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Acetylation Enhances the Anticancer Activity and Oral Bioavailability of 5-Demethyltangeretin. Int J Mol Sci 2022; 23:ijms232113284. [PMID: 36362072 PMCID: PMC9658984 DOI: 10.3390/ijms232113284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
A kind of hydroxylated polymethoxyflavone (PMFs) existing in the citrus genus, 5-Demethyltangeretin (5-DTAN), has been reported to possess several bioactivities in vitro and in vivo. The aim of this study was to investigate whether acetylation could enhance the anticancer activity and oral bioavailability of 5-DTAN. PC-3 human prostate cancer cells were treated with tangeretin (TAN), 5-DTAN, and 5-acetylated TAN (5-ATAN), and the results showed that the cytotoxic effect 5-ATAN (IC50 value of 5.1 µM) on the cell viability of PC-3 cells was stronger than that of TAN (IC50 value of 17.2 µM) and 5-DTAN (IC50 value of 11.8 µM). Compared to 5-DTAN, 5-ATAN treatment caused a more pronounced DNA ladder, increased the sub-G1 phase population, and induced G2/M phase arrest in the cell cycle of PC-3 cells. We also found that 5-ATAN triggered the activation of caspase-3 and the progression of the intrinsic mitochondrial pathway in PC-3 cells, suggesting the induction of apoptosis. In a cell wound healing test, 5-ATAN dose-dependently reduced the cell migration, and the expression of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9) was decreased after 48 h of 5-ATAN treatment. Moreover, oral administration of 5-ATAN showed a significantly stronger inhibitory effect on tumor size and tumor weight in tumor-bearing nude mice than those of vehicle or the 5-DTAN group (p < 0.05). Furthermore, pharmacokinetic results showed that single-dose oral administration of 5-ATAN exhibited a higher maximum concentration (Cmax) and area under the curve (AUC) of 5-DTAN in plasma than that of 5-DTAN. More extensive distribution of 5-DTAN to most tissues of mice was also observed in mice treated with 5-ATAN for 7 days. In conclusion, acetylation strongly enhances the anticancer activity and oral bioavailability of 5-DTAN and could be a promising strategy to promote the potential bioactivities of natural products.
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Chatterjee A, Khanra R, Chattopadhyay M, Ghosh S, Sahu R, Nandi G, Maji HS, Chakraborty P. Pharmacological studies of rhizomes of extract of Cyperus tegetum, emphasized on anticancer, anti-inflammatory and analgesic activity. JOURNAL OF ETHNOPHARMACOLOGY 2022; 289:115035. [PMID: 35085743 DOI: 10.1016/j.jep.2022.115035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/12/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE With over 950 species, Cyperus is one of the most promising health boosting genera in the Cyperaceae family. Traditional uses of Cyperus sp. have been described for gastrointestinal blood abnormalities, menstrual irregularities, and inflammatory diseases, among others. Cyperus tegetum Roxb belonging to Cyperaceae family, is used in traditional medicine to treat skin cancers. AIM OF THE STUDY The present study was carried out to explore the potential effect of the extract of the plant Cyperus tegetum against different pharmacological activity namely inflammatory, analgesic activity as well as skin cancer activity in mice. MATERIALS AND METHODS Cytotoxicity of the extract was measured by MTT and Live/death assay on HeLa cell line. Skin cancer was induced by 7,12-dimethylbenz(a) anthracene (DMBA) and 12-O-tetradecanoylphorbol-13-acetate (TPA) in mice to measure its effects. RESULT Stigmasterol and some poly phenolic compounds are identified using HPTLC process from the methanol extract of the rhizome of the plant Cyperus tegetum (CT-II). After confirmation of the presence of different polyphenolic compound and triterpenoids in the extract, it was subject to MTT and Live/death assay on HeLa cell line. From the observation it could be concluded that the IC50 of the extract is 300 μg/ml. Thus, the CTII was evaluated further for its in vivo anticancer property. In the tumorigenesis study, the number of tumor growths, the area and weight of the tumor significantly decreases with increment in the dose of CT-II extract and some elevated enzyme release in renal (creatinine, urea) as well as hepatic (AST, ALT, ALP) enzymes are also controlled with the increased dose of the same extract. The elevated enzyme release may be due to cancer induced rupture of the plasma and cellular damage. This CT-II extract also exhibits some other pharmacological activity like anti-inflammatory and analgesic activity. CONCLUSION As metabolic activation via carcinogens and inflammation response plays important role in development of cancer, antioxidant, anti-inflammatory and analgesic properties can be correlated with anti-cancer properties. Taken all the above studies, it was illustrated that the extract of Cyperus tegetum might be a promising compound to reduce skin cancer risk.
