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Huong NT, Son NT. Icaritin: A phytomolecule with enormous pharmacological values. PHYTOCHEMISTRY 2023:113772. [PMID: 37356700 DOI: 10.1016/j.phytochem.2023.113772] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 06/27/2023]
Abstract
Pharmacological studies on flavonoids have always drawn much interest for many years. Icaritin (ICT), a representative flavone containing an 8-prenyl group, is a principal compound detected in medicinal plants of the genus Epimedum, the family Berberidaceae. Experimental results in the phytochemistry and pharmacology of this molecule are abundant now, but a deep overview has not been carried out. The goal of this review is to provide an insight into the natural observation, biosynthesis, biotransformation, synthesis, pharmacology, and pharmacokinetics of prenyl flavone ICT. The relevant data on ICT was collected from bibliographic sources, like Google Scholar, Web of Science, Sci-Finder, and various published journals. "Icaritin" alone or in combination is the main keyword to seek for references, and references have been updated till now. ICT is among the characteristic phytomolecules of Epimedum plants. Bacteria monitored its biosynthesis and biotransformation, while this agent was rapidly synthesized from phloroglucinol by microwave-assistance Claisen rearrangement. ICT is a potential agent in numerous in vitro and in vivo pharmacological records, which demonstrated its role in cancer treatments via apoptotic-related mechanisms. It also brings in various health benefits since it reduced harmful effects on the liver, lung, heart, bone, blood, and skin, and improved immune responses. Pharmacokinetic outcomes indicated that its metabolic pathway involved hydration, hydroxylation, dehydrogenation, glycosylation, and glucuronidation. Molecule mechanisms of action at a cellular level are predominant, but clinical studies are expected to get more. Structure-activity relationship records seem insufficient, and the studies on nano-combined approaches to improve its soluble property in living bodied medium are needed.
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Affiliation(s)
- Nguyen Thi Huong
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Viet Nam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
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2
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Estrogenic flavonoids and their molecular mechanisms of action. J Nutr Biochem 2023; 114:109250. [PMID: 36509337 DOI: 10.1016/j.jnutbio.2022.109250] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022]
Abstract
Flavonoids are a major group of phytoestrogens associated with physiological effects, and ecological and social impacts. Although the estrogenic activity of flavonoids was reported by researchers in the fields of medical, environmental and food studies, their molecular mechanisms of action have not been comprehensively reviewed. The estrogenic activity of the respective classes of flavonoids, anthocyanidins/anthocyanins, 2-arylbenzofurans/3-arylcoumarins/α-methyldeoxybenzoins, aurones/chalcones/dihydrochalcones, coumaronochromones, coumestans, flavans/flavan-3-ols/flavan-4-ols, flavanones/dihydroflavonols, flavones/flavonols, homoisoflavonoids, isoflavans, isoflavanones, isoflavenes, isoflavones, neoflavonoids, oligoflavonoids, pterocarpans/pterocarpenes, and rotenone/rotenoids, was summarized through a comprehensive literature search, and their structure-activity relationship, biological activities, signaling pathways, and applications were discussed. Although the respective classes of flavonoids contained at least one chemical mimicking estrogen, the mechanisms varied, such as those with estrogenic, anti-estrogenic, non-estrogenic, and biphasic activities, and additional activities through crosstalk/bypassing, which exert biological activities through cell signaling pathways. Such mechanistic variations of estrogen action are not limited to flavonoids and are observed among other broad categories of chemicals, thus this group of chemicals can be termed as the "estrogenome". This review article focuses on the connection of estrogen action mainly between the outer and the inner environments, which represent variations of chemicals and biological activities/signaling pathways, respectively, and form the basis to understand their applications. The applications of chemicals will markedly progress due to emerging technologies, such as artificial intelligence for precision medicine, which is also true of the study of the estrogenome including estrogenic flavonoids.
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Niu Y, Lin G, Pan J, Liu J, Xu Y, Cai Q, Wang T, Luan Y, Chen Y, Feng Y, Yang X, Tian W, Bae WJ, Guan R, Xin Z. Deciphering the myth of icariin and synthetic derivatives in improving erectile function from a molecular biology perspective: a narrative review. Transl Androl Urol 2022; 11:1007-1022. [PMID: 35958901 PMCID: PMC9360520 DOI: 10.21037/tau-22-232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/02/2022] [Indexed: 11/06/2022] Open
Abstract
Background and Objective Although epimedium herb (EH) has been widely used in ancient Chinese medicine to enhance sexual activity, its pharmacological mechanism is not clear. Modern studies have shown that epimedium herb is rich in icariin (ICA, a flavonoid compound), and 91.2% of icariin is converted to icariside II (ICA II) by hydrolytic enzymes in intestinal bacteria after oral administration. YS-10 is a synthetic derivative of icariside II. The aim of this review was to summarize the contemporary evidence regarding the pharmacokinetics, therapeutic properties, and molecular biological mechanisms of ICA and some ICA derivatives for erectile dysfunction therapy. Methods A detailed search was conducted in the PubMed database using keywords and phrases, such as “icariin” AND “erectile dysfunction”, “icariside II” AND “erectile dysfunction”. The publication time is limited to last 20 years. Articles had to be published in peer reviewed journals. Key Content and Findings ICA and its some derivatives showed the specific inhibition on phosphodiesterase type 5 (PDE5) and the promotion of testosterone synthesis. In addition, by regulating various reliable evidence of signaling pathways such as PI3K/AKT, TGFβ1/Smad2, p38/MAPK, Wnt and secretion of various cytokines, ICA and ICA derivatives can activate endogenous stem cells (ESCs) leading to endothelial cell and smooth muscle cell proliferation, nerve regeneration and fibrosis inhibition, repair pathological changes in penile tissue and improve erectile function. Conclusions ICA and some of its derivatives could be a potential treatment for restoring spontaneous erections. In addition ICA and his derivatives may also be valuable as a regenerative medicine approach for other diseases, but more clinical and basic researches with high quality and large samples are recommended.
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Affiliation(s)
- Yuanjie Niu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Guiting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA, USA
| | - Jiancheng Pan
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongde Xu
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Qiliang Cai
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Luan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yegang Chen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Yuhong Feng
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Xiaoqing Yang
- China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China
| | - Wenjie Tian
- Department of Urology, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Wong Jin Bae
- Department of Urology, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Ruili Guan
- Andrology Center, Peking University First Hospital, Peking University, Beijing, China
| | - Zhongcheng Xin
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,China-Korea Joint Research Center for Male Reproductive and Sexual Medicine, Institute of Urology, Tianjin, China.,Andrology Center, Peking University First Hospital, Peking University, Beijing, China
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Dentin Biomodification with Flavonoids and Calcium Phosphate Ion Clusters to Improve Dentin Bonding Stability. MATERIALS 2022; 15:ma15041494. [PMID: 35208035 PMCID: PMC8879567 DOI: 10.3390/ma15041494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023]
Abstract
The purpose of this study was to evaluate the effects of flavonoids and calcium phosphate ion clusters (CPIC) on dentin bonding stability. Seven experimental solutions were synthesized using icaritin (ICT), fisetin (FIS), silibinin (SIB), CPIC, and combinations of one of three flavonoids and CPIC (ICT + C, FIS + C, SIB + C). The experimental solutions were applied to demineralized dentin prior to the application of a universal adhesive. A group without any experimental solution served as a control. Dentin specimens pretreated with the experimental solutions were assayed using Fourier transform infrared (FTIR) spectroscopy. The microtensile bond strength (µTBS) and nanoleakage were evaluated at 24 h and after 10,000 thermocycles. FIS and ICT + C showed significantly higher µTBS than the control group at 24 h. CPIC, ICT + C, FIS + C, and SIB + C showed significantly higher µTBS than the control group after thermocycling. After thermocycling, silver infiltration into the hybrid layer and interfacial gaps was more noticeable in the control group than in the other groups. The FTIR spectra revealed the formation of apatitic minerals in the demineralized dentin in the flavonoid and CPIC combination groups. The pretreatment of demineralized dentin with flavonoids and CPIC improved dentin bonding stability. The flavonoid and CPIC combinations preserved dentin bond strength.
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Yong EL, Cheong WF, Huang Z, Thu WPP, Cazenave-Gassiot A, Seng KY, Logan S. Randomized, double-blind, placebo-controlled trial to examine the safety, pharmacokinetics and effects of Epimedium prenylflavonoids, on bone specific alkaline phosphatase and the osteoclast adaptor protein TRAF6 in post-menopausal women. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 91:153680. [PMID: 34352588 DOI: 10.1016/j.phymed.2021.153680] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/04/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Fragility fractures due to menopausal osteoporosis are a major cause of morbidity and mortality. Osteoporotic medications have substantial side effects that limit long term use. HYPOTHESES Ingestion of a purified extract of Epimedium spp. (EP) is safe, can increase serum levels of prenylflavonoid metabolites, exert positive changes in bone specific alkaline phosphatase (BSAP), suppress of tumor necrosis factor receptor associated factor 6 (TRAF6) protein in osteoclast-precursor monocytes in peripheral blood and therefore have the potential to reduce post-menopausal bone loss. STUDY DESIGN & METHODS Healthy postmenopausal women were randomized in a double-blind fashion to consume either EP prenylflavonoid extract (740 mg daily) or placebo daily for 6 weeks. The main outcome measures were safety and pharmacokinetics of EP flavonoids. Fasting blood was collected at 3- and 6-weeks, and two weeks after stopping medication for safety evaluations and measurement of BSAP. Peripheral blood monocytes were harvested for measurement of TRAF6 levels. Serum levels of the EP metabolites icariin, icariside I & II, icaritin and desmethylicaritin were measured using tandem mass spectrometry, and non-compartmental pharmacokinetic analyses performed using WinNonlin software. RESULTS Between October 2018 and Jun 2020, 58 postmenopausal women, aged 57.9 ± 8.9 years, were randomized and completed the study. Consumption of EP prenylflavonoids was not associated with any significant adverse symptoms, with no changes in hepatic, hematological, and renal parameters observed. The main metabolites detected in sera after ingestion of EP prenylflavonoid capsules were desmethylicaritin, icaritin and icariside II. Icariin and icariside I were below detection levels. Ingestion of EP prenylflavonoids induced a median Cmax and AUC0→∞ for desmethylicaritin of 60.9 nM, and 157.9 nM ×day, respectively; and were associated with higher levels of BSAP (p < 0.05) and a trend (p = 0.068) towards lower levels of TRAF6 in peripheral blood monocytes eight weeks after commencing prenylflavonoid ingestion. Prenylflavonoid metabolites were not detected in the sera of placebo participants. CONCLUSIONS Despite the widespread consumption of EP extracts, the safety, mechanisms of action of their bioactive compounds, and therapeutic indications in humans are unknown. Daily consumption of EP prenylflavonoids for six weeks was safe. The predominant metabolite in sera was desmethylicaritin. Rise in prenylflavonoid metabolites was associated with higher levels of the bone anabolic marker BSAP, suggesting potential therapeutic value for post-menopausal osteoporosis.
