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Das A, Jana G, Sing S, Basu A. Insights into the interaction and inhibitory action of palmatine on lysozyme fibrillogenesis: Spectroscopic and computational studies. Int J Biol Macromol 2024; 268:131703. [PMID: 38643915 DOI: 10.1016/j.ijbiomac.2024.131703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Interaction under amyloidogenic condition between naturally occurring protoberberine alkaloid palmatine and hen egg white lysozyme was executed by adopting spectrofluorometric and theoretical molecular docking and dynamic simulation analysis. In spetrofluorometric method, different types of experiments were performed to explore the overall mode and mechanism of interaction. Intrinsic fluorescence quenching of lysozyme (Trp residues) by palmatine showed effective binding interaction and also yielded different binding parameters like binding constant, quenching constant and number of binding sites. Synchronous fluorescence quenching and 3D fluorescence map revealed that palmatine was able to change the microenvironment of the interacting site. Fluorescence life time measurements strongly suggested that this interaction was basically static in nature. Molecular docking result matched with fluorimetric experimental data. Efficient drug like interaction of palmatine with lysozyme at low pH and high salt concentration prompted us to analyze its antifibrillation potential. Different assays and microscopic techniques were employed for detailed analysis of lysozyme amyloidosis.Thioflavin T(ThT) assay, Congo Red (CR) assay, 8-anilino-1-naphthalenesulfonic acid (ANS) assay, Nile Red (NR) assay, anisotropy and intrinsic fluorescence measurements confirmed that palmatine successfully retarded and reduced lysozyme fibrillation. Dynamic light scattering (DLS) and atomic force microscopy (AFM) further reiterated the excellent antiamyloidogenic potency of palmatine.
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Affiliation(s)
- Arindam Das
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, India
| | - Gouranga Jana
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, India
| | - Shukdeb Sing
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, India
| | - Anirban Basu
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, India.
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Zuo H, Zhou W, Chen Y, Zhou B, Wang Z, Huang S, Alinejad T, Chen C. Palmatine Alleviates Particulate Matter-Induced Acute Lung Injury by Inhibiting Pyroptosis via Activating the Nrf2-Related Pathway. Inflammation 2024:10.1007/s10753-024-02009-2. [PMID: 38598115 DOI: 10.1007/s10753-024-02009-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/08/2024] [Accepted: 03/19/2024] [Indexed: 04/11/2024]
Abstract
Particulate matter (PM) induces and enhances oxidative stress and inflammation, leading to a variety of respiratory diseases, including acute lung injury. Exploring new treatments for PM-induced lung injury has long been of interest to researchers. Palmatine (PAL) is a natural extract derived from plants that has been reported in many studies to alleviate inflammatory diseases. Our study was designed to explore whether PAL can alleviate acute lung injury caused by PM. The acute lung injury model was established by instilling PM (4 mg/kg) into the airway of mice, and PAL (50 mg/kg and 100 m/kg) was administrated orally as the treatment groups. The effect and mechanism of PAL treatment were examined by immunofluorescence, immunohistochemistry, Western Blotting, ELISA, and other experiments. The results showed that oral administration of PAL (50 mg/kg and 100 m/kg) could significantly alleviate lung inflammation and acute lung injury caused by PM. In terms of mechanism, we found that PAL (50 mg/kg) exerts anti-inflammatory and anti-damage effects mainly by enhancing the activation of the Nrf2-related antioxidant pathway and inhibiting the activation of the NLRP3-related pyroptosis pathway in mice. These mechanisms have also been verified in our cell experiments. Further cell experiments showed that PAL may reduce intracellular reactive oxygen species (ROS) by activating Nrf2-related pathways, thereby inhibiting the activation of NLRP3-related pyroptosis pathway induced by PM in Beas-2B cell. Our study suggests that PAL can be a new option for PM-induced acute lung injury.
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Affiliation(s)
- Hao Zuo
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Wanting Zhou
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yijing Chen
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Binqian Zhou
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Zhengkai Wang
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Department of Pulmonary and Critical Care Medicine, the, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China
| | - Shuai Huang
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Tahereh Alinejad
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Institute of Cell Growth Factor, and Brain Health), Wenzhou Medical University, VisionWenzhou, China
| | - Chengshui Chen
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China.
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
- Department of Pulmonary and Critical Care Medicine, the, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China.
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Ji W, Huo Y, Zhang Y, Qian X, Ren Y, Hu C, Zhang J. Palmatine inhibits expression fat mass and obesity associated protein (FTO) and exhibits a curative effect in dextran sulfate sodium (DSS)-induced experimental colitis. Int Immunopharmacol 2024; 132:111968. [PMID: 38579565 DOI: 10.1016/j.intimp.2024.111968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUND Ulcerative colitis (UC) is an inflammatory disease whose pathogenesis and mechanisms have not been fully described. The m6A methylation modification is a general mRNA modification in mammalian cells and is closely associated with the onset and progression of inflammatory bowel disease (IBD). Palmatine (PAL) is a biologically active alkaloid with anti-inflammatory and protective effects in animal models of colitis. Accordingly, we examined the role of PAL on colitis by regulating N6-methyladenosine (m6A) methylation. METHODS A rat experimental colitis model was established by 5 % dextran sulfate sodium (DSS) in drinking water for seven days, then PAL treatment was administered for seven days. The colonic tissue pathology was assessed using hematoxylin-eosin (HE) and disease activity index (DAI). In in vitro studies, a human, spontaneously immortalized non-cancerous colon mucosal epithelial cell line (NCM460) was exposed to 2 % DSS and treated with PAL and cell viability was assayed using Cell Counting Kit-8 (CCK-8). The levels of tumor necrosis factor α (TNF-α), interleukin (IL)-1β, IL-6, and IL-8 were detected by enzyme-linked immunosorbent assay (ELISA) kits. The level of Zonula occludens-1 (ZO-1) was dectected by immunofluorescence. Transepithelial electrical resistance (TEER) of cells was also assessed. The methyltransferase-like 3 (METTL3), METTL14, AlkB homologate 5 (ALKBH5), and fat mass and obesity-associated protein (FTO) expression levels were assessed by western blotting. The localized expression of m6A was measured by immunofluorescence. RESULTS PAL significantly prevented bodyweight loss and shortening of the colon in experimental colitis rats, as well as decreasing the DAI and histological damage scores. Furthermore, PAL inhibited the levels of inflammatory factors (TNF-α, IL-6, IL-8, and IL-1β) in both DSS treated rats and NCM460 cells. In addition, PAL enhanced the expression level of ZO-1, and increased the transepithelial electrical resistance to repaire intestinal barrier dysfunction. Colitis occurred due to decreased m6A levels, and the increased FTO expression led to a colitis phenotype. PAL markedly enhanced the METTL3 and METTL14 expression levels while decreasing ALKBH5 and FTO expression levels. CONCLUSIONS The findings demonstrated that PAL improved DSS-induced experimental colitis. This effect was associated with inhibiting FTO expression and regulating m6A methylation.
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Affiliation(s)
- Wanli Ji
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China.
| | - Yan Huo
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China.
| | - Yifan Zhang
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China.
| | - Xiaojing Qian
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yi Ren
- Shanghai Putuo District Hospital of Traditional Chinese Medicine, Shanghai 200062, China.
| | - Cheng Hu
- Science and Technology Experiment Center, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jiaqi Zhang
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, China.
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Lin S, Zhang S, Zhan A, Feng J, Yang Q, Li T, Liu Z, Mo Q, Fan H, Wang K, Wang L. Palmatine alleviates cardiac fibrosis by inhibiting fibroblast activation through the STAT3 pathway. Eur J Pharmacol 2024; 967:176395. [PMID: 38350592 DOI: 10.1016/j.ejphar.2024.176395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/15/2024]
Abstract
Cardiac fibrosis, the hallmark of cardiovascular disease, is characterized by excessive deposition of extracellular matrix in the heart. Emerging evidence indicates that cardiac fibroblasts (CFs) play pivotal roles in driving cardiac fibrosis. However, due to incomplete insights into CFs, there are limited effective approaches to prevent or reverse cardiac fibrosis currently. Palmatine, a protoberberine alkaloid extracted from traditional Chinese botanical remedies, possesses diverse biological effects. This study investigated the potential therapeutic value and mechanism of palmatine against cardiac fibrosis. Adult male C57BL/6 mice were treated with vehicle, isoproterenol (ISO), or ISO plus palmatine for one week. After echocardiography assessment, mice hearts were collected for histopathology, real-time polymerase chain reaction, and Western blot analyses. Primary rat CFs were utilized in vitro. Compared to control, ISO-treated mice exhibited cardiac hypertrophy and structural abnormalities; however, treatment with palmatine ameliorated these effects of ISO. Moreover, palmatine treatment mitigated ISO-induced cardiac fibrosis. Network pharmacology and molecular docking analysis showed that palmatine strongly binds the regulators of cardiac fibrosis including signal transducer and activator of transcription 3 (STAT3) and mammalian target of rapamycin. Furthermore, palmatine reduced the elevated fibrotic factor expressions and overactivated STAT3 induced by ISO, Transformed growth factor β1 (TGF-β1), or interleukin-6 both in vivo and in vitro. Additionally, blocking STAT3 suppressed the TGF-β1-induced CF activation. Collectively, these data demonstrated that palmatine attenuated cardiac fibrosis partly by inhibiting fibroblast activation through the STAT3 pathway. This provides an experimental basis for the clinical treatment of cardiac fibrosis with palmatine.
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Affiliation(s)
- Shaoling Lin
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Shengxi Zhang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Guangdong Hydropower Group Hospital, Guangzhou, 511340, China
| | - Angyu Zhan
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jiaojiao Feng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qianqian Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Tongjun Li
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zijian Liu
- Department of Emergency, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; NHC Key Laboratory of Assisted Circulation and Vascular Diseases (Sun Yat-sen University), Guangzhou, 510080, China
| | - Quqian Mo
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Hui Fan
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Keke Wang
- Department of Emergency, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; NHC Key Laboratory of Assisted Circulation and Vascular Diseases (Sun Yat-sen University), Guangzhou, 510080, China.
| | - Lexun Wang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glycolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Key Unit of Modulating Liver to Treat Hyperlipemia, State Administration of Traditional Chinese Medicine, Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Nieoczym D, Marszalek-Grabska M, Szalak R, Kundap U, Kaczor AA, Wrobel TM, Kosheva N, Komar M, Abram M, Esguerra CV, Samarut E, Pieróg M, Jakubiec M, Kaminski K, Kukula-Koch W, Gawel K. A comprehensive assessment of palmatine as anticonvulsant agent - In vivo and in silico studies. Biomed Pharmacother 2024; 172:116234. [PMID: 38325264 DOI: 10.1016/j.biopha.2024.116234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
Previously, we demonstrated that palmatine (PALM) - an isoquinoline alkaloid from Berberis sibrica radix, exerted antiseizure activity in the pentylenetetrazole (PTZ)-induced seizure assay in larval zebrafish. The aim of the present study was to more precisely characterize PALM as a potential anticonvulsant drug candidate. A range of zebrafish and mouse seizure/epilepsy models were applied in the investigation. Immunostaining analysis was conducted to assess the changes in mouse brains, while in silico molecular modelling was performed to determine potential targets for PALM. Accordingly, PALM had anticonvulsant effect in ethyl 2-ketopent-4-enoate (EKP)-induced seizure assay in zebrafish larvae as well as in the 6 Hz-induced psychomotor seizure threshold and timed infusion PTZ tests in mice. The protective effect in the EKP-induced seizure assay was confirmed in the local field potential recordings. PALM did not affect seizures in the gabra1a knockout line of zebrafish larvae. In the scn1Lab-/- zebrafish line, pretreatment with PALM potentiated seizure-like behaviour of larvae. Repetitive treatment with PALM, however, did not reduce development of PTZ-induced seizure activity nor prevent the loss of parvalbumin-interneurons in the hippocampus of the PTZ kindled mice. In silico molecular modelling revealed that the noted anticonvulsant effect of PALM in EKP-induced seizure assay might result from its interactions with glutamic acid decarboxylase and/or via AMPA receptor non-competitive antagonism. Our study has demonstrated the anticonvulsant activity of PALM in some experimental models of seizures, including a model of pharmacoresistant seizures induced by EKP. These results indicate that PALM might be a suitable new drug candidate but the precise mechanism of its anticonvulsant activity has to be determined.
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Affiliation(s)
- Dorota Nieoczym
- Chair of Animal Physiology and Pharmacology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka Str. 19, 20-033 Lublin, Poland
| | - Marta Marszalek-Grabska
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland
| | - Radoslaw Szalak
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Uday Kundap
- Research Center of the University of Montreal Hospital Center (CRCHUM), Department of Neurosciences, Université de Montréal, Montréal, QC H2X 0A9, Canada; Canada East Spine Centre, Saint John Regional Hospital, Department of Spine and Orthopaedics surgery, Horizon Health Network, Saint John, NB E2L 4L4, Canada
| | - Agnieszka A Kaczor
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodżki St., PL-20093 Lublin, Poland; School of Pharmacy, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Tomasz M Wrobel
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodżki St., PL-20093 Lublin, Poland
| | - Nataliia Kosheva
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland
| | - Malgorzata Komar
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Michal Abram
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Camila V Esguerra
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway, University of Oslo, Gaustadalleen 21, Forskningsparken, 0349 Oslo, Norway
| | - Eric Samarut
- Research Center of the University of Montreal Hospital Center (CRCHUM), Department of Neurosciences, Université de Montréal, Montréal, QC H2X 0A9, Canada; Neurosciences Department, University of Montreal, Montreal, QC, Canada
| | - Mateusz Pieróg
- Chair of Animal Physiology and Pharmacology, Institute of Biology and Biochemistry, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka Str. 19, 20-033 Lublin, Poland
| | - Marcin Jakubiec
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Krzysztof Kaminski
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, Chodzki Str. 1, 20-093 Lublin, Poland
| | - Kinga Gawel
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego Str. 8b, 20-090 Lublin, Poland.
