1
|
Meral G, Aslan ES, Burkay N, Alper Acar EG, Karagöz MF, Özkaya M, Sahin E, Alp MY. Importance of Using Epigenetic Nutrition and Supplements Based on Nutrigenetic Tests in Personalized Medicine. Cureus 2024; 16:e66959. [PMID: 39148948 PMCID: PMC11326715 DOI: 10.7759/cureus.66959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2024] [Indexed: 08/17/2024] Open
Abstract
BACKGROUND Nutrigenetics explores how genetic variations influence an individual's responses to nutrients, enabling personalized nutrition. As dietary supplements gain popularity, understanding genetic factors in their metabolism and effectiveness is crucial for optimal health outcomes. This study examines the role of genetic differences in the metabolism and effects of nutraceuticals, underscoring the significance of personalized nutrition within precision health. It aims to reveal how individual genetic profiles influence responses to dietary supplements, highlighting the value of nutrigenetics in optimizing health interventions. The study explores how genetic variations affect the absorption and effects of nutraceuticals, focusing on personalized supplement choices based on nutrigenetics. METHODS Sixteen patients from an Epigenetic Coaching clinic who were using supplements such as quercetin, curcumin, green tea, and sulforaphane and reporting side effects were studied. Their clinical outcomes were analyzed in relation to their supplement choices and genetic backgrounds. The study involved five women and 11 men, including eight with autism and others with conditions like Hashimoto's thyroiditis (HT) disease and joint pain. RESULTS In the study, it was observed that removing sulforaphane and sulfur-rich supplements from the diet of five patients reduced agitation. Removing sulforaphane and sulfur-rich supplements from the diet of four patients reduced clinical symptoms. Green tea caused discomfort in two patients. Responses to quercetin showed clinical differences in two patients. Anxiety and hyperactivity increased in three patients who took curcumin. Conclusion This study highlights the importance of considering individual genetic profiles when recommending dietary supplements. The findings suggest that personalized nutrition, guided by nutrigenetic insights, can enhance the efficacy and safety of nutraceutical interventions. Tailoring supplement choices based on genetic information can lead to better health outcomes and reduced adverse effects, emphasizing the need for integrating genetic testing into nutritional planning and healthcare practices.
Collapse
Affiliation(s)
- Gulsen Meral
- Molecular Biology and Genetics, Pediatrics, Epigenetic Coaching, Norwich, GBR
- Molecular Biology and Genetics, Pediatrics, Biruni University, Istanbul, TUR
| | - Elif S Aslan
- Molecular Biology and Genetics, Biruni University, Istanbul, TUR
| | | | | | | | - Merve Özkaya
- Nutrition and Dietetics, Ankara University, Ankara, TUR
| | - Esra Sahin
- Nutrition and Dietetics, Istinye University, Istanbul, TUR
| | - Muhammed Yunus Alp
- Medical Genetics, Genoks Genetics Center, Ankara, TUR
- Medical Genetics, Epigenetic Coaching, Norwich, GBR
| |
Collapse
|
2
|
Calabrese EJ, Hayes AW, Pressman P, Dhawan G, Kapoor R, Agathokleous E, Calabrese V. Quercetin induces its chemoprotective effects via hormesis. Food Chem Toxicol 2024; 184:114419. [PMID: 38142767 DOI: 10.1016/j.fct.2023.114419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
Quercetin is a polyphenol present in numerous fruits and vegetables and therefore widely consumed by humans with average daily dietary intakes of 10-20 mg/day. It is also a popular dietary supplement of 250-1000 mg/day. However, despite the widespread consumer interest in quercetin, due to its possible chemopreventive properties, the extensively studied quercetin presents a highly diverse and complex array of biological effects. Consequently, the present paper provides the first assessment of quercetin-induced hormetic concentration/dose responses, their quantitative features and mechanistic foundations, and their biological, biomedical, clinical, and public health implications. The findings indicate that quercetin-induced hormetic dose responses are widespread, being independent of biological model, cell type, and endpoint. These findings have the potential to enlighten future experimental studies with quercetin especially with respect to study design parameters and may also affect the appraisal of possible public health benefits and risks associated with highly diverse consumer consumption practices.
Collapse
Affiliation(s)
- Edward J Calabrese
- School of Public Health and Health Sciences, Department of Environmental Health, Morrill I-N344, University of Massachusetts, Amherst, MA, 01003, USA.
| | - A Wallace Hayes
- Center for Environmental Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, FL, USA.
| | - Peter Pressman
- University of Maine, 5728 Fernald Hall, Room 201, Orono, ME, 04469, USA.
| | - Gaurav Dhawan
- Sri Guru Ram Das (SGRD), University of Health Sciences, Amritsar, India.
| | - Rachna Kapoor
- Saint Francis Hospital and Medical Center, Hartford, CT, USA.
| | - Evgenios Agathokleous
- School of Ecology and Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine University of Catania, Via Santa Sofia 97, Catania, 95123, Italy.
| |
Collapse
|
3
|
Shala AL, Arduino I, Salihu MB, Denora N. Quercetin and Its Nano-Formulations for Brain Tumor Therapy—Current Developments and Future Perspectives for Paediatric Studies. Pharmaceutics 2023; 15:pharmaceutics15030963. [PMID: 36986827 PMCID: PMC10057501 DOI: 10.3390/pharmaceutics15030963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
The development of efficient treatments for tumors affecting the central nervous system (CNS) remains an open challenge. Particularly, gliomas are the most malignant and lethal form of brain tumors in adults, causing death in patients just over 6 months after diagnosis without treatment. The current treatment protocol consists of surgery, followed using synthetic drugs and radiation. However, the efficacy of these protocols is associated with side effects, poor prognosis and with a median survival of fewer than two years. Recently, many studies were focused on applying plant-derived products to manage various diseases, including brain cancers. Quercetin is a bioactive compound derived from various fruits and vegetables (asparagus, apples, berries, cherries, onions and red leaf lettuce). Numerous in vivo and in vitro studies highlighted that quercetin through multitargeted molecular mechanisms (apoptosis, necrosis, anti-proliferative activity and suppression of tumor invasion and migration) effectively reduces the progression of tumor cells. This review aims to summarize current developments and recent advances of quercetin’s anticancer potential in brain tumors. Since all reported studies demonstrating the anti-cancer potential of quercetin were conducted using adult models, it is suggested to expand further research in the field of paediatrics. This could offer new perspectives on brain cancer treatment for paediatric patients.
Collapse
Affiliation(s)
- Aida Loshaj Shala
- Department of Drug Analysis and Pharmaceutical Technology, Faculty of Medicine, University of Prishtina, 10000 Prishtina, Kosovo
| | - Ilaria Arduino
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari “Aldo Moro”, Orabona St. 4, 70125 Bari, Italy
| | - Mimoza Basholli Salihu
- Department of Drug Analysis and Pharmaceutical Technology, Faculty of Medicine, University of Prishtina, 10000 Prishtina, Kosovo
| | - Nunzio Denora
- Department of Pharmacy—Pharmaceutical Sciences, University of Bari “Aldo Moro”, Orabona St. 4, 70125 Bari, Italy
- Correspondence:
| |
Collapse
|
4
|
Lin W, Zhao Y, Liu C, Yan Y, Ou Q. Quercetin supplementation and muscular atrophy in animal models: A systematic review and meta-analysis. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2127764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Weiqun Lin
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Yongyi Zhao
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Cuibing Liu
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Yinghua Yan
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| |
Collapse
|
5
|
Mashaly MA, Saleh IG, Ashour AA, Mansour AM. The potential role of febrile condition in reversing the hepatoprotective effects of quercetin in the livers of LPS-presensitized mice. Life Sci 2022; 302:120647. [PMID: 35588863 DOI: 10.1016/j.lfs.2022.120647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 11/20/2022]
Abstract
AIMS Consumption of nutraceuticals without enough data regarding their interactions has raised safety concerns. Importantly, consumption of some natural-products in health-compromised conditions has caused liver injury due to the evolved pro-oxidant load. This study evaluates the safety of quercetin (QUR), as an extensively-used flavonoid owing to its antioxidant and hepatoprotective activities, in normal- and lipopolysaccharides (LPS)-primed livers, and to investigate the influence of the LPS-induced mild inflammatory/febrile condition on QUR effects. MAIN METHODS For liver priming, a non-injurious LPS dose that mediates limited inflammation/mild fever was chosen. Selection of QUR dose/duration of treatment, for a coherent combination-regimen, was also adopted. Single LPS i.p injection (1.5 mg/kg)/oral QUR (20 mg/kg/day, IG) for 5-days was the optimal regimen for the combination group. On day-6, serum ALT/AST/ALP levels were measured, as liver-damage biomarkers. Hepatic; MDA/GSH were determined, as oxidative-stress measures, Bcl-2/cleaved-caspase-3 were assessed as apoptosis biomarkers, IL-6 expression/NF-κB/Nrf-2 immunoreactivities were evaluated as regulators for inflammation. KEY FINDINGS Exaggerated hepatic injury was seen upon QUR treatment in LPS-presensitized mice; as evidenced by liver histopathological degeneration, which was confirmed by biochemical elevations of serum AST/ALT/ALP, along with oxidant-burden increase (↑MDA/↓GSH) and molecular augmentation of inflammation (NF-κB/IL-6 activation) that led to enhancement of proapoptotic signaling (caspase-3 activation/Bcl-2 inhibition). Such events were accompanied by potentiation of endogenous anti-inflammatory/antioxidant response (↑ hepatic Nrf-2). SIGNIFICANCE The study highlights caution when QUR is consumed in health-compromised conditions, by revealing the role of fever/mild inflammation in enhancing liver toxicity upon QUR utilization, which was not apparent with moderate consumption of QUR-alone.