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Affiliation(s)
- Atanu Chatterjee
- Bengal School of Technology, Chinsurah, Hooghly, West Bengal, India.
| | - Ritu Khanra
- Department of Pharmaceutical Technology, JIS University, Agarpara, Kolkata, West Bengal, India.
| | | | - Santanu Ghosh
- Department of Pharmaceutical Technology, JIS University, Agarpara, Kolkata, West Bengal, India.
| | - Ranabir Sahu
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling, India.
| | - Gouranga Nandi
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling, India.
| | - Himangshu Sekhar Maji
- Department of Pharmaceutical Technology, JIS University, Agarpara, Kolkata, West Bengal, India.
| | - Pranabesh Chakraborty
- Maulana Abul Kalam Azad University of Technology, Bidhannagar, Kolkata, West Bengal, India.
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Wang X, Li D, Cao Y, Ho CT, Huang Q. Identification and Quantification of Both Methylation and Demethylation Biotransformation Metabolites of 5-Demethylsinensetin in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3162-3171. [PMID: 35230106 DOI: 10.1021/acs.jafc.1c07509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
5-Demethylated polymethoxyflavones (5-OH PMFs) are the most unique monodemethylated PMFs with relatively low polarities and are proved to possess better anticancer and anti-inflammatory effects than their respective permethoxylated ones. However, their detailed in vivo metabolic fates have not been fully studied. 5-Demethylsinensetin (5-OH Sin), being one of the 5-demethylated citrus PMFs, was used in the present research to investigate its biotransformation in pharmacokinetics and excretion in rats. The results showed that 5-OH Sin was mostly accumulated in the large intestine, indicating its poor absorption in the small intestine. In addition, 5,3'-didemethylsinensetin and 5,4'-didemethylsinensetin were identified as two dominated metabolites of 5-OH Sin, and the C-3' position of 5-OH Sin was more facile to be demethylated in systemic circulation. Moreover, other than demethylation reactions, the methylation transformation of 5-OH Sin and its metabolites were also observed and quantified, suggesting that the bidirectional biotransformation between 5-OH Sin and its parent compound, Sin, occurred under in vivo conditions.
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Affiliation(s)
- Xiaoqi Wang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Dongli Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong 510642, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Qingrong Huang
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Alhamad DW, Elgendy SM, Al-Tel TH, Omar HA. Tangeretin as an adjuvant and chemotherapeutic sensitizer against various types of cancers: a comparative overview. J Pharm Pharmacol 2021; 73:601-610. [PMID: 33772294 DOI: 10.1093/jpp/rgab013] [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: 10/20/2020] [Accepted: 01/18/2021] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Cancer is a leading cause of disabling morbidities and death worldwide. Although there are various strategies for the management of cancer, the severe adverse effects negatively impact the patient's quality of life. In addition, the development of resistance limits the efficacy of many chemotherapeutics. Many natural agents are capable of reducing the adverse effects associated with chemotherapy and improving the therapeutic outcome. Tangeretin, a polymethoxy flavone, is one of the promising natural anticancer agents. KEY FINDINGS Tangeretin not only targets various malignancies but also synergizes chemotherapeutic agents and reverses cancer resistance. Hence, the application of tangeretin as an adjuvant in cancer chemotherapy would be a promising strategy. SUMMARY This work critically highlighted the proposed anticancer activity of tangeretin and discussed its potential combination with various chemotherapeutic agents. Additionally, it shed light on tangeretin chemical derivatives with improved pharmacokinetic and pharmacodynamic activity. Finally, this review described flavonoid biosynthetic pathways and how bioengineering can be employed to enhance the production yield of tangeretin. Thus, this work paves the way for the rational clinical utilization of tangeretin as a safe and effective adjuvant in chemotherapeutic protocols.
