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Morán-Serradilla C, Plano D, Sharma AK, Sanmartín C. Following the Trace of Cyclodextrins on the Selenium and Tellurium Odyssey. Int J Mol Sci 2024; 25:7799. [PMID: 39063040 DOI: 10.3390/ijms25147799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
There is an urgent need to develop safer and more effective modalities for the treatment of numerous pathologies due to the increasing rates of drug resistance, undesired side effects, poor clinical outcomes, etc. Over the past decades, cyclodextrins (CDs) have gathered great attention as potential drug carriers due to their ability to enhance their bioactivities and properties. Likewise, selenium (Se) and tellurium (Te) have been extensively studied during the last decades due to their possible therapeutical applications. Although there is limited research on the relationship between Se and Te and CDs, herein, we highlight different representative examples of the advances related to this topic as well as give our view on the future directions of this emerging area of research. This review encompasses three different aspects of this relationship: (1) modification of the structure of the different CDs; (2) formation of host-guest interaction complexes of naïve CDs with Se and Te derivatives in order to overcome specific limitations of the latter; and (3) the use of CDs as catalysts to achieve novel Se and Te compounds.
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Affiliation(s)
| | - Daniel Plano
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain
| | - Arun K Sharma
- Department of Pharmacology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA
- Penn State Cancer Institute, 400 University Drive, Hershey, PA 17033, USA
| | - Carmen Sanmartín
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain
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2
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Salgado MTSF, Fernandes E Silva E, Nascimento MAD, Lopes AC, Paiva LSD, Votto APDS. Potential Therapeutic Targets of Quercetin in the Cutaneous Melanoma Model and Its Cellular Regulation Pathways: A Systematic Review. Nutr Cancer 2023; 75:1687-1709. [PMID: 37553896 DOI: 10.1080/01635581.2023.2241698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 08/10/2023]
Abstract
Melanoma is a skin cancer with a high mortality rate due to its invasive characteristics. Currently, immunotherapy and targeted therapy increase patient survival but are ineffective in the advanced stages of the tumor. Quercetin (Que) is a natural compound that has demonstrated chemopreventive effects against different types of tumors. This review provides evidence for the therapeutic potential of Que in melanoma and identifies its main targets. The Scopus, Web of Science, and PubMed databases were searched, and studies that used free or encapsulated Que in melanoma models were included, excluding associations, analogs, and extracts. As a result, 73 articles were retrieved and their data extracted. Que has multiple cellular targets in melanoma models, and the main regulated pathways are cell death, redox metabolism, metastasis, and melanization. Que was also able to regulate important targets of signaling pathways, such as PKC, RIG-I, STAT, and P53. In murine models, treatment with Que reduced tumor growth and weight, and decreased metastatic nodules and angiogenic vasculature. Several studies have incorporated Que into carriers, demonstrating improved efficacy and delivery to tumors. Thus, Que is a promising therapeutic agent for the treatment of melanoma; however, further studies are needed to evaluate its effectiveness in clinical trials.
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Affiliation(s)
- Mariana Teixeira Santos Figueiredo Salgado
- Laboratório de Cultura Celular, ICB, FURG, Rio Grande, RS, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB, FURG, Rio Grande, RS, Brazil
| | | | - Mariana Amaral do Nascimento
- Laboratório de Imunorregulação, Departamento de Imunobiologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | | | - Luciana Souza de Paiva
- Laboratório de Imunorregulação, Departamento de Imunobiologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Programa de Pós-Graduação em Patologia, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Ana Paula de Souza Votto
- Laboratório de Cultura Celular, ICB, FURG, Rio Grande, RS, Brazil
- Programa de Pós-Graduação em Ciências Fisiológicas, ICB, FURG, Rio Grande, RS, Brazil
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Bhartiya P, Chawla R, Dutta PK. pH‐Responsive Charge‐Convertible
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‐Succinyl Chitosan‐Quercetin Coordination Polymer Nanoparticles for Effective NIR Photothermal Cancer Therapy. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Prabha Bhartiya
- Polymer Research laboratory Department of Chemistry Motilal Nehru National Institute of Technology Allahabad Prayagraj 211004 India
| | - Ruchi Chawla
- Polymer Research laboratory Department of Chemistry Motilal Nehru National Institute of Technology Allahabad Prayagraj 211004 India
| | - Pradip K. Dutta
- Polymer Research laboratory Department of Chemistry Motilal Nehru National Institute of Technology Allahabad Prayagraj 211004 India
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Martínez-Silvestre KE, Santiz-Gómez JA, Luján-Hidalgo MC, Ruiz-Lau N, Sánchez-Roque Y, Gutiérrez-Miceli FA. Effect of UV-B Radiation on Flavonoids and Phenols Accumulation in Tempisque ( Sideroxylon capiri Pittier) Callus. PLANTS (BASEL, SWITZERLAND) 2022; 11:473. [PMID: 35214805 PMCID: PMC8875756 DOI: 10.3390/plants11040473] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/29/2022] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Tempisque (Sideroxylon capiri Pittier) is classified as a threatened species and has been reported with a high content of phenols and flavonoids in the leaves. The use of abiotic elicitors such as radiation has been reported due to the changes it produces in the metabolism of plants by activating their defense mechanisms and increasing the biosynthesis of bioactive compounds with antioxidant capacity such as phenols and flavonoids. Therefore, the aim of this work was to evaluate the effect of UV-B radiation on growth parameters and the synthesis of bioactive compounds in in vitro culture of tempisque callus. For the callus induction, we used thidiazuron (TDZ) and 2,4-dichlorophenoxyacetic acid (2,4-D) at 0, 0.5 and 1 mg/L. Calluses were exposed to UV-B radiation (0, 1, 2, 3 and 4 h/day) for two and four weeks. The highest callus formation index was obtained with TDZ and 2,4-D at 1 mg/mL. The greatest increase in the concentration of phenols and flavonoids was detected in the fourth week with 4 h of exposure per day. The highest concentrations of quercetin (230 µg/g dry weight), kaempferol (235 µg/g dry weight) and gallic acid (240 µg/g dry weight) were found in callus obtained from leaves explants.
