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Liu H, Deng Y, Luo G, Yang Y, Xie B, Diao H, Chen M, Chen L, Xie P, Kwan HY, Zhao X, Sun X. DNA methylation of miR-181a-5p mediated by DNMT3b drives renal interstitial fibrosis developed from acute kidney injury. Epigenomics 2024:1-16. [PMID: 39023272 DOI: 10.1080/17501911.2024.2370229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 06/14/2024] [Indexed: 07/20/2024] Open
Abstract
Aim: To explore the role of miR-181a-5p in the progression of acute kidney injury (AKI) to renal interstitial fibrosis (RIF) from the perspective of DNA methylation. Materials & methods: The role of miR-181a-5p was confirmed by collecting clinical samples, injecting miR-181a-5p agomir into tail vein, and transfecting miR-181a-5p mimic in vitro. The mechanism of miR-181a-5p's influence on AKI induced RIF was investigated by methylation-specific PCR, bioinformatic analysis, transcriptome sequencing and so on. Results: MiR-181a-5p plays an important role in AKI induced RIF. DNMT3b-mediated miR-181a-5p promoter hypermethylation is the main reason for the downregulation of miR-181a-5p. HDAC9 and SNAI2 are direct targets of miR-181a-5p. Conclusion: Hypermethylation of miR-181a-5p promoter mediated by DNMT3b promotes AKI induced RIF by targeting HDAC9 and SNAI2.
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Affiliation(s)
- Huaxi Liu
- Department of Nephrology, TCM-Integrated Hospital of Southern Medical University, Guangzhou, Guangdong, 510315, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
- Boai Hospital of Zhongshan, Zhongshan, Guangdong 528403, China
| | - Yijian Deng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Guanfeng Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Ying Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Bei Xie
- Department of Nephrology, TCM-Integrated Hospital of Southern Medical University, Guangzhou, Guangdong, 510315, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Huiling Diao
- Department of Nephrology, TCM-Integrated Hospital of Southern Medical University, Guangzhou, Guangdong, 510315, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Meilin Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Liqian Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Penghui Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Hiu Yee Kwan
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Xiaoshan Zhao
- Department of Nephrology, TCM-Integrated Hospital of Southern Medical University, Guangzhou, Guangdong, 510315, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiaomin Sun
- Department of Nephrology, TCM-Integrated Hospital of Southern Medical University, Guangzhou, Guangdong, 510315, China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
- Department of Traditional Chinese Medicine, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong 510280, China
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Ferrer-Diaz AI, Sinha G, Petryna A, Gonzalez-Bermejo R, Kenfack Y, Adetayo O, Patel SA, Hooda-Nehra A, Rameshwar P. Revealing role of epigenetic modifiers and DNA oxidation in cell-autonomous regulation of Cancer stem cells. Cell Commun Signal 2024; 22:119. [PMID: 38347590 PMCID: PMC10863086 DOI: 10.1186/s12964-024-01512-1] [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: 12/30/2023] [Accepted: 02/01/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Breast cancer cells (BCCs) can remain undetected for decades in dormancy. These quiescent cells are similar to cancer stem cells (CSCs); hence their ability to initiate tertiary metastasis. Dormancy can be regulated by components of the tissue microenvironment such as bone marrow mesenchymal stem cells (MSCs) that release exosomes to dedifferentiate BCCs into CSCs. The exosomes cargo includes histone 3, lysine 4 (H3K4) methyltransferases - KMT2B and KMT2D. A less studied mechanism of CSC maintenance is the process of cell-autonomous regulation, leading us to examine the roles for KMT2B and KMT2D in sustaining CSCs, and their potential as drug targets. METHODS Use of pharmacological inhibitor of H3K4 (WDR5-0103), knockdown (KD) of KMT2B or KMT2D in BCCs, real time PCR, western blot, response to chemotherapy, RNA-seq, and flow cytometry for circulating markers of CSCs and DNA hydroxylases in BC patients. In vivo studies using a dormancy model studied the effects of KMT2B/D to chemotherapy. RESULTS H3K4 methyltransferases sustain cell autonomous regulation of CSCs, impart chemoresistance, maintain cycling quiescence, and reduce migration and proliferation of BCCs. In vivo studies validated KMT2's role in dormancy and identified these genes as potential drug targets. DNA methylase (DNMT), predicted within a network with KMT2 to regulate CSCs, was determined to sustain circulating CSC-like in the blood of patients. CONCLUSION H3K4 methyltransferases and DNA methylation mediate cell autonomous regulation to sustain CSC. The findings provide crucial insights into epigenetic regulatory mechanisms underlying BC dormancy with KMT2B and KMT2D as potential therapeutic targets, along with standard care. Stem cell and epigenetic markers in circulating BCCs could monitor treatment response and this could be significant for long BC remission to partly address health disparity.
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Affiliation(s)
- Alejandra I Ferrer-Diaz
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA
| | - Garima Sinha
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA
| | - Andrew Petryna
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA
| | | | - Yannick Kenfack
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA
| | | | - Shyam A Patel
- Division of Hematology and Oncology, Department of Medicine, UMass Memorial Medical Center, UMass Chan Medical School, Worcester, MA, USA
| | - Anupama Hooda-Nehra
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA
- Rutgers Cancer Institute of New Jersey, Newark, NJ, USA
| | - Pranela Rameshwar
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ, 07103, USA.
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Banerjee A, Bardhan A, Sarkar P, Datta C, Pal DK, Saha A, Ghosh A. Dysregulation of DNA epigenetic modulators during prostate carcinogenesis in an eastern Indian patient population: Prognostic implications. Pathol Res Pract 2024; 253:154970. [PMID: 38056136 DOI: 10.1016/j.prp.2023.154970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/18/2023] [Accepted: 11/21/2023] [Indexed: 12/08/2023]
Abstract
The role of epigenetic alteration in prostate cancer pathogenesis was reported. We aimed to analyze dysregulation of DNA methylase (DNA methyl transferase/DNMT) and demethylase (ten eleven translocase/TET) and the associated interplay between them during prostate tumorigenesis. Promoter methylation and RNA/protein expression of selected DNMT and TETs were analysed in normal prostate, benign prostatic hyperplasia (BPH), and prostate cancer (PCa). Genomic 5-hydroxymethylcytosine (5hmC) level was detected and correlated with DNMT and TET proteins. Clinicopathological association of molecular data was done. Our data revealed a very low frequency of promoter methylation for DNMT1 (5-3% and high frequency for TET1 (22-38%), TET2 (68-90 %), and TET3 (43-32 %) in BPH and PCa. The promoter methylation of DNMT1 (p = 0.019) showed a significantly decreasing trend, while that of TET1 (p = 0.0005) and TET2 (p < 0.0001) showed an increasing trend from normal prostate to BPH to PCa, indicating their epigenetic dysregulation during prostate tumorigenesis. RNA/protein overexpression of DNMT1 and reduced expression of TET1 and TET2 in PCa compared to BPH were associated with the promoter methylation status of genes. The 5hmC level was significantly lower in PCa than in BPH and correlated negatively with DNMT1 but positively with TET1 and TET2 proteins, suggesting dysregulation of DNA methylase and de-methylase activities during prostate tumorigenesis. Lastly, tumors having methylated TET1 and TET2 promoters showed advanced clinicopathological features (a higher PSA level/Gleason score) and increased risk of bone metastasis. In conclusion, DNMT1 upregulation and epigenetic silencing of TET1 and TET2 was seen during PCa development. TET1 and TET2 promoter methylation has prognostic importance.
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Affiliation(s)
- Anwesha Banerjee
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India
| | - Abhishek Bardhan
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India
| | - Purandar Sarkar
- Institute of Health Sciences, Presidency University, New Town, Kolkata, West Bengal, India
| | - Chhanda Datta
- Department of Pathology, IPGME&R, Kolkata, West Bengal, India
| | | | - Abhik Saha
- Institute of Health Sciences, Presidency University, New Town, Kolkata, West Bengal, India
| | - Amlan Ghosh
- Department of Life Sciences, Presidency University, Kolkata, West Bengal, India.
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Giordano F, Paolì A, Forastiero M, Marsico S, De Amicis F, Marrelli M, Naimo GD, Mauro L, Panno ML. Valproic acid inhibits cell growth in both MCF-7 and MDA-MB231 cells by triggering different responses in a cell type-specific manner. J Transl Med 2023; 21:165. [PMID: 36864445 PMCID: PMC9983172 DOI: 10.1186/s12967-023-04015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/20/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Breast cancer is the second leading cause of death among women after lung cancer. Despite the improvement in prevention and in therapy, breast cancer still remains a threat, both for pre- and postmenopausal women, due to the development of drug resistance. To counteract that, novel agents regulating gene expression have been studied in both hematologic and solid tumors. The Histone Deacetylase (HDAC) inhibitor Valproic Acid (VA), used for epilepsy and other neuropsychiatric diseases, has been demonstrated a strong antitumoral and cytostatic activity. In this study, we tested the effects of Valproic Acid on the signaling pathways involved in breast cancer cells viability, apoptosis and in Reactive Oxygen Species (ROS) production using ER-α positive MCF-7 and triple negative MDA-MB-231 cells. METHODS Cell proliferation assay was performed by MTT Cell cycle, ROS levels and apoptosis were analyzed by flow cytometry, protein levels were detected by Western Blotting. RESULTS Cell treatment with Valproic Acid reduced cell proliferation and induced G0/G1 cell cycle arrest in MCF-7 and G2/M block in MDA-MB-231 cells. In addition, in both cells the drug enhanced the generation of ROS by the mitochondria. In MCF-7 treated cells, it has been observed a reduction in mitochondrial membrane potential, a down regulation of the anti-apoptotic marker Bcl-2 and an increase of Bax and Bad, leading to release of cytochrome C and PARP cleavage. Less consistent effects are recorded in MDA-MB-231 cells, in which the greater production of ROS, compared to MCF-7cells, involves an inflammatory response (activation of p-STAT3, increased levels of COX2). CONCLUSIONS Our results have demonstrated that in MCF-7 cells the Valproic Acid is a suitable drug to arrest cell growth, to address apoptosis and mitochondrial perturbations, all factors that are important in determining cell fate and health. In a triple negative MDA-MB 231 cells, valproate directs the cells towards the inflammatory response with a sustained expression of antioxidant enzymes. Overall, the not always unequivocal data between the two cellular phenotypes indicate that further studies are needed to better define the use of the drug, also in combination with other chemotherapy, in the treatment of breast tumors.