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Yang WL, Zhang CY, Ji WY, Zhao LL, Yang FY, Zhang L, Cao X. Berberine Metabolites Stimulate GLP-1 Secretion by Alleviating Oxidative Stress and Mitochondrial Dysfunction. Am J Chin Med 2024; 52:253-274. [PMID: 38351702 DOI: 10.1142/s0192415x24500113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Berberine (BBR) is a principal component of Rhizoma coptidis known for its therapeutic potential in treating diseases such as type 2 diabetes mellitus (T2DM) and obesity. Despite the trace levels of BBR in plasma, it's believed that its metabolites play a pivotal role in its biological activities. While BBR is recognized to promote GLP-1 production in intestinal L cells, the cytoprotective effects of its metabolites on these cells are yet to be explored. The present study investigates the effects of BBR metabolites on GLP-1 secretion and the underlying mechanisms. Our results revealed that, out of six BBR metabolites, berberrubine (BBB) and palmatine (PMT) significantly increased the production and glucose-stimulated secretion of GLP-1 in GLUTag cells. Notably, both BBB and PMT could facilitate GLP-1 and insulin secretion and enhance glucose tolerance in standard mice. Moreover, a single dose of PMT could markedly increase plasma GLP-1 and improve glucose tolerance in mice with obesity induced by a high-fat diet. In palmitic acid or TNF[Formula: see text]-treated GLUTag cells, BBB and PMT alleviated cell death, oxidative stress, and mitochondrial dysfunction. Furthermore, they could effectively reverse inflammation-induced inhibition of the Akt signaling pathway. In general, these insights suggest that the beneficial effects of orally administered BBR on GLP-1 secretion are largely attributed to the pharmacological activity of BBB and PMT by their above cytoprotective effects on L cells, which provide important ideas for stimulating GLP-1 secretion and the treatment of T2DM.
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Affiliation(s)
- Wei-Li Yang
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Chen-Yang Zhang
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Wen-Yi Ji
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Li-Li Zhao
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Fang-Yuan Yang
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Lin Zhang
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
| | - Xi Cao
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P. R. China
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Xu Y, Shen B, Pan X, Liu C, Wang Y, Chen X, Wang T, Chen G, Chen J. Palmatine ameliorated lipopolysaccharide-induced sepsis-associated encephalopathy mice by regulating the microbiota-gut-brain axis. Phytomedicine 2024; 124:155307. [PMID: 38181529 DOI: 10.1016/j.phymed.2023.155307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Sepsis-associated encephalopathy (SAE), a common neurological complication from sepsis, is widespread among patients in intensive care unit and is linked to substantial morbidity and mortality rates, thus posing a substantial menace to human health. Due to the intricate nature of SAE's pathogenesis, there remains a dearth of efficacious therapeutic protocols, encompassing pharmaceutical agents and treatment modalities, up until the present time. Palmatine exhibits distinctive benefits in the regulation of inflammation for the improvement of sepsis. Nevertheless, the precise functions of palmatine in treating SAE and its underlying mechanism have yet to be elucidated. PURPOSE This study aimed to evaluate efficiency of palmatine in SAE mice and its underlying mechanisms. STUDY DESIGN AND METHODS Behavioral experiments, percent survival rate analysis, histological analysis, immunofluorescence staining, ELISA analysis, were performed to evaluate the efficiency of palmatine in SAE mice. Quantibody® mouse inflammation array glass chip was performed to observe the effects of palmatine on inflammation storm in SAE mice. Real-time quantitative and western blotting analyzes were employed to examine the expression of relevant targets in the Notch1/nuclear factor-kappa B (NF-κB) pathway. Finally, brain tissues metabolomics-based analyzes were performed to detect the differentially expressed metabolites and metabolic pathways. The fecal samples were subjected to microbial 16S rRNA analysis and untargeted metabolomics analysis in order to identify the specific flora and metabolites associated with SAE, thereby further investigating the mechanism of palmatine in SAE mice. RESULTS Our results showed that palmatine significantly improved nerve function, reduced cell apoptosis in brain tissue, and decreased inflammatory cytokine levels in SAE induced-LPS mice. Meanwhile, our results demonstrate the potential of palmatine in modulating key components of the Notch1/NF-κB pathway, enhancing the expression of tight junction proteins, improving intestinal permeability, promoting the growth of beneficial bacteria (such as Lachnospiraceae_NK4A136_group), inhibiting the proliferation of harmful bacteria (such as Escherichia-Shigella), and mitigating metabolic disorders. Ultimately, these observed effects contribute to the therapeutic efficacy of palmatine in treating SAE. CONCLUSION The findings of our study have provided confirmation regarding the efficacy of palmatine in the treatment of SAE, thereby establishing a solid foundation for further exploration into SAE therapy and the advancement and investigation of palmatine.
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Affiliation(s)
- Yubin Xu
- Department of Pharmacy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang 318000, PR China
| | - Bixin Shen
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, PR China
| | - Xusheng Pan
- Department of Pharmacy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang 318000, PR China
| | - Chang Liu
- College of pharmacy, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, 110847, PR China
| | - Yingyue Wang
- College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300000, PR China
| | - Xiaowei Chen
- College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300000, PR China
| | - Ting Wang
- Department of Pharmacy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang 318000, PR China; School of Medicine, Taizhou University, Taizhou, Zhejiang 318000, PR China.
| | - Guirong Chen
- College of pharmacy, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, 110847, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, 110847, PR China.
| | - Jing Chen
- Department of Pharmacy, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Lin Hai, Zhejiang, 317000, PR China.
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Erhunse N, Kumari S, Anmol, Singh P, Omoregie ES, Singh AP, Sharma U, Sahal D. Annickia affinis (Exell) Versteegh & Sosef methanol stem bark extract, potent fractions and isolated Berberine alkaloid target both blood and liver stages of malaria parasites. J Ethnopharmacol 2024; 319:117269. [PMID: 37813288 DOI: 10.1016/j.jep.2023.117269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Having identified Annickia affinis as the most potent antiplasmodial plant constituent in a hepta-herbal Agbo-iba (HHA) formula commonly used to manage malaria in Benin city, Nigeria, we have in this study attempted to identify the specialized metabolites responsible for antiplasmodial activity of A. affinis through anti-blood stage malaria parasite activity guided isolation of potent molecules from its stem bark methanol extract. After that, phenotypic effects, including stage-specific kill kinetics, were investigated. Further, the crude extract, its potent fractions, and specialized metabolites were also tested against the liver-stage malaria parasite. MATERIALS AND METHODS A. affinis was subjected to molecular PCR-based analysis to confirm its identity. Thereafter, extraction of its stem bark with methanol was carried out. Alkaloid enriched fractions from this stem bark extract were obtained using the acid-base-solvent extraction method. These alkaloid-enriched fractions were subjected to various chromatographic techniques that led to the isolation of two protoberberine alkaloids identified as berberine and palmatine based on NMR and mass spectrometry analysis. The efficacy of crude extract, fractions and purified alkaloids was tested against the malaria parasite's blood and liver stages, respectively. RESULTS AND DISCUSSION Annickia affinis methanol extract, fractions, and the isolated protoberberine alkaloids showed excellent antiplasmodial activity with good selectivity against blood-stage malaria parasite. Thus, their IC50 against various strains of the parasite ranged from 0.95 to 18.65 μg/ml, while CC50 against Human embryonic kidney (HEK) and the human hepatoma (HUH-7) cell lines ranged between 10 and > 100 μg/ml. Interestingly, the crude extract and the alkaloid enriched fractions showed promising activity against the liver-stage malaria parasite. Between berberine and palmatine isolated from the potent fractions, only the former showed ∼100% and 90% inhibitions of liver stage parasite at 5 μg/ml and 1 μg/ml, respectively, while the latter showed no inhibition even at 20 μg/ml. CONCLUSION This study reports that the ethnomedicinal use of HHA to manage malaria can be attributed to the presence of promising antiplasmodial protoberberine alkaloids together with synergistic effects via either enhancement of bioavailability or improved pharmacokinetics by other phytoconstituent(s) coming from other HHA constituent plants. The protoberberine alkaloids isolated have been identified as fast-acting antiplasmodial agents, with activity against all erythrocytic stages of the malaria parasite. Further, A. affinis methanol stembark extract and the protoberberine alkaloid berberine isolated from it also displayed excellent activity (>90% inhibition at 1 μg/ml) against the liver-stage malaria parasite. A. affinis and HHA can thus be useful as both liver-stage prophylactic and blood-stage curative agents.
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Affiliation(s)
- Nekpen Erhunse
- Malaria Drug Discovery Research Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India; Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin city, Nigeria
| | - Surekha Kumari
- Chemical Technology Division CSIR-IHBT, Palampur, Himachal Pradesh, 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anmol
- Chemical Technology Division CSIR-IHBT, Palampur, Himachal Pradesh, 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pooja Singh
- Infectious Diseases Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhiz, 110067, India
| | | | - Agam Prasad Singh
- Infectious Diseases Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhiz, 110067, India
| | - Upendra Sharma
- Chemical Technology Division CSIR-IHBT, Palampur, Himachal Pradesh, 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Dinkar Sahal
- Malaria Drug Discovery Research Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India.
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Bisht A, Singh L, Singh B, Bisht M, Pandey A, Bhatt ID, Pande V. In vitro Propagation of Endemic Species Mahonia Jaunsarensis Ahrendt Through Callus Culture. Appl Biochem Biotechnol 2024; 196:113-128. [PMID: 37099127 DOI: 10.1007/s12010-023-04524-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 04/27/2023]
Abstract
Mahonia jaunsarensis Ahrendt (Family Berberidaceae) an endemic species was successfully propagated in vitro. An efficient propagation protocol has been developed first time. The callus cultures were established from leaf explants on Murashige and Skoog (MS) medium supplemented with 2,4-Dichlorophenoxyacetic acid (2,4-D; 1 µM) and resulted 70% callus induction with green compact callus. When callus was transferred to MS medium containing Thidiazuron (TDZ; 0.75 µM), maximum average number of shoot (3.06) produced but shoot length (3.37 cm) and average leaf number (2.87) was increased upon transfer to MS medium containing N6-benzylaminopurine (BA; 6.0 µM) plus α-naphthalene acetic acid (NAA; 0.5 µM). In MS medium containing indole-3-butyric acid (IBA; 0.01 µM), the maximum rooting percentage (56%) and average root number (2.56) per shoot and root length (3.33 cm) were recorded. The rooted plantlets transferred in vermiculite + garden soil + farmyard manure (1:1:1) with maximum (55%) survival percentage under greenhouse condition. The phytochemical analysis of leaves obtained from tissue culture-raised plants revealed significantly higher levels of alkaloids (berberine and palmatine) than those obtained from wild plants. Similar trends were observed for antioxidant and antimutagenic activities. Results of this study offer a baseline for the conservation and sustainable utilization strategies for M. jaunsarensis.
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Affiliation(s)
- Arti Bisht
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India
| | - Laxman Singh
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India
| | - Basant Singh
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India
| | - Monika Bisht
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India
| | - Aseesh Pandey
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India.
| | - Indra D Bhatt
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora, 263643, Uttarakhand, India.
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Bhimtal Campus, Bhimtal, 263136, Uttarakhand, India
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Fazelifar P, Cucchiarini A, Khoshbin Z, Mergny JL, Kazemi Noureini S. Strong and selective interactions of palmatine with G-rich sequences in TRF2 promoter; experimental and computational studies. J Biomol Struct Dyn 2023:1-15. [PMID: 38100552 DOI: 10.1080/07391102.2023.2292793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 11/25/2023] [Indexed: 12/17/2023]
Abstract
G-rich sequences have the potential to fold into G-quadruplexes (GQs). G-quadruplexes, particularly those positioned in the regulatory regions of proto-oncogenes, have recently garnered attention in anti-cancer drug design. A thermal FRET assay was employed to conduct preliminary screening of various alkaloids, aiming to identify stronger interactions with a specific set of G-rich double-labeled oligonucleotides in both K + and Na + buffers. These oligonucleotides were derived from regions associated with Kit, Myc, Ceb, Bcl2, human telomeres, and potential G-quadruplex forming sequences found in the Nrf2 and Trf2 promoters. Palmatine generally increased the stability of different G-rich sequences into their folded GQ structures, more or less in a concentration dependent manner. The thermal stability and interaction of palmatine was further studied using transition FRET (t-FRET), CD and UV-visible spectroscopy and molecular dynamics simulation methods. Palmatine showed the strongest interaction with T RF2 in both K+ and Na+ buffers even at equimolar concentration ratio. T-FRET studies revealed that palmatine has the potential to disrupt double-strand formation by the T RF2 sequence in the presence of its complementary strand. Palmatine exhibits a stronger interaction with G-rich strand DNA, promoting its folding into G-quadruplex structures. It is noteworthy that palmatine exhibits the strongest interaction with T RF2, which is the shortest sequence among the G-rich oligonucleotides studied, featuring only one nucleotide for two of its loops. Palmatine represents a suitable structure for drug design to develop more specific ligands targeting G-quadruplexes. Whether palmatine can also affect the expression of the T RF2 gene requires further studies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Pegah Fazelifar
- Department of Biology, Faculty of Basic Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Anne Cucchiarini
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Zahra Khoshbin
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jean-Louis Mergny
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
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Yoo MJ, Choi J, Jang YJ, Park SY, Seol JW. Anti-cancer effect of palmatine through inhibition of the PI3K/AKT pathway in canine mammary gland tumor CMT-U27 cells. BMC Vet Res 2023; 19:223. [PMID: 37880653 PMCID: PMC10601335 DOI: 10.1186/s12917-023-03782-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/08/2023] [Indexed: 10/27/2023] Open
Abstract
Canine mammary gland tumors (CMTs) are the most common and lethal cancers in female dogs. Dysregulated phosphoinositide 3-kinases (PI3K)/AKT pathway reportedly was involved in the growth and metastasis of CMTs. However, there are few studies on therapeutic strategies for targeting the PI3K pathway in CMTs. In this study, we aimed to determine whether palmatine, a natural isoquinoline alkaloid with anti-cancer properties, could inhibit the growth of CMTs and whether the inhibitory effect was mediated through the PI3K/AKT pathway. Our in vitro experiments on CMT-U27, a CMT cell line, showed that palmatine reduced cell proliferation and induced cell death. Western blotting results revealed that palmatine decreased the protein expression of PI3K, PTEN, AKT, and mechanistic target of rapamycin in the PI3K/AKT pathway, which was supported by the results of immunocytochemistry. Additionally, palmatine suppressed the migration and tube formation of canine aortic endothelial cells as well as the migration of CMT U27 cells. Our in vivo results showed that palmatine inhibited tumor growth in a CMT-U27 mouse xenograft model. We observed a decreased expression of proteins in the PI3K/AKT pathway in tumor tissues, similar to the in vitro results. Furthermore, palmatine significantly disrupted the tumor vasculature and inhibited metastasis to adjacent lymph nodes. In conclusion, our findings demonstrate that palmatine exerts anti-cancer effects against CMTs by inhibiting PI3K/AKT signaling pathway, suggesting that palmatine has potential as a canine-specific PI3K inhibitor for the treatment of CMTs.
