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Wang Y, Bu N, Luan XF, Song QQ, Ma BF, Hao W, Yan JJ, Wang L, Zheng XL, Maimaitiyiming Y. Harnessing the potential of long non-coding RNAs in breast cancer: from etiology to treatment resistance and clinical applications. Front Oncol 2024; 14:1337579. [PMID: 38505593 PMCID: PMC10949897 DOI: 10.3389/fonc.2024.1337579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024] Open
Abstract
Breast cancer (BC) is the most common malignancy among women and a leading cause of cancer-related deaths of females worldwide. It is a complex and molecularly heterogeneous disease, with various subtypes that require different treatment strategies. Despite advances in high-resolution single-cell and multinomial technologies, distant metastasis and therapeutic resistance remain major challenges for BC treatment. Long non-coding RNAs (lncRNAs) are non-coding RNAs with more than 200 nucleotides in length. They act as competing endogenous RNAs (ceRNAs) to regulate post-transcriptional gene stability and modulate protein-protein, protein-DNA, and protein-RNA interactions to regulate various biological processes. Emerging evidence suggests that lncRNAs play essential roles in human cancers, including BC. In this review, we focus on the roles and mechanisms of lncRNAs in BC progression, metastasis, and treatment resistance, and discuss their potential value as therapeutic targets. Specifically, we summarize how lncRNAs are involved in the initiation and progression of BC, as well as their roles in metastasis and the development of therapeutic resistance. We also recapitulate the potential of lncRNAs as diagnostic biomarkers and discuss their potential use in personalized medicine. Finally, we provide lncRNA-based strategies to promote the prognosis of breast cancer patients in clinical settings, including the development of novel lncRNA-targeted therapies.
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Affiliation(s)
- Yun Wang
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Na Bu
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-fei Luan
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qian-qian Song
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ba-Fang Ma
- Department of Immunology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China
| | - Wenhui Hao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Jing-jing Yan
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Wang
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-ling Zheng
- Department of Pharmacy, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yasen Maimaitiyiming
- Department of Immunology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China
- Cancer Center, Zhejiang University School of Medicine, Hangzhou, China
- Women’s Hospital, Institute of Genetics, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Xinjiang Medical University, Urumqi, China
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2
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Circulating Tumor DNA Methylation Biomarkers for Characterization and Determination of the Cancer Origin in Malignant Liver Tumors. Cancers (Basel) 2023; 15:cancers15030859. [PMID: 36765815 PMCID: PMC9913861 DOI: 10.3390/cancers15030859] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
Malignant liver tumors include primary malignant liver tumors and liver metastases. They are among the most common malignancies worldwide. The disease has a poor prognosis and poor overall survival, especially with liver metastases. Therefore, early detection and differentiation between malignant liver tumors are critical for patient treatment selection. The detection of cancer and the prediction of its origin is possible with a DNA methylation profile of the tumor DNA compared to that of normal cells, which reflects tissue differentiation and malignant transformation. New technologies enable the characterization of the tumor methylome in circulating tumor DNA (ctDNA), providing a variety of new ctDNA methylation biomarkers, which can provide additional information to clinical decision-making. Our review of the literature provides insight into methylation changes in ctDNA from patients with common malignant liver tumors and can serve as a starting point for further research.