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Affiliation(s)
- Karina E. Martínez-Silvestre
- Tecnológico Nacional de México, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Chiapas, Mexico; (K.E.M.-S.); (J.A.S.-G.); (M.C.L.-H.)
| | - José Alfredo Santiz-Gómez
- Tecnológico Nacional de México, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Chiapas, Mexico; (K.E.M.-S.); (J.A.S.-G.); (M.C.L.-H.)
| | - María Celina Luján-Hidalgo
- Tecnológico Nacional de México, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Chiapas, Mexico; (K.E.M.-S.); (J.A.S.-G.); (M.C.L.-H.)
| | - Nancy Ruiz-Lau
- Cátedra CONACYT—Tecnológico Nacional de México-Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Chiapas, Mexico;
| | - Yazmin Sánchez-Roque
- Dirección de Ingeniería Agroindustrial, Universidad Politécnica de Chiapas, Carretera Tuxtla Gutiérrez-Portillo Zaragoza Km 21+500, Colonia Las Brisas, Suchiapa 29150, Chiapas, Mexico;
| | - Federico A. Gutiérrez-Miceli
- Tecnológico Nacional de México, División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Chiapas, Mexico; (K.E.M.-S.); (J.A.S.-G.); (M.C.L.-H.)
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Tan C, Kong Y, Tong Y, Deng H, Wang M, Zhao Y, Wan M, Lin S, Liu X, Meng X, Ma Y. Anti-apoptotic effects of high hydrostatic pressure treated cyanidin-3-glucoside and blueberry pectin complexes on lipopolysaccharide-induced inflammation in Caco-2 cells. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Pinheiro RGR, Pinheiro M, Neves AR. Nanotechnology Innovations to Enhance the Therapeutic Efficacy of Quercetin. NANOMATERIALS 2021; 11:nano11102658. [PMID: 34685098 PMCID: PMC8539325 DOI: 10.3390/nano11102658] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 12/12/2022]
Abstract
Quercetin is a flavonol present in many vegetables and fruits. Generally, quercetin can be found in aglycone and glycoside forms, mainly in leaves. The absorption of this compound occurs in the large and small intestine, where it suffers glucuronidation, sulfidation, and methylation to improve hydrophilicity. After metabolization, which occurs mainly in the gut, it is distributed throughout the whole organism and is excreted by feces, urine, and exhalation of carbon dioxide. Despite its in vitro cytotoxicity effects, in vivo studies with animal models ensure its safety. This compound can protect against cancer, cardiovascular diseases, chronic inflammation, oxidative stress, and neurodegenerative diseases due to its radical scavenging and anti-inflammatory properties. However, its poor bioavailability dampens the potential beneficial effects of this flavonoid. In that sense, many types of nanocarriers have been developed to improve quercetin solubility, as well as to design tissue-specific delivery systems. All these studies manage to improve the bioavailability of quercetin, allowing it to increase its concentration in the desired places. Collectively, quercetin can become a promising compound if nanotechnology is employed as a tool to enhance its therapeutic efficacy.
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Affiliation(s)
- Rúben G. R. Pinheiro
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.G.R.P.); (M.P.)
| | - Marina Pinheiro
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.G.R.P.); (M.P.)
| | - Ana Rute Neves
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.G.R.P.); (M.P.)
