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Asnaashari S, Amjad E, Sokouti B. Synergistic effects of flavonoids and paclitaxel in cancer treatment: a systematic review. Cancer Cell Int 2023; 23:211. [PMID: 37743502 PMCID: PMC10518113 DOI: 10.1186/s12935-023-03052-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 09/03/2023] [Indexed: 09/26/2023] Open
Abstract
Paclitaxel is a natural anticancer compound with minimal toxicity, the capacity to stabilize microtubules, and high efficiency that has remained the standard of treatment alongside platinum-based therapy as a remedy for a variety of different malignancies. In contrast, polyphenols such as flavonoids are also efficient antioxidant and anti-inflammatory and have now been shown to possess potent anticancer properties. Therefore, the synergistic effects of paclitaxel and flavonoids against cancer will be of interest. In this review, we use a Boolean query to comprehensively search the well-known Scopus database for literature research taking the advantage of paclitaxel and flavonoids simultaneously while treating various types of cancer. After retrieving and reviewing the intended investigations based on the input keywords, the anticancer mechanisms of flavonoids and paclitaxel and their synergistic effects on different targets raging from cell lines to animal models are discussed in terms of the corresponding involved signaling transduction. Most studies demonstrated that these signaling pathways will induce apoptotic / pro-apoptotic proteins, which in turn may activate several caspases leading to apoptosis. Finally, it can be concluded that the results of this review may be beneficial in serving as a theoretical foundation and reference for future studies of paclitaxel synthesis, anticancer processes, and clinical applications involving different clinical trials.
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Affiliation(s)
- Solmaz Asnaashari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Amjad
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Babak Sokouti
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Telomerase inhibitor MST-312 and quercetin synergistically inhibit cancer cell proliferation by promoting DNA damage. Transl Oncol 2022; 27:101569. [PMID: 36274541 PMCID: PMC9596868 DOI: 10.1016/j.tranon.2022.101569] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 09/29/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Quercetin is a natural flavonoid with well-established anti-proliferative activities against a variety of cancers. Telomerase inhibitor MST-312 also exhibits anti-proliferative effect on various cancer cells independent of its effect on telomere shortening. However, due to their low absorption and toxicity at higher doses, their clinical development is limited. In the present study, we examine the synergistic potential of their combination in cancer cells, which may result in a decrease in the therapeutic dosage of these compounds. We report that MST-312 and quercetin exhibit strong synergism in ovarian cancer cells with combination index range from 0.2 to 0.7. Co-treatment with MST-312 and quercetin upregulates the DNA damage and augments apoptosis when compared to treatment with either compound alone or a vehicle. We also examined the effect of these compounds on the proliferation of normal ovarian surface epithelial cells (OSEs). MST-312 has a cytoprotective impact in OSEs at lower dosages, but is inhibitory at higher doses. Quercetin did not affect the OSEs proliferation at low concentrations while at higher concentrations it is inhibitory. Notably, combination of MST-312 and quercetin had no discernible impact on OSEs. These observations have significant implications for future efforts towards maximizing efficacy in cancer therapeutics as this co-treatment specifically affects cancer cells and reduces the effective dosage of both the compounds.
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Vazhappilly CG, Amararathna M, Cyril AC, Linger R, Matar R, Merheb M, Ramadan WS, Radhakrishnan R, Rupasinghe HPV. Current methodologies to refine bioavailability, delivery, and therapeutic efficacy of plant flavonoids in cancer treatment. J Nutr Biochem 2021; 94:108623. [PMID: 33705948 DOI: 10.1016/j.jnutbio.2021.108623] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/21/2021] [Accepted: 02/28/2021] [Indexed: 02/06/2023]
Abstract
Over the last two decades, several advancements have been made to improve the therapeutic efficacy of plant flavonoids, especially in cancer treatment. Factors such as low bioavailability, poor flavonoid stability and solubility, ineffective targeted delivery, and chemo-resistance hinder the application of flavonoids in anti-cancer therapy. Many anti-cancer compounds failed in the clinical trials because of unexpected altered clearance of flavonoids, poor absorption after administration, low efficacy, and/or adverse effects. Hence, the current research strategies are focused on improving the therapeutic efficacy of plant flavonoids, especially by enhancing their bioavailability through combination therapy, engineering gut microbiota, regulating flavonoids interaction with adenosine triphosphate binding cassette efflux transporters, and efficient delivery using nanocrystal and encapsulation technologies. This review aims to discuss different methodologies with examples from reported dietary flavonoids that showed an enhanced anti-cancer efficacy in both in vitro and in vivo models. Further, the review discusses the recent progress in biochemical modifications of flavonoids to improve bioavailability, solubility, and therapeutic efficacy.
