, Xiao P. Origins, Phytochemistry, Pharmacology, Analytical Methods and Safety of Cortex Moutan (Paeonia suffruticosa Andrew): A Systematic Review. Molecules 2017; 22:E946. [PMID: 28590441 PMCID: PMC6152737 DOI: 10.3390/molecules22060946] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/02/2017] [Accepted: 06/03/2017] [Indexed: 11/17/2022] Open
Abstract
Cortex Moutan (CM), a well-known traditional Chinese medicine, is commonly used for treating various diseases in China and other eastern Asian countries. Recorded in Pharmacopeias of several countries, CM is now drawing increasing attention and under extensive studies in various fields. Phytochemical studies indicate that CM contains many valuable secondary metabolites, such as monoterpene glycosides and phenols. Ample evidence from pharmacological researches suggest that CM has a wide spectrum of activities, such as anti-inflammatory, anti-oxidant, anti-tumor, anti-diabetic, cardiovascular protective, neuroprotective, hepatoprotective effects. Moreover, various analytical methods were established for the quality evaluation and safety control of CM. This review synopsizes updated information concerning the origins, phytochemistry, pharmacology, analytical method and safety of CM, aiming to provide favorable references for modern CM research and application. In conclusion, continuing pharmacological investigations concerning CM should be conducted to unravel its pharmacological mechanisms. Further researches are necessary to obtain comprehensive and applicable analytical approach for quality evaluation and establish harmonized criteria of CM.
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Affiliation(s)
- Zhiqiang Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China.
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.
| | - Chunnian He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.
| | - Yong Peng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.
| | - Feihu Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, China.
| | - Peigen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.
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Choy KW, Lau YS, Murugan D, Mustafa MR. Chronic treatment with paeonol improves endothelial function in mice through inhibition of endoplasmic reticulum stress-mediated oxidative stress. PLoS One 2017; 12:e0178365. [PMID: 28562691 PMCID: PMC5451063 DOI: 10.1371/journal.pone.0178365] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/11/2017] [Indexed: 02/06/2023] Open
Abstract
Endoplasmic reticulum (ER) stress leads to endothelial dysfunction which is commonly associated in the pathogenesis of several cardiovascular diseases. We explored the vascular protective effects of chronic treatment with paeonol (2'-hydroxy-4'-methoxyacetophenone), the major compound from the root bark of Paeonia suffruticosa on ER stress-induced endothelial dysfunction in mice. Male C57BL/6J mice were injected intraperitoneally with ER stress inducer, tunicamycin (1 mg/kg/week) for 2 weeks to induce ER stress. The animals were co-administered with or without paeonol (20 mg/kg/oral gavage), reactive oxygen species (ROS) scavenger, tempol (20 mg/kg/day) or ER stress inhibitor, tauroursodeoxycholic acid (TUDCA, 150 mg/kg/day) respectively. Blood pressure and body weight were monitored weekly and at the end of treatment, the aorta was isolated for isometric force measurement. Protein associated with ER stress (GRP78, ATF6 and p-eIF2α) and oxidative stress (NOX2 and nitrotyrosine) were evaluated using Western blotting. Nitric oxide (NO) bioavailability were determined using total nitrate/nitrite assay and western blotting (phosphorylation of eNOS protein). ROS production was assessed by en face dihydroethidium staining and lucigenin-enhanced chemiluminescence assay, respectively. Our results revealed that mice treated with tunicamycin showed an increased blood pressure, reduction in body weight and impairment of endothelium-dependent relaxations (EDRs) of aorta, which were ameliorated by co-treatment with either paeonol, TUDCA and tempol. Furthermore, paeonol reduced the ROS level in the mouse aorta and improved NO bioavailability in tunicamycin treated mice. These beneficial effects of paeonol observed were comparable to those produced by TUDCA and tempol, suggesting that the actions of paeonol may involve inhibition of ER stress-mediated oxidative stress pathway. Taken together, the present results suggest that chronic treatment with paeonol preserved endothelial function and normalized blood pressure in mice induced by tunicamycin in vivo through the inhibition of ER stress-associated ROS.