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Affiliation(s)
- Dima W Alhamad
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Sara M Elgendy
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Taleb H Al-Tel
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Hany A Omar
- College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
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Lee PS, Chiou YS, Chou PY, Nagabhushanam K, Ho CT, Pan MH. 3'-Hydroxypterostilbene Inhibits 7,12-Dimethylbenz[a]anthracene (DMBA)/12-O-Tetradecanoylphorbol-13-Acetate (TPA)-Induced Mouse Skin Carcinogenesis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 81:153432. [PMID: 33310310 DOI: 10.1016/j.phymed.2020.153432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/16/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND A natural pterostilbene analogue isolated from the herb Sphaerophysa salsula, 3'-hydroxypterostilbene (HPSB), exhibits antiproliferative activity in several cancer cell lines; however, the inhibitory effects of HPSB on skin carcinogenesis remains unclear. PURPOSE The aim of this study was to evaluate the inhibitory effects of HPSB on two-stage skin carcinogenesis in mice and its potential mechanism. STUDY DESIGN AND METHODS This study investigated the anti-inflammatory and anti-tumor effects of HPSB in the 12-O-tetradecanoylphorbol-13-acetate (TPA)-stimulated acute skin inflammation and 7,12-dimethylbenz[a]anthracene (DMBA)/TPA-induced two-stage skin carcinogenesis model. In addition, the effects of HPSB on the modulation of the phase I and phase II metabolizing enzymes in the DMBA-induced HaCaT cell model were investigated. RESULTS The results provide evidence that topical treatment with HPSB significantly inhibits TPA-induced epidermal hyperplasia and leukocyte infiltration through the down-regulation of cyclooxygenase-2 (COX-2), matrix metalloprotein-9 (MMP-9), and ornithine decarboxylase (ODC) protein expression in mouse skin. Furthermore, HPSB suppresses DMBA/TPA-induced skin tumor incidence and multiplicity via the inhibition of proliferating cell nuclear antigen (PCNA), Cyclin B1 and cyclin-dependent kinase 1 (CDK1) expression in the two-stage skin carcinogenesis model. In addition, pretreatment with HPSB markedly reduces DMBA-induced cytochrome P450 1A1 (CYP1A1) and cytochrome P450 1B1 (CYP1B1) gene expression in human keratinocytes; however, HPSB does not significantly affect the gene expression of the phase II enzymes. CONCLUSION This is the first study to show that topical treatment with HPSB prevents mouse skin tumorigenesis. Overall, our study suggests that natural HPSB may serve as a novel chemopreventive agent capable of preventing carcinogen activation and inflammation-associated tumorigenesis.
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Affiliation(s)
- Pei-Sheng Lee
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Shiou Chiou
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan; Tsinghua Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen, China
| | - Pin-Yu Chou
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan.
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Wu X, Li Z, Sun Y, Li F, Gao Z, Zheng J, Xiao H. Identification of Xanthomicrol as a Major Metabolite of 5-Demethyltangeretin in Mouse Gastrointestinal Tract and Its Inhibitory Effects on Colon Cancer Cells. Front Nutr 2020; 7:103. [PMID: 32850933 PMCID: PMC7405597 DOI: 10.3389/fnut.2020.00103] [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: 03/27/2020] [Accepted: 06/08/2020] [Indexed: 12/26/2022] Open
Abstract
5-Demethyltangeretin (5DT) is a unique polymethoxyflavone mainly found in the peel of citrus, and has shown potent suppressive effects on multiple human cancer cells. Biotransformation plays a critical role in the biological activities of dietary bioactive components because their metabolites may exert significant bioactivities. In the present study, the metabolic fate of 5DT in mouse gastrointestinal (GI) tract after long-term oral intake and the anti-cancer effects of its major metabolite were determined. It was found that 5DT underwent extensive biotransformation after oral ingestion in mice. A major demethylated metabolite was produced via phase I metabolism, while conjugates (glucuronide and sulfate) were generated via phase II metabolism. Specifically, 4'-position on the B ring of 5DT was the major site for demethylation reaction, which led to the production of xanthomicrol (XAN) as a major metabolite. More importantly, the level of XAN in the colon was significantly higher than that of 5DT in 5DT-fed mice. Thus, we further determined the suppressive effects of XAN on human colon cancer HCT116 cells. We found that XAN effectively inhibited the proliferation of HCT116 cells by arresting cell cycle and inducing cellular apoptosis, which was further evidenced by upregulated p53 and p21 and downregulated cyclin D and CDK4/6 level. In conclusion, this study identified XAN as a major metabolite of 5DT in mouse GI tract, and demonstrated its suppressive effects on HCT116 colon cancer cells.