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Affiliation(s)
| | - Madumani Amararathna
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
| | - Asha Caroline Cyril
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
| | - Rebecca Linger
- Department of Pharmaceutical and Administrative Sciences, University of Charleston, Charleston, West Virginia, USA
| | - Rachel Matar
- Department of Biotechnology, American University of Ras Al Khaimah, Ras Al Khaimah, UAE
| | - Maxime Merheb
- Department of Biotechnology, American University of Ras Al Khaimah, Ras Al Khaimah, UAE
| | - Wafaa S Ramadan
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE; College of Medicine, University of Sharjah, Sharjah, UAE
| | - Rajan Radhakrishnan
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
| | - H P Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada; Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
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Zhang X, Huang J, Yu C, Xiang L, Li L, Shi D, Lin F. Quercetin Enhanced Paclitaxel Therapeutic Effects Towards PC-3 Prostate Cancer Through ER Stress Induction and ROS Production. Onco Targets Ther 2020; 13:513-523. [PMID: 32021294 PMCID: PMC6970612 DOI: 10.2147/ott.s228453] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/16/2019] [Indexed: 12/24/2022] Open
Abstract
Introduction Prostate cancer is one of the most common cancers threatening public health worldwide. Although chemotherapy plays an important role in treating prostate cancer, it leads to many adverse effects and is prone to drug resistance. Quercetin, a natural product, is used in traditional Chinese medicine because of its strong antitumor activity and few side effects. Methods In this study, we combined quercetin and paclitaxel to kill prostate cancer cells in vivo and in vitro, and we investigated the relevant mechanism of this combination treatment. After the cancer cells were treated with quercetin or/and paclitaxel, cell growth inhibition, apoptosis, the cell cycle, reactive oxygen species (ROS) generation, and several endoplasmic reticulum (ER) stress signaling pathway related gene expressions were evaluated. Results The combined treatment with quercetin and paclitaxel significantly inhibited cell proliferation, increased apoptosis, arrested the cell cycle at the G2/M phase, inhibited cell migration, dramatically induced ER stress to occur, and increased ROS generation. In a PC-3 cancer-bearing murine model, this combination treatment exerted the most beneficial therapeutic effects, and quercetin increased the cancer cell-killing effects of paclitaxel, with nearly no side effects compared with the single paclitaxel treatment group. Conclusion Combination treatment possessed enhanced anti-cancer effects, and these results will provide a basis for treating prostate cancer using a combination of quercetin and paclitaxel.
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Affiliation(s)
- Xiangyu Zhang
- Department of Pathology, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Jingwen Huang
- Anhui Province Key Laboratory of Translational Cancer Research Affiliated to Bengbu Medical University, Bengbu 233004, People's Republic of China
| | - Chao Yu
- Department of Clinical Medicine, Jining Medical University, Jining 272000, People's Republic of China
| | - Longquan Xiang
- Department of Pathology, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Liang Li
- Department of Pathology, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Dongmei Shi
- Department of Dermatology, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Fanzhong Lin
- Department of Pathology, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
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Metabolic Variations of Flavonoids in Leaves of T. media and T. mairei Obtained by UPLC-ESI-MS/MS. Molecules 2019; 24:molecules24183323. [PMID: 31547329 PMCID: PMC6767174 DOI: 10.3390/molecules24183323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 12/11/2022] Open
Abstract
The needles of Taxus species contain a large number of bioactive compounds, such as flavonoids. In the present study, the total flavonoid content in leaves of Taxus media and Taxus mairei was 19.953 and 14.464 mg/g, respectively. A total of 197 flavonoid metabolites (70 flavones, 42 flavonols, 26 flavone C-glycosides, 20 flavanones, 15 anthocyanins, 13 isoflavones, 6 flavonolignans, and 5 proanthocyanidins) were identified for the first time by a widely targeted Ultra Performance Liquid Chromatography-Electrospray Ionization-Tandem Mass Spectrometry (UPLC-ESI-MS/MS) method within the two Taxus species, containing 160 common metabolites, with 37 unique metabolites merely determined in T. mairei or T. media. Moreover, 42 differential flavonoid metabolites were screened in the two Taxus species, which showed specific metabolic patterns in isoflavonoid biosynthesis, anthocyanin biosynthesis, and flavone and flavonol biosynthesis pathways. Compared to T. mairei, a more activated phenylpropanoid pathway was found in T. media, which could be responsible for the higher content of total flavonoids in T. media. Our results provide new insights into the diversity of flavonoid metabolites between T. mairei and T. media, and provide a theoretical basis for the sufficient utilization of Taxus species and the development of novel drugs.