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3
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Integrating age, BMI, and serum N-glycans detected by MALDI mass spectrometry to classify suspicious mammogram findings as benign lesions or breast cancer. Sci Rep 2022; 12:20801. [PMID: 36460712 PMCID: PMC9718781 DOI: 10.1038/s41598-022-25401-0] [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: 09/09/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
While mammograms are the standard tool for breast cancer screening, there remains challenges for mammography to effectively distinguish benign lesions from breast cancers, leading to many unnecessary biopsy procedures. A blood-based biomarker could provide a minimally invasive supplemental assay to increase the specificity of breast cancer screening. Serum N-glycosylation alterations have associations with many cancers and several of the clinical characteristics of breast cancer. The current study utilized a high-throughput mass spectrometry workflow to identify serum N-glycans with differences in intensities between patients that had a benign lesion from patients with breast cancer. The overall N-glycan profiles of the two patient groups had no differences, but there were several individual N-glycans with significant differences in intensities between patients with benign lesions and ductal carcinoma in situ (DCIS). Many N-glycans had strong associations with age and/or body mass index, but there were several of these associations that differed between the patients with benign lesions and breast cancer. Accordingly, the samples were stratified by the patient's age and body mass index, and N-glycans with significant differences between these subsets were identified. For women aged 50-74 with a body mass index of 18.5-24.9, a model including the intensities of two N-glycans, 1850.666 m/z and 2163.743 m/z, age, and BMI were able to clearly distinguish the breast cancer patients from the patients with benign lesions with an AUROC of 0.899 and an optimal cutoff with 82% sensitivity and 84% specificity. This study indicates that serum N-glycan profiling is a promising approach for providing clarity for breast cancer screening, especially within the subset of healthy weight women in the age group recommended for mammograms.
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4
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Duque G, Manterola C, Otzen T, Arias C, Palacios D, Mora M, Galindo B, Holguín JP, Albarracín L. Cancer Biomarkers in Liquid Biopsy for Early Detection of Breast
Cancer: A Systematic Review. Clin Med Insights Oncol 2022; 16:11795549221134831. [PMCID: PMC9634213 DOI: 10.1177/11795549221134831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
Background: Breast cancer (BC) is the most common neoplasm in women worldwide. Liquid
biopsy (LB) is a non-invasive diagnostic technique that allows the analysis
of biomarkers in different body fluids, particularly in peripheral blood and
also in urine, saliva, nipple discharge, volatile respiratory fluids, nasal
secretions, breast milk, and tears. The objective was to analyze the
available evidence related to the use of biomarkers obtained by LB for the
early diagnosis of BC. Methods: Articles related to the use of biomarkers for the early diagnosis of BC due
to LB, published between 2010 and 2022, from the databases (WoS, EMBASE,
PubMed, and SCOPUS) were included. The MInCir diagnostic scale was applied
in the articles to determine their methodological quality (MQ). Descriptive
statistics were used, as well as determination of weighted averages of each
variable, to analyze the extracted data. Sensitivity, specificity, and area
under the curve values for specific biomarkers (individual or in panels) are
described. Results: In this systematic review (SR), 136 articles met the selection criteria,
representing 17 709 patients with BC. However, 95.6% were case-control
studies. In 96.3% of cases, LB was performed in peripheral blood samples.
Most of the articles were based on microRNA (miRNA) analysis. The mean MQ
score was 25/45 points. Sensitivity, specificity, and area under the curve
values for specific biomarkers (individual or in panels) have been
found. Conclusions: The determination of biomarkers through LB is a useful mechanism for the
diagnosis of BC. The analysis of miRNA in peripheral blood is the most
studied methodology. Our results indicate that LB has a high sensitivity and
specificity for the diagnosis of BC, especially in early stages.
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Affiliation(s)
- Galo Duque
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile,Faculty of Medicine, Universidad del
Azuay, Cuenca, Ecuador,Galo Duque, Faculty of Medicine,
Universidad del Azuay. Postal address: Av. 24 de Mayo y Hernán Malo, Cuenca,
Ecuador 010107.