- CQM—Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- Correspondence:
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Zhao X, Wang J, Deng Y, Liao L, Zhou M, Peng C, Li Y. Quercetin as a protective agent for liver diseases: A comprehensive descriptive review of the molecular mechanism. Phytother Res 2021; 35:4727-4747. [PMID: 34159683 DOI: 10.1002/ptr.7104] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/12/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023]
Abstract
Quercetin is the major representative of the flavonoid subgroup of flavones, with good pharmacological activities for the treatment of liver diseases, including liver steatosis, fatty hepatitis, liver fibrosis, and liver cancer. It can significantly influence the development of liver diseases via multiple targets and multiple pathways via antifat accumulation, anti-inflammatory, and antioxidant activity, as well as the inhibition of cellular apoptosis and proliferation. Despite extensive research on understanding the mechanism of quercetin in the treatment of liver diseases, there are still no targeted therapies available. Thus, we have comprehensively searched and summarized the different targets of quercetin in different stages of liver diseases and concluded that quercetin inhibited inflammation of the liver mainly through NF-κB/TLR/NLRP3, reduced PI3K/Nrf2-mediated oxidative stress, mTOR activation in autophagy, and inhibited the expression of apoptotic factors associated with the development of liver diseases. In addition, quercetin showed different mechanisms of action at different stages of liver diseases, including the regulation of PPAR, UCP, and PLIN2-related factors via brown fat activation in liver steatosis. The compound inhibited stromal ECM deposition at the liver fibrosis stage, affecting TGF1β, endoplasmic reticulum stress (ERs), and apoptosis. While at the final liver cancer stage, inhibiting cancer cell proliferation and spread via the hTERT, MEK1/ERK1/2, Notch, and Wnt/β-catenin-related signaling pathways. In conclusion, quercetin is an effective liver protectant. We hope to explore the pathogenesis of quercetin in different stages of liver diseases through the review, so as to provide more accurate targets and theoretical basis for further research of quercetin in the treatment of liver diseases.
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Affiliation(s)
- Xingtao Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mengting Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Li H, Li M, Fu J, Ao H, Wang W, Wang X. Enhancement of oral bioavailability of quercetin by metabolic inhibitory nanosuspensions compared to conventional nanosuspensions. Drug Deliv 2021; 28:1226-1236. [PMID: 34142631 PMCID: PMC8218931 DOI: 10.1080/10717544.2021.1927244] [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] [Indexed: 11/19/2022] Open
Abstract
Quercetin-loaded nanosuspensions (Que-NSps) added metabolic inhibitors were evaluated as drug delivery system to promote the oral bioavailability of quercetin. Que-NSps were prepared respectively using d-alpha tocopherol acid polyethylene glycol succinate (TPGS) or Soybean Lecithin (SPC) as stabilizer. On the basis, Piperine (Pip) or sodium oleate (SO) was, respectively, encapsulated in Que-NSps as phase II metabolic inhibitors. The resulting Que-NSps all displayed a mean particle size of about 200 nm and drug loading content was in the range of 22.3–27.8%. The release of quercetin from Que-NSps was slow and sustained. After oral administration of 50 mg/kg different Que-NSps, the levels of free quercetin in plasma were significantly promoted, the concentration of quercetin metabolites (isorhamnetin and quercetin 3-O-β-d-Glucuronide) were decreased. The absolute bioavailability was, respectively 15.55%, 6.93%, 12.38%, and 23.58% for TPGS-Que-NSps, TPGS-SO-Que-NSps, SPC-Que-NSps, and SPC-Pip-Que-NSps, and 3.61% for quercetin water suspension. SPC-Pip-Que-NSps turned out to an ideal nanocarrier combined nano drug delivery system together with metabolic inhibitor to promote oral absorption of quercetin.
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Affiliation(s)
- Haowen Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
| | - Manzhen Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
| | - Jingxin Fu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
| | - Hui Ao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
| | - Weihua Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haidian District, Beijing, PR China
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Parhi B, Bharatiya D, Swain SK. Application of quercetin flavonoid based hybrid nanocomposites: A review. Saudi Pharm J 2020; 28:1719-1732. [PMID: 33424263 PMCID: PMC7783214 DOI: 10.1016/j.jsps.2020.10.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022] Open
Abstract
Natural bioflavonoids are an essential component of dietary supplements possessing antimicrobial properties. Many of the bioflavonoids have resulted in positive antitumor, anticancer, antibacterial, antifungal, anti-inflammatory properties, but the efficacy remains low due to toxicity at the molecular level whereas antiviral property limits to negative. The synergistic link between nanoscience and flavonoid chemistry enhances the epidemiological properties of flavonoid and also diminish the antimicrobial resistivity (AMR) by forming their hybrid nanocomposites. Nanochemistry uses various nanocomposite and nanomaterials for biosensing the flavonoids and their delivery as a drug. The quercetin flavonoid and its derivatives such as rutin, and myricetin are used for sensing and drug delivery. Quercetin with 15Carbon-5Hydroxyl chemical scaffold has been explored for a few decades for the development of hybrid nanocomposite and nanomaterial with metallic as well as organic nano co-composites. This quercetin flavonoid based hybrid nanocomposites seemed to show a significant effect on In vitro and some animal model processes along with attenuating lipid peroxidation, platelet aggregation, and capillary permeability actions. This review mainly focused on the hybrid nanoscience of quercetin bioflavonoid and its application in numerous biological, material fields with a future perspective.