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Kundur S, Prayag A, Selvakumar P, Nguyen H, McKee L, Cruz C, Srinivasan A, Shoyele S, Lakshmikuttyamma A. Synergistic anticancer action of quercetin and curcumin against triple‐negative breast cancer cell lines. J Cell Physiol 2018; 234:11103-11118. [DOI: 10.1002/jcp.27761] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/29/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Sai Kundur
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Amrita Prayag
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Priyanga Selvakumar
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Hung Nguyen
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Lloyd McKee
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Clairissa Cruz
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Asha Srinivasan
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Sunday Shoyele
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Ashakumary Lakshmikuttyamma
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
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Hwang HV, Tran DT, Rebuffatti MN, Li CS, Knowlton AA. Investigation of quercetin and hyperoside as senolytics in adult human endothelial cells. PLoS One 2018; 13:e0190374. [PMID: 29315311 PMCID: PMC5760026 DOI: 10.1371/journal.pone.0190374] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 12/13/2017] [Indexed: 01/09/2023] Open
Abstract
Quercetin has been reported to act as a senolytic by selectively removing senescent endothelial cells, and thus it would seem quercetin could revolutionize the field of gerontology. However, given quercetin's narrow therapeutic index reported in work done with human umbilical vein endothelial cells (HUVECs), we hypothesized that quercetin is not innocuous for non-senescent adult human vascular endothelial cells at concentrations that have been reported to be safe for proliferating HUVECs. Furthermore, we investigated quercetin 3-D-galactoside (Q3G; hyperoside), an inactive quercetin derivative that needs to be cleaved by beta-galactosidase overexpressed in senescent cells to release quercetin, as a potential safer senolytic. We compared the effectiveness of quercetin and Q3G in primary human coronary artery endothelial cells (HCAEC), which are adult microvascular cells. We found that quercetin caused cell death in non-senescent endothelial cells at a concentration that has been reported to selectively remove senescent cells, and that Q3G was not cytotoxic to either young or senescent cells. Thus, in primary adult human endothelial cells, quercetin and Q3G are not senolytics. Earlier work reporting positive results was done with HUVECs, and given their origin and the disparate findings from the current study, these may not be the best cells for evaluating potential senolytics in clinically relevant endothelial cells.
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Affiliation(s)
- HyunTae V. Hwang
- Molecular & Cellular Cardiology, Cardiovascular Division, Department of Internal Medicine, University of California-Davis, Davis, CA, United States of America
| | - Darlene Thuy Tran
- Molecular & Cellular Cardiology, Cardiovascular Division, Department of Internal Medicine, University of California-Davis, Davis, CA, United States of America
| | - Michelle Nicole Rebuffatti
- Molecular & Cellular Cardiology, Cardiovascular Division, Department of Internal Medicine, University of California-Davis, Davis, CA, United States of America
| | - Chin-Shang Li
- Division of Biostatistics, Department of Public Health Sciences, University of California-Davis, Davis, CA, United States of America
| | - Anne A. Knowlton
- Molecular & Cellular Cardiology, Cardiovascular Division, Department of Internal Medicine, University of California-Davis, Davis, CA, United States of America
- VA Medical Center, Sacramento, CA, United States of America
- Pharmacology Department, University of California-Davis, Davis, CA, United States of America
- * E-mail:
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Angka L, Spagnuolo PA. From food to clinical medicine—nutraceuticals as clinical therapeutics for hematological malignancies. Curr Opin Food Sci 2015. [DOI: 10.1016/j.cofs.2015.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Weerachayaphorn J, Amaya MJ, Spirli C, Chansela P, Mitchell KA, Ananthanarayanan M, Nathanson MH. Nuclear Factor, Erythroid 2-Like 2 Regulates Expression of Type 3 Inositol 1,4,5-Trisphosphate Receptor and Calcium Signaling in Cholangiocytes. Gastroenterology 2015; 149:211-222.e10. [PMID: 25796361 PMCID: PMC4478166 DOI: 10.1053/j.gastro.2015.03.