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Thant MT, Bhummaphan N, Wuttiin J, Puttipanyalears C, Chaichompoo W, Rojsitthisak P, Punpreuk Y, Böttcher C, Likhitwitayawuid K, Sritularak B. New Phenolic Glycosides from Coelogyne fuscescens Lindl. var. brunnea and Their Cytotoxicity against Human Breast Cancer Cells. ACS OMEGA 2024; 9:7679-7691. [PMID: 38405545 PMCID: PMC10883021 DOI: 10.1021/acsomega.3c07048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/27/2024]
Abstract
The phytochemical investigation of the whole plants of Coelogyne fuscescens Lindl. var. brunnea led to the discovery of three new phenolic glycosides, i.e., coelofusides A-C (1-3) and 12 known compounds (4-15). For the first time, we reported the nuclear magnetic resonance (NMR) data of 4-O-(6'-O-glucosyl-4″-hydroxybenzoyl)-4-hydroxybenzyl alcohol (4) in this study. The identification of the structures of newly discovered compounds was done through the analysis of their spectroscopic data [NMR, mass spectrometry, ultraviolet, Fourier transform infrared, optical rotation, and circular dichroism (CD)]. In comparison to anticancer drugs (i.e., etoposide and carboplatin), we evaluated anticancer potential of the isolated compounds on two different breast cancer cell lines, namely, T47D and MDA-MB-231. Human fibroblast HaCaT cells were used as the control cells. After a 48 h incubation, flavidin (8), coelonin (10), 3,4-dihydroxybenzaldehyde (11), and oxoflavidin (12) showed significant cytotoxic effects against breast cancer cells. Among them, oxoflavidin (12) exhibited the most potent cytotoxicity on MDA-MB-231 with an IC50 value of 26.26 ± 4.33 μM. In the nuclear staining assay, oxoflavidin induced apoptosis after 48 h in both T47D and MDA-MB-231 cells in a dose-dependent manner. Furthermore, oxoflavidin upregulated the expression of apoptotic genes, such as p53, Bax, poly(ADP-ribose) polymerase, caspase-3, and caspase-9 genes while significantly decreasing antiapoptotic protein (Bcl-2) expression levels.
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Affiliation(s)
- May Thazin Thant
- Department
of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical
Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Narumol Bhummaphan
- College
of Public Health Sciences, Chulalongkorn
University, Bangkok 10330, Thailand
| | - Jittima Wuttiin
- Department
of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical
Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Waraluck Chaichompoo
- Department
of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Natural
Products for Ageing and Chronic Diseases Research Unit, Faculty of
Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pornchai Rojsitthisak
- Department
of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Natural
Products for Ageing and Chronic Diseases Research Unit, Faculty of
Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Yanyong Punpreuk
- Department
of Agriculture, Ministry of Agriculture
and Cooperatives, Bangkok 10900, Thailand
| | - Chotima Böttcher
- Experimental
and Clinical Research Center, a Cooperation Between the Max Delbrück
Center for Molecular Medicine in the Helmholtz Association, Charité—Universitätsmedizin Berlin, Berlin 13125, Germany
| | - Kittisak Likhitwitayawuid
- Department
of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical
Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Boonchoo Sritularak
- Department
of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical
Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Natural
Products for Ageing and Chronic Diseases Research Unit, Faculty of
Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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Huan DQ, Hop NQ, Son NT. Wikstroemia: A Review on its Phytochemistry and Pharmacology. Curr Pharm Biotechnol 2024; 25:563-598. [PMID: 37282648 DOI: 10.2174/1389201024666230606122116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/13/2023] [Accepted: 05/08/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Wikstroemia (the family Thymelaeaceae) consists of medicinal plants which established great value in traditional medicines for many years. For instance, W. indica is always recommended for treatments of syphilis, arthritis, whooping cough, and cancer. No systematic review of bioactive compounds from this genus has been recorded to date. OBJECTIVES The objective of the current study is to review phytochemical investigations and pharmacological effects of Wikstroemia plant extracts and isolates. METHODS By searching on the internet, the relevant data about Wikstroemia medicinal plants were retrieved from internationally renowned scientific databases, such as Web of Science, Google Scholar, Sci-Finder, Pubmed, and so on. RESULTS More than 290 structurally diverse metabolites were separated and identified from this genus. They include terpenoids, lignans, flavonoids, coumarins, mono-phenols, diarylpentanoids, fatty acids, phytosterols, anthraquinones, and others. Pharmacological records indicated that Wikstroemia plant crude extracts and their isolated compounds bring out various beneficial effects, such as anticancer, antiinflammatory, anti-aging, anti-viral, antimicrobacterial, antimalarial, neuroprotective, and hepatoprotective activities. CONCLUSION Wikstroemia has been regarded as a worthy genus with numerous phytochemicals and various pharmacological potentials. Modern pharmacological studies have successfully provided evidence for traditional uses. Nonetheless, their action mechanisms need to be further investigated. Although various secondary metabolites were identified from Wikstroemia plants, the current pharmacological research mainly concentrated on terpenoids, lignans, flavonoids, and coumarins.
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Affiliation(s)
- Duong Quang Huan
- Faculty of Chemistry, Hanoi Pedagogical University 2 (HPU2), Nguyen Van Linh, Xuanhoa, Phucyen, Vinhphuc, Vietnam
| | - Nguyen Quang Hop
- Faculty of Chemistry, Hanoi Pedagogical University 2 (HPU2), Nguyen Van Linh, Xuanhoa, Phucyen, Vinhphuc, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi 1000, Vietnam
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Meesakul P, Shea T, Fenstemacher R, Wong SX, Kuroki Y, Wada A, Cao S. Phytochemistry and Biological Studies of Endemic Hawaiian Plants. Int J Mol Sci 2023; 24:16323. [PMID: 38003513 PMCID: PMC10670932 DOI: 10.3390/ijms242216323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
The Hawaiian Islands are renowned for their exceptional biodiversity and are host to a plethora of endemic plant species, which have been utilized in traditional Hawaiian medicine. This scientific review provides an in-depth analysis of the phytochemistry and biological studies of selected endemic Hawaiian plants, highlighting their medicinal properties and therapeutic potential. A literature search was conducted, utilizing major academic databases such as SciFinder, Scopus, Web of Science, PubMed, Google Scholar, Science Direct, and the Scientific Information Database. The primary objective of this search was to identify relevant scholarly articles pertaining to the topic of the review, which focused on the phytochemistry and biological studies of endemic Hawaiian plants. Utilizing these databases, a comprehensive range of literature was obtained, facilitating a comprehensive examination of the subject matter. This review emphasizes the rich phytochemical diversity and biological activities found in Endemic Hawaiian plants, showcasing their potential as sources of novel therapeutic agents. Given the unique biodiversity of Hawaii and the cultural significance of these plants, continued scientific exploration, conservation, and sustainable utilization of these valuable resources is necessary to unlock the full potential of these plant species in drug discovery and natural product-based therapeutics.