| | - Carlos Manterola
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile,Center of Excellence in Morphological
and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile
| | - Tamara Otzen
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile,Center of Excellence in Morphological
and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile
| | - Cristina Arias
- Faculty of Medicine, Universidad del
Azuay, Cuenca, Ecuador
| | | | - Miriann Mora
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile,Faculty of Medicine, Universidad del
Azuay, Cuenca, Ecuador
| | - Bryan Galindo
- Faculty of Medicine, Universidad del
Azuay, Cuenca, Ecuador
| | - Juan Pablo Holguín
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile,Faculty of Medicine, Universidad del
Azuay, Cuenca, Ecuador
| | - Lorena Albarracín
- Medical Sciences PhD Program,
Universidad de La Frontera, Temuco, Chile
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5
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Luo HY, Shen HY, Perkins RS, Wang YX. Adenosine Kinase on Deoxyribonucleic Acid Methylation: Adenosine Receptor-Independent Pathway in Cancer Therapy. Front Pharmacol 2022; 13:908882. [PMID: 35721189 PMCID: PMC9200284 DOI: 10.3389/fphar.2022.908882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022] Open
Abstract
Methylation is an important mechanism contributing to cancer pathology. Methylation of tumor suppressor genes and oncogenes has been closely associated with tumor occurrence and development. New insights regarding the potential role of the adenosine receptor-independent pathway in the epigenetic modulation of DNA methylation offer the possibility of new interventional strategies for cancer therapy. Targeting DNA methylation of cancer-related genes is a promising therapeutic strategy; drugs like 5-Aza-2′-deoxycytidine (5-AZA-CdR, decitabine) effectively reverse DNA methylation and cancer cell growth. However, current anti-methylation (or methylation modifiers) are associated with severe side effects; thus, there is an urgent need for safer and more specific inhibitors of DNA methylation (or DNA methylation modifiers). The adenosine signaling pathway is reported to be involved in cancer pathology and participates in the development of tumors by altering DNA methylation. Most recently, an adenosine metabolic clearance enzyme, adenosine kinase (ADK), has been shown to influence methylation on tumor suppressor genes and tumor development and progression. This review article focuses on recent updates on ADK and its two isoforms, and its actions in adenosine receptor-independent pathways, including methylation modification and epigenetic changes in cancer pathology.
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Affiliation(s)
- Hao-Yun Luo
- Chongqing Medical University, Chongqing, China.,Department of Gastrointestinal and Anorectal Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China
| | - Hai-Ying Shen
- Department of Neuroscience, Legacy Research Institute, Portland, OR, United States.,Integrative Physiology and Neuroscience, Washington State University, Vancouver, WA, United States
| | - R Serene Perkins
- Legacy Tumor Bank, Legacy Research Institute, Portland, OR, United States.,Mid-Columbia Medical Center, The Dalles, OR, United States
| | - Ya-Xu Wang
- Chongqing Medical University, Chongqing, China.,Department of Gastrointestinal and Anorectal Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China
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6
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Kashyap D, Pal D, Sharma R, Garg VK, Goel N, Koundal D, Zaguia A, Koundal S, Belay A. Global Increase in Breast Cancer Incidence: Risk Factors and Preventive Measures. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9605439. [PMID: 35480139 PMCID: PMC9038417 DOI: 10.1155/2022/9605439] [Citation(s) in RCA: 150] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/25/2022] [Accepted: 03/21/2022] [Indexed: 02/07/2023]
Abstract
