1
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Qaed E, Al-Hamyari B, Al-Maamari A, Qaid A, Alademy H, Almoiliqy M, Munyemana JC, Al-Nusaif M, Alafifi J, Alyafeai E, Safi M, Geng Z, Tang Z, Ma X. Fisetin's Promising Antitumor Effects: Uncovering Mechanisms and Targeting for Future Therapies. Glob Med Genet 2023; 10:205-220. [PMID: 37565061 PMCID: PMC10412067 DOI: 10.1055/s-0043-1772219] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023] Open
Abstract
Background Cancer remains a critical global health challenge and a leading cause of mortality. Flavonoids found in fruits and vegetables have gained attention for their potential anti-cancer properties. Fisetin, abundantly present in strawberries, apples, onions, and other plant sources, has emerged as a promising candidate for cancer prevention. Epidemiological studies linking a diet rich in these foods to lower cancer risk have sparked extensive research on fisetin's efficacy. Objective This review aims to comprehensively explore the molecular mechanisms of fisetin's anticancer properties and investigate its potential synergistic effects with other anticancer drugs. Furthermore, the review examines the therapeutic and preventive effects of fisetin against various cancers. Methods A systematic analysis of the available scientific literature was conducted, including research articles, clinical trials, and review papers related to fisetin's anticancer properties. Reputable databases were searched, and selected studies were critically evaluated to extract essential information on fisetin's mechanisms of action and its interactions with other anticancer drugs. Results Preclinical trials have demonstrated that fisetin inhibits cancer cell growth through mechanisms such as cell cycle alteration, induction of apoptosis, and activation of the autophagy signaling pathway. Additionally, fisetin reduces reactive oxygen species levels, contributing to its overall anticancer potential. Investigation of its synergistic effects with other anticancer drugs suggests potential for combination therapies. Conclusion Fisetin, a bioactive flavonoid abundant in fruits and vegetables, exhibits promising anticancer properties through multiple mechanisms of action. Preclinical trials provide a foundation for further exploration in human clinical trials. Understanding fisetin's molecular mechanisms is vital for developing novel, safe, and effective cancer prevention and treatment strategies. The potential synergy with other anticancer drugs opens new avenues for combination therapies, enhancing cancer management approaches and global health outcomes.
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Affiliation(s)
- Eskandar Qaed
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, People's Republic of China
| | - Bandar Al-Hamyari
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, People's Republic of China
| | - Ahmed Al-Maamari
- The Key Laboratory of Neural and Vascular Biology, The Key Laboratory of New Drug Pharmacology and Toxicology, Department of Pharmacology, Ministry of Education, Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Abdullah Qaid
- N.I. Pirogov Russian National Research Medical University, Russia
| | - Haneen Alademy
- Taiz University Faculty of Medicine and Health Science, Yemen
| | - Marwan Almoiliqy
- Department of Pharmacy, Faculty of Medicine and Health Sciences, University of Science and Technology, Aden, Yemen
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States
| | - Jean Claude Munyemana
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, People's Republic of China
| | - Murad Al-Nusaif
- Department of Neurology and Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian, People's Republic of China
| | - Jameel Alafifi
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, People's Republic of China
| | - Eman Alyafeai
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Mohammed Safi
- Department of Pharmacy, Dalian Medical University, Dalian, People's Republic of China
| | - Zhaohong Geng
- Department of Cardiology, 2nd Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China
| | - Zeyao Tang
- Department of Pharmacy, Dalian Medical University, Dalian, People's Republic of China
| | - Xiaodong Ma
- Department of Pharmacy, Dalian Medical University, Dalian, People's Republic of China
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2
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Liu F, Cao X, Zhang T, Xing L, Sun Z, Zeng W, Xin H, Xue W. Synthesis and Biological Activity of Myricetin Derivatives Containing Pyrazole Piperazine Amide. Int J Mol Sci 2023; 24:10442. [PMID: 37445627 DOI: 10.3390/ijms241310442] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
In this paper, a series of derivatives were synthesized by introducing the pharmacophore pyrazole ring and piperazine ring into the structure of the natural product myricetin through an amide bond. The structures were determined using carbon spectrum and hydrogen spectrum high-resolution mass spectrometry. Biological activities of those compounds against bacteria, including Xac (Xanthomonas axonopodis pv. Citri), Psa (Pseudomonas syringae pv. Actinidiae) and Xoo (Xanthomonas oryzae pv. Oryzae) were tested. Notably, D6 exhibited significant bioactivity against Xoo with an EC50 value of 18.8 μg/mL, which was higher than the control drugs thiadiazole-copper (EC50 = 52.9 μg/mL) and bismerthiazol (EC50 = 69.1 μg/mL). Furthermore, the target compounds were assessed for their antifungal activity against ten plant pathogenic fungi. Among them, D1 displayed excellent inhibitory activity against Phomopsis sp. with an EC50 value of 16.9 μg/mL, outperforming the control agents azoxystrobin (EC50 = 50.7 μg/mL) and fluopyram (EC50 = 71.8 μg/mL). In vitro tests demonstrated that D1 possessed curative (60.6%) and protective (74.9%) effects on postharvest kiwifruit. To investigate the active mechanism of D1, its impact on SDH activity was evaluated based on its structural features and further confirmed through molecular docking. Subsequently, the malondialdehyde content of D1-treated fungi was measured, revealing that D1 could increase malondialdehyde levels, thereby causing damage to the cell membrane. Additionally, the EC50 value of D16 on P. capsici was 11.3 μg/mL, which was superior to the control drug azoxystrobin (EC50 = 35.1 μg/mL), and the scanning electron microscopy results indicated that the surface of drug-treated mycelium was ruffled, and growth was significantly affected.
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Affiliation(s)
- Fang Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiao Cao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Tao Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li Xing
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhiling Sun
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wei Zeng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hui Xin
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wei Xue
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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3
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Zughaibi TA, Suhail M, Tarique M, Tabrez S. Targeting PI3K/Akt/mTOR Pathway by Different Flavonoids: A Cancer Chemopreventive Approach. Int J Mol Sci 2021; 22:ijms222212455. [PMID: 34830339 PMCID: PMC8621356 DOI: 10.3390/ijms222212455] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/02/2021] [Accepted: 11/13/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer is, globally, one of the main causes of death. Even though various therapies are available, they are still painful because of their adverse side effects. Available treatments frequently fail due to unpromising responses, resistance to classical anticancer drugs, radiation therapy, chemotherapy, and low accessibility to tumor tissues. Developing novel strategies to minimize adverse side effects, improve chemotherapy sensitivity, and control cancer progression is needed. Many studies have suggested small dietary molecules as complementary treatments for cancer patients. Different components of herbal/edible plants, known as flavonoids, have recently garnered attention due to their broad biological properties (e.g., antioxidant, antiviral, antimicrobial, anti-inflammatory, anti-mutagenic, anticancer, hepatoprotective, and cardioprotective). These flavonoids have shown anticancer activity by affecting different signaling cascades. This article summarizes the key progress made in this area and discusses the role of flavonoids by specifically inhibiting the PI3K/Akt/mTOR pathway in various cancers.
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Affiliation(s)
- Torki A. Zughaibi
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohd Suhail
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (M.S.); (S.T.); Tel.: +966-533018148 (M.S.); +966-126401000 (ext. 25185) (S.T.); Fax: +966-126952076 (S.T.)
| | - Mohammad Tarique
- Department of Child Health, School of Medicine, University of Missouri, Columbia, MO 65201, USA;
| | - Shams Tabrez
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (M.S.); (S.T.); Tel.: +966-533018148 (M.S.); +966-126401000 (ext. 25185) (S.T.); Fax: +966-126952076 (S.T.)
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Misra SK, Pathak K. Naturally occurring heterocyclic anticancer compounds. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2021-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Naturally occurring heterocyclic scaffolds are key ingredients for the development of various therapeutics employed for biomedical applications. Heterocyclic pharmacophores are widely disseminated and have been befallen in almost all categories of drugs for the alleviation of myriad ailments including diabetes, neurodegenerative, psychiatric, microbial infections, disastrous cancers etc. Countless fused heterocyclic anticancerous templates are reported to display antimetabolite, antioxidant, antiproliferative, cytostatic etc. pharmacological actions via targeting different signaling pathways (cell cycle, PI-3kinase/Akt, p53, caspase extrinsic pathway etc.), overexpressive receptors (EGRF, HER2, EGF, VEGF etc.) and physiological enzymes (topoisomerase I and II, cyclin dependent kinase etc.). A compiled description on various natural sources (plants, microbes, marine) containing anticancer agents comprising heterocyclic ring specified with presence of nitrogen (vincristine, vinblastine, indole-3-carbinol, meridianins, piperine, lamellarins etc.), oxygen (paclitaxel, halichondrin B, quercetin, myricetin, kaempferol etc.) and sulphur atoms (brugine, fucoidan, carrageenan etc.) are displayed here along with their molecular level cytotoxic action and therapeutic applications.
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Affiliation(s)
- Shashi Kiran Misra
- University Institute of Pharmacy, Chhatrapati Shahu Ji Maharaj University , Kanpur , 208026 , India
| | - Kamla Pathak
- Faculty of Pharmacy, Uttar Pradesh University of Medical Sciences , Saifai , Etawah , 206130 , Uttar Pradesh , India
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Topoisomerase poisoning by the flavonoid nevadensin triggers DNA damage and apoptosis in human colon carcinoma HT29 cells. Arch Toxicol 2021; 95:3787-3802. [PMID: 34635930 PMCID: PMC8536574 DOI: 10.1007/s00204-021-03162-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022]
Abstract
Nevadensin, an abundant polyphenol of basil, is reported to reduce alkenylbenzene DNA adduct formation. Furthermore, it has a wide spectrum of further pharmacological properties. The presented study focuses the impact of nevadensin on topoisomerases (TOPO) in vitro. Considering the DNA-intercalating properties of flavonoids, first, minor groove binding properties (IC50 = 31.63 µM), as well as DNA intercalation (IC50 = 296.91 µM) of nevadensin, was found. To determine potential in vitro effects on TOPO I and TOPO IIα, the relaxation and decatenation assay was performed in a concentration range of 1–500 µM nevadensin. A partial inhibition was detected for TOPO I at concentrations ≥ 100 µM, whereas TOPO IIα activity is only inhibited at concentrations ≥ 250 µM. To clarify the mode of action, the isolating in vivo complex of enzyme assay was carried out using human colon carcinoma HT29 cells. After 1 h of incubation, the amount of TOPO I linked to DNA was significantly increased by nevadensin (500 µM), why nevadensin was characterized as TOPO I poison. However, no effects on TOPO IIα were detected in the cellular test system. As a subsequent cellular response to TOPO I poisoning, a highly significant increase of DNA damage after 2 h and a decrease of cell viability after 48 h at the same concentration range were found. Furthermore, after 24 h of incubation a G2/M arrest was observed at concentrations ≥ 100 µM by flow cytometry. The analysis of cell death revealed that nevadensin induces the intrinsic apoptotic pathway via activation of caspase-9 and caspase-3. The results suggest that cell cycle disruption and apoptotic events play key roles in the cellular response to TOPO I poisoning caused by nevadensin in HT29 cells.