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Affiliation(s)
- Pornphimon Meesakul
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 200 W. Kawili St., Hilo, HI 96720, USA
| | - Tyler Shea
- Chemistry Department, University of Hawai'i at Hilo, 200 W. Kawili St., Hilo, HI 96720, USA
| | - Roland Fenstemacher
- Chemistry Laboratory, Board of Water Supply, City and County of Honolulu, 630 South Beretania Street, Honolulu, HI 96843, USA
| | - Shi Xuan Wong
- Delightex Pte. Ltd., 230 Victoria Street, #15-01/08 Bugis Junction Towers, Singapore 188024, Singapore
| | - Yutaka Kuroki
- Delightex Pte. Ltd., 230 Victoria Street, #15-01/08 Bugis Junction Towers, Singapore 188024, Singapore
| | - Aya Wada
- Delightex Pte. Ltd., 230 Victoria Street, #15-01/08 Bugis Junction Towers, Singapore 188024, Singapore
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 200 W. Kawili St., Hilo, HI 96720, USA
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Keem MJ, Seo SW, Kim T, Jo BG, Kim SN, Yoon IS, Yang MH. A High-Performance Liquid Chromatography with Photodiode Array Detection Method for Simultaneous Determination of Three Compounds Isolated from Wikstroemia ganpi: Assessment of the Effects on Cytochrome P450-Mediated Metabolism In Vitro and In Vivo. Nutrients 2023; 15:4061. [PMID: 37764844 PMCID: PMC10534693 DOI: 10.3390/nu15184061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
In natural products, the content and quality of the marker components differ depending on the part, production area, collection period, and extraction method; therefore, a standardized analysis method is required to obtain consistent results. This study developed a simultaneous analysis method for three marker components (7-methoxylutolin-5-O-glucoseide, pilloin 5-O-β-d-glucopyranoside, rutarensin) isolated and purified from Wikstroemia ganpi (W. ganpi). Simultaneous analysis was performed using high-performance liquid chromatography with photodiode array detection (HPLC-PDA) method that was validated according to the International Council for Harmonisation (ICH) guidelines. The developed analytical method exhibited linearity (r2 > 0.999), detection limits (0.72-3.34 μg/mL), and quantification limits (2.19-10.22 μg/mL). The relative standard deviation (RSD) value of intra- and inter-day precisions was less than 1.68%, and analyte recoveries (93.42-117.55%; RSD < 1.86%) were validated according to the analytical procedures, and all parameters were within the allowable range. Quantitative analysis of the three marker components from W. ganpi MeOH extract (WGM) showed 7-methoxylutolin-5-O-glucoseide with the highest content (51.81 mg/g). The inhibitory effects of WGM on cytochrome P450 (CYP) substrate drugs were further investigated. The in vitro study revealed that WGM inhibited the CYP3A-mediated metabolism of buspirone and that 7-methoxylutolin-5-O-glucoseide and pilloin 5-O-β-d-glucopyranoside inhibited the metabolism of buspirone with IC50 values of 2.73 and 18.7 μM, respectively. However, a single oral dose of WGM did not have significant effects on the pharmacokinetics of buspirone in rats, suggesting that WGM cannot function as an inhibitor of CYP3A-mediated metabolism in vivo.
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Affiliation(s)
- Min-Ji Keem
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
| | - Seong-Wook Seo
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Taeyoung Kim
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Beom-Geun Jo
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
| | - In-Soo Yoon
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Min Hye Yang
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; (M.-J.K.); (B.-G.J.)
- Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (S.-W.S.); (T.K.)
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Soltani S, Koubaa I, Cojean S, Picot C, Marchand P, Allouche N. Phytochemical, antileishmanial, antifungal and cytotoxic profiles of Thymelaea tartonraira (L.) All. extracts. Nat Prod Res 2023:1-7. [PMID: 37647092 DOI: 10.1080/14786419.2023.2252153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/10/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Extracts from leaves and stems of Thymelaea tartonraira (L.) All. growing in Tunisia were characterised for the presence of flavonoids and phenolic acids by LC-ESI-MS analysis. Twelve flavonoids and ten phenolic acids were detected for the first time in the aerial parts of this plant species, the most abundant compounds being gallic acid, kaempferol, catechin, chlorogenic acid, naringenin and acacetin. The extracts were subjected to in vitro antileishmanial, antifungal and cytotoxic assays, showing promising antileishmanial activity for the E6 dichloromethane extract from the stems (IC50 values of 1.12 ± 0.50 and 5.41 ± 1.84 µg/mL on L. donovani axenic and intramacrophagic amastigotes, respectively) at the level of the reference drug miltefosine for axenic model. No antifungal activity was observed against Candida albicans (CAAL) and Aspergillus fumigatus (ASFU) strains, with the exception of the E6 dichloromethane extract (IC50 value of 25.28 ± 4.89 µg/mL on CAAL93 strain). Low toxicity was also highlighted against macrophages Raw 264.7 cells. These promising results point out Thymelaea tartonraira (L.) All. extracts as a valuable source of new natural products to combat leishmaniasis.
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Affiliation(s)
- Siwar Soltani
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Imed Koubaa
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Sandrine Cojean
- BioCIS Biomolécules: Conception, Isolement, Synthèse, Chimiothérapie Antiparasitaire, Université Paris-Saclay, Orsay, France
| | - Carine Picot
- Nantes Université, Cibles et médicaments des infections et de l'immunité, IICiMed, FranceNantes
| | - Pascal Marchand
- Nantes Université, Cibles et médicaments des infections et de l'immunité, IICiMed, FranceNantes
| | - Noureddine Allouche
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
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Naturally Occurring Bicoumarin Compound Daphnoretin Inhibits Growth and Induces Megakaryocytic Differentiation in Human Chronic Myeloid Leukemia Cells. Cells 2022; 11:cells11203252. [PMID: 36291120 PMCID: PMC9600978 DOI: 10.3390/cells11203252] [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: 08/24/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022] Open
Abstract
Daphnoretin extracted from the stem and roots of Wikstroemia indica (L.) C.A. Mey has been shown to possess antiviral and antitumor activities. Herein, we hypothesized that daphnoretin might induce megakaryocytic differentiation, thereby inhibiting the proliferation of cells and serving as a differentiation therapy agent for chronic myeloid leukemia (CML). Daphnoretin-treated K562 and HEL cells were examined for growth inhibition, cell morphology, and megakaryocyte-specific markers. Potential mechanisms of megakaryocytic differentiation of daphnoretin-treated K562 cells were evaluated. The results showed that daphnoretin inhibited the growth of K562 and HEL cells in a dose- and time-dependent manner. Flow cytometry analyses revealed that daphnoretin treatment slightly increased the proportion of sub-G1 and polyploid cells compared to that of dimethyl sulfoxide (DMSO)-treated control cells. Morphological examination showed that daphnoretin-treated K562 and HEL cells exhibited enlarged contours and multinucleation as megakaryocytic characteristics compared to DMSO-treated control cells. Daphnoretin treatment also dramatically enhanced the expression of megakaryocytic markers CD61 and CD41. Under optimal megakaryocytic differentiation conditions, daphnoretin increased the phosphorylation of STAT3 but not STAT5. In summary, daphnoretin inhibited cell growth and induced megakaryocytic differentiation in K562 and HEL cells. The efficacy of daphnoretin in vivo and in patients with CML may need further investigations for validation.
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Identification and quantification of tricin present in medicinal herbs, plant foods and by-products using UPLC-QTOF-MS. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01651-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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8
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A flavonoid monomer tricin in Gramineous plants: Metabolism, bio/chemosynthesis, biological properties, and toxicology. Food Chem 2020; 320:126617. [DOI: 10.1016/j.foodchem.2020.126617] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/11/2020] [Accepted: 03/14/2020] [Indexed: 12/27/2022]
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Suppression of DNCB-Induced Atopic Skin Lesions in Mice by Wikstroemia indica Extract. Nutrients 2020; 12:nu12010173. [PMID: 31936273 PMCID: PMC7019247 DOI: 10.3390/nu12010173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/30/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023] Open
Abstract
Wikstroemia indica (L.) C.A. Mey. is used in traditional Chinese medicine to treat inflammatory diseases such as arthritis and bronchitis. In this study, we aimed to investigate the effects of an ethanolic extract of W. indica on cutaneous inflammation in mice with 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD). Dermal administration of W. indica ethanolic extract to DNCB-sensitized hairless mice with dermatitis, for two weeks, reduced erythema, scaling, and edema. Skin hydration was improved and transepidermal water loss was reduced at a W. indica concentration of 1%. Furthermore, W. indica also significantly reduced serum IgE and IL-4 concentrations in our mouse model. These results suggest that W. indica has potential as a topical treatment for AD and as an adjunctive agent to control AD.