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Affiliation(s)
- Eu-Leong Yong
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore.
| | - Wei Fun Cheong
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
| | - Zhongwei Huang
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore; Institute of Molecular and Cell Biology, Agency of Science, Technology and Research, 138673 Singapore
| | - Win Pa Pa Thu
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
| | - Amaury Cazenave-Gassiot
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, 117456 Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117596 Singapore
| | - Kok Yong Seng
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600 Singapore
| | - Susan Logan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
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Li Y, Dai S, Huang N, Wu J, Yu C, Luo Y. Icaritin and icariin reduce p-Tau levels in a cell model of Alzheimer's disease by downregulating glycogen synthase kinase 3β. Biotechnol Appl Biochem 2021; 69:355-363. [PMID: 33502043 DOI: 10.1002/bab.2114] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/16/2021] [Indexed: 11/09/2022]
Abstract
This study aimed to explore the neuroprotective effect of icariin/icaritin (ICA/ICT) and the role of ICA/ICT in the treatment of Alzheimer's disease (AD). ICA and ICT were used to treat okadaic acid (OA)-induced Tau hyperphosphorylation in SH-SY5Y cells. We detected the relative changes in Tau, p-Tau, protein phosphatase 2A (PP2A), and glycogen synthase kinase 3β (GSK-3β) by Western blotting and enzyme-linked immunosorbent assay. At 40 nmol/L OA, the cell viability of the SH-SY5Y cells was significantly changed. We used different concentrations of ICA and IC to treat AD model cells and found that the effect of 2.5 μmol/L ICA and 1 μmol/L ICT was best after 48 H of treatment. After SH-SY5Y cell induction, the p-Tau levels were increased (P < 0.05); after the ICA/ICT treatment, the p-Tau and GSK-3β levels were decreased (P < 0.05), although PP2A expression did not change (P > 0.05). We found that ICA and ICT exert an effect on AD model cells by decreasing the levels of GSK-3β and p-Tau. The therapeutic effect of ICT is slightly better than that of ICA. Although these drugs were effective in the cell model, more studies are required to determine whether they are promising for the treatment and prevention of AD.
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Affiliation(s)
- Ying Li
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China.,Department of Neurology, First People's Hospital of Guiyang, Guiyang, Guizhou, People's Republic of China
| | - Shirui Dai
- XiangYa School of Medicine, Central South University, Changsha, Hunan, People's Republic of China
| | - Nanqu Huang
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
| | - Jie Wu
- Central Laboratory, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
| | - Changyin Yu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Yong Luo
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University/First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
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Kwesiga G, Kelling A, Kersting S, Sperlich E, von Nickisch-Rosenegk M, Schmidt B. Total Syntheses of Prenylated Isoflavones from Erythrina sacleuxii and Their Antibacterial Activity: 5-Deoxy-3'-prenylbiochanin A and Erysubin F. JOURNAL OF NATURAL PRODUCTS 2020; 83:3445-3453. [PMID: 33170684 DOI: 10.1021/acs.jnatprod.0c00932] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The prenylated isoflavones 5-deoxyprenylbiochanin A (7-hydroxy-4'-methoxy-3'-prenylisoflavone) and erysubin F (7,4'-dihydroxy-8,3'-diprenylisoflavone) were synthesized for the first time, starting from mono- or di-O-allylated chalcones, and the structure of 5-deoxy-3'-prenylbiochanin A was corroborated by single-crystal X-ray diffraction analysis. Flavanones are key intermediates in the synthesis. Their reaction with hypervalent iodine reagents affords isoflavones via a 2,3-oxidative rearrangement and the corresponding flavone isomers via 2,3-dehydrogenation. This enabled a synthesis of 7,4'-dihydroxy-8,3'-diprenylflavone, a non-natural regioisomer of erysubin F. Erysubin F (8), 7,4'-dihydroxy-8,3'-diprenylflavone (27), and 5-deoxy-3'-prenylbiochanin A (7) were tested against three bacterial strains and one fungal pathogen. All three compounds are inactive against Salmonella enterica subsp. enterica (NCTC 13349), Escherichia coli (ATCC 25922), and Candida albicans (ATCC 90028), with MIC values greater than 80.0 μM. The diprenylated natural product erysubin F (8) and its flavone isomer 7,4'-dihydroxy-8,3'-diprenylflavone (27) show in vitro activity against methicillin-resistant Staphylococcus aureus (MRSA, ATCC 43300) at MIC values of 15.4 and 20.5 μM, respectively. In contrast, the monoprenylated 5-deoxy-3'-prenylbiochanin A (7) is inactive against this MRSA strain.
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Affiliation(s)
- George Kwesiga
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany
| | - Alexandra Kelling
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany
| | - Sebastian Kersting
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB), Am Muehlenberg 13, D-14476 Potsdam-Golm, Germany
| | - Eric Sperlich
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany
| | - Markus von Nickisch-Rosenegk
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB), Am Muehlenberg 13, D-14476 Potsdam-Golm, Germany
| | - Bernd Schmidt
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany
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Sharifi S, Moghaddam FA, Abedi A, Maleki Dizaj S, Ahmadian S, Abdolahinia ED, Khatibi SMH, Samiei M. Phytochemicals impact on osteogenic differentiation of mesenchymal stem cells. Biofactors 2020; 46:874-893. [PMID: 33037744 DOI: 10.1002/biof.1682] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 12/19/2022]
Abstract
Medicinal plants have always been utilized for the prevention and treatment of the spread of different diseases all around the world. To name some traditional medicine that has been used over centuries, we can refer to phytochemicals such as naringin, icariin, genistein, and resveratrol gained from plants. Osteogenic differentiation and mineralization of stem cells can be the result of specific bioactive compounds from plants. One of the most appealing choices for therapy can be mesenchymal stem cells (MSCs) because it has a great capability of self-renewal and differentiation into three descendants, namely, endoderm, mesoderm, and ectoderm. Stem cell gives us the glad tidings of great advances in tissue regeneration and transplantation field for treatment of diseases. Using plant bioactive phytochemicals also holds tremendous promises in treating diseases such as osteoporosis. The purpose of the present review article thus is to investigate what are the roles and consequences of phytochemicals on osteogenic differentiation of MSCs.
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Affiliation(s)
- Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Atefeh Abedi
- Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Maleki Dizaj
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahin Ahmadian
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Elaheh Dalir Abdolahinia
- Research Center of Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mohammad Samiei
- Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Wang M, Gao H, Li W, Wu B. Icariin and its metabolites regulate lipid metabolism: From effects to molecular mechanisms. Biomed Pharmacother 2020; 131:110675. [PMID: 32861069 DOI: 10.1016/j.biopha.2020.110675] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/16/2020] [Accepted: 08/20/2020] [Indexed: 02/07/2023] Open
Abstract
Icariin has a variety of biological activities, such as lipid-lowering effects, and has attracted widespread attention in recent years. However, it is not clear whether lipid-lowering effect is that multiple metabolites or a particular component plays a major role. It is known that icariin has a variety of metabolites in the body, including icariside I, icariside II, icaritin, desmethylicaritin, and other metabolites. Many of these studies have shown that the metabolites of icariin have a lipid-lowering effect. This paper focuses on the lipid-regulating effects of icariin and its metabolites in vitro and in vivo, and highlights the mechanisms involved. Icariin may have potential in the development of therapeutic strategies to regulate lipid metabolism.
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Affiliation(s)
- Miao Wang
- Department of Rheumatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, PR China
| | - Hongyan Gao
- Chongqing Key Laboratory of Traditional Chinese Medicine to Prevent and Treat Autoimmune Diseases, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, PR China; Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 611137, PR China
| | - Weihong Li
- Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 611137, PR China.
| | - Bin Wu
- Department of Rheumatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, PR China; Chongqing Key Laboratory of Traditional Chinese Medicine to Prevent and Treat Autoimmune Diseases, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, PR China.
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10
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Abdelaziz AS, Kamel MA, Ahmed AI, Shalaby SI, El-darier SM, Magdy Beshbishy A, Batiha GES, Alomar SY, Khodeer DM. Chemotherapeutic Potential of Epimedium brevicornum Extract: The cGMP-Specific PDE5 Inhibitor as Anti-Infertility Agent Following Long-Term Administration of Tramadol in Male Rats. Antibiotics (Basel) 2020; 9:antibiotics9060318. [PMID: 32545153 PMCID: PMC7345865 DOI: 10.3390/antibiotics9060318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 12/16/2022] Open
Abstract
Epimedium brevicornum Maxim (EbM) is a well-known Chinese herb that has been widely used for the treatment of several diseases. The main purpose of this study is to examine the role of Epimedium brevicornum extract in certain andrological parameters in rats as a natural modulator for adverse viewpoints associated with chronic administration of tramadol (TAM). Fifty rats were categorized into five groups. Untreated rats were known as Group I, whereas rats in Groups II and III were administered 2.43 g/kg/day of E. brevicornum extract and 50 mg/kg/day of TAM for 130 consecutive days, respectively. Both of Groups IV and V were administered TAM for 65 successive days, followed by concomitant use of both drugs for another 65 days, with the E. brevicornum extract at doses of 0.81 and 2.43 g/kg/day, respectively. TAM showed an injurious effect on sperm attributes, serum hormones, tissue malondialdehyde, superoxide dismutase, and nitric oxide. Elevation of the apoptotic marker Bax and a reduction of Bcl2 were recorded. Histopathological abnormalities have been reported in rat testicles. Rats treated with E. brevicornum extract with TAM showed an improvement in all the parameters tested. It could be presumed that E. brevicornum extract plus TAM exhibits a promising effect on the enhancement of male anti-infertility effects.
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Affiliation(s)
- Ahmed S. Abdelaziz
- Pharmacology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
- Correspondence: (A.S.A.); (G.E.-S.B.); (S.Y.A.); Tel.: +20-45-271-6024 (G.E.-S.B.); Fax: +20-45-271-6024 (G.E.-S.B.)
| | - Mohamed A. Kamel
- Pharmacology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Amany I. Ahmed
- Biochemistry Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Shimaa I. Shalaby
- Physiology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Salama M. El-darier
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria 21568, Egypt;
| | - Amany Magdy Beshbishy
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-13, Inada-cho, Obihiro 080-8555, Hokkaido, Japan;
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Al Beheira, Egypt
- Correspondence: (A.S.A.); (G.E.-S.B.); (S.Y.A.); Tel.: +20-45-271-6024 (G.E.-S.B.); Fax: +20-45-271-6024 (G.E.-S.B.)
| | - Suliman Y. Alomar
- Doping Research Chair, Department of Zoology, College of Science, King Saud University, Riyadh 11495, Saudi Arabia
- Correspondence: (A.S.A.); (G.E.-S.B.); (S.Y.A.); Tel.: +20-45-271-6024 (G.E.-S.B.); Fax: +20-45-271-6024 (G.E.-S.B.)
| | - Dina M. Khodeer
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt;
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11
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Sun YS, Thakur K, Hu F, Zhang JG, Wei ZJ. Icariside II inhibits tumorigenesis via inhibiting AKT/Cyclin E/ CDK 2 pathway and activating mitochondria-dependent pathway. Pharmacol Res 2019; 152:104616. [PMID: 31883767 DOI: 10.1016/j.phrs.2019.104616] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/02/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022]
Abstract
Cervical cancer contributes largely in women cancer-related mortality. Herein, Icariside II, a flavonoid extracted from edible and pharmaceutical plant Epimedium brevicornum Maxim, exhibited significant anticancer activity on cervical cancer. At first, it was observed that Icariside II inhibited Hela cell proliferation at IC50 (9.2 μM) and the growth of Hela-originated xenografts in BALB/c nude mice. Next, we studied the underlying mechanisms of Icariside II from the aspects of cell growth and cell death. As for cell growth, Icariside II arrested cell cycle at G0/G1 phase through AKT/Cyclin E/CDK 2 from transcriptional and translational levels. As for cell death, Flow Cytometry and Immunofluorescence showed that Icariside II promoted cell death in a dose-dependet manner. And, Icariside II turned to activate the mitochondria-dependent pathway Caspase 9/Caspase 3 much more significantly than death receptor pathway Caspase 8/Caspase 3. Taken together, Icariside II presented anticancer effect on cervical cancer both in vitro and in vivo. Our study provides the evidence that Icariside II can be used as a suitable novel agent in cervical cancer treatment.