Collapse
Affiliation(s)
- Moamen Adel Mashaly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ibrahim Ghalib Saleh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ahmed Amine Ashour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Ahmed Mohamed Mansour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| |
Collapse
|
6
|
Galván-Portillo M, Vázquez-Salas RA, Hernández-Pérez JG, Blanco-Muñoz J, López-Carrillo L, Torres-Sánchez L. Dietary flavonoid patterns and prostate cancer: evidence from a Mexican population-based case-control study. Br J Nutr 2021; 127:1-9. [PMID: 34256878 DOI: 10.1017/s0007114521002646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Flavonoids are a broad group of bioactive compounds with anticarcinogenic effects on the prostate that have been scarcely evaluated in Latin American populations. Our objective was to evaluate the association between dietary patterns of flavonoid intake and prostate cancer (PC) in a population-based case-control study carried out in Mexico City. Based on a semi-quantitative FFQ with a frame reference of 3 years before diagnosis or interview, we used an updated database for estimating the daily intake (mg/d) of flavones, flavonols and flavanols for 395 confirmed incident PC cases and 797 population controls matched by age (± 5 years). Histological PC differentiation was evaluated using the Gleason score at diagnosis. Flavonoid dietary intake patterns (FDIP) were determined through principal component analysis, and their association with PC was estimated using logistic regression models. Three FDIP were identified: gallate pattern (GP) characterised by (-)-epicatechin-3-O-gallate, (-)-epigallocatechin-3-O-gallate and (+)-gallocatechin; luteolin pattern (LP) characterised by luteolin and (-)-epigallocatechin-3-O-gallate; and a mixed pattern (MP) that included (+)-catechin, (-)-epicatechin and quercetin. A higher GP (ORT3 v.T1 = 0·47; 95 % CI 0·33, 0·66) and LP intake (ORT3 v. T1 = 0·39; 95 % CI 0·27, 0·59) were associated with a decreased PC likelihood. In contrast, a higher MP intake (ORT3 v. T1 = 2·32; 95 % CI 1·67, 3·23) increased PC likelihood. The possible differential and synergistic anticarcinogenic role of flavonoid compounds in PC deserves further study.
Collapse
Affiliation(s)
- Marcia Galván-Portillo
- Center for Population Health Research, National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, CP 62100Cuernavaca, Morelos, Mexico
| | - Ruth Argelia Vázquez-Salas
- National Council for Science and Technology (CONACYT), National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera. CP 62100Cuernavaca, Morelos, Mexico
| | - Jesús Gibran Hernández-Pérez
- Center for Population Health Research, National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, CP 62100Cuernavaca, Morelos, Mexico
| | - Julia Blanco-Muñoz
- Center for Population Health Research, National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, CP 62100Cuernavaca, Morelos, Mexico
| | - Lizbeth López-Carrillo
- Center for Population Health Research, National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, CP 62100Cuernavaca, Morelos, Mexico
| | - Luisa Torres-Sánchez
- Center for Population Health Research, National Institute of Public Health of Mexico, Av. Universidad No. 655, Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, CP 62100Cuernavaca, Morelos, Mexico
| |
Collapse
|
7
|
Saavedra-Leos MZ, Jordan-Alejandre E, López-Camarillo C, Pozos-Guillen A, Leyva-Porras C, Silva-Cázares MB. Nanomaterial Complexes Enriched With Natural Compounds Used in Cancer Therapies: A Perspective for Clinical Application. Front Oncol 2021; 11:664380. [PMID: 33869067 PMCID: PMC8047625 DOI: 10.3389/fonc.2021.664380] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/15/2021] [Indexed: 12/14/2022] Open
Abstract
Resveratrol and quercetin are natural compounds contained in many foods and beverages. Reports indicate implications for the health of the general population; on the other hand the use of both compounds has interesting results for the treatment of many diseases as cardiovascular affections, diabetes, Alzheimer's disease, viral and bacterial infections among others. Based on their capacities described as anti-inflammatory, antioxidant, and anti-aging, resveratrol and quercetin showed antiproliferative and anticancer activity specifically in maligned cells. These molecular characteristics trigger the pharmacological repurposing of both compounds and improved its research for treating different cancer types with interesting results at in vitro, in vivo, and clinical trial studies. Meanwhile, the development of different systems of drug release in specific sites as nanomaterials and specifically the nanoparticles, potentiates the personal treatment perspective in conjunct with the actual cancer therapies; regularly invasive and aggressive, the perspective of nanomedicine as higher effective and lower invasive has gained popularity. Knowledge of molecular interactions of resveratrol and quercetin in diseases confirms the evidence of multiple benefits, while the multiple analyses suggested a positive response for the treatment and diagnostics of cancer in different stages, including at metastatic stage. The present work reviews the reports related to the impact of resveratrol and quercetin in cancer treatment and its effects when the antioxidants are encapsulated in different nanoparticle systems, which improve the prospects of cancer treatment.
Collapse
Affiliation(s)
| | | | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Mexico City, Mexico
| | - Amaury Pozos-Guillen
- Laboratorio de Ciencias Básicas, Facultad de Estomatología, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico
| | - César Leyva-Porras
- Laboratorio Nacional de Nanotecnología, Centro de Investigación en Materiales Avanzados S.C. (CIMAV), Chihuahua, Mexico
| | | |
Collapse
|
8
|
Banjare L, Verma SK, Jain AK, Thareja S. Design and pharmacophoric identification of flavonoid scaffold‐based aromatase inhibitors. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Laxmi Banjare
- School of Pharmaceutical SciencesGuru Ghasidas Central University Bilaspur Chhattisgarh India
| | - Sant Kumar Verma
- School of Pharmaceutical SciencesGuru Ghasidas Central University Bilaspur Chhattisgarh India
| | - Akhlesh Kumar Jain
- School of Pharmaceutical SciencesGuru Ghasidas Central University Bilaspur Chhattisgarh India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural ProductsCentral University of Punjab Bathinda Punjab India
| |
Collapse
|
9
|
Mantzorou M, Zarros A, Vasios G, Theocharis S, Pavlidou E, Giaginis C. Cranberry: A Promising Natural Source of Potential Nutraceuticals with Anticancer Activity. Anticancer Agents Med Chem 2019; 19:1672-1686. [PMID: 31272361 DOI: 10.2174/1871520619666190704163301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/23/2019] [Accepted: 05/27/2019] [Indexed: 12/12/2022]
Abstract
Studies have shown that cranberry and its components may exert anticancer properties. The present study aims to critically summarise the existing experimental studies evaluating the potential effects of cranberry on cancer prevention and treatment. PubMed database was searched to identify relevant studies. Current in vitro studies have indicated that cranberry and/or its components may act as chemopreventive agents, diminishing the risk for cancer by inhibiting cells oxidation and inflammatory-related processes, while they may also exert chemotherapeutic effects by inhibiting cell proliferation and angiogenesis, inducing cell apoptosis and attenuating the ability of tumour cells to invade and metastasis. Limited in vivo studies have further documented potential anticancer activity. Cranberry could be considered as a conglomeration of potential effective anticancer druglike compounds.