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10
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Kim SH, Yoo ES, Woo JS, Han SH, Lee JH, Jung SH, Kim HJ, Jung JY. Antitumor and apoptotic effects of quercetin on human melanoma cells involving JNK/P38 MAPK signaling activation. Eur J Pharmacol 2019; 860:172568. [DOI: 10.1016/j.ejphar.2019.172568] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/09/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
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11
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Chemical Constituents of the Whole Plant of Ajania tenuifolia. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02791-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pan GH, Song RJ, Li JH. Radical-mediated synthesis of γ-lactones by copper-catalyzed intermolecular carboesterification of alkenes with α-carbonyl alkyl bromides and H2O. Org Chem Front 2018. [DOI: 10.1039/c7qo00579b] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel copper-catalyzed intermolecular carboesterification strategy of alkenes with α-carbonyl alkyl bromides is described.
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Affiliation(s)
- Gao-Hui Pan
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- Key Laboratory of Applied Organic Chemistry
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Khan H, Rengasamy KRR, Pervaiz A, Nabavi SM, Atanasov AG, Kamal MA. Plant-derived mPGES-1 inhibitors or suppressors: A new emerging trend in the search for small molecules to combat inflammation. Eur J Med Chem 2017; 153:2-28. [PMID: 29329790 DOI: 10.1016/j.ejmech.2017.12.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 11/28/2017] [Accepted: 12/16/2017] [Indexed: 02/05/2023]
Abstract
Inflammation comprises the reaction of the body to injury, in which a series of changes of the terminal vascular bed, blood, and connective tissue tends to eliminate the injurious agent and to repair the damaged tissue. It is a complex process, which involves the release of diverse regulatory mediators. The current anti-inflammatory agents are challenged by multiple side effects and thus, new effective therapies are highly needed. The aim of this review is to summarize the described microsomal prostaglandin E synthase-1 (mPGES-1) inhibitors or transcriptional suppressors from medicinal plants, which could be an ideal approach in the management of inflammatory disorders, but need further clinical trials in order to be ultimately validated.
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Affiliation(s)
- Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Kannan R R Rengasamy
- REEF Environmental Consultancy, #2 Kamaraj Street, S.P. Nagar, Puducherry 605 001, India.
| | - Aini Pervaiz
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, 05-552 Jastrzebiec, Poland; Department of Pharmacognosy, University of Vienna, 1090 Vienna, Austria.
| | - Mohammad A Kamal
- King Fahd Medical Research Center, King Abdulaziz University, Saudi Arabia; Enzymoics, 7 Peterlee Place, Hebersham, NSW 2770, Australia; Novel Global Community Educational Foundation, Australia
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Chang H, Wang Y, Gao X, Song Z, Awale S, Han N, Liu Z, Yin J. Lignans from the root of Wikstroemia indica and their cytotoxic activity against PANC-1 human pancreatic cancer cells. Fitoterapia 2017. [DOI: 10.1016/j.fitote.2017.06.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Daphnoretin modulates differentiation and maturation of human dendritic cells through down-regulation of c-Jun N-terminal kinase. Int Immunopharmacol 2017; 51:25-30. [PMID: 28772243 DOI: 10.1016/j.intimp.2017.07.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/11/2017] [Accepted: 07/20/2017] [Indexed: 11/22/2022]
Abstract
Daphnoretin, an active constituent of Wikstroemia indica C.A. Meys, has been shown possessing anti-cancer activity. In this study, we examined the effect of daphnoretin on differentiation and maturation of human myeloid dendritic cells (DCs). After treatment with daphnoretin (0, 1.1, 3.3, 10 and 30μM) to initiate monocytes, the recovery rate of DCs was reduced in a dose-dependent manner. The mature DCs differentiated in the presence of daphnoretin had fewer and shorter dendrites. Daphnoretin modulated DCs differentiation and maturation in terms of lower expression of CD1a, CD40, CD83, DC-SIGN, and HLA-DR. Daphnoretin inhibited the allostimulatory activity of DCs on proliferation of naive CD4+CD45+RA+ T cell. On the mitogen-activated protein kinase, daphnoretin down-regulated the lipopolysaccharide-augmented expression of phosphorylated c-Jun N-terminal kinase (pJNK), but not p38 and extracellular signal-regulated kinase 1/2 (ERK1/2). Activation of JNK by anisomycin reversed the effect of daphnoretin on daphnoretin-inhibited pJNK expression and dendrite formation of DCs. In disease model related to maturation of DCs, daphnoretin suppressed the acute rejection of skin allografts in mice. Our results suggest that daphnoretin modulated differentiation and maturation of DCs toward a state of atypical maturation with impaired allostimulatory function and this effect may go through down-regulation of phosphorylated JNK.
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Liu Q, Li B, Zhao J, Khan SI, Liu WB, Zeng T, Peng CY, Cai X, Peng Q, Huang H, Khan IA, Wang W. A new sucrosephenylpropanoid ester from Polygonum pubescens Blume. Nat Prod Res 2017; 31:1725-1732. [PMID: 28278632 DOI: 10.1080/14786419.2017.1289208] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The present study investigated the chemical constituents of aerial part of Polygonum pubescens Blume. Twenty-two compounds 1-22 were obtained from petroleum ether and ethyl acetate extracts of aerial part of P. pubescens, including a new phenylpropanoide esters 1 and 21 known compounds. The structures were determined on the basis of spectroscopic and chemical methods. Sixteen compounds were assessed for their cytotoxic and anti-inflammatory activities. Several compounds showed effects on different targets.