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Affiliation(s)
- Min-Jae Yoo
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-Do, 54596, Republic of Korea
| | - Jawun Choi
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-Do, 54596, Republic of Korea
| | - Ye-Ji Jang
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-Do, 54596, Republic of Korea
| | - Sang-Youel Park
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-Do, 54596, Republic of Korea
| | - Jae-Won Seol
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-Do, 54596, Republic of Korea.
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Pereira JF, de Sousa Neves JC, Fonteles AA, Bezerra JR, Pires RC, da Silva ATA, Lima FAV, Neves KRT, Oriá RB, de Barros Viana GS, Tavares J, de Sousa Nascimento T, Oliveira AV, Parente ACB, Gomes JMP, de Andrade GM. Palmatine, a natural alkaloid, attenuates memory deficits and neuroinflammation in mice submitted to permanent focal cerebral ischemia. J Neuroimmunol 2023; 381:578131. [PMID: 37413943 DOI: 10.1016/j.jneuroim.2023.578131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/16/2023] [Accepted: 06/13/2023] [Indexed: 07/08/2023]
Abstract
Ischemic stroke is one of the major causes of human morbidity and mortality. The pathophysiology of ischemic stroke involves complex events, including oxidative stress and inflammation, that lead to neuronal loss and cognitive deficits. Palmatine (PAL) is a naturally occurring (Coptidis rhizome) isoquinoline alkaloid that belongs to the class of protoberberines and has a wide spectrum of pharmacological and biological effects. In the present study, we evaluated the impact of Palmatine on neuronal damage, memory deficits, and inflammatory response in mice submitted to permanent focal cerebral ischemia induced by middle cerebral artery (pMCAO) occlusion. The animals were treated with Palmatine (0.2, 2 and 20 mg/kg/day, orally) or vehicle (3% Tween + saline solution) 2 h after pMCAO once daily for 3 days. Cerebral ischemia was confirmed by evaluating the infarct area (TTC staining) and neurological deficit score 24 h after pMCAO. Treatment with palmatine (2 and 20 mg/kg) reduced infarct size and neurological deficits and prevented working and aversive memory deficits in ischemic mice. Palmatine, at a dose of 2 mg/kg, had a similar effect of reducing neuroinflammation 24 h after cerebral ischemia, decreasing TNF-, iNOS, COX-2, and NF- κB immunoreactivities and preventing the activation of microglia and astrocytes. Moreover, palmatine (2 mg/kg) reduced COX-2, iNOS, and IL-1β immunoreactivity 96 h after pMCAO. The neuroprotective properties of palmatine make it an excellent adjuvant treatment for strokes due to its inhibition of neuroinflammation.
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Affiliation(s)
- Juliana Fernandes Pereira
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil
| | - Juliana Catharina de Sousa Neves
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil
| | - Analu Aragão Fonteles
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil
| | - Jéssica Rabelo Bezerra
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Rayssa Costa Pires
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil
| | - Ana Thais Araújo da Silva
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Francisco Arnaldo Viana Lima
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil
| | - Kelly Rose Tavares Neves
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil
| | - Reinaldo Barreto Oriá
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil
| | - Glauce Socorro de Barros Viana
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Juliete Tavares
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Tyciane de Sousa Nascimento
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Alfaete Vieira Oliveira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Ana Caroline Barros Parente
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Jessica Maria Pessoa Gomes
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil
| | - Geanne Matos de Andrade
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Brazil, Rua Professor Costa Mendes, 1608, 60.430-140 Fortaleza, CE, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Rua Coronel Nunes de Melo, 1127, 60.430-275 Fortaleza, CE, Brazil; Neuroscience and Behavior Laboratory, Drug Research and Development Center (NPDM), Federal University of Ceara, Rua Coronel Nunes de Melo, 1000, 60.430-275 Fortaleza, CE, Brazil.
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Qin J, Luo Z, Wang Q, Tang C, Meng M, Huang Z, Guo B, He Y, Feng L, Nong Y, Deng L, Zhu D, Guo H, Liang Y, Su Z. Integrating metabonomics and metagenomics sequencing to study the anti-liver fibrosis effects of palmatine in Corydalis saxicola Bunting. J Ethnopharmacol 2023; 315:116666. [PMID: 37211189 DOI: 10.1016/j.jep.2023.116666] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/07/2023] [Accepted: 05/18/2023] [Indexed: 05/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Corydalis saxicola Bunting (CS), a traditional Chinese folk medicine, has been effectively used for treating liver disease in Zhuang nationality in South China. However, the main anti-liver fibrosis ingredients in CS are incompletely understood. AIM OF THE STUDY To elucidate the main anti-liver fibrosis ingredients in CS and its underlying mechanism. MATERIAL AND METHODS Firstly, spectrum-effect relationship (SER) strategy was applied to identify the major ingredients against liver fibrosis in CS. Subsequently, 1H NMR metabonomics and metagenomics sequencing techniques were used to clarify the intervention of palmatine (PAL) on liver fibrosis. Furthermore, the expression of tight junction proteins and the levels of liver inflammation factors were examination, the effect of PAL on microbiota was verified by FMT. RESULTS The SER model revealed that PAL was the most important active ingredient in CS. 1H NMR fecal metabonomics showed that PAL could reserve the abnormal levels of gut microbial-mediated metabolites of liver fibrosis, such as isoleucine, taurine, butyrate, propionate, lactate, glucose, which mainly involved in amino acid metabolism, intestinal flora metabolism and energy metabolism. Metagenomics sequencing found that PAL could callback the abundance of s__Lactobacillus_murinus, s__Lactobacillus_reuteri, s__Lactobacillus_johnsonii, s__Lactobacillus_acidophilus and s__Faecalibaculum_rodentium to varying degree. Furthermore, the intestinal barrier function and the levels of hepatic inflammation factors were significantly ameliorated by PAL. FMT demonstrated that the therapeutic efficiency of PAL was closely associated with gut microbiota. CONCLUSION The effects of CS on liver fibrosis were attributed in part to PAL by alleviating metabolic disorders and rebalancing gut microbiota. The SER strategy may be a useful method for the discovery of active constituents in natural plants.
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Affiliation(s)
- Jinghua Qin
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Zhuo Luo
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Qianyi Wang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Chaoling Tang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China; Department of Pharmacy, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China.
| | - Mingwei Meng
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Zheng Huang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Bingjian Guo
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Ying He
- First Clinical Medical College, Guangxi Medical University, Nanning, 530021, China.
| | - Linlin Feng
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Yunyuan Nong
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Lijun Deng
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Dan Zhu
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Hongwei Guo
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Yonghong Liang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Zhiheng Su
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, Nanning, 530021, China; Guangxi Engineering Research Center for Beibu Gulf Marine Biomedicine Precision Development and High-value Utilization, Nanning, 530021, China; Guangxi Health Commission Key Laboratory of Basic Research on Antigeriatric Drugs, Nanning, 530021, China.
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Kiris I, Kukula-Koch W, Karayel-Basar M, Gurel B, Coskun J, Baykal AT. Proteomic alterations in the cerebellum and hippocampus in an Alzheimer's disease mouse model: Alleviating effect of palmatine. Biomed Pharmacother 2023; 158:114111. [PMID: 36502756 DOI: 10.1016/j.biopha.2022.114111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/28/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is one of the most prevalent diseases that lead to memory deficiencies, severe behavioral abnormalities, and ultimately death. The need for more appropriate treatment of AD continues, and remains a sought-after goal. Previous studies showed palmatine (PAL), an isoquinoline alkaloid, might have the potential for combating AD because of its in vitro and in vivo activities. In this study, we aimed to assess PAL's therapeutic potential and gain insights into the working mechanism on protein level in the AD mouse model brain, for the first time. To this end, PAL was administered to 12-month-old 5xFAD mice at two doses after its successful isolation from the Siberian barberry shrub. PAL (10 mg/kg) showed statistically significant improvement in the memory and learning phase on the Morris water maze test. The PAL's ability to pass through the blood-brain barrier was verified via Multiple Reaction Monitoring (MRM). Label-free proteomics analysis revealed PAL administration led to changes most prominently in the cerebellum, followed by the hippocampus, but none in the cortex. Most of the differentially expressed proteins in PAL compared to the 5xFAD control group (ALZ) were the opposite of those in ALZ in comparison to healthy Alzheimer's littermates (ALM) group. HS105, HS12A, and RL12 were detected as hub proteins in the cerebellum. Collectively, here we present PAL as a potential therapeutic candidate owing to its alleviating effect in 5xFAD mice on not only cognitive impairment but also proteomes in the cerebellum and hippocampus.
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Affiliation(s)
- Irem Kiris
- Department of Biochemistry and Molecular Biology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, Lublin, Poland
| | - Merve Karayel-Basar
- Department of Biochemistry and Molecular Biology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Busra Gurel
- Sabanci University Nanotechnology Research and Application Center, SUNUM, Istanbul, Turkey
| | - Julide Coskun
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
| | - Ahmet Tarik Baykal
- Department of Medical Biochemistry, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey.
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Ai G, Huang R, Xie J, Zhong L, Wu X, Qin Z, Su Z, Chen J, Yang X, Dou Y. Hypouricemic and nephroprotective effects of palmatine from Cortex Phellodendri Amurensis: A uric acid modulator targeting Keap1-Nrf2/NLRP3 axis. J Ethnopharmacol 2023; 301:115775. [PMID: 36198377 DOI: 10.1016/j.jep.2022.115775] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Palmatine (Pal) is a major bioactive alkaloid originated from ancient Chinese herbal medicine Cortex Phellodendri Amurensis (CPA), which has long been applied to treat hyperuricemia (HUA)-related diseases. Pal possesses potent anti-inflammatory and anti-oxidant effects against metabolic diseases. However, its potential beneficial effect against PO (potassium oxonate)/HX (hypoxanthine)-induced HUA remains elusive. AIM OF THE STUDY This study aimed to investigate the potential pharmacological effect and mechanism of Pal on PO/HX-induced HUA in mice. MATERIAL AND METHODS A mouse model of HUA was established by co-administration of PO/HX once daily for 7 consecutive days. The HUA mice were orally given three doses (25, 50 and 100 mg/kg) of Pal daily for a week. Febuxostat (Feb, 5 mg/kg) was given as a positive control. At the scheduled termination of the experiment, the whole blood, liver and kidney were collected for subsequent analyses. The concentrations of uric acid (UA), creatinine (CRE) and blood urea nitrogen (BUN), and activities of adenosine deaminase (ADA) and xanthine oxidase (XOD) were evaluated. Histopathological alterations of the kidney were detected by H&E staining. The inflammatory and oxidative stress status was detected by assay kits. Additionally, key proteins involved in the urate transporter, Keap1-Nrf2 and TXNIP/NLRP3 signaling pathways were evaluated by immunohistochemistry and Western blotting. Finally, molecular docking was employed to probe the binding characteristics of Pal and target proteins Keap1, NLRP3, URAT1 and HO-1. RESULTS Administration of Pal substantially decreased the elevated kidney weight, lowered UA, CRE and BUN levels, and attenuated abnormal histopathological alterations. Meanwhile, treatment with Pal also dramatically lowered hepatic XOD and ADA activities. Besides, Pal treatment effectively mitigated the renal inflammatory and oxidative stress markers. Further mechanistic investigation indicated Pal distinctly downregulated the protein levels of GLUT9 and URAT1, while up-regulated the expression levels of OAT1 and ABCG2. Pal also restored Nrf2 activation, promoted subsequent expression of anti-oxidative enzymes, and downregulated the expressions of TXNIP, NLRP3, apoptosis-associated speck-like (ASC), caspase-1, IL-1β and IL-18. Molecular docking analysis also indicated Pal firmly bound with Keap1, NLRP3, URAT1 and HO-1. CONCLUSIONS These findings indicated that Pal exhibited favorable anti-HUA effect via modulating the expressions of transporter-related proteins and suppressing XOD activity. Furthermore, Pal also alleviated HUA-induced kidney injury, which was at least partially related to restoring Keap1-Nrf2 pathway and inhibiting TXNIP/NLRP3 inflammasome. Our investigation was envisaged to provide experimental support for the traditional application of CPA and CPA-containing classical herbal formulas in the management of HUA-related diseases and might provide novel dimension to the clinical application of Pal.