Breast cancer is a global cause for concern owing to its high incidence around the world. The alarming increase in breast cancer cases emphasizes the management of disease at multiple levels. The management should start from the beginning that includes stringent cancer screening or cancer registry to effective diagnostic and treatment strategies. Breast cancer is highly heterogeneous at morphology as well as molecular levels and needs different therapeutic regimens based on the molecular subtype. Breast cancer patients with respective subtype have different clinical outcome prognoses. Breast cancer heterogeneity emphasizes the advanced molecular testing that will help on-time diagnosis and improved survival. Emerging fields such as liquid biopsy and artificial intelligence would help to under the complexity of breast cancer disease and decide the therapeutic regimen that helps in breast cancer management. In this review, we have discussed various risk factors and advanced technology available for breast cancer diagnosis to combat the worst breast cancer status and areas that need to be focused for the better management of breast cancer.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Deeksha Pal
- Department of Translational and Regenerative Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Riya Sharma
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Vivek Kumar Garg
- Department of Medical Laboratory Technology, University Institute of Applied Health Sciences, Chandigarh University (Gharuan), Mohali 140313, India
| | - Neelam Goel
- Department of Information Technology, University Institute of Engineering & Technology, Panjab University, Chandigarh 160014, India
| | - Deepika Koundal
- Department of Systemics, School of Computer Science, University of Petroleum & Energy Studies, Dehradun, India
| | - Atef Zaguia
- Department of computer science, College of Computers and Information Technology, Taif University, P.O. BOX 11099, Taif 21944, Saudi Arabia
| | - Shubham Koundal
- Department of Medical Laboratory Technology, University Institute of Applied Health Sciences, Chandigarh University (Gharuan), Mohali 140313, India
| | - Assaye Belay
- Department of Statistics, Mizan-Tepi University, Ethiopia
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7
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Afzal S, Hassan M, Ullah S, Abbas H, Tawakkal F, Khan MA. Breast Cancer; Discovery of Novel Diagnostic Biomarkers, Drug Resistance, and Therapeutic Implications. Front Mol Biosci 2022; 9:783450. [PMID: 35265667 PMCID: PMC8899313 DOI: 10.3389/fmolb.2022.783450] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 02/02/2022] [Indexed: 12/12/2022] Open
Abstract
Breast cancer is the second most reported cancer in women with high mortality causing millions of cancer-related deaths annually. Early detection of breast cancer intensifies the struggle towards discovering, developing, and optimizing diagnostic biomarkers that can improve its prognosis and therapeutic outcomes. Breast cancer-associated biomarkers comprise macromolecules, such as nucleic acid (DNA/RNA), proteins, and intact cells. Advancements in molecular technologies have identified all types of biomarkers that are exclusively studied for diagnostic, prognostic, drug resistance, and therapeutic implications. Identifying biomarkers may solve the problem of drug resistance which is a challenging obstacle in breast cancer treatment. Dysregulation of non-coding RNAs including circular RNAs (circRNAs) and microRNAs (miRNAs) initiates and progresses breast cancer. The circulating multiple miRNA profiles promise better diagnostic and prognostic performance and sensitivity than individual miRNAs. The high stability and existence of circRNAs in body fluids make them a promising new diagnostic biomarker. Many therapeutic-based novels targeting agents have been identified, including ESR1 mutation (DNA mutations), Oligonucleotide analogs and antagonists (miRNA), poly (ADP-ribose) polymerase (PARP) in BRCA mutations, CDK4/6 (cell cycle regulating factor initiates tumor progression), Androgen receptor (a steroid hormone receptor), that have entered clinical validation procedure. In this review, we summarize the role of novel breast cancer diagnostic biomarkers, drug resistance, and therapeutic implications for breast cancer.
