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Beetch M, Boycott C, Harandi-Zadeh S, Yang T, Martin BJE, Dixon-McDougall T, Ren K, Gacad A, Dupuis JH, Ullmer M, Lubecka K, Yada RY, Brown CJ, Howe LJ, Stefanska B. Pterostilbene leads to DNMT3B-mediated DNA methylation and silencing of OCT1-targeted oncogenes in breast cancer cells. J Nutr Biochem 2021; 98:108815. [PMID: 34242723 PMCID: PMC8819711 DOI: 10.1016/j.jnutbio.2021.108815] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 06/06/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022]
Abstract
Transcription factor (TF)-mediated regulation of genes is often disrupted during carcinogenesis. The DNA methylation state of TF-binding sites may dictate transcriptional activity of corresponding genes. Stilbenoid polyphenols, such as pterostilbene (PTS), have been shown to exert anticancer action by remodeling DNA methylation and gene expression. However, the mechanisms behind these effects still remain unclear. Here, the dynamics between oncogenic TF OCT1 binding and de novo DNA methyltransferase DNMT3B binding in PTS-treated MCF10CA1a invasive breast cancer cells has been explored. Using chromatin immunoprecipitation (ChIP) followed by next generation sequencing, we determined 47 gene regulatory regions with decreased OCT1 binding and enriched DNMT3B binding in response to PTS. Most of those genes were found to have oncogenic functions. We selected three candidates, PRKCA, TNNT2, and DANT2, for further mechanistic investigation taking into account PRKCA functional and regulatory connection with numerous cancer-driving processes and pathways, and some of the highest increase in DNMT3B occupancy within TNNT2 and DANT2 enhancers. PTS led to DNMT3B recruitment within PRKCA, TNNT2, and DANT2 at loci that also displayed reduced OCT1 binding. Substantial decrease in OCT1 with increased DNMT3B binding was accompanied by PRKCA promoter and TNNT2 and DANT2 enhancer hypermethylation, and gene silencing. Interestingly, DNA hypermethylation of the genes was not detected in response to PTS in DNMT3B-CRISPR knockout MCF10CA1a breast cancer cells. It indicates DNMT3B-dependent methylation of PRKCA, TNNT2, and DANT2 upon PTS. Our findings provide a better understanding of mechanistic players and their gene targets that possibly contribute to the anticancer action of stilbenoid polyphenols.
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Affiliation(s)
- Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cayla Boycott
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sadaf Harandi-Zadeh
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tony Yang
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Benjamin J E Martin
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas Dixon-McDougall
- Department of Medical Genetics, Molecular Epigenetics Group, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kevin Ren
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Allison Gacad
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - John H Dupuis
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Melissa Ullmer
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Katarzyna Lubecka
- Department of Biomedical Chemistry, Medical University of Lodz, Lodz, Poland
| | - Rickey Y Yada
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Carolyn J Brown
- Department of Medical Genetics, Molecular Epigenetics Group, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - LeAnn J Howe
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada.
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Beetch M, Harandi-Zadeh S, Yang T, Boycott C, Chen Y, Stefanska B, Mohammed SI. Author Correction: DNA methylation landscape of triple-negative ductal carcinoma in situ (DCIS) progressing to the invasive stage in canine breast cancer. Sci Rep 2020; 10:5370. [PMID: 32193463 PMCID: PMC7081194 DOI: 10.1038/s41598-020-62220-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Megan Beetch
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada
| | - Sadaf Harandi-Zadeh
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada
| | - Tony Yang
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada
| | - Cayla Boycott
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada
| | - Yihang Chen
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada
| | - Barbara Stefanska
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, University of British Columbia, Vancouver, Canada.
| | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA. .,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA.
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Beetch M, Harandi-Zadeh S, Shen K, Lubecka K, Kitts DD, O'Hagan HM, Stefanska B. Dietary antioxidants remodel DNA methylation patterns in chronic disease. Br J Pharmacol 2019; 177:1382-1408. [PMID: 31626338 DOI: 10.1111/bph.14888] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/19/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022] Open
Abstract
Chronic diseases account for over 60% of all deaths worldwide according to the World Health Organization reports. Majority of cases are triggered by environmental exposures that lead to aberrant changes in the epigenome, specifically, the DNA methylation patterns. These changes result in altered expression of gene networks and activity of signalling pathways. Dietary antioxidants, including catechins, flavonoids, anthocyanins, stilbenes and carotenoids, demonstrate benefits in the prevention and/or support of therapy in chronic diseases. This review provides a comprehensive discussion of potential epigenetic mechanisms of antioxidant compounds in reversing altered patterns of DNA methylation in chronic disease. Antioxidants remodel the DNA methylation patterns through multiple mechanisms, including regulation of epigenetic enzymes and chromatin remodelling complexes. These effects can further contribute to antioxidant properties of the compounds. On the other hand, decrease in oxidative stress itself can impact DNA methylation delivering additional link between antioxidant mechanisms and epigenetic effects of the compounds. LINKED ARTICLES: This article is part of a themed section on The Pharmacology of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.6/issuetoc.
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Affiliation(s)
- Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Sadaf Harandi-Zadeh
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Kate Shen
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Katarzyna Lubecka
- Department of Biomedical Chemistry, Medical University of Lodz, Lodz, Poland
| | - David D Kitts
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
| | - Heather M O'Hagan
- Cell, Molecular and Cancer Biology, Medical Sciences, Indiana University School of Medicine, Bloomington, Indiana, USA
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada
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