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Affiliation(s)
- Xian Wu
- Department of Food Science, University of Massachusetts, Amherst, MA, United States.,Department of Kinesiology and Health, Miami University, Oxford, OH, United States
| | - Zhengze Li
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
| | - Yue Sun
- Department of Food Science, University of Massachusetts, Amherst, MA, United States.,Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Fang Li
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
| | - Zili Gao
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
| | - Jinkai Zheng
- Department of Food Science, University of Massachusetts, Amherst, MA, United States.,Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
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Chou YC, Li S, Ho CT, Pan MH. Preparation and evaluation of self-microemulsifying delivery system containing 5-demethyltangeretin on inhibiting xenograft tumor growth in mice. Int J Pharm 2020; 579:119134. [PMID: 32057886 DOI: 10.1016/j.ijpharm.2020.119134] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/16/2020] [Accepted: 02/09/2020] [Indexed: 12/24/2022]
Abstract
5-Demethyltangeretin (5-DTAN), a polymethoxylated flavone found in citrus peels, exhibits highly potent anti-cancer activity. However, 5-DTAN is a hydrophobic compound with poor aqueous solubility, which limits its oral bioavailability and efficacy. In this study, we aimed to develop and characterize an optimal self-microemulsifying delivery system (SMEDS) formulated for 5-DTAN and to assess its anticancer activity in a xenograft model. SMEDS is a lipid-based formulation and typically comprises oil, surfactant, and co-surfactant. The results from our solubility and compatibility test revealed that ethyl oleate and d-limonene were appropriate for use as an oil phases. The optimal formulation comprised ethyl oleate/d-limonene (10%/5%), Cremophor® EL (59.5%), and PEG 400 (25.5%). With this optimal formulation, the mean particle size was 97.1 ± 6.50 nm with the highest 5-DTAN loading (3.01 ± 0.38 mg/mL) determined by photon correlation spectroscopy. The transmission electron microscopy (TEM) morphology of 5-DTAN microemulsion droplets demonstrated a spherical shape and uniform size. Our findings suggest that using 5-DTAN loading SMEDS is an effective approach for inhibiting tumor growth in colon cancer xenograft mice. In summary, this study is the first to successfully demonstrate that oral administration of 5-DTAN-loaded SMEDS serves as a promising nutraceutical for cancer prevention.
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Affiliation(s)
- Ya-Chun Chou
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Shiming Li
- Hubei Key Laboratory for Processing & Application of Catalytic Materials, College of Chemistry & Chemical Engineering, Huanggang Normal University, Hubei, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan.
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Cheng YP, Li S, Chuang WL, Li CH, Chen GJ, Chang CC, Or CHR, Lin PY, Chang CC. Blockade of STAT3 Signaling Contributes to Anticancer Effect of 5-Acetyloxy-6,7,8,4'-Tetra-Methoxyflavone, a Tangeretin Derivative, on Human Glioblastoma Multiforme Cells. Int J Mol Sci 2019; 20:ijms20133366. [PMID: 31323961 PMCID: PMC6651290 DOI: 10.3390/ijms20133366] [Citation(s) in RCA: 11] [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: 05/30/2019] [Revised: 07/04/2019] [Accepted: 07/07/2019] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most aggressive primary brain tumor with poor prognosis, largely due to resistance to current radiotherapy and Temozolomide chemotherapy. The constitutive activation of Signal Transducer and Activator of Transcription 3 (STAT3) is evidenced as a pivotal driver of GBM pathogenesis and therapy resistance, and hence, is a promising GBM drug target. 5-acetyloxy-6,7,8,4'-tetramethoxyflavone (5-AcTMF) is an acetylated derivative of Tangeretin which is known to exert anticancer effects on breast, colon, lung, and multiple myeloma; however, its effect on GBM remains elusive. Herein, we reported that 5-AcTMF suppressed the viability and clonogenicity along with inducing apoptosis in multiple human GBM cell lines. Mechanistic analyses further revealed that 5-AcTMF lowered the levels of Tyrosine 705-phosphorylated STAT3 (p-STAT3), a canonical marker of STAT3 activation, but also dampened p-STAT3 upregulation elicited by Interleukin-6. Notably, ectopic expression of dominant-active STAT3 impeded 5-AcTMF-induced suppression of viability and clonogenicity plus apoptosis induction in GBM cells, confirming the prerequisite of STAT3 blockage for the inhibitory action of 5-AcTMF on GBM cell survival and growth. Additionally, 5-AcTMF impaired the activation of STAT3 upstream kinase JAK2 but also downregulated antiapoptotic BCL-2 and BCL-xL in a STAT3-dependent manner. Moreover, the overexpression of either BCL-2 or BCL-xL abrogated 5-AcTMF-mediated viability reduction and apoptosis induction in GBM cells. Collectively, we, for the first time, revealed the anticancer effect of 5-AcTMF on GBM cells, which was executed via thwarting the JAK2-STAT3-BCL-2/BCL-xL signaling axis. Our findings further implicate the therapeutic potential of 5-AcTMF for GBM treatment.