Collapse
Affiliation(s)
- Maria Mantzorou
- Department of Food Science and Nutrition, University of the Aegean, Lemnos, Greece
| | - Apostolos Zarros
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Georgios Vasios
- Department of Food Science and Nutrition, University of the Aegean, Lemnos, Greece
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, University of Athens, Athens, Greece
| | - Eleni Pavlidou
- Department of Food Science and Nutrition, University of the Aegean, Lemnos, Greece
| | | |
Collapse
|
10
|
Determination and analysis of agonist and antagonist potential of naturally occurring flavonoids for estrogen receptor (ERα) by various parameters and molecular modelling approach. Sci Rep 2019; 9:7450. [PMID: 31092862 PMCID: PMC6520524 DOI: 10.1038/s41598-019-43768-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 04/17/2019] [Indexed: 12/29/2022] Open
Abstract
Most estrogen receptor α (ERα) ligands target the ligand binding domain (LBD). Agonist 17β-estradiol (E2) and tamoxifen (TM, known SERM), bind to the same site within the LBD. However, structures of ligand-bound complexes show that E2 and TM induce different conformations of helix 12 (H12). During the molecular modelling studies of some naturally occurring flavonoids such as quercetin, luteolin, myricetin, kaempferol, naringin, hesperidin, galangin, baicalein and epicatechin with human ERα (3ERT and 1GWR), we observed that most of the ligands bound to the active site pocket of both 3ERT and 1GWR. The docking scores, interaction analyses, and conformation of H12 provided the data to support for the estrogenic or antiestrogenic potential of these flavonoids to a limited degree. Explicit molecular dynamics for 50 ns was performed to identify the stability and compatibility pattern of protein-ligand complex and RMSD were obtained. Baicalein, epicatechin, and kaempferol with 1GWR complex showed similar RMSD trend with minor deviations in the protein backbone RMSD against 1GWR-E2 complex that provided clear indications that ligands were stable throughout the explicit molecular simulations in the protein and outcome of naringin-3ERT complex had an upward trend but stable throughout the simulations and all molecular dynamics showed stability with less than overall 1 Å deviation throughout the simulations. To examine their estrogenic or antiestrogenic potential, we studied the effect of the flavonoids on viability, progesterone receptor expression and 3xERE/3XERRE-driven reporter gene expression in ERα positive and estrogen responsive MCF-7 breast cancer cells. Epicatechin, myricetin, and kaempferol showed estrogenic potential at 5 µM concentration.
Collapse
|
11
|
Kerimi A, Williamson G. Differential Impact of Flavonoids on Redox Modulation, Bioenergetics, and Cell Signaling in Normal and Tumor Cells: A Comprehensive Review. Antioxid Redox Signal 2018; 29:1633-1659. [PMID: 28826224 PMCID: PMC6207159 DOI: 10.1089/ars.2017.7086] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
SIGNIFICANCE Flavonoids can interact with multiple molecular targets to elicit their cellular effects, leading to changes in signal transduction, gene expression, and/or metabolism, which can, subsequently, affect the entire cell and organism. Immortalized cell lines, derived from tumors, are routinely employed as a surrogate for mechanistic studies, with the results extrapolated to tissues in vivo. Recent Advances: We review the activities of selected flavonoids on cultured tumor cells derived from various tissues in comparison to corresponding primary cells or tissues in vivo, mainly using quercetin and flavanols (epicatechin and (-)-epigallocatechin gallate) as exemplars. Several studies have indicated that flavonoids could retard cancer progression in vivo in animal models as well as in tumor cell models. CRITICAL ISSUES Extrapolation from in vitro and animal models to humans is not straightforward given both the extensive conjugation and complex microbiota-dependent metabolism of flavonoids after consumption, as well as the heterogeneous metabolism of different tumors. FUTURE DIRECTIONS Comparison of data from studies on primary cells or in vivo are essential not only to validate results obtained from cultured cell models, but also to highlight whether any differences may be further exploited in the clinical setting for chemoprevention. Tumor cell models can provide a useful mechanistic tool to study the effects of flavonoids, provided that the limitations of each model are understood and taken into account in interpretation of the data.
Collapse
Affiliation(s)
- Asimina Kerimi
- School of Food Science and Nutrition, University of Leeds , Leeds, United Kingdom
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds , Leeds, United Kingdom
| |
Collapse
|
12
|
Tamoxifen synergizes with 4-(E)-{(4-hydroxyphenylimino)-methylbenzene, 1,2-diol} and 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol}, novel azaresveratrol analogs, in inhibiting the proliferation of breast cancer cells. Oncotarget 2018; 7:51747-51762. [PMID: 27351134 PMCID: PMC5239512 DOI: 10.18632/oncotarget.10106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 05/22/2016] [Indexed: 12/18/2022] Open
Abstract
We have recently shown that 4-(E)-{(4-hydroxyphenylimino)-methylbenzene, 1,2-diol} (HPIMBD) and 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol} (TIMBD), novel analogs of resveratrol (Res), selectively inhibited the proliferation of breast cancer cells. In the current study, we tested HPIMBD and TIMBD individually in combination with tamoxifen (Tam) for inhibition of growth of breast cancer cells. Tamoxifen was first tested on non-neoplastic breast epithelial cell lines and its dose that does not inhibit their growth was determined. A combination of this low dose of Tam with either of the Res analogs HPIMBD or TIMBD, resulted in synergistic inhibition of proliferation of breast cancer cells. Both estrogen receptor (ER)-positive and negative breast cancer cell lines responded to the combination. The combination resulted in a substantial decrease in IC50 values of Res analogs in all breast cancer cell lines tested. Mechanistic studies showed a synergistic increase in apoptosis and autophagy genes (beclin-1 and LC3BII/I) with the combination in ER-negative MDA-MB-231 cells. In ER-positive MCF-7 and T47D cells, the mechanism of synergy was found to be inhibition of expression of ERα and oncogene c-Myc. The combination treatment had a synergistic effect in inhibiting the colony forming and spheroid forming ability of cancer cells. Taken together, our findings indicate that a combination of Tam and Res analogs HPIMBD or TIMBD represents a novel approach to enhancing the use of Tam in therapy for breast cancers. Considering the urgent need for novel therapeutic strategies to treat ER-negative breast cancers and overcoming resistance in ER-positive cancers, this combinatorial approach is worthy of continued investigation.
Collapse
|
13
|
Shull JD, Dennison KL, Chack AC, Trentham-Dietz A. Rat models of 17β-estradiol-induced mammary cancer reveal novel insights into breast cancer etiology and prevention. Physiol Genomics 2018; 50:215-234. [PMID: 29373076 DOI: 10.1152/physiolgenomics.00105.2017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Numerous laboratory and epidemiologic studies strongly implicate endogenous and exogenous estrogens in the etiology of breast cancer. Data summarized herein suggest that the ACI rat model of 17β-estradiol (E2)-induced mammary cancer is unique among rodent models in the extent to which it faithfully reflects the etiology and biology of luminal types of breast cancer, which together constitute ~70% of all breast cancers. E2 drives cancer development in this model through mechanisms that are largely dependent upon estrogen receptors and require progesterone and its receptors. Moreover, mammary cancer development appears to be associated with generation of oxidative stress and can be modified by multiple dietary factors, several of which may attenuate the actions of reactive oxygen species. Studies of susceptible ACI rats and resistant COP or BN rats provide novel insights into the genetic bases of susceptibility and the biological processes regulated by genetic determinants of susceptibility. This review summarizes research progress resulting from use of these physiologically relevant rat models to advance understanding of breast cancer etiology and prevention.