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Affiliation(s)
- Qiang Liu
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
| | - Bin Li
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
| | - Jianping Zhao
- b National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi , Oxford , MS , USA
| | - Shabana I Khan
- b National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi , Oxford , MS , USA
| | - Wen-Bin Liu
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
| | - Ting Zeng
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
| | - Cai-Yun Peng
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
| | - Xiong Cai
- c Hunan Provincial Key Laboratory of Diagnostics and Therapeutic Research in Chinese Medicine , Hunan University of Chinese Medicine , Changsha , China
| | - Qinghua Peng
- c Hunan Provincial Key Laboratory of Diagnostics and Therapeutic Research in Chinese Medicine , Hunan University of Chinese Medicine , Changsha , China
| | - Huiyong Huang
- c Hunan Provincial Key Laboratory of Diagnostics and Therapeutic Research in Chinese Medicine , Hunan University of Chinese Medicine , Changsha , China
| | - Ikhlas A Khan
- b National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi , Oxford , MS , USA
| | - Wei Wang
- a TCM and Ethnomedicine Innovation & Development Laboratory , Sino-Luxemburg TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine , Changsha , China
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Noman L, Oke-Altuntas F, Zellagui A, Sahin Yaglioglu A, Demirtas I, M Cardoso S, Akkal S, Gherraf N, Rhouati S. A novel benzimidazole and other constituents with antiproliferative and antioxidant properties from Thymelaea microphylla Coss. et Dur. Nat Prod Res 2017; 31:2032-2041. [DOI: 10.1080/14786419.2016.1274888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Labib Noman
- Laboratory of Natural Products and Organic Synthesis, Department of Chemistry, Faculty of Science, University of Mentouri–Constantine, Constantine, Algeria
- Laboratory of Plant Research, Department of Chemistry, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey
| | - Feyza Oke-Altuntas
- Department of Biology, Faculty of Science, Gazi University, Ankara, Turkey
| | - Amar Zellagui
- Laboratory of Natural Products and Organic Synthesis, Department of Chemistry, Faculty of Science, University of Mentouri–Constantine, Constantine, Algeria
- Laboratory of Biomolecules and Plant Breeding, Life Science and Nature Department, Faculty of Exact Science and Life Science and Nature, University of Larbi Ben Mhidi Oum El Bouaghi, Oum El Bouaghi, Algeria
| | - Ayse Sahin Yaglioglu
- Laboratory of Plant Research, Department of Chemistry, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey
| | - Ibrahim Demirtas
- Laboratory of Plant Research, Department of Chemistry, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey
| | - Susana M Cardoso
- Department of Chemistry & QOPNA, University of Aveiro, Aveiro, Portugal
| | - Salah Akkal
- Departement de Chimie, Facultés des Sciences exactes, Université de Constantine, Unité de Recherche Valorisation des ressources naturelles Molécules bioactives et Analyses Physico-Chimiques et Biologiques, Constantine, Algéria
| | - Noureddine Gherraf
- Laboratory of Natural Products and Organic Synthesis, Department of Chemistry, Faculty of Science, University of Mentouri–Constantine, Constantine, Algeria
- Laboratory of Biomolecules and Plant Breeding, Life Science and Nature Department, Faculty of Exact Science and Life Science and Nature, University of Larbi Ben Mhidi Oum El Bouaghi, Oum El Bouaghi, Algeria
| | - Salah Rhouati
- Laboratory of Natural Products and Organic Synthesis, Department of Chemistry, Faculty of Science, University of Mentouri–Constantine, Constantine, Algeria
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Wei M, Mahady GB, Liu D, Zheng ZS, Lu Y. Astragalin, a Flavonoid from Morus alba (Mulberry) Increases Endogenous Estrogen and Progesterone by Inhibiting Ovarian Granulosa Cell Apoptosis in an Aged Rat Model of Menopause. Molecules 2016; 21:E675. [PMID: 27213327 PMCID: PMC6273233 DOI: 10.3390/molecules21050675] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 05/05/2016] [Accepted: 05/10/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND To determine the mechanism by which the flavonoid glycoside astragalin (AST) reduces ovarian failure in an aged rat model of menopause. METHODS The in vivo effect of AST on granulosa cell (GC) apoptosis in aged female rats was determined using flow cytometry. In vitro, the effects of AST on cultured GCs were investigated using the MTT proliferation assay and western blot assays. RESULTS Aged rats had significantly higher GC apoptosis as compared with young female rats. Treatment of aged rats with AST (all three doses; p < 0.01) or Progynova (p < 0.01) significantly reduced GC apoptosis as compared with the aged controls. The proportions of total apoptotic GCs was 25.70%, 86.65%, 47.04%, 27.02%, 42.09% and 56.42% in the normal, aged, 17β-estradiol (E₂), high dose AST, medium dose AST, and low dose AST-treated groups, respectively. Significant increases of serum E₂ and P₄ levels, as well as altered levels of serum follicle stimulating hormone (FSH) and luteinizing hormone (LH) levels. In cultured rat GCs, AST stimulated GC proliferation, E₂ and progesterone (P₄) secretion, reduced apoptosis, reduced the level of the pro-apoptotic protein Bcl-2 (p < 0.01), but had no effect on BAX. CONCLUSIONS AST enhanced ovarian function in aged female rats by increasing E₂ and P₄ levels, and reducing ovarian GC apoptosis via a mechanism involving Bcl-2. These data demonstrate a new pharmacological activity for AST, as well as a novel mechanism of action, and further suggest that AST may be a new therapeutic agent for the management of menopausal symptoms.
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Affiliation(s)
- Min Wei
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210041, China.
| | - Gail B Mahady
- Department of Pharmacy Practice, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Daniel Liu
- Beijing Clinical Services Center, No. 103 Chaoyang North Road, Beijing 100123, China.
| | - Zhi S Zheng
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210041, China.
| | - Ye Lu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210041, China.
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Ghanem H, Haba H, Marcourt L, Benkhaled M, Wolfender JL. Microphynolides A and B, new spiro-γ-lactone glycosides from Thymelaea microphylla. Nat Prod Res 2014; 28:1732-8. [DOI: 10.1080/14786419.2014.942662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Hasna Ghanem
- Laboratoire de Chimie et Chimie de l'Environnement (L.C.C.E), Département de Chimie, Faculté des Sciences, Université de Batna, Batna, Algérie
| | - Hamada Haba
- Laboratoire de Chimie et Chimie de l'Environnement (L.C.C.E), Département de Chimie, Faculté des Sciences, Université de Batna, Batna, Algérie
| | - Laurence Marcourt
- Phytochemistry and Bioactive Natural Products, School of Pharmaceutical Science, EPGL, University of Geneva, Geneva, Switzerland
| | - Mohammed Benkhaled
- Laboratoire de Chimie et Chimie de l'Environnement (L.C.C.E), Département de Chimie, Faculté des Sciences, Université de Batna, Batna, Algérie
| | - Jean-Luc Wolfender
- Phytochemistry and Bioactive Natural Products, School of Pharmaceutical Science, EPGL, University of Geneva, Geneva, Switzerland
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21
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Jiang HF, Wu Z, Bai X, Zhang Y, He P. Effect of daphnoretin on the proliferation and apoptosis of A549 lung cancer cells in vitro.. Oncol Lett 2014; 8:1139-1142. [PMID: 25120673 PMCID: PMC4114638 DOI: 10.3892/ol.2014.2296] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 05/23/2014] [Indexed: 12/27/2022] Open
Abstract
Daphnoretin is an active constituent of Wikstroemia indica C.A. Mey., which is widely distributed in the northwest and southwest regions of China. Previous studies have shown that daphnoretin has anticancer effects on leukemia, osteosarcoma and uterine cervix cancer cells. However, the effect of daphnoretin on human lung cancer cells has yet to be elucidated. In the present study, daphnoretin was observed to inhibit A549 lung cancer cell proliferation in a concentration- and time-dependent manner. Fluorescent microscopy and flow cytometric analysis showed that daphnoretin induced A549 cell apoptosis in a concentration-dependent manner. Western blot analysis also revealed that daphnoretin induced apoptosis through the regulation of the B-cell lymphoma-2 gene family in A549 cells. These findings indicate that daphnoretin may have potential as a therapeutic agent for the management of lung cancer.