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Affiliation(s)
- Biswajit Parhi
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
| | - Debasrita Bharatiya
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
| | - Sarat K Swain
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
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Unraveling the molecular mechanisms and the potential chemopreventive/therapeutic properties of natural compounds in melanoma. Semin Cancer Biol 2019; 59:266-282. [PMID: 31233829 DOI: 10.1016/j.semcancer.2019.06.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022]
Abstract
Melanoma is the most fatal form of skin cancer. Current therapeutic approaches include surgical resection, chemotherapy, targeted therapy and immunotherapy. However, these treatment strategies are associated with development of drug resistance and severe side effects. In recent years, natural compounds have also been extensively studied for their anti-melanoma effects, including tumor growth inhibition, apoptosis induction, angiogenesis and metastasis suppression and cancer stem cell elimination. Moreover, a considerable number of studies reported the synergistic activity of phytochemicals and standard anti-melanoma agents, as well as the enhanced effectiveness of their synthetic derivatives and novel formulations. However, clinical data confirming these promising effects in patients are still scanty. This review emphasizes the anti-tumor mechanisms and potential application of the most studied natural products for melanoma prevention and treatment.
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Patra A, Satpathy S, Shenoy AK, Bush JA, Kazi M, Hussain MD. Formulation and evaluation of mixed polymeric micelles of quercetin for treatment of breast, ovarian, and multidrug resistant cancers. Int J Nanomedicine 2018; 13:2869-2881. [PMID: 29844670 PMCID: PMC5961470 DOI: 10.2147/ijn.s153094] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Quercetin (QCT), a naturally occurring flavonoid has a wide array of pharmacological properties such as anticancer, antioxidant and anti-inflammatory activities. QCT has low solubility in water and poor bioavailability, which limited its use as a therapeutic molecule. Polymeric micelles (PMs) is a novel drug delivery system having characteristics like smaller particle size, higher drug loading, sustained drug release, high stability, increased cellular uptake and improved therapeutic potential. In the present study, we have formulated and characterized mixed PMs (MPMs) containing QCT for increasing its anticancer potential. Methods The MPMs were prepared by thin film hydration method, and their physicochemical properties were characterized. The in vitro anticancer activity of the MPMs were tested in breast (MCF-7 and MDA-MB-231, epithelial and metastatic cancer cell lines, respectively), and ovarian (SKOV-3 and NCI/ADR, epithelial and multi-drug resistant cell lines, respectively) cancer. Results The optimal MPM formulations were obtained from Pluronic polymers, P123 and P407 with molar ratio of 7:3 (A16); and P123, P407 and TPGS in the molar ratio of 7:2:1 (A22). The size of the particles before lyophilization (24.83±0.44 nm) and after lyophilisation (37.10±4.23 nm), drug loading (8.75±0.41%), and encapsulation efficiency (87.48±4.15%) for formulation A16 were determined. For formulation A22, the particle size before lyophilization, after lyophilization, drug loading and encapsulation efficiency were 26.37±2.19 nm, 45.88±13.80 nm, 9.01±0.11% and 90.07±1.09%, respectively. The MPMs exhibited sustained release of QCT compared to free QCT as demonstrated from in vitro release experiments. The solubility of QCT was markedly improved compared to pure QCT. The MPMs were highly stable in aqueous media as demonstrated by their low critical micelle concentration. The concentration which inhibited 50% growth (IC50) values of both micellar preparations in all the cancer cell lines were significantly less compared to free QCT. Conclusion Both the MPMs containing QCT could be used for effective delivery to different type of cancer and may be considered for further development.
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Affiliation(s)
- Arjun Patra
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA.,Institute of Pharmacy, Guru Ghasidas Vishwavidyalaya, Bilaspur (C.G.), India
| | - Swaha Satpathy
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA.,Institute of Pharmacy, Guru Ghasidas Vishwavidyalaya, Bilaspur (C.G.), India
| | - Anitha K Shenoy
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA
| | - Jason A Bush
- Department of Biology, California State University, Fresno, CA, USA
| | - Mohsin Kazi
- Kayyali Chair for Pharmaceutical Industries, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Delwar Hussain
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA
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12
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Thanh Nguyen H, Goycoolea FM. Chitosan/Cyclodextrin/TPP Nanoparticles Loaded with Quercetin as Novel Bacterial Quorum Sensing Inhibitors. Molecules 2017; 22:E1975. [PMID: 29140285 PMCID: PMC6150374 DOI: 10.3390/molecules22111975] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/12/2017] [Accepted: 11/13/2017] [Indexed: 12/21/2022] Open
Abstract
The widespread emergence of antibiotic-resistant bacteria has highlighted the urgent need of alternative therapeutic approaches for human and animal health. Targeting virulence factors that are controlled by bacterial quorum sensing (QS), seems a promising approach. The aims of this study were to generate novel nanoparticles (NPs) composed of chitosan (CS), sulfo-butyl-ether-β-cyclodextrin (Captisol®) and/or pentasodium tripolyphosphate using ionotropic gelation technique, and to evaluate their potential capacity to arrest QS in bacteria. The resulting NPs were in the size range of 250-400 nm with CS70/5 and 330-600 nm with CS70/20, had low polydispersity index (<0.25) and highly positive zeta potential ranging from ζ ~+31 to +40 mV. Quercetin, a hydrophobic model flavonoid, could be incorporated proportionally with increasing amounts of Captisol® in the NPs formualtion, without altering significantly its physicochemical properties. Elemental analysis and FTIR studies revealed that Captisol® and quercetin were effectively integrated into the NPs. These NPs were stable in M9 bacterial medium for 7 h at 37 °C. Further, NPs containing Captisol® seem to prolong the release of associated drug. Bioassays against an E. coli Top 10 QS biosensor revealed that CS70/5 NPs could inhibit QS up to 61.12%, while CS70/20 NPs exhibited high antibacterial effects up to 88.32%. These results suggested that the interaction between NPs and the bacterial membrane could enhance either anti-QS or anti-bacterial activities.
