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Bian Z, Cao C, Ding J, Ding L, Yu S, Zhang C, Liu Q, Zhu L, Li J, Zhang Y, Liu Y. Neuroprotective effects of PRG on Aβ 25-35-induced cytotoxicity through activation of the ERK1/2 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116550. [PMID: 37120057 DOI: 10.1016/j.jep.2023.116550] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Phylloporia ribis (Schumach:Fr.)Ryvarden is a genus of needle Phellinus medicinal fungi, parasitic on the living rhizomes of hawthorn and pear trees. As a traditional Chinese medicine, Phylloporia ribis was used in folklore for long-term illness, weakness and memory loss in old age. Previous studies have shown that polysaccharides from Phylloporia ribis (PRG) significantly promoted synaptic growth in PC12 cells in a dose-dependent manner, exhibiting "NGF"-like neurotrophic activity. Aβ25-35 damage to PC12 cells produced neurotoxicity and decreased cell survival, and PRG reduced the apoptosis rate, suggesting that PRG has neuroprotective effects. The studies confirmed that PRG had the potential to be a neuroprotective agent, but its neuroprotective mechanism remained unclear. AIM OF THE STUDY We aimed to elucidate the neuroprotective effects of PRG in an Aβ25-35-induced Alzheimer's disease (AD) model. MATERIALS AND METHODS Highly-differentiated PC12 cells were treated with Aβ25-35 (AD model) and PRG, and were assessed for cellular apoptosis, inflammatory factors, oxidative stress, and kinase phosphorylation. RESULTS The results showed that the PRG groups effectively inhibited the neurotoxicity, mainly manifested by inhibiting mitochondrial oxidative stress, attenuating neuroinflammatory responses, and improving mitochondrial energy metabolism, eventually resulting in higher cell survival. The expression of p-ERK, p-CREB and BDNF proteins was increased in the PRG groups compared to the model group, which confirmed that PRG reversed the inhibition of the ERK pathway. CONCLUSION We provide evidence for neuroprotection conferred by PRG and its mechanism by inhibiting ERK1/2 hyper-phosphorylation, prevention of mitochondrial stress, and subsequent prevention of apoptosis. The study highlights PRG as a promising candidate with neuroprotective effects, the potential of which can be harnessed for identifying novel therapeutic targets.
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Affiliation(s)
- Zhiying Bian
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Chenzhen Cao
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China; Health Surveillance Section, Junan County Center for Disease Control and Prevention, Linyi, 276600, China
| | - Jie Ding
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Liang Ding
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Shuai Yu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Chuanxiang Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Qian Liu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Lihao Zhu
- Sishui Siheyuan Culture and Tourism Development Company, Ltd, Sishui, 273200, China
| | - Jing Li
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Yongqing Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Yuhong Liu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
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Liu J, You L, Yang C, Sai N, Wu H, Sun M, Cai M, Peng H, Liang X, Yin X, Ni J. Phytochemical identification of Xiaoer Huanglong Granule and pharmacokinetic study in the rat using its seven major bioactive components. J Sep Sci 2022; 45:2804-2818. [PMID: 35662416 DOI: 10.1002/jssc.202200245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 11/07/2022]
Abstract
Xiaoer Huanglong Granule is the only Chinese Patent Medicine widely used for treating attention deficit hyperactivity disorder. However, not much is known on the bioactive components and pharmacokinetics of Xiaoer Huanglong Granule even after it was successfully introduced into clinical use. This study analyzed the components in the medication and rat plasma after oral administration with the help of UNIFI platform and Masslynx. A total of 119 and 37 components were detected in the medication and plasma, respectively, using ultra performance liquid chromatography - tandem mass spectrometer. We established a rapid and sensitive simultaneous determination of 1 triterpene saponin, 3 monoterpene glycosides, and 3 lignans in rat plasma by solid-phase extraction. The determination was accomplished within 7.50 min via gradient elution. The values of lower limit of quantification were validated at 0.08 ng/mL for tenuifolin, 0.8 ng/mL for lactiflorin, 1.828 ng/mL for albiflorin, 2 ng/mL for paeoniflorin, gomisin B, and gomisin D, 10 ng/mL for schisandrin. The results from validations of other methods were all acceptable (RSD ≤ 14.94%). This is the first report on the identification and pharmacokinetics studies of components in Xiaoer Huanglong Granule. Moreover, the pharmacokinetic behavior of lactiflorin was studied for the first time. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jing Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Longtai You