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6
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Zhang Q, Zhao Y, Zhang M, Zhang Y, Ji H, Shen L. Recent advances in research on vine tea, a potential and functional herbal tea with dihydromyricetin and myricetin as major bioactive compounds. J Pharm Anal 2021; 11:555-563. [PMID: 34765268 PMCID: PMC8572699 DOI: 10.1016/j.jpha.2020.10.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
Vine tea has been used as an herbal tea by several ethnic minorities for hundreds of years in China. Flavonoids, a kind of indispensable component in a variety of nutraceutical, pharmaceutical and cosmetic applications, are identified to be the major metabolites and bioactive ingredients in vine tea. Interestingly, vine tea exhibits a wide range of significant bioactivities including anti-oxidant, anti-inflammatory, anti-tumor, antidiabetic, neuroprotective and other activities, but no toxicity. These bioactivities, to some extent, enrich the understanding about the role of vine tea in disease prevention and therapy. The health benefits of vine tea, particularly dihydromyricetin and myricetin, are widely investigated. However, there is currently no comprehensive review available on vine tea. Therefore, this report summarizes the most recent studies investigating bioactive constituents, pharmacological effects and possible mechanisms of vine tea, which will provide a better understanding about the health benefits and preclinical assessment of novel application of vine tea.
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Affiliation(s)
- Qili Zhang
- College of Life Sciences, Shandong University of Technology, Zibo, Shandong 255000, China
| | - Yanfang Zhao
- College of Life Sciences, Shandong University of Technology, Zibo, Shandong 255000, China
| | - Meiyan Zhang
- Department of Pharmacy, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Yalu Zhang
- Department of Pharmacy, The Affiliated Hospital of Jining Medical College, Jining, Shandong 272100, China
| | - Hongfang Ji
- College of Life Sciences, Shandong University of Technology, Zibo, Shandong 255000, China
| | - Liang Shen
- College of Life Sciences, Shandong University of Technology, Zibo, Shandong 255000, China
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Müller L, Weever F, Hübner F, Humpf HU, Esselen M. Characterization of Oligomeric Proanthocyanidin-Enriched Fractions from Aronia melanocarpa (Michx.) Elliott via High-Resolution Mass Spectrometry and Investigations on Their Inhibitory Potential on Human Topoisomerases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11053-11064. [PMID: 34495660 DOI: 10.1021/acs.jafc.1c04761] [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: 06/13/2023]
Abstract
Aronia melanocarpa (MICHX.) ELLIOTT, which belongs to the Rosaceae family, has increasingly come into focus of research due to the high content of polyphenols. In addition to antioxidative properties, further health-promoting effects of these polyphenols are still of interest. Especially, the proanthocyanidins offer thereby huge opportunities due to their high structural heterogeneity. Therefore, the present study focuses on the topoisomerase inhibiting effects of oligomeric proanthocyanidins (PACs), which are potentially depended on their degree of polymerization. The investigated PACs isolated from Aronia berries were characterized by chromatographic techniques and liquid chromatography-high-resolution mass spectrometry. Four PAC enriched fractions were obtained from Aronia pomace containing 47 PACs with a degree of polymerization from three to six. Due to the low yield of hexamers, the potential inhibiting effects against human topoisomerase were investigated for the trimer to pentamer fractions. The relaxation and decatenation assays were performed to examine the inhibiting effect on topoisomerases under cell-free conditions. Moreover, rapid isolation of topoisomerase cleavage complexes in human colon carcinoma HT29 cells was performed to evaluate the effect on topoisomerases in a cell-based system. The fractions demonstrated inhibitory potential on topoisomerases I and II. In sum, an increasing effect strength depending on the degree of polymerization was shown.
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Affiliation(s)
- Lena Müller
- Institute of Food Chemistry, University of Muenster, Corrensstraße 45, Münster 48149, Germany
| | - Fabian Weever
- Institute of Food Chemistry, University of Muenster, Corrensstraße 45, Münster 48149, Germany
| | - Florian Hübner
- Institute of Food Chemistry, University of Muenster, Corrensstraße 45, Münster 48149, Germany
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, University of Muenster, Corrensstraße 45, Münster 48149, Germany
| | - Melanie Esselen
- Institute of Food Chemistry, University of Muenster, Corrensstraße 45, Münster 48149, Germany
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8
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New Advances in the Research of Resistance to Neoadjuvant Chemotherapy in Breast Cancer. Int J Mol Sci 2021; 22:ijms22179644. [PMID: 34502549 PMCID: PMC8431789 DOI: 10.3390/ijms22179644] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 12/24/2022] Open
Abstract
Breast cancer has an extremely high incidence in women, and its morbidity and mortality rank first among female tumors. With the increasing development of medicine today, the clinical application of neoadjuvant chemotherapy has brought new hope to the treatment of breast cancer. Although the efficacy of neoadjuvant chemotherapy has been confirmed, drug resistance is one of the main reasons for its treatment failure, contributing to the difficulty in the treatment of breast cancer. This article focuses on multiple mechanisms of action and expounds a series of recent research advances that mediate drug resistance in breast cancer cells. Drug metabolizing enzymes can mediate a catalytic reaction to inactivate chemotherapeutic drugs and develop drug resistance. The drug efflux system can reduce the drug concentration in breast cancer cells. The combination of glutathione detoxification system and platinum drugs can cause breast cancer cells to be insensitive to drugs. Changes in drug targets have led to poorer efficacy of HER2 receptor inhibitors. Moreover, autophagy, epithelial–mesenchymal transition, and tumor microenvironment can all contribute to the development of resistance in breast cancer cells. Based on the relevant research on the existing drug resistance mechanism, the current treatment plan for reversing the resistance of breast cancer to neoadjuvant chemotherapy is explored, and the potential drug targets are analyzed, aiming to provide a new idea and strategy to reverse the resistance of neoadjuvant chemotherapy drugs in breast cancer.
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Ruthenium(II) and Platinum(II) Complexes with Biologically Active Aminoflavone Ligands Exhibit In Vitro Anticancer Activity. Int J Mol Sci 2021; 22:ijms22147568. [PMID: 34299199 PMCID: PMC8306828 DOI: 10.3390/ijms22147568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 11/17/2022] Open
Abstract
Continuing our studies on the mechanisms underlying the cytotoxicity of potential drugs, we have described several aspects of the in vitro anticancer activity of ruthenium(II) and platinum(II) complexes with bioactive, synthetic aminoflavone ligands. We examined the mechanism of proapoptotic activity of cis-dichlorobis(3-imino-2-methoxyflavanone)ruthenium(II), cis-dichlorobis(3-imino-2-ethoxyflavanone)ruthenium(II), and trans-dichlorobis(3-aminoflavone)platinum(II). Cisplatin was used as a reference compound. The cytotoxicity was investigated by MTT assay. The mechanism of proapoptotic activity of the tested compounds was investigated by evaluation of caspase-8 activity, cytometric analysis of annexin-V positive cells, and mitochondrial potential loss measurement. The results showed that ruthenium compounds break partially or completely the cisplatin resistance by activating the caspase 8-dependent apoptosis pathway and loss of mitochondrial membrane potential. Platinum compounds also have a cytostatic effect, but their action requires more exposure time. Potential mechanisms underlying drug resistance in the two pairs of cancer cell lines were investigated: total glutathione content, P-glycoprotein activity, and differences in the activity of DNA repair induced by nucleotide excision. Results showed that cisplatin-resistant cells have elevated glutathione levels relative to sensitive cells. Moreover, they indicated the mechanisms enabling cells to avoid apoptosis caused by DNA damage. Pg-P activity has no effect on the development of cisplatin resistance in the cell lines described.
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Abstract
![]()
Sirtuin 6 (SIRT6)
is an NAD+-dependent protein deacylase
and mono-ADP-ribosyltransferase of the sirtuin family with a wide
substrate specificity. In vitro and in vivo studies have indicated that SIRT6 overexpression or activation has
beneficial effects for cellular processes such as DNA repair, metabolic
regulation, and aging. On the other hand, SIRT6 has contrasting roles
in cancer, acting either as a tumor suppressor or promoter in a context-specific
manner. Given its central role in cellular homeostasis, SIRT6 has
emerged as a promising target for the development of small-molecule
activators and inhibitors possessing a therapeutic potential in diseases
ranging from cancer to age-related disorders. Moreover, specific modulators
allow the molecular details of SIRT6 activity to be scrutinized and
further validate the enzyme as a pharmacological target. In this Perspective,
we summarize the current knowledge about SIRT6 pharmacology and medicinal
chemistry and describe the features of the activators and inhibitors
identified so far.
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Affiliation(s)
- Francesco Fiorentino
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Antonello Mai
- Department of Drug Chemistry & Technologies, Sapienza University of Rome, P.le A Moro 5, 00185 Rome, Italy
| | - Dante Rotili
- Department of Drug Chemistry & Technologies, Sapienza University of Rome, P.le A Moro 5, 00185 Rome, Italy
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Sarkate AP, Dofe VS, Tiwari SV, Lokwani DK, Karnik KS, Kamble DD, Ansari MHSH, Dodamani S, Jalalpure SS, Sangshetti JN, Azad R, Burra PVLS, Bhandari SV. One pot synthesis, in silico study and evaluation of some novel flavonoids as potent topoisomerase II inhibitors. Bioorg Med Chem Lett 2021; 40:127916. [PMID: 33689875 DOI: 10.1016/j.bmcl.2021.127916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 11/19/2022]
Abstract
A library of novel flavonoid derivatives with diverse heterocyclic groups was designed and efficiently synthesized. Structures of the newly synthesized compounds 4a-i and 8a-l have been characterized by 1H NMR, 13C NMR, MS and elemental analysis. Anticancer activities were evaluated against MCF-7, A549, HepG2 and MCF-10A by MTT based assay. Compared with the positive control Adriamycin, compounds 4a, 4b, 4c, 4d, 8d, 8e and 8j were found to be most active anti-proliferative compounds against human cancer cell line. We found that compounds 4a and 4c exhibited inhibition of enzyme topoisomerase II with IC50 values 10.28 and 12.38 μM, respectively. In silico docking study of synthesized compounds showed that compounds 4a and 4c have good binding affinity toward topoisomerase IIα enzyme and have placed in between DNA base pair at active site of enzyme. In silico ADME prediction results that flavonoid coumarin analogues 4a-i could be exploited as an oral drug candidate.
