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Barathan M, Vellasamy KM, Mariappan V, Venkatraman G, Vadivelu J. Naturally Occurring Phytochemicals to Target Breast Cancer Cell Signaling. Appl Biochem Biotechnol 2024; 196:4644-4660. [PMID: 37773580 DOI: 10.1007/s12010-023-04734-0] [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] [Accepted: 09/15/2023] [Indexed: 10/01/2023]
Abstract
Almost 70% of clinically used antineoplastic drugs are originated from natural products such as plants, marine organism, and microorganisms and some of them are also structurally modified natural products. The naturally occurring drugs may specifically act as inducers of selective cytotoxicity, anti-metastatic, anti-mutagenic, anti-angiogenesis, antioxidant accelerators, apoptosis inducers, autophagy inducers, and cell cycle inhibitors in cancer therapy. Precisely, several reports have demonstrated the involvement of naturally occurring anti-breast cancer drugs in regulating the expression of oncogenic and tumor suppressors associated with carcinogen metabolism and signaling pathways. Anticancer therapies based on nanotechnology have the potential to improve patient outcomes through targeted therapy, improved drug delivery, and combination therapies. This paper has reviewed the current treatment for breast cancer and the potential disadvantages of those therapies, besides the various mechanism used by naturally occurring phytochemicals to induce apoptosis in different types of breast cancer. Along with this, the contribution of nanotechnology in improving the effectiveness of anticancer drugs was also reviewed. With the development of sciences and technologies, phytochemicals derived from natural products are continuously discovered; however, the search for novel natural products as chemoprevention drugs is still ongoing, especially for the advanced stage of breast cancer. Continued research and development in this field hold great promise for advancing cancer care and improving patient outcomes.
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Affiliation(s)
- Muttiah Barathan
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia.
| | - Kumutha Malar Vellasamy
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Vanitha Mariappan
- Center of Toxicology and Health Risk Studies (CORE), Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Aziz, 50300, Kuala Lumpur, Malaysia
| | - Gopinath Venkatraman
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India
| | - Jamuna Vadivelu
- MERDU, Faculty of Medicine, Universiti Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia.
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2
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Nie D, He X, Zheng H, Deng D, He F, Li R, Ni X, Li S, Xu F. Association between green tea intake and digestive system cancer risk in European and East Asian populations: a Mendelian randomization study. Eur J Nutr 2024; 63:1103-1111. [PMID: 38319384 DOI: 10.1007/s00394-023-03312-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 12/18/2023] [Indexed: 02/07/2024]
Abstract
PURPOSE Previous observational studies have shown that green tea consumption is associated with a reduced incidence of digestive system cancers (DSCs). However, the observed association could be due to confounding factors. Therefore, we used a two-sample Mendelian randomization (MR) approach to assess the causal effect of green tea intake on the risk of five common DSCs. METHODS Independent genetic variants strongly associated with green tea consumption in European and East Asian populations were selected as instrumental variables in genome-wide association studies involving up to 64,949 European individuals and 152,653 East Asian individuals, respectively. The associations between genetic variants and DSCs were extracted from the FinnGen study and the Japan Biobank. The primary analysis was performed using random-effects inverse variance weighting (IVW). Other MR analyses, including weighted mode-based estimate, weighted-median, MR-Egger regression, Mendelian Randomization-Pleiotropy Residual Sum and Outlier (MR-PRESSO) analysis, were used for sensitivity analyses. In addition, a multivariate MR design was performed to adjust for smoking and alcohol consumption. RESULTS The IVW results showed no causal relationship between tea intake and DSCs risk in European population (esophagus cancer: odds ratio (OR) = 1.044, 95% confidence interval (CI) 0.992-1.099, p = 0.096; stomach cancer: OR = 0.988, 95% CI 0.963-1.014, p = 0.368; colorectal cancer: OR = 1.003, 95% CI 0.992-1.015, p = 0.588; liver cancer: OR = 0.996, 95% CI 0.960-1.032, p = 0.808; pancreatic cancer: OR = 0.990, 95% CI 0.965-1.015, p = 0.432). The MR-Egger regression, MR-PRESSO analysis and other methods also confirmed the reliability of the conclusion. Similarly, no significant association was found between green tea consumption and the incidence of DSCs among East Asians. This relationship is not significant even after adjusting for smoking and alcohol consumption (P > 0.05). CONCLUSION Our study provides evidence that genetically predicted green tea intake is not causally associated with the development of DSCs in the European and East Asian population.
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Affiliation(s)
- Duorui Nie
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Xiaoyu He
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hao Zheng
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Deyu Deng
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Fanghui He
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Ruyi Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Xiaoting Ni
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Shunxiang Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.
- Hunan Engineering Technology Research Center for Bioactive Substance Discovery of Chinese Medicine, Changsha, China.
- Hunan Province Sino-US International Joint Research Center for Therapeutic Drugs of Senile Degenerative Diseases, Changsha, China.
| | - Fei Xu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.
- Hunan Engineering Technology Research Center for Bioactive Substance Discovery of Chinese Medicine, Changsha, China.
- Hunan Province Sino-US International Joint Research Center for Therapeutic Drugs of Senile Degenerative Diseases, Changsha, China.
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Gabbianelli R, Shahar E, de Simone G, Rucci C, Bordoni L, Feliziani G, Zhao F, Ferrati M, Maggi F, Spinozzi E, Mahajna J. Plant-Derived Epi-Nutraceuticals as Potential Broad-Spectrum Anti-Viral Agents. Nutrients 2023; 15:4719. [PMID: 38004113 PMCID: PMC10675658 DOI: 10.3390/nu15224719] [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: 10/17/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Although the COVID-19 pandemic appears to be diminishing, the emergence of SARS-CoV-2 variants represents a threat to humans due to their inherent transmissibility, immunological evasion, virulence, and invulnerability to existing therapies. The COVID-19 pandemic affected more than 500 million people and caused over 6 million deaths. Vaccines are essential, but in circumstances in which vaccination is not accessible or in individuals with compromised immune systems, drugs can provide additional protection. Targeting host signaling pathways is recommended due to their genomic stability and resistance barriers. Moreover, targeting host factors allows us to develop compounds that are effective against different viral variants as well as against newly emerging virus strains. In recent years, the globe has experienced climate change, which may contribute to the emergence and spread of infectious diseases through a variety of factors. Warmer temperatures and changing precipitation patterns can increase the geographic range of disease-carrying vectors, increasing the risk of diseases spreading to new areas. Climate change may also affect vector behavior, leading to a longer breeding season and more breeding sites for disease vectors. Climate change may also disrupt ecosystems, bringing humans closer to wildlife that transmits zoonotic diseases. All the above factors may accelerate the emergence of new viral epidemics. Plant-derived products, which have been used in traditional medicine for treating pathological conditions, offer structurally novel therapeutic compounds, including those with anti-viral activity. In addition, plant-derived bioactive substances might serve as the ideal basis for developing sustainable/efficient/cost-effective anti-viral alternatives. Interest in herbal antiviral products has increased. More than 50% of approved drugs originate from herbal sources. Plant-derived compounds offer diverse structures and bioactive molecules that are candidates for new drug development. Combining these therapies with conventional drugs could improve patient outcomes. Epigenetics modifications in the genome can affect gene expression without altering DNA sequences. Host cells can use epigenetic gene regulation as a mechanism to silence incoming viral DNA molecules, while viruses recruit cellular epitranscriptomic (covalent modifications of RNAs) modifiers to increase the translational efficiency and transcript stability of viral transcripts to enhance viral gene expression and replication. Moreover, viruses manipulate host cells' epigenetic machinery to ensure productive viral infections. Environmental factors, such as natural products, may influence epigenetic modifications. In this review, we explore the potential of plant-derived substances as epigenetic modifiers for broad-spectrum anti-viral activity, reviewing their modulation processes and anti-viral effects on DNA and RNA viruses, as well as addressing future research objectives in this rapidly emerging field.
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Affiliation(s)
- Rosita Gabbianelli
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Ehud Shahar
- Department of Nutrition and Natural Products, Migal—Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Department of Biotechnology, Tel-Hai College, Kiryat Shmona 1220800, Israel
| | - Gaia de Simone
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Chiara Rucci
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Laura Bordoni
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Giulia Feliziani
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Fanrui Zhao
- Unit of Molecular Biology and Nutrigenomics, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (R.G.); (G.d.S.); (L.B.); (G.F.); (F.Z.)
| | - Marta Ferrati
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Filippo Maggi
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Eleonora Spinozzi
- Chemistry Interdisciplinary Project (ChIP) Research Centre, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (M.F.); (F.M.); (E.S.)
| | - Jamal Mahajna
- Department of Nutrition and Natural Products, Migal—Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Department of Biotechnology, Tel-Hai College, Kiryat Shmona 1220800, Israel
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Pop OL, Suharoschi R, Socaci SA, Berger Ceresino E, Weber A, Gruber-Traub C, Vodnar DC, Fărcaș AC, Johansson E. Polyphenols—Ensured Accessibility from Food to the Human Metabolism by Chemical and Biotechnological Treatments. Antioxidants (Basel) 2023; 12:antiox12040865. [PMID: 37107240 PMCID: PMC10135483 DOI: 10.3390/antiox12040865] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Polyphenols are plant-based compounds famous for their positive impact on both human health and the quality of food products. The benefits of polyphenols are related to reducing cardiovascular diseases, cholesterol management, cancers, and neurological disorders in humans and increasing the shelf life, management of oxidation, and anti-microbial activity in food products. The bioavailability and bio-accessibility of polyphenols are of the highest importance to secure their impact on human and food health. This paper summarizes the current state-of-the-art approaches on how polyphenols can be made more accessible in food products to contribute to human health. For example, by using food processing methods including various technologies, such as chemical and biotechnological treatments. Food matrix design and simulation procedures, in combination with encapsulation of fractionated polyphenols utilizing enzymatic and fermentation methodology, may be the future technologies to tailor specific food products with the ability to ensure polyphenol release and availability in the most suitable parts of the human body (bowl, intestine, etc.). The development of such new procedures for utilizing polyphenols, combining novel methodologies with traditional food processing technologies, has the potential to contribute enormous benefits to the food industry and health sector, not only reducing food waste and food-borne illnesses but also to sustain human health.
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Affiliation(s)
- Oana Lelia Pop
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Molecular Nutrition and Proteomics Laboratory, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Ramona Suharoschi
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
- Molecular Nutrition and Proteomics Laboratory, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Sonia Ancuța Socaci
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Elaine Berger Ceresino
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-234 22 Lomma, Sweden
| | - Achim Weber
- Innovation Field Functional Surfaces and Materials, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Nobelstraße 12, 70569 Stuttgart, Germany
| | - Carmen Gruber-Traub
- Innovation Field Functional Surfaces and Materials, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Nobelstraße 12, 70569 Stuttgart, Germany
| | - Dan Cristian Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Anca Corina Fărcaș
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Eva Johansson
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-234 22 Lomma, Sweden
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Alipoor SD, Chang H. Exosomal miRNAs in the Tumor Microenvironment of Multiple Myeloma. Cells 2023; 12:cells12071030. [PMID: 37048103 PMCID: PMC10092980 DOI: 10.3390/cells12071030] [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: 02/28/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
Multiple myeloma (MM) is a malignancy of plasma cells in the bone marrow and is characterized by the clonal proliferation of B-cells producing defective monoclonal immunoglobulins. Despite the latest developments in treatment, drug resistance remains one of the major challenges in the therapy of MM. The crosstalk between MM cells and other components within the bone marrow microenvironment (BME) is the major determinant of disease phenotypes. Exosomes have emerged as the critical drivers of this crosstalk by allowing the delivery of informational cargo comprising multiple components from miniature peptides to nucleic acids. Such material transfers have now been shown to perpetuate drug-resistance development and disease progression in MM. MicroRNAs(miRNAs) specifically play a crucial role in this communication considering their small size that allows them to be readily packed within the exosomes and widespread potency that impacts the developmental trajectory of the disease inside the tumor microenvironment (TME). In this review, we aim to provide an overview of the current understanding of the role of exosomal miRNAs in the epigenetic modifications inside the TME and its pathogenic influence on the developmental phenotypes and prognosis of MM.