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Affiliation(s)
- Ker Woon Choy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yeh Siang Lau
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Dharmani Murugan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohd Rais Mustafa
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail:
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Velagapudi R, El-Bakoush A, Lepiarz I, Ogunrinade F, Olajide OA. AMPK and SIRT1 activation contribute to inhibition of neuroinflammation by thymoquinone in BV2 microglia. Mol Cell Biochem 2017; 435:149-162. [PMID: 28551846 PMCID: PMC5632349 DOI: 10.1007/s11010-017-3064-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 05/05/2017] [Indexed: 12/26/2022]
Abstract
Thymoquinone is a known inhibitor of neuroinflammation. However, the mechanism(s) involved in its action remain largely unknown. In this study, we investigated the roles of cellular reactive oxygen species (ROS), 5' AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) in the anti-neuroinflammatory activity of thymoquinone. We investigated effects of the compound on ROS generation in LPS-activated microglia using the fluorescent 2',7'-dichlorofluorescin diacetate (DCFDA)-cellular ROS detection. Immunoblotting was used to detect protein levels of p40phox, gp91phox, AMPK, LKB1 and SIRT1. Additionally, ELISA and immunofluorescence were used to detect nuclear accumulation of SIRT1. NAD+/NADH assay was also performed. The roles of AMPK and SIRT1 in anti-inflammatory activity of thymoquinone were investigated using RNAi and pharmacological inhibition. Our results show that thymoquinone reduced cellular ROS generation, possibly through inhibition of p40phox and gp91phox protein. Treatment of BV2 microglia with thymoquinone also resulted in elevation in the levels of LKB1 and phospho-AMPK proteins. We further observed that thymoquinone reduced cytoplasmic levels and increased nuclear accumulation of SIRT1 protein and increased levels of NAD+. Results also show that the anti-inflammatory activity of thymoquinone was abolished when the expressions of AMPK and SIRT1 were suppressed by RNAi or pharmacological antagonists. Pharmacological antagonism of AMPK reversed thymoquinone-induced increase in SIRT1. Taken together, we propose that thymoquinone inhibits cellular ROS generation in LPS-activated BV2 microglia. It is also suggested that activation of both AMPK and NAD+/SIRT1 may contribute to the anti-inflammatory, but not antioxidant activity of the compound in BV2 microglia.
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Affiliation(s)
- Ravikanth Velagapudi
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK.,Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Abdelmeneim El-Bakoush
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Izabela Lepiarz
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Folashade Ogunrinade
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK.
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Meng Y, Wang M, Xie X, Di T, Zhao J, Lin Y, Xu X, Li N, Zhai Y, Wang Y, Li P. Paeonol ameliorates imiquimod-induced psoriasis-like skin lesions in BALB/c mice by inhibiting the maturation and activation of dendritic cells. Int J Mol Med 2017; 39:1101-1110. [PMID: 28339016 PMCID: PMC5403289 DOI: 10.3892/ijmm.2017.2930] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/09/2017] [Indexed: 11/22/2022] Open
Abstract
Paeonol, an active component derived from the traditional Chinese medicine Cortex Moutan, possesses anti-inflammatory, analgesic, antioxidant and anti-allergic properties. Psoriasis is a chronic, recurrent, inflammatory dermatosis accompanied by excessive activation of Toll-like receptors (TLRs) in dendritic cells (DCs), which are primarily responsible for initiating an immune response. We investigated the effect of paeonol on inflammation in an imiquimod (IMQ)-induced psoriasis-like mouse model and murine bone marrow-derived dendritic cells (BMDCs) stimulated by R848. Mice were intragastrically administered 100 mg/kg (high), 50 mg/kg (medium) and 25 mg/kg (low) paeonol, respectively. We evaluated inflammation of psoriasis-like lesions based on histological changes, protein levels of myeloid differentiation factor 88 (MyD88) and TLR8 in skin lesions by western blotting, and levels of CD11c+ DCs in skin by immunoassay and in spleens by flow cytometry. Inflammatory cytokines [interleukin (IL)-23, IL-12 and IL-1β] in skin lesions and BMDCs were also assessed by RT-PCR and ELISA. Application of paeonol decreased IMQ-induced keratinocyte proliferation, and infiltration of CD3+ cells, while the treatment ameliorated CD11c+ cells in the spleen and skin, and reduced MyD88 and TLR8 proteins in skin lesions. Paeonol inhibited IMQ-induced mRNA expression of IL-23, but not IL-12 and IL-1β in BMDCs, along with significantly lower levels of DCs expressing MHCII, CD80 and CD86 in vitro. These results indicate that paeonol suppresses the maturation and activation of DCs by decreasing MyD88 and TLR8 proteins in the TLR7/8 signaling pathway which finally alleviates psoriasis-like skin lesions. The TLR7/8 signaling pathway in DCs provides an important insight into the mechanism of psoriasis, and paeonol may be a potent therapeutic drug for psoriasis.