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Affiliation(s)
- Aniket P Sarkate
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, Maharashtra, India.
| | - Vidya S Dofe
- Department of Chemistry, Deogiri College, Aurangabad 431 005, Maharashtra, India
| | - Shailee V Tiwari
- Department of Pharmaceutical Chemistry, Durgamata Institute of Pharmacy, Dharmapuri, Parbhani 431401, Maharashtra, India
| | - Deepak K Lokwani
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur 425405, Maharashtra, India.
| | - Kshipra S Karnik
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, Maharashtra, India
| | - Darshana D Kamble
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, Maharashtra, India
| | - Mujahed H S H Ansari
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, Maharashtra, India
| | - Suneel Dodamani
- Dr. Prabhakar Kore Basic Science Research Center, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Sunil S Jalalpure
- Dr. Prabhakar Kore Basic Science Research Center, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India; KLE College of Pharmacy, KLE Academy of Higher Education and Research, Nehru Nagar, Belagavi 590010, Karnataka, India
| | | | - Rajaram Azad
- Department of Animal Biology, University of Hyderabad, Hyderabad 500046, India
| | - Prasad V L S Burra
- Department of Biotechnology, KLEF University, Vaddeswaram 522502, AP, India
| | - Shashikant V Bhandari
- Department of Pharmaceutical Chemistry, AISSMS College of Pharmacy, Near RTO, Kennedy Road, Pune 411001, Maharashtra, India
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Şöhretoğlu D, Barut B, Sari S, Özel A, Arroo R. In vitro and in silico assessment of DNA interaction, topoisomerase I and II inhibition properties of chrysosplenetin. Int J Biol Macromol 2020; 163:1053-1059. [PMID: 32673727 DOI: 10.1016/j.ijbiomac.2020.07.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
Chrysosplenetin is a methoxyflavone with reported anti-cancer effect. We tested its cytotoxic effect on the MCF-7 breast cancer cell line, and determined its effect on DNA intercalation and on the activity of topoisomerases I and II. The compound inhibited proliferation MCF-7 with an IC50 value of 0.29 μM. Chrysosplenetin did not initiate plasmid DNA cleavage but, in a concentration-dependent manner, protected plasmid DNA against damage induced by Fenton reagents. Furthermore, it possessed dual Topoisomerase I and II inhibitory properties. Especially, it inhibited topoisomerase II by 83-96% between the range 12.5-100 μM. In the light of these experimental findings, molecular docking studies were performed to understand binding mode, interactions and affinity of chrysosplenetin with DNA, and with topoisomerases I and II. These studies showed that of 4-chromone core and the hydroxyl and methoxy groups important for both intercalation with DNA and topoisomerase I and II inhibition.
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Affiliation(s)
- Didem Şöhretoğlu
- Hacettepe University, Faculty of Pharmacy, Department of Pharmacognosy, Sıhhiye, Ankara, TR-06100 Ankara, Turkey.
| | - Burak Barut
- Karadeniz Technical University, Faculty of Pharmacy, Department of Biochemistry, Trabzon, Turkey
| | - Suat Sari
- Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Sıhhiye, Ankara, TR-06100 Ankara, Turkey
| | - Arzu Özel
- Karadeniz Technical University, Faculty of Pharmacy, Department of Biochemistry, Trabzon, Turkey; Karadeniz Technical University, Drug and Pharmaceutical Technology Application and Research Center, Trabzon, Turkey
| | - Randolph Arroo
- De Montfort University, Leicester School of Pharmacy, The Gateway, Leicester LE1 9BH, United Kingdom
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13
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Shelke RN, Pansare DN, Sarkate AP, Narula IK, Lokwani DK, Tiwari SV, Azad R, Thopate SR. Synthesis and evaluation of novel sulfonamide analogues of 6/7-aminoflavones as anticancer agents via topoisomerase II inhibition. Bioorg Med Chem Lett 2020; 30:127246. [PMID: 32527548 DOI: 10.1016/j.bmcl.2020.127246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/27/2020] [Accepted: 05/02/2020] [Indexed: 01/30/2023]
Abstract
A series of new sulfonamide analogues of 6/7-aminoflavones were synthesized by using molecular hybridization approach. These new sulfonamide analogues were screened for antiproliferative activity against human hepatocellular carcinoma (HepG-2), human lung cancer cell line (A-549), human colorectal adenocarcinoma (Caco-2) cancer cell lines. Compounds 5p, 5q, 5t, 5v, 5w and 5x exhibited good anticancer activity against selected cancer cell lines. These compounds were further evaluated to predict their ability to inhibit topoisomerase-II enzyme. Compound 5x has shown potent antiproliferative activity (IC50 value 0.98 µM) as compared to standard drug Adriamycin (IC50 = 0.94 µM) indicating that these compounds exhibits anticancer activity via inhibition of topoisomerase-II enzyme. Docking results also have supported above observations by indicating that compounds are held in the active pocket by combination of various hydrogen and hydrophobic interactions with Top II-DNA-etoposide enzyme.
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Affiliation(s)
- Rohini N Shelke
- Department of Chemistry, Prof John Barnabas Post Graduate School of Biological Studies, Ahmednagar College, Ahmednagar, Ahmednagar 414001, India
| | - Dattatraya N Pansare
- Department of Chemistry, Deogiri College, Station Road, Aurangabad 431 005, MS, India
| | - Aniket P Sarkate
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, MS, India
| | - Ishudeep K Narula
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, MS, India
| | - Deepak K Lokwani
- Department of Pharmaceutical Chemistry, R C Patel Institute of Pharmaceutical Education & Research, Shirpur 425405, MS, India
| | - Shailee V Tiwari
- Department of Pharmaceutical Chemistry, Durgamata Institute of Pharmacy, Dharmapuri, Parbhani 431401, MS, India
| | - Rajaram Azad
- Department of Animal Biology, University of Hyderabad, Hyderabad, 500046, India
| | - Shankar R Thopate
- Department of Chemistry, Prof John Barnabas Post Graduate School of Biological Studies, Ahmednagar College, Ahmednagar, Ahmednagar 414001, India.
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14
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Perdomo RT, Defende CP, da Silva Mirowski P, Freire TV, Weber SS, Garcez WS, da Rosa Guterres Z, de Fátima Cepa Matos M, Garcez FR. Myricitrin from Combretum lanceolatum Exhibits Inhibitory Effect on DNA-Topoisomerase Type II α and Protective Effect Against In Vivo Doxorubicin-Induced Mutagenicity. J Med Food 2020; 24:273-281. [PMID: 32543997 DOI: 10.1089/jmf.2020.0033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Flavonoids-compounds abundant in balanced daily diets-have been extensively investigated for biological activity. The pronounced antiproliferative effects of flavonoids have prompted studies to elucidate their mode of action against tumor cells. The anticancer properties of myricetin, a 3',4',5'-tri-hydroxylated flavonol, have been confirmed for a number of neoplasms, but myricitrin, its 3-O-rhamnoside derivative found in fruits and other parts of edible plants, has been scarcely investigated as a chemopreventive agent. This study evaluated the antiproliferative potential of myricitrin obtained from Combretum lanceolatum (Combretaceae) against MCF7 (breast), PC-3 (prostate), HT-29 (colon), 786-0 (kidney), and HL-60 (acute promyelocytic leukemia) cancer cell lines, using the sulforhodamine B and tetrazolium salt assays. Myricitrin proved most effective in inhibiting growth of HL-60 cells (GI50 = 53.4 μmol·L-1), yet showed weak antiproliferative activity against other cell lines. Possible cytotoxic mechanisms involving inhibition of topoisomerases I and IIα by myricitrin were also evaluated, revealing inhibitory activity only against topoisomerase IIα. The results suggested that topoisomerase IIα inhibition is the probable mechanism responsible for the antiproliferative activity of myricitrin. In vivo mutagenicity by myricitrin and its possible antimutagenic effect on doxorubicin-induced DNA damage were also investigated by performing the somatic mutation and recombination test (SMART) on Drosophila melanogaster. Myricitrin proved nonmutagenic to the offspring of standard (ST) and high-bioactivation (HB) crosses, while cotreatments with doxorubicin revealed the antimutagenic properties of myricitrin, even under conditions of high metabolic activation.
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Affiliation(s)
- Renata Trentin Perdomo
- Laboratory of Molecular Biology and Cell Culture, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Camila Pineze Defende
- Laboratory of Molecular Biology and Cell Culture, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Talita Vilalva Freire
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Simone Schneider Weber
- Laboratory of Molecular Biology and Cell Culture, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil.,Institute of Exact Sciences and Technology, Federal University of Amazonas, Itacoatiara, AM, Brazil
| | - Walmir Silva Garcez
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Zaira da Rosa Guterres
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Maria de Fátima Cepa Matos
- Laboratory of Molecular Biology and Cell Culture, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
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15
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Thorat NM, Sarkate AP, Lokwani DK, Tiwari SV, Azad R, Thopate SR. N-Benzylation of 6-aminoflavone by reductive amination and efficient access to some novel anticancer agents via topoisomerase II inhibition. Mol Divers 2020; 25:937-948. [PMID: 32249379 DOI: 10.1007/s11030-020-10079-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/23/2020] [Indexed: 01/07/2023]
Abstract
Series of novel N-benzyl derivatives of 6-aminoflavone (9a-n) were synthesized and evaluated for anticancer and topoisomerase II enzyme inhibition activity. All the synthesized compounds were screened for in vitro anticancer activity against human breast cancer cell line (MCF-7) and human lung cancer cell line (A-549). Among the synthesized compounds, 9f and 9g were found to be the most potent anticancer agents against human breast cancer cell line (MCF-7) with IC50 values of 9.35 µM and 9.58 µM, respectively. Compounds 9b, 9c and 9n exhibited promising anticancer activity against human lung cancer cell line (A-549) with 43.71%, 46.48% and 44.26% inhibition at the highest concentration of 10 µM, respectively. Compounds 9c, 9f and 9g have ability to inhibit the topoisomerase II enzyme. Compound 9f showed most potent topoisomerase II enzyme inhibition activity with IC50 value of 12.11 µM. Further, these compounds have a high potential to be developed as a promising topoisomerase II inhibitors.