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Affiliation(s)
- Shamila D. Alipoor
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Molecular Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran P5X9+7F9, Iran
| | - Hong Chang
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Laboratory Hematology, Laboratory Medicine Program, University Health Network, Toronto, ON M5G 2M9, Canada
- Correspondence:
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Polyphenols as Potent Epigenetics Agents for Cancer. Int J Mol Sci 2022; 23:ijms231911712. [PMID: 36233012 PMCID: PMC9570183 DOI: 10.3390/ijms231911712] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 02/06/2023] Open
Abstract
Human diseases such as cancer can be caused by aberrant epigenetic regulation. Polyphenols play a major role in mammalian epigenome regulation through mechanisms and proteins that remodel chromatin. In fruits, seeds, and vegetables, as well as food supplements, polyphenols are found. Compounds such as these ones are powerful anticancer agents and antioxidants. Gallic acid, kaempferol, curcumin, quercetin, and resveratrol, among others, have potent anti-tumor effects by helping reverse epigenetic changes associated with oncogene activation and tumor suppressor gene inactivation. The role dietary polyphenols plays in restoring epigenetic alterations in cancer cells with a particular focus on DNA methylation and histone modifications was summarized. We also discussed how these natural compounds modulate gene expression at the epigenetic level and described their molecular targets in cancer. It highlights the potential of polyphenols as an alternative therapeutic approach in cancer since they modulate epigenetic activity.
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Li Y. Epigenetic Modifications in Obesity and Type 2 Diabetes. Open Biochem J 2022. [DOI: 10.2174/1874091x-v16-e2206271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Obesity is a chronic condition that is also a risk factor of several other chronic conditions including type 2 diabetes. The effects of maternal obesity and type 2 diabetes on fetal development and offspring health are mediated through the transmission of epigenetic modifications in addition to the possible permanent changes of the organs caused by the intrauterine environment hypothesized by the Developmental Origins of Health and Disease (DOHaD) theory. Epigenetic modifications can be altered by environmental factors including dietary and lifestyle factors. The current priorities include identification and confirmation of the specific epigenetic biomarkers associated with obesity and type 2 diabetes in human subjects and identification of the dietary and lifestyle factors that contribute to each of the identified specific epigenetic biomarkers.
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Vrânceanu M, Galimberti D, Banc R, Dragoş O, Cozma-Petruţ A, Hegheş SC, Voştinaru O, Cuciureanu M, Stroia CM, Miere D, Filip L. The Anticancer Potential of Plant-Derived Nutraceuticals via the Modulation of Gene Expression. PLANTS 2022; 11:plants11192524. [PMID: 36235389 PMCID: PMC9571524 DOI: 10.3390/plants11192524] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022]
Abstract
Current studies show that approximately one-third of all cancer-related deaths are linked to diet and several cancer forms are preventable with balanced nutrition, due to dietary compounds being able to reverse epigenetic abnormalities. An appropriate diet in cancer patients can lead to changes in gene expression and enhance the efficacy of therapy. It has been demonstrated that nutraceuticals can act as powerful antioxidants at the cellular level as well as anticarcinogenic agents. This review is focused on the best studies on worldwide-available plant-derived nutraceuticals: curcumin, resveratrol, sulforaphane, indole-3-carbinol, quercetin, astaxanthin, epigallocatechin-3-gallate, and lycopene. These compounds have an enhanced effect on epigenetic changes such as histone modification via HDAC (histone deacetylase), HAT (histone acetyltransferase) inhibition, DNMT (DNA methyltransferase) inhibition, and non-coding RNA expression. All of these nutraceuticals are reported to positively modulate the epigenome, reducing cancer incidence. Furthermore, the current review addresses the issue of the low bioavailability of nutraceuticals and how to overcome the drawbacks related to their oral administration. Understanding the mechanisms by which nutraceuticals influence gene expression will allow their incorporation into an “epigenetic diet” that could be further capitalized on in the therapy of cancer.
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Affiliation(s)
- Maria Vrânceanu
- Department of Toxicology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Damiano Galimberti
- Italian Association of Anti-Ageing Physicians, Via Monte Cristallo, 1, 20159 Milan, Italy
| | - Roxana Banc
- Department of Bromatology, Hygiene, Nutrition, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
- Correspondence: (R.B.); (O.D.); Tel.: +40-744-367-958 (R.B.); +40-733-040-917 (O.D.)
| | - Ovidiu Dragoş
- Department of Kinetotheraphy and Special Motricity, “1 Decembrie 1918” University of Alba Iulia, 510009 Alba Iulia, Romania
- Correspondence: (R.B.); (O.D.); Tel.: +40-744-367-958 (R.B.); +40-733-040-917 (O.D.)
| | - Anamaria Cozma-Petruţ
- Department of Bromatology, Hygiene, Nutrition, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Simona-Codruţa Hegheş
- Department of Drug Analysis, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Oliviu Voştinaru
- Department of Pharmacology, Physiology and Physiopathology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Magdalena Cuciureanu
- Department of Pharmacology, University of Medicine and Pharmacy “Grigore T. Popa” Iasi, 16 Universităţii Street, 700115 Iași, Romania
| | - Carmina Mariana Stroia
- Department of Pharmacy, Oradea University, 1 Universităţii Street, 410087 Oradea, Romania
| | - Doina Miere
- Department of Bromatology, Hygiene, Nutrition, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Lorena Filip
- Department of Bromatology, Hygiene, Nutrition, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 Pasteur Street, 400349 Cluj-Napoca, Romania
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Joint Effects of Cigarette Smoking and Green Tea Consumption with miR-29b and DNMT3B mRNA Expression in the Development of Lung Cancer. Genes (Basel) 2022; 13:genes13050836. [PMID: 35627221 PMCID: PMC9141651 DOI: 10.3390/genes13050836] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 04/30/2022] [Accepted: 05/05/2022] [Indexed: 12/23/2022] Open
Abstract
In tumor development, increased expression of DNA methyltransferase (DNMT) has been observed. In particular, cigarette smoke and tea polyphenols may influence DNMT3B mRNA expression by regulating microRNA (miR)-29b expression. Herein, we designed a case−control study to evaluate the joint effects of smoking and green tea consumption, with miR-29b and DNMT3B mRNA expression, in lung cancer development. A total of 132 lung cancer patients and 132 healthy controls were recruited to measure miR-29b and DNMT3B mRNA expression in whole blood. Results revealed that lung cancer patients had lower miR-29b expression (57.2 vs. 81.6; p = 0.02) and higher DNMT3B mRNA expression (37.2 vs. 25.8; p < 0.001) than healthy controls. Compared to non-smokers with both higher miR-29b and lower DNMT3B mRNA expression, smokers with both low miR-29b and higher DNMT3B mRNA expression had an elevated risk of lung cancer development (OR 5.12, 95% CI 2.64−9.91). Interactions of smoking with miR-29b or DNMT3B mRNA expression in lung cancer were significant. Interaction of green tea consumption with miR-29b expression and DNMT3B mRNA expression in lung cancer was also significant. Our study suggests that smokers and green tea nondrinkers with lower miR-29b expression and higher DNMT3B mRNA expression are more susceptible to lung cancer development.
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Das S, Juliana N, Yazit NAA, Azmani S, Abu IF. Multiple Myeloma: Challenges Encountered and Future Options for Better Treatment. Int J Mol Sci 2022; 23:1649. [PMID: 35163567 PMCID: PMC8836148 DOI: 10.3390/ijms23031649] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 12/23/2022] Open
Abstract
Multiple myeloma (MM) is a malignant hematological disease. The disease is characterized by the clonal proliferation of malignant plasma cells in the bone marrow. MM accounts for 1.3% of all malignancies and has been increasing in incidence all over the world. Various genetic abnormalities, mutations, and translocation, including epigenetic modifications, are known to contribute to the disease's pathophysiology. The prognosis is good if detected early, or else the outcome is very bad if distant metastasis has already occurred. Conventional treatment with drugs poses a challenge when there is drug resistance. In the present review, we discuss multiple myeloma and its treatment, drug resistance, the molecular basis of epigenetic regulation, the role of natural products in epigenetic regulators, diet, physical activity, addiction, and environmental pollutants, which may be beneficial for clinicians and researchers.
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Affiliation(s)
- Srijit Das
- Department of Human & Clinical Anatomy, College of Medicine & Health Sciences, Sultan Qaboos University, Al-Khoud, Muscat 123, Oman;
| | - Norsham Juliana
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia; (N.A.A.Y.); (S.A.)
| | - Noor Anisah Abu Yazit
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia; (N.A.A.Y.); (S.A.)
| | - Sahar Azmani
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia; (N.A.A.Y.); (S.A.)
| | - Izuddin Fahmy Abu
- Institute of Medical Science Technology, Universiti Kuala Lumpur, Kuala Lumpur 50250, Selangor, Malaysia;
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Fatima N, Baqri SSR, Bhattacharya A, Koney NKK, Husain K, Abbas A, Ansari RA. Role of Flavonoids as Epigenetic Modulators in Cancer Prevention and Therapy. Front Genet 2021; 12:758733. [PMID: 34858475 PMCID: PMC8630677 DOI: 10.3389/fgene.2021.758733] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/26/2021] [Indexed: 12/16/2022] Open
Abstract
Epigenetic regulation involves reversible changes in histones and DNA modifications that can be inherited without any changes in the DNA sequence. Dysregulation of normal epigenetic processes can lead to aberrant gene expression as observed in many diseases, notably cancer. Recent insights into the mechanisms of DNA methylation, histone modifications, and non-coding RNAs involved in altered gene expression profiles of tumor cells have caused a paradigm shift in the diagnostic and therapeutic approaches towards cancer. There has been a surge in search for compounds that could modulate the altered epigenetic landscape of tumor cells, and to exploit their therapeutic potential against cancers. Flavonoids are naturally occurring phenol compounds which are abundantly found among phytochemicals and have potentials to modulate epigenetic processes. Knowledge of the precise flavonoid-mediated epigenetic alterations is needed for the development of epigenetics drugs and combinatorial therapeutic approaches against cancers. This review is aimed to comprehensively explore the epigenetic modulations of flavonoids and their anti-tumor activities.