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Affiliation(s)
- Gaoxiang Ai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Ronglei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Jianhui Xie
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, 510006, PR China
| | - Linjiang Zhong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Xiaoyan Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Zehui Qin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Jiannan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Xiaobo Yang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, 510006, PR China.
| | - Yaoxing Dou
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; The Second Clinical Medical College of Guangzhou University of Chinese Medicine/Post-Doctoral Research Station, Guangzhou, 510006, PR China.
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Wang L, Li M, Zhu C, Qin A, Wang J, Wei X. The protective effect of Palmatine on depressive like behavior by modulating microglia polarization in LPS-induced mice. Neurochem Res 2022; 47:3178-3191. [PMID: 35917005 DOI: 10.1007/s11064-022-03672-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 06/23/2022] [Accepted: 06/28/2022] [Indexed: 11/30/2022]
Abstract
The purpose of the present study was to evaluate the protective effect of Palmatine on LPS-induced depressive like behavior and explore its potential mechanism. The mice were intragastrically treated with Fluoxetine or Palmatine once daily for 1 week. After the last drug administration, the mice were intraperitoneally challenged with LPS and suffered for Sucrose preference test, Tail suspension test, Forced swimming test and Open field test. The pro-inflammatory biomarkers were measured by ELISA, qPCR, WB and immunofluorescence. As a result, the administration of Palmatine effectively lessened depressive-like behavior. Palmatine could decrease the levels of pro-inflammatory cytokines TNF-α, IL-6, the expressions of CD68, iNOS mRNA, as well as increase the levels of anti-inflammatory cytokines IL-4, IL-10, the expressions of CD206, Arg1 mRNA, Ym1 mRNA both in LPS-induced mice and in LPS-induced BV2 cells. The beneficial effect of Palmatine might be attributed to the suppression of M1 microglia polarization and the promotion of M2 microglia polarization via PDE4B/KLF4 signaling. The similar results were observed in CUMS-induced depressive mice. The transfection with PDE4B SiRNA or KLF4 SiRNA indicated that PDE4B and KLF4 were both involved in the Palmatine-mediated microglia polarization. Molecular docking indicated that Palmatine could interact with PDE4B. In conclusion, this research demonstrated that Palmatine attenuated depressive like behavior by modulating microglia polarization via PDE4B/KLF4 signaling.
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Affiliation(s)
- Lei Wang
- School of Pharmacy, Jiangsu Health Vocational College, No.69, Huangshanling Road, 211800, Nanjing, China
| | - Min Li
- Department of pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, 250014, Jinan, China
| | - Cuiping Zhu
- Pukou branch of Jiangsu Province Hospital, No.166, Shanghe street, 211800, Nanjing, China
| | - Aiping Qin
- School of Pharmacy, Jiangsu Health Vocational College, No.69, Huangshanling Road, 211800, Nanjing, China
| | - Jinchun Wang
- School of Pharmacy, Jiangsu Health Vocational College, No.69, Huangshanling Road, 211800, Nanjing, China.
| | - Xianni Wei
- Department of Pharmacy, Xiamen Haicang Hospital, No. 89, Haiyu Road, 361026, Xiamen, China.
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Cheng D, Liu P, Wang Z. Palmatine attenuates the doxorubicin-induced inflammatory response, oxidative damage and cardiomyocyte apoptosis. Int Immunopharmacol 2022; 106:108583. [PMID: 35151220 DOI: 10.1016/j.intimp.2022.108583] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 12/20/2022]
Abstract
BACKGROUND As a natural isoquinoline alkaloid, palmatine (PLT) has been proven to play a protective role against a variety of cardiovascular diseases. However, little research on the effects of PLT on doxorubicin (DOX)-induced cardiotoxicity has been carried out. Thus, we investigated the potential functions of PLT in DOX-induced cardiotoxicity. In the present study, a single intraperitoneal injection of DOX (15 mg/kg) in mice was used to establish an acute cardiotoxicity model. Our study shows that PLT administration could reduce myocardial injury and improve cardiac dysfunction in DOX-treated mice. Further experiments showed that PLT administration suppressed the DOX-induced inflammatory response, oxidative damage and cardiomyocyte apoptosis in mice. Moreover, we found that the protective effect of PLT treatment was counteracted by sirtuin1 (Sirt1) knockdown. In summary, our study shows that PLT treatment can exert a protective effect against DOX-induced cardiotoxicity.
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Affiliation(s)
- Dongliang Cheng
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, 238# Jiefang Road, Wuhan, Hubei Province 430000, China
| | - Ping Liu
- Department of Pathology, Shiyan Taihe Hospital, Hubei University of Medicine, Shiyan City, Hubei Province, China
| | - Zhiwei Wang
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, 238# Jiefang Road, Wuhan, Hubei Province 430000, China.
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Ruiz N, Jarosova P, Taborsky P, Gargallo R. Study of the interaction of the palmatine alkaloid with hybrid G-quadruplex/duplex and i-motif/duplex DNA structures. Biophys Chem 2021; 281:106715. [PMID: 34784553 DOI: 10.1016/j.bpc.2021.106715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/22/2021] [Accepted: 11/04/2021] [Indexed: 11/19/2022]
Abstract
There is an increasing interest in the study of guanine or cytosine-rich sequences that may fold into G-quadruplex (G4) or i-motif (iM) structures showing a short hairpin (or stem-loop) stabilized by Watson-Crick base pairs. These hybrid spatial arrangements may be target of ligands that have been shown to interact strongly with B-DNA. In this work, the interaction of the palmatine alkaloid with several sequences forming different G4s, iMs, and hybrid structures has been studied by means of spectroscopic and separation techniques, as well as multivariate data analysis methods. At the experimental conditions used in this work, the results have shown that this ligand strongly stabilizes parallel G4 structures, whereas a weaker interaction was observed with the antiparallel G4 adopted by the thrombin-binding aptamer or iMs. The presence of hairpins within the loops scarcely affects the affinity of this ligand for the hybrid G4/duplex or iM/duplex structures. Fluorescence measurements have provided evidence of a certain interaction with iMs at pH 5.1, despite the absence of thermal stabilization effects.
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Affiliation(s)
- Noelia Ruiz
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí I Franqués 1-11, E-08028 Barcelona, Spain
| | - Petra Jarosova
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - Petr Taborsky
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic.
| | - Raimundo Gargallo
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí I Franqués 1-11, E-08028 Barcelona, Spain.
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Song Y, Wang K, Wei X, Wei T, Xiao T, Wei M. Pharmacokinetics, tissue distribution and plasma protein binding rate of palmatine following intragastric and intravenous administration in rats using liquid chromatography tandem mass spectrometry. J Pharm Biomed Anal 2021; 203:114226. [PMID: 34182412 DOI: 10.1016/j.jpba.2021.114226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 10/21/2022]
Abstract
Palmatine is a natural isoquinoline alkaloid widely found in traditional Chinese medicines. In this study, a simple, sensitive and rapid ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was developed and validated for the quantification of palmatine in the plasma and tissue samples in rats. Sample preparation involved a simple protein precipitation extraction technique using acetonitrile as the precipitating solvent. Chromatographic separation was accomplished on an ACQUITY UPLC BEH C18 column with a mobile phase of acetonitrile-5 mM ammonium acetate solution (70:30, v/v) at a flow rate of 0.3 mL/min. Coptisine was selected as the internal standard. The protonated analytes were determined with MRM in the positive ion mode. The assay exhibited a linear dynamic range of 1.0-1000 ng/mL for palmatine in each biological matrix and the low limit of quantification was 1.0 ng/mL. Non-compartmental pharmacokinetic parameters indicated that there is a significant difference in the apparent distribution volume and half-life between intragastric and intravenous administration modes. Palmatine could be detected in different tissues and the content in liver and kidney is relatively high, suggesting that liver and kidney might be the targeting organs of palmatine. The plasma protein binding rate test showed that the percent binding of palmatine is medium, and was found to be higher in human than in rats.
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Abstract
The aim of this study was to investigate the effects of palmatine on gentamicin toxicity. Rats arranged in four groups: 1- Sham, 2- GM, 3- & 4- GM + palmatine (50 & 100 mg/kg). Gentamicin led to increase in plasma AST, ALT, BUN and creatinine. In addition, fractional excretion of Na and K were increased and urine flow rate and creatinine clearance were decreased in gentamicin group. Liver and renal tissues malondialdehyde were increased, and glutathione was decreased in GM group. TUNEL assay showed induction of apoptosis in liver and kidney in GM group. Palmatine treatment caused reduction in plasma AST, ALT, urine flow rate, creatinine clearance, renal and hapatic malondialdehyde, apoptosis and increase in renal and hapatic glutathione, fractional excretion of Na and K, plasma BUN and creatinine in contrast to GM group. Our data showed palmatine reduced hepatotoxicity and nephrotoxicity by inhibition of oxidative stress and apoptosis.
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Affiliation(s)
- Mehdi Khaksari
- Clinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Samira Esmaili
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Reyhane Abedloo
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
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21
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Okechukwu PN, Ekeuku SO, Chan HK, Eluri K, Froemming GRA. Palmatine Inhibits Up-Regulation of GRP78 and CALR Protein in an STZ-Induced Diabetic Rat Model. Curr Pharm Biotechnol 2021; 22:288-298. [PMID: 32744968 DOI: 10.2174/1389201021666200730124208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/22/2020] [Accepted: 06/19/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes Mellitus (DM) is characterized by hyperglycemia (high blood glucose levels) which is due to the destruction of insulin-producing β-cells in the islets of Langerhans in the pancreas. It is associated with oxidative and endoplasmic reticulum stress. The plant alkaloid Palmatine has been previously reported to possess antidiabetic and antioxidant properties as well as other protective properties against kidney and liver tissue damage. OBJECTIVE Here, we investigated the ability of Palmatine to reduce the up-regulation of chaperone proteins Glucose Regulatory Protein 78 (GRP78), and Calreticulin (CALR) protein in a Streptozotocin (STZ)-induced diabetic rat model. METHODS Streptozotocin (STZ) induced diabetes in Sprague Dawley rats treated with 2mg/kg of Palmatine for 12 weeks after the elevation of plasma glucose levels above 11mmol/L post-STZ administration. Proteins were extracted from the pancreas after treatment and Two-Dimensional gel electrophoresis (2-DE), PDQuest 2-D analysis software genomic solutions and mass spectrometer were used to analyze differentially expressed protein. Mass Spectrometry (MS/MS), Multidimensional Protein Identification Technology (MudPIT) was used for protein identification. RESULTS There was an up-regulation of the expression of chaperone proteins CALR and GRP78 and down-regulation of the expression of antioxidant and protection proteins peroxidoxin 4 (Prdx4), protein disulfide isomerase (PDIA2/3), Glutathione-S-Transferase (GSTs), and Serum Albumin (ALB) in non-diabetic rats. Palmatine treatment down-regulated the expression of chaperone proteins CALR and GRP78 and up-regulated the expression of Prdx4, PDIA2/3, GST, and ALB. CONCLUSION Palmatine may have activated antioxidant proteins, which protected the cells against reactive oxygen species and endoplasmic stress. The result is in consonance with our previous report on Palmatine.
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Affiliation(s)
- Patrick N Okechukwu
- Department of Biotechnology, Faculty of Applied Science UCSI University No. 1, Jalan Menara Gading, UCSI Heights, (Taman Connaught) Cheras 56000 Kuala Lumpur, Malaysia
| | - Sophia O Ekeuku
- Department of Biotechnology, Faculty of Applied Science UCSI University No. 1, Jalan Menara Gading, UCSI Heights, (Taman Connaught) Cheras 56000 Kuala Lumpur, Malaysia
| | - Hor K Chan
- Department of Biotechnology, Faculty of Applied Science UCSI University No. 1, Jalan Menara Gading, UCSI Heights, (Taman Connaught) Cheras 56000 Kuala Lumpur, Malaysia
| | - Kalpana Eluri
- Department of Medicine, Faculty of Medicine and Health Sciences, UCSI University Kuala Lumpur Campus, No. 1, Jalan Meara Gading, UCSI Heights, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Gabriele R A Froemming
- Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300 Kota Samarahan, Sarawak, Malaysia
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Ning Y, Xu F, Xin R, Yao F. Palmatine regulates bile acid cycle metabolism and maintains intestinal flora balance to maintain stable intestinal barrier. Life Sci 2020; 262:118405. [PMID: 32926925 DOI: 10.1016/j.lfs.2020.118405] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Palmatine (PAL) is a natural isoquinoline alkaloid that has been widely used in the pharmaceutical field. The current study aimed to investigate the function of PAL in improving hyperlipidemia induced by high-fat diet (HFD) in rats. METHODS Biochemical analysis of triglyceride (TG), total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDLC) was performed on rats. Total bile acid (TBA) and stool TC and TBA were also measured to assess the changes in total bile acid excretion. RT-qPCR was employed to detect the expression of genes related to bile acid metabolism, and the Western blot assay was used to detect the levels of CYP7A1, ZO-1, ZO-2, and Claudin-1. The siRNA experiment was employed to further investigate whether PAL regulated CYP7A1 through PPARα. Lipopolysaccharide (LPS) and FITC-dextran (FD-4) were also tested to assess the intestinal permeability. RESULTS AL-treated rats had lower TC, TG, LDL-C levels, lower serum TBA levels, and increased fecal TBA and TC levels. Furthermore, CYP7A1 protein expression was up-regulated in PAL-treated rats. Additionally, PAL regulated bile acid metabolism by up-regulating the expression of CYP7A1 and PPARα and down-regulating the expression of FXR. Besides, the area of plasma FD-4 and LPS content in the PAL group were reduced, and the expression of proteins ZO-1, ZO-2 and Claudin-1 related to intestinal permeability was increased. CONCLUSION All in all, PAL could mediate the PPARα-CYP7A1 pathway to maintain the balance of intestinal flora, regulate the bile acid metabolism, and reduce the blood lipids of rats, thereby protecting against hyperlipidemia.