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Affiliation(s)
- Hong-Fang Jiang
- Department of Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Zhuo Wu
- Department of Thoracic Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xue Bai
- Department of Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yi Zhang
- Department of Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Ping He
- Department of Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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22
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Kabbaj FZ, Lai D, Meddah B, Altenbach HJ, Cherrah Y, Proksch P, Faouzi MEA, Debbab A. Chemical constituents from aerial parts of Thymelaea lythroides. BIOCHEM SYST ECOL 2013. [DOI: 10.1016/j.bse.2013.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Peuhu E, Paul P, Remes M, Holmbom T, Eklund P, Sjöholm R, Eriksson JE. The antitumor lignan Nortrachelogenin sensitizes prostate cancer cells to TRAIL-induced cell death by inhibition of the Akt pathway and growth factor signaling. Biochem Pharmacol 2013; 86:571-83. [PMID: 23747345 DOI: 10.1016/j.bcp.2013.05.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 05/15/2013] [Accepted: 05/16/2013] [Indexed: 02/05/2023]
Abstract
Prostate cancer cells frequently develop resistance toward androgen-deprivation and chemotherapy. To identify new approaches to treat androgen-dependent prostate cancer, we have performed a structure-activity analysis of lignan polyphenols for cancer cell specific sensitization to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), a death ligand that has ability to induce tumor-specific cell death. In this study, we report that the lignan nortrachelogenin (NTG) is the most efficient of the 27 tested lignan compounds in sensitizing prostate cancer cells to TRAIL-induced apoptosis. Importantly, pretreatment with NTG does not sensitize a non-malignant prostate cell line to TRAIL-induced cell death. The structural comparison of lignans reveals that the dibenzylbutyrolactone skeleton is required for the apoptosis-sensitizing activity, while substitutions at the aromatic rings do not seem to play a critical role in this lignan function. Our study also characterizes the cellular effects and molecular mechanisms involved in NTG anticancer activity. We previously reported that specific lignans inhibit the Akt survival-signaling pathway in concert with TRAIL sensitization. While NTG is also shown to be a effective inhibitor of Akt signaling, in this study we further demonstrate that NTG potently inhibits tyrosine kinase (RTK) activation in response to growth factors, such as insulin and insulin-like growth factor I (IGF-I). Our results identify NTG as a novel agent for prostate cancer therapy with ability to inhibit Akt membrane localization and activity as well as the activation of growth factor receptors (GFRs), thereby efficiently synergizing with TRAIL exposure.
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Affiliation(s)
- Emilia Peuhu
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Biocity, POB 123, FI-20521 Turku, Finland
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Shahidi F, Chandrasekara A. Millet grain phenolics and their role in disease risk reduction and health promotion: A review. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.02.004] [Citation(s) in RCA: 174] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Oleodaphnoic acid and coriaceol, two new natural products from the stem bark of Wikstroemia coriacea. Molecules 2013; 18:2988-96. [PMID: 23462531 PMCID: PMC6270482 DOI: 10.3390/molecules18032988] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 02/25/2013] [Accepted: 02/28/2013] [Indexed: 11/17/2022] Open
Abstract
Fractionation of the chloroform extract of Wikstroemia coriacea led to the isolation of two new compounds, oleodaphnoic acid (1), a guaiane-type sesquiterpenoid, and coriaceol (2), an 1,5-diphenyl-1-pentanone analogue, together with nine known compounds. The structures of 1 and 2 were elucidated by extensive spectroscopic data analysis. The known compounds were oleodaphnal (3), indicanone (4), (5R,8R,8aR)-3,8-dimethyl-4,5,6,7,8,8a-hexahydro-5-(1-methylethenyl)-2(1H)-azulenone, (5), 1,5 diphenyl-1-pentanone (6), (+)-3-hydroxy-1,5-diphenyl-1-pentanone (7), umbelliferone (8), daphnoretin (9), β-sitostenone (10) and (−)-hinokinin (11).
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Higa JK, Liang Z, Williams PG, Panee J. Phyllostachys edulis compounds inhibit palmitic acid-induced monocyte chemoattractant protein 1 (MCP-1) production. PLoS One 2012; 7:e45082. [PMID: 23028772 PMCID: PMC3445604 DOI: 10.1371/journal.pone.0045082] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 08/17/2012] [Indexed: 11/29/2022] Open
Abstract
Background Phyllostachys edulis Carriere (Poaceae) is a bamboo species that is part of the traditional Chinese medicine pharmacopoeia. Compounds and extracts from this species have shown potential applications towards several diseases. One of many complications found in obesity and diabetes is the link between elevated circulatory free fatty acids (FFAs) and chronic inflammation. This study aims to present a possible application of P. edulis extract in relieving inflammation caused by FFAs. Monocyte chemoattractant protein 1 (MCP-1/CCL2) is a pro-inflammatory cytokine implicated in chronic inflammation. Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and activator protein 1 (AP-1) are transcription factors activated in response to inflammatory stimuli, and upregulate pro-inflammatory cytokines such as MCP-1. This study examines the effect of P. edulis extract on cellular production of MCP-1 and on the NF-κB and AP-1 pathways in response to treatment with palmitic acid (PA), a FFA. Methodology/Principal Findings MCP-1 protein was measured by cytometric bead assay. NF-κB and AP-1 nuclear localization was detected by colorimetric DNA-binding ELISA. Relative MCP-1 mRNA was measured by real-time quantitative PCR. Murine cells were treated with PA to induce inflammation. PA increased expression of MCP-1 mRNA and protein, and increased nuclear localization of NF-κB and AP-1. Adding bamboo extract (BEX) inhibited the effects of PA, reduced MCP-1 production, and inhibited nuclear translocation of NF-κB and AP-1 subunits. Compounds isolated from BEX inhibited MCP-1 secretion with different potencies. Conclusions/Significance PA induced MCP-1 production in murine adipose, muscle, and liver cells. BEX ameliorated PA-induced production of MCP-1 by inhibiting nuclear translocation of NF-κB and AP-1. Two O-methylated flavones were isolated from BEX with functional effects on MCP-1 production. These results may represent a possible therapeutic application of BEX and its compounds toward alleviating chronic inflammation caused by elevated circulatory FFAs.
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Affiliation(s)
- Jason K. Higa
- Department of Cell and Molecular Biology, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii, United States of America
| | - Zhibin Liang
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America
| | - Philip G. Williams
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America
| | - Jun Panee
- Department of Cell and Molecular Biology, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii, United States of America
- * E-mail:
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Sikokianin D, a new C-3/C-3"-biflavanone from the roots of Wikstroemia indica. Molecules 2012; 17:7792-7. [PMID: 22735781 PMCID: PMC6268632 DOI: 10.3390/molecules17077792] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 06/15/2012] [Accepted: 06/19/2012] [Indexed: 12/01/2022] Open
Abstract
A new 3,3′′-biflavanone, sikokianin D (1), was isolated from the roots of Wikstroemia indica, together with two known compounds. Their structures were elucidated by chemical evidence and spectral analyses, including HR-ESI-MS, and 1D- and 2D-NMR techniques.
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Lu CL, Zhu L, Piao JH, Jiang JG. Chemical compositions extracted from Wikstroemia indica and their multiple activities. PHARMACEUTICAL BIOLOGY 2012; 50:225-231. [PMID: 22235889 DOI: 10.3109/13880209.2011.596207] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT The rhizome of Wikstroemia indica (L.) C. A. Mey (Thymelaeaceae) is widespread in China which has been widely used in China as folk medicine for the treatment of syphilis, arthritis, whooping cough, and cancer. Due to its multiactivities, its extract has an attractive potential as a promising natural agent in the pharmaceutical industries. OBJECTIVE Aims of this study were to optimize the extraction process of the flavonoids from W. indica, and evaluate its multiple activities. MATERIALS AND METHODS An orthogonal test design was employed to optimize the extraction procedure of flavonoids from W. indica. And multichromatography and spectroscopy were used to study the chemical compounds of W. indica, while several bioactivity assays were used to evaluate the antibacterial, anti-inflammatory, and antitumor activities of W. indica. RESULTS Optimal extraction conditions were determined: ethanol concentration was 60%; extraction time was 60 min; liquid-solid ratio was 16:1 and the power of ultrasonic instrument was 160 W. Four compounds: daphnoretin, chrysophanol, myricitrime and rutin were purified from W. indica, and chrysophanol was identified from this plant for the first time. The extract of W. indica displayed significant antimicrobial and anti-inflammatory activities. Daphnoretin showed a significant inhibition effect on CNE cells and HeLa cells lines at the concentrations ranging from 15.6 to 125 μg/mL, the tendency of antitumor effect was displayed in a concentration-dependent manner. DISCUSSION AND CONCLUSIONS Extracts of W. indica could potentially be used as a promising natural agent in the pharmaceutical industries.