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Affiliation(s)
- Francesca Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.
| | - Alessandro Paolì
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Martina Forastiero
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Stefania Marsico
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Mariangela Marrelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Giuseppina Daniela Naimo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Loredana Mauro
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.
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5
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Li S, Yan B, Li TKT, Lu J, Gu Y, Tan Y, Gong F, Lam TW, Xie P, Wang Y, Lin G, Luo R. Ultra-low-coverage genome-wide association study-insights into gestational age using 17,844 embryo samples with preimplantation genetic testing. Genome Med 2023; 15:10. [PMID: 36788602 PMCID: PMC9926832 DOI: 10.1186/s13073-023-01158-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 01/26/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Very low-coverage (0.1 to 1×) whole genome sequencing (WGS) has become a promising and affordable approach to discover genomic variants of human populations for genome-wide association study (GWAS). To support genetic screening using preimplantation genetic testing (PGT) in a large population, the sequencing coverage goes below 0.1× to an ultra-low level. However, the feasibility and effectiveness of ultra-low-coverage WGS (ulcWGS) for GWAS remains undetermined. METHODS We built a pipeline to carry out analysis of ulcWGS data for GWAS. To examine its effectiveness, we benchmarked the accuracy of genotype imputation at the combination of different coverages below 0.1× and sample sizes from 2000 to 16,000, using 17,844 embryo PGT samples with approximately 0.04× average coverage and the standard Chinese sample HG005 with known genotypes. We then applied the imputed genotypes of 1744 transferred embryos who have gestational ages and complete follow-up records to GWAS. RESULTS The accuracy of genotype imputation under ultra-low coverage can be improved by increasing the sample size and applying a set of filters. From 1744 born embryos, we identified 11 genomic risk loci associated with gestational ages and 166 genes mapped to these loci according to positional, expression quantitative trait locus, and chromatin interaction strategies. Among these mapped genes, CRHBP, ICAM1, and OXTR were more frequently reported as preterm birth related. By joint analysis of gene expression data from previous studies, we constructed interrelationships of mainly CRHBP, ICAM1, PLAGL1, DNMT1, CNTLN, DKK1, and EGR2 with preterm birth, infant disease, and breast cancer. CONCLUSIONS This study not only demonstrates that ulcWGS could achieve relatively high accuracy of adequate genotype imputation and is capable of GWAS, but also provides insights into the associations between gestational age and genetic variations of the fetal embryos from Chinese population.
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Affiliation(s)
- Shumin Li
- grid.194645.b0000000121742757Department of Computer Science, The University of Hong Kong, Hong Kong, China
| | - Bin Yan
- grid.194645.b0000000121742757Department of Computer Science, The University of Hong Kong, Hong Kong, China
| | - Thomas K. T. Li
- grid.415550.00000 0004 1764 4144Department of Obstetrics & Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Jianliang Lu
- grid.194645.b0000000121742757Department of Computer Science, The University of Hong Kong, Hong Kong, China
| | - Yifan Gu
- grid.216417.70000 0001 0379 7164NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410008 Hunan China ,grid.477823.d0000 0004 1756 593XClinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410013 Hunan China
| | - Yueqiu Tan
- grid.216417.70000 0001 0379 7164NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410008 Hunan China ,grid.477823.d0000 0004 1756 593XClinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410013 Hunan China
| | - Fei Gong
- grid.216417.70000 0001 0379 7164NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410008 Hunan China ,grid.477823.d0000 0004 1756 593XClinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410013 Hunan China
| | - Tak-Wah Lam
- grid.194645.b0000000121742757Department of Computer Science, The University of Hong Kong, Hong Kong, China
| | - Pingyuan Xie
- Hunan Normal University School of Medicine, Changsha, 410013, Hunan, China. .,National Engineering and Research Center of Human Stem Cell, Changsha, Hunan, China.
| | - Yuexuan Wang
- Department of Computer Science, The University of Hong Kong, Hong Kong, China. .,College of Computer Science and Technology, Zhejiang University, Hangzhou, China.
| | - Ge Lin
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410008, Hunan, China. .,Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410013, Hunan, China. .,National Engineering and Research Center of Human Stem Cell, Changsha, Hunan, China.
| | - Ruibang Luo
- Department of Computer Science, The University of Hong Kong, Hong Kong, China.
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Chromatin modifiers – Coordinators of estrogen action. Biomed Pharmacother 2022; 153:113548. [DOI: 10.1016/j.biopha.2022.113548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/03/2022] [Accepted: 08/11/2022] [Indexed: 11/20/2022] Open
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Motawi TK, El-Maraghy SA, Sabry D, Nady OM, Senousy MA. Cromolyn chitosan nanoparticles reverse the DNA methylation of RASSF1A and p16 genes and mitigate DNMT1 and METTL3 expression in breast cancer cell line and tumor xenograft model in mice. Chem Biol Interact 2022; 365:110094. [PMID: 35961540 DOI: 10.1016/j.cbi.2022.110094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Developing epigenetic drugs for breast cancer (BC) remains a novel therapeutic approach. Cromolyn is a mast cell stabilizer emerging as an anticancer drug; its encapsulation in chitosan nanoparticles (CSNPs) improves its effect and bioavailability. However, its effect on DNA and RNA methylation machineries has not been previously tackled. METHODS The possible anticancer effect of cromolyn CSNPs and its potential as an epigenetic drug was investigated in vitro using MCF-7 human BC cell line and in vivo using Ehrlich ascites carcinoma-xenograft model in mice symbolizing murine mammary adenocarcinoma. Mice were injected with a single dose of Ehrlich ascites carcinoma cells subcutaneously for the induction of tumor mass, and then randomized into three groups: control, cromolyn CSNPs (equivalent to 5 mg cromolyn/kg, i.p.) and plain CSNPs twice/week for 2 weeks. RESULTS Cromolyn CSNPs showed prominent anticancer effect in MCF-7 cells by reducing the cell viability percent and enhancing DNA damage in the comet assay demonstrating its apoptotic actions. Mechanistically, cromolyn CSNPs influenced potential epigenetic processes through mitigating DNA methyltransferase 1 (DNMT1) expression, reversing the hypermethylation pattern of the tumor suppressor RASSF1A and p16 genes and attenuating the expression of the RNA N6-methyladenosine writer, methyltransferase-like 3 (METTL3). Cromolyn CSNPs diminished ERK1/2 phosphorylation, a possible arm influencing DNMT1 expression. In vivo, cromolyn CSNPs lessened the tumor volume and halted DNMT1 and METTL3 expression in Ehrlich carcinoma mice. CONCLUSIONS Cromolyn CSNPs have the premise as an epigenetic drug through inhibiting ERK1/2 phosphorylation/DNMT1/DNA methylation and possibly impacting the RNA methylation machinery via mitigating METTL3 expression.
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Affiliation(s)
- Tarek K Motawi
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Shohda A El-Maraghy
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Omina M Nady
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Mahmoud A Senousy
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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Salahuddin A, Ghanem H, Omran GA, Helmy MW. Epigenetic restoration and activation of ERβ: an inspiring approach for treatment of triple-negative breast cancer. Med Oncol 2022; 39:150. [PMID: 35843988 PMCID: PMC9288957 DOI: 10.1007/s12032-022-01765-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/09/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is one of the most aggressive subtypes of breast cancer. TNBC lacks targeted therapy receptors, rendering endocrine and HER2-targeted therapies ineffective. TNBC is typically treated with cytotoxic chemotherapy followed by surgery. Targeting epigenetic modifications could potentially be a new effective TNBC target therapy. The aim of this study is to examine the effects of epigenetic drugs, decitabine as DNA methyltransferase inhibitor (DNMTI) and vorinostat as histone deacetylase inhibitor (HDACI), and the ERβ agonist DPN on ERα and ERβ re-expressions in the MDA-MB-231 cells as a model of TNBC. METHODS Using MTT assay, the IC50 of decitabine, vorinostat, and DPN on MDA-MB-231 cells were determined. The effects of all drugs alone or in combinations on MDA-MB-231 cells were evaluated. qRT-PCR was used to determine ERα & ERβ gene expression. Caspase-3 activity and the protein expression levels of VEGF, Cyclin D1, and IGF-1 were assessed. RESULTS Both ERα and ERβ mRNA were re-expressed in different high levels in all treated groups, especially in the triple therapy group compared with control. Significantly, the triple drugs therapy showed the lowest levels of VEGF, Cyclin D1, and IGF-1 and the highest level of Caspase-3 activity, indicating a possible antitumor effect of ERβ activation through decreasing proliferation and angiogenesis and increasing apoptosis in MDA-MB-231 cells. CONCLUSIONS The antiproliferative effect of ERβ could be retained when co-expressed with Erα using a powerful epigenetic combination of Decitabine and vorinostat with DPN.