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Affiliation(s)
- Nishat Fatima
- Department of Chemistry, Shia Postgraduate College, Lucknow, India
| | | | - Atrayee Bhattacharya
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Nii Koney-Kwaku Koney
- Department of Anatomy, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Kazim Husain
- Department of Molecular Medicine, University of South Florida, Tampa, FL, United States
| | - Ata Abbas
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University, Cleveland, OH, United States.,Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Rais A Ansari
- Department of Pharmaceutical Sciences, Nova Southeastern University, Fort Lauderdale, FL, United States
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12
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Akbarialiabad H, Dahroud MD, Khazaei MM, Razmeh S, Zarshenas MM. Green Tea, A Medicinal Food with Promising Neurological Benefits. Curr Neuropharmacol 2021; 19:349-359. [PMID: 32469701 PMCID: PMC8033961 DOI: 10.2174/1570159x18666200529152625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/05/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023] Open
Abstract
Neurological disorders and their sequelae, as of the widespread and critical humans’ complications, affect the body's nervous systems, organ functions, and behaviors. According to WHO, neurological disorders are currently predicted to affect more than one billion people globally. It is well-established that complementary medicine is one of the high accepted interventions that could have been considered for the management of neurological ailments. The current review aimed to compile all the crucial data reporting the investigation on the conspicuous intervention of green tea (made of Camellia sinensis) and related lead compounds (especially l-theanine, epigallocatechin-3-gallate, epicatechin-3-gallate, epicatechin, and epigallocatechin) for their neurological activities, mechanisms of action, and clinical properties. According to the documents, green tea exhibits antidepressant, anti-neurodegenerative (e.g., anti-Parkinson and anti-Alzheimer), as well as neuroprotective effects.Chief among them, for offering novel work, it is worth focusing on several related assessments with great attention to more extensive standardized clinical trials, and subsequently more in-depth pharmacokinetic studies to safely introduce this beneficial medicinal food as a neuro-effective agent.
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Affiliation(s)
- Hossein Akbarialiabad
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Dahri Dahroud
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad M Khazaei
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeed Razmeh
- Neurology Research center, Department of Neurology, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mohammad M Zarshenas
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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13
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Kaleem M, Alhosin M, Khan K, Ahmad W, Hosawi S, Nur SM, Choudhry H, Zamzami MA, Al-Abbasi FA, Javed MDN. Epigenetic Basis of Polyphenols in Cancer Prevention and Therapy. POLYPHENOLS-BASED NANOTHERAPEUTICS FOR CANCER MANAGEMENT 2021:189-238. [DOI: 10.1007/978-981-16-4935-6_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
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14
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Mondal P, Natesh J, Penta D, Meeran SM. Progress and promises of epigenetic drugs and epigenetic diets in cancer prevention and therapy: A clinical update. Semin Cancer Biol 2020; 83:503-522. [PMID: 33309850 DOI: 10.1016/j.semcancer.2020.12.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022]
Abstract
Epigenetic modifications are heritable yet reversible, essential for normal physiological functions and biological development. Aberrant epigenetic modifications, including DNA methylation, histone modification, and non-coding RNA (ncRNA)-mediated gene regulation play a crucial role in cancer progression. In cellular reprogramming, irregular epigenomic modulations alter cell signaling pathways and the expression of tumor suppressor genes and oncogenes, resulting in cancer growth and metastasis. Therefore, alteration of epigenetic-status in cancer cells can be used as a potential target for cancer therapy. Several synthetic epigenetic inhibitors (epi-drugs) and natural epigenetic modulatory bioactives (epi-diets) have been shown to have the potential to alter the aberrant epigenetic status and inhibit cancer progression. Further, the use of combinatorial approaches with epigenetic drugs and diets has brought promising outcomes in cancer prevention and therapy. In this article, we have summarized the epigenetic modulatory activities of epi-drugs, epi-diets, and their combination against various cancers. We have also compiled the preclinical and clinical status of these epigenetic modulators in different cancers.
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Affiliation(s)
- Priya Mondal
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Jagadish Natesh
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Dhanamjai Penta
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Syed Musthapa Meeran
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Xie LW, Cai S, Zhao TS, Li M, Tian Y. Green tea derivative (-)-epigallocatechin-3-gallate (EGCG) confers protection against ionizing radiation-induced intestinal epithelial cell death both in vitro and in vivo. Free Radic Biol Med 2020; 161:175-186. [PMID: 33069855 DOI: 10.1016/j.freeradbiomed.2020.10.012] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/06/2020] [Accepted: 10/11/2020] [Indexed: 12/20/2022]
Abstract
Radiation-induced intestinal injury (RIII) occurs during instances of intentional or accidental radiation exposure. However, there are few effective treatments available for the prevention or mitigation of RIII currently. (-)-Epigallocatechin-3-gallate (EGCG), a major polyphenol in green tea, possesses potent antioxidant activity and has been shown to be effective in ameliorating many oxidative stress-related diseases. The therapeutic effects and mechanism of EGCG on RIII have not yet been determined. In the present study, we investigated whether EGCG confers radioprotection against RIII. Our data demonstrated that administration of EGCG not only prolonged the survival time of lethally irradiated mice, but also reduced radiation-induced intestinal mucosal injury. Treatment with EGCG significantly increased the number of Lgr5+ intestinal stem cells (ISCs) and their progeny Ki67+ cells, and reduced radiation-induced DNA damage and apoptosis. Besides, EGCG displayed the same radioprotective effects in human intestinal epithelial HIEC cells as in mice, characterized by a decrease in the number of γH2AX foci and ferroptosis. Moreover, EGCG decreased the level of reactive oxygen species (ROS) and activated the transcription factor Nrf2 and its downstream targets comprising antioxidant proteins Slc7A11, HO-1 and GPX4. Treatment with the Nrf2 inhibitor ML385 abolished the protective effects of EGCG, indicating that Nrf2 activation is essential for EGCG activity. Taken together, our findings demonstrated that EGCG protects against RIII by scavenging ROS and inhibiting apoptosis and ferroptosis through the Nrf2 signal pathway, which could be a promising medical countermeasure for the alleviation of RIII.
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Affiliation(s)
- Li-Wei Xie
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Shang Cai
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Tian-Shu Zhao
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Ming Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Ye Tian
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China.
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Bhattacharya R, Chatterjee R, Mandal AKA, Mukhopadhyay A, Basu S, Giri AK, Chatterji U, Bhattacharjee P. Theaflavin-Containing Black Tea Extract: A Potential DNA Methyltransferase Inhibitor in Human Colon Cancer Cells and Ehrlich Ascites Carcinoma-Induced Solid Tumors in Mice. Nutr Cancer 2020; 73:2447-2459. [PMID: 33030063 DOI: 10.1080/01635581.2020.1828943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Tea is the most popularly consumed beverage in the world. Theaflavin and thearubigins are the key bioactive compounds of black tea that have anticarcinogenic properties as reported in several studies. However, the epigenetic potential of these compounds has not yet been explored. DNA methyltransferase (DNMT) enzymes induce methylation of DNA at cytosine residues and play a significant role in epigenetic regulation and cancer therapy. The present study has explored the role of black tea as a DNMT inhibitor in the prevention of cancer. Herein, the effect of theaflavin has been studied in colon cancer cell line (HCT-116) and EAC-induced solid tumors in mice. It was found that theaflavin prevented cell proliferation and inhibited tumor progression as well. In silico study showed that theaflavin interacted with DNMT1 and DNMT3a enzymes and blocked their activity. Theaflavin also decreased DNMT activity In Vitro and In Vivo as evident from the DNMT activity assay. Results of immunohistochemistry revealed that theaflavin reduced DNMT expression in the tumors of mice. Taken together, our findings showed that theaflavin has a potential role as a DNMT inhibitor in HCT-116 cell line and EAC induced solid tumors in mice.
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Affiliation(s)
| | - Ranodeep Chatterjee
- Cancer Research Lab, Department of Zoology, University of Calcutta, Kolkata, India
| | | | | | - Soumalee Basu
- Department of Microbiology, University of Calcutta, Kolkata, India
| | - Ashok Kumar Giri
- Molecular Genetics Division, CSIR- Indian Institute of Chemical Biology, Kolkata, India
| | - Urmi Chatterji
- Cancer Research Lab, Department of Zoology, University of Calcutta, Kolkata, India
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Qin L, Guo L, Xu B, Hsueh CC, Jiang M, Chen BY. Exploring community evolutionary characteristics of microbial populations with supplementation of Camellia green tea extracts in microbial fuel cells. J Taiwan Inst Chem Eng 2020; 113:214-222. [PMID: 32904523 PMCID: PMC7455116 DOI: 10.1016/j.jtice.2020.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 08/02/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023]
Abstract
This first-attempt study deciphered combined characteristics of species evolution and bioelectricity generation of microbial community in microbial fuel cells (MFCs) supplemented with Camellia green tea (GT) extracts for biomass energy extraction. Prior studies indicated that polyphenols-rich extracts as effective redox mediators (RMs) could exhibit significant electrochemical activities to enhance power generation in MFCs. However, the supplementation of Camellia GT extract obtained at room temperature with significant redox capabilities into MFCs unexpectedly exhibited obvious inhibitory effect towards power generation. This systematic study indicated that the presence of antimicrobial components (especially catechins) in GT extract might significantly alter the distribution of microbial community, in particular a decrease of microbial diversity and evenness. For practical applications to different microbial systems, pre-screening criteria of selecting biocompatible RMs should not only consider their promising redox capabilities (abiotic), but also possible inhibitory potency (biotic) to receptor microbes. Although Camellia tea extract was well-characterized as GRAS energy drink, some contents (e.g., catechins) may still express inhibition towards organisms and further assessment upon biotoxicity may be inevitably required for practice.
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Affiliation(s)
- Lianjie Qin
- School of Environmental and Materials Engineering, Yan-Tai University, Yantai 264005, China
| | - Lili Guo
- School of Environmental and Materials Engineering, Yan-Tai University, Yantai 264005, China
| | - Bin Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
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18
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Roque-Jiménez JA, Mendoza-Martínez GD, Vázquez-Valladolid A, Guerrero-González MDLL, Flores-Ramírez R, Pinos-Rodriguez JM, Loor JJ, Relling AE, Lee-Rangel HA. Supplemental Herbal Choline Increases 5-hmC DNA on Whole Blood from Pregnant Ewes and Offspring. Animals (Basel) 2020; 10:ani10081277. [PMID: 32727060 PMCID: PMC7460248 DOI: 10.3390/ani10081277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 11/24/2022] Open
Abstract
Simple Summary DNA hydroxymethylation (5-hmC) is an epigenetic mechanism that modifies the five positions of cytosine through the addition of a hydroxymethyl group to DNA. In the last decade, the use of herbal products, marketed as dietary supplements or “nutraceuticals” in some countries, has increased rapidly; however, there is a lack of evidence on the extent to which formulas used during pregnancy cause epigenetic changes in the fetus. The aim of this study was to characterize the effects of supplementing an herbal choline source (BCho) on 5-hmC DNA in whole blood from gestating ewes and their offspring. Such data would provide evidence of nutritional programming effects. Abstract Herbal formulas during pregnancy have been used in developing countries. Despite that, the potential effects on the mother and offspring and whether those supplements elicit epigenetic modifications is still unknown. Therefore, our objectives were to determine the effects of supplemental herbal choline source (BCho) on the percentage of 5-hmC in whole blood from gestating ewes and their offspring, as well as determining the milk quality and growth of the offspring. Thirty-five gestating Rambouillet ewes were randomly assigned to five treatments: T1, supplementation of 4 g per day (gd−1) of BCho during the first third of gestation; T2, supplementation of 4 gd−1 of BCho during the second third of gestation; T3, supplementation of 4 gd−1 of BCho during the last third of gestation; T4, supplementation of 4 gd−1 of BCho throughout gestation; and T5, no BCho supplementation (control). For the 5-hmC DNA analysis, whole blood from ewes was sampled before pregnancy and at each third of gestation (50 days). Whole blood from lambs was sampled five weeks after birth. The evaluation of the nutritional programming effects was conducted through the percentages of 5-hmC in the lambs. Compared with other treatments, the whole blood from ewes supplemented during T1 and T4 had the greatest 5-hmC percentages (p < 0.05). However, only ewes fed BCho throughout gestation (T4) maintained the greatest percentages of 5-hmC (p < 0.05). The lamb growth performance indicated that the BCho maternal supplementation did not affect the nutritional programming. However, the lambs born from ewes supplemented during T2 had the greatest 5-hmC percentages (p < 0.05). Our data suggest that ewes supplemented during T4 with BCho increase and maintain the percentages of 5-hmC in whole blood, and the offspring born from ewes supplemented with BCho during T2 maintained the greatest percentages of 5-hmC 35 d after they were born.