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Affiliation(s)
- Chuan-Li Lu
- College of Food and Bioengineering, South China University of Technology, Guangzhou, 510640, China
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Huang WH, Zhou GX, Wang GC, Chung HY, Ye WC, Li YL. A new biflavonoid with antiviral activity from the roots of Wikstroemia indica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:401-406. [PMID: 22375879 DOI: 10.1080/10286020.2011.653963] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new biflavonoid, 4'-methoxydaphnodorin E, was isolated from the antiviral fraction of Wikstroemia indica against respiratory syncytial virus (RSV). Its structure was determined on the basis of extensive spectroscopic data including HR-ESI-MS and 2D NMR. The biflavonoid was tested for its in vitro anti-RSV activity with cytopathic effect (CPE) reduction assay, and displayed potent effect with 50% inhibitory concentration (IC₅₀) value of 2.8 μM and selective index (SI) value of 5.4.
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Affiliation(s)
- Wei-Huan Huang
- Biology Program, School of Life Science, The Chinese University of Hong Kong, New Territories, Hong Kong, SAR, China
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Abstract
Two new biflavonoids, 4′-methoxydaphnodorin D1 and 4′-methoxydaphnodorin D2, along with six known biflavonoids, were isolated from the roots of Wikstroemia indica. The structures of the new compounds were determined by extensive NMR and HRESIMS spectroscopic analyses in combination with CD measurements.
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Affiliation(s)
- Xiaoli Zhang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drug Research, Guangzhou 510632, China
| | - Guocai Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drug Research, Guangzhou 510632, China
| | - Weihuan Huang
- Department of Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Wencai Ye
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drug Research, Guangzhou 510632, China
| | - Yaolan Li
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drug Research, Guangzhou 510632, China
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Huang W, Zhang X, Wang Y, Ye W, Ooi VE, Chung HY, Li Y. Antiviral biflavonoids from Radix Wikstroemiae (Liaogewanggen). Chin Med 2010; 5:23. [PMID: 20565950 PMCID: PMC2907371 DOI: 10.1186/1749-8546-5-23] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Accepted: 06/21/2010] [Indexed: 11/17/2022] Open
Abstract
Background Radix Wikstroemiae is a common Chinese herbal medicine. The ethyl acetate fraction of the ethanolic extract of W. indica possesses potent in vitro antiviral activity against respiratory syncytial virus (RSV). This study aims to identify the antiviral components of the active fraction. Methods The active fraction of the Radix Wikstroemiae extract was isolated with chromatographic methods such as silica gel, Sephadex LH-20 and semi-preparative high performance liquid chromatography (HPLC) columns. The structures of the isolated compounds were determined based on spectroscopic analyses. The in vitro antiviral activity of the compounds against RSV was tested with the cytopathic effect (CPE) reduction assay and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. Results Four biflavonoids, namely neochamaejasmin B, genkwanol B, genkwanol C and stelleranol, were isolated and characterized. Genkwanol B, genkwanol C and stelleranol, which are stereo isomers of spirobiflavonoids, showed potent anti-RSV activity whereas neochamaejasmin B did not. Conclusion Neochamaejasmin B, genkwanol B, genkwanol C and stelleranol were isolated from Radix Wikstroemiae and the complete absolute configurations of five chiral carbons in stelleranol were substantiated for the first time. Furthermore, the anti-RSV activity of genkwanol B, genkwanol C and stelleranol was reported for the first time.
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Affiliation(s)
- Weihuan Huang
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, 510632, China.
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Lee KH. Discovery and development of natural product-derived chemotherapeutic agents based on a medicinal chemistry approach. JOURNAL OF NATURAL PRODUCTS 2010; 73:500-16. [PMID: 20187635 PMCID: PMC2893734 DOI: 10.1021/np900821e] [Citation(s) in RCA: 196] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Medicinal plants have long been an excellent source of pharmaceutical agents. Accordingly, the long-term objectives of the author's research program are to discover and design new chemotherapeutic agents based on plant-derived compound leads by using a medicinal chemistry approach, which is a combination of chemistry and biology. Different examples of promising bioactive natural products and their synthetic analogues, including sesquiterpene lactones, quassinoids, naphthoquinones, phenylquinolones, dithiophenediones, neo-tanshinlactone, tylophorine, suksdorfin, DCK, and DCP, will be presented with respect to their discovery and preclinical development as potential clinical trial candidates. Research approaches include bioactivity- or mechanism of action-directed isolation and characterization of active compounds, rational drug design-based modification and analogue synthesis, and structure-activity relationship and mechanism of action studies. Current clinical trial agents discovered by the Natural Products Research Laboratories, University of North Carolina, include bevirimat (dimethyl succinyl betulinic acid), which is now in phase IIb trials for treating AIDS. Bevirimat is also the first in a new class of HIV drug candidates called "maturation inhibitors". In addition, an etoposide analogue, GL-331, progressed to anticancer phase II clinical trials, and the curcumin analogue JC-9 is in phase II clinical trials for treating acne and in development for trials against prostate cancer. The discovery and development of these clinical trial candidates will also be discussed.
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Affiliation(s)
- Kuo-Hsiung Lee
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, USA.
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Ho WS, Xue JY, Sun SS, Ooi VE, Li YL. Antiviral activity of daphnoretin isolated from Wikstroemia indica. Phytother Res 2009; 24:657-61. [DOI: 10.1002/ptr.2935] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tran MH, Nguyen HD, Kim JC, Choi JS, Lee HK, Min BS. Phenolic glycosides from Alangium salviifolium leaves with inhibitory activity on LPS-induced NO, PGE(2), and TNF-alpha production. Bioorg Med Chem Lett 2009; 19:4389-93. [PMID: 19500975 DOI: 10.1016/j.bmcl.2009.05.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 05/04/2009] [Accepted: 05/16/2009] [Indexed: 11/16/2022]
Abstract
Three new phenolic glycosides, salviifosides A-C (13), and three known compounds salicin (4), kaempferol (5), and kaempferol 3-O-beta-d-glucopyranoside (6) were isolated from the leaves of Alangium salviifolium (L.f.) Wangerin (Alangiaceae). The structures of the new metabolites were determined on the basic of spectroscopic analyses including two dimensional NMR. The anti-inflammatory activities of new compounds (1-3) were investigated on lipopolysaccharide (LPS)-induced murine macrophage cells line, RAW 264.7. Salviifoside B (2) potentially inhibits the productions of nitric oxide (NO), prostaglandin E(2) (PGE(2)), and tumor necrosis factor-alpha (TNF-alpha).
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Affiliation(s)
- Manh Hung Tran
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 712-702, Republic of Korea
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36
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Chen Y, Fu WW, Sun LX, Wang Q, Qi W, Yu H. A new coumarin from Wikstroemia indica (L.) C. A. Mey. CHINESE CHEM LETT 2009. [DOI: 10.1016/j.cclet.2009.01.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Wollenweber E, Dörr M. Occurrence and Distribution of the Flavone Tricetin and its Methyl Derivatives as Free Aglycones. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800300812] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This paper presents a review of the occurrence of tricetin and its methyl ethers, with respect to their occurrence in the free state. In addition to literature data, our tabulated survey also includes a dozen unpublished results. The review indicates that 5,7,3′,4′,5′-pentahydroxyflavone and its methyl derivatives are more widespread than was known so far. Their presence as aglycones has been proved in a good number of plant species belonging to unrelated families.