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Affiliation(s)
- Ahmad Salahuddin
- Department of Biochemistry, Faculty of Pharmacy, Damanhour University, Damanhour, 22511, Egypt.
| | - Heba Ghanem
- Department of Biochemistry, Faculty of Pharmacy, Damanhour University, Damanhour, 22511, Egypt
| | - Gamal A Omran
- Department of Biochemistry, Faculty of Pharmacy, Damanhour University, Damanhour, 22511, Egypt
| | - Maged Wasfy Helmy
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, 22511, Egypt
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9
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Asim A, Kiani YS, Saeed MT, Jabeen I. Decoding the Role of Epigenetics in Breast Cancer Using Formal Modeling and Machine-Learning Methods. Front Mol Biosci 2022; 9:882738. [PMID: 35898303 PMCID: PMC9309526 DOI: 10.3389/fmolb.2022.882738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/25/2022] [Indexed: 11/17/2022] Open
Abstract
Breast carcinogenesis is known to be instigated by genetic and epigenetic modifications impacting multiple cellular signaling cascades, thus making its prevention and treatments a challenging endeavor. However, epigenetic modification, particularly DNA methylation-mediated silencing of key TSGs, is a hallmark of cancer progression. One such tumor suppressor gene (TSG) RUNX3 (Runt-related transcription factor 3) has been a new insight in breast cancer known to be suppressed due to local promoter hypermethylation mediated by DNA methyltransferase 1 (DNMT1). However, the precise mechanism of epigenetic-influenced silencing of the RUNX3 signaling resulting in cancer invasion and metastasis remains inadequately characterized. In this study, a biological regulatory network (BRN) has been designed to model the dynamics of the DNMT1–RUNX3 network augmented by other regulators such as p21, c-myc, and p53. For this purpose, the René Thomas qualitative modeling was applied to compute the unknown parameters and the subsequent trajectories signified important behaviors of the DNMT1–RUNX3 network (i.e., recovery cycle, homeostasis, and bifurcation state). As a result, the biological system was observed to invade cancer metastasis due to persistent activation of oncogene c-myc accompanied by consistent downregulation of TSG RUNX3. Conversely, homeostasis was achieved in the absence of c-myc and activated TSG RUNX3. Furthermore, DNMT1 was endorsed as a potential epigenetic drug target to be subjected to the implementation of machine-learning techniques for the classification of the active and inactive DNMT1 modulators. The best-performing ML model successfully classified the active and least-active DNMT1 inhibitors exhibiting 97% classification accuracy. Collectively, this study reveals the underlined epigenetic events responsible for RUNX3-implicated breast cancer metastasis along with the classification of DNMT1 modulators that can potentially drive the perception of epigenetic-based tumor therapy.
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Al-Kharashi LA, Tulbah A, Arafah M, Eldali AM, Al-Tweigeri T, Aboussekhra A. High DNMT1 Expression in Stromal Fibroblasts Promotes Angiogenesis and Unfavorable Outcome in Locally Advanced Breast Cancer Patients. Front Oncol 2022; 12:877219. [PMID: 35719957 PMCID: PMC9202650 DOI: 10.3389/fonc.2022.877219] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background Active breast cancer-associated fibroblasts (CAFs) play a leading role in breast carcinogenesis through promoting angiogenesis and resistance to therapy. Consequently, these active stromal cells have significant influence on patient outcome. Therefore, we explored here the role of the DNA methyltransferase 1 (DNMT1) protein in CAF-dependent promotion of angiogenesis as well as the prognostic power of DNMT1 level in both cancer cells and their adjacent CAFs in locally advanced breast cancer patients. Methods We applied immunohistochemistry to evaluate the level of DNMT1 in breast cancer tissues and their adjacent normal counterparts. Quantitative RT-PCR and immunoblotting were performed to investigate the role of DNMT1 in regulating the expression of pro-angiogenic genes in active CAFs and also their response to the DNMT1 inhibitors decitabine (DAC) as well as eugenol. Results We have shown that DNMT1 controls the pro-angiogenic potential of CAFs both in vitro and in vivo through positive regulation of the expression/secretion of 2 important pro-angiogenic factors VEGF-A and IL-8 as well as their upstream effectors mTOR and HIF-1α. To confirm this, we have shown that these DNMT1-related pro-angiogenic effects were suppressed by 2 DNMT1 inhibitors decitabine and eugenol. Interestingly, in a cohort of 100 tumors from locally advanced breast cancer patients (LABC), we have shown that high expression of DNMT1 in tumor cells and their adjacent stromal fibroblasts is correlated with poor survival of these patients. Conclusion DNMT1 upregulation in breast stromal fibroblasts promotes angiogenesis via IL-8/VEGF-A upregulation, and correlates well with poor survival of LABC patients.
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Affiliation(s)
- Layla A Al-Kharashi
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Asma Tulbah
- Department of Pathology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Maria Arafah
- Department of Pathology, King Saud University, Riyadh, Saudi Arabia
| | - Abdelmonneim M Eldali
- Department of Biostatistics, Epidemiology and Scientific Computing, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Taher Al-Tweigeri
- Department of Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Abdelilah Aboussekhra
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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11
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Zambelli A, Sgarra R, De Sanctis R, Agostinetto E, Santoro A, Manfioletti G. Heterogeneity of triple-negative breast cancer: understanding the Daedalian labyrinth and how it could reveal new drug targets. Expert Opin Ther Targets 2022; 26:557-573. [PMID: 35638300 DOI: 10.1080/14728222.2022.2084380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Triple-negative breast cancer (TNBC) is considered the most aggressive breast cancer subtype with the least favorable outcomes. However, recent research efforts have generated an enhanced knowledge of the biology of the disease and have provided a new, more comprehensive understanding of the multifaceted ecosystem that underpins TNBC. AREAS COVERED In this review, the authors illustrate the principal biological characteristics of TNBC, the molecular driver alterations, targetable genes, and the biomarkers of immune engagement that have been identified across the subgroups of TNBC. Accordingly, the authors summarize the landscape of the innovative and investigative biomarker-driven therapeutic options in TNBC that emerge from the unique biological basis of the disease. EXPERT OPINION The therapeutic setting of TNBC is rapidly evolving. An enriched understanding of the tumor spatial and temporal heterogeneity and the surrounding microenvironment of this complex disease can effectively support the development of novel and tailored opportunities of treatment.
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Affiliation(s)
- Alberto Zambelli
- Medical Oncology and Hematology Unit, IRCCS - Humanitas Clinical and Research Center, Humanitas Cancer Center, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Riccardo Sgarra
- Department of Life sciences, University of Trieste, Trieste, Italy
| | - Rita De Sanctis
- Medical Oncology and Hematology Unit, IRCCS - Humanitas Clinical and Research Center, Humanitas Cancer Center, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Elisa Agostinetto
- Department of Biomedical Sciences, Institut Jules Bordet and l'Université Libre de Bruxelles (U.L.B), Brussels, Belgium and Humanitas University, Milan, Italy
| | - Armando Santoro
- Medical Oncology and Hematology Unit, IRCCS - Humanitas Clinical and Research Center, Humanitas Cancer Center, Milan, Italy
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12
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DNA methyltransferase 1 inhibits microRNA-497 and elevates GPRC5A expression to promote chemotherapy resistance and metastasis in breast cancer. Cancer Cell Int 2022; 22:112. [PMID: 35255904 PMCID: PMC8903738 DOI: 10.1186/s12935-022-02466-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 01/13/2022] [Indexed: 12/14/2022] Open
Abstract
Background Abnormal DNA methylation of tumor suppressor gene promoter has been found in breast cancer. Therefore, the current study set out to explore how DNA methyltransferase 1 (DNMT1) affects breast cancer through mediating miR-497/GPRC5A axis. Methods After loss and gain-of-function approaches were conducted in MCF-7/ADR and MCF-7 cells, cell viability, IC50 value, invasion, migration and apoptosis were measured, respectively. In addition, drug resistance, metastasis and apoptosis-related protein expression were examined using immunoblotting. ChIP and dual-luciferase reporter gene assays were carried out to validate relationship among DNMT1, miR-497, and GPRC5RA. Subcutaneous xenograft tumor model in nude mice was established to detect effects of DNMT1 on growth and metastasis of breast cancer in vivo. Results It was found that DNMT1 was notably increased, while miR-497 was poorly-expressed in breast cancer. Highly-expressed DNMT1 could promote chemotherapy resistance and metastasis of breast cancer. Meanwhile, DNMT1 modified methylation of CpG island in miR-497 promoter region, thereby repressing miR-497 level. In addition, miR-497 targeted GPRC5A expression to curb chemotherapy resistance and metastasis of breast cancer cells. Lastly, in vivo experiments showed that knockdown of DNMT1 could suppress breast cancer growth and metastasis. Conclusions Collectively, our findings indicated that DNMT1 may inhibit miR-497 and boost the expression of GPRC5A through methylation, thus augmenting breast cancer chemotherapy resistance and metastasis, which provides novel mechanistic insight into the unrecognized roles of DNMT1 in breast cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-022-02466-5.