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Affiliation(s)
- Yayuan Ning
- Department of Cardiology, the Second Hospital of Jilin University, Changchun 130041, PR China
| | - Fei Xu
- Department of Acupuncture, the Second Hospital of Jilin University, Changchun 130041, PR China
| | - Rui Xin
- Department of Radiology, the Second Hospital of Jilin University, Changchun 130041, PR China
| | - Fang Yao
- Department of Cardiology, the Second Hospital of Jilin University, Changchun 130041, PR China.
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Tian X, Zhang Y, Li H, Li Y, Wang N, Zhang W, Ma B. Palmatine ameliorates high fat diet induced impaired glucose tolerance. Biol Res 2020; 53:39. [PMID: 32928312 PMCID: PMC7491132 DOI: 10.1186/s40659-020-00308-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/07/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The impaired glucose tolerance (IGT) is a representative prediabetes characterized by defective glucose homeostasis, and palmatine (PAL) is a natural isoquinoline alkaloid with multiple pharmacological effects. Our study aims to investigate the therapeutic effect of PAL on the impaired glucose tolerance. METHODS Male Sprague-Dawley rats were used to establish an IGT model with high fat diet (HFD). Oral glucose tolerance test (OGTT) and further biochemical analysis were conducted to determine the effect of PAL on glucose intolerance in vivo. Molecular details were clarified in a cellular model of IGT induced by Palmitate (PA) on INS-1 cells. RESULTS Our study demonstrated a relief of IGT with improved insulin resistance in HFD induced rats after PAL treatment. Besides, promoted pancreas islets function was validated with significantly increased β cell mass after the treatment of PAL. We further found out that PAL could alleviate the β cell apoptosis that accounts for β cell mass loss in IGT model. Moreover, MAPK signaling was investigated in vivo and vitro with the discovery that PAL regulated the MAPK signaling by restricting the ERK and JNK cascades. The insulin secretion assay indicated that PAL significantly promoted the defective insulin secretion in PA-induced INS-1 cells via JNK rather than ERK signaling. Furthermore, PAL treatment was determined to significantly suppress β cell apoptosis in PA-induced cells. We thus thought that PAL promoted the PA-induced impaired insulin release by inhibiting the β cell apoptosis and JNK signaling in vitro. CONCLUSION In summary, PAL ameliorates HFD-induced IGT with novel mechanisms.
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Affiliation(s)
- Xusheng Tian
- Teaching and Research Department of Theories of Schools of Traditional Chinese Medicine, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Yukun Zhang
- Laboratory of Anatomy, Experimental and Training Center, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Han Li
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Yunfeng Li
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Ning Wang
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Wei Zhang
- Department of Chinese Medicinal Formulae, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Boyan Ma
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China.
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Wong SK, Chin KY, Ima-Nirwana S. Berberine and musculoskeletal disorders: The therapeutic potential and underlying molecular mechanisms. Phytomedicine 2020; 73:152892. [PMID: 30902523 DOI: 10.1016/j.phymed.2019.152892] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/09/2019] [Accepted: 03/12/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Musculoskeletal disorders are a group of disorders that affect the joints, bones, and muscles, causing long-term disability. Berberine, an isoquinoline alkaloid, has been previously established to exhibit beneficial properties in preventing various diseases, including musculoskeletal disorders. PURPOSE This review article aims to recapitulate the therapeutic potential of berberine and its mechanism of action in treating musculoskeletal disorders. METHODS A wide range of literature illustrating the effects of berberine in ameliorating musculoskeletal disorders was retrieved from online electronic databases (PubMed and Medline) and reviewed. RESULTS Berberine may potentially retard the progression of osteoporosis, osteoarthritis and rheumatoid arthritis. Limited studies reported the effects of berberine in suppressing the proliferation of osteosarcoma cells. These beneficial properties of berberine are mediated in part through its ability to target multiple signaling pathways, including PKA, p38 MAPK, Wnt/β-catenin, AMPK, RANK/RANKL/OPG, PI3K/Akt, NFAT, NF-κB, Hedgehog, and oxidative stress signaling. In addition, berberine exhibited anti-apoptotic, anti-inflammatory, and immunosuppressive properties. CONCLUSION The current evidence indicates that berberine may be effective in preventing musculoskeletal disorders. However, findings from in vitro and in vivo investigations await further validation from human clinical trial.
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Affiliation(s)
- Sok Kuan Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Soelaiman Ima-Nirwana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 Kuala Lumpur, Malaysia.
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Chaves SKM, Afzal MI, Islam MT, Hameed A, Da Mata AMOF, Da Silva Araújo L, Ali SW, Rolim HML, De Medeiros MDGF, Costa EV, Salehi B, Martins N, Arif AM, Imran M, Sharifi-Rad J, Melo-Cavalcante AADC, Feitosa CM. Palmatine antioxidant and anti-acetylcholinesterase activities: A pre-clinical assessment. Cell Mol Biol (Noisy-le-grand) 2020; 66:54-59. [PMID: 32583771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Indexed: 06/11/2023]
Abstract
There is evidence that palmatine (PA), an alkaloid isolated from the Guatteria friesiana plant, has some important biological activities, including anti-inflammatory and antidepressant effects. In this study, the antioxidant and anti-acetylcholinesterase (AChE) effects of PA were assessed. The antioxidant capacity was evaluated in vitro and in vivo through 7 distinct assays, and the anti-AChE activity was determined in vitro. The standards, trolox and ascorbic acid were used for the in vitro antioxidant test, while hydrogen peroxide was selected as a stressor for the Saccharomyces cerevisiae test. Additionally, PA was also combined with trolox and ascorbic acid to determine the likelihood of synergistic effects occurrence to what concerns to antioxidant potential. PA exhibited a potent and concentration-dependent antioxidant potential, although a stronger antioxidant activity was stated using the PA + trolox combination. PA was also found to inhibit AChE activity when compared to the negative control. Thus, PA may be viewed as a promissory phytotherapeutic agent to manage oxidative stress-mediated neurological diseases, especially the Alzheimer's and Parkinson's diseases.
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Affiliation(s)
- Soane Kaline Morais Chaves
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina (Piauí)- 64.049-550, Brazil
| | - Muhammad Inam Afzal
- Department of Biosciences, COMSATS University Islamabad, Park Road, Tarlai kalan, Islamabad, 45550, Pakistan
| | - Muhammad Torequl Islam
- Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj (Dhaka)-8100, Bangladesh
| | - Aneela Hameed
- Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan
| | | | | | - Shinawar Waseem Ali
- Institute of Agricultural Sciences, University of the Punjab, Quaid-i-Azam Campus, Lahore-54590, Pakistan
| | - Hercília Maria Lins Rolim
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina (Piauí)- 64.049-550, Brazil
| | | | - Emmanoel Vilaca Costa
- Department of Chemistry, Federal University of Amazonas, Manaus - AM, 69067-005, Brazil
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Natália Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Atta Muhammad Arif
- Department of Dairy Technology, University of Veterinary and Animal Sciences, Lahore 5400, Pakistan
| | - Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore-Lahore, Pakistan
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Chistiane Mendes Feitosa
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina (Piauí)- 64.049-550, Brazil
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Chen X, Wang R, Bao C, Zhang J, Zhang J, Li R, Wu S, Wen J, Yang T, Wei S, Li H, Wei Y, Ren S, Zhao Y. Palmatine ameliorates Helicobacter pylori-induced chronic atrophic gastritis by inhibiting MMP-10 through ADAM17/EGFR. Eur J Pharmacol 2020; 882:173267. [PMID: 32569674 DOI: 10.1016/j.ejphar.2020.173267] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 01/15/2023]
Abstract
Palmatine (Pal), a plant-based isoquinoline alkaloid, was initially isolated from Coptidis Rhizoma (CR, Huanglian in Chinese) and considered to be a potential non-antibiotic therapeutic agent that can safely and effectively improve Helicobacter pylori (H. pylori) induced chronic atrophic gastritis (CAG). However, underlying mechanisms are unclear. In this study, we explored the protective effect of Pal on H. pylori induced CAG in vivo and in vitro. As a result, Pal alleviated the histological damage of gastric mucosa and the morphological changes of gastric epithelial cell (GES-1) caused by H. pylori. Furthermore, Pal significantly inhibited the expression of EGFR-activated ligand genes, including a disintegrin and metalloproteinase 17 (ADAM17) and heparin-binding epidermal growth factor-like growth factor (HB-EGF), and the proinflammatory factors, such as chemokine 16 (CXCL-16) and interleukin 8 (IL-8), were suppressed. In addition, Pal attenuated inflammatory infiltration of CD8+ T cells while promoted Reg3a expression to enhance host defense. Taken together, we concluded that Pal attenuated the MMP-10 dependent inflammatory response in the gastric mucosa by blocking ADAM17/EGFR signaling, which contributed to its gastrointestinal protective effect.
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Affiliation(s)
- Xing Chen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Ruilin Wang
- Integrative Medical Center, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Chunmei Bao
- Division of Clinical Microbiology, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Jianzhong Zhang
- Center of Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, 102206, China
| | - Juling Zhang
- Division of Clinical Microbiology, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Ruisheng Li
- Research Center for Clinical and Translational Medicine, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Shihua Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Jianxian Wen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Tao Yang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Haotian Li
- Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Ying Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Sichen Ren
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
| | - Yanling Zhao
- Department of Pharmacy, Fifth Medical Center of PLA General Hospital, Beijing, 100039, China.
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He L, Liu L, Guan S, Zheng X, Ge H, Yin C, Shen Y, Tan M, Wang C, Gao Y, Xiong W. Palmatine alleviates hyperalgesia by inhibiting the expression of calcitonin gene-related peptide in the trigeminal ganglion of rats with chronic constriction injury of the infraorbital nerve. Br J Oral Maxillofac Surg 2020; 58:443-450. [PMID: 32139146 DOI: 10.1016/j.bjoms.2020.01.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 01/31/2020] [Indexed: 12/22/2022]
Abstract
Trigeminal neuralgia is one of the most common of the neuropathic pains, and it can seriously influence patients' quality of life. Calcitonin gene-related peptide (CGRP) is a type of nociceptive neurotransmitter that is expressed in neurons of the trigeminal ganglion and plays a major part in transmitting pain. The rat model of trigeminal neuralgia was established by causing a chronic constriction injury of the infraorbital nerve (CCI-ION). Male Sprague-Dawley rats (n=24) were randomly divided into a sham control group (sham, n=6), sham-treated with palmatine group (sham+palmatine, n=6), trigeminal nerve model group (TN, n=6), and trigeminal nerve treated with palmatine group (TN+palmatine, n=6). Fifteen days after the operation the mechanical response threshold was decreased in the TN group compared with the sham group. From postoperative day 7 to day 15, the mechanical response threshold in the TN+palmatine group significantly increased compared with the TN group. On postoperative day 15 the results of quantitative polymerase chain reaction (qPCR), immunohistochemical staining, and western blotting showed an obvious increase in expression of CGRP and its receptors, serum concentrations of interleukin-1β (IL-1β), and tumour necrosis factor-α (TNF-α), and phosphorylation of protein kinase C (PKC) in the trigeminal ganglia of the TN group compared with the sham group, but these increases could be down-regulated by treatment with palmatine. Palmatine might therefore have therapeutic potential for the treatment of trigeminal neuralgia by inhibiting the expression of CGRP and its receptors in trigeminal ganglia, suppressing the serum concentrations of IL-1β and TNF-α, and decreasing the phosphorylation of PKC in the trigeminal ganglia of affected rats.
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Affiliation(s)
- L He
- Affiliated Stomatological Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - L Liu
- Affiliated Stomatological Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - S Guan
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - X Zheng
- Queen Mary college of grade 2015, Nanchang University, Nanchang, Jiangxi, China
| | - H Ge
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - C Yin
- Affiliated Stomatological Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Y Shen
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - M Tan
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - C Wang
- Second Clinic Medical College of Grade 2017, Nanchang University, Nanchang, Jiangxi, China
| | - Y Gao
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi, China
| | - W Xiong
- Affiliated Stomatological Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi, China.
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Ho YJ, Lu JW, Huang YL, Lai ZZ. Palmatine inhibits Zika virus infection by disrupting virus binding, entry, and stability. Biochem Biophys Res Commun 2019; 518:732-8. [PMID: 31472967 DOI: 10.1016/j.bbrc.2019.08.120] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 08/23/2019] [Indexed: 12/15/2022]
Abstract
Zika virus (ZIKV) is an emerging vector-borne virus that is associated with severe congenital cerebral anomalies in fetuses and paralytic Guillain-Barré syndrome in adults. In the current global health crisis, there are no vaccines or therapeutics available for the treatment of ZIKV infection. In the present study, we evaluated the efficacy of the protoberberine alkaloid, palmatine, in inhibiting ZIKV and Japanese encephalitis virus (JEV). Palmatine was shown to bind to restricted viruses, inhibit ZIKV infection, and resist ZIKV-induced cytopathic effects. Palmatine was also shown to inhibit JEV infection in multiple cell lines. Overall, the effects of palmatine in disrupting ZIKV binding, entry, and stability indicate that this small molecule would be a good starting point for the development of treatments aimed at inhibiting ZIKV infection.