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Affiliation(s)
- José Alejandro Roque-Jiménez
- Facultad de Agronomía y Veterinaria, Universidad Autonoma de San Luis Potosí, Carretera Federal 57 Km 14.5, Ejido Palma de la Cruz, Soledad de Graciano Sánchez, San Luis Potosí 78321, Mexico; (J.A.R.-J.); (A.V.-V.); (M.d.l.L.G.-G.)
| | | | - Anayeli Vázquez-Valladolid
- Facultad de Agronomía y Veterinaria, Universidad Autonoma de San Luis Potosí, Carretera Federal 57 Km 14.5, Ejido Palma de la Cruz, Soledad de Graciano Sánchez, San Luis Potosí 78321, Mexico; (J.A.R.-J.); (A.V.-V.); (M.d.l.L.G.-G.)
| | - María de la Luz Guerrero-González
- Facultad de Agronomía y Veterinaria, Universidad Autonoma de San Luis Potosí, Carretera Federal 57 Km 14.5, Ejido Palma de la Cruz, Soledad de Graciano Sánchez, San Luis Potosí 78321, Mexico; (J.A.R.-J.); (A.V.-V.); (M.d.l.L.G.-G.)
| | - Rogelio Flores-Ramírez
- Centro de Investigación Aplicada en Ambiente y Salud, CIACYT—Medicina, Universidad Autonoma de San Luis Potosí, Lomas de San Luis 78210, Mexico;
| | | | - Juan J. Loor
- Department of Animal Sciences, Division of Nutritional Sciences, University of Illinois, 262 Animal Sciences Laboratory, Urbana, IL 61801, USA;
| | - Alejandro Enrique Relling
- Department of Animal Science, The Ohio State University, Ohio Agricultural Research and Development Center (OARDC), Wooster, OH 44691, USA;
| | - Héctor Aarón Lee-Rangel
- Facultad de Agronomía y Veterinaria, Universidad Autonoma de San Luis Potosí, Carretera Federal 57 Km 14.5, Ejido Palma de la Cruz, Soledad de Graciano Sánchez, San Luis Potosí 78321, Mexico; (J.A.R.-J.); (A.V.-V.); (M.d.l.L.G.-G.)
- Correspondence: ; Tel.: +52-444-852-4056
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Lee J, Papa F, Jaini PA, Alpini S, Kenny T. An Epigenetics-Based, Lifestyle Medicine-Driven Approach to Stress Management for Primary Patient Care: Implications for Medical Education. Am J Lifestyle Med 2020; 14:294-303. [PMID: 32477032 PMCID: PMC7232902 DOI: 10.1177/1559827619847436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/26/2019] [Accepted: 04/10/2019] [Indexed: 12/22/2022] Open
Abstract
Over 75% of patients in the primary care setting present with stress-related complaints. Curiously, patients and health care providers all too often see stress as a relatively benign sequela of many common illnesses such as heart disease, cancer, lung disease, dementia, diabetes, and mental illness. Unfortunately, various day-to-day lifestyle choices and environmental factors, unrelated to the presence of any disease, can cause stress sufficient to contribute to the development of various diseases/disorders and suboptimal health. There is evidence suggesting that counseling in stress management-oriented therapeutic interventions (as offered by lifestyle medicine-oriented practitioners) may prevent or reduce the onset, severity, duration, and/or overall burden of stress-related illnesses. Such counseling often involves considerations such as the patient's nutrition, physical activity, interest in/capacity to meditate, drug abuse/cessation, and so on. Unfortunately, lifestyle medicine-oriented approaches to stress management are rarely offered in primary care-the patient care arena wherein such counseling would likely be best received by patients. Would health care outcomes improve if primary care providers offered counseling in both stress management and positive lifestyle choices? The purpose of this article is to provide both primary care practitioners and educators in health care training programs with an introductory overview of epigenetics. An emerging field of science offering insights into how factors such as stress and lifestyle choices interact with our genes in ways that can both positively and negatively impact the various micro (eg, cellular) through macro (eg, physiologic, pathophysiologic) processes that determine our tendencies toward illness or wellness. A deeper understanding of epigenetics, as provided herein, should enable primary care providers and medical educators to more confidently advocate for the primary benefits associated with counseling in both stress reduction and the pursuit of healthy lifestyle choices.
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Affiliation(s)
- Jenny Lee
- Preventive Medicine, Loma Linda University, Loma Linda, California (JL)
- UNT Health Science Center, Fort Worth, Texas (FP, SA, TK)
- John Peter Smith Hospital, Fort Worth, Texas (PJ)
| | - Frank Papa
- Frank Papa, DO, PhD, Medical Education, UNT Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX 76107; e-mail:
| | - Paresh Atu Jaini
- Preventive Medicine, Loma Linda University, Loma Linda, California (JL)
- UNT Health Science Center, Fort Worth, Texas (FP, SA, TK)
- John Peter Smith Hospital, Fort Worth, Texas (PJ)
| | - Sarah Alpini
- Preventive Medicine, Loma Linda University, Loma Linda, California (JL)
- UNT Health Science Center, Fort Worth, Texas (FP, SA, TK)
- John Peter Smith Hospital, Fort Worth, Texas (PJ)
| | - Tim Kenny
- Preventive Medicine, Loma Linda University, Loma Linda, California (JL)
- UNT Health Science Center, Fort Worth, Texas (FP, SA, TK)
- John Peter Smith Hospital, Fort Worth, Texas (PJ)
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20
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Liu Y, Song Z, Chen X, Zhu Z, Zhang L, Hong Z, Chai Y. Nuclear magnetic resonance-based plasma metabolomics revealed the protective effect of tea polyphenols on sulfur mustard-induced injury in rats. J Pharm Biomed Anal 2020; 186:113278. [PMID: 32380352 DOI: 10.1016/j.jpba.2020.113278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/18/2020] [Accepted: 03/22/2020] [Indexed: 12/01/2022]
Abstract
Tea polyphenols (TP) are the major antioxidant components from tea, which could be beneficial to oxidative stress injury, such as sulfur mustard (SM) exposure. However, the holistic efficacy of TP on SM poisoning remains unexplored and needs further investigation. In this study, Nuclear magnetic resonance(NMR)-based metabolomics along with multivariate statistical analysis was used to explore the metabolic alteration after SM injury and the protective mechanism of TP. Thirteen potential plasma biomarkers of SM injury were identified, which primarily related to synthesis of ketone bodies, arginine and proline metabolism, butanoate metabolism and alanine aspartate and glutamate metabolism. After TP pre-treatment, the biomarkers were mostly restored to normal levels, which suggested that TP provided effective protection against SM injury and might play its role by rebalancing disordered metabolism pathways. This work enhanced our comprehension of the metabolic profiling of SM injury and revealed the protective mechanism of TP.
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Affiliation(s)
- Yue Liu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, 200433, China
| | - Zhiqiang Song
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Xiaofei Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Zhenyu Zhu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, 200433, China
| | - Liming Zhang
- Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, China
| | - Zhanying Hong
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, 200433, China.
| | - Yifeng Chai
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, 200433, China.
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21
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Moody R, Wilson K, Jaworowski A, Plebanski M. Natural Compounds with Potential to Modulate Cancer Therapies and Self-Reactive Immune Cells. Cancers (Basel) 2020; 12:cancers12030673. [PMID: 32183059 PMCID: PMC7139800 DOI: 10.3390/cancers12030673] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer-related deaths are approaching 10 million each year. Survival statistics for some cancers, such as ovarian cancer, have remained unchanged for decades, with women diagnosed at stage III or IV having over 80% chance of a lethal cancer recurrence after standard first-line treatment (reductive surgery and chemotherapy). New treatments and adjunct therapies are needed. In ovarian cancer, as in other cancers, the immune response, particularly cytotoxic (CD8+) T cells are correlated with a decreased risk of recurrence. As well as completely new antigen targets resulting from DNA mutations (neo-antigens), these T cells recognize cancer-associated overexpressed, re-expressed or modified self-proteins. However, there is concern that activation of self-reactive responses may also promote off-target pathology. This review considers the complex interplay between cancer-reactive and self-reactive immune cells and discusses the potential uses for various leading immunomodulatory compounds, derived from plant-based sources, as a cancer therapy option or to modulate potential autoimmune pathology. Along with reviewing well-studied compounds such as curcumin (from turmeric), epigallocatechin gallate (EGCG, from green tea) and resveratrol (from grapes and certain berries), it is proposed that compounds from novel sources, for example, native Australian plants, will provide a useful source for the fine modulation of cancer immunity in patients.
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Leri M, Scuto M, Ontario ML, Calabrese V, Calabrese EJ, Bucciantini M, Stefani M. Healthy Effects of Plant Polyphenols: Molecular Mechanisms. Int J Mol Sci 2020; 21:E1250. [PMID: 32070025 PMCID: PMC7072974 DOI: 10.3390/ijms21041250] [Citation(s) in RCA: 225] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 02/08/2023] Open
Abstract
The increasing extension in life expectancy of human beings in developed countries is accompanied by a progressively greater rate of degenerative diseases associated with lifestyle and aging, most of which are still waiting for effective, not merely symptomatic, therapies. Accordingly, at present, the recommendations aimed at reducing the prevalence of these conditions in the population are limited to a safer lifestyle including physical/mental exercise, a reduced caloric intake, and a proper diet in a convivial environment. The claimed health benefits of the Mediterranean and Asian diets have been confirmed in many clinical trials and epidemiological surveys. These diets are characterized by several features, including low meat consumption, the intake of oils instead of fats as lipid sources, moderate amounts of red wine, and significant amounts of fresh fruit and vegetables. In particular, the latter have attracted popular and scientific attention for their content, though in reduced amounts, of a number of molecules increasingly investigated for their healthy properties. Among the latter, plant polyphenols have raised remarkable interest in the scientific community; in fact, several clinical trials have confirmed that many health benefits of the Mediterranean/Asian diets can be traced back to the presence of significant amounts of these molecules, even though, in some cases, contradictory results have been reported, which highlights the need for further investigation. In light of the results of these trials, recent research has sought to provide information on the biochemical, molecular, epigenetic, and cell biology modifications by plant polyphenols in cell, organismal, animal, and human models of cancer, metabolic, and neurodegenerative pathologies, notably Alzheimer's and Parkinson disease. The findings reported in the last decade are starting to help to decipher the complex relations between plant polyphenols and cell homeostatic systems including metabolic and redox equilibrium, proteostasis, and the inflammatory response, establishing an increasingly solid molecular basis for the healthy effects of these molecules. Taken together, the data currently available, though still incomplete, are providing a rationale for the possible use of natural polyphenols, or their molecular scaffolds, as nutraceuticals to contrast aging and to combat many associated pathologies.