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13
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Yari H, Shabani S, Nafissi N, Majidzadeh T, Mahjoubi F. Investigation of promoter methylation patterns association with genes expression profile of ISL1, MGMT and DMNT3b in tissue of breast cancer patients. Mol Biol Rep 2022; 49:847-857. [PMID: 34997427 DOI: 10.1007/s11033-021-06546-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 07/02/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND OBJECTIVES Cancer initiation and progression could influenced by both genetic and epigenetic events revealing of the overlap between epigenetic and genetic alteration can give important insights into cancer biology. METHODS AND RESULTS In this experiment ISL1, MGMT, DMNT3b genes were candidate to investigate both methylation status and expression profile by using methylation-specific PCR and real time PCR in 40 breast cancer patients, respectively, also we have assessed relation of the promoter methylation status and expression variation of the target genes. The mean level of methylation of ISL1 and MGMT in tumor tissues were significantly greater than normal tissues. In Contrast, DMNT3b gene was showed lower mean level of methylation in tumor tissue compared to normal tissues, however, this was not statistically significant. Relative expression analysis was displayed a significant reduction in expression level of ISL1 and MGMT in tumor tissues. Furthermore, there was a meaningful association between down expression of ISL1 with histological grade, Her2 and ER status. Moreover, MGMT down expression was significantly associated with tumor sizes. Any remarkable relation was not observed between DMNT3b expression level and clinic pathological features. At the end, significant relation between methylation status and expression level has been revealed. CONCLUSIONS In this study all observed results were exactly in line with the results were obtained from articles which were based on the methylation research and illustrate that the real-time PCR and methylation methods are in correlated with each other, furthermore, selected genes are capable to use as a potential biomarkers, however, more research on extended cases are needed.
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Affiliation(s)
- Hadi Yari
- Human Genetics Dept., Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Pajouhesh Blv, Tehran Karaj High Way, Tehran, Iran
| | - Samira Shabani
- Human Genetics Dept., Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Pajouhesh Blv, Tehran Karaj High Way, Tehran, Iran
| | - Nahid Nafissi
- Surgery Department of General Surgery, Iran University of Medical Science, Tehran, Iran
| | - Tayebeh Majidzadeh
- Human Genetics Dept., Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Pajouhesh Blv, Tehran Karaj High Way, Tehran, Iran
| | - Frouzandeh Mahjoubi
- Human Genetics Dept., Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Pajouhesh Blv, Tehran Karaj High Way, Tehran, Iran.
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14
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Li Y, Zhan Z, Yin X, Fu S, Deng X. Targeted Therapeutic Strategies for Triple-Negative Breast Cancer. Front Oncol 2021; 11:731535. [PMID: 34778045 PMCID: PMC8581040 DOI: 10.3389/fonc.2021.731535] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/12/2021] [Indexed: 12/13/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, which is characterized by the absence of estrogen receptor (ER) and progesterone receptor (PR) expression and the absence of human epidermal growth factor receptor 2 (HER2) expression/amplification. Conventional chemotherapy is the mainstay of systemic treatment for TNBC. However, lack of molecular targeted therapies and poor prognosis of TNBC patients have prompted a great effort to discover effective targets for improving the clinical outcomes. For now, poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi's) and immune checkpoint inhibitors have been approved for the treatment of TNBC. Moreover, agents that target signal transduction, angiogenesis, epigenetic modifications, and cell cycle are under active preclinical or clinical investigations. In this review, we highlight the current major developments in targeted therapies of TNBC, with some descriptions about their (dis)advantages and future perspectives.
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Affiliation(s)
- Ying Li
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Translational Cancer Stem Cell Research, Hunan Normal University, Changsha, China
| | - Zhijun Zhan
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Translational Cancer Stem Cell Research, Hunan Normal University, Changsha, China
| | - Xuemin Yin
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Translational Cancer Stem Cell Research, Hunan Normal University, Changsha, China
| | - Shujun Fu
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Translational Cancer Stem Cell Research, Hunan Normal University, Changsha, China
| | - Xiyun Deng
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, China.,Key Laboratory of Translational Cancer Stem Cell Research, Hunan Normal University, Changsha, China
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15
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Al-Kharashi LA, Bakheet T, AlHarbi WA, Al-Moghrabi N, Aboussekhra A. Eugenol modulates genomic methylation and inactivates breast cancer-associated fibroblasts through E2F1-dependent downregulation of DNMT1/DNMT3A. Mol Carcinog 2021; 60:784-795. [PMID: 34473867 DOI: 10.1002/mc.23344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 11/09/2022]
Abstract
Active cancer-associated fibroblasts (CAFs) are major components of the tumor microenvironment, which promote carcinogenesis and modulate response to therapy. Therefore, targeting these cells or reducing their paracrine pro-carcinogenic effects could be of great therapeutic value. To this end, we sought to investigate the effect of eugenol, a natural phenolic molecule, on active breast CAFs. We have shown that decitabine (5-Aza-2'-deoxycytidine, DAC) and eugenol inhibit the expression of the DNA methyltransferase genes DNMT1 and DNMT3A at both the protein and mRNA levels in breast CAF cells. While the effect of eugenol was persistent, DAC had only a transient inhibitory effect on the mRNA level of both DNMT genes. Furthermore, eugenol and DAC suppressed the invasive/migratory and proliferative potential of CAF cells as well as their paracrine pro-carcinogenic effects both in vitro and in humanized orthotopic tumor xenografts. Interestingly, these inhibitory effects of decitabine and eugenol were mediated through E2F1 downregulation. Indeed, ectopic expression of E2F1 upregulated both genes and attenuated the effects of eugenol. Additionally, we provide clear evidence that eugenol, like DAC, strongly modulates the methylation pattern in active CAF cells, through methylating several oncogenes and demethylating various important tumor suppressor genes, which affected their mRNA expression levels. Importantly, the E2F1 promoter was also hypermethylated and the gene downregulated in response to eugenol. Together, these findings show that the active features of breast CAF cells can be normalized through eugenol-dependent targeting of DNMT1/DNMT3A and the consequent modulation in gene methylation.
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Affiliation(s)
- Layla A Al-Kharashi
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Tala Bakheet
- Department of Molecular BioMedicine, Research Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Wejdan A AlHarbi
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Nisreen Al-Moghrabi
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Abdelilah Aboussekhra
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
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16
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Kaleem M, Perwaiz M, Nur SM, Abdulrahman AO, Ahmad W, Al-Abbasi FA, Kumar V, Kamal MA, Anwar F. Epigenetics of Triple-negative breast cancer via natural compounds. Curr Med Chem 2021; 29:1436-1458. [PMID: 34238140 DOI: 10.2174/0929867328666210707165530] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 02/08/2023]
Abstract
Triple-negative breast cancer (TNBC) is a highly resistant, lethal, and metastatic sub-division of breast carcinoma, characterized by the deficiency of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2). In women, TNBC shows a higher aggressive behavior with poor patient prognosis and a higher recurrence rate during reproductive age. TNBC is defined by the presence of epithelial-to-mesenchymal-transition (EMT), which shows a significant role in cancer progression. At the epigenetic level, TNBC is characterized by epigenetic signatures, such as DNA methylation, histone remodeling, and a host of miRNA, MiR-193, LncRNA, HIF-2α, eEF2K, LIN9/NEK2, IMP3, LISCH7/TGF-β1, GD3s and KLK12 mediated regulation. These modifications either are silenced or activate the necessary genes that are prevalent in TNBC. The review is based on epigenetic mediated mechanistic changes in TNBC. Furthermore, Thymoquinone (TQ), Regorafenib, Fangjihuangqi decoction, Saikosaponin A, and Huaier, etc., are potent antitumor natural compounds extensively reported in the literature. Further, the review emphasizes the role of these natural compounds in TNBC and their possible epigenetic targets, which can be utilized as a potential therapeutic strategy in treatment of TNBC.
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Affiliation(s)
- Mohammed Kaleem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Maryam Perwaiz
- Department of Sciences, University of Toronto. Mississauga. Canada
| | - Suza Mohammad Nur
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | | | - Wasim Ahmad
- Department of Kuliyate Tib, National Institute of Unani Medicine, Kottigepalya, Bengaluru, India
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Vikas Kumar
- Natural Product Discovery Laboratory, Department of Pharmaceutical Sciences, Shalom Institute of Health and Allied Sciences. SHUATS, Naini, Prayagraj, India
| | - Mohammad Amjad Kamal
- West China School of Nursing / Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Firoz Anwar
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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17
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Tian R, Lv Y, Yang X, Cui L, Wu X, Liu C, Li J, Yao Y, Yang Y, Mou Y, Song X. DNA methyltransferase 1 inhibits O 6-methylguanine-DNAmethyl-transferase-mediated cell growth and metastasis of hypopharyngeal squamous carcinoma. Arch Oral Biol 2021; 128:105160. [PMID: 34044343 DOI: 10.1016/j.archoralbio.2021.105160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/16/2021] [Accepted: 05/17/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To explore the role of DNA methyltransferase 1 (DNMT1) in development and progression of hypopharyngeal squamous carcinoma. DESIGN A total of 32 hypopharyngeal squamous carcinoma biopsy samples and 20 normal tissue specimens were collected. Immunohistochemical staining, quantitative real-time polymerase chain reaction, and Western blot were performed for expression analysis. The mRNA and protein expression in the specimens and subcellular localization were analyzed. hypopharyngeal squamous carcinoma cells (FaDu) were used for small interfering RNA of DNMT1, and proliferation, cell cycle, and apoptosis were determined in the transfected cells. Furthermore, metastatic ability and methylation status of O6-methylguanine-DNAmethyl-transferase (MGMT) promoter was assessed. RESULTS Our results showed that DNMT1 was overexpressed, while MGMT was down expressed in hypopharyngeal squamous carcinoma. DNMT1 overexpression and MGMT down expression were significantly associated with poorly differentiated tumors, lymph node metastasis, and clinical stage. DNMT1 and MGMT were majorly distributed in the nucleus. Furthermore, knockdown of DNMT1 inhibited proliferation and metastasis, induced apoptosis and G1 phase arrest in FaDu cells, and upregulated MGMT expression to reverse methylation status of MGMT promoter. CONCLUSIONS This study for the first time demonstrated the clinical value and the role of DNMT1 and MGMT in the biological function of hypopharyngeal squamous carcinoma. This work suggested that DNMT1 might serve as a potential therapeutic target for patients with hypopharyngeal squamous carcinoma.