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 02/27/2015] [Accepted: 03/13/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Most cholestatic disorders are caused by defects in cholangiocytes. The type 3 isoform of the inositol 1,4,5-trisphosphate receptor (ITPR3) is the most abundant intracellular calcium release channel in cholangiocytes. ITPR3 is required for bicarbonate secretion by bile ducts, and its expression is reduced in intrahepatic bile ducts of patients with cholestatic disorders. We investigated whether the nuclear factor, erythroid 2-like 2 (NFE2L2 or NRF2), which is sensitive to oxidative stress, regulates expression of ITPR3. METHODS The activity of the ITPR3 promoter was measured in normal human cholangiocyte (NHC) cells and primary mouse cholangiocytes. Levels of ITPR3 protein and messenger RNA were examined by immunoblot and polymerase chain reaction analyses, respectively. ITPR3 activity was determined by measuring calcium signaling in normal human cholangiocyte cells and secretion in isolated bile duct units. Levels of NRF2 were measured in liver tissues from rats with cholestasis (induced by administration of α-napthylisothiocyanate) and from patients with biliary diseases. RESULTS We identified a musculo-aponeurotic fibrosarcoma recognition element in the promoter of ITPR3 that bound NRF2 directly in NHC cells and mouse cholangiocytes. Increasing binding of NRF2 at this site resulted in chromatin remodeling that reduced promoter activity. Mutant forms of the musculo-aponeurotic fibrosarcoma recognition element did not bind NRF2. Activation of NRF2 with quercetin or by oxidative stress reduced expression of ITPR3 and calcium signaling in NHC cells; quercetin also reduced secretion by bile duct units isolated from rats. Knockdown of NRF2 with small interfering RNAs restored expression and function of ITPR3 in NHC cells incubated with quercetin. Bile ducts from rats with cholestasis and patients with cholangiopathic disorders expressed higher levels of NRF2 and lower levels of ITPR3 than ducts from control rats or patients with other liver disorders. CONCLUSIONS The transcription factor NRF2 binds to the promoter of ITPR3 to inhibit its expression in cholangiocytes, leading to reduced calcium signaling and bile duct secretion. This could be a mechanism by which oxidative stress inhibits these processes and contributes to cholangiopathies.
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Affiliation(s)
- Jittima Weerachayaphorn
- Liver Center, Yale University School of Medicine, New Haven, Connecticut, USA,Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Maria Jimena Amaya
- Liver Center, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Carlo Spirli
- Liver Center, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Piyachat Chansela
- Department of Anatomy, Phramongkutklao College of Medicine, Bangkok, Thailand
| | - Kisha A. Mitchell
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | | | - Michael H. Nathanson
- Liver Center, Yale University School of Medicine, New Haven, Connecticut, USA,Corresponding Author: Michael H. Nathanson MD., PhD., Department of Medicine, Section of Digestive Diseases, Yale University School of Medicine, 333 Cedar Street, TAC S241D, New Haven, CT, 06519 USA, Tel: (203)-785-7312, Fax: (203)-785-7273,
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Wu Q, Deng S, Li L, Sun L, Yang X, Liu X, Liu L, Qian Z, Wei Y, Gong C. Biodegradable polymeric micelle-encapsulated quercetin suppresses tumor growth and metastasis in both transgenic zebrafish and mouse models. NANOSCALE 2013; 5:12480-12493. [PMID: 24165931 DOI: 10.1039/c3nr04651f] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Quercetin (Que) loaded polymeric micelles were prepared to obtain an aqueous formulation of Que with enhanced anti-tumor and anti-metastasis activities. A simple solid dispersion method was used, and the obtained Que micelles had a small particle size (about 31 nm), high drug loading, and high encapsulation efficiency. Que micelles showed improved cellular uptake, an enhanced apoptosis induction effect, and stronger inhibitory effects on proliferation, migration, and invasion of 4T1 cells than free Que. The enhanced in vitro antiangiogenesis effects of Que micelles were proved by the results that Que micelles significantly suppressed proliferation, migration, invasion, and tube formation of human umbilical vein endothelial cells (HUVECs). Subsequently, transgenic zebrafish models were employed to investigate anti-tumor and anti-metastasis effects of Que micelles, in which stronger inhibitory effects of Que micelles were observed on embryonic angiogenesis, tumor-induced angiogenesis, tumor growth, and tumor metastasis. Furthermore, in a subcutaneous 4T1 tumor model, Que micelles were more effective in suppressing tumor growth and spontaneous pulmonary metastasis, and prolonging the survival of tumor-bearing mice. Besides, immunohistochemical and immunofluorescent assays suggested that tumors in the Que micelle-treated group showed more apoptosis, fewer microvessels, and fewer proliferation-positive cells. In conclusion, Que micelles, which are synthesized as an aqueous formulation of Que, possess enhanced anti-tumor and anti-metastasis activity, which can serve as potential candidates for cancer therapy.