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Affiliation(s)
- Nitin M Thorat
- Department of Chemistry, Prof. John Barnabas Post Graduate School for Biological Studies, Ahmednagar College, Ahmednagar, Station Road, Ahmednagar, Maharashtra, 414001, India.,Department of Chemistry, Maharaja Jivajirao Shinde Arts, Science, Commerce College, Shrigonda, Maharashtra, 413701, India
| | - Aniket P Sarkate
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Deepak K Lokwani
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India
| | - Shailee V Tiwari
- Department of Pharmaceutical Chemistry, Durgamata Institute of Pharmacy, Dharmapuri, Parbhani, Maharashtra, 431401, India
| | - Rajaram Azad
- Department of Animal Biology, University of Hyderabad, Hyderabad, 500046, India
| | - Shankar R Thopate
- Department of Chemistry, Prof. John Barnabas Post Graduate School for Biological Studies, Ahmednagar College, Ahmednagar, Station Road, Ahmednagar, Maharashtra, 414001, India. .,Department of Chemistry, Shri Sadguru Gangageer Maharaj Science, Gautam Arts and Sanjivani Commerce College, Kopargaon, Dist. Ahmednagar, Maharashtra, 423 601, India.
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16
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Xiang C, Wu X, Zhao Z, Feng X, Bai X, Liu X, Zhao J, Takeda S, Qing Y. Nonhomologous end joining and homologous recombination involved in luteolin-induced DNA damage in DT40 cells. Toxicol In Vitro 2020; 65:104825. [PMID: 32169435 DOI: 10.1016/j.tiv.2020.104825] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/08/2020] [Accepted: 03/08/2020] [Indexed: 02/05/2023]
Abstract
Luteolin (3',4',5,7-tetrahydroxyflavone), a naturally occurring flavonoid, has been shown to have anticancer activity in many types of cancer cell lines. The anticancer capacity of luteolin may be related to its ability to induce DNA double-strand breaks (DSBs). Here, we used DT40 cells to determine whether nonhomologous end joining (NHEJ) and homologous recombination (HR) are involved in the repair mechanism of luteolin-induced DNA damage. Cells defective in Ku70 (an enzyme associated with NHEJ) or Rad54 (an enzyme essential for HR) were hypersensitive and presented more apoptosis in response to luteolin. Moreover, the sensitivity and apoptosis of Ku70-/- and Rad54-/- cells were associated with increased DNA damage when the numbers of γ-H2AX foci and chromosomal aberrations (CAs) were compared with those from WT cells. Additionally, after treatment with luteolin, Ku70-/- cells presented more Top2 covalent cleavage complexes (Top2cc). These results indicated that luteolin induced DSBs in DT40 cells and demonstrated that both NHEJ and HR participated in the repair of luteolin-induced DSBs, which might be related to the inhibition of topoisomerases. These results imply that simultaneous inhibition of NHEJ and HR with luteolin treatment would provide a powerful protocol in cancer chemotherapy.
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Affiliation(s)
- Cuifang Xiang
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xiaohua Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zilu Zhao
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoyu Feng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xin Bai
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xin Liu
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Jingxia Zhao
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Shunichi Takeda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yong Qing
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China.
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17
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Garro HA, Pungitore CR. DNA Related Enzymes as Molecular Targets for Antiviral and Antitumoral Chemotherapy. A Natural Overview of the Current Perspectives. Curr Drug Targets 2020; 20:70-80. [PMID: 29697027 DOI: 10.2174/1389450119666180426103558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/17/2018] [Accepted: 04/19/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND The discovery of new chemotherapeutic agents still remains a continuous goal to achieve. DNA polymerases and topoisomerases act in nucleic acids metabolism modulating different processes like replication, mitosis, damage repair, DNA topology and transcription. It has been widely documented that Polymerases serve as molecular targets for antiviral and antitumoral chemotherapy. Furthermore, telomerase is a ribonucleoprotein with exacerbated activity in most of the tumor cell lines, becoming as an emergent target in Cancer treatment. METHODS We undertook an exhaustive search of bibliographic databases for peer-reviewed research literature related to the last decade. The characteristics of screened bibliography describe structure activity relationships and show the principal moieties involved. This work tries to summarize the investigation about natural and semi-synthetic products with natural origin with the faculty to inhibit key enzymes that play a crucial role in DNA metabolism. RESULTS Eighty-five data references were included in this review, showing natural products widely distributed throughout the plant kingdom and their bioactive properties such as tumor growing inhibitory effects, and anti-AIDS activity. CONCLUSION The findings of this review confirm the importance to find new drugs and biologically active natural products, and their potential medicinally useful benefits.
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Affiliation(s)
- Hugo A Garro
- Intequi-Conicet, Fac. Qca., Bioqca. y Fcia., Univ. Nac. de San Luis (U.N.S.L), Chacabuco y Pedernera, 5700 San Luis, Argentina
| | - Carlos R Pungitore
- Intequi-Conicet, Fac. Qca., Bioqca. y Fcia., Univ. Nac. de San Luis (U.N.S.L), Chacabuco y Pedernera, 5700 San Luis, Argentina
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18
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Crudo F, Varga E, Aichinger G, Galaverna G, Marko D, Dall'Asta C, Dellafiora L. Co-Occurrence and Combinatory Effects of Alternaria Mycotoxins and other Xenobiotics of Food Origin: Current Scenario and Future Perspectives. Toxins (Basel) 2019; 11:E640. [PMID: 31684145 PMCID: PMC6891783 DOI: 10.3390/toxins11110640] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/24/2019] [Accepted: 10/31/2019] [Indexed: 01/24/2023] Open
Abstract
Mycotoxins are low-molecular weight compounds produced by diverse genera of molds that may contaminate food and feed threatening the health of humans and animals. Recent findings underline the importance of studying the combined occurrence of multiple mycotoxins and the relevance of assessing the toxicity their simultaneous exposure may cause in living organisms. In this context, for the first time, this work has critically reviewed the most relevant data concerning the occurrence and toxicity of mycotoxins produced by Alternaria spp., which are among the most important emerging risks to be assessed in food safety, alone or in combination with other mycotoxins and bioactive food constituents. According to the literature covered, multiple Alternaria mycotoxins may often occur simultaneously in contaminated food, along with several other mycotoxins and food bioactives inherently present in the studied matrices. Although the toxicity of combinations naturally found in food has been rarely assessed experimentally, the data collected so far, clearly point out that chemical mixtures may differ in their toxicity compared to the effect of toxins tested individually. The data presented here may provide a solid foothold to better support the risk assessment of Alternaria mycotoxins highlighting the actual role of chemical mixtures on influencing their toxicity.
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Affiliation(s)
- Francesco Crudo
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Elisabeth Varga
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria.
| | - Georg Aichinger
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria.
| | - Gianni Galaverna
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Doris Marko
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria.
| | - Chiara Dall'Asta
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Luca Dellafiora
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
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19
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Anti-tumor effects and associated molecular mechanisms of myricetin. Biomed Pharmacother 2019; 120:109506. [PMID: 31586904 DOI: 10.1016/j.biopha.2019.109506] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022] Open
Abstract
Myricetin (3, 5, 7, 3', 4', 5'-hexahydroxyflavone) is a natural flavonol compound found in a large variety of plants, including berries, oranges, grapes, herbs, teas, and wine. In the last decade, a convergence of evidence has demonstrated that myricetin has good biological activity as an anti-tumor, anti-inflammatory, and anti-oxidation agent. In studies involving various types of cancer cells, myricetin has been shown to suppress cancer cell invasion and metastasis, to induce cell cycle arrest and apoptosis of cancer cells, and to inhibit their proliferation. These findings have raised interest in myricetin as a potential tumor inhibitor in human patients. In this review, evidence of myricetin's anti-tumor activity and its underlying molecular mechanisms published in the last decade are summarized.
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20
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Maroufi NF, Vahedian V, Mazrakhondi SAM, Kooti W, Khiavy HA, Bazzaz R, Ramezani F, Pirouzpanah SM, Ghorbani M, Akbarzadeh M, Hajipour H, Ghanbarzadeh S, Sabzichi M. Sensitization of MDA-MBA231 breast cancer cell to docetaxel by myricetin loaded into biocompatible lipid nanoparticles via sub-G1 cell cycle arrest mechanism. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:1-11. [PMID: 31372697 DOI: 10.1007/s00210-019-01692-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/05/2019] [Indexed: 12/20/2022]
Abstract
The harmful dose-dependent side effects of chemotherapy drugs have caused the discovery of novel perspective to evaluate chemotherapy protocols. In this study, the potential application of Compritol was investigated as a major scaffold into nanostructured lipid careers to highlight myricetin efficiency in treatment of breast cancer cells along with codelivery of docetaxel (DXT). Characterization of myricetin-loaded NLCs was carried out by measuring the particle size and zeta potential, using the scanning electron microscopy. MTT, DAPI staining, flow cytometric, and RT-PCR (real-time) assays were used to recognize novel formulation behavior on cell cytotoxicity as well as recognizing molecular mechanism of formulation concerning apoptosis phenomenon. Myricetin-loaded NLCs reduced the cell viability from 50 ± 2.3 to 40 ± 1.3% (p < 0.05). Percentage of apoptosis improved with combination treatment of myricetin-loaded NLCs and DXT in the MDA-MBA231 breast cancer cells. Expression of antiapoptotic genes (survivin, Cyclin B1, and Mcl1) indicated a significant reduction in factor along with increment in proapoptotic factor Bax and Bid mRNA rates. Overall, our results represented that the NLC delivery system could be a promising strategy to enhance the effect of anticancer agents such as DXT on breast cancer.
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Affiliation(s)
- Nazila Fathi Maroufi
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Vahedian
- Department of Medical Laboratory Sciences, Faculty of Medicine, Islamic Azad University (IAU), Sari, Iran
| | | | - Wesam Kooti
- Lung Diseases and Allergy Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Hosein Ajami Khiavy
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roya Bazzaz
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Ramezani
- Department of Molecular Medicine, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Marjan Ghorbani
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Akbarzadeh
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hajipour
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Ghanbarzadeh
- Cancer Gene Therapy Research Center, Zanjan University of Medical Science, Zanjan, Iran.
| | - Mehdi Sabzichi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
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21
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Liang X, Wu Q, Luan S, Yin Z, He C, Yin L, Zou Y, Yuan Z, Li L, Song X, He M, Lv C, Zhang W. A comprehensive review of topoisomerase inhibitors as anticancer agents in the past decade. Eur J Med Chem 2019; 171:129-168. [PMID: 30917303 DOI: 10.1016/j.ejmech.2019.03.034] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/14/2019] [Accepted: 03/14/2019] [Indexed: 01/28/2023]
Abstract
The topoisomerase enzymes play an important role in DNA metabolism, and searching for enzyme inhibitors is an important target in the search for new anticancer drugs. Discovery of new anticancer chemotherapeutical capable of inhibiting topoisomerase enzymes is highlighted in anticancer research. Therefore, biologists, organic chemists and medicinal chemists all around the world have been identifying, designing, synthesizing and evaluating a variety of novel bioactive molecules targeting topoisomerase. This review summarizes types of topoisomerase inhibitors in the past decade, and divides them into nine classes by structural characteristics, including N-heterocycles compounds, quinone derivatives, flavonoids derivatives, coumarin derivatives, lignan derivatives, polyphenol derivatives, diterpenes derivatives, fatty acids derivatives, and metal complexes. Then we discussed the application prospect and development of these anticancer compounds, as well as concluded parts of their structural-activity relationships. We believe this review would be invaluable in helping to further search potential topoisomerase inhibition as antitumor agent in clinical usage.