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Affiliation(s)
- Ruxian Tian
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Yayun Lv
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Xin Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Limei Cui
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Xinxin Wu
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 40016, China
| | - Jingjing Li
- Binzhou Medical University, Yantai Yuhuangding Hospital, Yantai, Shandong, 264000, China
| | - Yao Yao
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Yujuan Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China
| | - Yakui Mou
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China.
| | - Xicheng Song
- Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, 264000, China.
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18
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Alkaff AH, Saragih M, Imana SN, Nasution MAF, Tambunan USF. Identification of DNA Methyltransferase-1 Inhibitor for Breast Cancer Therapy through Computational Fragment-Based Drug Design. Molecules 2021; 26:E375. [PMID: 33450856 PMCID: PMC7828308 DOI: 10.3390/molecules26020375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/08/2021] [Accepted: 01/10/2021] [Indexed: 01/09/2023] Open
Abstract
Epimutation by DNA Methyltransferase 1 (DNMT1), an epigenetic regulator enzyme, may lead to the proliferation of breast cancer. In this report, 168,686 natural products from the PubChem database were screened and modified by in silico method to acquire the potential inhibitor of DNMT1. The initial screening of PubChem natural products using Lipinski's and Veber's rules of three and toxic properties have resulted in 2601 fragment candidates. Four fragments from pharmacophore-based molecular docking simulation were modified by utilizing FragFP and the Lipinski's and Veber's rules of five, and resulted in 51,200 ligands. The toxicological screening collected 13,563 ligands for a series of pharmacophore-based molecular docking simulations to sort out the modified ligands, which had the better binding activity and interactions to DNMT1 compared to the standards, SAH, SAM, and SFG. This step resulted in five ligand candidates, namely C-7756, C-5769, C-1723, C-2129, and C-2140. The ADME-Tox properties prediction showed that the selected ligands are generally better than standards in terms of druglikeness, GI absorption, and oral bioavailability. C-7756 exhibited a stronger affinity to DNMT1 as well as better ADME-Tox properties compared to the other ligands.
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Affiliation(s)
| | | | | | | | - Usman Sumo Friend Tambunan
- Bioinformatics and Biomedicals Research Group, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, West Java, Indonesia; (A.H.A.); (M.S.); (S.N.I.); (M.A.F.N.)
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19
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Wong KK. DNMT1: A key drug target in triple-negative breast cancer. Semin Cancer Biol 2020; 72:198-213. [PMID: 32461152 DOI: 10.1016/j.semcancer.2020.05.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/04/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer. Altered epigenetics regulation including DNA hypermethylation by DNA methyltransferase 1 (DNMT1) has been implicated as one of the causes of TNBC tumorigenesis. In this review, the oncogenic functions rendered by DNMT1 in TNBCs, and DNMT1 inhibitors targeting TNBC cells are presented and discussed. In summary, DNMT1 expression is associated with poor breast cancer survival, and it is overexpressed in TNBC subtype. The oncogenic roles of DNMT1 in TNBCs include: (1) Repression of estrogen receptor (ER) expression; (2) Promotion of epithelial-mesenchymal transition (EMT) required for metastasis; (3) Induces cellular autophagy and; (4) Promotes the growth of cancer stem cells in TNBCs. DNMT1 confers these phenotypes by hypermethylating the promoter regions of ER, multiple tumor suppressor genes, microRNAs and epithelial markers involved in suppressing EMT. DNMT1 inhibitors exert anti-tumorigenic effects against TNBC cells. This includes the hypomethylating agents azacitidine, decitabine and guadecitabine that might sensitize TNBC patients to immune checkpoint blockade therapy. DNMT1 represents an epigenetic target for TNBC cells destruction as well as to derail their metastatic and aggressive phenotypes.
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Affiliation(s)
- Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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20
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Donovan MG, Wren SN, Cenker M, Selmin OI, Romagnolo DF. Dietary fat and obesity as modulators of breast cancer risk: Focus on DNA methylation. Br J Pharmacol 2020; 177:1331-1350. [PMID: 31691272 DOI: 10.1111/bph.14891] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/13/2022] Open
Abstract
Breast cancer (BC) is the most common cancer and second leading cause of cancer mortality in women worldwide. Validated biomarkers enhance efforts for early detection and treatment, which reduce the risk of mortality. Epigenetic signatures have been suggested as good biomarkers for early detection, prognosis and targeted therapy of BC. Here, we highlight studies documenting the modifying effects of dietary fatty acids and obesity on BC biomarkers associated with DNA methylation. We focus our analysis on changes elicited in writers of DNA methylation (i.e., DNA methyltransferases), global DNA methylation and gene-specific DNA methylation. To provide context, we precede this discussion with a review of the available evidence for an association between BC incidence and both dietary fat consumption and obesity. We also include a review of well-vetted BC biomarkers related to cytosine-guanine dinucleotides methylation and how they influence BC risk, prognosis, tumour characteristics and response to treatment. 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)
- Micah G Donovan
- Interdisciplinary Cancer Biology Graduate Program, University of Arizona, Tucson, Arizona
| | - Spencer N Wren
- Department of Nutritional Sciences, University of Arizona, Tucson, Arizona
| | - Mikia Cenker
- Department of Nutritional Sciences, University of Arizona, Tucson, Arizona
| | - Ornella I Selmin
- Department of Nutritional Sciences, University of Arizona, Tucson, Arizona.,The University of Arizona Cancer Center, Tucson, Arizona
| | - Donato F Romagnolo
- Department of Nutritional Sciences, University of Arizona, Tucson, Arizona.,The University of Arizona Cancer Center, Tucson, Arizona
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21
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Padayachee J, Singh M. Therapeutic applications of CRISPR/Cas9 in breast cancer and delivery potential of gold nanomaterials. Nanobiomedicine (Rij) 2020; 7:1849543520983196. [PMID: 33488814 PMCID: PMC7768851 DOI: 10.1177/1849543520983196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 12/03/2020] [Indexed: 12/12/2022] Open
Abstract
Globally, approximately 1 in 4 cancers in women are diagnosed as breast cancer (BC). Despite significant advances in the diagnosis and therapy BCs, many patients develop metastases or relapses. Hence, novel therapeutic strategies are required, that can selectively and efficiently kill malignant cells. Direct targeting of the genetic and epigenetic aberrations that occur in BC development is a promising strategy to overcome the limitations of current therapies, which target the tumour phenotype. The clustered regularly interspaced short palindromic repeats (CRISPR)/Cas system, composed of only an easily modifiable single guide RNA (sgRNA) sequence bound to a Cas9 nuclease, has revolutionised genome editing due to its simplicity and efficiency compared to earlier systems. CRISPR/Cas9 and its associated catalytically inactivated dCas9 variants facilitate the knockout of overexpressed genes, correction of mutations in inactivated genes, and reprogramming of the epigenetic landscape to impair BC growth. To achieve efficient genome editing in vivo, a vector is required to deliver the components to target cells. Gold nanomaterials, including gold nanoparticles and nanoclusters, display many advantageous characteristics that have facilitated their widespread use in theranostics, as delivery vehicles, and imaging and photothermal agents. This review highlights the therapeutic applications of CRISPR/Cas9 in treating BCs, and briefly describes gold nanomaterials and their potential in CRISPR/Cas9 delivery.
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Affiliation(s)
| | - Moganavelli Singh
- Nano-Gene and Drug Delivery Laboratory, Discipline of Biochemistry, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Durban, South Africa
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22
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Plasma Homocysteine and Polymorphisms of Genes Involved in Folate Metabolism Correlate with DNMT1 Gene Methylation Levels. Metabolites 2019; 9:metabo9120298. [PMID: 31817852 PMCID: PMC6950100 DOI: 10.3390/metabo9120298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 12/22/2022] Open
Abstract
DNA methyltransferase 1 (DNMT1) is responsible for the maintenance of DNA methylation patterns during cell division. Several human diseases are characterized by impaired DNMT1 gene methylation, but less is known about the factors that regulate DNMT1 promoter methylation levels. Dietary folates and related B-vitamins are essential micronutrients for DNA methylation processes, and we performed the present study to investigate the contribution of circulating folate, vitamin B12, homocysteine, and common polymorphisms in folate pathway genes to the DNMT1 gene methylation levels. We investigated DNMT1 gene methylation levels in peripheral blood DNA samples from 215 healthy individuals. All the DNA samples were genotyped for MTHFR 677C > T (rs1801133) and 1298A > C (rs1801131), MTRR 66A > G (rs1801394), MTR 2756A > G (rs1805087), SLC19A1 (RFC1) 80G > A (rs1051266), TYMS 28-bp tandem repeats (rs34743033) and 1494 6-bp insertion/deletion (indel) (rs34489327), DNMT3A -448A > G (rs1550117), and DNMT3B -149C > T (rs2424913) polymorphisms. Circulating homocysteine, folate, and vitamin B12 levels were available from 158 of the recruited individuals. We observed an inverse correlation between plasma homocysteine and DNMT1 methylation levels. Furthermore, both MTR rs1805087 and TYMS rs34743033 polymorphisms showed a statistically significant effect on DNMT1 methylation levels. The present study revealed several correlations between the folate metabolic pathway and DNMT1 promoter methylation that could be of relevance for those disorders characterized by altered DNA methylation.