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Affiliation(s)
- Hao Thanh Nguyen
- Institute for Biology and Biotechnology of Plants, University of Münster, Schlossgarten 3, 48149 Münster, Germany.
- Department of Biology, Faculty of Biotechnology, Vietnam National University of Agriculture, Ngo Xuan Quang Street, Hanoi 100000, Vietnam.
| | - Francisco M Goycoolea
- Institute for Biology and Biotechnology of Plants, University of Münster, Schlossgarten 3, 48149 Münster, Germany.
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK.
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Pangeni R, Kang SW, Oak M, Park EY, Park JW. Oral delivery of quercetin in oil-in-water nanoemulsion: In vitro characterization and in vivo anti-obesity efficacy in mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.059] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Gansukh E, Muthu M, Paul D, Ethiraj G, Chun S, Gopal J. Nature nominee quercetin's anti-influenza combat strategy-Demonstrations and remonstrations. Rev Med Virol 2017; 27:e1930. [PMID: 31211498 DOI: 10.1002/rmv.1930] [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: 10/12/2016] [Revised: 02/21/2017] [Accepted: 03/13/2017] [Indexed: 12/14/2022]
Abstract
Nature's providences are rather the choicest remedies for human health and welfare. One such is quercetin, which is nature's nominee for cancer cure and recently demonstrated against influenza attack. Quercetin is highly recognized for its anticancer applications. This review emphasizes on yet another gift that this compound has to offer for mankind, which is none other than combating the deadly evasive influenza virus. The chemistry of this natural bioflavonoid and its derivatives and its modus operandi against influenza virus is consolidated into this review. The advancements and achievements made in the anti-influenza clinical history are also documented. Further, the challenges facing the progress of this compound to emerge as a predominant anti-influenza drug are discussed, and the future perspective for breaking its limitations through integration with nanoplatforms is envisioned.
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Affiliation(s)
- Enkhtaivan Gansukh
- Department of Bioresource and Food Science, Konkuk University, Seoul, South Korea
| | - Manikandan Muthu
- Department of Bioresource and Food Science, Konkuk University, Seoul, South Korea
| | - Diby Paul
- Environmental Microbiology, Department of Environmental Engineering, Konkuk University, Seoul, South Korea
| | - Gopal Ethiraj
- Department of Bioresource and Food Science, Konkuk University, Seoul, South Korea
| | - Sechul Chun
- Department of Bioresource and Food Science, Konkuk University, Seoul, South Korea
| | - Judy Gopal
- Department of Bioresource and Food Science, Konkuk University, Seoul, South Korea
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Wang W, Sun C, Mao L, Ma P, Liu F, Yang J, Gao Y. The biological activities, chemical stability, metabolism and delivery systems of quercetin: A review. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.07.004] [Citation(s) in RCA: 364] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Chen X, Zou L, Liu W, McClements DJ. Potential of Excipient Emulsions for Improving Quercetin Bioaccessibility and Antioxidant Activity: An in Vitro Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3653-3660. [PMID: 27136205 DOI: 10.1021/acs.jafc.6b01056] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The potential for excipient emulsions to enhance the bioaccessibility and antioxidant activity of quercetin was determined in this study. Oil-in-water excipient emulsions containing two levels (4 or 10%) of small lipid droplets (d < 250 nm) were prepared from a long-chain triglyceride (corn oil). The solubilization of quercetin by the excipient emulsions was faster than by bulk corn oil or bulk water, and the solubilization rate was higher at 100 °C than at 30 °C. The bioaccessibility of quercetin samples was determined using an in vitro gastrointestinal model, and the bioactivity of quercetin was determined using a rat feeding study. The excipient emulsions were more effective at enhancing quercetin bioaccessibility and rat plasma antioxidant activity than either bulk oil or bulk water. This effect was attributed to the rapid digestion of the long chain triglycerides when they were in an emulsified form, which led to the rapid production of mixed micelles capable of solubilizing, protecting, and transporting quercetin.