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Affiliation(s)
- Eckhard Wollenweber
- Institut für Botanik der TU Darmstadt, D-64287 Darmstadt, Schnittspahnstrasse 3, Germany
| | - Marion Dörr
- Institut für Botanik der TU Darmstadt, D-64287 Darmstadt, Schnittspahnstrasse 3, Germany
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38
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Dholwani K, Saluja A, Gupta A, Shah D. A review on plant-derived natural products and their analogs with anti-tumor activity. Indian J Pharmacol 2008; 40:49-58. [PMID: 21279166 PMCID: PMC3025126 DOI: 10.4103/0253-7613.41038] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 12/10/2007] [Accepted: 05/05/2008] [Indexed: 11/06/2022] Open
Abstract
Traditional medicines, including Chinese herbal formulations, can serve as the source of potential new drugs, and initial research focuses on the isolation of bioactive lead compound(s). The development of novel plant-derived natural products and their analogs for anticancer activity details efforts to synthesize new derivatives based on bioactivity- and mechanism of action-directed isolation and characterization coupled with rational drug design - based modification. Also, the anticancer activity of certain natural products and their analogs can be enhanced by synthesizing new derivatives based on active pharmacophore models; drug resistance and solubility and metabolic limitations can be overcome by appropriate molecular modifications; and new biological properties or mechanisms of action can be added by combining other functional groups or molecules. Preclinical screening for in vitro human cell line panels and selected in vivo xenograft testing then identifies the most promising drug development targets.
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Affiliation(s)
- K.K. Dholwani
- A.R College of Pharmacy affiliated to Sardar Patel University, Vallabh Vidyanagar, Dist. Anand, Gujarat - 388 120, India
| | - A.K. Saluja
- A.R College of Pharmacy affiliated to Sardar Patel University, Vallabh Vidyanagar, Dist. Anand, Gujarat - 388 120, India
| | - A.R. Gupta
- Maliba Pharmacy College affiliated to Veer Narmad South Gujarat University, Gopal Vidyanagar, Tarsadi, Ta-Bardoli, Dist-Surat, Gujarat - 394 350, India
| | - D.R. Shah
- Maliba Pharmacy College affiliated to Veer Narmad South Gujarat University, Gopal Vidyanagar, Tarsadi, Ta-Bardoli, Dist-Surat, Gujarat - 394 350, India
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Jiao J, Zhang Y, Liu C, Liu J, Wu X, Zhang Y. Separation and purification of tricin from an antioxidant product derived from bamboo leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:10086-10092. [PMID: 18001030 DOI: 10.1021/jf0716533] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Tricin (5,7,4'-trihydroxy-3',5'-dimethoxyflavone) occurs in its glycosidic form in rice bran and other grass species such as wheat, barley, and maize. Tricin is considered sufficiently safe for clinical development as a cancer chemopreventive agent, therefore it can be used for cancer prevention. This study established a new method for the preparation of tricin from bamboo leaves as an alternative to traditional methods such as chemical synthesis via the Baker-Venkata-Raman reaction between acetylsyringic acid and phloroacetophenone. Tricin was prepared from an antioxidant product that was derived from bamboo leaves (AOB) by extraction with aqueous ethanol. A concentrated solution of this product was obtained and then processed by polystyrene (AB-8) resin column chromatography and preparative high-performance liquid chromatography (HPLC) with 30% (v/v) acetonitrile in 1% (v/v) acetic acid as the mobile phase. The collected tricin-rich fraction was further sequentially purified by dialysis membrane separation and drowning-out crystallization methods. The purity was assessed by analytical HPLC with 25% (v/v) acetonitrile in 1% (v/v) acetic acid as the mobile phase, and the chemical confirmation was evaluated by infrared, mass, nuclear magnetic resonance, and ultraviolet spectroscopies. Tricin (3.09 g) was prepared from 174 g of a crude column chromatography fraction obtained from 5 L of AOB concentrated solution. The present method is appropriate for preparing quantities of pure tricin, which can be used for the quantification of tricin in various plant herbs and further for pharmaceutical/biomedical applications and evaluation.
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Affiliation(s)
- Jingjing Jiao
- Department of Food Science and Nutrition, School of Biosystems Engineering and Food Science, Zhejiang University, 268 Kaixuan Road, Hangzhou 310029, Zhejiang, China
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Metwally K, Pratsinis H, Kletsas D. Pyrimido[4,5-c]quinolin-1(2H)-ones as a novel class of antimitotic agents: Synthesis and in vitro cytotoxic activity. Eur J Med Chem 2007; 42:344-50. [PMID: 17141923 DOI: 10.1016/j.ejmech.2006.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 10/12/2006] [Accepted: 10/14/2006] [Indexed: 11/22/2022]
Abstract
Several 2-amino-pyrimido[4,5-c]quinolin-1(2H)-ones variously substituted at positions 3, 5, and 9 were prepared from their corresponding lactones. The target compounds were investigated for in vitro cytotoxic activity against a panel of human cancer cell lines, namely, lung fibrosarcoma HT-1080, colon adenocarcinoma HT-29, and breast carcinoma MDA-MB-231. Analysis of data revealed that the presence of chloro at position 9 has a major positive impact on cytotoxic activity. Additional halogen substitution at the para position of the 3-phenyl group further enhances activity. Furthermore, compound (25) was found to dose-dependently inhibit tubulin polymerization. In accordance, flow cytometric analysis of the most potent compounds (23-26) indicated that the tested compounds induce cell cycle arrest in the G(2)/M phase. The obtained results introduce the rarely described pyrimido[4,5-c]quinolin-1(2H)-one ring system as a new scaffold for promising antimitotic agents.
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Affiliation(s)
- Kamel Metwally
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
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41
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Yan J, Tong S, Sheng L, Lou J. Preparative Isolation and Purification of Two Coumarins from Edgeworthia chrysantha Lindl by High Speed Countercurrent Chromatography. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600598969] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jizhong Yan
- a College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou, P. R. China
| | - Shengqiang Tong
- a College of Pharmaceutical Science , Zhejiang University of Technology , Hangzhou, P. R. China
| | - Liuqing Sheng
- b Department of Pharmaceutical Science , JinHua College Profession and Technology , JinHua, P. R. China
| | - Jianzhong Lou
- c Department of Chemical Engineering , North Carolina Agricultural and Technical State University , Greensboro, North Carolina, USA
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42
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43
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Cai H, Al-Fayez M, Tunstall RG, Platton S, Greaves P, Steward WP, Gescher AJ. The rice bran constituent tricin potently inhibits cyclooxygenase enzymes and interferes with intestinal carcinogenesis in ApcMin mice. Mol Cancer Ther 2006; 4:1287-92. [PMID: 16170019 DOI: 10.1158/1535-7163.mct-05-0165] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
While brown rice is a staple dietary constituent in Asia, rice consumed in the Western world is generally white, obtained from brown rice by removal of the bran. Rice bran contains the flavone tricin, which has been shown to inhibit colon cancer cell growth. We tested the hypothesis that tricin interferes with adenoma formation in the Apc(Min) mouse. Mice received tricin (0.2%) in their American Institute of Nutrition 93G diet throughout their postweaning life span (4-18 weeks). Consumption of tricin reduced numbers of intestinal adenomas by 33% (P < 0.05) compared with mice on control diet. We explored whether tricin may exert its effect via inhibition of cyclooxygenase (COX) enzymes. Its effect on COX activity was assessed in purified enzyme preparations in vitro and its ability to reduce prostaglandin E(2) (PGE(2)) levels in human colon-derived human colon epithelial cell (HCEC) and HCA-7 cells in vitro and in Apc(Min) mice in vivo. Tricin inhibited activity of purified COX-1 and COX-2 enzyme preparations with IC(50) values of approximately 1 micromol/L. At 5 micromol/L, it reduced PGE(2) production in HCEC or HCA-7 cells by 36% (P < 0.01) and 35% (P < 0.05), respectively. COX-2 expression was reduced by tricin weakly in HCEC and unaffected in HCA-7 cells. PGE(2) levels in the small intestinal mucosa and blood of Apc(Min) mice that had received tricin were reduced by 34% (P < 0.01) and 40% (P < 0.05), respectively, compared with control mice. The results suggest that tricin should be further evaluated as a putative colorectal cancer chemopreventive agent.
