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Li S, Yan MQ, Wang ZY, Wang ZB, Kuang HX. Phytochemistry of Genus Buxus and Pharmacology of Cyclovirobuxine D. Chem Biodivers 2024:e202400494. [PMID: 38744674 DOI: 10.1002/cbdv.202400494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND Genus Buxus plants, commonly known as "boxwood", are widely distributed in China. The stems, branches, and leaves of the plant are traditionally used for rheumatism, toothache, chest pain, abdominal gas, and other diseases. However, an overview of the genus Buxus remains to be provided. PURPOSE To provide a scientific basis for the appropriate use and further research the recent advancements in the traditional usage, phytochemistry, and, pharmacology of Buxus. STUDY DESIGN Chemical composition and pharmacological correlation studies through a literature review. METHODS Between 1970 and 2023, the available data concerning Buxus was compiled from online scientific sources, such as Sci-Finder, PubMed, CNKI, Google Scholar, and the Chinese Pharmacopoeia. Plant names were verified from "The Plant List" (http://www.theplantlist.org/). RESULTS To date, 266 structurally diverse chemicals have been extracted and identified from the genus Buxus. Alkaloids constitute one of its primary bioactive phytochemicals. A summary of the channels of action of Cyclovirobuxine D on the cytotoxicity of a variety of cancers has been provided. CONCLUSION Numerous findings from contemporary phytochemical and pharmacological studies support the traditional use, facilitating its application. Further research is necessary to address various shortcomings, including the identification of the active ingredients and quality control of the genus Buxus.
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Affiliation(s)
- Sen Li
- Key Laboratory of Basic and Application Research of Beiyao, (Ministry of Education), Heilongjiang University of Chinese Medicine, 150040, Harbin, China
| | - Meng-Qi Yan
- Key Laboratory of Basic and Application Research of Beiyao, (Ministry of Education), Heilongjiang University of Chinese Medicine, 150040, Harbin, China
| | - Zhen-Yue Wang
- Key Laboratory of Basic and Application Research of Beiyao, (Ministry of Education), Heilongjiang University of Chinese Medicine, 150040, Harbin, China
| | - Zhi-Bin Wang
- Key Laboratory of Basic and Application Research of Beiyao, (Ministry of Education), Heilongjiang University of Chinese Medicine, 150040, Harbin, China
| | - Hai-Xue Kuang
- Key Laboratory of Basic and Application Research of Beiyao, (Ministry of Education), Heilongjiang University of Chinese Medicine, 150040, Harbin, China
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Tao Q, Xiao G, Wang T, Zhang L, Yu M, Peng L, Han L, Du X, Han W, He S, Lyu M, Zhu Y. Identification of linoleic acid as an antithrombotic component of Wenxin Keli via selective inhibition of p-selectin-mediated platelet activation. Biomed Pharmacother 2022; 153:113453. [DOI: 10.1016/j.biopha.2022.113453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/10/2022] [Accepted: 07/18/2022] [Indexed: 11/27/2022] Open
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Yang F, Ren L, Liu T, Lu X, Liu C, Yu Y, Chen Z, Long Y. Cyclovirobuxine D Brain-Targeted Liposomes Improve Cerebral Ischemia-Reperfusion Injury via Anti-Oxidant Stress and Activating Autophagy. J Biomed Nanotechnol 2022; 18:1146-1157. [PMID: 35854463 DOI: 10.1166/jbn.2022.3327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
One of the main issues faced by nervous system diseases is that drugs are difficult to enter the brain. The previous study suggested that Cyclovirobuxine D (CVBD) encapsulated in Angiopep-conjugated Polysorbate 80-Coated Liposomes showed a better brain targeting by intranasal administration. Therefore, this study concentrated on the protection and mechanism of CVBD brain-targeted liposomes in treating CIRI. Middle cerebral artery occlusion-reperfusion induced CIRI model rats to explore the protective effect of CVBD brain-targeted liposome on CIRI. Moreover, the protective effect of CVBD liposomes on OGD/R-injured HT22 cells was examined by cell fusion degree, cell proliferation curve and cell viability. OGD/R-injured HT22 cell was infected by mRFP-GFP-LC3 adenovirus. The autophagosome and autophagy flow were observed by laser confocal microscopy, and autophagy-related protein expressions were analyzed by Western blot. The classic autophagy inhibitor, chloroquine, was used to explore the autophagy-regulatedmechanism of CVBD brain-targeted liposomes in treating CIRI. CVBD liposomes increased cell viability and decreased ROS level, improved oxidative stress protein expressions and activated autophagy in vitro. Furthermore, CVBD liposomes reversed the decrease of cell viability, increase of ROS level, and reduction of protein expressions associated with anti-oxidative stress and autophagy induced by chloroquine. Collectively, CVBD liposomes inhibited CIRI via regulating oxidative stress and enhancing autophagy level in vivo and in vitro.