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Affiliation(s)
- Xiaoxia Liang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China.
| | - Qiang Wu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Shangxian Luan
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Zhongqiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Changliang He
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Lizi Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Yuanfeng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Zhixiang Yuan
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Lixia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Min He
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Cheng Lv
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Wei Zhang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
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22
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Kirsanov KI, Vlasova OA, Fetisov TI, Zenkov RG, Lesovaya EA, Belitsky GA, Gurova K, Yakubovskaya MG. Influence of DNA-binding compounds with cancer preventive activity on the mechanisms of gene expression regulation. ADVANCES IN MOLECULAR ONCOLOGY 2019. [DOI: 10.17650/2313-805x-2018-5-4-41-63] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- K. I. Kirsanov
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia; Peoples’ Friendship University of Russia
| | - O. A. Vlasova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
| | - T. I. Fetisov
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
| | - R. G. Zenkov
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
| | - E. A. Lesovaya
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia; I.P. Pavlov Ryazan State Medical University
| | - G. A. Belitsky
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
| | | | - M. G. Yakubovskaya
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
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23
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Gonçalves DR, Manthey JA, da Costa PI, Rodrigues MCM, Cesar TB. Analysis of Fluorescence Spectra of Citrus Polymethoxylated Flavones and Their Incorporation into Mammalian Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7531-7541. [PMID: 29984997 DOI: 10.1021/acs.jafc.8b02052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Citrus polymethoxylated flavones (PMFs) influence biochemical cascades in human diseases, yet little is known about how these compounds interact with cells and how these associations influence the actions of these compounds. An innate attribute of PMFs is their ultraviolet-light-induced fluorescence, and the fluorescence spectra of 14 PMFs and 7 PMF metabolites were measured in methanol. These spectra were shown to be strongly influenced by the compounds' hydroxy and methoxy substituents. For a subset of these compounds, the fluorescence spectra were measured when bound to human carcinoma Huh7.5 cells. Emission-wavelength maxima of PMF metabolites with free hydroxyl substituents exhibited 70-80 nm red shifts when bound to the Huh7.5 cells. Notable solvent effects of water were observed for nearly all these compounds, and these influences likely reflect the effects of localized microenvironments on the resonance structures of these compounds when bound to human cells.
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Affiliation(s)
- Danielle R Gonçalves
- Department of Food and Nutrition, Laboratory of Nutrition, Faculty of Pharmaceutical Sciences , São Paulo State University (UNESP) , Araraquara 01049-010 , Brazil
| | - John A Manthey
- U.S. Horticultural Research Laboratory, ARS , United States Department of Agriculture , 2001 South Rock Road , Fort Pierce , FL 34945 , United States
| | - Paulo I da Costa
- Clinical Analysis Department, School of Pharmaceutical Sciences , São Paulo State University (UNESP) , Araraquara 01049-010 , Brazil
| | - Marilia C M Rodrigues
- Department of Food and Nutrition, Laboratory of Nutrition, Faculty of Pharmaceutical Sciences , São Paulo State University (UNESP) , Araraquara 01049-010 , Brazil
| | - Thais B Cesar
- Department of Food and Nutrition, Laboratory of Nutrition, Faculty of Pharmaceutical Sciences , São Paulo State University (UNESP) , Araraquara 01049-010 , Brazil
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Visualization and Quantification of Topoisomerase-DNA Covalent Complexes Using the Trapped in Agarose Immunostaining (TARDIS) Assay. Methods Mol Biol 2018. [PMID: 29177750 DOI: 10.1007/978-1-4939-7459-7_21] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The TARDIS assay was originally developed as a means of detecting and quantifying melphalan and cisplatin DNA adducts at the single cell level, but it has since been adapted to quantify topoisomerase DNA complexes that result from the actions of topoisomerase poisons and this is currently the main use of the assay. The method employs sensitive immunofluorescent detection to quantify topoisomerase molecules covalently coupled to DNA in what are often referred to as cleavage complexes. Free topoisomerase molecules, and other cellular constituents are first removed using salt-detergent extraction of agarose-embedded, unfixed cells. Using these stringent extraction conditions, genomic DNA remains in place in the agarose as "nuclear ghosts," and any covalent attached molecules can be detected and quantified by immunofluorescence with a low background.
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25
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Darband SG, Kaviani M, Yousefi B, Sadighparvar S, Pakdel FG, Attari JA, Mohebbi I, Naderi S, Majidinia M. Quercetin: A functional dietary flavonoid with potential chemo-preventive properties in colorectal cancer. J Cell Physiol 2018; 233:6544-6560. [PMID: 29663361 DOI: 10.1002/jcp.26595] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 03/12/2018] [Indexed: 02/06/2023]
Abstract
Recently, an intense attention has been paid to the application of natural compounds as a novel therapeutic strategy for cancer treatment. Quercetin, a natural flavonol present in many commonly consumed food items, is widely demonstrated to exert inhibitory effects on cancer progression through various mechanisms. Since there is a strong association with diets containing abundant vegetables, fruits, and grains, and significant decline in the risk of colon cancer, accumulation studies have focused on the anticancer potential of quercetin in colorectal cancer. Cell cycle arrest, increase in apoptosis, antioxidant replication, modulation of estrogen receptors, regulation of signaling pathways, inhibition of and metastasis and angiogenesis are among various mechanisms underlying the chemo-preventive effects of quercetin in colorectal cancer. This review covers various therapeutic interactions of Quercetin as to how targets cellular involved in cancer treatment.
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Affiliation(s)
- Saber G Darband
- Danesh Pey Hadi Co., Health Technology, Development Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mojtaba Kaviani
- School of Nutrition and Dietetics, Acadia University, Wolfville, Nova Scotia, Canada
| | - Bahman Yousefi
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shirin Sadighparvar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Firouz G Pakdel
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Javad A Attari
- Department of Neurosurgery, Urmia University of Medical Sciences, Urmia, Iran
| | - Iraj Mohebbi
- Social Determinants of Health Center, Occupational Medicine Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Somayeh Naderi
- Danesh Pey Hadi Co., Health Technology, Development Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
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Xiao X, Zou J, Fang Y, Meng Y, Xiao C, Fu J, Liu S, Bai P, Yao Y. Fisetin and polymeric micelles encapsulating fisetin exhibit potent cytotoxic effects towards ovarian cancer cells. Altern Ther Health Med 2018; 18:91. [PMID: 29544480 PMCID: PMC5855937 DOI: 10.1186/s12906-018-2127-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 02/07/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND The anti-tumor activities of Natural compounds and their derivatives are of great interest to pharmaceutical industries. Fisetin is one of prospective natural compounds in this regard but unfortunately with poor hydrophilicity. METHODS The effects of unmodified and modified fisetin in cultured ovarian cancer cells were compared by transmission electronmicroscopy to determine apoptotic bodies, MTT assay to quantitate cell numbers, and fluorescence activated cell sorting analyse of various markers to determine the apoptotic state. In addition, the efficacy of fisetin and fisetin-micelles in vivo was determined by using immunocompromised mice. Apoptosis was measured by established markers using both western blot analysis and immunochemistry. Angiogenesis in a xenograft mouse model carring SKOV3 cells was evaluated by color Doppler ultrasound and immunohistochemistry. RESULT Multiple lines of evidence indicated that fisetin and fisetin micelles induce apoptosis in ovarian cancer cells in a dose-dependent manner. Histological analysis, terminal deoxynucleotidyltransferase-mediated nick-end labeling assay, western blot, immunohistochemical detection and microvessel density detection demonstrated that fisetin and fisetin micelles induced increased tumor apoptosis, proliferation suppression and antiangiogenesis activities. CONCLUSION As far as we know, the present study is the first time to demonstrate the potency of both fisetin and fisetin micelles inducing apoptosis in ovarian cancer cells. Further studies will be needed to validate the therapeutic potential of fisetin and fisetin micelles in ovarian cancer treatment.
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Pandith SA, Dar RA, Lattoo SK, Shah MA, Reshi ZA. Rheum australe, an endangered high-value medicinal herb of North Western Himalayas: a review of its botany, ethnomedical uses, phytochemistry and pharmacology. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2018; 17:573-609. [PMID: 32214920 PMCID: PMC7088705 DOI: 10.1007/s11101-018-9551-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 01/25/2018] [Indexed: 05/05/2023]
Abstract
Rheum australe (Himalayan Rhubarb) is a multipurpose, endemic and endangered medicinal herb of North Western Himalayas. It finds extensive use as a medicinal herb since antiquity in different traditional systems of medicine to cure a wide range of ailments related to the circulatory, digestive, endocrine, respiratory and skeletal systems as well as to treat various infectious diseases. The remedying properties of this plant species are ascribed to a set of diverse bioactive secondary metabolite constituents, particularly anthraquinones (emodin, chrysophanol, physcion, aloe-emodin and rhein) and stilbenoids (piceatannol, resveratrol), besides dietary flavonoids known for their putative health benefits. Recent studies demonstrate the pharmacological efficacy of some of these metabolites and/or their derivatives as lead molecules for the treatment of various human diseases. Present review comprehensively covers the literature available on R. australe from 1980 to early 2018. The review provides up-to-date information available on its botany for easy identification of the plant, and origin and historical perspective detailing its trade and commerce. Distribution, therapeutic potential in relation to traditional uses and pharmacology, phytochemistry and general biosynthesis of major chemical constituents are also discussed. Additionally, efficient and reproducible in vitro propagation studies holding vital significance in preserving the natural germplasm of the plant and for its industrial exploitation have also been highlighted. The review presents a detailed perspective for future studies to conserve and sustainably make use of this endangered plant species at a commercial scale.