Collapse
Affiliation(s)
- James D Shull
- McArdle Laboratory for Cancer Research, Department of Oncology, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin.,University of Wisconsin Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin
| | - Kirsten L Dennison
- McArdle Laboratory for Cancer Research, Department of Oncology, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin
| | - Aaron C Chack
- McArdle Laboratory for Cancer Research, Department of Oncology, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin
| | - Amy Trentham-Dietz
- Department of Population Health Sciences, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin.,University of Wisconsin Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin
| |
Collapse
|
14
|
Andres S, Pevny S, Ziegenhagen R, Bakhiya N, Schäfer B, Hirsch-Ernst KI, Lampen A. Safety Aspects of the Use of Quercetin as a Dietary Supplement. Mol Nutr Food Res 2017; 62. [PMID: 29127724 DOI: 10.1002/mnfr.201700447] [Citation(s) in RCA: 287] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/13/2017] [Indexed: 12/13/2022]
Abstract
The flavonoid quercetin is frequently found in low amounts as a secondary plant metabolite in fruits and vegetables. Isolated quercetin is also marketed as a dietary supplement, mostly as the free quercetin aglycone, and frequently in daily doses of up to 1000 mg d-1 exceeding usual dietary intake levels. The present review is dedicated to safety aspects of isolated quercetin used as single compound in dietary supplements. Among the numerous published human intervention studies, adverse effects following supplemental quercetin intake have been rarely reported and any such effects were mild in nature. Published adequate scientific data for safety assessment in regard to the long-term use (>12 weeks) of high supplemental quercetin doses (≥1000 mg) are currently not available. Based on animal studies involving oral quercetin application some possible critical safety aspects could be identified such as the potential of quercetin to enhance nephrotoxic effects in the predamaged kidney or to promote tumor development especially in estrogen-dependent cancer. Furthermore, animal and human studies with single time or short-term supplemental quercetin application revealed interactions between quercetin and certain drugs leading to altered drug bioavailability. Based on these results, some potential risk groups are discussed in the present review.
Collapse
Affiliation(s)
- Susanne Andres
- Department of Food Safety, Former employee of the German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Sophie Pevny
- Department of Food Safety, Former employee of the German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Rainer Ziegenhagen
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Nadiya Bakhiya
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Bernd Schäfer
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | | | - Alfonso Lampen
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| |
Collapse
|
15
|
Chatterjee A, Ronghe A, Padhye SB, Spade DA, Bhat NK, Bhat HK. Antioxidant activities of novel resveratrol analogs in breast cancer. J Biochem Mol Toxicol 2017; 32. [PMID: 28960787 DOI: 10.1002/jbt.21925] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/06/2017] [Accepted: 03/12/2017] [Indexed: 01/02/2023]
Abstract
The objective of the present study was to characterize the role of novel resveratrol (Res) analogs: 4-(E)-{(4-hydroxyphenylimino)-methylbenzene, 1, 2-diol} (HPIMBD) and 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol} (TIMBD) as potent antioxidants against breast cancer. Non-neoplastic breast epithelial cell lines MCF-10A and MCF-10F were treated with 17β-estradiol (E2), Res, HPIMBD, and TIMBD for up to 72 h. mRNA and protein levels of antioxidant genes, superoxide dismutase 3 (SOD3) and N-quinoneoxidoreductase-1 (NQO1) and transcription factors, nuclear factor erythroid 2-related factor (Nrf) 1, 2 and 3 were quantified after the above treatments. Generation of reactive oxygen species (ROS) was measured by CM-H2-DCFDA and oxidative-DNA damage was determined by measuring 8-hydroxy-2-deoxyguanosine (8-OHdG). HPIMBD and TIMBD scavenged cellular ROS production, attenuated oxidative DNA damage, increased mRNA and protein expression levels of SOD3 and NQO1 and activated Nrf signaling pathway. Our studies demonstrate that HPIMBD and TIMBD have the potential as novel antioxidants to prevent development of breast cancer.
Collapse
Affiliation(s)
- Anwesha Chatterjee
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - Amruta Ronghe
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - Subhash B Padhye
- Department of Chemistry, Interdisciplinary Science and Technology Research Academy, Abeda Inamdar Senior College, University of Pune, India
| | - David A Spade
- Department of Mathematics and Statistics, University of Missouri-Kansas City, Kansas City, MO, 64110, USA
| | - Nimee K Bhat
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - Hari K Bhat
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| |
Collapse
|
16
|
Bak MJ, Das Gupta S, Wahler J, Suh N. Role of dietary bioactive natural products in estrogen receptor-positive breast cancer. Semin Cancer Biol 2016; 40-41:170-191. [PMID: 27016037 DOI: 10.1016/j.semcancer.2016.03.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/16/2016] [Accepted: 03/20/2016] [Indexed: 12/20/2022]
Abstract
Estrogen receptor (ER)-positive breast cancer, including luminal-A and -B, is the most common type of breast cancer. Extended exposure to estrogen is associated with an increased risk of breast cancer. Both ER-dependent and ER-independent mechanisms have been implicated in estrogen-mediated carcinogenesis. The ER-dependent pathway involves cell growth and proliferation triggered by the binding of estrogen to the ER. The ER-independent mechanisms depend on the metabolism of estrogen to generate genotoxic metabolites, free radicals and reactive oxygen species to induce breast cancer. A better understanding of the mechanisms that drive ER-positive breast cancer will help optimize targeted approaches to prevent or treat breast cancer. A growing emphasis is being placed on alternative medicine and dietary approaches toward the prevention and treatment of breast cancer. Many natural products and bioactive compounds found in foods have been shown to inhibit breast carcinogenesis via inhibition of estrogen induced oxidative stress as well as ER signaling. This review summarizes the role of bioactive natural products that are involved in the prevention and treatment of estrogen-related and ER-positive breast cancer.
Collapse
Affiliation(s)
- Min Ji Bak
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Soumyasri Das Gupta
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Joseph Wahler
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA.
| |
Collapse
|
17
|
4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol}, 1 a novel resveratrol analog, differentially regulates estrogen receptors α and β in breast cancer cells. Toxicol Appl Pharmacol 2016; 301:1-13. [PMID: 26970359 DOI: 10.1016/j.taap.2016.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 02/27/2016] [Accepted: 03/08/2016] [Indexed: 01/18/2023]
Abstract
Breast cancer is a public health concern worldwide. Prolonged exposure to estrogens has been implicated in the development of breast neoplasms. Epidemiologic and experimental evidence suggest a chemopreventive role of phytoestrogens in breast cancers. Resveratrol, a naturally occurring phytoestrogen, has been shown to have potent anti-cancer properties. However, poor efficacy and bioavailability have prevented the use of resveratrol in clinics. In order to address these problems, we have synthesized a combinatorial library of azaresveratrol analogs and tested them for their ability to inhibit the proliferation of breast cancer cells. We have recently shown that 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol} (TIMBD), has better anti-cancer properties than resveratrol and any other resveratrol analog we have synthesized so far. The objective of this study was to investigate the regulation of estrogen receptors (ERs) α and β by TIMBD in breast cancer cell lines. We demonstrate that TIMBD significantly induces the mRNA and protein expression levels of ERβ and inhibits that of ERα. TIMBD inhibits mRNA and protein expression levels of oncogene c-Myc, and cell cycle protein cyclin D1, which are important regulators of cellular proliferation. TIMBD significantly induces protein expression levels of tumor suppressor genes p53 and p21 in MCF-7 cells. TIMBD inhibits c-Myc in an ERβ-dependent fashion in MCF-10A and ERβ1-transfected MDA-MB-231 cells, suggesting regulation of ERs as an important upstream mechanism of this analog. ERβ plays a partial role in inhibition of proliferation by TIMBD while ERα overexpression does not significantly affect TIMBD's inhibition.