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Affiliation(s)
- Fang Yang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Lingzhi Ren
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Tuo Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Xiangyi Lu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Chang Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Yang Yu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Zhilian Chen
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong, China
| | - Yongling Long
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
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Appunni S, Gupta D, Rubens M, Ramamoorthy V, Singh HN, Swarup V. Deregulated Protein Kinases: Friend and Foe in Ischemic Stroke. Mol Neurobiol 2021; 58:6471-6489. [PMID: 34549335 DOI: 10.1007/s12035-021-02563-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/10/2021] [Indexed: 12/20/2022]
Abstract
Ischemic stroke is the third leading cause of mortality worldwide, but its medical management is still limited to the use of thrombolytics as a lifesaving option. Multiple molecular deregulations of the protein kinase family occur during the period of ischemia/reperfusion. However, experimental studies have shown that alterations in the expression of essential protein kinases and their pharmacological modulation can modify the neuropathological milieu and hasten neurophysiological recovery. This review highlights the role of key protein kinase members and their implications in the evolution of stroke pathophysiology. Activation of ROCK-, MAPK-, and GSK-3β-mediated pathways following neuronal ischemia/reperfusion injury in experimental conditions aggravate the neuropathology and delays recovery. Targeting ROCK, MAPK, and GSK-3β will potentially enhance myelin regeneration, improve blood-brain barrier (BBB) function, and suppress inflammation, which ameliorates neuronal survival. Conversely, protein kinases such as PKA, Akt, PKCα, PKCε, Trk, and PERK salvage neurons post-ischemia by mechanisms including enhanced toxin metabolism, restoring BBB integrity, neurotrophic effects, and apoptosis suppression. Certain protein kinases such as ERK1/2, JNK, and AMPK have favourable and unfavourable effects in salvaging ischemia-injured neurons. Targeting multiple protein kinase-mediated pathways simultaneously may improve neuronal recovery post-ischemia.
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Affiliation(s)
- Sandeep Appunni
- Department of Biochemistry, Government Medical College, Kozhikode, Kerala, India
| | - Deepika Gupta
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Himanshu Narayan Singh
- Department of Systems Biology, Columbia University Irving Medical Centre, New York City, NY, USA.
| | - Vishnu Swarup
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India.