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Affiliation(s)
- Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.L.); (M.B.); (M.S.)
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Firenze, 50139 Florence, Italy
| | - Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, Torre Biologica, Via Santa Sofia, 97-95125 Catania, Italy; (M.S.); (M.L.O.); (V.C.)
| | - Maria Laura Ontario
- Department of Biomedical and Biotechnological Sciences, University of Catania, Torre Biologica, Via Santa Sofia, 97-95125 Catania, Italy; (M.S.); (M.L.O.); (V.C.)
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, University of Catania, Torre Biologica, Via Santa Sofia, 97-95125 Catania, Italy; (M.S.); (M.L.O.); (V.C.)
| | - Edward J. Calabrese
- Department of Environmental Health Sciences, School of Public Health and Health Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.L.); (M.B.); (M.S.)
| | - Massimo Stefani
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.L.); (M.B.); (M.S.)
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Rasekhian M, Tavallaei O, Marzbany M. Combinational treatments for breast cancer. JOURNAL OF REPORTS IN PHARMACEUTICAL SCIENCES 2020. [DOI: 10.4103/jrptps.jrptps_89_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Karalexi MA, Dessypris N, Clavel J, Metayer C, Erdmann F, Orsi L, Kang AY, Schüz J, Bonaventure A, Greenop KR, Milne E, Petridou ET. Coffee and tea consumption during pregnancy and risk of childhood acute myeloid leukemia: A Childhood Leukemia International Consortium (CLIC) study. Cancer Epidemiol 2019; 62:101581. [PMID: 31416015 DOI: 10.1016/j.canep.2019.101581] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Dietary habits during pregnancy have been inconsistently linked to childhood acute myeloid leukemia (AML), given the putative intrauterine onset of the disease as a result of triggering events during the critical period of fetal hematopoiesis. We investigated the potential association of maternal coffee and tea consumption during pregnancy with childhood AML risk, pooling primary data from eight case-control studies participating in the Childhood Leukemia International Consortium. METHODS Information on coffee and/or tea consumption was available for 444 cases and 1255 age- and sex-matched controls, on coffee consumption for 318 cases and 971 controls and on tea consumption for 388 cases and 932 controls. Categories for cups of daily coffee/tea consumption were created in order to explore potential dose-response associations. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression. RESULTS Associations were found neither in the analysis on coffee or tea nor in the analysis on coffee only consumption (any versus no). A positive association with increasing coffee intake was observed (>1 cup per day; OR: 1.40, 95% CI: 1.03-1.92, increment of one cup per day; OR: 1.18, 95% CI: 1.01-1.39). No associations were observed with tea consumption. Interaction analyses showed non-significant associations between coffee/tea and smoking. Hyperdiploidy was inversely associated with tea consumption, with other cytogenetic markers having no association with coffee/tea. CONCLUSION Given the widespread consumption of caffeinated beverages among pregnant women, our finding is of important public health relevance, suggesting adverse effects of maternal coffee consumption during pregnancy in the offspring.
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Affiliation(s)
- Maria A Karalexi
- Department of Hygiene, Epidemiology and Medical Statistics Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nick Dessypris
- Department of Hygiene, Epidemiology and Medical Statistics Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Jacqueline Clavel
- INSERM U1153, Epidemiology and Biostatistics Sorbonne Paris Cité Center (CRESS), Epidemiology of Childhood and Adolescent Cancers Team (EPICEA), Paris-Descartes University, Villejuif, France; RNCE - National Registry of Childhood Cancers, Inserm, Villejuif and CHU de Nancy, Villejuif, France
| | - Catherine Metayer
- School of Public Health, University of California, Berkeley, 1995 University Avenue, Suite 460, Berkeley, CA 94704-1070, USA
| | - Friederike Erdmann
- Section of Environment and Radiation, International Agency for Research on Cancer, Lyon, France; Childhood Cancer Research Group, Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen, Denmark
| | - Laurent Orsi
- INSERM U1153, Epidemiology and Biostatistics Sorbonne Paris Cité Center (CRESS), Epidemiology of Childhood and Adolescent Cancers Team (EPICEA), Paris-Descartes University, Villejuif, France
| | - Alice Y Kang
- School of Public Health, University of California, Berkeley, 1995 University Avenue, Suite 460, Berkeley, CA 94704-1070, USA
| | - Joachim Schüz
- Section of Environment and Radiation, International Agency for Research on Cancer, Lyon, France
| | - Audrey Bonaventure
- INSERM U1153, Epidemiology and Biostatistics Sorbonne Paris Cité Center (CRESS), Epidemiology of Childhood and Adolescent Cancers Team (EPICEA), Paris-Descartes University, Villejuif, France; Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Kathryn R Greenop
- Telethon Kids Institute, University of Western Australia, PO Box 855, West Perth, WA 6872, Australia
| | - Elizabeth Milne
- Telethon Kids Institute, University of Western Australia, PO Box 855, West Perth, WA 6872, Australia
| | - Eleni Th Petridou
- Department of Hygiene, Epidemiology and Medical Statistics Medical School, National and Kapodistrian University of Athens, Athens, Greece; Department of Clinical Epidemiology, Department of Medicine, Karolinska Institute, Stockholm, Sweden.
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Meng XH, Li N, Zhu HT, Wang D, Yang CR, Zhang YJ. Plant Resources, Chemical Constituents, and Bioactivities of Tea Plants from the Genus Camellia Section Thea. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5318-5349. [PMID: 30449099 DOI: 10.1021/acs.jafc.8b05037] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Tea, as one of the most popular beverages with various bioactivities, is commonly produced from the fresh leaves of two widely cultivated tea plants, Camellia sinensis and C. sinensis var. assamica. Both plants belong to the genus Camellia section Thea, which was considered to have 12 species and 6 varieties according to Min's taxonomic system. Most species, except the cultivated species, are known as wild tea plants and have been exploited and utilized to produce tea by the local people of its growing areas. Thus far, six species and varieties have been phytochemically studied, leading to the identification of 398 compounds, including hydrolyzable tannins, flavan-3-ols, flavonoids, terpenoids, alkaloids, and other phenolic and related compounds. Various beneficial health effects were reported for tea and its components, involving antioxidant, antitumor, antimutagenic, antidiabetic, hypolipidemic, anti-inflammatory, antimicrobial, antiviral, antifungal, neuroprotective, hepatoprotective, etc. In this review, the geographical distribution of tea plants and the chemical constituents (1-398) reported from the genus Camellia section Thea and some tea products (green, black, oolong, and pu-erh tea) that have ever been studied between 1970 and 2018 have been summarized, taking species as the main hint, and the main biological activities are also discussed.
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Affiliation(s)
- Xiu-Hua Meng
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Na Li
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Hong-Tao Zhu
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
| | - Dong Wang
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
| | - Chong-Ren Yang
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
| | - Ying-Jun Zhang
- State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming , Yunnan 650201 , People's Republic of China
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Schnekenburger M, Dicato M, Diederich MF. Anticancer potential of naturally occurring immunoepigenetic modulators: A promising avenue? Cancer 2019; 125:1612-1628. [PMID: 30840315 DOI: 10.1002/cncr.32041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/29/2018] [Accepted: 01/25/2019] [Indexed: 12/19/2022]
Abstract
The immune system represents the major primary defense line against carcinogenesis and acts by identifying and eradicating nascent transformed cells. A growing body of evidence is indicating that aberrant epigenetic reprogramming plays a key role in tumor immune escape through: 1) impaired efficient recognition of neoplastic cells by the immune system, resulting from a downregulation or loss of the expression of tumor-associated antigens, human leukocyte antigens, antigen processing and presenting machinery, and costimulatory molecule genes; 2) aberrant expression of immune checkpoint proteins and their ligands; and 3) modification of cytokine profiles and tumor-associated immune cell populations toward an immunosuppressive state in the tumor microenvironment. Consistent with the inherent reversibility of epigenetic alterations, epigenetic drugs, including DNA methyltransferase and histone deacetylase inhibitors, have the unique potential to favorably modify the tumor microenvironment, restore tumor recognition and stimulate an antitumor immune response. The objective of this review is to highlight selected, naturally occurring epigenetic modulators, namely, butyrate, curcumin, (-)-epigallocatechin-3-gallate, resveratrol, romidepsin, and trichostatin A, with a special focus on their antitumor immune properties.
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Affiliation(s)
- Michael Schnekenburger
- Laboratory of Molecular and Cellular Biology of Cancer, Kirchberg Hospital, Luxembourg, Luxembourg
| | - Mario Dicato
- Laboratory of Molecular and Cellular Biology of Cancer, Kirchberg Hospital, Luxembourg, Luxembourg
| | - Marc F Diederich
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
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Molecular Mechanisms and Bioavailability of Polyphenols in Prostate Cancer. Int J Mol Sci 2019; 20:ijms20051062. [PMID: 30823649 PMCID: PMC6429226 DOI: 10.3390/ijms20051062] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/20/2019] [Accepted: 02/25/2019] [Indexed: 02/06/2023] Open
Abstract
Prostate cancer is the one of the most frequently diagnosed cancers among men over the age of 50. Several lines of evidence support the observation that polyphenols have preventive and therapeutic effects in prostate cancer. Moreover, prostate cancer is ideal for chemoprevention due to its long latency. We propose here an equilibrated lifestyle with a diet rich in polyphenols as prophylactic attempts to slow down the progression of localized prostate cancer or prevent the occurrence of the disease. In this review, we will first summarize the molecular mechanisms of polyphenols in prostate cancer with a focus on the antioxidant and pro-oxidant effects, androgen receptors (AR), key molecules involved in AR signaling and their transactivation pathways, cell cycle, apoptosis, angiogenesis, metastasis, genetic aspects, and epigenetic mechanisms. The relevance of the molecular mechanisms is discussed in light of current bioavailability data regarding the activity of polyphenols in prostate cancer. We also highlight strategies for improving the bioavailability of polyphenols. We hope that this review will lead to further research regarding the bioavailability and the role of polyphenols in prostate cancer prevention and treatment.
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Zhou H, Wu W, Wang F, Qi H, Cheng Z. Tea consumption is associated with decreased risk of oral cancer: A comprehensive and dose-response meta-analysis based on 14 case-control studies (MOOSE compliant). Medicine (Baltimore) 2018; 97:e13611. [PMID: 30572470 PMCID: PMC6320052 DOI: 10.1097/md.0000000000013611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The associations of tea consumption with risk of oral cancer remain not clear. The present meta-analysis aims to clarify the real relationship between tea intake and the risk of oral cancer and quantifies the potential dose-response relationship between them.A Web search was performed within Pubmed, Embase, and Web of Science databases to identify potential studies that evaluated the relationship between tea consumption and the risk of oral cancer on Mar 21th, 2018 without language restriction. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were extracted and combined to evaluate the strength of associations. Dose-response analysis was performed to quantitate the relationship between tea intake and risk of oral cancer.Total 14 articles were included in the final analysis. The pooled OR for evaluating the risk of oral cancer and tea intake was 0.700 (95% CI = 0.609-0.805, P <.001). The linearity model of dose-response analysis indicated that with increased 1 cup daily, the risk of oral cancer decreased by 6.2% degree (OR = 0.938, 95% CI = 0.922-0.955, P <.001). Subgroup analysis indicated an inverse association between tea intake and the risk of oral cancer except subgroup analysis of black tea and American people.These results suggest tea intake provides protection against oral cancer carcinogenesis. Additionally, more large-scale pooling and high-quality studies are necessary for detecting the precise relationship between tea intake and oral cancer risk in the future.