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Affiliation(s)
- Samia Afzal
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
- *Correspondence: Samia Afzal,
| | - Muhammad Hassan
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Safi Ullah
- Department of Genetics, Hazara University, Mansehra, Pakistan
| | - Hazrat Abbas
- Department of Genetics, Hazara University, Mansehra, Pakistan
| | - Farah Tawakkal
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Mohsin Ahmad Khan
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
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8
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Vietri MT, D'Elia G, Benincasa G, Ferraro G, Caliendo G, Nicoletti GF, Napoli C. DNA methylation and breast cancer: A way forward (Review). Int J Oncol 2021; 59:98. [PMID: 34726251 DOI: 10.3892/ijo.2021.5278] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/01/2021] [Indexed: 11/05/2022] Open
Abstract
The current management of breast cancer (BC) lacks specific non‑invasive biomarkers able to provide an early diagnosis of the disease. Epigenetic‑sensitive signatures are influenced by environmental exposures and are mediated by direct molecular mechanisms, mainly guided by DNA methylation, which regulate the interplay between genetic and non‑genetic risk factors during cancerogenesis. The inactivation of tumor suppressor genes due to promoter hypermethylation is an early event in carcinogenesis. Of note, targeted tumor suppressor genes are frequently hypermethylated in patient‑derived BC tissues and peripheral blood biospecimens. In addition, epigenetic alterations in triple‑negative BC, as the most aggressive subtype, have been identified. Thus, detecting both targeted and genome‑wide DNA methylation changes through liquid‑based assays appears to be a useful clinical strategy for early detection, more accurate risk stratification and a personalized prediction of therapeutic response in patients with BC. Of note, the DNA methylation profile may be mapped by isolating the circulating tumor DNA from the plasma as a more accessible biospecimen. Furthermore, the sensitivity to treatment with chemotherapy, hormones and immunotherapy may be altered by gene‑specific DNA methylation, suggesting novel potential drug targets. Recently, the use of epigenetic drugs administered alone and/or with anticancer therapies has led to remarkable results, particularly in patients with BC resistant to anticancer treatment. The aim of the present review was to provide an update on DNA methylation changes that are potentially involved in BC development and their putative clinical utility in the fields of diagnosis, prognosis and therapy.
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Affiliation(s)
- Maria Teresa Vietri
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Giovanna D'Elia
- Unit of Clinical and Molecular Pathology, AOU, University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Giuditta Benincasa
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Giuseppe Ferraro
- Multidisciplinary Department of Medical, Surgical and Dental Sciences, Plastic Surgery Unit, University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Gemma Caliendo
- Unit of Clinical and Molecular Pathology, AOU, University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Giovanni Francesco Nicoletti
- Multidisciplinary Department of Medical, Surgical and Dental Sciences, Plastic Surgery Unit, University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
| | - Claudio Napoli
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania 'Luigi Vanvitelli', I-80138 Naples, Italy
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9
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Ramadan A, Hashim M, Abouzid A, Swellam M. Clinical impact of PTEN methylation status as a prognostic marker for breast cancer. J Genet Eng Biotechnol 2021; 19:66. [PMID: 33970384 PMCID: PMC8110663 DOI: 10.1186/s43141-021-00169-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/16/2021] [Indexed: 12/15/2022]
Abstract
Background Aberrant DNA methylation of phosphatase and tensin homolog (PTEN) gene has been found in many cancers. The object of this study was to evaluate the clinical impact of PTEN methylation as a prognostic marker in breast cancer. The study includes 153 newly diagnosed females, and they were divided according to their clinical diagnosis into breast cancer patients (n = 112) and females with benign breast lesion (n = 41). A group of healthy individuals (n = 25) were recruited as control individuals. Breast cancer patients were categorized into early stage (0–I, n = 48) and late stage (II–III, n = 64), and graded into low grade (I–II, n = 42) and high grade (III, n = 70). Their pathological types were invasive duct carcinoma (IDC) (n = 66) and duct carcinoma in situ (DCI) (n = 46). Tumor markers (CEA and CA15.3) were detected using ELISA. DNA was taken away from the blood, and the PTEN promoter methylation level was evaluated using the EpiTect Methyl II PCR method. Results The findings revealed the superiority of PTEN methylation status as a good discriminator of the cancer group from the other two groups (benign and control) with its highest AUC and increased sensitivity (96.4%) and specificity (100%) over tumor markers (50% and 84% for CEA and 49.1% and 86.4% for CA15.3), respectively. The frequency of PTEN methylation was 96.4% of breast cancer patients and none of the benign and controls showed PTEN methylation and the means of PTEN methylation (87 ± 0.6) were significantly increased in blood samples of breast cancer group as compared to both benign and control groups (25 ± 0.7 and 12.6 ± 0.3), respectively. Methylation levels of PTEN were higher in the blood of patients with ER-positive than in patients with ER-negative cancers (P = 0.007) and in HER2 positive vs. HER2 negative tumors (P = 0.001). The Kaplan-Meier analysis recognizes PTEN methylation status as a significant forecaster of bad progression-free survival (PFS) and overall survival (OS), after 40 months follow-up. Conclusions PETN methylation could be supposed as one of the epigenetic aspects influencing the breast cancer prognosis that might foretell more aggressive actions and worse results in breast cancer patients.