Collapse
|
18
|
Schaefer MH, Serrano L. Cell type-specific properties and environment shape tissue specificity of cancer genes. Sci Rep 2016; 6:20707. [PMID: 26856619 PMCID: PMC4746590 DOI: 10.1038/srep20707] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/11/2016] [Indexed: 12/21/2022] Open
Abstract
One of the biggest mysteries in cancer research remains why mutations in certain genes cause cancer only at specific sites in the human body. The poor correlation between the expression level of a cancer gene and the tissues in which it causes malignant transformations raises the question of which factors determine the tissue-specific effects of a mutation. Here, we explore why some cancer genes are associated only with few different cancer types (i.e., are specific), while others are found mutated in a large number of different types of cancer (i.e., are general). We do so by contrasting cellular functions of specific-cancer genes with those of general ones to identify properties that determine where in the body a gene mutation is causing malignant transformations. We identified different groups of cancer genes that did not behave as expected (i.e., DNA repair genes being tissue specific, immune response genes showing a bimodal specificity function or strong association of generally expressed genes to particular cancers). Analysis of these three groups demonstrates the importance of environmental impact for understanding why certain cancer genes are only involved in the development of some cancer types but are rarely found mutated in other types of cancer.
Collapse
Affiliation(s)
- Martin H Schaefer
- EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, Barcelona, Spain
| | - Luis Serrano
- EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Dr. Aiguader 88, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, Barcelona, Spain
| |
Collapse
|
19
|
Mocanu MM, Nagy P, Szöllősi J. Chemoprevention of Breast Cancer by Dietary Polyphenols. Molecules 2015; 20:22578-620. [PMID: 26694341 PMCID: PMC6332464 DOI: 10.3390/molecules201219864] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/04/2015] [Accepted: 12/08/2015] [Indexed: 02/07/2023] Open
Abstract
The review will discuss in detail the effects of polyphenols on breast cancer, including both the advantages and disadvantages of the applications of these natural compounds. First, we focus on the characterization of the main classes of polyphenols and then on in vitro and in vivo experiments carried out in breast cancer models. Since the therapeutic effects of the administration of a single type of polyphenol might be limited because of the reduced bioavailability of these drugs, investigations on combination of several polyphenols or polyphenols with conventional therapy will also be discussed. In addition, we present recent data focusing on clinical trials with polyphenols and new approaches with nanoparticles in breast cancer. Besides the clinical and translational findings this review systematically summarizes our current knowledge about the molecular mechanisms of anti-cancer effects of polyphenols, which are related to apoptosis, cell cycle regulation, plasma membrane receptors, signaling pathways and epigenetic mechanisms. At the same time the effects of polyphenols on primary tumor, metastasis and angiogenesis in breast cancer are discussed. The increasing enthusiasm regarding the combination of polyphenols and conventional therapy in breast cancer might lead to additional efforts to motivate further research in this field.
Collapse
Affiliation(s)
- Maria-Magdalena Mocanu
- Department of Biophysics, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Péter Nagy
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - János Szöllősi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
- MTA-DE Cell Biology and Signaling Research Group, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| |
Collapse
|
20
|
Ranganathan S, Halagowder D, Sivasithambaram ND. Quercetin Suppresses Twist to Induce Apoptosis in MCF-7 Breast Cancer Cells. PLoS One 2015; 10:e0141370. [PMID: 26491966 PMCID: PMC4619597 DOI: 10.1371/journal.pone.0141370] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 10/06/2015] [Indexed: 12/14/2022] Open
Abstract
Quercetin is a dietary flavonoid which exerts anti-oxidant, anti-inflammatory and anti-cancer properties. In this study, we investigated the anti-proliferative effect of quercetin in two breast cancer cell lines (MCF-7 and MDA-MB-231), which differed in hormone receptor. IC50 value (37μM) of quercetin showed significant cytotoxicity in MCF-7 cells, which was not observed in MDA-MB-231 cells even at 100μM of quercetin treatment. To study the response of cancer cells to quercetin, with respect to different hormone receptors, both the cell lines were treated with a fixed concentration (40μM) of quercetin. MCF-7 cells on quercetin treatment showed more apoptotic cells with G1 phase arrest. In addition, quercetin effectively suppressed the expression of CyclinD1, p21, Twist and phospho p38MAPK, which was not observed in MDA-MB-231 cells. To analyse the molecular mechanism of quercetin in exerting an apoptotic effect in MCF-7 cells, Twist was over-expressed and the molecular changes were observed after quercetin administration. Quercetin effectively regulated the expression of Twist, in turn p16 and p21 which induced apoptosis in MCF-7 cells. In conclusion, quercetin induces apoptosis in breast cancer cells through suppression of Twist via p38MAPK pathway.
Collapse
|
21
|
Paller CJ, Kanaan YM, Beyene DA, Naab TJ, Copeland RL, Tsai HL, Kanarek NF, Hudson TS. Risk of prostate cancer in African-American men: Evidence of mixed effects of dietary quercetin by serum vitamin D status. Prostate 2015; 75:1376-83. [PMID: 26047130 PMCID: PMC4536082 DOI: 10.1002/pros.23018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 04/22/2015] [Indexed: 01/30/2023]
Abstract
BACKGROUND African-American (AA) men experience higher rates of prostate cancer (PCa) and vitamin D (vitD) deficiency than white men. VitD is promoted for PCa prevention, but there is conflicting data on the association between vitD and PCa. We examined the association between serum vitD and dietary quercetin and their interaction with PCa risk in AA men. METHODS Participants included 90 AA men with PCa undergoing treatment at Howard University Hospital (HUH) and 62 controls participating in HUH's free PCa screening program. We measured serum 25-hydroxy vitD [25(OH)D] and used the 98.2 item Block Brief 2000 Food Frequency Questionnaires to measure dietary intake of quercetin and other nutrients. Case and control groups were compared using a two-sample t-test for continuous risk factors and a Fisher exact test for categorical factors. Associations between risk factors and PCa risk were examined via age-adjusted logistic regression models. RESULTS Interaction effects of dietary quercetin and serum vitD on PCa status were observed. AA men (age 40-70) with normal levels of serum vitD (>30 ng/ml) had a 71% lower risk of PCa compared to AA men with vitD deficiency (OR = 0.29, 95%CI: 0.08-1.03; P = 0.055). In individuals with vitD deficiency, increased dietary quercetin showed a tendency toward lower risk of PCa (OR = 0.91, 95%CI: 0.82-1.00; P = 0.054, age-adjusted) while men with normal vitD were at elevated risk (OR = 1.23, 95%CI: 1.04-1.45). CONCLUSION These findings suggest that AA men who are at a higher risk of PCa may benefit more from vitD intake, and supplementation with dietary quercetin may increase the risk of PCa in AA men with normal vitD levels. Further studies with larger populations are needed to better understand the impact of the interaction between sera vitD levels and supplementation with quercetin on PCa in AA men.
Collapse
Affiliation(s)
- C J Paller
- Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Y M Kanaan
- Department of Microbiology, Howard University Cancer Center, Washington, District of Columbia
| | - D A Beyene
- Department of Microbiology, Howard University Cancer Center, Washington, District of Columbia
| | - T J Naab
- Department of Pathology, Howard University Cancer Center, Washington, District of Columbia
| | - R L Copeland
- Department of Pharmacology, Howard University Cancer Center, Washington, District of Columbia
| | - H L Tsai
- Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Division of Biostatistics and Bioinformatics, Baltimore, Maryland
| | - N F Kanarek
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - T S Hudson
- Department of Pharmacology, Howard University Cancer Center, Washington, District of Columbia
| |
Collapse
|
22
|
Steiner J, Davis J, McClellan J, Enos R, Carson J, Fayad R, Nagarkatti M, Nagarkatti P, Altomare D, Creek K, Murphy E. Dose-dependent benefits of quercetin on tumorigenesis in the C3(1)/SV40Tag transgenic mouse model of breast cancer. Cancer Biol Ther 2015; 15:1456-67. [PMID: 25482952 DOI: 10.4161/15384047.2014.955444] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Breast cancer is the leading cause of cancer related death in women. Quercetin is a flavonol shown to have anti-carcinogenic actions. However, few studies have investigated the dose-dependent effects of quercetin on tumorigenesis and none have used the C3(1)/SV40 Tag breast cancer mouse model. At 4 weeks of age female C3(1)/SV40 Tag mice were randomized to one of four dietary treatments (n = 15-16/group): control (no quercetin), low-dose quercetin (0.02% diet), moderate-dose quercetin (0.2% diet), or high-dose quercetin (2% diet). Tumor number and volume was assessed twice a week and at sacrifice (20 wks). Results showed an inverted 'U' dose-dependent effect of dietary quercetin on tumor number and volume; at sacrifice the moderate dose was most efficacious and reduced tumor number 20% and tumor volume 78% compared to control mice (C3-Con: 9.0 ± 0.9; C3-0.2%: 7.3 ± 0.9) and (C3-Con: 2061.8 ± 977.0 mm(3); and C3-0.2%: 462.9 ± 75.9 mm(3)). Tumor volume at sacrifice was also reduced by the moderate dose compared to the high and low doses (C3-2%: 1163.2 ± 305.9 mm(3); C3-0.02%: 1401.5 ± 555.6 mm(3)), as was tumor number (C3-2%: 10.7 ± 1.3 mm(3); C3-0.02%: 8.1 ± 1.1 mm(3)). Gene expression microarray analysis performed on mammary glands from C3-Con and C3-0.2% mice determined that 31 genes were down-regulated and 9 genes were up-regulated more than 2-fold (P < 0.05) by quercetin treatment. We report the novel finding that there is a distinct dose-dependent effect of quercetin on tumor number and volume in a transgenic mouse model of human breast cancer, which is associated with a specific gene expression signature related to quercetin treatment.