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Affiliation(s)
- Xing Chen
- State Key Laboratory of Food Science and Technology, Nanchang University , No. 235 Nanjing East Road, Nanchang 330047, Jiangxi China
| | - Liqiang Zou
- State Key Laboratory of Food Science and Technology, Nanchang University , No. 235 Nanjing East Road, Nanchang 330047, Jiangxi China
| | - Wei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University , No. 235 Nanjing East Road, Nanchang 330047, Jiangxi China
| | - David Julian McClements
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
- Department of Biochemistry, Faculty of Science, King Abdulaziz University , P.O. Box 80203, Jeddah 21589, Saudi Arabia
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El-Gogary RI, Rubio N, Wang JTW, Al-Jamal WT, Bourgognon M, Kafa H, Naeem M, Klippstein R, Abbate V, Leroux F, Bals S, Van Tendeloo G, Kamel AO, Awad GAS, Mortada ND, Al-Jamal KT. Polyethylene glycol conjugated polymeric nanocapsules for targeted delivery of quercetin to folate-expressing cancer cells in vitro and in vivo. ACS NANO 2014; 8:1384-401. [PMID: 24397686 DOI: 10.1021/nn405155b] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work we describe the formulation and characterization of chemically modified polymeric nanocapsules incorporating the anticancer drug, quercetin, for the passive and active targeting to tumors. Folic acid was conjugated to poly(lactide-co-glycolide) (PLGA) polymer to facilitate active targeting to cancer cells. Two different methods for the conjugation of PLGA to folic acid were employed utilizing polyethylene glycol (PEG) as a spacer. Characterization of the conjugates was performed using FTIR and (1)H NMR studies. The PEG and folic acid content was independent of the conjugation methodology employed. PEGylation has shown to reduce the size of the nanocapsule; moreover, zeta-potential was shown to be polymer-type dependent. Comparative studies on the cytotoxicity and cellular uptake of the different formulations by HeLa cells, in the presence and absence of excess folic acid, were carried out using MTT assay and Confocal Laser Scanning Microscopy, respectively. Both results confirmed the selective uptake and cytotoxicity of the folic acid targeted nanocapsules to the folate enriched cancer cells in a folate-dependent manner. Finally, the passive tumor accumulation and the active targeting of the nanocapsules to folate-expressing cells were confirmed upon intravenous administration in HeLa or IGROV-1 tumor-bearing mice. The developed nanocapsules provide a system for targeted delivery of a range of hydrophobic anticancer drugs in vivo.
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Affiliation(s)
- Riham I El-Gogary
- Ain Shams University , Department of Pharmaceutics and Industrial Pharmacy Faculty of Pharmacy, Ain Shams University , Khalifa El-Maamon Street, Abbasiya Square, Cairo 11566, Egypt
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Abstract
Food-derived flavonoid quercetin, widely distributed in onions, apples, and tea, is able to inhibit growth of various cancer cells indicating that this compound can be considered as a good candidate for anticancer therapy. Although the exact mechanism of this action is not thoroughly understood, behaving as antioxidant and/or prooxidant as well as modulating different intracellular signalling cascades may all play a certain role. Such inhibitory activity of quercetin has been shown to depend first of all on cell lines and cancer types; however, no comprehensive site-specific analysis of this effect has been published. In this review article, cytotoxicity constants of quercetin measured in various human malignant cell lines of different origin were compiled from literature and a clear cancer selective action was demonstrated. The most sensitive malignant sites for quercetin revealed to be cancers of blood, brain, lung, uterine, and salivary gland as well as melanoma whereas cytotoxic activity was higher in more aggressive cells compared to the slowly growing cells showing that the most harmful cells for the organism are probably targeted. More research is needed to overcome the issues of poor water solubility and relatively low bioavailability of quercetin as the major obstacles limiting its clinical use.
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Gang W, Jie WJ, Ping ZL, Ming DS, Ying LJ, Lei W, Fang Y. Liposomal quercetin: evaluating drug delivery in vitro and biodistribution in vivo. Expert Opin Drug Deliv 2013; 9:599-613. [PMID: 22607534 DOI: 10.1517/17425247.2012.679926] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The drug-loaded PEGylated nanomaterials have shown effective cell-killing in vitro, but to the best of authors' knowledge there have been no reports of successful drug delivery in vitro and in vivo using polyethyleneglycol-2000-distearoyl phosphatidyl ethanolamine (PEG2000-DSPE) nanomaterials loaded with unmodified drug molecules, such as quercetin (QUE). In this study, it remained an open question as to whether such formulations could prove effective in vitro and in vivo, and to study the distribution and clearance of PEG-DPSE-ylated lipid-based quercetin nanoliposomes (PEG2000-DPSE-QUE-NLs) as delivery vehicles for the anticancer drug in vitro and in vivo. RESEARCH DESIGN AND METHODS PEG-DPSE layers were attached to QUE-NLs, dispersed in aqueous media and characterized using TEM and HPLC/UV spectroscopy. Tumor cell killing efficacy was assessed in vitro using MTT and trypan blue exclusion assays, and the distribution and clearance pathways, as well as repeated administration in rats, were studied by HPLC spectroscopy. RESULTS PEG2000-DPSE-QUE-NLs were efficiently dispersed in aqueous media compared with controls, and PEGylated (PEG2000-DPSE) NLs were found to be effective drug delivery vehicles when simply loaded with QUE. The plasma QUE concentration decreased significantly (p < 0.05) after repeated administration of PEG2000-DSPE liposomal QUE. There was a slight ABC phenomenon with the PEG2000-DSPE-modified QUE liposomes. CONCLUSION The QUE/PEG2000-DPSE formulation was more effective than QUE in vitro on inhibiting the growth of glioma cancer cells. This work demonstrates that nanomaterials (PEG2000-DPSE) are effective drug delivery vehicles in vivo as tumor-targeted drug carriers.