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Gao Y, Hu Z, Wu J, Ning Z, Jian J, Zhao T, Liang X, Yang X, Yang Z, Zhao Q, Wang J, Wang Z, Dina NE, Gherman AMR, Jiang Z, Zhou H. Size-tunable Au@Ag nanoparticles for colorimetric and SERS dual-mode sensing of palmatine in traditional Chinese medicine. J Pharm Biomed Anal 2019; 174:123-133. [PMID: 31163346 DOI: 10.1016/j.jpba.2019.05.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/30/2019] [Accepted: 05/21/2019] [Indexed: 01/22/2023]
Abstract
Palmatine is a protoberberine alkaloid separated from several plants and application as an anti-inflammatory and antibacterial agent in the therapy of gastrointestinal and genitourinary disorder. Thus, the fast quantification of palmatine is important in clinic medical assays. Herein, we report simple, fast and sensitive colorimetric visualization and surface-enhanced Raman spectroscopy (SERS) dual-mode detection of palmatine basing on bimetallic size tunable silver shell capped gold nanoparticles (Au@Ag NPs). Interesting, the best signals output for dual-mode sensing of palmatine were both 5 nm Ag shell thickness of Au@Ag NPs. Meanwhile, we found that the addition of NaHSO4 significantly improves the aggregating sensitivity of Au@Ag NPs to trace palmatine. Upon exposure to 0.1 μM level palmatine, NaHSO4-optimized Au@Ag NPs solution exhibits a highly sensitive color change from orange to green and rapid aggregation kinetics within the initial 5 min, which can directly be seen with the naked eye and monitored by UV-vis absorbance spectra. In addition, we measured palmatine by SERS with the excellent enhancement effect of Au@Ag NPs for further increase the sensitivity and selectivity. More importantly, other protoberberine alkaloids do not interfere with this dual-mode sensor due to the different interaction force between Au@Ag NPs and these alkaloids, and the applicability of the sensor is well demonstrated in real samples with satisfactory results. This provide a fast and simple assay for the rapid detection of palmatine in traditional Chinese medicine, the limit of detection (LOD) is 0.13 μM by the naked eye and 0.10 μM by UV-vis spectroscopy. Therefore, the size-tunable of NaHSO4-optimized Au@Ag NPs can be used not only as a naked-eye sensor of palmatine, but also as a highly selective SERS probe.
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Affiliation(s)
- Yaohui Gao
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ziwei Hu
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jiamin Wu
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zan Ning
- Nanjing Jinling Petrochemical Engineering Co. Ltd., Nanjing, Jiangsu 210042, China
| | - Jingyi Jian
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ting Zhao
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xiaochen Liang
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xingjie Yang
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zi Yang
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Qinyu Zhao
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jianping Wang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Zhigang Wang
- Department of Critical Care Medicine, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, China.
| | - Nicoleta Elena Dina
- Department of Molecular and Biomolecular Physics, National Institute of R&D of Isotopic and Molecular Technologies, Donat 67-103, 400293 Cluj-Napoca, Romania
| | - Ana Maria Raluca Gherman
- Department of Molecular and Biomolecular Physics, National Institute of R&D of Isotopic and Molecular Technologies, Donat 67-103, 400293 Cluj-Napoca, Romania
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
| | - Haibo Zhou
- Institute of Pharmaceutical Analysis and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
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30
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Du J, Yu Y, Qiu L, Qiu M, Zhu Q. Palmatine plays a role in sedation and hypnosis by increasing 5-hydroxytryptamine. Cell Mol Biol (Noisy-le-grand) 2019; 65:69-75. [PMID: 31078155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
Objective of this study was to investigate the sedative and hypnotic effects of palmatine and to observe whether its mechanism is related to 5-hydroxytryptamine (5-HT) and GABA. The sedative and hypnotic effects of palmatine on mice were observed with mouse autonomic activity test, direct sleep test, pentobarbital sodium in suprathreshold and subthreshold dose sleep test. The content of GABA and 5-HT in brain homogenate was determined by ELISA method. Mouse brain specimens were observed by immunohistochemistry for 5-HT expression in the nucleus of mouse brain. Palmatine could reduce spontaneous activities of mice, prolong the sleep time of mice induced by pentobarbital sodium in suprathreshold dose and shorten the sleep latency. And it could increase the number of mice falling asleep induced by pentobarbital sodium in subthreshold dose and the incidence of falling asleep, but with no direct sleep effect. In addition, it enhanced the 5-HT content in brain, but had no effect on GABA content, and had no toxicity to PC12 cells. Palmatine plays a significant role in sedation and hypnosis, which may be associated with the increase of intra-cerebral 5-HT.
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Affiliation(s)
- Jianwei Du
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang City, China
| | - Yanbo Yu
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang City, China
| | - Liuji Qiu
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou City, China
| | - Mizhen Qiu
- Department of Pain, Ganzhou People's Hospital, Ganzhou City, China
| | - Qing Zhu
- Department of Pain, Ganzhou People's Hospital, Ganzhou City, China
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31
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Johnson-Ajinwo OR, Richardson A, Li WW. Palmatine from Unexplored Rutidea parviflora Showed Cytotoxicity and Induction of Apoptosis in Human Ovarian Cancer Cells. Toxins (Basel) 2019; 11:toxins11040237. [PMID: 31027283 PMCID: PMC6521182 DOI: 10.3390/toxins11040237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 12/25/2022] Open
Abstract
Ovarian cancer ranks amongst the deadliest cancers in the gynaecological category of cancers. This research work aims to evaluate in vitro anti-ovarian cancer activities and identify phytochemical constituents of a rarely explored plant species—Rutidea parviflora DC. The aqueous and organic extracts of the plant were evaluated for cytotoxicity using sulforhodamine B assay in four ovarian cancer cell lines and an immortalized human ovarian epithelial (HOE) cell line. The bioactive compounds were isolated and characterized by gas/liquid chromatography mass spectrometry and nuclear magnetic resonance spectroscopy. Caspase 3/7 activity assay, western blotting and flow cytometry were carried out to assess apoptotic effects of active compounds. The extracts/fractions of R. parviflora showed promising anti-ovarian cancer activities in ovarian cancer cell lines. A principal cytotoxic alkaloid was identified as palmatine whose IC50 was determined as 5.5–7.9 µM. Palmatine was relatively selective towards cancer cells as it was less cytotoxic toward HOE cells, also demonstrating interestingly absence of cross-resistance in cisplatin-resistant A2780 cells. Palmatine further induced apoptosis by increasing caspase 3/7 activity, poly-ADP-ribose polymerase cleavage, and annexin V and propidium iodide staining in OVCAR-4 cancer cells. Our studies warranted further investigation of palmatine and R. parviflora extracts in preclinical models of ovarian cancer.
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Affiliation(s)
- Okiemute Rosa Johnson-Ajinwo
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Stoke-on-Trent ST4 7QB, UK.
- Faculty of Pharmaceutical Sciences, University of Port Harcourt, Port Harcourt, PMB 5323, Nigeria.
| | - Alan Richardson
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Stoke-on-Trent ST4 7QB, UK.
| | - Wen-Wu Li
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Stoke-on-Trent ST4 7QB, UK.
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Chakravarthy D, Muñoz AR, Su A, Hwang RF, Keppler BR, Chan DE, Halff G, Ghosh R, Kumar AP. Palmatine suppresses glutamine-mediated interaction between pancreatic cancer and stellate cells through simultaneous inhibition of survivin and COL1A1. Cancer Lett 2019; 419:103-115. [PMID: 29414301 PMCID: PMC5858579 DOI: 10.1016/j.canlet.2018.01.057] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 01/14/2018] [Accepted: 01/18/2018] [Indexed: 11/29/2022]
Abstract
Reciprocal interaction between pancreatic stellate cells (PSCs) and cancer cells (PCCs) in the tumor microenvironment (TME) promotes tumor cell survival and progression to lethal, therapeutically resistant pancreatic cancer. The goal of this study was to test the ability of Palmatine (PMT) to disrupt this reciprocal interaction in vitro and examine the underlying mechanism of interaction. We show that PSCs secrete glutamine into the extracellular environment under nutrient deprivation. PMT suppresses glutamine-mediated changes in GLI signaling in PCCs resulting in the inhibition of growth and migration while inducing apoptosis by inhibition of survivin. PMT-mediated inhibition of (glioma-associated oncogene 1) GLI activity in stellate cells leads to suppression (collagen type 1 alpha 1) COL1A1 activation. Remarkably, PMT potentiated gemcitabine’s growth inhibitory activity in PSCs, PCCs and inherently gemcitabine-resistant pancreatic cancer cells. This is the first study that shows the ability of PMT to inhibit growth of PSCs and PCCs either alone or in combination with gemcitabine. These studies warrant additional investigations using preclinical models to develop PMT as an agent for clinical management of pancreatic cancer.
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Affiliation(s)
- Divya Chakravarthy
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Amanda R Muñoz
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Angel Su
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Rosa F Hwang
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Centre, Houston, TX 77030, USA
| | - Brian R Keppler
- Metabolon, Inc., 617 Davis Drive, Suite 400, Morrisville, NC 27560, USA
| | | | - Glenn Halff
- Department of Transplant Surgery, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Rita Ghosh
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; Department of Pharmacology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Addanki P Kumar
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; Department of Pharmacology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA; Audie Murphy South Texas Veterans Health Care System, San Antonio, TX 78229, USA.
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Mai CT, Wu MM, Wang CL, Su ZR, Cheng YY, Zhang XJ. Palmatine attenuated dextran sulfate sodium (DSS)-induced colitis via promoting mitophagy-mediated NLRP3 inflammasome inactivation. Mol Immunol 2018; 105:76-85. [PMID: 30496979 DOI: 10.1016/j.molimm.2018.10.015] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/05/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023]
Abstract
Activation of NLRP3 inflammasomes is crucial in the pathological process of Ulcerative colitis (UC), which could be negatively regulated by PINK1/Parkin-driven mitophagy. Palmatine is a herb derived isoquinoline alkaloid with potent anti-inflammatory and anti-bacteria activities. In present study, we evaluated the effect of palmatine on dextran sulfate sodium (DSS)-induced mice colitis and examined whether its effect is exerted by promoting mitophagy-mediated NLRP3 inflammasome inactivation. The result showed that palmatine (40, 100 mg/kg) significantly prevented bodyweight loss and colonic shortening in DSS mice, and reduced the disease activity index and histopathologic score. The levels of MPO, IL-1β, TNF-α and the number of F4/80+ cells in colon of DSS mice were remarkably decreased by palmatine. Moreover, palmatine suppressed NLRP3 inflammasomes activation, but enhanced the expression of the mitophagy-related proteins involving LC3, PINK1 and Parkin in colonic tissue of DSS mice. These effects was consistent with the in vitro data revealing that palmatine inhibited the activation of NLRP3 inflammasomes, while promoted the expression and mitochondrial recruitment of PINK1 and Parkin in THP-1 cell differentiated macrophages. Furthermore, the effect of palmatine on THP-1 cells was neutralized by a mitophagy inhibitor Cyclosporin A (CsA) and PINK1-siRNA. In parallel, CsA significantly attenuated the therapeutic effect of palmatine in DSS mice, illustrating that the anti-colitis effect of palmatine is closely related to mitophagy. Taken together, the current results demonstrated that palmatine protected mice against DSS-induced colitis by facilitating PINK1/Parkin-driven mitophagy and thus inactivating NLRP3 inflammasomes in macrophage.
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Affiliation(s)
- Chu-Tian Mai
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Mei-Mei Wu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Chun-Li Wang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Zi-Ren Su
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Yuan-Yuan Cheng
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Xiao-Jun Zhang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
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Zhang XJ, Yuan ZW, Qu C, Yu XT, Huang T, Chen PV, Su ZR, Dou YX, Wu JZ, Zeng HF, Xie Y, Chen JN. Palmatine ameliorated murine colitis by suppressing tryptophan metabolism and regulating gut microbiota. Pharmacol Res 2018; 137:34-46. [PMID: 30243842 DOI: 10.1016/j.phrs.2018.09.010] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/05/2018] [Accepted: 09/12/2018] [Indexed: 02/07/2023]
Abstract
Inflammatory bowel disease (IBD), majorly include Crohn's disease (CD) and ulcerative colitis (UC), is chronic and relapsing inflammatory disorders of the gastrointestinal tract, which treatment options remain limited. Here we examined the therapeutic effects of an isoquinoline alkaloid, Palmatine (Pal), on mice experimental colitis induced by dextran sulfate sodium (DSS) and explored underlying mechanisms. Colitis was induced in BALB/c mice by administering 3% DSS in drinking water for 7 days. Pal (50 and 100 mg kg-1) and the positive drug Sulfasalazine (SASP, 200 mg kg-1) were orally administered for 7 days. Disease activity index (DAI) was evaluated on day 8, and colonic tissues were collected for biochemistry analysis. The fecal microbiota was characterized by high-throughput Illumina MiSeq sequencing. And plasma metabolic changes were detected by UPLC-MS. Our results showed that Pal treatment significantly reduced DAI scores and ameliorated colonic injury in mice with DSS-induced colitis. Mucosal integrity was improved and cell apoptosis was inhibited. Moreover, gut microbiota analysis showed that mice received Pal-treatment have higher relative abundance of Bacteroidetes and Firmicutes, but reduced amount of Proteobacteria. Moreover, Pal not only suppressed tryptophan catabolism in plasma, but also decreased the protein expression of indoleamine 2,3-dioxygenase 1 (IDO-1, the rate-limiting enzyme of tryptophan catabolism) in colon tissue. This is consolidated by molecular docking, which suggested that Pal is a potent IDO-1 inhibitor. Taken together, our findings demonstrate that Pal ameliorated DSS-induced colitis by mitigating colonic injury, preventing gut microbiota dysbiosis, and regulating tryptophan catabolism, which indicated that Pal has great therapeutic potential for colitis.
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Affiliation(s)
- Xiao-Jun Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, PR China.
| | - Zhong-Wen Yuan
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau.
| | - Chang Qu
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, PR China.
| | - Xiu-Ting Yu
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, PR China.
| | - Tao Huang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
| | - Ping Vicky Chen
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
| | - Zi-Ren Su
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, PR China.
| | - Yao-Xing Dou
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, PR China.
| | - Jia-Zhen Wu
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, PR China.
| | - Hui-Fang Zeng
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, PR China.
| | - Ying Xie
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau.
| | - Jian-Nan Chen
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, PR China.