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Affiliation(s)
- Yujiao Meng
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Mingxing Wang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Xiangjiang Xie
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Tingting Di
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Jingxia Zhao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Yan Lin
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Xiaolong Xu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Ningfei Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Yating Zhai
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Yan Wang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing Key Laboratory of Clinic and Basic Research with TCM on Psoriasis, Beijing 100010, P.R. China
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Paeonol Inhibits Lipopolysaccharide-Induced HMGB1 Translocation from the Nucleus to the Cytoplasm in RAW264.7 Cells. Inflammation 2017; 39:1177-87. [PMID: 27106477 DOI: 10.1007/s10753-016-0353-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Transport of high-mobility group box 1 (HMGB1), a highly conserved non-histone DNA-binding protein, from the nucleus to the cytoplasm is induced by lipopolysaccharide (LPS). Secretion of HMGB1 appears to be a key lethal factor in sepsis, so it is considered to be a therapeutic target. Previous studies have suggested that paeonol (2'-hydroxy-4'-methoxyacetophenone), an active compound of Paeonia lactiflora Pallas, exerts anti-inflammatory effects. However, the effect of paeonol on HMGB1 is unknown. Here, we investigated the effect of paeonol on the expression, location, and secretion of HMGB1 in LPS-induced murine RAW264.7 cells. ELISA revealed HMGB1 supernatant concentrations of 615 ± 30 ng/mL in the LPS group and 600 ± 45, 560 ± 42, and 452 ± 38 ng/mL in cells treated with 0.2, 0.6, or 1 mM paeonol, respectively, suggesting that paeonol inhibits HMGB1 secretion induced by LPS. Immunohistochemistry and Western blotting revealed that paeonol decreased cytoplasmic HMGB1 and increased nuclear HMGB1. Chromatin immunoprecipitation microarrays suggested that HMGB1 relocation to the nucleus induced by paeonol might depress the action of Janus kinase/signal transducers and activators of transcription, chemokine, and mitogen-activated protein kinase pro-inflammatory signaling pathways. Paeonol was also found to inhibit tumor necrosis factor-α promoter activity in a dose-dependent manner. These results indicate that paeonol has the potential to be developed as a novel HMGB1-targeting therapeutic drug for the treatment of inflammatory diseases.