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Affiliation(s)
- Ya-Sai Sun
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Jian-Guo Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
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12
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Huang Z, Yang Y, Huang L, Zhang S. Pharmacokinetics and metabolism of icaritin in rats by UPLC-MS/MS. Food Sci Nutr 2019; 7:4001-4006. [PMID: 31890179 PMCID: PMC6924312 DOI: 10.1002/fsn3.1263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/07/2019] [Accepted: 10/09/2019] [Indexed: 11/24/2022] Open
Abstract
Icaritin (ICT) has distinct bioactivities, especially known for its beneficial effects on bone-related degenerative disorders; however, its pharmacokinetic properties remain unknown. A novel developed UPLC-MS/MS method for the determination of ICT and its main metabolite glucuronidated icaritin (GICT) was firstly applied to pharmacokinetic and metabolism studies of ICT in female rats, which were intraperitoneally given 40 mg/kg ICT. Following the protein precipitation of plasma samples with acetonitrile, ICT and GICT were separated on a C18 column using gradient elution mode and quantified in the multiple reaction monitoring mode. The linearities were acceptable for ICT (r = 0.9960) and GICT (r = 0.9968), and the lower limit of quantification values was 0.5 and 5 ng/ml, respectively. The accuracy fell in the range of 92.0%-103.1% and precisions were within 9.5%. Good linearity, accuracy, precision, and recovery were achieved for the UPLC-MS/MS method. ICT was predominantly and rapidly biotransformed to GICT which was slowly eliminated in vivo with a terminal half-life value of 4.51 hr. Pharmacokinetics of pure ICT eliminated biotransformation interference of Epimedium extract and disclosed genuine pharmacokinetic manner of ICT, as well as firstly elucidated low concentration and bioavailability of ICT in rat plasma.
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Affiliation(s)
- Zhen‐Wu Huang
- National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijingChina
| | - Yue‐Xin Yang
- National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijingChina
| | - Ling‐He Huang
- Woods Worth CollegeUniversity of TorontoTorontoONCanada
| | - Shuang‐Qing Zhang
- National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijingChina
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13
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Quantitative structure-activity relationship for estrogenic flavonoids from Psoralea corylifolia. J Pharm Biomed Anal 2018; 161:129-135. [DOI: 10.1016/j.jpba.2018.08.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/16/2018] [Accepted: 08/19/2018] [Indexed: 01/08/2023]
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14
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Huang L, Wang X, Cao H, Li L, Chow DHK, Tian L, Wu H, Zhang J, Wang N, Zheng L, Yao X, Yang Z, Qin L. A bone-targeting delivery system carrying osteogenic phytomolecule icaritin prevents osteoporosis in mice. Biomaterials 2018; 182:58-71. [DOI: 10.1016/j.biomaterials.2018.07.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/19/2022]
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Jin J, Wang H, Hua X, Chen D, Huang C, Chen Z. An outline for the pharmacological effect of icariin in the nervous system. Eur J Pharmacol 2018; 842:20-32. [PMID: 30342950 DOI: 10.1016/j.ejphar.2018.10.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/13/2018] [Accepted: 10/09/2018] [Indexed: 12/13/2022]
Abstract
Icariin is a major active component of the traditional herb Epimedium, also known as Horny Goat Weed. It has been extensively studied throughout the past several years and is known to exert anti-oxidative, anti-neuroinflammatory, and anti-apoptotic effects. It is now being considered as a potential therapeutic agent for a wide variety of disorders, ranging from neoplasm to cardiovascular disease. More recent studies have shown that icariin exhibits potential preventive and/or therapeutic effects in the nervous system. For example, icariin can prevent the production of amyloid β (1-42) and inhibit the expression of amyloid precursor protein (APP) and β-site APP cleaving enzyme 1 (BACE-1) in animal models of Alzheimer's disease (AD). Icariin has been shown to mitigate pro-inflammatory responses of microglia in culture and in animal models of cerebral ischemia, depression, Parkinson's disease (PD), and multiple sclerosis (MS). Icariin also prevents the neurotoxicity induced by hydrogen peroxide (H2O2), endoplasmic reticulum (ER) stress, ibotenic acid, and homocysteine. In addition, icariin is implicated in facilitating learning and memory in both normal aging animals and disease models. To date, we still have no consolidated source of knowledge about the pharmacological effects of icariin in the nervous system, though its roles in other tissues have been reviewed in recent years. Here, we summarize the pharmacological development of icariin as well as its possible mechanisms in prevention and/or therapy of disorders afflicting the nervous system in hope of expanding the knowledge about the preventive and/or therapeutic effect of icariin in brain disorders.
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Affiliation(s)
- Jie Jin
- Invasive Technology Department, Nantong First People's Hospital, the Second Affiliated Hospital of Nantong University, #6 North Road Hai'er Xiang, Nantong, Jiangsu 226001, China
| | - Hui Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China; Department of Neuroscience & Cell Biology, Rutgers-Robert Wood Johnson Medical School, 675 Hoes lane, Piscataway, 08854 New Jersey, United States
| | - Xiaoying Hua
- Department of Pharmacology, Wuxi Ninth People's Hospital, #999 Liangxi Road, Wu xi, Jiangsu 226001, China
| | - Dongjian Chen
- Invasive Technology Department, Nantong First People's Hospital, the Second Affiliated Hospital of Nantong University, #6 North Road Hai'er Xiang, Nantong, Jiangsu 226001, China
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Zhuo Chen
- Invasive Technology Department, Nantong First People's Hospital, the Second Affiliated Hospital of Nantong University, #6 North Road Hai'er Xiang, Nantong, Jiangsu 226001, China.
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Qiao C, Ye W, Li S, Wang H, Ding X. Icariin modulates mitochondrial function and apoptosis in high glucose-induced glomerular podocytes through G protein-coupled estrogen receptors. Mol Cell Endocrinol 2018; 473:146-155. [PMID: 29373840 DOI: 10.1016/j.mce.2018.01.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 01/20/2018] [Accepted: 01/22/2018] [Indexed: 02/06/2023]
Abstract
Podocyte apoptosis in glomerular lesions has been found to have a dominant role in the progression of diabetic nephropathy. The present research aimed to explore the beneficial effect of icariin on diabetic podocytes by interfering in the process of apoptosis. Podocyte apoptosis was significantly exacerbated after high glucose treatment, with the level of reactive oxygen species (ROS) increasing simultaneously. Here, we demonstrated that icariin, which is a G protein-coupled estrogen receptor 1 (GPER) agonist, inhibited podocyte apoptosis by reducing ROS, maintaining the integrity of mitochondrial membranes. Moreover, the stabilization of mitochondria by icariin was reversed when GPER was knocked down in podocytes. Meanwhile, icariin inhibited the caspase cascade in podocyte apoptosis by promoting Bcl-2 expression and mitochondrial translocation. The above findings at least partly elucidated the mechanism by which icariin stabilized podocytes by inducing the mitochondrial Bcl-2 translocation and therefore preventing downstream apoptosis.
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Affiliation(s)
- Chen Qiao
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Wenjuan Ye
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Sai Li
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Hui Wang
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China
| | - Xuansheng Ding
- China Pharmaceutical University, School of Basic Medicine and Clinical Pharmacy, Nanjing, 211198, China.
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Sun M, Yin Y, Wei J, Chen X, Ouyang H, Chang Y, Gao X, He J. Development and Validation of a HPLC-MS/MS Method for Simultaneous Determination of Twelve Bioactive Compounds in Epimedium: Application to a Pharmacokinetic Study in Rats. Molecules 2018; 23:molecules23061322. [PMID: 29857519 PMCID: PMC6100475 DOI: 10.3390/molecules23061322] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 05/24/2018] [Accepted: 05/28/2018] [Indexed: 11/21/2022] Open
Abstract
A rapid and reliable HPLC-MS/MS method has been developed and validated for the simultaneous quantification of twelve bioactive compounds (baohuoside II, baohuoside I, sagittatoside A, sagittatoside B, magnoflorine, epimedin A, epimedin B, epimedin C, chlorogenic acid, neochlorogenic acid, cryptochlorogenic acid and icariin) in rat plasma. The collected plasma samples were prepared by protein precipitate with acetonitrile. The twelve compounds were separated on a CORTECS®C18 column (4.6 mm × 150 mm, 2.7 μm) with a gradient mobile phase system of 0.1% (v/v) formic acid and acetonitrile at a flow rate of 0.3 mL/min. All of the analytes were quantitated using electrospray ionization (ESI) in negative ion mode with selected reaction monitoring (SRM). The intra- and inter-day accuracy ranged from −5.6% to 13.0%, and the precisions of the analytes were less than 10.9%. The mean recoveries of the analytes were in the range of 60.66% to 99.77% and the matrix effect ranged from 93.08% to 119.84%. Stability studies proved that the analytes were stable under the tested conditions, with a relative standard deviation (RSD) lower than 11.7%. The developed method was successfully applied to evaluating the pharmacokinetic study of twelve bioactive compounds after oral administration of Epimedium extract in rat.