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Ma xing shi gan decoction eliminates PM2.5-induced lung injury by reducing pulmonary cell apoptosis through Akt/mTOR/p70S6K pathway in rats. Biosci Rep 2021; 40:225703. [PMID: 32627816 PMCID: PMC7350893 DOI: 10.1042/bsr20193738] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 12/19/2022] Open
Abstract
The present study was designed to investigate the anti-apoptosis effect of Ma xing shi gan decoction (MXD) on PM2.5-induced lung injury via protein kinase B (Akt)/mTOR/p70S6K pathway. A UPLC-MS/MS system was introduced for component analysis of MXD. Rats were instilled with PM2.5 solution suspension intratracheally to induce acute lung injury. The rats were then orally administered with MXD (16, 8, and 4 g/kg) once a day for 7 consecutive days. The therapeutic effects of MXD were evaluated by Hematoxylin and Eosin (HE) staining. The apoptotic cell death was analyzed by terminal-deoxynucleotidyl transferase-mediated nick-end labeling (TUNEL) assay. The alterations in cytochrome c (Cytc) and cleaved-caspase-3 (C-caspase-3) were measured by immunohistochemistry (IHC). The expressions of Bax, B-cell lymphoma 2 (Bcl-2), p-Akt, p-mTOR and p-p70S6K were detected by Western blot. In vitro, PM2.5 exposure model was introduced in A549 cell, followed by incubation with MXD-medicated serum. Hoechst staining was used to determine apoptotic rate. The levels of Bax, Bcl-2, p-Akt, p-mTOR and p-p70S6K were detected by Western blot. Our results in vivo indicated that treatment with MXD decreased histopathological changes score, TUNEL-positive cells rate, expressions of Cytc and C-caspase-3. The in vitro results revealed that incubation with MXD-mediated serum decreased apoptotic rate. Both results in vivo and in vitro demonstrated that MXD inhibited pro-apoptotic protein Bax and promoted anti-apoptotic protein Bcl-2 expression. Likewise, MXD activated Akt/mTOR/p70S6K signal pathway, which was also confirmed by Western immunoblotting. In conclusion, MXD attenuates lung injury and the underlying mechanisms may relate to regulating the apoptosis via Akt/mTOR/p70S6K signaling pathway activation.
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Li F, Xu D, Hou K, Gou X, Lv N, Fang W, Li Y. Pretreatment of Indobufen and Aspirin and their Combinations with Clopidogrel or Ticagrelor Alleviates Inflammasome Mediated Pyroptosis Via Inhibiting NF-κB/NLRP3 Pathway in Ischemic Stroke. J Neuroimmune Pharmacol 2021; 16:835-853. [DOI: 10.1007/s11481-020-09978-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022]
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Sun Q, Shi P, Lin C, Ma J. Effects of Astragalus Polysaccharides Nanoparticles on Cerebral Thrombosis in SD Rats. Front Bioeng Biotechnol 2021; 8:616759. [PMID: 33425879 PMCID: PMC7785889 DOI: 10.3389/fbioe.2020.616759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/24/2020] [Indexed: 11/13/2022] Open
Abstract
Objective To investigate the efficacy and improvement of Astragalus polysaccharides (APS) and APS-nano on cerebral thrombosis in rats. Methods A total of 72 SD rats were randomly divided into NC group, Model group, APS-Nano group, and APS group. The cerebral thrombosis Model of SD rats was established by injecting compound thrombus inducer into the internal carotid artery. After 14 days of different intervention treatments, the TTC staining of brain tissue were performed, and A/left brain wet weight ratio, left brain/right brain wet weight ratio, blood rheology indexes, and coagulation function indexes of cerebral thrombosis were measured. ELISA was used to measure the contents of thromboxane 2 (TXB2), 6-keto-prostaglandin F1α (6-Keto-PGF1α), tissue factor (TF), neuron-specific enolase (NSE), S-100β, catenin (CAT), superoxide dismutase (SOD), as well as malondialdehyde (MDA). The binding specificity between miR-885-3p and TF was verified by the double-luciferin reporting experiment, and western blot was used to measure the expression level of TF protein. Results Compared with the Model group, after treatment with APS-nano or APS, the ratio of left brain/right brain wet weight decreased significantly. Whole blood low shear viscosity (WBLSV), whole blood high shear viscosity (WBHSV), plasma viscosity (PV), and erythrocyte aggregation index (Arbc) was all reduced. In addition, prothrombin time (PT) and activated partial thromboplastin time (APTT) were increased, and fibrinogen (FIB) content was decreased. The expression of TXB2, 6-Keto-PGF1α, and TF showed a downward trend. Similarly, the expression of TF protein was decreased. Furthermore, the contents of NSE and S-100β proteins were all decreased, whereas the contents of CAT and SOD were increased, and the contents of MDA was decreased. At the same dose, compared with APS treatment, APS-nano treatment had a significant inhibitory effect on cerebral thrombosis in rats. Finally, we found that TF is a target gene of miR-885-3p and specifically binds to miR-885-3p. Conclusion APS has a significant inhibitory effect on the formation of cerebral thrombosis induced by compound thrombus inducers. Moreover, APS-nano has a more significant inhibitory effect on cerebral thrombosis. Meanwhile, the regulation of miR-885-3p regulating TF expression may be related to the occurrence of cerebral thrombosis.