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Affiliation(s)
- Hao Zhou
- Department of Oral and Maxillofacial Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Weiwei Wu
- Department of Oral and Maxillofacial Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Fengqin Wang
- Department of Oral and Maxillofacial Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Huizhong Qi
- Jingchu University of Technology, Jingmen, Hubei Province, P. R. China
| | - Zhigang Cheng
- Department of Oral and Maxillofacial Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
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Kundur S, Prayag A, Selvakumar P, Nguyen H, McKee L, Cruz C, Srinivasan A, Shoyele S, Lakshmikuttyamma A. Synergistic anticancer action of quercetin and curcumin against triple‐negative breast cancer cell lines. J Cell Physiol 2018; 234:11103-11118. [DOI: 10.1002/jcp.27761] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/29/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Sai Kundur
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Amrita Prayag
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Priyanga Selvakumar
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Hung Nguyen
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Lloyd McKee
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Clairissa Cruz
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Asha Srinivasan
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Sunday Shoyele
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
| | - Ashakumary Lakshmikuttyamma
- Department of Pharmaceutical Sciences Jefferson College of Pharmacy, Thomas Jefferson University Philadelphia Pennsylvania
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Qiu T, Wu D, Yang L, Ye H, Wang Q, Cao Z, Tang K. Exploring the Mechanism of Flavonoids Through Systematic Bioinformatics Analysis. Front Pharmacol 2018; 9:918. [PMID: 30158870 PMCID: PMC6104453 DOI: 10.3389/fphar.2018.00918] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 07/26/2018] [Indexed: 12/23/2022] Open
Abstract
Flavonoids are the largest class of plant polyphenols, with common structure of diphenylpropanes, consisting of two aromatic rings linked through three carbons and are abundant in both daily diets and medicinal plants. Fueled by the recognition of consuming flavonoids to get better health, researchers became interested in deciphering how flavonoids alter the functions of human body. Here, systematic studies were performed on 679 flavonoid compounds and 481 corresponding targets through bioinformatics analysis. Multiple human diseases related pathways including cancers, neuro-disease, diabetes, and infectious diseases were significantly regulated by flavonoids. Specific functions of each flavonoid subclass were further analyzed in both target and pathway level. Flavones and isoflavones were significantly enriched in multi-cancer related pathways, flavan-3-ols were found focusing on cellular processing and lymphocyte regulation, flavones preferred to act on cardiovascular related activities and isoflavones were closely related with cell multisystem disorders. Relationship between chemical constitution fragment and biological effects indicated that different side chain could significantly affect the biological functions of flavonoids subclasses. Results will highlight the common and preference functions of flavonoids and their subclasses, which concerning their pharmacological and biological properties.
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Affiliation(s)
- Tianyi Qiu
- Institute of Biomedical Sciences, Fudan University, Shanghai, China
| | - Dingfeng Wu
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - LinLin Yang
- Hebei Key Laboratory of Metabolic Diseases and Clinical Medicine Research Center, Hebei General Hospital, Hebei, China
| | - Hao Ye
- Sinotech Genomics Ltd., Shanghai, China.,East China University of Science and Technology, Shanghai, China
| | - Qiming Wang
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhiwei Cao
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Kailin Tang
- School of Life Sciences and Technology, Tongji University, Shanghai, China
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Pal D, Sur S, Roy R, Mandal S, Kumar Panda C. Epigallocatechin gallate in combination with eugenol or amarogentin shows synergistic chemotherapeutic potential in cervical cancer cell line. J Cell Physiol 2018; 234:825-836. [PMID: 30078217 DOI: 10.1002/jcp.26900] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/13/2018] [Indexed: 01/07/2023]
Abstract
In this study, antitumor activity of epigallocatechin gallate (EGCG; major component of green tea polyphenol), eugenol (active component of clove), and amarogentin (active component of chirata plant) either alone or in combination were evaluated in Hela cell line. It was evident that EGCG with eugenol-amrogentin could highly inhibit the cellular proliferation and colony formation than individual treatments. Induction of apoptosis was also higher after treatment with EGCG in combination with eugenol-amrogentin than individual compound treatments. The antiproliferative effect of these compounds was due to downregulation of cyclinD1 and upregulation of cell cycle inhibitors LIMD1, RBSP3, and p16 at G1/S phase of cell cycle. Treatment of these compounds could induce promoter hypomethylation of LimD1 and P16 genes as a result of reduced expression of DNA methyltransferase 1 (DNMT1). Thus, our study indicated the better chemotherapeutic effect of EGCG in combination with eugenol-amarogentin in Hela cell line. The chemotherapeutic effect might be due to the epigenetic modification particularly DNA hypomethylation through downregulation of DNMT1.
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Affiliation(s)
- Debolina Pal
- Department of Oncogene Regulation, Chittarangan National Cancer Institute, Kolkata, India
| | - Subhayan Sur
- Department of Oncogene Regulation, Chittarangan National Cancer Institute, Kolkata, India
| | - Rituparna Roy
- Department of Oncogene Regulation, Chittarangan National Cancer Institute, Kolkata, India
| | - Suvra Mandal
- Department of Chemistry, National Research Institute for Ayurvedic Drug Development, Kolkata, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittarangan National Cancer Institute, Kolkata, India
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Chung JO, Lee SB, Jeong KH, Song JH, Kim SK, Joo KM, Jeong HW, Choi JK, Kim JK, Kim WG, Shin SS, Shim SM. Quercetin and fisetin enhanced the small intestine cellular uptake and plasma levels of epi-catechins in in vitro and in vivo models. Food Funct 2018; 9:234-242. [PMID: 29168878 DOI: 10.1039/c7fo01576c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Quercetin and fisetin, known as catechol-containing flavonoids, could positively affect the absorption of catechins due to their strong affinity for catechol-O-methyl transferase (COMT), which can methylate and cause the excretion of catechins. The current study examined the effect of quercetin and fisetin on the absorption of epi-catechins (ECs) by using a Caco-2 cell line and an in vivo model. The intestinal transport of total catechins by Caco-2 cells was enhanced from 1.3- to 1.6-fold and 1.4- to 1.7-fold by adding quercetin and fisetin, respectively, compared to the control. It was even higher in the treatment with a mixture of quercetin and fisetin. While EC had the highest value of intestinal transport (169% of the control) in 10% quercetin treatment, EGC (235%), EGCG (244%), and ECG (242%) were significantly transported in the treatment with a 5% mixture of quercetin and fisetin (p < 0.05). In an in vivo pharmacokinetic study, the values of the area under the plasma concentration-time curve (AUC, ng h mL-1) were also higher in rats orally administered EGCG with 10% quercetin (365.5 ± 25.5) or 10% fisetin (825.3 ± 46.7) than in those administered EGCG only (111.3 ± 13.1). Methylated quercetin and methylated fisetin were determined to be m/z 317.24 and m/z 301.25 [M + H]+ with their own product ions, respectively. The results indicate that quercetin or fisetin is superior to ECs for methylation by COMT.
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Affiliation(s)
- Jin-Oh Chung
- Vital Beautie Research Institute, Amorepacific R&D Center, Yongin-si, Gyeonggi-do 17074, Republic of Korea
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Li F, Wang Y, Li D, Chen Y, Qiao X, Fardous R, Lewandowski A, Liu J, Chan TH, Dou QP. Perspectives on the recent developments with green tea polyphenols in drug discovery. Expert Opin Drug Discov 2018; 13:643-660. [PMID: 29688074 PMCID: PMC6287262 DOI: 10.1080/17460441.2018.1465923] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Increasing evidence has expanded the role of green tea from a traditional beverage to a source of pharmacologically active molecules with diverse health benefits. However, conclusive clinical results are needed to better elucidate the cancer-preventive and therapeutic effects of green tea polyphenols (GTPs). Areas covered: The authors describe GTPs' chemical compositions and metabolic biotransformations, and their recent developments in drug discovery, focusing on their cancer chemopreventive and therapeutic effects. They then review the recent development of GTP-loaded nanoparticles and GTP prodrugs. Expert opinion: GTPs possess potent anticarcinogenic activities through interfering with the initiation, development and progression phases of cancer. There are several challenges (e.g. poor bioavailability) in developing GTPs as therapeutic agents. Use of nanoparticle-based delivery systems has provided unique advantages over purified GTPs. However, there is still a need to determine the actual magnitude and pharmacological mechanisms of GTPs encapsulated in nanoparticles, in order to address newly emerging safety issues associated with the potential 'local overdose' effect. The use of Pro- epigallocatechin gallate (Pro-EGCG) as a prodrug appears to offer improved in vitro stability as well as better in vivo bioavailability and efficacies in a number of animal studies, suggesting its potential as a therapeutic agent for further study and development.
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Affiliation(s)
- Feng Li
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Yongli Wang
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Dapeng Li
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Yilun Chen
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Xuguang Qiao
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Rania Fardous
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Ashton Lewandowski
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Jinbao Liu
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
| | - Tak-Hang Chan
- Department of Chemistry, McGill University, Montreal, Quebec, Canada; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong
| | - Q. Ping Dou
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
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Wang SW, Xu Y, Weng YY, Fan XY, Bai YF, Zheng XY, Lou LJ, Zhang F. Astilbin ameliorates cisplatin-induced nephrotoxicity through reducing oxidative stress and inflammation. Food Chem Toxicol 2018; 114:227-236. [DOI: 10.1016/j.fct.2018.02.041] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 02/13/2018] [Accepted: 02/15/2018] [Indexed: 12/30/2022]
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Benefit of Oleuropein Aglycone for Alzheimer's Disease by Promoting Autophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5010741. [PMID: 29675133 PMCID: PMC5838478 DOI: 10.1155/2018/5010741] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 01/21/2018] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease is a proteinopathy characterized by accumulation of hyperphosphorylated Tau and β-amyloid. Autophagy is a physiological process by which aggregated proteins and damaged organelles are eliminated through lysosomal digestion. Autophagy deficiency has been demonstrated in Alzheimer's patients impairing effective elimination of aggregates and damaged mitochondria, leading to their accumulation, increasing their toxicity and oxidative stress. In the present study, we demonstrated by microarray analysis the downregulation of fundamental autophagy and mitophagy pathways in Alzheimer's patients. The benefits of the Mediterranean diet on Alzheimer's disease and cognitive impairment are well known, attributing this effect to several polyphenols, such as oleuropein aglycone (OLE), present in extra virgin olive oil. OLE is able to induce autophagy, achieving a decrease of aggregated proteins and a reduction of cognitive impairment in vivo. This effect is caused by the modulation of several pathways including the AMPK/mTOR axis and the activation of autophagy gene expression mediated by sirtuins and histone acetylation or EB transcription factor. We propose that supplementation of diet with extra virgin olive oil might have potential benefits for Alzheimer's patients by the induction of autophagy by OLE.
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Abstract
Tea polyphenols are secondary metabolites of tea plants and are well known for beneficial health effects. They can protect from a variety of illnesses including cancers. Tea polyphenols can prevent cancer by modulating epigenetic aberrations taking place in DNA methylation, histone modifications, and micro-RNAs. By altering these epimutations, they regulate chromatin dynamics and expression of genes those induce or suppress cancer formation. However, majority of the studies in existing literature are carried out for green tea polyphenols rather than black tea polyphenols despite the fact that black tea is the most commonly consumed form of tea (78%) followed by green tea (20%) and other forms of tea. Research findings indicate that tea polyphenols may be potential source from which drugs with less side effects and affordable price can be developed.