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Guo M, Sinha S, Wang SM. Coupled Genome-Wide DNA Methylation and Transcription Analysis Identified Rich Biomarkers and Drug Targets in Triple-Negative Breast Cancer. Cancers (Basel) 2019; 11:E1724. [PMID: 31690011 PMCID: PMC6896154 DOI: 10.3390/cancers11111724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 10/30/2019] [Indexed: 02/02/2023] Open
Abstract
Triple-negative breast cancer (TNBC) has poor clinical prognosis. Lack of TNBC-specific biomarkers prevents active clinical intervention. We reasoned that TNBC must have its specific signature due to the lack of three key receptors to distinguish TNBC from other types of breast cancer. We also reasoned that coupling methylation and gene expression as a single unit may increase the specificity for the detected TNBC signatures. We further reasoned that choosing the proper controls may be critical to increasing the sensitivity to identify TNBC-specific signatures. Furthermore, we also considered that specific drugs could target the detected TNBC-specific signatures. We developed a system to identify potential TNBC signatures. It consisted of (1) coupling methylation and expression changes in TNBC to identify the methylation-regulated signature genes for TNBC; (2) using TPBC (triple-positive breast cancer) as the control to detect TNBC-specific signature genes; (3) searching in the drug database to identify those targeting TNBC signature genes. Using this system, we identified 114 genes with both altered methylation and expression, and 356 existing drugs targeting 10 of the 114 genes. Through docking and molecular dynamics simulation, we determined the structural basis between sapropterin, a drug used in the treatment of tetrahydrobiopterin deficiency, and PTGS2, a TNBC signature gene involved in the conversion of arachidonic acid to prostaglandins. Our study reveals the existence of rich TNBC-specific signatures, and many can be drug target and biomarker candidates for clinical applications.
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Affiliation(s)
- Maoni Guo
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau 999078, China.
| | - Siddharth Sinha
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau 999078, China.
| | - San Ming Wang
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau 999078, China.
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24
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Yu J, Zayas J, Qin B, Wang L. Targeting DNA methylation for treating triple-negative breast cancer. Pharmacogenomics 2019; 20:1151-1157. [PMID: 31755366 PMCID: PMC7026764 DOI: 10.2217/pgs-2019-0078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/23/2019] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) accounts for 15-20% of all invasive breast cancers and tends to have aggressive histological features and poor clinical outcomes. Unlike, estrogen receptor- or HER2-positive diseases, TNBC patients currently lack the US FDA-approved targeted therapies. DNA methylation is a critical mechanism of epigenetic modification. It is well known that aberrant DNA methylation contributes to the malignant transformation of cells by silencing critical tumor suppressor genes. DNA methyltransferase inhibitors reactivate silenced tumor suppressor genes and result in tumor growth arrest, with therapeutic effects observed in patients with hematologic malignancies. The antitumor effect of these DNA methyltransferase inhibitors has also been explored in solid tumors, especially in TNBC that currently lacks targeted therapies.
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Affiliation(s)
- Jia Yu
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905, USA
| | - Jacqueline Zayas
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic School of Medicine & The Mayo Clinic Medical Scientist Training Program, Mayo Clinic, Rochester, MN 55905, USA
| | - Bo Qin
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905, USA
- Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
| | - Liewei Wang
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905, USA
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Jin X, Li Y, Guo Y, Jia Y, Qu H, Lu Y, Song P, Zhang X, Shao Y, Qi D, Xu W, Quan C. ERα is required for suppressing OCT4-induced proliferation of breast cancer cells via DNMT1/ISL1/ERK axis. Cell Prolif 2019; 52:e12612. [PMID: 31012189 PMCID: PMC6668970 DOI: 10.1111/cpr.12612] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/04/2019] [Accepted: 03/18/2019] [Indexed: 12/12/2022] Open
Abstract
Objective POU5F1 (OCT4) is implicated in cancer stem cell self‐renewal. Currently, some studies have shown that OCT4 has a dual function in suppressing or promoting cancer progression. However, the precise molecular mechanism of OCT4 in breast cancer progression remains unclear. Materials and Methods RT‐PCR and Western blot were utilized to investigate OCT4 expression in breast cancer tissues and cells. Cell proliferation assays and mouse models were applied to determine the effects of OCT4 on breast cancer cell proliferation. DNMT1 inhibitors, ChIP, CoIP, IHC and ERα inhibitors were used to explore the molecular mechanism of OCT4 in breast cancer. Results OCT4 was down‐regulated in breast cancer tissues, and the overexpression of OCT4 promoted MDA‐MB‐231 cell proliferation and inhibited the proliferation of MCF‐7 cells in vitro and in vivo, respectively. Two DNMT1 inhibitors (5‐aza‐dC and zebularine) suppressed OCT4‐induced MDA‐MB‐231 cell proliferation through Ras/Raf1/ERK inactivation by targeting ISL1, which is the downstream of DNMT1. In contrast, OCT4 interacted with ERα, decreased DNMT1 expression and inactivated the Ras/Raf1/ERK signalling pathway in MCF‐7 cells. Moreover, ERα inhibitor (AZD9496) reversed the suppression of OCT4‐induced proliferation in MCF‐7 cells via the activation of ERK signalling pathway. Conclusions OCT4 is dependent on ERα to suppress the proliferation of breast cancer cells through DNMT1/ISL1/ERK axis.
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Affiliation(s)
- Xiangshu Jin
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yanru Li
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yantong Guo
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yiyang Jia
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Huinan Qu
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yan Lu
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Peiye Song
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Xiaoli Zhang
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yijia Shao
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Da Qi
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Wenhong Xu
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
| | - Chengshi Quan
- The Key Laboratory of Pathology, Ministry of Education, College of Basic Medical Science, Jilin University, Changchun, China
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26
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Su Y, Hopfinger NR, Nguyen TD, Pogash TJ, Santucci-Pereira J, Russo J. Epigenetic reprogramming of epithelial mesenchymal transition in triple negative breast cancer cells with DNA methyltransferase and histone deacetylase inhibitors. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:314. [PMID: 30547810 PMCID: PMC6295063 DOI: 10.1186/s13046-018-0988-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/30/2018] [Indexed: 12/23/2022]
Abstract
Background Triple negative breast cancer (TNBC) is an aggressive neoplasia with no effective therapy. Our laboratory has developed a unique TNBC cell model presenting epithelial mesenchymal transition (EMT) a process known to be important for tumor progression and metastasis. There is increasing evidence showing that epigenetic mechanisms are involved in the activation of EMT. The objective of this study is to epigenetically reverse the process of EMT in TNBC by using DNA methyltransferase inhibitors (DNMTi) and histone deacetylase inhibitors (HDACi). Methods We evaluated the antitumor effect of three DNMTi and six HDACi using our TNBC cell model by MTT assay, migration and invasion assay, three dimensional culture, and colony formation assay. We then performed the combined treatment both in vitro and in vivo using the most potent DNMTi and HDACi, and tested the combined treatment in a panel of breast cancer cell lines. We investigated changes of EMT markers and potential signaling pathways associated with the antitumor effects. Results We showed that DNMTi and HDACi can reprogram highly aggressive TNBC cells that have undergone EMT to a less aggressive phenotype. SGI-110 and MS275 are superior to other seven compounds being tested. The combination of SGI with MS275 exerts a greater effect than single agent alone in inhibiting cell proliferation, motility, colony formation, and stemness of cancer cells. We also demonstrated that MS275 and the combination of SGI with MS275 exert in vivo antitumor effect. We revealed that the combined treatment synergistically reverses EMT through inhibiting EpCAM cleavage and WNT signaling, suppressing mutant p53, ZEB1, and EZH2, and inducing E-cadherin, apoptosis, as well as histone H3 tri-methylation. Conclusions Our study showed that DNMTi and HDACi exert antitumor activity in TNBC cells partially by epigenetically reprograming EMT. Our findings strongly suggest that TNBC is sensitive to epigenetic therapies. Therefore, we propose a new strategy to treat TNBC by using the combination of SGI-110 with MS275, which exerts superior antitumor effects by simultaneously targeting multiple pathways. Electronic supplementary material The online version of this article (10.1186/s13046-018-0988-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yanrong Su
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA.
| | - Nathan R Hopfinger
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA
| | - Theresa D Nguyen
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA
| | - Thomas J Pogash
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA
| | - Julia Santucci-Pereira
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA
| | - Jose Russo
- The Irma H. Russo, MD Breast Cancer Research Laboratory, Fox Chase Cancer Center-Temple University Health System, Philadelphia, PA, 19111, USA.