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Affiliation(s)
- Qian Sun
- Department of Neurology, Xinxiang Central Hospital, Xinxiang, China
| | - Pengqiang Shi
- Department of Neurosurgery, Xinxiang Central Hospital, Xinxiang, China
| | - Cuiling Lin
- Intensive Care Unit, Xinxiang Central Hospital, Xinxiang, China
| | - Jing Ma
- Department of Neurosurgery, Xinxiang Central Hospital, Xinxiang, China
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Cheng TF, Zhao J, Wu QL, Zeng HW, Sun YT, Zhang YH, Mi R, Qi XP, Zou JT, Liu AJ, Jin HZ, Zhang WD. Compound Dan Zhi tablet attenuates experimental ischemic stroke via inhibiting platelet activation and thrombus formation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 79:153330. [PMID: 32932202 DOI: 10.1016/j.phymed.2020.153330] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 08/09/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Compound Dan Zhi tablet (DZT) is a commonly used traditional Chinese medicine formula. It has been used for the treatment of ischemic stroke for many years in clinical. However, its pharmacological mechanism is unclear. PURPOSE The aim of the current study was to understand the protective effects and underlying mechanisms of DZT on ischemic stroke. METHODS Fifteen representative chemical markers in DZT were determined by ultra-performance liquid chromatography coupled with tandem quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). The protective effect of DZT against ischemic stroke was studied in a rat model of middle cerebral artery occlusion (MCAO), and the mechanism was further explored through a combination of network pharmacology and experimental verification. RESULTS Quantitative analysis showed that the contents of phenolic acids, furan sulfonic acids, tanshinones, flavonoids, saponins and phthalides in DZT were calculated as 7.47, 0.788, 0.627, 0.531 and 0.256 mg/g, respectively. Phenolic acids were the most abundant constituents. Orally administered DZT (1.701 g kg-1) significantly alleviated the infarct size and neurological scores in MCAO rats. The network analysis predicted that 53 absorbed active compounds in DZT-treated plasma targeted 189 proteins and 47 pathways. Ten pathways were associated with anti-platelet activity. In further experiments, DZT (0.4 and 0.8 mg mL-1) markedly inhibited in vitro prostaglandin G/H synthase 1 (PTGS1) activity. DZT (0.4 and 0.8 mg mL-1) significantly inhibited in vitro platelet aggregation in response to ADP or AA. DZT (113 and 226 mg kg-1, p.o.) also produced a marked inhibition of ADP- or AA-induced ex vivo platelet aggregation with a short duration of action. DZT decreased the level of thromboxane A2 (TXA2) in MCAO rats. In the carrageenan-induced tail thrombosis model and ADP-induced acute pulmonary thromboembolism mice model, DZT (113 and 226 mg kg-1, p.o.) prevented thrombus formation. Importantly, DZT (113 and 226 mg kg-1, p.o.) exhibited a low bleeding liability. CONCLUSION DZT protected against cerebral ischemic injury. The inhibition of TXA2 level, platelet aggregation and thrombosis formation might involve in the protective mechanism.