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Affiliation(s)
- Hong Cai
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester Royal Infirmary, Robert Kilpatrick Clinical Sciences Building, UK
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45
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46
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Saarinen NM, Penttinen PE, Smeds AI, Hurmerinta TT, Mäkelä SI. Structural determinants of plant lignans for growth of mammary tumors and hormonal responses in vivo. J Steroid Biochem Mol Biol 2005; 93:209-19. [PMID: 15860264 DOI: 10.1016/j.jsbmb.2004.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Low risk of breast cancer (BC) has been proposed to be associated with high intake of lignans. Some plant lignans are converted to mammalian lignans, e.g., enterolactone (ENL), suggested to be the biologically active lignan forms. Until now, little attention has been paid to the possible biological activities of plant lignans, even though some plant lignans are absorbed and present in serum and urine. In this study, we have investigated the antitumorigenic and endocrine-modulatory activities of different plant lignans in order to clarify the structure-activity relationships. 7-Hydroxymatairesinol (HMR) is [corrected] converted to ENL, and both HMR and ENL inhibit the growth of 7,12-dimethylbenz[a]-anthracene (DMBA)-induced mammary cancer. Nortrachelogenin (NTG) resembles HMR, but has a hydroxyl group at C-8 instead of C-7 and is not converted to ENL. In DMBA-model, NTG showed no inhibition of tumor growth, but increased the uterine weight. Furthermore, life-long exposure to NTG increased uterine weight in immature females and ventral prostate weight in adult males. In contrast, life-long exposure to HMR had no effects on uterine or prostate weights at any age. Our results indicate that a difference in the position of one hydroxyl group results in distinct biological responses in vivo, as well as different lignan metabolite profiles.
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Affiliation(s)
- N M Saarinen
- Functional Foods Forum, University of Turku, Itäinen Pitkäkatu 4A, FI-20520 Turku, Finland.
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47
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48
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Wang LY, Unehara T, Kitanaka S. Anti-inflammatory Activity of New Guaiane Type Sesquiterpene from Wikstroemia indica. Chem Pharm Bull (Tokyo) 2005; 53:137-9. [PMID: 15635251 DOI: 10.1248/cpb.53.137] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In our investigation of in vitro anti-allergic screening of medicinal herbal extracts, the ethyl acetate extract of the root of Wikstroemia indica was observed to inhibit nitric oxide (NO) production in a lipopolysaccharide (LPS) and recombinant mouse interferon-gamma (IFN-gamma) activated murine macrophage-like cell line, RAW 264.7. Fractionation of the active extract led to the isolation of one new guaiane type sesquiterpene, indicanone (1), and two known biflavonoids, sikokianin B (2) and sikokianin C (3). 1 inhibited NO production with IC50 values at 9.3 microM and also inhibit the inducible nitric oxide synhase (iNOS) gene expression. This is the first report of NO production inhibitory activity of Wikstroemia indica and supports the pharmacological use of it, which has been employed as an herbal medicine for the treatment of inflammation.
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Affiliation(s)
- Li-Yan Wang
- Department of Pharmacognosy, College of Pharmacy, Nihon University, Chiba, Japan
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49
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Cai H, Steward WP, Gescher AJ. Determination of the putative cancer chemopreventive flavone tricin in plasma and tissues of mice by HPLC with UV-visible detection. Biomed Chromatogr 2005; 19:518-22. [PMID: 15828058 DOI: 10.1002/bmc.473] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AHPLC method developed and validated for the determination of tricin in human plasma published previously was cross-validated to allow measurement of the flavone tricin in plasma and tissues of mice. Blank samples of plasma, liver or intestinal mucosa were spiked with tricin at 0.5--4.0, 1.0--8.0 and 5.0--40 microg/mL, respectively. These tricin concentration ranges covered the tricin levels achieved in the mouse tissues in the dose-escalating experiments. Analysis afforded linear calibration curves with regression coefficients of >0.99. Endogenous compounds did not interfere with tricin detection when the detection wavelength was set at 355 nm, the maximum absorbance of tricin. Accuracy and precision were <15% for all concentrations in all matrices except for the precision at the lower limit of quantification (0.5 microg/mL) in mouse plasma, which was 18.4%. Consumption of diet mixed with tricin at 0.05, 0.2 or 0.5% for one week furnished steady-state levels in plasma, liver and small intestine in the 1--3 x 10(-7), 4--22 x 10(-7) and 3--46 x 10(-5) m ranges, respectively.
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Affiliation(s)
- Hong Cai
- Cancer Biomarkers and Prevention Research Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK.
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50
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Cai H, Hudson EA, Mann P, Verschoyle RD, Greaves P, Manson MM, Steward WP, Gescher AJ. Growth-inhibitory and cell cycle-arresting properties of the rice bran constituent tricin in human-derived breast cancer cells in vitro and in nude mice in vivo. Br J Cancer 2004; 91:1364-71. [PMID: 15316567 PMCID: PMC2410014 DOI: 10.1038/sj.bjc.6602124] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Tricin, a flavone found in rice bran, inhibits the growth of human-derived malignant MDA-MB-468 breast tumour cells at submicromolar concentrations. As part of the exploration of tricin as a potential cancer chemopreventive agent, we investigated the duration and cell cycle specificity of growth inhibition elicited by tricin in vitro and the effect of tricin on the development of MDA-MB-468 tumours grown in immune-compromised MF-1 mice in vivo. Preincubation of MDA-MB-468 cells with tricin (1–40 μM) for 72 h compromised cell growth after tricin removal, and such irreversibility was not observed in human breast-derived nonmalignant HBL-100 cells. Tricin (⩾5 μM) arrested MDA-MB-468 cells in the G2/M phase of the cell cycle without inducing apoptosis as adjudged by annexin V staining. In nude mice consumption of tricin with the diet (0.2%, w w−1) from 1 week prior to MDA-MB-468 cell implantation failed to impede tumour development. Steady-state levels of tricin in plasma, breast tumour tissue and intestinal mucosa, as measured by HPLC, were 0.13 μM and 0.11 and 63 nmol g−1, respectively. Cells were exposed to tricin (0.11, 1.1 or 11 μM) in vitro for 72 h and then implanted into mice. The volume of tumours in animals bearing cells pre-exposed to 11 μM tricin was less than a third of that in mice with control cells, while tumours from cells incubated with 0.1 or 1.1 μM tricin were indistinguishable from controls. These results suggest that the potent breast tumour cell growth-inhibitory activity of tricin in vitro does not directly translate into activity in the nude mouse bearing the MDA MB-468 tumour. While the results do not support the notion that tricin is a promising candidate for breast cancer chemoprevention, its high levels in the gastrointestinal tract after dietary intake render exploration of its ability to prevent colorectal carcinogenesis propitious.
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Affiliation(s)
- H Cai
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - E A Hudson
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - P Mann
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - R D Verschoyle
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - P Greaves
- Medical Research Council Toxicology Unit, University of Leicester, Leicester LE1 9HN, UK
| | - M M Manson
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - W P Steward
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - A J Gescher
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
- Cancer Biomarkers and Prevention Group, Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK. E-mail:
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