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Affiliation(s)
- Yen-Po Cheng
- Division of Neurosurgery, Department of Surgery, Yuanlin Changhua Christian Hospital, Changhua 50006, Taiwan
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan
| | - Shiming Li
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, China
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Wan-Ling Chuang
- Transplant Medicine & Surgery Research Center, Changhua Christian Hospital, Changhua 50006, Taiwan
| | - Chia-Hsuan Li
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan
| | - Guan-Jun Chen
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan
| | - Ching-Chin Chang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chi-Hung R Or
- Department of Anesthesiology, Tungs' Taichung MetroHarbor Hospital, Taichung 43503, Taiwan
| | - Ping-Yi Lin
- Transplant Medicine & Surgery Research Center, Changhua Christian Hospital, Changhua 50006, Taiwan.
- Department of Medical Research, China Medical University Hospital, Taichung 40447, Taiwan.
| | - Chia-Che Chang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung 40227, Taiwan.
- Department of Medical Research, China Medical University Hospital, Taichung 40447, Taiwan.
- Department of Life Sciences, The iEGG and Animal Biotechnology Research Center, Ph.D. Program in Translational Medicine, Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan.
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
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Guo S, Wu X, Zheng J, Charoensinphon N, Dong P, Qiu P, Song M, Tang Z, Xiao H. Anti-inflammatory effect of xanthomicrol, a major colonic metabolite of 5-demethyltangeretin. Food Funct 2018; 9:3104-3113. [PMID: 29808211 DOI: 10.1039/c8fo00279g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
5-Demethyltengeretin (5DT) is a citrus flavonoid with various potential health benefits. To provide physiologically relevant information on the anti-inflammatory properties of 5DT, we identified the major metabolite of 5DT in the mouse colon and established its anti-inflammatory effects in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. CD-1 mice were fed with a 5DT-containing diet for four weeks, and colonic mucosa samples were collected and subjected to LC-MS analysis. Xanthomicrol (XAN) was identified as the major metabolite of 5DT in the mouse colon. More importantly, the colonic level of XAN was about 3.1-fold higher than that of 5DT. The anti-inflammatory effects of 5DT and XAN were determined in LPS-stimulated macrophages. XAN produced significant inhibitory effects on the production of nitric oxide and PGE2. Western blotting and real-time PCR analyses demonstrated that XAN greatly decreased the protein and mRNA levels of iNOS as well as the protein level of COX-2. Furthermore, XAN also reduced the production of pro-inflammatory cytokine IL-1β and induced the expression of anti-oxidative enzyme HO-1. CONCLUSION Our results demonstrated that XAN is a major metabolite of 5DT in the colon of mice fed with 5DT, and XAN may play important roles in the anti-inflammatory effects elicited by orally administered 5DT.