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | | | - Na Sai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Huiming Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Mingyi Sun
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Mengru Cai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Hulinyue Peng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiao Liang
- Bionorica (Beijing) Technology Development Company, Beijing, China
| | - Xingbin Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jian Ni
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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Shi X, Deng Y, Kurtz NC, Sun Y, Xue M, Wu X. Concise and efficient total synthesis of oxyphyllacinol, yakuchione-A and yakuchione-B. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2034882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiang Shi
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Yu Deng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Nicole C. Kurtz
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, USA
| | - Yue Sun
- Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, Hefei, China
| | - Mingxing Xue
- Jinan Mingke Phytoochemicals Ltd, Jinan, P. R. China
| | - Xian Wu
- Department of Kinesiology, Nutrition, and Health, Miami University, Oxford, OH, USA
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MicroRNA-494-3p prevents liver fibrosis and attenuates hepatic stellate cell activation by inhibiting proliferation and inducing apoptosis through targeting TRAF3. Ann Hepatol 2022; 23:100305. [PMID: 33434689 DOI: 10.1016/j.aohep.2021.100305] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/03/2020] [Accepted: 12/03/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION AND OBJECTIVES Alcoholic hepatitis (AH) is characterized by high morbidity and mortality. MicroRNA-494-3p is possibly involved in the regulation of cancers, but its role in AH has been rarely studied. MATERIALS AND METHODS AH mice model and primarily cultured mice hepatic stellate cells (HSCs) model were constructed. Levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were analyzed by ELISA. Expressions of miRNAs, HSC activation-related proteins and fibrosis-related protein were analyzed by qRT-PCR and Western blot. Cell counting kit, colony formation and flow cytometry assays were used to detect cell viability, proliferation and apoptosis, respectively. The relationship between TNF receptor-associated factor 3 (TRAF3) and miR-494-3p was predicted and verified by TargetScan and dual-luciferase assay, respectively. Results of the above experiments were verified by rescue experiments using TRAF3. RESULTS Liver damage and miRNA expression were observed in AH mice, and AST and ALT levels were increased in serum of AH mice. MiR-494-3p was reduced in AH liver tissues, and it decreased the levels of α-SMA and fibrosis-related proteins. HSCs were isolated, and activating HSCs or upregulating miR-494-3p had a regulatory effect on the levels of miR-494-3p, HSC activation-related proteins and fibrosis-related proteins as well as cell viability, proliferation and apoptosis. In addition, miR-494-3p targeted TRAF3 and inhibited TRAF3 expression, while overexpressed TRAF3 promoted TRAF3 expression and rescued the regulatory effect of miR-494-3p on the levels of related proteins as well as cell viability, proliferation and apoptosis. CONCLUSIONS This study provided a novel mechanistic comprehension of the anti-fibrotic effect of miR-494-3p.
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Lyu W, Li Q, Li Q, Chen Y, Wang Y, Tang T, Feng F, Chi H, Li Y, Liu W, Sun H. Design, Bio-evaluation and Molecular Dynamics Simulation of Novel GSK-3β Inhibitors. Mol Inform 2021; 40:e2060031. [PMID: 34323388 DOI: 10.1002/minf.202060031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 06/23/2021] [Indexed: 12/26/2022]
Abstract
Glycogen synthase kinase 3 beta (GSK-3β) is considered as a promising drug target for the treatment of Alzheimer's disease (AD). In the present study, two compound libraries were selected for virtual screening based on pharmacophore models of GSK-3β to discover new inhibitors. Nine potential hits were retained for biological investigation and four of these compounds showed GSK-3β inhibitory activity (with the IC50 values in sub-micromolar range on GSK-3β). Compounds 6 and 9 have good safety. They do not have any significant in vitro cytotoxicity against PC12 and SH-SY5Y neuroblastoma cells at concentrations up to 90 μM. Based on the inhibitory activity and druggability properties, compound 8 is the preferred molecule, and it is a promising lead for the development of the GSK-3β inhibitors for reducing the abnormal hyperphosphorylation of tau protein and relieving AD.