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Jung EH, Hwang JS, Kwon MY, Kim KH, Cho H, Lyoo IK, Shin S, Park JH, Han IO. A tryptamine-paeonol hybridization compound inhibits LPS-mediated inflammation in BV2 cells. Neurochem Int 2016; 100:35-43. [PMID: 27567737 DOI: 10.1016/j.neuint.2016.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/02/2016] [Accepted: 08/23/2016] [Indexed: 01/27/2023]
Abstract
In the present study, we synthesized and evaluated the anti-inflammatory effects of three tryptamine (Trm) hybrid compounds, HBU-375, HBU-376 and HBU-379. The Click reaction between the azido-Trm and 2- or 4-propazylated paeonol moiety resulted in HBU-376 and HBU-375, respectively. HBU-379 was generated by hybridizing Trm with propazylated acetyl-syringic acid. HBU-376 and HBU-375 dose-dependently inhibited LPS and caused nitric oxide (NO) generation in BV2 cells, whereas HBU-379 minimally inhibited NO generation, indicating that the paeonol unit plays an important role in the anti-inflammatory effect of Trm hybrid compounds. Although HBU-375 and HBU-376 demonstrated a similar inhibitory effect on LPS-induced NO generation, HBU-376 resulted in less cellular toxicity presumably due to the free phenolic hydroxyl group of paeonol. Therefore, HBU-376 may be a promising anti-inflammatory agent conferring minimal cytotoxicity. HBU-376 significantly and dose-dependently inhibited LPS-induced NO products, NO synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6, MCP-1 and interleukin-1β mRNA expressions and iNOS and COX-2 protein expressions. However, at the same concentrations, Trm or paeonol individually did not inhibit LPS-mediated production of inflammatory molecules. HBU-376 inhibited both LPS-induced STAT-3 phosphorylation and nuclear factor-kappa B (NF-κB) activation. Furthermore, LPS-mediated DNA binding of c-Rel, p50 and p52 to the NF-κB binding site of the iNOS promoter was inhibited by HBU-376, whereas Trm and paeonol did not inhibit LPS-induced NF-κB activation and DNA binding of c-Rel, p50 and p52. Overall, our data suggest that the Trm-paeonol hybrid compound down-regulates inflammatory responses by inhibiting NF-κB and NF-κB-dependent gene expression. This suggests that it is a potential therapeutic agent for inflammatory diseases of the central nervous system.
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Affiliation(s)
- Eun-Hye Jung
- Department of Physiology and Biophysics, College of Medicine, Inha University, Incheon, South Korea
| | - Ji-Sun Hwang
- Department of Physiology and Biophysics, College of Medicine, Inha University, Incheon, South Korea
| | - Mi-Youn Kwon
- Department of Physiology and Biophysics, College of Medicine, Inha University, Incheon, South Korea
| | - Kyung-Hong Kim
- Department of Physiology and Biophysics, College of Medicine, Inha University, Incheon, South Korea
| | - Hyeongjin Cho
- Department of Chemistry, Inha University, Incheon, South Korea
| | - In Kyoon Lyoo
- Ewha Brain Institute, Department of Brain and Cognitive Sciences, College of Pharmacy, Ewha Womans University, Seoul, South Korea
| | - Sujeong Shin
- Department of Chemical & Biological Engineering, Hanbat National University, Daejeon, South Korea
| | - Jeong-Ho Park
- Department of Chemical & Biological Engineering, Hanbat National University, Daejeon, South Korea
| | - Inn-Oc Han
- Department of Physiology and Biophysics, College of Medicine, Inha University, Incheon, South Korea.
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Shi X, Chen YH, Liu H, Qu HD. Therapeutic effects of paeonol on methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid-induced Parkinson's disease in mice. Mol Med Rep 2016; 14:2397-404. [PMID: 27484986 PMCID: PMC4991680 DOI: 10.3892/mmr.2016.5573] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 05/18/2016] [Indexed: 12/22/2022] Open
Abstract
Paeonol is a major phenolic compound of the Chinese herb, Cortex Moutan, and is known for its antioxidant, anti-inflammatory and antitumor properties. The present study was designed to investigate the therapeutic potential and underlying mechanisms of paeonol on a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid (MPTP/p)-induced mouse model of Parkinson's disease (PD). MPTP (25 mg/kg), followed by probenecid (250 mg/kg), was administered via i.p. injection for five consecutive days to induce the mouse model of PD. Paeonol (20 mg/kg) was administrated orally for 21 days. Behavior was assessed using the rotarod performance and open-field tests. Additionally, the levels of tyrosine hydroxylase (TH), microglia, interleukin-1β (IL-1β), and brain-derived neurotrophic factor (BDNF) in the substantia nigra pars compacta (SNpc) were evaluated by immunohistochemical staining. MPTP/p-induced motor deficits were observed to be significantly improved following long-term treatment with paeonol. Paeonol treatment decreased MPTP/p-induced oxidative stress, as determined by evaluating the activity levels of superoxide dismutase, catalase and glutathione. Additionally, MPTP/p-induced neuroinflammation was assessed by examining the levels of microglia and IL-1β, which were significantly decreased following paeonol treatment. Paeonol treatment improved the MPTP/p-induced dopaminergic neurodegeneration, as measured by observing the increased TH level in the SNpc. Furthermore, the BDNF level was significantly elevated in the paeonol treatment group compared with mice treated with MPTP/p only. In conclusion, paeonol exerted therapeutic effects in the MPTP/p-induced mouse model of PD, possibly by decreasing the damage from oxidative stress and neuroinflammation, and by enhancing the neurotrophic effect on dopaminergic neurons. The results demonstrate paeonol as a potential novel treatment for PD.