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Affiliation(s)
- Mengjie Sun
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Yanwei Yin
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Juan Wei
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Xiaopeng Chen
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Huizi Ouyang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Yanxu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Xiumei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Jun He
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
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Schultze C, Schmidt B. Prenylcoumarins in One or Two Steps by a Microwave-Promoted Tandem Claisen Rearrangement/Wittig Olefination/Cyclization Sequence. J Org Chem 2018; 83:5210-5224. [DOI: 10.1021/acs.joc.8b00667] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Christiane Schultze
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
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19
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Calvo-Castro LA, Burkard M, Sus N, Scheubeck G, Leischner C, Lauer UM, Bosy-Westphal A, Hund V, Busch C, Venturelli S, Frank J. The Oral Bioavailability of 8-Prenylnaringenin from Hops (Humulus Lupulus
L.) in Healthy Women and Men is Significantly Higher than that of its Positional Isomer 6-Prenylnaringenin in a Randomized Crossover Trial. Mol Nutr Food Res 2018; 62:e1700838. [DOI: 10.1002/mnfr.201700838] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/30/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Laura A. Calvo-Castro
- Institute of Biological Chemistry and Nutrition; University of Hohenheim; Stuttgart Germany
- Centro de Investigación en Biotecnología; Instituto Tecnológico de Costa Rica; Cartago Costa Rica
| | - Markus Burkard
- Institute of Physiology; Department of Vegetative and Clinical Physiology; University Hospital Tuebingen; Tuebingen Germany
| | - Nadine Sus
- Institute of Biological Chemistry and Nutrition; University of Hohenheim; Stuttgart Germany
| | - Gabriel Scheubeck
- Department of Internal Medicine VIII; University Hospital Tuebingen; Tuebingen Germany
| | - Christian Leischner
- Institute of Physiology; Department of Vegetative and Clinical Physiology; University Hospital Tuebingen; Tuebingen Germany
| | - Ulrich M. Lauer
- Department of Internal Medicine VIII; University Hospital Tuebingen; Tuebingen Germany
| | - Anja Bosy-Westphal
- Institute of Nutritional Medicine; University of Hohenheim; Stuttgart Germany
| | - Verena Hund
- Hospital Pharmacy; University Hospital Tuebingen; Tuebingen Germany
| | - Christian Busch
- Department of Dermatology and Allergology; University of Tuebingen; Tuebingen Germany
| | - Sascha Venturelli
- Institute of Physiology; Department of Vegetative and Clinical Physiology; University Hospital Tuebingen; Tuebingen Germany
| | - Jan Frank
- Institute of Biological Chemistry and Nutrition; University of Hohenheim; Stuttgart Germany
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Wang Z, Wang D, Yang D, Zhen W, Zhang J, Peng S. The effect of icariin on bone metabolism and its potential clinical application. Osteoporos Int 2018; 29:535-544. [PMID: 29110063 DOI: 10.1007/s00198-017-4255-1] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/04/2017] [Indexed: 12/28/2022]
Abstract
Osteoporosis is a bone disease characterized by reduced bone mass, which leads to increased risk of bone fractures, and poses a significant risk to public health, especially in the elderly population. The traditional Chinese medicinal herb Epimedii has been utilized for centuries to treat bone fracture and bone loss. Icariin is a prenylated flavonol glycoside isolated from Epimedium herb, and has been shown to be the main bioactive component. This review provides a comprehensive survey of previous studies on icariin, including its structure and function, effect on bone metabolism, and potential for clinical application. These studies show that icariin promotes bone formation by stimulating osteogenic differentiation of BMSCs (bone marrow-derived mesenchymal stem cells), while inhibiting osteoclastogenic differentiation and the bone resorption activity of osteoclasts. Furthermore, icariin has been shown to be more potent than other flavonoid compounds in promoting osteogenic differentiation and maturation of osteoblasts. A 24-month randomized double-blind placebo-controlled clinical trial reported that icariin was effective in preventing postmenopausal osteoporosis with relatively low side effects. In conclusion, icariin may represent a class of flavonoids with bone-promoting activity, which could be used as potential treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Z Wang
- Department of Spine Surgery and Institute of Orthopaedic Research, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China
| | - D Wang
- Department of Spine Surgery and Institute of Orthopaedic Research, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China
| | - D Yang
- Department of Spine Surgery and Institute of Orthopaedic Research, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China
| | - W Zhen
- Department of Spine Surgery and Institute of Orthopaedic Research, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China
| | - J Zhang
- Department of Outpatient Clinics, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China.
| | - S Peng
- Department of Spine Surgery and Institute of Orthopaedic Research, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen, 518020, China.
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Lai Y, Cao H, Wang X, Chen S, Zhang M, Wang N, Yao Z, Dai Y, Xie X, Zhang P, Yao X, Qin L. Porous composite scaffold incorporating osteogenic phytomolecule icariin for promoting skeletal regeneration in challenging osteonecrotic bone in rabbits. Biomaterials 2017; 153:1-13. [PMID: 29096397 DOI: 10.1016/j.biomaterials.2017.10.025] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/07/2017] [Accepted: 10/13/2017] [Indexed: 10/18/2022]
Abstract
Steroid-associated osteonecrosis (SAON) often requires surgical core decompression (CD) in the early stage for removal of necrotic bone to facilitate repair where bone grafts are needed for filling bone defect and avoiding subsequent joint collapse. In this study, we developed a bioactive composite scaffold incorporated with icariin, a unique phytomolecule that can provide structural and mechanical support and facilitate bone regeneration to fill into bone defects after surgical CD in established SAON rabbit model. An innovative low-temperature 3D printing technology was used to fabricate the poly (lactic-co-glycolic acid)/β-calcium phosphate/icariin (PLGA/TCP/Icariin, PTI) scaffold. The cytocompatibility of the PTI scaffold was tested in vitro, and the osteogenesis properties of PTI scaffolds were assessed in vivo in the SAON rabbit models. Our results showed that the fabricated PTI scaffold had a well-designed biomimic structure that was precisely printed to provide increased mechanical support and stable icariin release from the scaffold for bone regeneration. Furthermore, our in vivo study indicated that the PTI scaffold could enhanced the mechanical properties of new bone tissues and improved angiogenesis within the implanted region in SAON rabbit model than those of PLGA/TCP (PT) scaffold. The underlying osteoblastic mechanism was investigated using MC3T3-E1 cells in vitro and revealed that icariin could facilitate MC3T3-E1 cells ingrowth into the PTI scaffold and regulate osteoblastic differentiation. The PTI scaffold exhibited superior biodegradability, biocompatibility, and osteogenic capability compared with those of PT scaffold. In summary, the PTI composite scaffold which incorporated bioactive phyto-compounds is a promising potential strategy for bone tissue engineering and regeneration in patients with challenging SAON.
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Affiliation(s)
- Yuxiao Lai
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Huijuan Cao
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, PR China
| | - Xinluan Wang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China.
| | - Shukui Chen
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Ming Zhang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Nan Wang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Zhihong Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yi Dai
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xinhui Xie
- Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China; The Department of Orthopedics, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Peng Zhang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, PR China
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ling Qin
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China
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Zhao Y, Chen S, Wang Y, Lv C, Wang J, Lu J. Effect of drying processes on prenylflavonoid content and antioxidant activity of Epimedium koreanum Nakai. J Food Drug Anal 2017; 26:796-806. [PMID: 29567251 PMCID: PMC9322203 DOI: 10.1016/j.jfda.2017.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/19/2017] [Accepted: 05/23/2017] [Indexed: 11/25/2022] Open
Abstract
Epimedium koreanum Nakai is a famous Chinese herbal medicine for the treatment of impotence, osteoporosis, immune suppression and cardiovascular diseases. Drying is the most common and fundamental procedure in post-harvest processing of E. koreanum, which contributes to the variations of flavonoid content, especially prenylflavonoids, the bioactive components. In present study, effect of drying processes on flavonoid content and antioxidant activity were investigated. High performance liquid chromatography coupled with diode-array detection and electrospray ionization quadrupole time-of-flight tandem mass spectrometry methods were employed. Twenty seven compounds were identified and 11 of them, including eight prenylflavonoids and three other types of flavonoids, were further quantified. The antioxidant activity of E. koreanum was evaluated by the 2,2-diphenyl-1-picrylhydrazyl free radical scavenging method. The results showed that content of the eight prenylflavonoids exhibited significant variations after different drying processes, especially icariin and baohuoside I. The variation tendency of antioxidant activity was positively correlated with the content of total flavonoid, afzelin and icariin.
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Affiliation(s)
- Yudan Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Shifeng Chen
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yadan Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chongning Lv
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jing Wang
- Department of Resources of Chinese Medicinal Materials, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Jincai Lu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Zhang SQ, Zhang SZ. Oral absorption, distribution, metabolism, and excretion of icaritin in rats by Q-TOF and UHPLC-MS/MS. Drug Test Anal 2017; 9:1604-1610. [PMID: 28303675 DOI: 10.1002/dta.2188] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/04/2017] [Accepted: 03/14/2017] [Indexed: 12/29/2022]
Abstract
Icaritin (ICT) displays numerous pharmacological activities for the treatment of various cancers, osteoporosis, inflammation, and angiocardiopathy. The absorption, distribution, metabolism, and excretion of ICT still remain unknown. ICT was administered to rats at 2 mg/kg for intravenous injection or 40 mg/kg for oral route. Major metabolite of ICT was identified using quadrupole time-of-flight (Q-TOF), and ICT and its major metabolite were quantified in plasma, tissues, urine, faeces, and bile by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). A total of 24 metabolites of ICT in plasma were identified and mono C-7 glucuronide glucuronidated icaritin (GICT) was the major metabolite of ICT after oral administration. The absolute bioavailability of ICT was 4.33% although ICT was rapidly absorbed into the blood. For oral administration, concentrations of GICT at various time points was 6.38-8.81-fold higher than those of ICT, and the area under the curve (AUC) of GICT was about 8-fold higher than that of ICT, while AUC values of ICT and GICT were almost equal for intravenous injection. Approximately 65.7% ICT and 42.7% GICT were distributed in liver and kidney, respectively. Unabsorbed ICT was mainly excreted as the parent form in faeces with at least 60% of administered dose during 24 h, whereas absorbed ICT was predominantly excreted as GICT from urine with 2.74% of administered dose accounting for 63.28% of absorbed drug. ICT was rapidly absorbed into the blood although a large amount of ICT remained unabsorbed, and then rapidly and mainly metabolized to GICT. ICT mainly distributed in liver, while GICT predominantly distributed in kidney. Absorbed ICT and GICT were predominantly excreted via urine, and unabsorbed ICT was mainly excreted as the parent form in faeces. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Shuang-Qing Zhang
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Rd, Beijing, 100050, China
| | - Shi-Zhong Zhang
- Department of Physiology, Medical Science College, China Three Gorges University, 8 University Rd, Yichang, 443002, China
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Han YY, Song MY, Hwang MS, Hwang JH, Park YK, Jung HW. Epimedium koreanum Nakai and its main constituent icariin suppress lipid accumulation during adipocyte differentiation of 3T3-L1 preadipocytes. Chin J Nat Med 2017; 14:671-676. [PMID: 27667512 DOI: 10.1016/s1875-5364(16)30079-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 01/13/2023]
Abstract
Obesity is associated with a number of metabolic abnormalities such as type 2 diabetes and has become a major health problem worldwide. In the present study, we investigated the effects of Epimedium koreanum Nakai (Herba Epimedii, HE) and its main constituent icariin on the adipocyte differentiation in 3T3-L1 preadipocytes. HE extract and icariin significantly reduced lipid accumulation and suppressed the expressions of PPARγ, C/EBPα, and SREBP-1c in 3T3-L1 adipocytes. They also inhibited fatty acid synthase (FAS), acyl-Co A synthase (ACS1), and perilipin. Moreover, HE extract and icariin markedly increased the phosphorylation of AMPK. These results indicated that HE extract and icariin can inhibit the adipocyte differentiation through downregulation of the adipogenic transcription factors, suggesting that HE containing icariin may be used as a potential therapeutic agent in the treatment and prevention of obesity.
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Affiliation(s)
- Yunk-Yung Han
- Korean Medicine R&D Center, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Mi-Young Song
- Korean Medicine R&D Center, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; Department of Rehabilitation Medicine of Korean Medicine, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Min-Sub Hwang
- Department of Acupuncture & Moxibustion, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Ji-Hye Hwang
- Korean Medicine R&D Center, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Yong-Ki Park
- Korean Medicine R&D Center, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; Department of Herbology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Hyo-Won Jung
- Korean Medicine R&D Center, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; Department of Herbology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea.