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Affiliation(s)
- Arundhati Bag
- Department of Medical Biotechnology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok, Sikkim, India
| | - Niladri Bag
- Department of Horticulture, Sikkim University, Gangtok, Sikkim, India
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The Role of Compounds Derived from Natural Supplement as Anticancer Agents in Renal Cell Carcinoma: A Review. Int J Mol Sci 2017; 19:ijms19010107. [PMID: 29301217 PMCID: PMC5796057 DOI: 10.3390/ijms19010107] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 12/24/2017] [Accepted: 12/28/2017] [Indexed: 12/24/2022] Open
Abstract
Renal Cell Carcinoma (RCC) is the most prominent kidney cancer derived from renal tubules and accounts for roughly 85% of all malignant kidney cancer. Every year, over 60,000 new cases are registered, and about 14,000 people die from RCC. The incidence of this has been increasing significantly in the U.S. and other countries. An increased understanding of molecular biology and the genomics of RCC has uncovered several signaling pathways involved in the progression of this cancer. Significant advances in the treatment of RCC have been reported from agents approved by the Food and Drug Administration (FDA) that target these pathways. These agents have become drugs of choice because they demonstrate clinical benefit and increased survival in patients with metastatic disease. However, the patients eventually relapse and develop resistance to these drugs. To improve outcomes and seek approaches for producing long-term durable remission, the search for more effective therapies and preventative strategies are warranted. Treatment of RCC using natural products is one of these strategies to reduce the incidence. However, recent studies have focused on these chemoprevention agents as anti-cancer therapies given they can inhibit tumor cell grow and lack the severe side effects common to synthetic compounds. This review elaborates on the current understanding of natural products and their mechanisms of action as anti-cancer agents. The present review will provide information for possible use of these products alone or in combination with chemotherapy for the prevention and treatment of RCC.
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Hong X, Kim ES, Guo H. Epigenetic regulation of hepatitis B virus covalently closed circular DNA: Implications for epigenetic therapy against chronic hepatitis B. Hepatology 2017; 66:2066-2077. [PMID: 28833361 PMCID: PMC5696023 DOI: 10.1002/hep.29479] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/24/2017] [Accepted: 08/15/2017] [Indexed: 12/12/2022]
Abstract
Hepatitis B virus (HBV) infection represents a significant public health burden worldwide. Although current therapeutics manage to control the disease progression, lifelong treatment and surveillance are required because drug resistance develops during treatment and reactivations frequently occur following medication cessation. Thus, the occurrence of hepatocellular carcinoma is decreased, but not eliminated. One major reason for failure of HBV treatment is the inability to eradicate or inactivate the viral covalently closed circular DNA (cccDNA), which is a stable episomal form of the viral genome decorated with host histones and nonhistone proteins. Accumulating evidence suggests that epigenetic modifications of cccDNA contribute to viral replication and the outcome of chronic HBV infection. Here, we summarize current progress on HBV epigenetics research and the therapeutic implications for chronic HBV infection by learning from the epigenetic therapies for cancer and other viral diseases, which may open a new venue to cure chronic hepatitis B. (Hepatology 2017;66:2066-2077).
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Affiliation(s)
- Xupeng Hong
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC 20057, USA,Corresponding author: Haitao Guo, ; Xupeng Hong,
| | - Elena S. Kim
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Haitao Guo
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA,Corresponding author: Haitao Guo, ; Xupeng Hong,
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Penta D, Somashekar BS, Meeran SM. Epigenetics of skin cancer: Interventions by selected bioactive phytochemicals. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2017; 34:42-49. [DOI: 10.1111/phpp.12353] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/26/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Dhanamjai Penta
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
| | - Bagganahalli S. Somashekar
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
| | - Syed Musthapa Meeran
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
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Saeed M, Naveed M, Arif M, Kakar MU, Manzoor R, Abd El-Hack ME, Alagawany M, Tiwari R, Khandia R, Munjal A, Karthik K, Dhama K, Iqbal HMN, Dadar M, Sun C. Green tea (Camellia sinensis) and l-theanine: Medicinal values and beneficial applications in humans-A comprehensive review. Biomed Pharmacother 2017; 95:1260-1275. [PMID: 28938517 DOI: 10.1016/j.biopha.2017.09.024] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/03/2017] [Accepted: 09/06/2017] [Indexed: 02/05/2023] Open
Abstract
Green tea (Camellia sinensis) is a famous herb, and its extract has been extensively used in traditional Chinese medicinal system. In this context, several studies have revealed its health benefits and medicinal potentialities for several ailments. With ever increasing scientific knowledge, search for safer, potential and novel type of health-related supplements quest, scientists are re-directing their research interests to explore natural resources i.e. medicinal herbs/plant derived compounds. Green tea consumption has gained a special attention and popularity in the modern era of changing lifestyle. The present review is aimed to extend the current knowledge by highlighting the importance and beneficial applications of green tea in humans for safeguarding various health issues. Herein, we have extensively reviewed, analyzed, and compiled salient information on green tea from the authentic published literature available in PubMed and other scientific databases. Scientific literature evidenced that owing to the bioactive constituents including caffeine, l-theanine, polyphenols/flavonoids and other potent molecules, green tea has many pharmacological and physiological functions. It possesses multi-beneficial applications in treating various disorders of humans. This review also provides in-depth insights on the medicinal values of green tea which will be useful for researchers, medical professionals, veterinarians, nutritionists, pharmacists and pharmaceutical industry. Future research emphasis and promotional avenues are needed to explore its potential therapeutic applications for designing appropriate pharmaceuticals, complementary medicines, and effective drugs as well as popularize and propagate its multidimensional health benefits.
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Affiliation(s)
- Muhammad Saeed
- College of Animal Science and Technology, NW A&F University, Yangling, Shaanxi, 712100, China; Institute of Animal Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Naveed
- Department of Clinical Pharmacy, School of Basic Medicine, and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, 211198, China; Department of Urology Surgery, Aviation General Hospital, Beijing, 100012, China
| | - Muhammad Arif
- Department of Animal Sciences, University College of Agriculture, University of Sargodha, 40100, Pakistan
| | - Mohib Ullah Kakar
- Faculty of Marine Sciences, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Balochistan, 3800, Pakistan
| | - Robina Manzoor
- Faculty of Marine Sciences, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Balochistan, 3800, Pakistan
| | | | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, UP Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, 281 001, India
| | - Rekha Khandia
- Department of Biochemistry and Genetics, Barkatullah University, Bhopal, 462 026 M.P., India
| | - Ashok Munjal
- Department of Biochemistry and Genetics, Barkatullah University, Bhopal, 462 026 M.P., India
| | - Kumaragurubaran Karthik
- Central University Laboratory, Tamil Nadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai, Tamil Nadu, 600051, India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, 243 122, Uttar Pradesh, India
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Chao Sun
- College of Animal Science and Technology, NW A&F University, Yangling, Shaanxi, 712100, China.
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Lai CY, Huang CC, Tsai CH, Wang JY, Kerr CL, Chen YY, Cai YW, Wong RH. The DNA Methyltransferase 3B -149 Genetic Polymorphism Modulates Lung Cancer Risk from Smoking. Asian Pac J Cancer Prev 2017; 18:2717-2723. [PMID: 29072397 PMCID: PMC5747395 DOI: 10.22034/apjcp.2017.18.10.2717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background: Smoking can cause increase of DNA methylation and hypermethylation of tumor suppressor genes, this possible contributing to subsequent lung cancer development. DNA methyltransferase 3B (DNMT3B) is crucial in regulation of DNA methylation and it has been proposed that green tea might lower cancer risk through inhibiting its activity. Here, we designed a case-control study to investigate whether the DNMT3B -149 genetic polymorphism could modulate lung cancer risk due to smoking. Possible interactions of smoking and green tea consumption with this DNMT3B genetic polymorphism were also assessed. Materials and Methods: A total of 190 lung cancer patients and 380 healthy controls were recruited. Questionnaires were administered to obtain data on sociodemographic and lifestyle variables, as well as family history of lung cancer. Genotypes for DNMT3B -149 were identified by polymerase chain reaction. Results: Smoking, green tea consumption, exposure to cooking fumes, family history of lung cancer, and the DNMT3B -149 genotype (odds ratio (OR)=2.65; 95% confidence interval (CI) 1.15-6.10) were all significantly associated with the development of lung cancer. Smokers carrying the DNMT3B -149 TT genotype were at elevated risk compared to non-smokers carrying DNMT3B -149 (OR=7.69; 95% CI 2.55-23.14). Interaction of smoking with DNMT3B -149 genotypes was significant regarding lung cancer risk. However, interaction between green tea drinking and DNMT3B -149 genotypes was not. Conclusions: The DNMT3B -149 TT genotype might increase the smoking-associated lung cancer risk.
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Affiliation(s)
- Chung Yu Lai
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- ,Department of Surgery, Cheng-Ching General Hospital, Taichung, Taiwan
- ,Center for General Education, Chung Shan Medical University,Taichung, Taiwan.
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Ren Y, Xiao L, Weng G, Shi B. Clinical significance of p16INK4A and p14ARF promoter methylation in renal cell carcinoma: a meta-analysis. Oncotarget 2017; 8:64385-64394. [PMID: 28969078 PMCID: PMC5610010 DOI: 10.18632/oncotarget.18826] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/02/2017] [Indexed: 11/25/2022] Open
Abstract
The inactivation of p16INK4A and p14ARF via promoter methylation has been investigated in various cancers. However, the clinical effects of p16INK4A and p14ARF promoter methylation on renal cell carcinoma (RCC) remain to be clarified. The pooled data were calculated and summarized. Finally, an investigation of 14 eligible studies with 1231 RCC patients and 689 control patients was performed. Methylated p16INK4A and p14ARF were observed to be significantly higher in RCC than in control subjects without malignancies (OR = 2.77, P = 0.005; OR = 11.73, P < 0.001, respectively). Methylated p16INK4A was significantly associated with the risk of RCC in the tissue subgroup, but not in the serum and urine subgroups. Methylated p16INK4A was significantly associated with tumor size. We did not find that p16INK4A promoter methylation was associated with sex, tumor grade, lymph node status, and tumor histology. Methylated p14ARF was significantly correlated with sex and tumor histology. Three studies reported that p16INK4A methylation was not significantly correlated with the prognosis of RCC. The results suggested that p16INK4A and p14ARF promoter methylation may be correlated with the carcinogenesis of RCC, and that methylated p14ARF , especially, can be a major susceptibility gene. We also found the different clinicopathological significance of 16INK4A and p14ARF in RCC. Additional studies with sufficient data are essential to further evaluate the clinical features and prognostic effect of p16INK4A and p14ARF promoter methylation in RCC.