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Affiliation(s)
- Xiaojin Shi
- Department of Neurology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yu-Hua Chen
- Department of Neurology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Hao Liu
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Hong-Dang Qu
- Department of Neurology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
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Choy KW, Mustafa MR, Lau YS, Liu J, Murugan D, Lau CW, Wang L, Zhao L, Huang Y. Paeonol protects against endoplasmic reticulum stress-induced endothelial dysfunction via AMPK/PPARδ signaling pathway. Biochem Pharmacol 2016; 116:51-62. [PMID: 27449753 DOI: 10.1016/j.bcp.2016.07.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 07/18/2016] [Indexed: 12/31/2022]
Abstract
Endoplasmic reticulum (ER) stress in endothelial cells often leads to endothelial dysfunction which underlies the pathogenesis of cardiovascular diseases. Paeonol, a major phenolic component extracted from Moutan Cortex, possesses various medicinal benefits which have been used extensively in traditional Chinese medicine. The present study investigated the protective mechanism of paeonol against tunicamycin-induced ER stress in isolated mouse aortas and human umbilical vein endothelial cells (HUVECs). Vascular reactivity in aorta was measured using a wire myograph. The effects of paeonol on protein expression of ER stress markers, reactive oxygen species (ROS) production, nitric oxide (NO) bioavailability and peroxisome proliferator-activated receptor δ (PPARδ) activity in the vascular wall were assessed by Western blot, dihydroethidium fluorescence (DHE) or lucigenin enhanced-chemiluminescence, 4-amino-5-methylamino-2',7'-difluorofluorescein (DAF-FM DA) and dual luciferase reporter assay, respectively. Ex vivo treatment with paeonol (0.1μM) for 16h reversed the impaired endothelium-dependent relaxations in C57BJ/6J and PPARδ wild type (WT) mouse aortas following incubation with tunicamycin (0.5μg/mL). Elevated ER stress markers, oxidative stress and reduction of NO bioavailability induced by tunicamycin in HUVECs, C57BJ/6J and PPARδ WT mouse aortas were reversed by paeonol treatment. These beneficial effects of paeonol were diminished in PPARδ knockout (KO) mouse aortas. Paeonol increased the expression of 5' adenosine monophosphate-activated protein kinase (AMPK) and PPARδ expression and activity while restoring the decreased phosphorylation of eNOS. The present study delineates that paeonol protects against tunicamycin-induced vascular endothelial dysfunction by inhibition of ER stress and oxidative stress, thus elevating NO bioavailability via the AMPK/PPARδ signaling pathway.
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Affiliation(s)
- Ker-Woon Choy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohd Rais Mustafa
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
| | - Yeh Siang Lau
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Jian Liu
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Dharmani Murugan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chi Wai Lau
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Li Wang
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Lei Zhao
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Yu Huang
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China.