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Wu T, Shu T, Kang L, Wu J, Xing J, Lu Z, Chen S, Lv J. Icaritin, a novel plant-derived osteoinductive agent, enhances the osteogenic differentiation of human bone marrow- and human adipose tissue-derived mesenchymal stem cells. Int J Mol Med 2017; 39:984-992. [PMID: 28260001 DOI: 10.3892/ijmm.2017.2906] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 01/19/2017] [Indexed: 11/05/2022] Open
Abstract
For the treatment of diseases affecting bones using bone regenerative medicine, there is an urgent need to develop safe, inexpensive drugs that can strongly induce bone formation. In the present study, we systematically investigated the effects of icaritin, a metabolic product of icariin, on the osteogenic differentiation of human bone marrow‑derived mesenchymal stem cells (hBMSCs) and human adipose tissue‑derived stem cells (hADSCs) in vitro. After treatment with icaritin at concentrations of 10‑8-10‑5 M, hBMSCs and hADSCs were examined for alkaline phosphatase activity, osteocalcin (OC) secretion, matrix mineralization and expression levels of bone‑related mRNA and proteins. Data showed that icaritin at concentrations 10‑7-10‑5 M significantly increased alkaline phosphatase activity, OC secretion at different time points, and calcium deposition at day 21. In addition, icaritin upregulated the mRNA expression of genes for bone morphogenetic proteins (BMP‑2, ‑4 and ‑7), bone transcription factors (Runx2 and Dlx5) and bone matrix proteins (ALP, OC and Col‑1). Moreover, icaritin increased the protein levels of BMPs, Runx2 and OC, as detected by western blot analysis. These findings suggest that icaritin enhances the osteogenic differentiation of hBMSCS and hADSCs. Icaritin exerts its potent osteogenic effect possibly by directly stimulating the production of BMPs. Although the osteogenic activity of icaritin in vitro was inferior to that of rhBMP‑2, icaritin displayed better results than icariin. Moreover, the low cost, simple extraction procedure, and an abundance of icaritin make it appealing as a bone regenerative medicine.
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Affiliation(s)
- Tao Wu
- Department of Emergency, Guangdong Provincial Corps Hospital of the Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
| | - Tao Shu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Le Kang
- Department of Orthopaedics, Wuyi TCM Hospital of Jiangmen City, The Sixth Affiliated Hospital of the Medicine College of Jinan University, Jiangmen, Guangdong 529031, P.R. China
| | - Jinhui Wu
- Department of Emergency, Guangdong Provincial Corps Hospital of the Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
| | - Jianzhou Xing
- Department of Emergency, Guangdong Provincial Corps Hospital of the Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
| | - Zhiqin Lu
- Department of Emergency, Guangdong Provincial Corps Hospital of the Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
| | - Shuxiang Chen
- Department of Orthopaedics, Wuyi TCM Hospital of Jiangmen City, The Sixth Affiliated Hospital of the Medicine College of Jinan University, Jiangmen, Guangdong 529031, P.R. China
| | - Jun Lv
- Department of Emergency, Guangdong Provincial Corps Hospital of the Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
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Hao DC, Yang L. Drug metabolism and disposition diversity of Ranunculales phytometabolites: a systems perspective. Expert Opin Drug Metab Toxicol 2016; 12:1047-65. [DOI: 10.1080/17425255.2016.1201068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Da Cheng Hao
- Biotechnology Institute, School of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian, China
| | - Ling Yang
- Pharmaceutical resource discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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Sun F, Zhang ZW, Tan EM, Lim Z, Li Y, Wang XC, Chua SE, Li J, Cheung E, Yong EL. Icaritin suppresses development of neuroendocrine differentiation of prostate cancer through inhibition of IL-6/STAT3 and Aurora kinase A pathways in TRAMP mice. Carcinogenesis 2016; 37:701-711. [DOI: 10.1093/carcin/bgw044] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 04/12/2016] [Indexed: 01/20/2023] Open
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Indran IR, Liang RLZ, Min TE, Yong EL. Preclinical studies and clinical evaluation of compounds from the genus Epimedium for osteoporosis and bone health. Pharmacol Ther 2016; 162:188-205. [PMID: 26820757 DOI: 10.1016/j.pharmthera.2016.01.015] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The morbidity and mortality associated with fractures due to osteoporosis or "porous bone" contributes significantly to global healthcare costs and will increase exponentially with ageing populations. In menopausal women, the onset of menopause and rapid estrogen withdrawal leads to osteoporotic fractures. Healthy bone requires the coordinated remodeling function of osteoclasts, osteoblasts, and osteocytes in the basic bone multicellular unit, regulated by estrogen, RANKL/OPG, ROS, growth factors, and other kinase signaling pathways. Anti-osteoporotic drugs in current use such as hormone replacement therapy, selective estrogen receptor modulators, and bisphosphonates are designed to target these pathways, but all have their limitations. Extracts of the dried aerial parts of the traditional Chinese medicinal plant Epimedium (Berberidaceae) has long been used for bone health. Some nine Epimedium prenylflavonoid compounds have been reported to target estrogen signaling and other bone morphogenesis pathways in mesenchymal stem cell, osteoblast, and osteoclast cell lineages. Epimedium prenylflavonoids and enriched extracts can exert beneficial effects on bone health in estrogen-deficient and other osteoporosis animal models. The development of sensitive and rapid mass chromatographic techniques to quantify compounds extracted from Epimedium, including icariin and icaritin, has been used to standardize production and to study the pharmacokinetics and metabolism of Epimedium in animal models and humans. Recent clinical trials have reported positive effects on bone health, suggesting that compounds or extracts of Epimedium have the potential to be developed as agents, alone or in combination with other drugs, to prevent or delay the onset of osteoporosis and reduce the risk of hip fractures.
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Affiliation(s)
- Inthrani Raja Indran
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ryan Lim Zhen Liang
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tan Ee Min
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Eu-Leong Yong
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Schmidt B, Riemer M, Schilde U. Tandem Claisen Rearrangement/6-endoCyclization Approach to Allylated and Prenylated Chromones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501151] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Comparative study of two types of herbal capsules with different Epimedium species for the prevention of ovariectomised-induced osteoporosis in rats. J Orthop Translat 2015; 4:14-27. [PMID: 30035062 PMCID: PMC5987012 DOI: 10.1016/j.jot.2015.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 06/24/2015] [Accepted: 07/07/2015] [Indexed: 11/21/2022] Open
Abstract
Background/Objective Epimedii Folium is the most important osteogenic herb formulated for the traditional Chinese Medicine Xian Ling Gu Bao (XLGB) capsule. The present study compared XLGB capsules containing two different Epimedium species, i.e., either Epimedium pubescens (XEP) or Epimedium koreanum (XEK), with the focus being on the chemical constituents and antiosteoporotic efficacy. Methods Ultra performance liquid chromatography was used to demonstrate the different chemical constituents. Biomechanical tests, histological, and cytological evaluation were performed to characterise and compare the bone mineral density, bone strength, microstructure of bone tissue, and biological activity between XEP and XEK using an established ovariectomised (OVX) rat model. Results Six flavonoids with different contents between XEK and XEP were identified. As compared with the OVX group, significantly higher bone mineral density, elastic-modulus, and compressive strength were found in both the XEK group and XEP group (p < 0.05 for all, n = 8). Histomorphometric data presented significantly higher osteoblast surface ratio and osteoid area accompanied by significantly lower values of erosion surface and adiopocytes area in two treatment groups (p < 0.05, n = 6). XLGB Fufang with either XEK or XEP all showed significant preventive effects in OVX-induced osteoporosis and deterioration of bone mechanical properties. Conclusion The significance of the current preclinical experimental study was that these two Epimedium species used for formulating XLGB capsules were equally effective for the prevention of oestrogen-depletion induced osteoporosis.
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Ma LM, Xu F, Li FC, Wang JZ, Shang MY, Liu GX, Cai SQ. The profiling and identification of the metabolites of 8-prenylkaempferol and a study on their distribution in rats by high-performance liquid chromatography with diode array detection combined with electrospray ionization ion trap time-of-flight multistage mass spectrometry. Biomed Chromatogr 2015; 30:175-90. [PMID: 26058713 DOI: 10.1002/bmc.3534] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 04/25/2015] [Accepted: 06/03/2015] [Indexed: 11/10/2022]
Abstract
8-Prenylkaempferol is a prenylflavonoid that has various bioactivities and benefits for human health. A high-performance liquid chromatography with a diode array detector combined with electrospray ionization ion trap time-of-flight multistage mass spectrometry (HPLC-DAD-ESI-IT-TOF-MS(n) ) method was established to profile and identify the metabolites of 8-prenylkaempferol in rat in vivo and in vitro, and to study the distribution of these metabolites in rats for the first time. A total of 38 metabolites were detected and tentatively identified, 30 of which were identified as new compounds. The new in vivo metabolic reactions in rats of prenylflavonoids of isomerization, polymerization, sulfation, amino acid conjugation, vitamin C conjugation and other known metabolic reactions were found in the metabolism of 8-prenylkaempferol. The numbers of detected metabolites in feces, urine, plasma, small intestine, stomach, kidneys, liver, heart, lungs, spleen and hepatic S9 fraction were 31, 19, 1, 20, 13, 8, 7, 3, 3, 1 and 11, respectively. This indicated that small intestine and stomach were the major organs in which the 8-prenylkaempferol metabolites were distributed. Furthermore, 16 metabolites were determined to have bioactivities based on the literature and 'PharmMapper' analysis. These findings are useful for better comprehension of the effective forms, target organs and pharmacological actions of 8-prenylkaempferol. Moreover, they provide a reference for the study of the metabolism and distribution of prenylflavonoid aglycone compounds.
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Affiliation(s)
- Li-Man Ma
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Feng Xu
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Feng-Chun Li
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Jing-Zhe Wang
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Ming-Ying Shang
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Guang-Xue Liu
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
| | - Shao-Qing Cai
- Division of Pharmacognosy, School of Pharmaceutical Sciences, Peking University, No. 38 Xueyuan Road, Beijing, 100191, China
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Sun F, Indran IR, Zhang ZW, Tan MHE, Li Y, Lim ZLR, Hua R, Yang C, Soon FF, Li J, Xu HE, Cheung E, Yong EL. A novel prostate cancer therapeutic strategy using icaritin-activated arylhydrocarbon-receptor to co-target androgen receptor and its splice variants. Carcinogenesis 2015; 36:757-68. [PMID: 25908644 DOI: 10.1093/carcin/bgv040] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 03/18/2015] [Indexed: 11/13/2022] Open
Abstract
Persistent androgen receptor (AR) signaling is the key driving force behind progression and development of castration-resistant prostate cancer (CRPC). In many patients, AR COOH-terminal truncated splice variants (ARvs) play a critical role in contributing to the resistance against androgen depletion therapy. Unfortunately, clinically used antiandrogens like bicalutamide (BIC) and enzalutamide (MDV), which target the ligand binding domain, have failed to suppress these AR variants. Here, we report for the first time that a natural prenylflavonoid, icaritin (ICT), can co-target both persistent AR and ARvs. ICT was found to inhibit transcription of key AR-regulated genes, such as KLK3 [prostate-specific antigen (PSA)] and ARvs-regulated genes, such as UBE2C and induce apoptosis in AR-positive prostate cancer (PC) cells. Mechanistically, ICT promoted the degradation of both AR and ARvs by binding to arylhydrocarbon-receptor (AhR) to mediate ubiquitin-proteasomal degradation. Therefore, ICT impaired AR transactivation in PC cells. Knockdown of AhR gene restored AR stability and partially prevented ICT-induced growth suppression. In clinically relevant murine models orthotopically implanted with androgen-sensitive and CRPC cells, ICT was able to target AR and ARvs, to inhibit AR signaling and tumor growth with no apparent toxicity. Our results provide a mechanistic framework for the development of ICT, as a novel lead compound for AR-positive PC therapeutics, especially for those bearing AR splice variants.