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Affiliation(s)
- Wang Gang
- Hubei University of Medicine, Taihe Hospital, Department of Pharmacy, Hubei Province, People's Republic of China
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Siddikuzzaman, Berlin GVM. Evaluation of immunomodulatory and antitumor activity of alltransretinoic acid (ATRA) in solid tumor bearing mice. Immunopharmacol Immunotoxicol 2012; 35:110-8. [DOI: 10.3109/08923973.2012.712137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Date AA, Nagarsenker MS, Patere S, Dhawan V, Gude RP, Hassan PA, Aswal V, Steiniger F, Thamm J, Fahr A. Lecithin-Based Novel Cationic Nanocarriers (Leciplex) II: Improving Therapeutic Efficacy of Quercetin on Oral Administration. Mol Pharm 2011; 8:716-26. [DOI: 10.1021/mp100305h] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Abhijit A. Date
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Mangal S. Nagarsenker
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Shilpa Patere
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Vivek Dhawan
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - R. P. Gude
- Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai-410210, India
| | - P. A. Hassan
- Bhabha Atomic Research Center, Mumbai 400 085, India
| | - V. Aswal
- Bhabha Atomic Research Center, Mumbai 400 085, India
| | - Frank Steiniger
- Center for Electron Microscopy of the Medical Faculty, Friedrich-Schiller-University Jena, Ziegelmühlenweg 1, D-07740 Jena, Germany
| | - Jana Thamm
- Department of Pharmaceutical Technology, Friedrich-Schiller-University Jena, Lessingstr. 8, D-07743 Jena, Germany
| | - Alfred Fahr
- Department of Pharmaceutical Technology, Friedrich-Schiller-University Jena, Lessingstr. 8, D-07743 Jena, Germany
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Gibellini L, Pinti M, Nasi M, Montagna JP, De Biasi S, Roat E, Bertoncelli L, Cooper EL, Cossarizza A. Quercetin and cancer chemoprevention. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:591356. [PMID: 21792362 PMCID: PMC3136711 DOI: 10.1093/ecam/neq053] [Citation(s) in RCA: 238] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Accepted: 04/09/2010] [Indexed: 02/06/2023]
Abstract
Several molecules present in the diet, including flavonoids, can inhibit the growth of cancer cells with an ability to act as "chemopreventers". Their cancer-preventive effects have been attributed to various mechanisms, including the induction of cell-cycle arrest and/or apoptosis as well as the antioxidant functions. The antioxidant activity of chemopreventers has recently received a great interest, essentially because oxidative stress participates in the initiation and progression of different pathological conditions, including cancer. Since antioxidants are capable of preventing oxidative damage, the wide use of natural food-derived antioxidants is receiving greater attention as potential anti-carcinogens. Among flavonoids, quercetin (Qu) is considered an excellent free-radical scavenging antioxidant, even if such an activity strongly depends on the intracellular availability of reduced glutathione. Apart from antioxidant activity, Qu also exerts a direct, pro-apoptotic effect in tumor cells, and can indeed block the growth of several human cancer cell lines at different phases of the cell cycle. Both these effects have been documented in a wide variety of cellular models as well as in animal models. The high toxicity exerted by Qu on cancer cells perfectly matches with the almost total absence of any damages for normal, non-transformed cells. In this review we discuss the molecular mechanisms that are based on the biological effects of Qu, and their relevance for human health.