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Affiliation(s)
- Tao-Fang Cheng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jing Zhao
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qiu-Lin Wu
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Hua-Wu Zeng
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yu-Ting Sun
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yu-Hao Zhang
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Rui Mi
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Xiao-Po Qi
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Jing-Tao Zou
- Tonghua Huaxia Pharmaceutical Co., Ltd., Tonghua, 134100, China
| | - Ai-Jun Liu
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
| | - Hui-Zi Jin
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Wei-Dong Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
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A new horizon for the steroidal alkaloid cyclovirobuxine D (huangyangning) and analogues: Anticancer activities and mechanism of action. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2020. [DOI: 10.1016/j.jtcms.2020.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yin Q, Zhao B, Zhu J, Fei Y, Shen W, Liang B, Zhu X, Li Y. JLX001 improves myocardial ischemia-reperfusion injury by activating Jak2-Stat3 pathway. Life Sci 2020; 257:118083. [PMID: 32673665 DOI: 10.1016/j.lfs.2020.118083] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/13/2022]
Abstract
AIMS To investigate the preclinical pharmacodynamics and mechanism of JLX001 against myocardial ischemia reperfusion (MI/R) for clinical application. MATERIALS AND METHODS In vivo, SD rats were given intragastric administration for 5 days, and the MI/R model was established by ligating/releasing the left anterior descending coronary artery. In vitro, the oxygen-glucose deprivation/reperfusion (OGD/R) model was established after the drug was pre-incubated for 24 h in H9C2 cells. The infract size was determined by TTC staining. Left ventricular function of MI/R rats was detected by echocardiography. The level of histopathological score was determined by hematoxylin-eosin (HE) staining. The level of superoxide dismutase (SOD), malondialdehyde (MDA), creatine kinase (CK), lactic dehydrogenase (LDH), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) were determined by relevant kits. The level of apoptosis was measured by Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and Hoechst staining. The expression of p-Jak2, p-Stat3, Bax, Bcl-2, TNF-α, IL-1β protein were determined by western blot. KEY FINDINGS JLX001 can significantly improve left ventricular function, reduce myocardial infract size, histopathological score, the level of MDA, CK, LDH, TNF-α, IL-1β and the expression of Bax protein, significantly increase the activity of SOD, Bcl-2 protein expression, p-Jak2 protein expression, p-Stat3 protein expression in rat heart tissues and H9C2 cells. These effects can be reversed by AG490 which is a specific inhibitor of Jak2-Stat3 pathway. SIGNIFICANCE JLX001 can alleviate MI/R injury by inhibiting myocardial apoptosis, inflammation, and oxidative stress via Jak2-Stat3 pathway in vivo and in vitro.
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Affiliation(s)
- Qiyang Yin
- State key laboratory of Nature Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Bo Zhao
- State key laboratory of Nature Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jianping Zhu
- State key laboratory of Nature Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yuxiang Fei
- State key laboratory of Nature Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Weiyang Shen
- School of Sciences, China Pharmaceutical University, Nanjing 210009, PR China
| | - Bingwen Liang
- Jiangsu Jinglixin Pharmaceutical Technology Company Limited, Nanjing 211100, PR china
| | - Xiong Zhu
- School of Sciences, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Yuman Li
- State key laboratory of Nature Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China.
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Zhou L, Ao LY, Yan YY, Li WT, Ye AQ, Li CY, Shen WY, Liang BW, Xiong-Zhu, Li YM. JLX001 Ameliorates Ischemia/Reperfusion Injury by Reducing Neuronal Apoptosis via Down-Regulating JNK Signaling Pathway. Neuroscience 2019; 418:189-204. [PMID: 31487541 DOI: 10.1016/j.neuroscience.2019.08.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 01/26/2023]
Abstract
JLX001, a novel compound with similar structure with cyclovirobuxine D (CVB-D), has been proved to exert therapeutical effects on permanent focal cerebral ischemia. However, the protective effects of JLX001 on cerebral ischemia/reperfusion (I/R) injury and its anti-apoptotic effects have not been reported. We investigated the efficacy of JLX001 in two pharmacodynamic tests (pre-treatment test and post-treatment) with rats subjected to middle cerebral artery occlusion/reperfusion (MCAO/R). The pharmacodynamic tests demonstrated that JLX001 ameliorated I/R injury by reducing infarct sizes and brain edema. The results of Morris water maze, neurological scores, cylinder test and posture reflex test implied that JLX001 improved the learning, memory and motor ability after MCAO/R in the long term. Anti-apoptotic effects of JLX001 and its regulation of cytosolic c-Jun N-terminal Kinases (JNKs) signal pathway were confirmed in vivo by co-immunofluorescence staining and western immunoblotting. Furthermore, primary cortical neuron cultures were prepared and exposed to oxygen glucose deprivation/reoxygenation (OGD/R) for in vitro studies. Cytotoxicity test and mitochondrial membrane potential (MMP) test showed that JLX001 enhanced cell survival rate and maintained MMP. Flow cytometry and TdT-mediated dUTP-X nick end labeling (TUNEL) staining demonstrated the anti-apoptotic effects of JLX001 in vitro. Likewise, JLX001 regulated JNK signal pathway in vivo, which was also confirmed by western immunoblotting. Collectively, this study presents the first evidence that JLX001 exerted protective effects against I/R injury by reducing neuronal apoptosis via down-regulating JNK signaling pathway.