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Affiliation(s)
- Feng Sun
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Inthrani R Indran
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Zhi Wei Zhang
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - M H Eileen Tan
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Yu Li
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Z L Ryan Lim
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Rui Hua
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Chong Yang
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore, Cancer Biology and Pharmacology, Genome Institute of Singapore, Agency for Science, Technology and Research, 138672 Singapore, Singapore and
| | - Fen-Fen Soon
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - Jun Li
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore
| | - H Eric Xu
- Laboratory of Structural Sciences, Center for Structural Biology and Drug Discovery, Van Andel Research Institute, 333 Bostwick Avenue, N.E., Grand Rapids, MI 49503, USA
| | - Edwin Cheung
- Cancer Biology and Pharmacology, Genome Institute of Singapore, Agency for Science, Technology and Research, 138672 Singapore, Singapore and
| | - Eu-Leong Yong
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, 119074 Singapore, Singapore,
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Wang C, Wu C, Zhang J, Jin Y. Systematic considerations for a multicomponent pharmacokinetic study of Epimedii wushanensis herba: From method establishment to pharmacokinetic marker selection. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:487-497. [PMID: 25925971 DOI: 10.1016/j.phymed.2015.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 02/09/2015] [Accepted: 02/17/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Prenylflavonoids are major active components of Epimedii wushanensis herba (EWH). The global pharmacokinetics of prenylflavonoids are unclear, as these compounds yield multiple, often unidentified metabolites. PURPOSE This study successfully elucidated the pharmacokinetic profiles of EWH extract and five EWH-derived prenylflavonoid monomers in rats. STUDY DESIGN The study was a comprehensive analysis of metabolic pathways and pharmacokinetic markers. METHODS Major plasma compounds identified after oral administration of EWH-derived prototypes or extract included: (1) prenylflavonoid prototypes, (2) deglycosylated products, and (3) glucuronide conjugates. To select appropriate EWH-derived pharmacokinetic markers, a high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was established to simultaneously monitor 14 major compounds in unhydrolyzed plasma and 10 potential pharmacokinetic markers in hydrolyzed plasma. RESULTS The pharmacokinetic profiles indicated that the glucuronide conjugates of icaritin were the principle circulating metabolites and that total icaritin accounted for ∼99% of prenylflavonoid exposure after administration of EWH-derived materials to rats. To further investigate icaritin as a prospective pharmacokinetic marker, correlation analysis was performed between total icaritin and its glucuronide conjugates, and a strong correlation (r > 0.5) was found, indicating that total icaritin content accurately reflected changes in the exposure levels of the glucuronide conjugates over time. Therefore, icaritin is a sufficient pharmacokinetic marker for evaluating dynamic prenylflavonoid exposure levels. Next, a mathematical model was developed based on the prenylflavonoid content of EWH and the exposure levels in rats, using icaritin as the pharmacokinetic marker. This model accurately predicted exposure levels in vivo, with similar predicted vs. experimental area under the curve (AUC)(0-96 h) values for total icaritin (24.1 vs. 32.0 mg/L h). CONCLUSION Icaritin in hydrolyzed plasma can be used as a pharmacokinetic marker to reflect prenylflavonoid exposure levels, as well as the changes over time of its glucuronide conjugates.
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Affiliation(s)
- Caihong Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Caisheng Wu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Jinlan Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
| | - Ying Jin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
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Xu Y, Guan R, Lei H, Gao Z, Li H, Hui Y, Zhou F, Wang L, Lin G, Xin Z. Implications for Differentiation of Endogenous Stem Cells: Therapeutic Effect from Icariside II on a Rat Model of Postprostatectomy Erectile Dysfunction. Stem Cells Dev 2015; 24:747-55. [PMID: 25365340 DOI: 10.1089/scd.2014.0380] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Yongde Xu
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing, China
| | - Ruili Guan
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing, China
| | - Hongen Lei
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing, China
| | - Zhezhu Gao
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing, China
| | - Huixi Li
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, California
| | - Yu Hui
- Department of Urology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Feng Zhou
- Department of Urology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lin Wang
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, California
| | - Guiting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, California
| | - Zhongcheng Xin
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing, China
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Icaritin induces lytic cytotoxicity in extranodal NK/T-cell lymphoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:17. [PMID: 25887673 PMCID: PMC4336495 DOI: 10.1186/s13046-015-0133-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 02/04/2015] [Indexed: 11/22/2022]
Abstract
Background Extranodal NK/T-cell lymphoma (ENKL) is an aggressive hematological malignancy associated with Epstein–Barr virus (EBV) infection. It is often resistant to conventional chemotherapy and has a poor prognosis. Icaritin, a compound derived from Chinese herbal medicine, Herba Epimedii, has been reported to exert antitumor effects on a variety of cancer cell lines. In the present study, we investigated the cytotoxic effects of Icaritin on the two EBV-positive ENKL cell lines SNK-10 and SNT-8, along with the underlying molecular mechanisms. Methods ENKL cell lines SNK-10 and SNT-8 were exposed to different concentrations of Icaritin for the indicated time. Treated cells were analyzed for cell proliferation, cell cycle, and cell apoptosis. Phosphorylation of Stat3 and Akt proteins in signaling pathways and the EBV-encoded LMP1 proteins were measured by Western blot. Expression of EBV genes was assessed by Real-Time PCR. Results Our results showed that Icaritin dose-dependently inhibits ENKL cell proliferation and induces apoptosis and cell cycle arrest at G2/M phase. Additionally, Icaritin upregulates Bax, downregulates Bcl-2 and pBad, and activates caspase-3 and caspase-9. The anti-proliferative and pro-apoptotic effects of Icaritin are likely mediated by inhibition of Stat3 and Akt pathways through LMP1 downregulation. Importantly, Icaritin induces EBV lytic gene expression in ENKL cells, and the combination of Icaritin and the antiviral drug ganciclovir (GCV) is more effective in inducing ENKL cells apoptosis than Icaritin or GCV alone. Conclusions These findings indicate that EBV-targeted approaches may have significant therapeutic potential for ENKL treatment.
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Li C, Li Q, Mei Q, Lu T. Pharmacological effects and pharmacokinetic properties of icariin, the major bioactive component in Herba Epimedii. Life Sci 2015; 126:57-68. [PMID: 25634110 DOI: 10.1016/j.lfs.2015.01.006] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/22/2014] [Accepted: 01/10/2015] [Indexed: 12/22/2022]
Abstract
Herba Epimedii is an important medicinal plant which has been used in various traditional Chinese formulations for thousands of years as well as in modern proprietary traditional Chinese medicine products. It has extensive clinical indications, especially for the treatment of sexual dysfunction and osteoporosis. There have been more than 260 chemical moieties identified in the genus Epimedium most of which belong to flavonoids. Icariin is the most abundant constituent in Herba Epimedii. Icariin is pharmacologically bioactive and demonstrates extensive therapeutic capacities such as osteoprotective effect, neuroprotective effect, cardiovascular protective effect, anti-cancer effect, anti-inflammation effect, immunoprotective effect and reproductive function. Particularly, the significant osteogenic effect of icariin made it a promising drug candidate in bone tissue engineering. The current review paper aims to summarize the literatures reporting the pharmacological effects of icariin. The pharmacokinetic properties of bioactive ingredients in Herba Epimedii have also been discussed.
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Affiliation(s)
- Chenrui Li
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Qiang Li
- Department of Radiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Qibing Mei
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Tingli Lu
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
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Zhang SQ. Ultra-high performance liquid chromatography–tandem mass spectrometry for the quantification of icaritin in mouse bone. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 978-979:24-8. [DOI: 10.1016/j.jchromb.2014.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 11/27/2014] [Accepted: 12/03/2014] [Indexed: 12/20/2022]
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Wong KC, Lee KS, Luk HK, Wan HY, Ho CK, Zhang Y, Wong MS. Er-xian Decoction exerts estrogen-like osteoprotective effects in vivo and in vitro. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2014; 42:409-26. [PMID: 24707871 DOI: 10.1142/s0192415x1450027x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Er-xian Decoction (EXD), containing Herba epimedii Maxim (HEP) and Curculigo orchioides Gaertn (XM) as principal drugs, is a traditional Chinese medicine (TCM) formula prescribed for the treatment of postmenopausal osteoporosis. In the present study, the in vivo anti-osteoporosis effects of EXD, HEP and XM on four-month-old ovariectomized (OVX) Sprague-Dawley rats were investigated. Micro-computed tomography analysis showed that EXD could significantly improve the micro-architectural parameters (BMD, BV/TV, Tb.N, Tb.Th, and Tb.Sp) of trabecular bone in the distal femur and proximal tibia in OVX rats (p < 0.05). The biomechanical parameters of the distal femur in rats treated with EXD were also improved significantly (p < 0.05 vs. OVX group). The in vivo efficacy of EXD was found to be superior to HEP or XM alone in improving the bone properties of OVX rats. Treatment of rat osteoblastic-like UMR-106 cells with EXD, HEP, and XM significantly promoted the cell proliferation rate (p < 0.05) with the most promising effects observed in cells treated with EXD (p < 0.001). The proliferative effect in UMR-106 cells induced by EXD, HEP, and XM were abolished in the presence of the estrogen antagonist, ICI182780, suggesting that their effects were mediated by estrogen receptor (ER). Additionally, EXD could activate ER-α and ER-β mediated estrogen-response element (ERE)-dependent luciferase activity as well as phosphorylate ER-α at serine 118 in UMR-106 cells. Taken together, EXD offered better osteoprotective effects than its single principal herb, and the beneficial effects of EXD in preventing bone deteriorations are, at least partially, through the ER signaling pathway.
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Affiliation(s)
- Ka-Chun Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
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Prophylactic protective effects and its potential mechanisms of IcarisideII on streptozotocin induced spermatogenic dysfunction. Int J Mol Sci 2014; 15:16100-13. [PMID: 25216341 PMCID: PMC4200858 DOI: 10.3390/ijms150916100] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 08/30/2014] [Accepted: 09/03/2014] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to investigate the effects of IcarisideII(ICAII) on the prevention of streptozotocin (STZ) induced spermatogenic dysfunction. Forty male Sprague-Dawley rats received intraperitoneal injection of STZ (55 mg/kg) and were equally randomized to gavage feeding of vehicle (the vehicle group) or ICAII (0.5, 1.5 or 4.5 mg/kg/day, respectively). Ten normal rats received vehicle and served as control. Four weeks later, sperm parameters, histopathological changes, testicular lipid peroxidation, antioxidant enzyme activities, and apoptosis index (AI) were evaluated. Results showed that ICAII treatment resulted in a significant recovery of sperm parameters and histopathological changes relative to the vehicle group (p < 0.05). In the vehicle group, antioxidant enzyme activities and the expression of Sertoli cell Vimentin filaments obviously decreased, while lipid peroxidation and AI significantly increased as compared with the control group (p < 0.05). Following ICAII treatment, corrective effects on these items towards normal levels were observed. The results suggested that ICAII has beneficial effect on the preservation of spermatogenic function in the STZ-induced diabetic rats. The mechanisms might be related to its improvement of antioxidant enzyme activities, preservation of the protein expression and apical extensions of Vimentin filaments, and anti-apoptosis capability.