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Affiliation(s)
- Shahzad A Pandith
- 1Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir 190006 India
| | - Riyaz Ahmad Dar
- 1Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir 190006 India
| | - Surrinder K Lattoo
- 2Plant Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, 180001 India
| | - Manzoor A Shah
- 1Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir 190006 India
| | - Zafar A Reshi
- 1Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir 190006 India
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Kim GD. Myricetin Inhibits Angiogenesis by Inducing Apoptosis and Suppressing PI3K/Akt/mTOR Signaling in Endothelial Cells. J Cancer Prev 2017; 22:219-227. [PMID: 29302579 PMCID: PMC5751839 DOI: 10.15430/jcp.2017.22.4.219] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/03/2017] [Accepted: 11/13/2017] [Indexed: 12/24/2022] Open
Abstract
Background Myricetin has been shown to possess potential antiangiogenic effects in endothelial cells. However, the underlying mechanisms are not fully understood. Therefore, we evaluated its antiangiogenic effects in human umbilical vascular endothelial cells (HUVECs). Methods HUVECs were cultured in endothelial cell growth medium-2 to induce proliferation and angiogenesis and treated with different doses of myricetin (0.25, 0.5, and 1 μM) for 24 hours. Cell proliferation was analyzed by the MTT and lactate dehydrogenase release assays; angiogenesis was determined by the tube formation assay. In addition, cell signaling pathways related to angiogenesis were investigated by Western blotting. Results Myricetin induced apoptosis and procaspase-3 cleavage though the induction of reactive oxygen species (ROS). It significantly inhibited cell migration, tube formation, and PI3K/Akt/mTOR signaling in HUVECs. Conclusions Myricetin exerts antiangiogenic effects by inducing ROS-mediated apoptosis and inhibiting PI3K/Akt/mTOR signaling in HUVECs.
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Affiliation(s)
- Gi Dae Kim
- Department of Food, Nutrition and Biotechnology, Kyungnam University, Changwon, Korea
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29
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Chemical exposure and infant leukaemia: development of an adverse outcome pathway (AOP) for aetiology and risk assessment research. Arch Toxicol 2017; 91:2763-2780. [PMID: 28536863 DOI: 10.1007/s00204-017-1986-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/08/2017] [Indexed: 01/06/2023]
Abstract
Infant leukaemia (<1 year old) is a rare disease of an in utero origin at an early phase of foetal development. Rearrangements of the mixed-lineage leukaemia (MLL) gene producing abnormal fusion proteins are the most frequent genetic/molecular findings in infant B cell-acute lymphoblastic leukaemia. In small epidemiological studies, mother/foetus exposures to some chemicals including pesticides have been associated with infant leukaemia; however, the strength of evidence and power of these studies are weak at best. Experimental in vitro or in vivo models do not sufficiently recapitulate the human disease and regulatory toxicology studies are unlikely to capture this kind of hazard. Here, we develop an adverse outcome pathway (AOP) based substantially on an analogous disease-secondary acute leukaemia caused by the topoisomerase II (topo II) poison etoposide-and on cellular and animal models. The hallmark of the AOP is the formation of MLL gene rearrangements via topo II poisoning, leading to fusion genes and ultimately acute leukaemia by global (epi)genetic dysregulation. The AOP condenses molecular, pathological, regulatory and clinical knowledge in a pragmatic, transparent and weight of evidence-based framework. This facilitates the interpretation and integration of epidemiological studies in the process of risk assessment by defining the biologically plausible causative mechanism(s). The AOP identified important gaps in the knowledge relevant to aetiology and risk assessment, including the specific embryonic target cell during the short and spatially restricted period of susceptibility, and the role of (epi)genetic features modifying the initiation and progression of the disease. Furthermore, the suggested AOP informs on a potential Integrated Approach to Testing and Assessment to address the risk caused by environmental chemicals in the future.
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Forbes-Hernandez TY, Gasparrini M, Afrin S, Bompadre S, Mezzetti B, Quiles JL, Giampieri F, Battino M. The Healthy Effects of Strawberry Polyphenols: Which Strategy behind Antioxidant Capacity? Crit Rev Food Sci Nutr 2017; 56 Suppl 1:S46-59. [PMID: 26357900 DOI: 10.1080/10408398.2015.1051919] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Current evidence indicates that the consumption of strawberries, a natural source of a wide range of nutritive and bioactive compounds, is associated with the prevention and improvement of chronic-degenerative diseases. Studies involving cells and animals provide evidence on the anti-inflammatory, anticarcinogenic and antiproliferative activity of the strawberry. Epidemiological and clinical studies demonstrate that its acute consumption increases plasma antioxidant capacity, improves circulating inflammatory markers and ameliorates postprandial glycemic response. At the same time, a protracted intake reduces chronic inflammation and improves plasma lipid profile, supporting cardiovascular health, especially in individuals with increased risk for metabolic syndrome. To explain these beneficial effects, much attention has been paid in the past to the antioxidant properties of strawberry polyphenols. However, recent research has shown that their biological and functional activities are related not only to the antioxidant capacity but also to the modulation of many cellular pathways involved in metabolism, survival, proliferation, and antioxidant defenses. The aim of this review is to update and discuss the molecular and cellular mechanisms proposed in recent studies to elucidate the healthy effects of strawberry polyphenols against the most common chronic diseases, such as cancer, cardiovascular diseases, metabolic syndrome, and inflammation.
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Affiliation(s)
- Tamara Y Forbes-Hernandez
- a Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy.,b Area de Nutrición y Salud, Universidad Internacional Iberoamericana (UNINI) , Campeche Mexico
| | - Massimiliano Gasparrini
- a Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy
| | - Sadia Afrin
- a Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy
| | - Stefano Bompadre
- c Dipartimento Scienze Biomediche e Sanità Pubblica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy
| | - Bruno Mezzetti
- d Dipartimento di Scienze Agrarie , Alimentari e Ambientali, Università Politecnica delle Marche , Ancona , Italy
| | - Josè L Quiles
- e Department of Physiology , Institute of Nutrition and Food Technology ''José Mataix", Biomedical Research Centre, University of Granada , Granada , Spain
| | - Francesca Giampieri
- a Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy.,f Centre for Nutrition & Health, Universidad Europea del Atlantico (UEA) , Santander , Spain
| | - Maurizio Battino
- a Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica , Facoltà di Medicina, Università Politecnica delle Marche , Ancona , Italy.,f Centre for Nutrition & Health, Universidad Europea del Atlantico (UEA) , Santander , Spain
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Jain CK, Majumder HK, Roychoudhury S. Natural Compounds as Anticancer Agents Targeting DNA Topoisomerases. Curr Genomics 2017; 18:75-92. [PMID: 28503091 PMCID: PMC5321768 DOI: 10.2174/1389202917666160808125213] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/23/2015] [Accepted: 11/26/2015] [Indexed: 12/14/2022] Open
Abstract
DNA topoisomerases are important cellular enzymes found in almost all types of living cells (eukaryotic and prokaryotic). These enzymes are essential for various DNA metabolic processes e.g. replication, transcription, recombination, chromosomal decatenation etc. These enzymes are important molecular drug targets and inhibitors of these enzymes are widely used as effective anticancer and antibacterial drugs. However, topoisomerase inhibitors have some therapeutic limitations and they exert serious side effects during cancer chemotherapy. Thus, development of novel anticancer topoisomerase inhibitors is necessary for improving cancer chemotherapy. Nature serves as a repertoire of structurally and chemically diverse molecules and in the recent years many DNA topoisomerase inhibitors have been identified from natural sources. The present review discusses anticancer properties and therapeutic importance of eighteen recently identified natural topoisomerase inhibitors (from the year 2009 to 2015). Structural characteristics of these novel inhibitors provide backbones for designing and developing new anticancer drugs.
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Affiliation(s)
- Chetan Kumar Jain
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Susanta Roychoudhury
- Division of Research, Saroj Gupta Cancer Centre & Research Institute, M G Road, Thakurpukur, Kolkata-700 063, India
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32
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Hytti M, Szabó D, Piippo N, Korhonen E, Honkakoski P, Kaarniranta K, Petrovski G, Kauppinen A. Two dietary polyphenols, fisetin and luteolin, reduce inflammation but augment DNA damage-induced toxicity in human RPE cells. J Nutr Biochem 2017; 42:37-42. [PMID: 28113103 DOI: 10.1016/j.jnutbio.2016.12.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 12/02/2016] [Accepted: 12/28/2016] [Indexed: 12/11/2022]
Abstract
Plant-derived polyphenols are known to possess anti-inflammatory and antioxidant effects. In recent years, several studies have investigated their potential benefits for treating chronic diseases associated with prolonged inflammation and excessive oxidative stress, such as age-related macular degeneration (AMD). Previously, two polyphenols, fisetin and luteolin, have been reported to increase the survival of retinal pigment epithelial (RPE) cells suffering from oxidative stress as well as decreasing inflammation but the benefits of polyphenol therapy seem to depend on the model system used. Our aim was to analyze the effects of fisetin and luteolin on inflammation and cellular viability in a model of nonoxidative DNA damage-induced cell death in human RPE (hRPE) cells. Pretreatment of ARPE-19 or primary hRPE cells with the polyphenols augmented etoposide-induced cell death as measured by the lactate dehydrogenase and 3-(4,5-dimethyldiazol-2-yl)-2,5-diphenyltetrazolium bromide assays. However, the treatment was able to reduce the release of two proinflammatory cytokines, IL-6 and IL-8, which were determined by enzyme-linked Immunosorbent assay. Analyses of caspase 3 activity, p53 acetylation and SIRT1 protein levels revealed the apoptotic nature of etoposide-evoked cell death and that fisetin and luteolin augmented the etoposide-induced acetylation of p53 and decreased SIRT1 levels. Taken together, our findings suggest that the cytoprotective effects of fisetin and luteolin depend on the stressor they need to combat, whereas their anti-inflammatory potential is sustained over a variety of model systems. Careful consideration of disease pathways will be necessary before fisetin or luteolin can be recommended as therapeutic agents for inflammatory diseases in general and specifically AMD.
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Affiliation(s)
- Maria Hytti
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland; Department of Ophthalmology, School of Medicine, University of Eastern Finland, Kuopio, Finland.
| | - Dora Szabó
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - Niina Piippo
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland; Department of Ophthalmology, School of Medicine, University of Eastern Finland, Kuopio, Finland.
| | - Eveliina Korhonen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland; Department of Ophthalmology, School of Medicine, University of Eastern Finland, Kuopio, Finland.
| | - Paavo Honkakoski
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.
| | - Kai Kaarniranta
- Department of Ophthalmology, School of Medicine, University of Eastern Finland, Kuopio, Finland; Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland.
| | - Goran Petrovski
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary; Center of Eye Research, Department of Ophthalmology, and Norwegian Center for Stem Cell Research, Oslo University Hospital, University of Oslo, Oslo, Norway.
| | - Anu Kauppinen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.