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Affiliation(s)
- Lin Zhou
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Lu-Yao Ao
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yun-Yi Yan
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Wan-Ting Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - An-Qi Ye
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Cheng-Yuan Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Wei-Yang Shen
- School of Sciences, China Pharmaceutical University, Nanjing 210009, PR China
| | - Bing-Wen Liang
- Jiangsu Jinglixin Pharmaceutical Technology Company Limited, Nanjing 211100, PR China
| | - Xiong-Zhu
- Jiangsu Jinglixin Pharmaceutical Technology Company Limited, Nanjing 211100, PR China; Medicine & Chemical Institute, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Yun-Man Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China.
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Ao LY, Li WT, Zhou L, Yan YY, Ye AQ, Liang BW, Shen WY, Zhu X, Li YM. Therapeutic effects of JLX-001 on ischemic stroke by inducing autophagy via AMPK-ULK1 signaling pathway in rats. Brain Res Bull 2019; 153:162-170. [PMID: 31472184 DOI: 10.1016/j.brainresbull.2019.08.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/10/2019] [Accepted: 08/26/2019] [Indexed: 11/16/2022]
Abstract
(3β,5α,16α,20S)-4,4,14-trimethyl-3,20-bis(methylamino)-9,19-cyclopregnan-16-ol-dihydrochloride (JLX-001), a structural analogue of cyclovirobuxine D (CVB-D), is a novel compound from synthesis. This study aims to confirm the therapeutic effects of JLX001 on ischemic stroke (IS) and research its induction of autophagy function via 5'-AMP-activated protein kinase (AMPK)-Human Serine/threonine-protein kinase (ULK1) signaling pathway activation. The therapeutic effects of JLX001 were evaluated by infarct sizes, brain edema, neurological scores and proportion of apoptotic neurons in Sprague-Dawley (SD) rats with middle cerebral artery occlusion/reperfusion (MCAO/R). The number of autophagosomes was obtained by transmission electron microscopy. The expression of LC3-II was measured by immunofluorescence. p-AMPK and activated ULK1 were detected by western blots. Results showed that JLX001 treatment markedly alleviated cerebral infarcts, edema, neurological scores and proportion of apoptotic neurons in MCAO/R rats. The number of autophagosomes was increased, accompanying with the increased expressions of LC3-II, p-AMPK and ULK1. In summary, JLX001 attenuates cerebral ischemia injury and the underlying mechanisms may relate to inducing autophagy via AMPK-ULK1 signaling pathway activation.
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Affiliation(s)
- Lu-Yao Ao
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Wan-Ting Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Lin Zhou
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Yun-Yi Yan
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - An-Qi Ye
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Bing-Wen Liang
- Jiangsu Jinglixin Pharmaceutical Technology Company Limited, Nanjing, 211100, PR China
| | - Wei-Yang Shen
- School of Sciences, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Xiong Zhu
- Jiangsu Jinglixin Pharmaceutical Technology Company Limited, Nanjing, 211100, PR China.
| | - Yun-Man Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China.
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Vicagrel enhances aspirin-induced inhibition of both platelet aggregation and thrombus formation in rodents due to its decreased metabolic inactivation. Biomed Pharmacother 2019; 115:108906. [DOI: 10.1016/j.biopha.2019.108906] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/12/2019] [Accepted: 04/22/2019] [Indexed: 02/07/2023] Open
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JLX001 Modulated the Inflammatory Reaction and Oxidative Stress in pMCAO Rats via Inhibiting the TLR2/4-NF-κB Signaling Pathway. Neurochem Res 2019; 44:1924-1938. [DOI: 10.1007/s11064-019-02826-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/13/2019] [Accepted: 06/10/2019] [Indexed: 12/13/2022]
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