Collapse
Key Words
- BW, body weight
- DCIS, ductal carcinoma in situ
- DEPTOR, DEP domain containing mTOR-interacting protein
- DEXA, dual-energy X-ray absorptiometry
- ERα, estrogen receptor alpha
- FABP7, fatty acid binding protein-7
- GREB1, growth regulation by estrogen in breast cancer
- MIN, mammary intraepithelial neoplasia
- Muc13, Mucin 13
- NGFR, nerve growth factor receptor
- TIMP4, tissue inhibitor of metalloproteinases-4
- TMPRSS4, transmembrane protease serine 4
- dose-response
- flavonoid
- gene expression microarray
- krt6a/b, keratin 6A/B
- mammary tumorigenesis
Collapse
Affiliation(s)
- Jl Steiner
- a Department of Pathology Microbiology and Immunology ; University of South Carolina School of Medicine ; Columbia , SC USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Chatterjee A, Ronghe A, Singh B, Bhat NK, Chen J, Bhat HK. Natural antioxidants exhibit chemopreventive characteristics through the regulation of CNC b-Zip transcription factors in estrogen-induced breast carcinogenesis. J Biochem Mol Toxicol 2014; 28:529-38. [PMID: 25130429 DOI: 10.1002/jbt.21594] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 07/01/2014] [Indexed: 12/17/2022]
Abstract
UNLABELLED The objective of the present study was to characterize the role of resveratrol (Res) and vitamin C (VC) in prevention of estrogen-induced breast cancer through regulation of cap "n"collar (CNC) b-zip transcription factors. Human breast epithelial cell line MCF-10A was treated with 17β-estradiol (E2) and VC or Res with or without E2. mRNA and protein expression levels of CNC b-zip transcription factors nuclear factor erythroid 2-related factor 1 (Nrf1), nuclear factor erythroid 2 related factor 2 (Nrf2), nuclear factor erythroid 2 related factor 3 (Nrf3), and Nrf2-regulated antioxidant enzymes superoxide dismutase 3 (SOD3) and NAD(P)H quinone oxidoreductase 1 (NQO1) were quantified. The treatment with E2 suppressed, whereas VC and Res prevented E2-mediated decrease in the expression levels of SOD3, NQO1, Nrf2 mRNA, and protein in MCF-10A cells. The treatment with E2, Res, or VC significantly increased mRNA and protein expression levels of Nrf1. 17β-Estradiol treatment significantly increased but VC or Res decreased Nrf3 mRNA and protein expression levels. Our studies demonstrate that estrogen-induced breast cancer might be prevented through upregulation of antioxidant enzymes via Nrf-dependent pathways.
Collapse
Affiliation(s)
- Anwesha Chatterjee
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, 64108, USA.
| | | | | | | | | | | |
Collapse
|
24
|
Singh B, Shoulson R, Chatterjee A, Ronghe A, Bhat NK, Dim DC, Bhat HK. Resveratrol inhibits estrogen-induced breast carcinogenesis through induction of NRF2-mediated protective pathways. Carcinogenesis 2014; 35:1872-80. [PMID: 24894866 DOI: 10.1093/carcin/bgu120] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The importance of estrogens in the etiology of breast cancer is widely recognized. Estrogen-induced oxidative stress has been implicated in this carcinogenic process. Resveratrol (Res), a natural antioxidant phytoestrogen has chemopreventive effects against a variety of illnesses including cancer. The objective of the present study was to characterize the mechanism(s) of Res-mediated protection against estrogen-induced breast carcinogenesis. Female August Copenhagen Irish rats were treated with 17β-estradiol (E2), Res and Res + E2 for 8 months. Cotreatment of rats with Res and E2 inhibited E2-mediated proliferative changes in mammary tissues and significantly increased tumor latency and reduced E2-induced breast tumor development. Resveratrol treatment alone or in combination with E2 significantly upregulated expression of nuclear factor erythroid 2-related factor 2 (NRF2) in mammary tissues. Expression of NRF2-regulated antioxidant genes NQO1, SOD3 and OGG1 that are involved in protection against oxidative DNA damage was increased in Res- and Res + E2-treated mammary tissues. Resveratrol also prevented E2-mediated inhibition of detoxification genes AOX1 and FMO1. Inhibition of E2-mediated alterations in NRF2 promoter methylation and expression of NRF2 targeting miR-93 after Res treatment indicated Res-mediated epigenetic regulation of NRF2 during E2-induced breast carcinogenesis. Resveratrol treatment also induced apoptosis and inhibited E2-mediated increase in DNA damage in mammary tissues. Increased apoptosis and decreased DNA damage, cell migration, colony and mammosphere formation in Res- and Res + E2-treated MCF-10A cells suggested a protective role of Res against E2-induced mammary carcinogenesis. Small-interfering RNA-mediated silencing of NRF2 inhibited Res-mediated preventive effects on the colony and mammosphere formation. Taken together, these results suggest that Res inhibits E2-induced breast carcinogenesis via induction of NRF2-mediated protective pathways.
Collapse
Affiliation(s)
- Bhupendra Singh
- Department of Genetics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA, Institute of Comparative Medicine, Columbia University, New York, NY 10032, USA and Division of Pharmacology and Toxicology, School of Pharmacy and School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Rivka Shoulson
- Institute of Comparative Medicine, Columbia University, New York, NY 10032, USA and
| | | | - Amruta Ronghe
- Division of Pharmacology and Toxicology, School of Pharmacy and
| | - Nimee K Bhat
- Division of Pharmacology and Toxicology, School of Pharmacy and
| | - Daniel C Dim
- School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Hari K Bhat
- Division of Pharmacology and Toxicology, School of Pharmacy and
| |
Collapse
|
25
|
Forbes AM, Lin H, Meadows GG, Meier GP. Synthesis and anticancer activity of new flavonoid analogs and inconsistencies in assays related to proliferation and viability measurements. Int J Oncol 2014; 45:831-42. [PMID: 24859601 PMCID: PMC4091967 DOI: 10.3892/ijo.2014.2452] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 03/14/2014] [Indexed: 12/15/2022] Open
Abstract
Flavonoids have been studied intensely for their ability to act as anti-carcinogenic, anti-inflammatory, anti-viral and anti-aging agents and are often marketed as supplements related to their anti-inflammatory activity. Previous studies have primarily focused on the effects of polar natural flavonoids. We examined the activity of novel hydrophobic and lipophilic flavonols against human DU-145 and PC-3 prostate cancer cell lines. All flavonol analogs were more active than the naturally occurring flavonols quercetin, kaempferol, kaempferide and galangin. The most potent analogs were 6.5-fold more active against DU-145 and PC-3 cells than quercetin and fell within the biologically relevant concentration range (low micromolar). We also evaluated the potential toxic effects of flavonol analogs on normal cells, an assessment that has frequently been ignored when studying the anticancer effects of flavonoids. During these analyses, we discovered that various metabolic and DNA staining assays were unreliable methods for assessing cell viability of flavonoids. Flavonoids reduce colorimetric dyes such as MTT and Alamar Blue in the absence of cells. We showed that flavonol-treated prostate cancer cells were stained less intensely with crystal violet than untreated cells at non-toxic concentrations. The trypan blue exclusion assay was selected as a reliable alternative for measuring cell viability.