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Affiliation(s)
- Lara Gibellini
- Department of Biomedical Sciences, University of Modena and Reggio Emilia School of Medicine, 41125 Modena, Italy
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Payton F, Bose R, Alworth WL, Kumar AP, Ghosh R. 4-Methylcatechol-induced oxidative stress induces intrinsic apoptotic pathway in metastatic melanoma cells. Biochem Pharmacol 2011; 81:1211-8. [PMID: 21419106 DOI: 10.1016/j.bcp.2011.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 03/07/2011] [Accepted: 03/08/2011] [Indexed: 10/18/2022]
Abstract
There has been a steady rise in fatalities associated with thick melanomas (>4mm). Although understanding of the biology of the disease has improved, effective treatment strategies for patients with advanced metastatic melanoma remain elusive. Therefore, more intensive testing of agents with therapeutic potential are needed to improve survival of patients with metastatic malignant melanoma. We have tested the ability of 4-methylcatechol, a metabolite of quercetin; a naturally occurring compound that is commonly found in a variety of fruits for its potential as an anti-melanoma agent. Our results show that 4-methylcatechol inhibits proliferation of melanoma cells in culture while not affecting the growth of normal human epidermal melanocytes. Further, the ability of metastatic melanoma cells to form colonies on soft agar was also inhibited. 4-Methylcatechol caused the accumulation of cells in G2/M phase of the cell cycle and induced apoptosis. There was an increase in reactive oxygen species following treatment with 4-methylcatechol that led to apoptosis through the intrinsic mitochondrial pathway. Treatment also inhibited cell survival mediated by Akt, a key player in melanoma cell survival. Taken together our results suggest that 4-methylcatechol exhibits cytotoxicity towards metastatic malignant melanoma cells while sparing normal melanocytes and should be tested further as a potential drug candidate for malignant melanoma.
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Samanta SK, Bhattacharya K, Mandal C, Pal BC. Identification and quantification of the active component quercetin 3-O-rutinoside from Barringtonia racemosa, targets mitochondrial apoptotic pathway in acute lymphoblastic leukemia. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:639-648. [PMID: 20706898 DOI: 10.1080/10286020.2010.489040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Barringtonia racemosa has been used as a traditional medicine for the treatment of various diseases. The antitumor property of the seed extract of this plant in mice model promotes us to search for the active component present in the fruit extract. Quercetin 3-O-rutinoside (QOR) has been isolated from the fruits of this plant for the first time and quantified by HPLC method. The compound was identified by IR, mass, and NMR (1D, 2D) spectral data analysis. QOR showed dose- and time-dependent anti-proliferative activity in several leukemic cell lines with negligible effect on normal human peripheral blood mononuclear cell (PBMC). A representative T-lineage acute lymphoblastic leukemia cell line (MOLT-3) showed phosphatidyl serine externalization and DNA fragmentation, indicating QOR-induced programmed cell death. We established that QOR-induced apoptosis occurred preferentially on accumulation of cells in the sub-G(0) phase and genomic DNA fragmentation through the activation of mitochondria-dependent caspase cascade for the first time in T-lineage ALL cell line.
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Affiliation(s)
- Suman Kumar Samanta
- Department of Medicinal Chemistry, Indian Institute of Chemical Biology, A Unit of Council of Scientific and Industrial Research, Kolkata, India
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The phytoestrogen quercetin impairs steroidogenesis and angiogenesis in swine granulosa cells in vitro. J Biomed Biotechnol 2009; 2009:419891. [PMID: 19704917 PMCID: PMC2693932 DOI: 10.1155/2009/419891] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 04/07/2009] [Accepted: 04/22/2009] [Indexed: 11/17/2022] Open
Abstract
Experimental evidence documents that nutritional phytoestrogens may interact with reproductive functions but the exact mechanism of action is still controversial. Since quercetin is one of the main flavonoids in livestock nutrition, we evaluated its possible effects on cultured swine granulosa cell proliferation, steroidogenesis, and redox status. Moreover, since angiogenesis is essential for follicle development, the effect of the flavonoid on Vascular Endothelial Growth Factor output by granulosa cells was also taken into account. Our data evidence that quercetin does not affect granulosa cell growth while it inhibits progesterone production and modifies estradiol 17beta production in a dose-related manner. Additionally, the flavonoid interferes with the angiogenic process by inhibiting VEGF production as well as by altering redox status. Since steroidogenesis and angiogenesis are strictly involved in follicular development, these findings appear particularly relevant, pointing out a possible negative influence of quercetin on ovarian physiology. Therefore, the possible reproductive impact of the flavonoid should be carefully considered in animal nutrition.
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Walle T, Wen X, Walle UK. Improving metabolic stability of cancer chemoprotective polyphenols. Expert Opin Drug Metab Toxicol 2007; 3:379-88. [PMID: 17539745 DOI: 10.1517/17425255.3.3.379] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dietary flavonoids and other polyphenols have the potential to be developed as effective food supplements as well as drugs for the prevention, as well as treatment of, cancer and other disease conditions. However, their very poor oral bioavailability, mainly due to extensive conjugation by glucuronidation and sulfation, is a severe limiting factor. First, this review shows the use of a simple, commercially available model system, the human hepatic S9 fraction, by which metabolic stability can be assessed effectively and accurately. Second, permethylation of the polyphenols effectively blocks the metabolic conjugation reactions, thereby dramatically increasing both metabolic stability and intestinal absorption, while maintaining or even increasing the biologic activities. Thus, permethylated polyphenols may have a future as chemoprotective agents.
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Affiliation(s)
- Thomas Walle
- Medical University of South Carolina, Department of Cell and Molecular Pharmacology and Experimental Therapeutics, 173 Ashley Avenue, Charleston, SC 29425, USA.
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