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Zhai YK, Guo XY, Ge BF, Zhen P, Ma XN, Zhou J, Ma HP, Xian CJ, Chen KM. Icariin stimulates the osteogenic differentiation of rat bone marrow stromal cells via activating the PI3K-AKT-eNOS-NO-cGMP-PKG. Bone 2014; 66:189-98. [PMID: 24956021 DOI: 10.1016/j.bone.2014.06.016] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 06/11/2014] [Accepted: 06/13/2014] [Indexed: 01/13/2023]
Abstract
Icariin, a prenylated flavonol glycoside isolated from Epimedii herba, has been found to be a potent stimulator of osteogenic differentiation and has potential application in preventing bone loss. However, the signaling pathway underlying its osteogenic effect remains unclear. We hypothesized that the osteogenic activity of icariin is related to the nitric oxide (NO) signal pathway and PI3K/AKT pathway in its upstream. Rat bone marrow stromal cells (rBMSCs) were cultured in osteogenic medium and treated with icariin or together with L-NAME, ODQ, PDE5, and/or LY294002 (the inhibitor of NOS, sGC, cGMP, and PI3K respectively), and effects were examined on the expression of signal messengers (NOS, NO, sGC, cGMP, PKG and PI3K) and the levels of osteogenic markers (alkaline phosphatase or ALP, osteocalcin and calcified nodules). It was found that icariin dose-dependently increased ALP activity, and treatment at the optimal concentration (10(-5)M) increased NOS activity, iNOS and eNOS expression, NO production, sGC and cGMP contents and PKG expression besides the phosphorylation of AKT. The addition of L-NAME, ODQ and PDE5 significantly inhibited the icariin effects on above markers respectively. The addition of LY294002 decreased the p-AKT level, NOS activity, eNOS expression and NO production significantly, but had no significant effect on iNOS expression. The addition of any of the four inhibitors also abolished the osteogenic effect of icariin on rBMSCs as indicated by ALP activity, osteocalcin synthesis, calcium deposition and the number and areas of calcified nodules. These results suggest that the osteogenic effect of icariin involves the PI3K-AKT-eNOS-NO-cGMP-PKG signal pathway. Furthermore, dosage response studies showed that icariin at 10(-6)M (a physiologically achievable concentration in vivo) also activated this signal pathway.
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Affiliation(s)
- Yuan-Kun Zhai
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Xiao-Yu Guo
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Bao-Feng Ge
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Ping Zhen
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Xiao-Ni Ma
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Jian Zhou
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Hui-Ping Ma
- Department of Pharmacy, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
| | - Cory J Xian
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5001, Australia.
| | - Ke-Ming Chen
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou 730050, People's Republic of China.
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Jiang J, Feng L, Sun E, Li H, Cui L, Jia X. Metabolic profiling of isomeric aglycones central-icaritin (c-IT) and icaritin (IT) in osteoporotic rats by UPLC-QTOF-MS. Drug Test Anal 2014; 7:309-19. [PMID: 24934976 DOI: 10.1002/dta.1672] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 04/16/2014] [Accepted: 04/16/2014] [Indexed: 01/23/2023]
Abstract
The isomers, although of similarly chemical structures, have different pharmacological activities due to their metabolic processes in vivo. Central-icaritin (c-IT) and icaritin (IT) are isomers and major bioactive aglycones of the Herba Epimedii. In this study, we found that the anti-osteoporotic effect of c-IT was stronger than IT on bone structural changes in osteoporotic rats evaluated by Micro-μCT with the parameters of bone mineral density (BMD), bone mineral content (BMC), tissue mineral content (TMC), and tissue mineral density (TMD). c-IT treatment significantly increased the bone microarchitecture, compared with IT (p < 0.05). In order to explain their differences in anti-osteoporosis, the metabolic profiling and pathways of c-IT and IT in the plasma, bile, urine, and faeces of ovariectomized (OVX) rats were investigated by ultra-performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-QTOF-MS) after oral administration of c-IT or IT (80 mg/kg). Finally, 59 metabolites of c-IT and 43 metabolites of IT were identified by elucidating their corresponding quasimolecular ions and fragment ions. IT could be quickly absorbed into blood and reached a maximum plasma concentration, and then be rapidly conversed to its glucuronidation metabolites, most of which were excreted out by urine. Interestingly, the absorbed and conjugated speeds of c-IT were slower than IT. The metabolic processes of c-IT existed enterohepatic circulation, which decreased the metabolism and excretion rate of c-IT, and prolonged the anti-osteoporosis effect. Our findings provided evidence on the difference on metabolic profiles of c-IT and IT in osteoporotic rats, which might shed new lights on improving anti-osteoporotic effects of IT and c-IT.
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Affiliation(s)
- Jun Jiang
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu Province, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, 100# Shizi Road, Nanjing, 210028, Jiangsu Province, China
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Gao F, Hu Y, Fang G, Yang G, Xu Z, Dou L, Chen Z, Fan G. Recent developments in the field of the determination of constituents of TCMs in body fluids of animals and human. J Pharm Biomed Anal 2013; 87:241-60. [PMID: 23642848 DOI: 10.1016/j.jpba.2013.04.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/03/2013] [Accepted: 04/08/2013] [Indexed: 12/11/2022]
Abstract
Although traditional Chinese medicines (TCMs) play important role in drug discovery and human health, the actual value of TCMs has not been fully recognized worldwide due to its complex components and uncontrollable quality. For the modernization and globalization of TCMs, it is important to establish selective, sensitive and feasible analytical methods for determination and quantification of bioactive components of TCMs in body fluids primarily due to the low concentration, the complex nature of the biological matrices, and multi-components and their metabolites present in biological fluids. The present review summarizes the current extraction techniques, chromatographic separation and spectroscopic (especially mass spectrometric) analysis methods and new trends on the analysis of bioactive components and metabolites of TCMs in biological fluids. In addition, the importance of establishment of pharmacokinetics and bioavailability profiles and simultaneous determination of multi-active components in TCMs is discussed to provide proper examples of analytical methods for pharmacological and clinical studies of TCMs.
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Affiliation(s)
- Fangyuan Gao
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, No. 325 Guohe Road, Shanghai 200433, China.
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Ming LG, Chen KM, Xian CJ. Functions and action mechanisms of flavonoids genistein and icariin in regulating bone remodeling. J Cell Physiol 2013; 228:513-21. [PMID: 22777826 DOI: 10.1002/jcp.24158] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 07/02/2012] [Indexed: 12/12/2022]
Abstract
Increasingly natural products particularly flavonoids are being explored for their therapeutic potentials in reducing bone loss and maintaining bone health. This study has reviewed previous studies on the two better known flavonoids, genistein and icariin, their structures, functions, action mechanisms, relative potency, and potential application in regulating bone remodeling and preventing bone loss. Genistein, an isoflavone abundant in soy, has dual functions on bone cells, able to inhibit bone resorption activity of osteoclasts and stimulate osteogenic differentiation and maturation of bone marrow stromal progenitor cells (BMSCs) and osteoblasts. Genistein is an estrogen receptor (ER)-selective binding phytoestrogen, with a greater affinity to ERβ. Genistein inhibits tyrosine kinases and inhibits DNA topoisomerases I and II, and may act as an antioxidant. Genistein enhances osteoblastic differentiation and maturation by activation of ER, p38MAPK-Runx2, and NO/cGMP pathways, and it inhibits osteoclast formation and bone resorption through inducing osteoclastogenic inhibitor osteoprotegerin (OPG) and blocking NF-κB signaling. Icariin, a prenylated flavonol glycoside isolated from Epimedium herb, stimulates osteogenic differentiation of BMSCs and inhibits bone resorption activity of osteoclasts. Icariin, whose metabolites include icariside I, icariside II, icaritin, and desmethylicaritin, has no estrogenic activity. However, icariin is more potent than genistein in promoting osteogenic differentiation and maturation of osteoblasts. The existence of a prenyl group on C-8 of icariin molecular structure has been suggested to be the reason why icariin is more potent than genistein in osteogenic activity. Thus, the prenylflavonoids may represent a class of flavonoids with a higher osteogenic activity.
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Affiliation(s)
- Lei-Guo Ming
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of PLA, Lanzhou, People's Republic of China
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Deng WM, Zhang P, Huang H, Shen YG, Yang QH, Cui WL, He YS, Wei S, Ye Z, Liu F, Qin L. Five-year follow-up study of a kidney-tonifying herbal Fufang for prevention of postmenopausal osteoporosis and fragility fractures. J Bone Miner Metab 2012; 30:517-24. [PMID: 22722637 DOI: 10.1007/s00774-012-0351-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Accepted: 02/07/2012] [Indexed: 01/07/2023]
Abstract
To observe the kidney-tonifying herbal Fufangs with phytoestrogenic epimedium for prevention of postmenopausal osteoporosis with both bone mineral density (BMD) and fracture as study endpoints, a 5-year multicenter follow-up study in 194 postmenopausal women (47-70 years old) was conducted in which the subjects were given oral administration of herbal Fufang (10 g/day, twice per day, n = 101) or placebo (n = 93). Both groups were supplemented daily with calcium (600 mg) and vitamin D (400 IU). BMD at distal radius, potential adverse events, and fracture incidence were evaluated at baseline and at 6, 12, 24, 36, 48, and 60 months. At the end of 5 years, 155 subjects had completed the study, with better adherence in the treatment group (13% dropouts, n = 88 at year 5) as compared with the control group (28% dropouts, n = 67 at year 5) (P < 0.05). No notable adverse events were observed in either group. In the treatment group BMD increased significantly from baseline (0.211 ± 0.022 g/cm(2)) to the end of the study (0.284 ± 0.015 g/cm(2)), whereas the control group decreased significantly from baseline (0.212 ± 0.023 g/cm(2)) to 5 years later (0.187 ± 0.022 g/cm(2)) (P < 0.05). The fracture incidence was 2.4 fold lower in the treatment group than in the control group, with a relative risk of 0.57 for the treatment group (95% CI, 0.43-0.70, P < 0.05). In conclusion, in addition to the beneficial effects of oral herbal Fufang on prevention of postmenopausal bone loss, this 5-year multi-center clinical study demonstrated for the first time its potential for reduction in fragility fracture incidence.
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Affiliation(s)
- Wei-Min Deng
- Department of Rehabilitation, General Hospital of Guangzhou Military Command of PLA, Guangzhou, China.