Collapse
Affiliation(s)
- Alaina M Forbes
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA
| | - Huimin Lin
- Department of Pharmaceutical Sciences, Washington State University, Pullman, WA 99164-4630, USA
| | - Gary G Meadows
- Department of Pharmaceutical Sciences, Washington State University, Pullman, WA 99164-4630, USA
| | - G Patrick Meier
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA
| |
Collapse
|
26
|
Zamin LL, Filippi-Chiela EC, Vargas J, Demartini DR, Meurer L, Souza AP, Bonorino C, Salbego C, Lenz G. Quercetin promotes glioma growth in a rat model. Food Chem Toxicol 2014; 63:205-11. [DOI: 10.1016/j.fct.2013.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/21/2013] [Accepted: 11/04/2013] [Indexed: 10/26/2022]
|
27
|
Singh B, Chatterjee A, Ronghe AM, Bhat NK, Bhat HK. Antioxidant-mediated up-regulation of OGG1 via NRF2 induction is associated with inhibition of oxidative DNA damage in estrogen-induced breast cancer. BMC Cancer 2013; 13:253. [PMID: 23697596 PMCID: PMC3665669 DOI: 10.1186/1471-2407-13-253] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 05/07/2013] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Estrogen metabolism-mediated oxidative stress is suggested to play an important role in estrogen-induced breast carcinogenesis. We have earlier demonstrated that antioxidants, vitamin C (Vit C) and butylated hydroxyanisole (BHA) inhibit 17β-estradiol (E2)-mediated oxidative stress and oxidative DNA damage, and breast carcinogenesis in female August Copenhagen Irish (ACI) rats. The objective of the present study was to characterize the mechanism by which above antioxidants prevent DNA damage during breast carcinogenesis. METHODS Female ACI rats were treated with E2; Vit C; Vit C + E2; BHA; and BHA + E2 for up to 240 days. mRNA and protein levels of a DNA repair enzyme 8-Oxoguanine DNA glycosylase (OGG1) and a transcription factor NRF2 were quantified in the mammary and mammary tumor tissues of rats after treatment with E2 and compared with that of rats treated with antioxidants either alone or in combination with E2. RESULTS The expression of OGG1 was suppressed in mammary tissues and in mammary tumors of rats treated with E2. Expression of NRF2 was also significantly suppressed in E2-treated mammary tissues and in mammary tumors. Vitamin C or BHA treatment prevented E2-mediated decrease in OGG1 and NRF2 levels in the mammary tissues. Chromatin immunoprecipitation analysis confirmed that antioxidant-mediated induction of OGG1 was through increased direct binding of NRF2 to the promoter region of OGG1. Studies using silencer RNA confirmed the role of OGG1 in inhibition of oxidative DNA damage. CONCLUSIONS Our studies suggest that antioxidants Vit C and BHA provide protection against oxidative DNA damage and E2-induced mammary carcinogenesis, at least in part, through NRF2-mediated induction of OGG1.
Collapse
Affiliation(s)
- Bhupendra Singh
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Room 5251, Kansas City, MO 64108, USA
| | | | | | | | | |
Collapse
|
28
|
Singh B, Ronghe AM, Chatterjee A, Bhat NK, Bhat HK. MicroRNA-93 regulates NRF2 expression and is associated with breast carcinogenesis. Carcinogenesis 2013; 34:1165-72. [PMID: 23492819 DOI: 10.1093/carcin/bgt026] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNA) are small non-coding RNAs that regulate the expression of approximately 60% of all human genes and play important roles in disease processes. Recent studies have demonstrated a link between dysregulated expression of miRNAs and breast carcinogenesis. Long-term estrogen exposure is implicated in development of human breast cancers, yet underlying mechanisms remain elusive. We have recently demonstrated that antioxidant vitamin C (vit C) prevents estrogen-induced breast tumor development. In this study, we investigated the role of vit C in the regulation of microRNA-93 (miR-93) and its target gene(s) in a rat model of mammary carcinogenesis. Female August Copenhagen Irish (ACI) rats were treated with vit C in the presence or absence of 17β-estradiol (E2) for 8 months. We demonstrate an increased expression of the miR-93 in E2-treated mammary tissues and in human breast cell lines and vit C treatment reverted E2-mediated increase in miR-93 levels. MiRNA target prediction programs suggest one of the target genes of miR-93 to be nuclear factor erythroid 2-related factor 2 (NRF2). In contrast with miR-93 expression, NRF2 protein expression was significantly decreased in E2-treated mammary tissues, mammary tumors, and in breast cancer cell lines, and its expression was significantly increased after vit C treatment. Ectopic expression of miR-93 decreased protein expression of NRF2 and NRF2-regulated genes. Furthermore, miR-93 decreased apoptosis, increased colony formation, mammosphere formation, cell migration and DNA damage in breast epithelial cells, whereas silencing of miR-93 in these cells inhibited these carcinogenic processes. Taken together, our findings suggest an oncogenic potential of miR-93 during E2-induced breast carcinogenesis.
Collapse
Affiliation(s)
- Bhupendra Singh
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | | | | | | | | |
Collapse
|
29
|
Andrés S, Tejido M, Bodas R, Morán L, Prieto N, Blanco C, Giráldez F. Quercetin dietary supplementation of fattening lambs at 0.2% rate reduces discolouration and microbial growth in meat during refrigerated storage. Meat Sci 2013; 93:207-12. [DOI: 10.1016/j.meatsci.2012.08.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 08/23/2012] [Accepted: 08/27/2012] [Indexed: 11/15/2022]
|
30
|
Pratheeshkumar P, Sreekala C, Zhang Z, Budhraja A, Ding S, Son YO, Wang X, Hitron A, Hyun-Jung K, Wang L, Lee JC, Shi X. Cancer prevention with promising natural products: mechanisms of action and molecular targets. Anticancer Agents Med Chem 2012; 12:1159-84. [PMID: 22583402 PMCID: PMC4983770 DOI: 10.2174/187152012803833035] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 01/05/2012] [Accepted: 01/05/2012] [Indexed: 11/22/2022]
Abstract
Cancer is the second leading cause of death worldwide. There is greater need for more effective and less toxic therapeutic and preventive strategies. Natural products are becoming an important research area for novel and bioactive molecules for drug discovery. Phytochemicals and dietary compounds have been used for the treatment of cancer throughout history due to their safety, low toxicity, and general availability. Many active phytochemicals are in human clinical trials. Studies have indicated that daily consumption of dietary phytochemicals have cancer protective effects against carcinogens. They can inhibit, delay, or reverse carcinogenesis by inducing detoxifying and antioxidant enzymes systems, regulating inflammatory and proliferative signaling pathways, and inducing cell cycle arrest and apoptosis. Epidemiological studies have also revealed that high dietary intakes of fruits and vegetables reduce the risk of cancer. This review discusses potential natural cancer preventive compounds, their molecular targets, and their mechanisms of actions.