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Affiliation(s)
- Yu Ren
- Department of Urologic Surgery, Ningbo Urology and Nephrology Hospital, Ningbo 315000, People's Republic of China
| | - Li Xiao
- Department of Urologic Surgery, Chinese PLA General Hospital, The 309th Hospital of China People's Liberation Army, Beijing 100094, People's Republic of China
| | - Guobin Weng
- Department of Urologic Surgery, Ningbo Urology and Nephrology Hospital, Ningbo 315000, People's Republic of China
| | - Bingyi Shi
- Department of Urologic Surgery, Chinese PLA General Hospital, The 309th Hospital of China People's Liberation Army, Beijing 100094, People's Republic of China
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3,6-Dihydroxyflavone regulates microRNA-34a through DNA methylation. BMC Cancer 2017; 17:619. [PMID: 28870206 PMCID: PMC5584326 DOI: 10.1186/s12885-017-3638-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 08/29/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Breast cancer is the common cancer in China. In previous study, we determined that 3,6-dihydroxyflavone (3,6-DHF) increases miR-34a significantly in breast carcinogenesis, but the mechanism remains unclear. METHODS We used qRT-PCR to analyze miR-34a and ten-eleven translocation (TET)1, TET2, TET3 levels in breast cancer cells. With a cellular breast carcinogenesis model and an experimental model of carcinogenesis in rats, TET1 levels were evaluated by western blot analysis and immunofluorescence. TET1 and 5hmC (5-hydroxymethylcytosine) levels were evaluated by immunofluorescence in nude mouse xenografts of MDA-MB-231 cells. Chromatin immunoprecipitation(ChIP) assayed for TET1 on the TET1 promoter, and dot blot analysis of DNA 5hmC was performed in MDA-MB-231 cells. We evaluated the mechanism of 3,6-DHF on the expression of tumor suppressor miR-34a by transfecting them with DNA methyltransferase (DNMT)1 plasmid and TET1 siRNA in breast cancer cells. Methylation-specific PCR detected methylation of the miR-34a promoter. RESULTS First, we found that 3,6-DHF promotes the expression of TET1 during carcinogen-induced breast carcinogenesis in MCF10A cells and in rats. 3,6-DHF also increased TET1 and 5hmC levels in MDA-MB-231 cells. Further study indicated that TET1 siRNA and pcDNA3/Myc-DNMT1 inhibited the 3,6-DHF reactivation effect on expression of miR-34a in breast cancer cells. Methylation-specific PCR assays indicated that TET1 siRNA and pcDNA3/Myc-DNMT1 inhibit the effect of 3,6-DHF on the demethylation of the miR-34a promoter. CONCLUSIONS Our study showed that 3,6-DHF effectively increases TET1 expression by inhibiting DNMT1 and DNA hypermethylation, and consequently up-regulates miR-34a in breast carcinogenesis.
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Wang J, Zhu C, Song D, Xia R, Yu W, Dang Y, Fei Y, Yu L, Wu J. Epigallocatechin-3-gallate enhances ER stress-induced cancer cell apoptosis by directly targeting PARP16 activity. Cell Death Discov 2017; 3:17034. [PMID: 28698806 PMCID: PMC5502302 DOI: 10.1038/cddiscovery.2017.34] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 04/12/2017] [Accepted: 05/07/2017] [Indexed: 12/12/2022] Open
Abstract
Poly(ADP-ribose) polymerases (PARPs) are ADP-ribosylating enzymes and play important roles in a variety of cellular processes. Most small-molecule PARP inhibitors developed to date have been against PARP1, a poly-ADP-ribose transferase, and suffer from poor selectivity. PARP16, a mono-ADP-ribose transferase, has recently emerged as a potential therapeutic target, but its inhibitor development has trailed behind. Here we newly characterized epigallocatechin-3-gallate (EGCG) as a potential inhibitor of PARP16. We found that EGCG was associated with PARP16 and dramatically inhibited its activity in vitro. Moreover, EGCG suppressed the ER stress-induced phosphorylation of PERK and the transcription of unfolded protein response-related genes, leading to dramatically increase of cancer cells apoptosis under ER stress conditions, which was dependent on PARP16. These findings newly characterized EGCG as a potential inhibitor of PARP16, which can enhance the ER stress-induced cancer cell apoptosis, suggesting that a combination of EGCG and ER stress-induced agents might represent a novel approach for cancer therapy or chemoprevention.
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Affiliation(s)
- Juanjuan Wang
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
| | - Chenggang Zhu
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai, PR China
| | - Dan Song
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
| | - Ruiqi Xia
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
| | - Wenbo Yu
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
| | - Yongjun Dang
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Yiyan Fei
- Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai, PR China
| | - Long Yu
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
| | - Jiaxue Wu
- The State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Science, Fudan University, Shanghai, PR China
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Naponelli V, Ramazzina I, Lenzi C, Bettuzzi S, Rizzi F. Green Tea Catechins for Prostate Cancer Prevention: Present Achievements and Future Challenges. Antioxidants (Basel) 2017; 6:antiox6020026. [PMID: 28379200 PMCID: PMC5488006 DOI: 10.3390/antiox6020026] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/01/2017] [Accepted: 04/03/2017] [Indexed: 12/13/2022] Open
Abstract
Green tea catechins (GTCs) are a family of chemically related compounds usually classified as antioxidant molecules. Epidemiological evidences, supported by interventional studies, highlighted a more than promising role for GTCs in human prostate cancer (PCa) chemoprevention. In the last decades, many efforts have been made to gain new insights into the mechanism of action of GTCs. Now it is clear that GTCs' anticancer action can no longer be simplistically limited to their direct antioxidant/pro-oxidant properties. Recent contributions to the advancement of knowledge in this field have shown that GTCs specifically interact with cellular targets, including cell surface receptors, lipid rafts, and endoplasmic reticulum, modulate gene expression through direct effect on transcription factors or indirect epigenetic mechanisms, and interfere with intracellular proteostasis at various levels. Many of the effects observed in vitro are dose and cell context dependent and take place at concentrations that cannot be achieved in vivo. Poor intestinal absorption together with an extensive systemic and enteric metabolism influence GTCs' bioavailability through still poorly understood mechanisms. Recent efforts to develop delivery systems that increase GTCs' overall bioavailability, by means of biopolymeric nanoparticles, represent the main way to translate preclinical results in a real clinical scenario for PCa chemoprevention.
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Affiliation(s)
- Valeria Naponelli
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43126, Italy.
- Centre for Molecular and Translational Oncology (COMT), University of Parma, Parco Area delle Scienze 11/a, Parma 43124, Italy.
- National Institute of Biostructure and Biosystems (INBB), Viale Medaglie d'Oro 305, Rome 00136, Italy.
- Fondazione Umberto Veronesi, Piazza Velasca 5, Milan 20122, Italy.
| | - Ileana Ramazzina
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43126, Italy.
- Centre for Molecular and Translational Oncology (COMT), University of Parma, Parco Area delle Scienze 11/a, Parma 43124, Italy.
- National Institute of Biostructure and Biosystems (INBB), Viale Medaglie d'Oro 305, Rome 00136, Italy.
| | - Chiara Lenzi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43126, Italy.
| | - Saverio Bettuzzi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43126, Italy.
- Centre for Molecular and Translational Oncology (COMT), University of Parma, Parco Area delle Scienze 11/a, Parma 43124, Italy.
- National Institute of Biostructure and Biosystems (INBB), Viale Medaglie d'Oro 305, Rome 00136, Italy.
| | - Federica Rizzi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, Parma 43126, Italy.
- Centre for Molecular and Translational Oncology (COMT), University of Parma, Parco Area delle Scienze 11/a, Parma 43124, Italy.
- National Institute of Biostructure and Biosystems (INBB), Viale Medaglie d'Oro 305, Rome 00136, Italy.
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Ratovitski EA. Anticancer Natural Compounds as Epigenetic Modulators of Gene Expression. Curr Genomics 2017; 18:175-205. [PMID: 28367075 PMCID: PMC5345332 DOI: 10.2174/1389202917666160803165229] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/24/2015] [Accepted: 11/29/2015] [Indexed: 11/30/2022] Open
Abstract
Accumulating evidence shows that hallmarks of cancer include: "genetic and epigenetic alterations leading to inactivation of cancer suppressors, overexpression of oncogenes, deregulation of intracellular signaling cascades, alterations of cancer cell metabolism, failure to undergo cancer cell death, induction of epithelial to mesenchymal transition, invasiveness, metastasis, deregulation of immune response and changes in cancer microenvironment, which underpin cancer development". Natural compounds as bioactive ingredients isolated from natural sources (plants, fungi, marine life forms) have revolutionized the field of anticancer therapeutics and rapid developments in preclinical studies are encouraging. Natural compounds could affect the epigenetic molecular mechanisms that modulate gene expression, as well as DNA damage and repair mechanisms. The current review will describe the latest achievements in using naturally produced compounds targeting epigenetic regulators and modulators of gene transcription in vitro and in vivo to generate novel anticancer therapeutics.
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Affiliation(s)
- Edward A. Ratovitski
- Head and Neck Cancer Research Division, Department of Otolaryngology/Head and Neck Surgery, The Johns Hopkins School of Medicine, Baltimore, MD 21231, USA
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Jacob SA, Khan TM, Lee LH. The Effect of Green Tea Consumption on Prostate Cancer Risk and Progression: A Systematic Review. Nutr Cancer 2017; 69:353-364. [DOI: 10.1080/01635581.2017.1285037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sabrina Anne Jacob
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Tahir Mehmood Khan
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Learn-Han Lee
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
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Rigacci S, Miceli C, Nediani C, Berti A, Cascella R, Pantano D, Nardiello P, Luccarini I, Casamenti F, Stefani M. Oleuropein aglycone induces autophagy via the AMPK/mTOR signalling pathway: a mechanistic insight. Oncotarget 2016; 6:35344-57. [PMID: 26474288 PMCID: PMC4742109 DOI: 10.18632/oncotarget.6119] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/12/2015] [Indexed: 01/21/2023] Open
Abstract
The healthy effects of plant polyphenols, some of which characterize the so-called Mediterranean diet, have been shown to arise from epigenetic and biological modifications resulting, among others, in autophagy stimulation. Our previous work highlighted the beneficial effects of oleuropein aglycone (OLE), the main polyphenol found in the extra virgin olive oil, against neurodegeneration both in cultured cells and in model organisms, focusing, in particular, autophagy activation. In this study we investigated more in depth the molecular and cellular mechanisms of autophagy induction by OLE using cultured neuroblastoma cells and an OLE-fed mouse model of amylod beta (Aβ) deposition. We found that OLE triggers autophagy in cultured cells through the Ca2+-CAMKKβ-AMPK axis. In particular, in these cells OLE induces a rapid release of Ca2+ from the SR stores which, in turn, activates CAMKKβ, with subsequent phosphorylation and activation of AMPK. The link between AMPK activation and mTOR inhibition was shown in the OLE-fed animal model in which we found that decreased phospho-mTOR immunoreactivity and phosphorylated mTOR substrate p70 S6K levels match enhanced phospho-AMPK levels, supporting the idea that autophagy activation by OLE proceeds through mTOR inhibition. Our results agree with those reported for other plant polyphenols, suggesting a shared molecular mechanism underlying the healthy effects of these substances against ageing, neurodegeneration, cancer, diabetes and other diseases implying autophagy dysfunction.
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Affiliation(s)
- Stefania Rigacci
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Caterina Miceli
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Chiara Nediani
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Andrea Berti
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Roberta Cascella
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Daniela Pantano
- Department of Neuroscience, Psychology, Drug Research and Child Health, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Pamela Nardiello
- Department of Neuroscience, Psychology, Drug Research and Child Health, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Ilaria Luccarini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Fiorella Casamenti
- Department of Neuroscience, Psychology, Drug Research and Child Health, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Massimo Stefani
- Department of Experimental and Clinical Biomedical Sciences, Division of Pharmacology and Toxicology, University of Florence, Florence, Italy
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