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Advances in the Chemistry of Natural and Semisynthetic Topoisomerase I/II Inhibitors. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63929-5.00002-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Biechonski S, Gourevich D, Rall M, Aqaqe N, Yassin M, Zipin-Roitman A, Trakhtenbrot L, Olender L, Raz Y, Jaffa AJ, Grisaru D, Wiesmuller L, Elad D, Milyavsky M. Quercetin alters the DNA damage response in human hematopoietic stem and progenitor cellsviaTopoII- and PI3K-dependent mechanisms synergizing in leukemogenic rearrangements. Int J Cancer 2016; 140:864-876. [DOI: 10.1002/ijc.30497] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/01/2016] [Accepted: 10/13/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Shahar Biechonski
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Dana Gourevich
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
- Department of Biomedical Engineering, Faculty of Engineering; Tel Aviv University; Tel Aviv Israel
| | - Melanie Rall
- Department of Obstetrics and Gynecology; Gynecological Oncology, University of Ulm; Ulm Germany
| | - Nasma Aqaqe
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Muhammad Yassin
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Adi Zipin-Roitman
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | | | - Leonid Olender
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Yael Raz
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
- Department of Obstetrics and Gynecology; Gynecologic Oncology Division, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center; Tel-Aviv Israel
| | - Ariel J. Jaffa
- Ultrasound Unit in Obstetrics and Gynecology; Lis Maternity Hospital, Tel Aviv Sourasky Medical Center; Tel-Aviv Israel
- Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Dan Grisaru
- Department of Obstetrics and Gynecology; Gynecologic Oncology Division, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center; Tel-Aviv Israel
- Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Lisa Wiesmuller
- Department of Obstetrics and Gynecology; Gynecological Oncology, University of Ulm; Ulm Germany
| | - David Elad
- Department of Biomedical Engineering, Faculty of Engineering; Tel Aviv University; Tel Aviv Israel
| | - Michael Milyavsky
- Department of Pathology, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
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35
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Nan G, Sun J, Ding M, Yang X, Yang G. Interaction behavior between myricetin and dihydromyricetin with pepsin by spectroscopic and docking methods. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Lall RK, Adhami VM, Mukhtar H. Dietary flavonoid fisetin for cancer prevention and treatment. Mol Nutr Food Res 2016; 60:1396-405. [PMID: 27059089 DOI: 10.1002/mnfr.201600025] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 12/14/2022]
Abstract
Cancer remains a major public health concern and a significant cause of death worldwide. Identification of bioactive molecules that have the potential to inhibit carcinogenesis continues to garner interest among the scientific community. In particular, flavonoids from dietary sources are the most sought after because of their safety, cost-effectiveness, and feasibility of oral administration. Emerging data have provided newer insights into understanding the molecular mechanisms that are essential to identify novel mechanism-based strategies for cancer prevention and treatment. Dietary flavonoid fisetin (3,3',4',7-tetrahydroxyflavone) found in many fruits and vegetables has been shown in preclinical studies to inhibit cancer growth through alteration of cell cycle, inducing apoptosis, angiogenesis, invasion, and metastasis without causing any toxicity to normal cells. Although data from in-vitro and in-vivo studies look convincing, well-designed clinical trials in humans are needed to conclusively determine the efficacy across various cancers. This review highlights the chemopreventive and therapeutic effects, molecular targets, and mechanisms that contribute to the observed anticancer activity of fisetin against various cancers.
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Affiliation(s)
- Rahul K Lall
- Department of Food Science, University of Wisconsin-Madison, Madison, WI, USA.,Department of Dermatology, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Hasan Mukhtar
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI, USA
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Myricetin: A Dietary Molecule with Diverse Biological Activities. Nutrients 2016; 8:90. [PMID: 26891321 PMCID: PMC4772053 DOI: 10.3390/nu8020090] [Citation(s) in RCA: 359] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 12/16/2015] [Accepted: 12/23/2015] [Indexed: 01/09/2023] Open
Abstract
Myricetin is a common plant-derived flavonoid and is well recognised for its nutraceuticals value. It is one of the key ingredients of various foods and beverages. The compound exhibits a wide range of activities that include strong anti-oxidant, anticancer, antidiabetic and anti-inflammatory activities. It displays several activities that are related to the central nervous system and numerous studies have suggested that the compound may be beneficial to protect against diseases such as Parkinson's and Alzheimer's. The use of myricetin as a preserving agent to extend the shelf life of foods containing oils and fats is attributed to the compound's ability to protect lipids against oxidation. A detailed search of existing literature revealed that there is currently no comprehensive review available on this important molecule. Hence, the present work includes the history, synthesis, pharmaceutical applications and toxicity studies of myricetin. This report also highlights structure-activity relationships and mechanisms of action for various biological activities.
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Fisetin and Its Role in Chronic Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 928:213-244. [DOI: 10.1007/978-3-319-41334-1_10] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Choi J, Polcher A, Joas A. Systematic literature review on Parkinson's disease and Childhood Leukaemia and mode of actions for pesticides. ACTA ACUST UNITED AC 2016. [DOI: 10.2903/sp.efsa.2016.en-955] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Hadžić M, Haverić S, Haverić A, Galić B. Inhibitory effects of delphinidin and luteolin on genotoxicity induced by K2B3O3F4OH) in human lymphocytes in vitro. Biologia (Bratisl) 2015. [DOI: 10.1515/biolog-2015-0066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ginkgo biloba leaf extract induces DNA damage by inhibiting topoisomerase II activity in human hepatic cells. Sci Rep 2015; 5:14633. [PMID: 26419945 PMCID: PMC4588569 DOI: 10.1038/srep14633] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 09/02/2015] [Indexed: 11/09/2022] Open
Abstract
Ginkgo biloba leaf extract has been shown to increase the incidence in liver tumors in mice in a 2-year bioassay conducted by the National Toxicology Program. In this study, the DNA damaging effects of Ginkgo biloba leaf extract and many of its constituents were evaluated in human hepatic HepG2 cells and the underlying mechanism was determined. A molecular docking study revealed that quercetin, a flavonoid constituent of Ginkgo biloba, showed a higher potential to interact with topoisomerase II (Topo II) than did the other Ginkgo biloba constituents; this in silico prediction was confirmed by using a biochemical assay to study Topo II enzyme inhibition. Moreover, as measured by the Comet assay and the induction of γ-H2A.X, quercetin, followed by keampferol and isorhamnetin, appeared to be the most potent DNA damage inducer in HepG2 cells. In Topo II knockdown cells, DNA damage triggered by Ginkgo biloba leaf extract or quercetin was dramatically decreased, indicating that DNA damage is directly associated with Topo II. DNA damage was also observed when cells were treated with commercially available Ginkgo biloba extract product. Our findings suggest that Ginkgo biloba leaf extract- and quercetin-induced in vitro genotoxicity may be the result of Topo II inhibition.
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Lim JY, Lee JY, Byun BJ, Kim SH. Fisetin targets phosphatidylinositol-3-kinase and induces apoptosis of human B lymphoma Raji cells. Toxicol Rep 2015; 2:984-989. [PMID: 28962438 PMCID: PMC5598213 DOI: 10.1016/j.toxrep.2015.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/29/2015] [Accepted: 07/05/2015] [Indexed: 01/16/2023] Open
Abstract
Fisetin inhibits PI3K activity at the enzymatic and cellular levels. Fisetin induces the apoptosis of Raji cells by downregulating cIAP-2 protein expression. The pro-apoptotic activity of fisetin may be linked to a potential to inhibit mTOR signaling and to induce DNA damage.
Aberrant regulation of phosphatidylinositol-3-kinases (PI3Ks) is known to be involved in the progression of cancers. PI3K-binding flavonoids such as quercetin and myricetin have been shown to inhibit PI3K activity, but the direct targeting of fisetin to PI3K has not been established. Here, we carried out an in silico investigation of fisetin binding to PI3K and determined fisetin’s inhibitory activity in enzymatic and cell-based assays. In addition, fisetin induced apoptosis in human Burkitt’s lymphoma Raji cells by inhibiting both PI3Ks and mammalian target of rapamycin (mTOR). Our results indicate that fisetin may serve as a natural backbone for the development of novel dual inhibitors of PI3Ks and mTOR for the treatment of cancer.
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Affiliation(s)
- Ji Yeon Lim
- Laboratory of Translational Therapeutics, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Joo Yun Lee
- Center for Drug Discovery Technology, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Byung Jin Byun
- Center for Drug Discovery Technology, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
- Corresponding author.
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon 305-764, Republic of Korea
- Corresponding author at: Laboratory of Translational Therapeutics, Korea Research Institute of Chemical Technology, Daejeon 305 600, Republic of Korea.
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Myricetin inhibits proliferation and induces apoptosis and cell cycle arrest in gastric cancer cells. Mol Cell Biochem 2015; 408:163-70. [PMID: 26112905 DOI: 10.1007/s11010-015-2492-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
Abstract
Myricetin is a flavonoid that is abundant in fruits and vegetables and has protective effects against cancer and diabetes. However, the mechanism of action of myricetin against gastric cancer (GC) is not fully understood. We researched myricetin on the proliferation, apoptosis, and cell cycle in GC HGC-27 and SGC7901 cells, to explore the underlying mechanism of action. Cell Counting Kit (CCK)-8 assay, Western blotting, cell cycle analysis, and apoptosis assay were used to evaluate the effects of myricetin on cell proliferation, apoptosis, and the cell cycle. To analyze the binding properties of ribosomal S6 kinase 2 (RSK2) with myricetin, surface plasmon resonance (SPR) analysis was performed. CCK8 assay showed that myricetin inhibited GC cell proliferation. Flow cytometry analysis showed that myricetin induces apoptosis and cell cycle arrest in GC cells. Western blotting indicated that myricetin influenced apoptosis and cell cycle arrest of GC cells by regulating related proteins. SPR analysis showed strong binding affinity of RSK2 and myricetin. Myricetin bound to RSK2, leading to increased expression of Mad1, and contributed to inhibition of HGC-27 and SGC7901 cell proliferation. Our results suggest the therapeutic potential of myricetin in GC.