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Zhang Y, Wang L, Gao P, Sun Z, Li N, Lu Y, Shen J, Sun J, Yang Y, Dai H, Cai H. ISL1 promotes cancer progression and inhibits cisplatin sensitivity in triple-negative breast cancer cells. Int J Mol Med 2018; 42:2343-2352. [PMID: 30226569 PMCID: PMC6192754 DOI: 10.3892/ijmm.2018.3842] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 07/31/2018] [Indexed: 12/26/2022] Open
Abstract
Triple‑negative breast cancer (TNBC) is a type of breast cancer that is characterized by the lack of expression of estrogen and progesterone receptors, and epidermal growth factor receptor 2. Therefore, there is an absence of a specific target for effective therapy in TNBC. Cisplatin is usually employed as a first‑line chemotherapy agent for patients with TNBC. However, resistance remains an obstacle for cisplatin‑based chemotherapy, due to its elusive underlying mechanism. Previously, abnormal expression of Islet 1 (ISL1) was demonstrated to be closely associated with cancer development and progression. The present study revealed that (ISL1) was significantly upregulated in TNBC tissues in comparison with adjacent normal tissues. Overexpression of ISL1 markedly promoted the proliferation and invasion of the TNBC MDA‑MB‑231 and MDA‑MB‑468 cell lines, while knockdown of ISL1 inhibited cell invasion and proliferation in these cell lines. In addition, overexpression of ISL1 reversed cisplatin‑induced cell apoptosis, while knockdown of ISL1 enhanced apoptosis following cisplatin treatment in MDA‑MB‑231 and MDA‑MB‑468 cells. Furthermore, the levels of the anti‑apoptotic proteins, phosphorylated‑protein kinase B and B‑cell lymphoma‑2 (Bcl‑2), were significantly decreased, while the levels of the pro‑apoptotic protein Bcl‑2‑associated X protein were remarkably increased in response to cisplatin treatment. The present study revealed that ISL1 overexpression reversed the protein expression profile of p‑Akt, Bcl‑2 and Bax, while ISL1 knockdown promoted cell apoptosis. Therefore, the data of the present study demonstrated that ISL1 contributes to TNBC progression and reverses cell sensitivity towards cisplatin in TNBC cells, suggesting that ISL1 is a potential therapeutic target for the treatment of TNBC.
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Affiliation(s)
- Yang Zhang
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Lu Wang
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Peng Gao
- The Second Department of Chemoradiotherapy, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Zhiguo Sun
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Ning Li
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yanqin Lu
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Jianglun Shen
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Jian Sun
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yiming Yang
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Hao Dai
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
| | - Haifeng Cai
- The Second Department of Breast Surgery, Tangshan People's Hospital, Tangshan, Hebei 063000, P.R. China
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Al-Kharashi LA, Al-Mohanna FH, Tulbah A, Aboussekhra A. The DNA methyl-transferase protein DNMT1 enhances tumor-promoting properties of breast stromal fibroblasts. Oncotarget 2017; 9:2329-2343. [PMID: 29416775 PMCID: PMC5788643 DOI: 10.18632/oncotarget.23411] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/04/2017] [Indexed: 01/28/2023] Open
Abstract
The activation of breast stromal fibroblasts is a crucial step toward tumor growth and spread. Therefore, it is extremely important to understand the molecular basis of this activation and determine the molecules and the mechanisms responsible for its sustainability. In the present report we have shown that the DNA methyl-transferase protein DNMT1 is critical for the activation of breast stromal fibroblasts as well as the persistence of their active status. Indeed, we have first revealed DNMT1 up-regulation in most cancer-associated fibroblasts relative to their corresponding adjacent normal fibroblasts. This effect resulted from HuR-dependent stabilization of the DNMT1 mRNA. Furthermore, ectopic expression of DNMT1 activated primary normal breast fibroblasts and promoted their pro-carcinogenic effects, both in vitro and in orthotopic tumor xenografts. By contrast, specific DNMT1 knockdown normalized breast myofibroblasts and repressed their cancer-promoting properties. These effects were sustained through inhibition of the IL-6/STAT3/NF-κB epigenetic cancer/inflammation positive feedback loop. Furthermore, we have shown that DNMT1-related activation of breast fibroblasts is mediated through upregulation of the RNA binding protein AUF1, which is also part of the loop. The present data demonstrate the critical function of DNMT1 in breast cancer-related sustained activation of breast stromal fibroblasts.
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Affiliation(s)
- Layla A Al-Kharashi
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, KSA.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Saud University, Riyadh 11451, KSA
| | - Falah H Al-Mohanna
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, KSA
| | - Asma Tulbah
- Department of Pathology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, KSA
| | - Abdelilah Aboussekhra
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, KSA
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29
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Wu J, Shuang Z, Zhao J, Tang H, Liu P, Zhang L, Xie X, Xiao X. Linc00152 promotes tumorigenesis by regulating DNMTs in triple-negative breast cancer. Biomed Pharmacother 2017; 97:1275-1281. [PMID: 29156515 DOI: 10.1016/j.biopha.2017.11.055] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/08/2017] [Accepted: 11/08/2017] [Indexed: 12/11/2022] Open
Abstract
Long noncoding RNA (lncRNA) is a significant factor that regulates various aspects of genome activity, including tumor development and progression. Linc00152, a member of lncRNA, is unregulated in various types of cancer. However, its role in breast cancer, especially in triple-negative breast cancer (TNBC), is unclear. In this study, we found that linc00152 was highly expressed in all basal-like cell lines and in the majority of TNBC tissues. Linc00152 suppression by shRNA significantly inhibited invasion and colony growth. Such suppression also triggered apoptosis in vitro and inhibited tumor growth in vivo. We also revealed that linc00152 partially enhanced breast cancer tumorigenesis by inactivation of the BRCA1/PTEN through DNA methyltransferases. This study provides new insight regarding linc00152 as a promising biomarker and therapeutic target for human TNBC treatment.
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Affiliation(s)
- Jiali Wu
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Zeyu Shuang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Jianfu Zhao
- Department of Emergency, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Peng Liu
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Lijuan Zhang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Xiaoming Xie
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
| | - Xiangsheng Xiao
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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30
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Xiang S, Zou P, Tang Q, Zheng F, Wu J, Chen Z, Hann SS. HOTAIR-mediated reciprocal regulation of EZH2 and DNMT1 contribute to polyphyllin I-inhibited growth of castration-resistant prostate cancer cells in vitro and in vivo. Biochim Biophys Acta Gen Subj 2017; 1862:589-599. [PMID: 29221985 DOI: 10.1016/j.bbagen.2017.12.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/27/2017] [Accepted: 12/04/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Polyphyllin I (PPI), one of the steroidal saponins in paris polyphylla, has been reported to exhibit antitumor effects. However, the detailed molecular mechanism underlying this has not been elucidated. METHODS Cell viability and cell cycle distribution were measured using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and Flow cytometry assays, respectively. Cell invasion and migration were examined by Transwell invasion and wound healing assays. Western blot analysis was performed to examine the protein expressions of zeste homolog 2 (EZH2), DNA methyltransferase 1 (DNMT1). QRT-PCR was used to examine the levels of long non-coding RNA (lncRNA) HOX transcript antisense RNA (HOTAIR). Small interfering RNAs (siRNAs) method was used to knockdown HOTAIR. Exogenously expressions of HOTAIR, DNMT1 and EZH2 were carried out by Transient transfection assays. EZH2 promoter activity was measured by Secrete-Pair Dual Luminescence Assay Kit. A nude mice xenograft model was used to confirm the findings in vitro. RESULTS We showed that PPI significantly inhibited growth, induced cell cycle arrest of castration-resistant prostate cancer (CRPC) cells. In addition, PPI also reduced the migration and invasion in CRPC cells. In mechanism, we found that PPI decreased the protein expressions of EZH2, DNMT1 and levels of HOTAIR. Interestingly, silenced HOTAIR reduced EZH2 and DNMT1 protein expressions. On the contrary, exogenously expressed HOTAIR resisted PPI-inhibited EZH2 and DNMT1 protein expressions, EZH2 promoter activity and cell growth. Moreover, excessive EZH2 antagonized PPI-suppressed DNMT1 protein expression or vice versa. Consistent with this, PPI inhibited tumor growth, HOTAIR, the protein expressions of DNMT1 and EZH2 in vivo. CONCLUSION Our results show that PPI inhibits growth of CRPC cells through inhibition of HOTAIR expression, subsequently; this results in the repression of DNMT1 and EZH2 expressions. The interactions among HOTAIR, DNMT1 and EZH2, and reciprocal regulation of DNMT1 and EZH2 contribute to the overall responses of PPI. This study reveals a novel mechanism for HOTAIR-mediated regulating DNMT1 and EZH2 in response to PPI in inhibition of the growth of CRPC cells.
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Affiliation(s)
- SongTao Xiang
- Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - PeiLiang Zou
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China; Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Qing Tang
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Fang Zheng
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - JingJing Wu
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - ZhiQiang Chen
- Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China.
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31
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Jhan JR, Andrechek ER. Triple-negative breast cancer and the potential for targeted therapy. Pharmacogenomics 2017; 18:1595-1609. [PMID: 29095114 PMCID: PMC5694022 DOI: 10.2217/pgs-2017-0117] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Breast cancer is composed of several well-recognized subtypes including estrogen receptor, progesterone receptor and HER2 triple-negative breast cancer (TNBC). Without available targeted therapy options, standard of care for TNBC remains chemotherapy. It is of interest to note that TNBC tumors generally have better responses to chemotherapy compared with other subtypes. However, patients without complete response account for approximately 80% of TNBC. Mounting evidence suggests significant heterogeneity within the TNBC subtype, and studies have focused on genetic targets with high rates of altered expression. Recent studies suggest clear possibilities for benefits from targeted therapy in TNBC. In this review, we summarize studies of targeted therapy, including within mouse models, and discuss their applications in the development of combinatorial treatments to treat TNBC.