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Affiliation(s)
- Weiping Lyu
- Department of Pharmaceutical Analysis, Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Qihang Li
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Qi Li
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Ying Chen
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yingming Wang
- Department of Pharmaceutical Analysis, Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Tongzhong Tang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Feng Feng
- Institute of Food and Pharmaceuticals Research, Jiangsu Food and Pharmaceuticals Science College, Huaian, 223003, People's Republic of China.,Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Heng Chi
- Food and Pharmaceutical Research Institute, Jiangsu Food and Pharmaceuticals Science College, Huaian, 223003, People's Republic of China
| | - Yuan Li
- Department of Pharmaceutical Engineering, Jiangsu Food and Pharmaceuticals Science College, Huaian, 223005, People's Republic of China
| | - Wenyuan Liu
- Department of Pharmaceutical Analysis, Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.,Zhejiang Center for Safety Study of Drug Substances (Industrial Technology Innovation Platform), Hangzhou, 310018
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
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An FM, Liu Z, Xuan XR, Liu QS, Wei CX. Sanweidoukou decoction, a Chinese herbal formula, ameliorates β-amyloid protein-induced neuronal insult via modulating MAPK/NF-κB signaling pathways: Studies in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2021; 273:114002. [PMID: 33705924 DOI: 10.1016/j.jep.2021.114002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/19/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The traditional Chinese medicine Sanweidoukou decoction (DK-3) was a classical formula for the treatment of nervous system diseases, recorded in the Chinese medical classic Sibu Yidian. AIM OF THE STUDY The present study is aim to investigate the neuroprotective effects of DK-3 on β-amyloid (Aβ) protein -induced AD-like pathologies and underlying molecular mechanisms both in vitro and in vivo studies. MATERIALS AND METHODS Hydrolysates of DK-3 were analyzed by LC-ESI-MS/MS. In vitro, MTT was utilized to examine effects of DK-3 on Aβ25-35-induced cytotoxicity in PC12 cells. In vivo, male Sprague-Dawley rats were administered with Aβ25-35 to induce AD-like pathologies and behavioral evaluations were conducted via Morris water maze (MWM) test. Histopathological changes were observed by Hematoxylin-eosin (HE) straining. Immunohistochemistry (IHC) was used to detect the tau hyperphosphorylation at Thr181 site. The expression levels of tau hyperphosphorylation, inflammation-related cytokines such as COX-2, iNOS, TNF-α, IL-1β, IL-6, the phosphorylated state of various mitogen-activated protein kinase (MAPK) signaling molecules (p38 MAPK, ERK, and JNK) and activation of nuclear factor κB (NF-κB) in vitro and in vivo were assessed via Western blot. RESULTS In vitro, DK-3 dose-dependently increased cell viability of PC12 cells induced by Aβ25-35. In vivo, DK-3 improved learning and memory abilities of Aβ25-35-induced AD-like rats. Moreover, DK-3 reversed hyperphosphorylation of tau and reduced the production of inflammation-related cytokines through significantly inhibited MAPK and NF-κB signaling pathways both in vitro and in vivo studies. CONCLUSION The present study suggested that the traditional Chinese medicine DK-3 may play a role in preventing and treating AD by reducing the hyperphosphorylation of tau protein and the expressions of inflammation-related cytokines via modulating the MAPK/NF-κB signaling pathways.
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Affiliation(s)
- Feng-Mao An
- Medical College, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia, PR China.
| | - Zheng Liu
- Medical College, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia, PR China.
| | - Xin-Ran Xuan
- Affiliated Hospitals, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia, PR China.
| | - Qing-Shan Liu
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Center on Translational Neuroscience, Minzu University of China, Beijing, PR China.
| | - Cheng-Xi Wei
- Medical College, Inner Mongolia University for Nationalities, Tongliao, 028000, Inner Mongolia, PR China.
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7
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Nikolakopoulou AM, Wang Y, Ma Q, Sagare AP, Montagne A, Huuskonen MT, Rege SV, Kisler K, Dai Z, Körbelin J, Herz J, Zhao Z, Zlokovic BV. Endothelial LRP1 protects against neurodegeneration by blocking cyclophilin A. J Exp Med 2021; 218:211750. [PMID: 33533918 PMCID: PMC7863706 DOI: 10.1084/jem.20202207] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 12/19/2022] Open
Abstract
The low-density lipoprotein receptor–related protein 1 (LRP1) is an endocytic and cell signaling transmembrane protein. Endothelial LRP1 clears proteinaceous toxins at the blood–brain barrier (BBB), regulates angiogenesis, and is increasingly reduced in Alzheimer’s disease associated with BBB breakdown and neurodegeneration. Whether loss of endothelial LRP1 plays a direct causative role in BBB breakdown and neurodegenerative changes remains elusive. Here, we show that LRP1 inactivation from the mouse endothelium results in progressive BBB breakdown, followed by neuron loss and cognitive deficits, which is reversible by endothelial-specific LRP1 gene therapy. LRP1 endothelial knockout led to a self-autonomous activation of the cyclophilin A–matrix metalloproteinase-9 pathway in the endothelium, causing loss of tight junctions underlying structural BBB impairment. Cyclophilin A inhibition in mice with endothelial-specific LRP1 knockout restored BBB integrity and reversed and prevented neuronal loss and behavioral deficits. Thus, endothelial LRP1 protects against neurodegeneration by inhibiting cyclophilin A, which has implications for the pathophysiology and treatment of neurodegeneration linked to vascular dysfunction.
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Affiliation(s)
- Angeliki Maria Nikolakopoulou
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Yaoming Wang
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Qingyi Ma
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Abhay P Sagare
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Axel Montagne
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Mikko T Huuskonen
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Sanket V Rege
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Kassandra Kisler
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Zhonghua Dai
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Jakob Körbelin
- Hubertus Wald Cancer Center, Department of Oncology and Hematology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joachim Herz
- Departments of Neuroscience, Molecular Genetics, and Neurology, University of Texas Southwestern Medical Center, Dallas, TX.,Center for Neuroscience, University of Freiburg, Freiburg, Germany
| | - Zhen Zhao
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
| | - Berislav V Zlokovic
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, CA
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