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Zang W, Wang T, Wang Y, Li M, Xuan X, Ma Y, Du Y, Liu K, Dong Z, Zhao G. Myricetin exerts anti-proliferative, anti-invasive, and pro-apoptotic effects on esophageal carcinoma EC9706 and KYSE30 cells via RSK2. Tumour Biol 2014; 35:12583-92. [PMID: 25192723 DOI: 10.1007/s13277-014-2579-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 08/29/2014] [Indexed: 01/06/2023] Open
Abstract
Myricetin, a common dietary flavonoid, is widely distributed in fruits and vegetables and is used as a health food supplement based on its anti-tumor properties. However, the effect and mechanisms of myricetin in esophageal carcinoma are not fully understood. Here, we demonstrated the effect of myricetin on the proliferation, apoptosis, and invasion of the esophageal carcinoma cell lines EC9706 and KYSE30 and explored the underlying mechanism and target protein(s) of myricetin. CCK-8 assay, transwell invasion assay, wound-healing assay, cell cycle analysis, and apoptosis assay were used to evaluate the effects of myricetin on cell proliferation, invasion, and apoptosis. Nude mouse tumor xenograft model was built to understand the interaction between myricetin and NTD RSK2. Pull-down assay was used to verify molecular mechanism. Myricetin inhibited proliferation and invasion and induced apoptosis of EC9706 and KYSE30 cells. Moreover, myricetin was shown to bind RSK2 through the NH2-terminal kinase domain. Finally, myricetin inhibited EC9706 and KYSE30 cell proliferation through Mad1 and induced cell apoptosis via Bad. Myricetin inhibits the proliferation and invasion and induces apoptosis in EC9706 and KYSE30 cells via RSK2. Myricetin exerts anti-proliferative, anti-invasive, and pro-apoptotic effects on esophageal carcinoma EC9706 and KYSE30 cells via RSK2. Our results provide novel insight into myricetin as a potential agent for the prevention and treatment of esophageal carcinoma.
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Affiliation(s)
- Wenqiao Zang
- College of Basic Medical Sciences, Zhengzhou University, No. 100 Kexue Road, Zhengzhou, 450001, China
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Dellafiora L, Mena P, Del Rio D, Cozzini P. Modeling the effect of phase II conjugations on topoisomerase I poisoning: pilot study with luteolin and quercetin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5881-5886. [PMID: 24869916 DOI: 10.1021/jf501548g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Topoisomerases are targeted by several drugs in cancer chemotherapy acting as key enzymes in cell viability. Some flavonoids and their glycosides may exert health protective effects through the poisoning of topoisomerases. However, previous studies did not consider the substantial modifications taking place after ingestion neglecting that only metabolites can interact with the internal compartments of the human body. Since the high number of possible metabolites hinders their systematic analysis, an in silico approach can be a valuable tool to prioritize compounds by identifying candidates for further characterization. Specifically focusing on luteolin and quercetin, among the most ubiquitous flavonoids in the human diet, this work reports a computational procedure to model the effect of hepatic phase II conjugative metabolism on poisoning of human Topoisomerase I. As a general effect, glucuronidation and sulphation might enhance and quench poisoning activity, respectively. Among all, quercetin-3-O-glucuronide represents a promising candidate to be analyzed more thoroughly.
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Affiliation(s)
- Luca Dellafiora
- Molecular Modeling Laboratory, Department of Food Science, ‡The Laboratory of Phytochemicals in Physiology, Human Nutrition Unit, Department of Food Science, and §LS9 Bioactives and Health, Interlaboratory Group, Department of Food Science, University of Parma , 43125 Parma, Italy
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Ashley RE, Osheroff N. Natural products as topoisomerase II poisons: effects of thymoquinone on DNA cleavage mediated by human topoisomerase IIα. Chem Res Toxicol 2014; 27:787-93. [PMID: 24650156 PMCID: PMC4033629 DOI: 10.1021/tx400453v] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
The
seeds of Nigella sativa (often
referred to as black seed) have long been utilized as a medicinal
herb in Middle Eastern, Northern African, and Indian cultures. Historically,
black seed has been used to treat a variety of illnesses associated
with inflammation. More recent studies have found that it induces
apoptosis and displays anticancer activity in animal and cellular
models. The major bioactive compound of black seed is thymoquinone,
which shares structural features with 1,4-benzoquinone and other covalent
topoisomerase II poisons. Because a number of anticancer drugs target
type II topoisomerases, we determined the effects of thymoquinone
and a series of related quinones on human topoisomerase IIα.
Thymoquinone enhanced enzyme-mediated DNA cleavage ∼5-fold,
which is similar to the increase seen with the anticancer drug etoposide.
In order to enhance cleavage, compounds had to have at least two positions
available for acylation. Furthermore, activity was decreased by the
inclusion of electron-donating groups or bulky substituents. As predicted
for a covalent topoisomerase II poison, the activity of thymoquinone
(and related compounds) was abrogated by the addition of a reducing
agent. Also, thymoquinone inhibited topoisomerase IIα activity
when incubated with the enzyme prior to the addition of DNA. Cleavage
complexes formed in the presence of the compound were stable for at
least 8 h. Lastly, black seed extract and black seed oil both increased
levels of enzyme-mediated DNA cleavage, suggesting that thymoquinone
is active even in more complex herbal formulations. These findings
indicate that thymoquinone can be added to the growing list of dietary
and medicinal natural products with activity against human type II
topoisomerases.
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Affiliation(s)
- Rachel E Ashley
- Departments of †Biochemistry and ‡Medicine (Hematology/Oncology), Vanderbilt University School of Medicine , Nashville, Tennessee 37232-0146, United States
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Gollapudi P, Hasegawa LS, Eastmond DA. A comparative study of the aneugenic and polyploidy-inducing effects of fisetin and two model Aurora kinase inhibitors. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2014; 767:37-43. [PMID: 24680981 DOI: 10.1016/j.mrgentox.2014.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/14/2014] [Accepted: 03/15/2014] [Indexed: 01/23/2023]
Abstract
Fisetin, a plant flavonol commonly found in fruits, nuts and vegetables, is frequently added to nutritional supplements due to its reported cardioprotective, anti-carcinogenic and antioxidant properties. Earlier reports from our laboratory and others have indicated that fisetin has both aneugenic and clastogenic properties in cultured cells. More recently, fisetin has also been reported to target Aurora B kinase, a Ser/Thr kinase involved in ensuring proper microtubule attachment at the spindle assembly checkpoint, and an enzyme that is overexpressed in several types of cancer. Here we have further characterized the chromosome damage caused by fisetin and compared it with that induced by two known Aurora kinase inhibitors, VX-680 and ZM-447439, in cultured TK6 cells using the micronucleus assay with CREST staining as well as a flow cytometry-based assay that measures multiple types of numerical chromosomal aberrations. The three compounds were highly effective in inducing aneuploidy and polyploidy as evidenced by increases in kinetochore-positive micronuclei, hyperdiploidy, and polyploidy. With fisetin, however, the latter two effects were most significantly observed only after cells were allowed to overcome a cell cycle delay, and occurred at higher concentrations than those induced by the other Aurora kinase inhibitors. Modest increases in kinetochore-negative micronuclei were also seen with the model Aurora kinase inhibitors. These results indicate that fisetin induces multiple types of chromosome abnormalities in human cells, and indicate a need for a thorough investigation of fisetin-augmented dietary supplements.
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Affiliation(s)
- P Gollapudi
- Environmental Toxicology Graduate Program and Department of Cell Biology & Neuroscience, University of California, Riverside, CA 92521, USA
| | - L S Hasegawa
- Environmental Toxicology Graduate Program and Department of Cell Biology & Neuroscience, University of California, Riverside, CA 92521, USA
| | - D A Eastmond
- Environmental Toxicology Graduate Program and Department of Cell Biology & Neuroscience, University of California, Riverside, CA 92521, USA.
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Ketron AC, Osheroff N. Phytochemicals as Anticancer and Chemopreventive Topoisomerase II Poisons. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2014; 13:19-35. [PMID: 24678287 PMCID: PMC3963363 DOI: 10.1007/s11101-013-9291-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Phytochemicals are a rich source of anticancer drugs and chemopreventive agents. Several of these chemicals appear to exert at least some of their effects through interactions with topoisomerase II, an essential enzyme that regulates DNA supercoiling and removes knots and tangles from the genome. Topoisomerase II-active phytochemicals function by stabilizing covalent protein-cleaved DNA complexes that are intermediates in the catalytic cycle of the enzyme. As a result, these compounds convert topoisomerase II to a cellular toxin that fragments the genome. Because of their mode of action, they are referred to as topoisomerase II poisons as opposed to catalytic inhibitors. The first sections of this article discuss DNA topology, the catalytic cycle of topoisomerase II, and the two mechanisms (interfacial vs. covalent) by which different classes of topoisomerase II poisons alter enzyme activity. Subsequent sections discuss the effects of several phytochemicals on the type II enzyme, including demethyl-epipodophyllotoxins (semisynthetic anticancer drugs) as well as flavones, flavonols, isoflavones, catechins, isothiocyanates, and curcumin (dietary chemopreventive agents). Finally, the leukemogenic potential of topoisomerase II-targeted phytochemicals is described.
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Affiliation(s)
- Adam C. Ketron
- Department of Biochemistry and the Vanderbilt Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 USA
| | - Neil Osheroff
- Departments of Biochemistry and Medicine (Hematology/Oncology) and the Vanderbilt Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 USA
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Lee SH, Kang YJ, Kim DH, Sung B, Kang JA, Chun P, Yoon JH, Moon HR, Kim HS, Chung HY, Kim ND. A novel oxiranylchromenone derivative, MHY336, induces apoptosis and cell cycle arrest via a p53- and p21-dependent pathway in HCT116 human colon cancer cells. Int J Oncol 2013; 44:943-9. [PMID: 24365999 DOI: 10.3892/ijo.2013.2226] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 11/21/2013] [Indexed: 11/06/2022] Open
Abstract
In this study, we compared cytotoxicity, cell cycle distribution, and apoptosis on MHY336 treatment in three human colorectal carcinoma HCT116 cells: p53+/+ (p53‑wt), p53-/- (p53-null), and p21-/- (p21-null), as well as investigated the roles of p53 and p21 in cell death. Using these three isogenic variants, the roles of p53 and p21 in the cellular response to treatment with MHY336, a novel topoisomerase IIα inhibitor, were investigated. Our results showed that MHY336 treatment increased the expression of p53 over time in cells with wild-type p53 status. This elevated levels of p53 is associated with increased DNA fragmentation, and cleavage of poly(ADP-ribose) polymerase, consistent with increased sensitivity of these cells to apoptotic stimuli. However, p53-null and p21-null cells were more resistant to the antiproliferative and apoptotic effects of MHY336 than p53-wt cells. The same result was achieved by knocking down p53 and p21 with siRNA in p53-wt cells, indicating that p53 and p21 play a crucial role in MHY336-induced cell cycle arrest and apoptosis. Taken together, these results suggest that MHY336 could be a potential candidate to be used in chemoprevention and/or treatment of colon cancer.
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Affiliation(s)
- Sun Hwa Lee
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Yong Jung Kang
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Dong Hwan Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Bokyung Sung
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Jin Ah Kang
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Pusoon Chun
- College of Pharmacy, Inje University, Gimhae, Gyeongnam 621-749, Republic of Korea
| | - Jeong-Hyun Yoon
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hyung Ryong Moon
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hyung Sik Kim
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hae Young Chung
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Nam Deuk Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
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