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Affiliation(s)
- Jing-Ru Jhan
- Department of Physiology, Michigan State University, 2194 Biomedical Physical Sciences Building, 567 Wilson Rd., East Lansing, MI 48824, USA
| | - Eran R Andrechek
- Department of Physiology, Michigan State University, 2194 Biomedical Physical Sciences Building, 567 Wilson Rd., East Lansing, MI 48824, USA
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Loo SK, Ch'ng ES, Lawrie CH, Muruzabal MA, Gaafar A, Pomposo MP, Husin A, Md Salleh MS, Banham AH, Pedersen LM, Møller MB, Green TM, Wong KK. DNMT1 is predictive of survival and associated with Ki-67 expression in R-CHOP-treated diffuse large B-cell lymphomas. Pathology 2017; 49:731-739. [PMID: 29074044 DOI: 10.1016/j.pathol.2017.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 08/16/2017] [Accepted: 08/20/2017] [Indexed: 11/26/2022]
Abstract
DNMT1 is a target of approved anti-cancer drugs including decitabine. However, the prognostic value of DNMT1 protein expression in R-CHOP-treated diffuse large B-cell lymphomas (DLBCLs) remains unexplored. Here we showed that DNMT1 was expressed in the majority of DLBCL cases (n = 209/230, 90.9%) with higher expression in germinal centre B-cell-like (GCB)-DLBCL subtype. Low and negative DNMT1 expression (20% cut-off, n = 33/230, 14.3%) was predictive of worse overall survival (OS; p < 0.001) and progression-free survival (PFS; p < 0.001). Nonetheless, of the 209 DNMT1 positive patients, 33% and 42% did not achieve 5-year OS and PFS, respectively, indicating that DNMT1 positive patients showed considerably heterogeneous outcomes. Moreover, DNMT1 was frequently expressed in mitotic cells and significantly correlated with Ki-67 or BCL6 expression (r = 0.60 or 0.44, respectively; p < 0.001). We demonstrate that DNMT1 is predictive of DLBCL patients' survival, and suggest that DNMT1 could be a DLBCL therapeutic target due to its significant association with Ki-67.
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Affiliation(s)
- Suet Kee Loo
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Ewe Seng Ch'ng
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Pulau Pinang, Malaysia
| | - Charles H Lawrie
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom; Oncology Department, Biodonostia Research Institute, San Sebastian, Spain
| | | | - Ayman Gaafar
- Department of Pathology, Hospital Universitario Cruces, Barakaldo, Spain
| | | | - Azlan Husin
- Department of Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Md Salzihan Md Salleh
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Alison H Banham
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Lars M Pedersen
- Department of Haematology, Herlev University Hospital, Copenhagen, Denmark
| | - Michael B Møller
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Tina M Green
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.
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Tang H, Lu W, Yang Z, Chen Y, Wang J, Lu S, Jiang K. Significance of incorporation of DNMT1 and HLA-DRα with TNM staging in patients with hepatocellular carcinoma after curative resection. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:9372-9381. [PMID: 31966809 PMCID: PMC6966003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/24/2017] [Indexed: 06/10/2023]
Abstract
Hepatocellular carcinoma (HCC) is the most common type of hepatic cancer and is particularly a problem in China. Bio-molecular markers have been demonstrated to be of prognostic significance and might help predict tumor behavior. In our study, we aimed to assess the prognostic values of DNA methyltransferase 1 (DNMT1), HLA-DRα, and β-catenin, as well as the combined use of molecular biomarkers, clinicopathological parameters and the TNM staging system to find a method for superior prognostic performance for HCC by analyzing a Chinese HCC cohort. We revealed the significant prognostic roles of DNMT1 (OR: 2.570; 95% CI: 1.401-4.715; P = 0.002) and HLA-DRα (0.350; 0.189-0.616; 0.001), and further developed an estimation formula to predict prognosis in HCC patients after curative resection, based on TNM staging, operative blood loss, abnormal total bilirubin, DNMT1 and HLA-DRα. The receiver operating characteristic curve analysis showed that prediction from the multivariate logistic regression had an area of 0.847 and performed better than the conventional TNM staging system, as well as other current HCC staging systems. Our study demonstrated the prognostic values of DNMT1 and HLA-DRα in HCC patients after curative resection. Additionally, we developed a prognostic estimation formula featured better stratification ability than the conventional TNM staging and provided a practicable stratification method for HCC patients after curative resection.
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Affiliation(s)
- Haowen Tang
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
- Graduate School of Medicine, The University of TokyoTokyo, Japan
| | - Wenping Lu
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
| | - Zhanyu Yang
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
| | - Yongliang Chen
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
| | - Jing Wang
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
| | - Shichun Lu
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
| | - Kai Jiang
- Hospital and Institute of Hepatobiliary Surgery, Chinese PLA General HospitalBeijing, China
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Guo F, Ru Q, Zhang J, He S, Yu J, Zheng S, Wang J. Inflammation factors in hepatoblastoma and their clinical significance as diagnostic and prognostic biomarkers. J Pediatr Surg 2017; 52:1496-1502. [PMID: 28188039 DOI: 10.1016/j.jpedsurg.2017.01.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 01/18/2017] [Accepted: 01/21/2017] [Indexed: 01/17/2023]
Abstract
PURPOSE The aims of this study were to identify inflammation factors in hepatoblastoma tissue that correlated with different clinical characteristics, and to explore the probability as predictive biomarkers for diagnosis and prognosis. METHODS SELDI-TOF-MS was performed to screen protein peaks that were significantly highly expressed in tumor tissue compared with adjacent liver tissue. After removing proteins larger than 30kDa, the targeted peaks were separated by solid phase extraction and tricine-SDS-PAGE. Protein fragments produced by in-gel digestion were identified by LC-MS/MS. Immunohistochemical assays further confirmed these results. Overall survival curves were graphed by Kaplan-Meier method and multivariate analysis was performed by Cox proportional hazards regression model. RESULTS Three protein peaks (m/z 12,138, m/z 13,462, and m/z 15,120) that were significantly upregulated in the tumor tissue were identified as macrophage migration inhibitory factor (MIF), chemokine (C-X-C motif) ligand 7 (CXCL7), and interleukin 25 (IL-25). These factors were closely related to clinical stage, lymph node metastasis, vascular invasion and serum AFP level. High expression of each inflammatory marker indicated poor prognosis. Multivariate analysis suggested that MIF, CXCL7, and IL-25 were prognostic factors independent of patient sex, age and tumor histological type. CONCLUSIONS MIF, CXCL7, and IL-25 might be considered as effective inflammation factors for diagnosis and prognosis of hepatoblastoma and as potential novel treatment targets through inhibition of inflammatory function. TYPE OF STUDY Prognosis study LEVEL OF EVIDENCE: Level I.
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Affiliation(s)
- Fei Guo
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Qin Ru
- Record Room, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan, PR China
| | - Junjie Zhang
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Shen He
- Department of Psychiatry, Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Jiekai Yu
- Institute of Cancer, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310000, Zhejiang, PR China
| | - Shu Zheng
- Institute of Cancer, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310000, Zhejiang, PR China
| | - Jiaxiang Wang
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China.
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Zheng F, Wu J, Tang Q, Xiao Q, Wu W, Hann SS. The enhancement of combination of berberine and metformin in inhibition of DNMT1 gene expression through interplay of SP1 and PDPK1. J Cell Mol Med 2017; 22:600-612. [PMID: 28840963 PMCID: PMC5742731 DOI: 10.1111/jcmm.13347] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/14/2017] [Indexed: 12/14/2022] Open
Abstract
Berberine (BBR), one of active alkaloid found in the rhizome, exhibited anti‐cancer properties. We have showed that BBR inhibited growth of non‐small cell lung cancer (NSCLC) cells through mitogen‐activated protein kinase (MAPK)‐mediated increase in forkhead box O3a (FOXO3a). However, the in‐depth mechanism underlying the anti‐tumor effects still remained to be elucidated. Herein, we further confirmed that BBR not only induced cell cycle arrest, but also reduced migration and invasion of NSCLC cells. Mechanistically, we observed that BBR reduced 3‐phosphoinositide‐dependent protein kinase‐1 (PDPK1) and transcription factor SP1 protein expressions. Exogenously expressed SP1 overcame BBR‐inhibited PDPK1 expression. Moreover, BBR inhibited DNA methyltransferase 1 (DNMT1) gene expression and overexpressed DNMT1 resisted BBR‐inhibited cell growth. Intriguingly, overexpressed PDPK1 antagonized BBR‐inhibited SP1 and DNMT1 expressions. Finally, metformin enhanced the effects of BBR both in vitro and in vivo. Collectively, we observe that BBR inhibits proliferation of NSCLC cells through inhibition of SP1 and PDPK1; this results in a reduction of DNMT1 expression. The interplay of PDPK1 and SP1 contributes to the inhibition of DNMT1 in response to BBR. In addition, there is a synergy of BBR and metformin. This study uncovers a new mechanism of BBR in combination with metformin for NSCLC‐associated therapy.
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Affiliation(s)
- Fang Zheng
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - JingJing Wu
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Qing Tang
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Qian Xiao
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - WanYin Wu
- Department of Medical Oncology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Swei Sunny Hann
- Department of Medical Oncology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
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