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Sohanaki H, Baluchnejadmojarad T, Nikbakht F, Roghani M. Pelargonidin improves memory deficit in amyloid β25-35 rat model of Alzheimer's disease by inhibition of glial activation, cholinesterase, and oxidative stress. Biomed Pharmacother 2016; 83:85-91. [PMID: 27470554 DOI: 10.1016/j.biopha.2016.06.021] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 05/30/2016] [Accepted: 06/10/2016] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) is a multifactorial disorder with devastating outcomes and few mostly palliative available therapeutic strategies. Pelargonidin (Pel), an anthocyanin compound, is an estrogen receptor agonist with lower side effects versus estrogen. This study examined neuroprotective effect of Pel on intrahippocampal amyloid β25-35 (Aβ) rat model of AD. Rats were divided into groups of sham, Aβ, and Pel-pretreated Aβ (10mg/kg; p.o.). Animals underwent Morris water maze (MWM) test in addition to measurement of hippocampal oxidative stress, acetylcholinesterase (AChE) activity, glial fibrillary acidic protein (GFAP) and inducible nitric oxide synthase (iNOS). Pel pretreatment of Aβ group significantly improved escape latency and distance swum in MWM versus Aβ group and attenuated hippocampal malondialdehyde (MDA) and increased catalase activity with no significant change of nitrite. Meanwhile, Pel improved hippocampal AChE activity and lowered GFAP level with no significant change of iNOS. Our results suggest that Pel could improve Aβ25-35-induced memory deficit through mitigation of oxidative stress, cholinergic dysfunction, and astrocyte reaction.
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Affiliation(s)
- Hamid Sohanaki
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Farnaz Nikbakht
- Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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Ye S, Liu X, Mao B, Yang L, Liu N. Paeonol enhances thrombus recanalization by inducing vascular endothelial growth factor 165 via ERK1/2 MAPK signaling pathway. Mol Med Rep 2016; 13:4853-8. [PMID: 27082415 DOI: 10.3892/mmr.2016.5135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 03/10/2016] [Indexed: 11/06/2022] Open
Abstract
Paeonol (2'-hydroxy-4'-methoxyacetophenone) is the major active compound of Mautan cortex and has been demonstrated to inhibit platelet aggregation in previous studies. The current study aimed to elucidate the underlying molecular mechanism of paeonol in recanalizing thrombi. The presence of indicators of prothrombotic state (PTS) in the serum of the model animals were determined by enzyme‑linked immunosorbent assay (ELISA) assay and the cytotoxicity of paeonol on human umbilical vein endothelial cell (HUVEC) cultures was estimated by 3‑(4,5 dimethylthiazol‑2‑yl)-2,5-diphenyltetrazolium bromide assay. The possible underlying signaling pathway involved in the interaction between paeonol and vascular endothelial growth factor 165 (VEGF165) was investigated using western blotting. The levels of 6‑keto‑prostaglandin F1α, fibronectin, and VEGF165 in serum were significantly upregulated by the treatment of paeonol while the levels of fibrinogen, D‑dimer, and thromboxane B2 were significantly downregulated (P<0.05). With increased paeonol concentration, the cell viability of HUVECs gradually decreased. The results of the western blot analysis demonstrated that paeonol increased the expression levels of phosphorylated‑extracellular signal‑regulated kinase (ERK1/2) and VEGF165 but had no marked effect on the expression level of ERK1/2. Paeonol has the potential to improve PTS and recanalize thrombi in animal models, which may be by the upregulation of VEGF165 via the ERK1/2 mitogen activated protein kinase signaling pathway. However, this positive effect depended on the concentration of paeonol used, an unsuitably high concentration of the compound exerted negative effects on the anti‑thrombosis signaling pathways.
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Affiliation(s)
- Songshan Ye
- Department of Medical Experimental Center, Zhang Zhongjing Traditional Chinese Medicine College, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
| | - Xianjuan Liu
- Department of Neurology, The First People's Hospital of Nanyang, Nanyang, Henan 473000, P.R. China
| | - Bingyu Mao
- Department of Medical Experimental Center, Zhang Zhongjing Traditional Chinese Medicine College, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
| | - Lei Yang
- Department of Medical Experimental Center, Zhang Zhongjing Traditional Chinese Medicine College, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
| | - Nuan Liu
- Department of Medical Experimental Center, Zhang Zhongjing Traditional Chinese Medicine College, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
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