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Haj E, Losev Y, Guru KrishnaKumar V, Pichinuk E, Engel H, Raveh A, Gazit E, Segal D. Integrating in vitro and in silico approaches to evaluate the "dual functionality" of palmatine chloride in inhibiting and disassembling Tau-derived VQIVYK peptide fibrils. Biochim Biophys Acta Gen Subj 2018; 1862:1565-1575. [PMID: 29634991 DOI: 10.1016/j.bbagen.2018.04.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/20/2018] [Accepted: 04/03/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common neurodegenerative disorder which is characterized by the deposits of intra-cellular tau protein and extra-cellular amyloid-β (Aβ) peptides in the human brain. Understanding the mechanism of protein aggregation and finding compounds that are capable of inhibiting its aggregation is considered to be highly important for disease therapy. METHODS We used an in vitro High-Throughput Screening for the identification of potent inhibitors of tau aggregation using a proxy model; a highly aggregation-prone hexapeptide fragment 306VQIVYK311 derived from tau. Using ThS fluorescence assay we screened a library of 2401 FDA approved, bio-active and natural compounds in attempt to find molecules which can efficiently modulate tau aggregation. RESULTS Among the screened compounds, palmatine chloride (PC) alkaloid was able to dramatically reduce the aggregation propensity of PHF6 at sub-molar concentrations. PC was also able to disassemble preformed aggregates of PHF6 and reduce the amyloid content in a dose-dependent manner. Insights obtained from MD simulation showed that PC interacted with the key residues of PHF6 responsible for β-sheet formation, which could likely be the mechanism of inhibition and disassembly. Furthermore, PC could effectively inhibit the aggregation of full-length tau and disassemble preformed aggregates. CONCLUSIONS We found that PC possesses "dual functionality" towards PHF6 and full-length tau, i.e. inhibit their aggregation and disassemble pre-formed fibrils. GENERAL SIGNIFICANCE The "dual functionality" of PC is valuable as a disease modifying strategy for AD, and other tauopathies, by inhibiting their progress and reducing the effect of fibrils already present in the brain.
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Affiliation(s)
- Esraa Haj
- Department of Molecular Microbiology and Biotechnology, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Yelena Losev
- Department of Molecular Microbiology and Biotechnology, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv 69978, Israel
| | - V Guru KrishnaKumar
- Department of Molecular Microbiology and Biotechnology, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv 69978, Israel; Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat 382355, India
| | - Edward Pichinuk
- BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Hamutal Engel
- BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Avi Raveh
- BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv 69978, Israel; BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Daniel Segal
- Department of Molecular Microbiology and Biotechnology, School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv 69978, Israel; The Interdisciplinary Sagol School of Neurosciences, Tel-Aviv University, Tel Aviv 69978, Israel.
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Shen Y, Guan S, Ge H, Xiong W, He L, Liu L, Yin C, Liu H, Li G, Xu C, Xu H, Liu S, Li G, Liang S, Gao Y. Effects of palmatine on rats with comorbidity of diabetic neuropathic pain and depression. Brain Res Bull 2018; 139:56-66. [PMID: 29427595 DOI: 10.1016/j.brainresbull.2018.02.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/27/2018] [Accepted: 02/02/2018] [Indexed: 12/25/2022]
Abstract
Diabetic neuropathic pain (DNP) is one of the common complications of diabetes. Depression (DP) is also one of the common complications of diabetes. P2X7 receptors play an important role in the transmission of nociceptive signal and are associated with depressive illness. In the study, the hyperalgesia, allodynia and depressive behaviours of rats with comorbidity of DNP and DP were confirmed by the thermal withdrawal latency (TWL) test, mechanical withdrawal threshold (MWT) test, sucrose preference test (SPT), immobility time of forced swimming test (IMFST) and open-field test (OFT). The change in expression of the P2X7 receptor of the hippocampus was observed through RT-PCR, qPCR, Western blotting and immunohistochemical staining methods The results showed that palmatine treatment can alleviate the hyperalgesia, allodynia and depressive behaviours of rats with comorbidity of DNP and DP. Meanwhile, the expression of P2X7 receptors, GFAP, TNF-α and IL-1β in the hippocampus of the rats with comorbidity of DNP and DP was significantly increased compared with the control rats, and palmatine treatment could decrease the expression. Furthermore, the enhanced phosphorylation of ERK1/2 in the hippocampus of rats with DNP and DP was decreased noticeably by palmatine treatment. The results of this study suggest that palmatine can alleviate the comorbidity of DNP and DP by inhibiting the expression of P2X7 receptors in the hippocampus, and its action may be related to suppression of the phosphorylation of ERK1/2 and the release of TNF-α and IL-1β in the hippocampus.
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Chen G, Xu Y, Jing J, Mackie B, Zheng X, Zhang X, Wang J, Li X. The anti-sepsis activity of the components of Huanglian Jiedu Decoction with high lipid A-binding affinity. Int Immunopharmacol 2017; 46:87-96. [PMID: 28278436 DOI: 10.1016/j.intimp.2017.02.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 02/09/2017] [Accepted: 02/27/2017] [Indexed: 12/11/2022]
Abstract
Huanglian Jiedu Decoction (HJD), one of the classic recipes for relieving toxicity and fever, is a common method for treating sepsis in China. However, the effective components of HJD have not yet been identified. This experiment was carried out to elucidate the effective components of HJD against sepsis. Thus, seven fractions from HJD were tested using a biosensor to test their affinity for lipid A. The components obtained that had high lipid A-binding fractions were further separated, and their affinities to lipid A were assessed with the aid of a biosensor. The levels of LPS in the blood were measured, and pathology experiments were conducted. The LPS levels and mRNA expression analysis of TNF-α and IL-6 of the cell supernatant and animal tissue were evaluated to investigate the molecular mechanisms. Palmatine showed the highest affinity to lipid A and was evaluated by in vitro and in vivo experiments. The results of the in vitro and in vivo experiments indicated that the levels of LPS, TNF-α and IL-6 of the palmatine group were significantly lower than those of the sepsis model group (p<0.01). The group treated with palmatine showed strong neutralizing LPS activity in vivo. The palmatine group exhibited stronger protective activity on vital organs compared to the LPS-induced animal model. This verifies that HJD is a viable treatment option for sepsis given that there are multiple components in HJD that neutralize LPS, decrease the release of IL-6 and TNF-α induced by LPS, and protect vital organs.
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Affiliation(s)
- Guirong Chen
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, DD port, Dalian 116600, China
| | - Yubin Xu
- Key Laboratory of Biological Invasions and Global Changes, College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110161, China.
| | - Jing Jing
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, DD port, Dalian 116600, China
| | - Brianna Mackie
- Department of Medicinal Chemistry, Virginia Commonwealth University, 23219, USA
| | - Xinchuan Zheng
- Medical Research Center, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Xu Zhang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, DD port, Dalian 116600, China
| | - Jing Wang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, DD port, Dalian 116600, China
| | - Xuetao Li
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, DD port, Dalian 116600, China
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Aghayan SS, Mogadam HK, Fazli M, Darban-Sarokhalil D, Khoramrooz SS, Jabalameli F, Yaslianifard S, Mirzaii M. The Effects of Berberine and Palmatine on Efflux Pumps Inhibition with Different Gene Patterns in Pseudomonas aeruginosa Isolated from Burn Infections. Avicenna J Med Biotechnol 2017; 9:2-7. [PMID: 28090273 PMCID: PMC5219818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Related Multidrug Resistance (MDR) to efflux pumps is a significant problem in treating infections caused by Pseudomonas aeruginosa (P. aeruginosa). Plant compounds have been identified as Pump Inhibitors (EPIs). In the current study, the potential effect of Berberine and Palmatine as EPIs were investigated on efflux pump inhibition through focusing on different gene patterns in P. aeruginosa isolated from burn infections. METHODS All isolates were collected and identified using the standard biochemical tests. Antimicrobial sensitivity was performed based on disk agar diffusion method for 12 antibiotics. MIC-MBC tests were also performed based on the broth microdilution method to detect synergistic relationship between ciprofloxacin, Berberine and Palmatine. Detection of mexA, mexB, mexC, mexD, mexE, mexF and mexX was conducted by PCR assay. Fisher's Exact test and Logistic Regression were used as statistical tools. RESULTS A total of 60 P. aeruginosa isolates were collected. The highest and lowest levels of resistance were found to be respectively against clindamycin and tigecycline. Comparing the MIC with MBC distribution, it was found that Berberine and Palmatine lower the MIC-MBC level of ciprofloxacin. The PCR results indicated that the highest frequency is about MexAB-OprM operon. The statistical analysis among different gene patterns of efflux pumps showed that there were no significant relationships between the effectiveness of Berberine and Palmatine (p>0.05). CONCLUSION It can be speculated that Berberine and Palmatine both act as EPIs and can be used as auxiliary treatments with the purpose of increasing the effect of available antibiotics as well as decreasing the emergence of MDR bacteria. The efficiency of these combinations should be studied further under in vivo conditions to have a more comprehensive conclusion regarding this issue.
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Affiliation(s)
- Seyed Sajjad Aghayan
- Department of Basic Sciences, Islamic Azad University, Damghan Branch, Damghan, Iran
| | | | - Mozhgan Fazli
- Faculty of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Davood Darban-Sarokhalil
- Department of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Fereshteh Jabalameli
- Department of Microbiology Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Yaslianifard
- Department of Microbiology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Mehdi Mirzaii
- Faculty of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran,Corresponding author: Mehdi Mirzaii, Ph.D., Faculty of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran Tel/Fax: +98 23 32394031 E-mail:
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Abstract
Palmatine (PM) is a potent anti-infective agent used to treat eye diseases. However, PM is less effective for ocular application due to short residence time within the eyes. This study aimed to develop a cationic lipid emulsions (CLEs) for ophthalmic delivery of PM and evaluate its suitability in infection treatment. PM-loaded CLEs (PM-CLEs) were prepared through emulsifying/high-pressure homogenisation and characterised by particle size, ζ potential and morphology. The resulting PM-CLEs possessed a particle size of 192 nm and ζ potential of 45 mV around. In vitro release illustrated that PM was released less from CLEs. Corneal bioadhesion test showed that PM-CLEs exhibited an enhanced ocular residence time. Improved anti-infective activity was achieved in the model of fungus-induced keratitis. Furthermore, PM-CLEs demonstrated predominant cellular uptake and internalisation in the corneal epithelial cells. These results provide proof of concept that CLEs are promising bioadhesive carriers for ophthalmic delivery of PM.
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Affiliation(s)
- Juntao Yin
- a Department of Pharmaceutics , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Cuiyu Xiang
- a Department of Pharmaceutics , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Guangxiu Lu
- a Department of Pharmaceutics , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
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Rong Q, Xu M, Dong Q, Zhang Y, Li Y, Ye G, Zhao L. In vitro and in vivo bactericidal activity of Tinospora sagittata (Oliv.) Gagnep. var. craveniana (S.Y.Hu) Lo and its main effective component, palmatine, against porcine Helicobacter pylori. Altern Ther Health Med 2016; 16:331. [PMID: 27576439 PMCID: PMC5006617 DOI: 10.1186/s12906-016-1310-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 08/20/2016] [Indexed: 02/07/2023]
Abstract
Background Tinospora sagittata (Oliv.) Gagnep. var. craveniana (S.Y.Hu) Lo (TSG) is a traditional Chinese herb that has been used for the treatment of upper respiratory tract infection and has anti-bacterial and anti-ulcer activity. Our study investigated the bactericidal effects of TSG and its major component, palmatine, against a Helicobacter pylori (H. pylori) strain isolated from pig and the standard strain H. pylori SS1 in vitro and in vivo. Methods H. pylori was isolated from pig and named H. pylori SCYA201401. For in vitro experiments, the inhibitory activity of TSG and palmatine against H. pylori SCYA201401 and H. pylori SS1 were tested by use of the agar cup diffusion technique. The minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were determined from the absence of H. pylori colonies on agar plates. Time-kill curves were used to evaluate bactericidal activity; the average number of colonies was calculated at 0 to 48 h after liquid incubation, with concentrations of drugs at 0.5, 1, and 2 × MIC. For in vivo experiments, H. pylori SCYA201401-infected mice were randomly divided into TSG, palmatine, triple therapy (omeprazole, clarithromycin, and amoxicillin), blank control, and model groups. The eradication ratios were determined by use of rapid urease tests and bacterial culture. Results In vitro, the MIC and MBC of TSG against H. pylori SCYA201401 and SS1 were both 6250 μg/mL, whereas palmatine against H. pylori SCYA201401 was 6.25 μg/mL and against H. pylori SS1 was 3.12 μg/mL. The time-kill curves showed a dose-dependent, progressive decline in the numbers of viable bacteria up to 40 h. In vivo, the eradication ratios in the TSG and palmatine groups of mice were 80 and 50 % compared with 70 % in the triple-therapy group. Conclusion TSG and its major component, palmatine, have bactericidal activity against H. pylori in vitro and in vivo. The possibility that TSG or palmatine can be effective in the treatment of human and animals H. pylori infection deserves investigation.