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Chang Q, Wang GN, Li Y, Zhang L, You C, Zheng Y. Oral absorption and excretion of icaritin, an aglycone and also active metabolite of prenylflavonoids from the Chinese medicine Herba Epimedii in rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:1024-8. [PMID: 22762938 DOI: 10.1016/j.phymed.2012.05.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/13/2012] [Accepted: 05/26/2012] [Indexed: 05/17/2023]
Abstract
Icaritin (ICT) is a main aglycone and also active intestinal metabolite of prenylflavonoids from the Chinese medicine Herba Epimedii. In the present study, the oral absorption and excretion of this compound was investigated using rats for exploring its fate in the body, so as to better understanding its in vivo pharmacological activities. The free (parent) and total (parent plus conjugated metabolites) ICT concentrations in rat plasma, urine and bile, after intravenous (i.v.) and oral administration both at 5mg/kg, were determined before and after enzymatic hydrolysis with β-glucuronidase/sulphatase, respectively, by a HPLC-UV method. The results showed that free ICT plasma concentration after i.v. dose was rapidly decreased with average t(1/2, λ) of 0.43 h, while the total ICT concentration was decreased slowly with t(1/2, λ) of 6.86 h. The area under the curve of ICT conjugated metabolites was about 11-fold higher than that of free ICT. The majority of ICT in the body was excreted from the bile with 68.05% of dose over 8 h after i.v. dosing, in which only 0.15% was in parent form. While very little amount of ICT was excreted from the urine with 3.01% of dose over 24 h, in which the parent form was 0.62%. After oral administration, very little amount of parent ICT was detected only in 0.5, 1 or 2 h plasma samples with the concentration less than LOQ, however, its total plasma concentration after enzymatic hydrolysis treatment was at relative high level with average maximum concentration of 0.49 μg/ml achieved at 1h post dose. The oral bioavailability of ICT was 35% of dose, estimated by its total plasma drug concentrations. It is concluded that ICT can be easily absorbed into the body, and then rapidly conversed to its conjugated metabolites, and finally removed from the body mainly by biliary excretion.
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Affiliation(s)
- Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
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Kang HK, Choi YH, Kwon H, Lee SB, Kim DH, Sung CK, Park YI, Dong MS. Estrogenic/antiestrogenic activities of a Epimedium koreanum extract and its major components: in vitro and in vivo studies. Food Chem Toxicol 2012; 50:2751-9. [DOI: 10.1016/j.fct.2012.05.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Revised: 04/19/2012] [Accepted: 05/01/2012] [Indexed: 01/26/2023]
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Tiong CT, Chen C, Zhang SJ, Li J, Soshilov A, Denison MS, Lee LSU, Tam VH, Wong SP, Xu H, Yong EL. A novel prenylflavone restricts breast cancer cell growth through AhR-mediated destabilization of ERα protein. Carcinogenesis 2012; 33:1089-97. [PMID: 22345291 PMCID: PMC3334513 DOI: 10.1093/carcin/bgs110] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 02/08/2012] [Accepted: 02/12/2012] [Indexed: 12/17/2022] Open
Abstract
There is concern that ingestion of dietary phytoestrogens may increase risk of estrogen receptor alpha (ERα)-positive breast cancer. The prenylflavone icaritin, a phytoestrogen consumed in East Asian societies for its perceived beneficial effects on bone health, stimulated the growth of breast cancer (MCF-7) cells at low concentrations. Although acting like an estrogenic ligand, icaritin exerted an unexpected suppressive effect on estrogen-stimulated breast cancer cell proliferation and gene expression at higher concentrations. Like estradiol, icaritin could dose-dependently destabilize ERα protein. However, destabilization of ERα by the estradiol/icaritin combination was profound and greater than that observed for either compound alone. Microarray gene expression analyses implicated aryl hydrocarbon receptor (AhR) signaling for this suppressive effect of icaritin. Indeed, icaritin was an AhR agonist that competitively reduced specific binding of a potent AhR agonist and increased expression of the AhR-regulated gene CYP1A1. When AhR was knocked down by small interfering RNA, the suppressive effect of icaritin on estradiol-stimulated breast cancer cell growth and gene expression was abolished, and ERα protein stability was partially restored. Similarly in an athymic nude mouse model, icaritin restricted estradiol-stimulated breast cancer xenograft growth and strongly reduced ERα protein levels. Overall, our data support the feasibility for the development of dual agonists like icaritin, which are estrogenic but yet, through activating AhR-signaling, can destabilize ERα protein to restrict ERα-positive breast cancer cell growth.
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Affiliation(s)
- Chi Tze Tiong
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
| | - Chen Chen
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
| | - Shi Jun Zhang
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
| | - Jun Li
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
| | - Anatoly Soshilov
- Department of Environmental Toxicology, University of California, Davis, CA, USA
| | - Michael S. Denison
- Department of Environmental Toxicology, University of California, Davis, CA, USA
| | | | - Vincent H. Tam
- Department of Medicine, Yong Loo Lin School of Medicine, Singapore
- Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX, USA
| | - Shih Peng Wong
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
| | - H.Eric Xu
- Laboratory of Structural Sciences, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Eu-Leong Yong
- Department of Obstetrics and Gynecology, National University Hospital, Yong Loo Lin School of Medicine, Lower Kent Ridge Road, 119074 Singapore
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Zhu HM, Qin L, Garnero P, Genant HK, Zhang G, Dai K, Yao X, Gu G, Hao Y, Li Z, Zhao Y, Li W, Yang J, Zhao X, Shi D, Fuerst T, Lu Y, Li H, Zhang X, Li C, Zhao J, Wu Q, Zhao SJ. The first multicenter and randomized clinical trial of herbal Fufang for treatment of postmenopausal osteoporosis. Osteoporos Int 2012; 23:1317-27. [PMID: 21505910 DOI: 10.1007/s00198-011-1577-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Accepted: 01/22/2011] [Indexed: 10/18/2022]
Abstract
UNLABELLED This multicenter and randomized clinical trial showed that daily oral herbal formula Xian Ling Gu Bao (XLGB) was safe in postmenopausal women over a 1-year treatment. Those patients (n ∼ 50) treated with XLGB at the conventional dose demonstrated a statistically significant increase in dual-energy X-ray absorptiometry (DXA) bone mineral density (BMD) at lumbar spine at 6 months and a numerically increased BMD at 12 months. INTRODUCTION The aim of this study was to examine the safety and efficacy of a herbal formula XLGB in postmenopausal women (ChiCTR-TRC-00000347). METHODS One hundred eighty healthy postmenopausal women (≥60 years old) with BMD T-score ≤ -2.0 (lumbar spine or femoral neck) were recruited from four clinical centers to receive low-dose (conventional dose) XLGB (L-XLGB group, 3 g/day, n = 61) or high-dose XLGB (H-XLGB group, 6 g/day, n = 58) or placebo (CON group, n = 61). Women received daily calcium (500 mg) and vitamin D (200 IU) supplementation. Primary endpoints were lumbar spine BMD and safety; secondary endpoints were femoral neck BMD and bone turnover markers measured at baseline and at 6 and 12 months. RESULTS Of 180 women recruited, 148 completed the study. The compliance in each group was comparable. Prominent adverse events were not observed in either group. In the L-XLGB group at 6 months, lumbar spine BMD by DXA increased significantly from baseline (+2.11% versus CON +0.58%, p < 0.05), but femoral neck BMD did not; at 12 months, BMD in the L-XLGB group decreased from 6-month levels yet remained higher than baseline, but without difference from the CON group. There was no dose-dependent response. Bone turnover marker levels declined during the first 6 months after XLGB treatment. There was no significant difference in the overall incidence of side effects among treatment and control groups. CONCLUSION XLGB over 1-year treatment at the conventional dose demonstrated safe and only a statistically significant increase in BMD at lumbar spine at 6 months in postmenopausal women.
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Affiliation(s)
- H M Zhu
- Centre of Osteoporosis, Shanghai Hua Dong Hospital, Fu Dan University, Shanghai, China.
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Metabolite profiling of four major flavonoids of Herba Epimedii in zebrafish. Molecules 2012; 17:420-32. [PMID: 22217555 PMCID: PMC6268998 DOI: 10.3390/molecules17010420] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 12/08/2011] [Accepted: 12/24/2011] [Indexed: 11/16/2022] Open
Abstract
The zebrafish model organism was applied first in a metabolic study of icariin, baohuoside I, epimedin A and epimedin C, which are flavonoids in Herba Epimedii. Metabolites of these compounds in zebrafish after exposure for 24 h were identified by HPLC-ESI-MS, whereby the separation was performed with a Zorbax C-18 column using a gradient elution of 0.05% formic acid acetonitrile-0.05% formic acid water. The quasi-molecular ions of compounds were detected in simultaneous negative and positive ionization modes. Metabolic products of icariin and epimedin C via cleavage of glucose residue instead of rhamnose residues were found, which coincided with the results using regular metabolic analysis methods. In addition, the zebrafish model was used to predict the metabolism of the trace component epimedin A, whose metabolic mechanisms haven't been clearly elucidated with the current metabolism model. The metabolic pathway of epimedin A in zebrafish was similar to those of its homologue icariin and epimedin C. Our study demonstrated that the zebrafish model can successfully imitate the current models in elucidating metabolic pathways of model flavonoids, which has advantages of lower cost, far less amount of compound needed, easy set up and high performance. This novel model can also be applied in quickly predicting the metabolism of Chinese herb components, especially trace compounds.
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Qi MY, Liu HR, Su YH, Yu SQ. Protective effect of Icariin on the early stage of experimental diabetic nephropathy induced by streptozotocin via modulating transforming growth factor β1 and type IV collagen expression in rats. JOURNAL OF ETHNOPHARMACOLOGY 2011; 138:731-736. [PMID: 22027446 DOI: 10.1016/j.jep.2011.10.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 10/09/2011] [Accepted: 10/10/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Icariin is a major constituent of flavonoid isolated from the plant Herba epimedii, which is used as a traditional Chinese medicine to nourish the kidney and reinforce yang. Therefore, the pharmacological studied of its diabetic nephropathy effect was undertaken to validate its traditional use. MATERIALS AND METHODS Diabetes was induced in male Sprague-Dawley rats by an injection of streptozotocin (40 mg/kg i.v.). Sustained blood glucose levels (>16.7 mmol/l) were considered as diabetic and selected for experimentation. Thirty rats were randomly divided into three groups: control, diabetic, diabetic+Icariin (80 mg/kg, i.g.) administered 8 weeks from 5th to 12th week. Experiment was carried out at the beginning of 13th week. All rats were anaesthetized and then were killed to remove kidneys. Blood glucose, serum creatinine (Cr), blood urea nitrogen (BUN), the activity of superoxide dismutase (SOD), malondialdehyde (MDA) and hydroxyproline (Hyp) in the kidney tissue were measured. Glomerular morphology was observed by light microscopy. Immunohistochemistry and Western blot were employed to determine the proteins levels of TGF-β(1) and type IV collagen. RESULTS The enhancement of Cr and BUN was found in model group, which was significantly attenuated by treatment with Icariin. Meanwhile, elevated MDA and Hyp levels in renal tissue as well as decreased SOD activities in renal tissue were significantly remitted by Icariin. The renal pathological changes in Icariin treatment group were ameliorated. Furthermore, the Icariin decreased the expression of TGF-β(1) and collagen IV protein. CONCLUSIONS Icariin can evidently relieve renal damage in rats with diabetic nephropathy induced by STZ, which might be related to modulating the expression of collagen IV and TGF-β(1) protein.
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Affiliation(s)
- Min-You Qi
- Department of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang, China.
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