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Affiliation(s)
- Qinjie Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China.
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Li J, Sun H, Jin L, Cao W, Zhang J, Guo CY, Ding K, Luo C, Ye WC, Jiang RW. Alleviation of podophyllotoxin toxicity using coexisting flavonoids from Dysosma versipellis. PLoS One 2013; 8:e72099. [PMID: 23991049 PMCID: PMC3749096 DOI: 10.1371/journal.pone.0072099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 07/08/2013] [Indexed: 12/18/2022] Open
Abstract
Podophyllotoxin (POD) is a lignan-type toxin existing in many herbs used in folk medicine. Until now, no effective strategy is available for the management of POD intoxication. This study aims to determine the protective effects of flavonoids (quercetin and kaempferol) on POD-induced toxicity. In Vero cells, both flavonoids protected POD-induced cytotoxicity by recovering alleviating G2/M arrest, decreasing ROS generation and changes of membrane potential, and recovering microtubule structure. In Swiss mice, the group given both POD and flavonoids group had significantly lower mortality rate and showed less damages in the liver and kidney than the group given POD alone. As compared to the POD group, the POD plus flavonoids group exhibited decreases in plasma transaminases, alkaline phosphatase, lactate dehydrogenase, plasma urea, creatinine and malondialdehyde levels, and increases in superoxide dismutase and glutathione levels. Histological examination of the liver and kidney showed less pathological changes in the treatment of POD plus flavonoids group. The protective mechanisms were due to the antioxidant activity of flavonoids against the oxidative stress induced by POD and the competitive binding of flavonoids against POD for the same colchicines-binding sites. The latter binding was confirmed by the tubulin assembly assay in combination with molecular docking analyses. In conclusion, this study for the first time demonstrated that the coexisting flavonoids have great protective effects against the POD toxicity, and results of this study highlighted the great potential of searching for effective antidotes against toxins based on the pharmacological clues.
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Affiliation(s)
- Juan Li
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
- Key Laboratory of Traditional Chinese Medicine Resource and Compound Prescription, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Hua Sun
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
| | - Lu Jin
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
- State Key Laboratory of New Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Wei Cao
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
| | - Jin Zhang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Chong-Yi Guo
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
| | - Ke Ding
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Cheng Luo
- State Key Laboratory of New Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
| | - Ren-Wang Jiang
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, China
- * E-mail:
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Role of antioxidants in cancer therapy. Nutrition 2013; 29:15-21. [DOI: 10.1016/j.nut.2012.02.014] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 02/28/2012] [Accepted: 02/28/2012] [Indexed: 10/28/2022]
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Samuel T, Fadlalla K, Mosley L, Katkoori V, Turner T, Manne U. Dual-mode interaction between quercetin and DNA-damaging drugs in cancer cells. Anticancer Res 2012; 32:61-71. [PMID: 22213289 PMCID: PMC3525707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND DNA-damaging drugs constitute standard chemotherapy regimen for advanced colorectal cancer. Here, the interactions between quercetin and 5-fluorouracil (5-FU), etoposide, and camptothecin were examined in cancer cells. MATERIALS AND METHODS HCT116 colorectal or PPC1 prostate cancer cells were treated with quercetin and the drugs. Clonogenicity assays, cell cycle profiles, and expressions of p53, p21, BAX, survivin and cyclin B1 proteins were used to examine the effects of the treatments. RESULTS Quercetin synergistically inhibited the clonogenicity of the wild-type cells, but inhibited the cell cycle effects of all the drugs tested. In p53-null cells, the combination of low dose 5-FU with up to 6 μM quercetin promoted clonogenic survival. Treatment of p53-wild-type cells with 50 μM quercetin reduced drug-induced up-regulation of p53, p21 and BAX. The combination of quercetin and the drugs also reduced the levels of cyclin B1 and survivin proteins. CONCLUSION While high doses of quercetin synergize with DNA-damaging agents, the effect of drug combination with quercetin is influenced by the effective doses and the p53 status of the cells.
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Affiliation(s)
- Temesgen Samuel
- Department of Pathobiology, College of Veterinary Medicine, Nursing and Allied Health, Tuskegee University, Tuskegee, AL 36088, USA.
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