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Shi L, Xie JH, Du LM, Chang YX, Wu H. Determination of phenformin hydrochloride employing a sensitive fluorescent probe. Spectrochim Acta A Mol Biomol Spectrosc 2016; 162:98-104. [PMID: 26994318 DOI: 10.1016/j.saa.2016.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/03/2016] [Accepted: 03/06/2016] [Indexed: 06/05/2023]
Abstract
A complexation of non-fluorescent phenformin hydrochloride (PFH) with cucurbit [7]uril (CB [7]) in aqueous solution was investigated using the fluorescent probe of palmatine (PAL) coupled with CB [7]. The fluorescent probe of CB [7]-PAL exhibited strong fluorescence in aqueous solution, which was quenched gradually with the increase of PFH. This effect is observed because when PFH was added to the host-guest system of CB [7]-PAL, PFH and PAL competed to occupy the CB [7] cavity. Portions of the PAL molecule were expelled from the CB [7] cavity owing to the introduction of PFH. Based on the significant quenching of the supramolecular complex fluorescence intensity, a fluorescence method of high sensitivity and selectivity was developed to determine PFH with good precision and accuracy for the first time. The linear range of the method was 0.005-1.9 μg mL(-1) with a detection limit of 0.003 μg mL(-1). In this work, association constants (K) of PFH with CB [7] were also determined. KCB [7]-PFH=(2.52±0.05)×10(5) L mol(-1). The ability of PFH to bind with CB [7] is stronger than that of PAL. The results of a density functional theory calculation authenticated that the moiety of PFH was embedded in the hydrophobic cavity of CB [7] tightly, and the nitrogen atom is located in the vicinity of a carbonyl-laced portal in the energy-minimized structure. The molecular modelling of the interaction between PFH and CB [7] was also confirmed by (1)H NMR spectra (Bruker 600 MHz).
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Affiliation(s)
- Lin Shi
- Analytical and Testing Center, Shanxi Normal University, Shanxi, Linfen 041004, PR China
| | - Jian-Hong Xie
- Analytical and Testing Center, Shanxi Normal University, Shanxi, Linfen 041004, PR China
| | - Li-Ming Du
- Analytical and Testing Center, Shanxi Normal University, Shanxi, Linfen 041004, PR China.
| | - Yin-xia Chang
- Analytical and Testing Center, Shanxi Normal University, Shanxi, Linfen 041004, PR China
| | - Hao Wu
- Analytical and Testing Center, Shanxi Normal University, Shanxi, Linfen 041004, PR China
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Wang Y, Hu Y, Wu T, Zhang L, Liu H, Zhou X, Shao Y. Recognition of DNA abasic site nanocavity by fluorophore-switched probe: Suitable for all sequence environments. Spectrochim Acta A Mol Biomol Spectrosc 2016; 153:645-650. [PMID: 26454091 DOI: 10.1016/j.saa.2015.09.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 07/26/2015] [Accepted: 09/29/2015] [Indexed: 06/05/2023]
Abstract
Removal of a damaged base in DNA produces an abasic site (AP site) nanocavity. If left un-repaired in vivo by the specific enzyme, this nanocavity will result in nucleotide mutation in the following DNA replication. Therefore, selective recognition of AP site nanocavity by small molecules is important for identification of such DNA damage and development of genetic drugs. In this work, we investigate the fluorescence behavior of isoquinoline alkaloids including palmatine (PAL), berberine (BER), epiberberine (EPI), jatrorrhizine (JAT), coptisine (COP), coralyne (COR), worenine (WOR), berberrubine (BEU), sanguinarine (SAN), chelerythrine (CHE), and nitidine (NIT) upon binding with the AP nanocavity. PAL is screened out as the most efficient fluorophore-switched probe to recognize the AP nanocavity over the fully matched DNA. Its fluorescence enhancement occurs for all of the AP nanocavity sequence environments, which has not been achieved by the previously used probes. The bridged π conjugation effect should partially contribute to the AP nanocavity-specific fluorescence, as opposed to the solvent effect. Due to the strong binding with the AP nanocavity, PAL will find wide applications in the DNA damage recognition and sensor development.
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Affiliation(s)
- Ying Wang
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Yuehua Hu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Tao Wu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Lihua Zhang
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Hua Liu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Xiaoshun Zhou
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | - Yong Shao
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
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Wu Y, Liu R, Gu P, Cheng M, Zheng L, Liu Y, Ma P, Ding L. Highly sensitive method for simultaneous determination of nine alkaloids of Shuanghua Baihe tablets in human plasma by LC-MS/MS and its application. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1007:81-92. [PMID: 26590879 DOI: 10.1016/j.jchromb.2015.10.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 10/10/2015] [Accepted: 10/14/2015] [Indexed: 02/07/2023]
Abstract
Shuanghua Baihe tablets (SBT) is a traditional Chinese medicinal formula which has been used to treat recurrent aphthous stomatitis for many years. To study the pharmacokinetic profiles of berberine, epiberberine, coptisine, palmatine, jatrorrhizine, magnoflorine, berberrubine, corynoline and acetylcorynoline in human after administration of SBT, a sensitive liquid chromatography-tandem mass spectrometry method was developed and fully validated for the simultaneous quantification of these nine alkaloids in human plasma. After protein precipitation, the nine alkaloids in human plasma sample was separated on a Hanbon C18 (150mm×2.1mm, 5μm) column with gradient elution using methanol and 0.5% formic acid water solution, and detected by a triple quadrupole mass spectrometer with an electrospray ionization source. It is a challenge to design different calibration ranges for different analytes in a bioanalytical method for simultaneous determination of multi-analytes in bio-samples. To ensure that each alkaloid in the plasma was determined accurately by the simultaneous quantitation method, the upper limits of quantification for the nine alkaloids were designed at 100, 300, 800, 1800 and 5000pg/mL, respectively, according to the maximum plasma concentration value of each alkaloid obtained from the pilot pharmacokinetic study. The lower limit of quantification was 15pg/mL for berberine, epiberberine, coptisine, magnoflorine, berberrubine, corynoline and acetylcorynoline, while for palmatine and jatrorrhizine it was 1.5pg/mL. This method was successfully applied to investigate the pharmacokinetic profiles of the nine alkaloids in healthy Chinese volunteers after a single oral administration of SBT.
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Affiliation(s)
- Yao Wu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China; Nanjing Clinical Tech Laboratories Inc., 18 Zhilan Road, Jiangning District, Nanjing 211000, PR China
| | - Ruijuan Liu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China; Nanjing Clinical Tech Laboratories Inc., 18 Zhilan Road, Jiangning District, Nanjing 211000, PR China
| | - Pan Gu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China; Nanjing Clinical Tech Laboratories Inc., 18 Zhilan Road, Jiangning District, Nanjing 211000, PR China
| | - Minlu Cheng
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China; Nanjing Clinical Tech Laboratories Inc., 18 Zhilan Road, Jiangning District, Nanjing 211000, PR China
| | - Lu Zheng
- Yangtze River Pharmaceutical Group, Taizhou 225321, PR China
| | - Yujie Liu
- Yangtze River Pharmaceutical Group, Taizhou 225321, PR China
| | - Pengcheng Ma
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, 12 Jiangwangmiao Street, Nanjing 210042, PR China
| | - Li Ding
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China; Nanjing Clinical Tech Laboratories Inc., 18 Zhilan Road, Jiangning District, Nanjing 211000, PR China.
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Jing X, Bai B, Zhang C, Wu W, Du L, Liu H, Yao G. Rapid and sensitive determination of clenbuterol in porcine muscle and swine urine using a fluorescent probe. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt B:714-718. [PMID: 25315870 DOI: 10.1016/j.saa.2014.09.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 09/19/2014] [Accepted: 09/21/2014] [Indexed: 06/04/2023]
Abstract
The feed additive Clenbuterol hydrochloric acid (CLB) is non-fluorescent, thus it is difficult to quantify through direct fluorescent method. Palmatine (PAL) can react with cucurbit[7]uril (CB[7]) to form stable complexes as a fluorescent probe. Significant quenching of the fluorescence intensity of the CB[7]-PAL complex was observed with the addition of CLB. Based on the significant quenching of the supramolecular complex fluorescence intensity, a novel spectrofluorimetric method with high convenience, selectivity and sensitivity was developed for the determination of CLB. The fluorescence quenching values (ΔF) showed good linear relationship with CLB concentrations from 0.011 μg mL(-1) to 4.2 μg mL(-1) with a detection limit 0.004 μg mL(-1). In this research, an ultrasound treatment replaced the former time-consuming shake method to form stable complexes. The proposed spectrofluorimetric method had been successfully applied to the determination of CLB in porcine muscle and swine urine with good precision and accuracy. The competing reaction and the supramolecular interaction mechanisms between the CLB and PAL as they fight for occupancy of the CB[7] cavity were studied using spectrofluorimetry, (1)H NMR, and molecular modeling calculations. Interestingly, results indicate that two stable CB[7]-CLB complexes were formed.
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Affiliation(s)
- Xu Jing
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China.
| | - Bing Bai
- Criminal Technology Department, Shanxi Province Linfen City Public Security Bureau, Linfen 041000, PR China
| | - Chenxuan Zhang
- Analytical and Testing Center, Shanxi Normal University, Linfen 041000, PR China
| | - Wenying Wu
- Analytical and Testing Center, Shanxi Normal University, Linfen 041000, PR China
| | - Liming Du
- Analytical and Testing Center, Shanxi Normal University, Linfen 041000, PR China
| | - Hailong Liu
- Analytical and Testing Center, Shanxi Normal University, Linfen 041000, PR China
| | - Guojun Yao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
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Jung J, Choi JS, Jeong CS. Inhibitory Activities of Palmatine from Coptis chinensis Against Helicobactor pylori and Gastric Damage. Toxicol Res 2014; 30:45-8. [PMID: 24795799 PMCID: PMC4007043 DOI: 10.5487/tr.2014.30.1.045] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 03/19/2014] [Accepted: 03/19/2014] [Indexed: 01/08/2023] Open
Abstract
Helicobacter pylori (H. pylori) is the most important factor of gastric disease in clinical practice. Moreover, smoking, stress and a poor diet may be additive factors for gastric damage. With these factors, increasing infection of H. pylori triggers gastritis, gastric ulcers and gastric cancer. To develop a new protective agent, we are concerned with plant-derived extract. The extract of Coptis chinensis (C. chinensis) and its constituents were investigated to assess their protective activities against gastric damage. The C. chinensis extract showed a scavenging effect against 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and superoxide radicals, inhibition of H. pylori colonization and antiulcerogenic activities in rat. In particular, palmatine derived from C. chinensis was found to be the novel protective agent. It is better than the C. chinensis extract, berberine, a well-known constituent of C. chinensis. We suggest that palmatine from the root cortex of C. chinensis may be a good candidate for the development of new pharmaceuticals to prevent gastric disease.
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Affiliation(s)
- Joohee Jung
- College of Pharmacy, Duksung Women's University, 33, 144-gil, Samyang-ro, Dobong-gu, Seoul, Korea
| | - Jae Sue Choi
- Division of Food Science and Biotechnology, Pukyoung National University, 45, Yongso-ro, Nam-gu, Busan, Korea
| | - Choon-Sik Jeong
- College of Pharmacy, Duksung Women's University, 33, 144-gil, Samyang-ro, Dobong-gu, Seoul, Korea
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Liu QF, Shi XJ, Li ZD, Zhong MK, Jiao Z, Wang B. Pharmacokinetic comparisons of berberine and palmatine in normal and metabolic syndrome rats. J Ethnopharmacol 2013; 151:287-291. [PMID: 24269776 DOI: 10.1016/j.jep.2013.10.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/01/2013] [Accepted: 10/22/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE San-Huang formula is a popular traditional Chinese medicine (TCM) preparation to replenish Qi, resolve phlegm, dissipate blood stasis, and therapy metabolic syndrome in China. Metabolic syndrome, which is accompanied by Qi and blood stasis, mainly arises from spleen deficiency in essence. There is limited information available for differences of pharmacokinetic properties of San-Huang formula between normal and metabolic syndrome rats. The present study was conducted to compare the pharmacokinetics of berberine as well as palmatine in normal and metabolic syndrome rats following oral administration of San-Huang formula extract. MATERIALS AND METHODS The animals were orally administered with San-Huang formula extract with the equivalent dose of 60.4 and 12.5mg/kg for berberine and palmatine, respectively. The blood samples were collected according to the time schedule. The concentrations of berberine and palmatine in rat plasma were determined by LC-ESI/MS. Various pharmacokinetic parameters were estimated from the plasma concentration versus time data using non-compartmental methods. RESULTS It was found that AUC0-t, Cmax, Vd and CL of berberine and palmatine in metabolic syndrome rats were significantly different (P<0.05) from normal rats. CONCLUSIONS The results indicated that berberine and palmatine have higher uptake and slower elimination in the rats with metabolic syndrome, which suggests that the rate and extent of drug metabolism were altered in metabolic syndrome rats.
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Affiliation(s)
- Qing-Feng Liu
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China
| | - Xiao-Jin Shi
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China
| | - Zhong-Dong Li
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China
| | - Ming-kang Zhong
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China.
| | - Zheng Jiao
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China
| | - Bin Wang
- Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University, 12 Wu Lu Mu Qi M Road, Shanghai 200040, PR China
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Pustovidko AV, Rokitskaya TI, Severina II, Simonyan RA, Trendeleva TA, Lyamzaev KG, Antonenko YN, Rogov AG, Zvyagilskaya RA, Skulachev VP, Chernyak BV. Derivatives of the cationic plant alkaloids berberine and palmatine amplify protonophorous activity of fatty acids in model membranes and mitochondria. Mitochondrion 2012; 13:520-5. [PMID: 23026390 DOI: 10.1016/j.mito.2012.09.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 09/11/2012] [Accepted: 09/23/2012] [Indexed: 11/24/2022]
Abstract
Previously it has been shown by our group that berberine and palmatine, penetrating cations of plant origin, when conjugated with plastoquinone (SkQBerb and SkQPalm), can accumulate in isolated mitochondria or in mitochondria of living cells and effectively protect them from oxidative damage. In the present work, we demonstrate that SkQBerb, SkQPalm, and their analogs lacking the plastoquinone moiety (C10Berb and C10Palm) operate as mitochondria-targeted compounds facilitating protonophorous effect of free fatty acids. These compounds induce proton transport mediated by small concentrations of added fatty acids both in planar and liposomal model lipid membranes. In mitochondria, such an effect can be carried out by endogenous fatty acids and the adenine nucleotide translocase.
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Affiliation(s)
- Antonina V Pustovidko
- Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical Biology, Vorobyevy Gory 1, 119991 Moscow, Russia
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