Collapse
Affiliation(s)
- Poyil Pratheeshkumar
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | | | - Zhuo Zhang
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Amit Budhraja
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Songze Ding
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Young-Ok Son
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Xin Wang
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Andrew Hitron
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Kim Hyun-Jung
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Lei Wang
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Jeong-Chae Lee
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| | - Xianglin Shi
- Graduate Center for Toxicology, University of Kentucky, Lexington, KY 40536, USA
| |
Collapse
|
31
|
Singh B, Bhat HK. Superoxide dismutase 3 is induced by antioxidants, inhibits oxidative DNA damage and is associated with inhibition of estrogen-induced breast cancer. Carcinogenesis 2012; 33:2601-10. [PMID: 23027624 DOI: 10.1093/carcin/bgs300] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Epidemiological data and studies in rodent models strongly support the role of estrogens in the development of breast cancers. Oxidative stress has been implicated in this carcinogenic process. We have recently demonstrated that antioxidants vitamin C or butylated hydroxyanisole (BHA) severely inhibit 17β-estradiol (E2)-induced breast tumor development in female ACI rats. The objective of this study was to characterize the mechanism of antioxidant-mediated prevention of breast cancer. Female August Copenhagen Irish (ACI) rats were treated with E2, vitamin C, vitamin C + E2, BHA and BHA + E2 for up to 8 months. Superoxide dismutase 3 (SOD3) was suppressed in E2-exposed mammary tissues and in mammary tumors of rats treated with E2. This suppression was overcome by co-treatment of rats with E2 and vitamin C or BHA. 8-Hydroxydeoxyguanosine (8-OHdG) levels determined as a marker of oxidative DNA damage were higher in E2-exposed mammary tissues and in mammary tumors compared with age-matched controls. Vitamin C or BHA treatment significantly decreased E2-mediated increase in 8-OHdG levels in the mammary tissues and in MCF-10A cells. Increased DNA damage, colony and mammosphere formation, and migration in SOD3 knocked down MCF-10A cells, and nuclear translocation of SOD3 in vitamin C-treated mammary tissues and in MCF-10A cells suggest protective role of SOD3 against DNA damage and mammary carcinogenesis. Our studies further demonstrate that SOD3, but not SOD2 and SOD1, is induced by antioxidants and is regulated through NRF2. SOD3 may thus be an important gene in defense against oxidative stress and in the prevention of estrogen-mediated breast cancer.
Collapse
Affiliation(s)
- Bhupendra Singh
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Room 5251, Kansas City, MO 64108, USA
| | | |
Collapse
|
32
|
Aiyer HS, Warri AM, Woode DR, Hilakivi-Clarke L, Clarke R. Influence of berry polyphenols on receptor signaling and cell-death pathways: implications for breast cancer prevention. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:5693-708. [PMID: 22300613 PMCID: PMC3383353 DOI: 10.1021/jf204084f] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Breast cancer is the most commonly diagnosed cancer among women worldwide. Many women have become more aware of the benefits of increasing fruit consumption, as part of a healthy lifestyle, for the prevention of cancer. The mechanisms by which fruits, including berries, prevent breast cancer can be partially explained by exploring their interactions with pathways known to influence cell proliferation and evasion of cell-death. Two receptor pathways, estrogen receptor (ER) and tyrosine kinase receptors, especially the epidermal growth factor receptor (EGFR) family, are drivers of cell proliferation and play a significant role in the development of both primary and recurrent breast cancer. There is strong evidence to show that several phytochemicals present in berries such as cyanidin, delphinidin, quercetin, kaempferol, ellagic acid, resveratrol, and pterostilbene interact with and alter the effects of these pathways. Furthermore, they also induce cell death (apoptosis and autophagy) via their influence on kinase signaling. This review summarizes in vitro data regarding the interaction of berry polyphenols with the specific receptors and the mechanisms by which they induce cell death. This paper also presents in vivo data of primary breast cancer prevention by individual compounds and whole berries. Finally, a possible role for berries and berry compounds in the prevention of breast cancer and a perspective on the areas that require further research are presented.
Collapse
Affiliation(s)
- Harini S Aiyer
- Georgetown University School of Medicine, Vincent T. Lombardi Comprehensive Cancer Center, Georgetown University, 3970 Reservoir Road NW, W401, Research Bldg, Washington, D.C. 20057
- Corresponding author: Harini S. Aiyer, PhD (Tel: 202-687-4060; Fax: 202-687-7505; )
| | - Anni M Warri
- Georgetown University School of Medicine, Vincent T. Lombardi Comprehensive Cancer Center, Georgetown University, 3970 Reservoir Road NW, W401, Research Bldg, Washington, D.C. 20057
| | - Denzel R Woode
- Columbia University, 5992 Lerner Hall, New York, NY 10027
| | - Leena Hilakivi-Clarke
- Georgetown University School of Medicine, Vincent T. Lombardi Comprehensive Cancer Center, Georgetown University, 3970 Reservoir Road NW, W401, Research Bldg, Washington, D.C. 20057
| | - Robert Clarke
- Georgetown University School of Medicine, Vincent T. Lombardi Comprehensive Cancer Center, Georgetown University, 3970 Reservoir Road NW, W401, Research Bldg, Washington, D.C. 20057
| |
Collapse
|
33
|
Partial inhibition of estrogen-induced mammary carcinogenesis in rats by tamoxifen: balance between oxidant stress and estrogen responsiveness. PLoS One 2011; 6:e25125. [PMID: 21966433 PMCID: PMC3180376 DOI: 10.1371/journal.pone.0025125] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Accepted: 08/25/2011] [Indexed: 11/19/2022] Open
Abstract
Epidemiological and experimental evidences strongly support the role of estrogens in breast tumor development. Both estrogen receptor (ER)-dependent and ER-independent mechanisms are implicated in estrogen-induced breast carcinogenesis. Tamoxifen, a selective estrogen receptor modulator is widely used as chemoprotectant in human breast cancer. It binds to ERs and interferes with normal binding of estrogen to ERs. In the present study, we examined the effect of long-term tamoxifen treatment in the prevention of estrogen-induced breast cancer. Female ACI rats were treated with 17β-estradiol (E2), tamoxifen or with a combination of E2 and tamoxifen for eight months. Tissue levels of oxidative stress markers 8-iso-Prostane F2α (8-isoPGF2α), superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase, and oxidative DNA damage marker 8-hydroxydeoxyguanosine (8-OHdG) were quantified in the mammary tissues of all the treatment groups and compared with age-matched controls. Levels of tamoxifen metabolizing enzymes cytochrome P450s as well as estrogen responsive genes were also quantified. At necropsy, breast tumors were detected in 44% of rats co-treated with tamoxifen+E2. No tumors were detected in the sham or tamoxifen only treatment groups whereas in the E2 only treatment group, the tumor incidence was 82%. Co-treatment with tamoxifen decreased GPx and catalase levels; did not completely inhibit E2-mediated oxidative DNA damage and estrogen-responsive genes monoamine oxygenase B1 (MaoB1) and cell death inducing DFF45 like effector C (Cidec) but differentially affected the levels of tamoxifen metabolizing enzymes. In summary, our studies suggest that although tamoxifen treatment inhibits estrogen-induced breast tumor development and increases the latency of tumor development, it does not completely abrogate breast tumor development in a rat model of estrogen-induced breast cancer. The inability of tamoxifen to completely inhibit E2-induced breast carcinogenesis may be because of increased estrogen-mediated oxidant burden.
Collapse
|
34
|
Cirillo G, Puoci F, Iemma F, Curcio M, Parisi OI, Spizzirri UG, Altimari I, Picci N. Starch-quercetin conjugate by radical grafting: synthesis and biological characterization. Pharm Dev Technol 2011; 17:466-76. [DOI: 10.3109/10837450.2010.546413] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
35
|
Niu G, Yin S, Xie S, Li Y, Nie D, Ma L, Wang X, Wu Y. Quercetin induces apoptosis by activating caspase-3 and regulating Bcl-2 and cyclooxygenase-2 pathways in human HL-60 cells. Acta Biochim Biophys Sin (Shanghai) 2011; 43:30-7. [PMID: 21173056 DOI: 10.1093/abbs/gmq107] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Quercetin is one of the naturally occurring dietary flavonol compounds. It is present abundantly in plants and has chemopreventive and anticancer effects. To investigate its anticancer mechanism, we examined the activity of quercetin against acute leukemia cell line, HL-60. Our results showed that quercetin inhibited cell proliferation and induced apoptosis in a time- and dose-dependent manner. Furthermore, quercetin down-regulated the expression of anti-apoptosis protein Bcl-2 and up-regulated the expression of pro-apoptosis protein Bax. Caspase-3 was also activated by quercetin, which started a caspase-3-depended mitochodrial pathway to induce apoptosis. It was also found that quercetin inhibited the expression of the cycloocygenase-2 (Cox-2) mRNA and Cox-2 protein. Taken together, these findings suggested that quercetin induces apoptosis in a caspase-3-dependent pathway by inhibiting Cox-2 expression and regulates the expression of downstream apoptotic components, including Bcl-2 and Bax. Quercetin can be a potent and promising medicine which might be safely used in leukemia therapy.
Collapse
Affiliation(s)
- Guomin Niu
- Department of Hematology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|