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Affiliation(s)
- Shanshan Guo
- Department of Food Science and Nutrition, University of Jinan, Jinan, Shandong, P. R. China
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Wang Q, Qin X, Liang Z, Li S, Cai J, Zhu Z, Liu G. HPLC–DAD–ESI–MS2 analysis of phytochemicals from Sichuan red orange peel using ultrasound-assisted extraction. FOOD BIOSCI 2018. [DOI: 10.1016/j.fbio.2018.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hung WL, Liu CM, Lai CS, Ho CT, Pan MH. Inhibitory effect of garcinol against 12-O-tetradecanoylphorbol 13-acetate-induced skin inflammation and tumorigenesis in mice. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.07.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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12
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Lai CS, Wu JC, Ho CT, Pan MH. Disease chemopreventive effects and molecular mechanisms of hydroxylated polymethoxyflavones. Biofactors 2015; 41:301-13. [PMID: 26453173 DOI: 10.1002/biof.1236] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/01/2015] [Indexed: 01/12/2023]
Abstract
Recent increasing attention in research of polymethoxyflavones (PMFs) from Citrus genus because of their wide range of biological properties has been reported in various studies. Hydroxylated PMFs are unique flavones and recognized as the methoxy group of PMFs that is substituted for hydroxyl one. Hydroxylated PMFs are naturally existed in citrus peel and other plants as well as occurred as metabolites of their PMFs counterparts. Several in vitro and in vivo studies have documented the chemopreventive effects of hydroxylated PMFs including anti-cancer, anti-inflammation, anti-atherosclerosis, and neuroprotection. They function to regulate cell death, proliferation, differentiation, repair, and metabolism through acting on modulation of signaling cascade, gene transcription, and protein function and enzyme activity. The mechanisms of action of hydroxylated PMFs in disease chemoprevention depend on their structure, the number, and position of hydroxyl group. Although the efficacy of hydroxylated PMFs in chemoprevention and the oral bioavailability requires further investigation, they still provide great promise for improving human health. This review highlights the recent published data of hydroxylated PMFs with chemopreventive potential and the underlying mechanism involved.
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Affiliation(s)
- Ching-Shu Lai
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Jia-Ching Wu
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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Huang H, Chen AY, Rojanasakul Y, Ye X, Rankin GO, Chen YC. Dietary compounds galangin and myricetin suppress ovarian cancer cell angiogenesis. J Funct Foods 2015; 15:464-475. [PMID: 26113875 DOI: 10.1016/j.jff.2015.03.051] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Galangin and myricetin are flavonoids isolated from vegetables and fruits which exhibit anti-proliferative activity in human cancer cells. In this study, their anti-angiogenic effects were investigated with in vitro (HUVEC) and in vivo (CAM) models, which showed that galangin and myricetin inhibited angiogenesis induced by OVCAR-3 cells. The molecular mechanisms through which galangin and myricetin suppress angiogenesis were also studied. It was observed that galangin and myricetin inhibited secretion of the key angiogenesis mediator vascular endothelial growth factor (VEGF) and decreased levels of p-Akt, p-70S6K and hypoxia-inducible factor-1α (HIF-1α) proteins in A2780/CP70 and OVCAR-3 cells. Transient transfection experiments showed that galangin and myricetin inhibited secretion of VEGF by the Akt/p70S6K/ HIF-1α pathway. Moreover, a novel pathway, p21/HIF-1α/VEGF, was found to be involved in the inhibitory effect of myricetin on angiogenesis in OVCAR-3 cells. These data suggest that galangin and myricetin might serve as potential anti-angiogenic agents in the prevention of ovarian cancers dependent on new blood vessel networks.
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Affiliation(s)
- Haizhi Huang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, China ; College of Science, Technology & Mathematics, Alderson Broaddus University, Philippi, WV 26416, USA
| | - Allen Y Chen
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Yon Rojanasakul
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, China
| | - Gary O Rankin
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Yi Charlie Chen
- College of Science, Technology & Mathematics, Alderson Broaddus University, Philippi, WV 26416, USA
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Chen YK, Wang HC, Ho CT, Chen HY, Li S, Chan HL, Chung TW, Tan KT, Li YR, Lin CC. 5-Demethylnobiletin promotes the formation of polymerized tubulin, leads to G2/M phase arrest and induces autophagy via JNK activation in human lung cancer cells. J Nutr Biochem 2015; 26:484-504. [DOI: 10.1016/j.jnutbio.2014.12.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 12/01/2014] [Accepted: 12/02/2014] [Indexed: 12/12/2022]
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