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Affiliation(s)
- Amal Ramadan
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt. .,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Dokki, Giza, Egypt.
| | - Maha Hashim
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Dokki, Giza, Egypt
| | - Amr Abouzid
- Surgical Oncology Department, Mansoura Oncology Centre, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Menha Swellam
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Dokki, Giza, Egypt
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10
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Luo C, Huang J, Guo Z, Guo J, Zeng X, Li Y, Liu M. Methylated biomarkers for breast cancer identified through public database analysis and plasma target capture sequencing. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:683. [PMID: 33987381 PMCID: PMC8106113 DOI: 10.21037/atm-21-1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background Aberrant methylation is common during the early stage of cancer development. This study was designed to investigate DNA methylation as biomarker for breast cancer. Methods Public database analysis and methylation-specific whole-gene sequencing were conducted to identify methylated biomarkers that would enable early non-invasive diagnosis of breast cancer. Firstly, the data was obtained from the TCGA Database and the Blueprint Epigenome Database. Secondly, methylation-specific whole-gene sequencing was conducted in 10 female patients with early-stage breast cancer and 10 healthy female volunteers from Nanfang Hospital of Southern Medical University between March 2018 and July 2018. Thirdly, the R language was used for data analysis, and KEGG and DAVID online tool was used for annotations. Results We found that methylation levels at 13 cytosine-phosphate-guanine (CpG) sites (cg04066177, cg04281344, cg05995576, cg06221609, cg08642731, cg11388802, cg12665414, cg14557216, cg19404723, cg19457909, cg24570211, cg25818763, and cg26215982) in the malignant tissue DNA were highly comparable to those of circulating cell-free DNA (cfDNA) of breast cancer patients, but were significantly different from those of normal tissue DNA, cfDNA of healthy women, and leukocyte DNA. In addition, three CpG sites (cg04281344, cg24570211, and cg26215982) were confirmed in clinical research, which showed that the sensitivity and specificity of these CpGs as biomarkers for breast cancer were 69.4–83.7% and 85.7–88.6%, respectively. Conclusions New biomarkers were identified and confirmed for breast cancer by comparing the methylation of tumour tissues, leukocytes, and non-plasma DNA.
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Affiliation(s)
- Can Luo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiaheng Huang
- Department of Surgery, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhaoze Guo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jingyun Guo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoqi Zeng
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yimin Li
- General Surgery, Yangjiang Hospital, Qiongzhong, China
| | - Minfeng Liu
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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11
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Wu HJ, Chu PY. Recent Discoveries of Macromolecule- and Cell-Based Biomarkers and Therapeutic Implications in Breast Cancer. Int J Mol Sci 2021; 22:ijms22020636. [PMID: 33435254 PMCID: PMC7827149 DOI: 10.3390/ijms22020636] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/31/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is the most commonly diagnosed cancer type and the leading cause of cancer-related mortality in women worldwide. Breast cancer is fairly heterogeneous and reveals six molecular subtypes: luminal A, luminal B, HER2+, basal-like subtype (ER−, PR−, and HER2−), normal breast-like, and claudin-low. Breast cancer screening and early diagnosis play critical roles in improving therapeutic outcomes and prognosis. Mammography is currently the main commercially available detection method for breast cancer; however, it has numerous limitations. Therefore, reliable noninvasive diagnostic and prognostic biomarkers are required. Biomarkers used in cancer range from macromolecules, such as DNA, RNA, and proteins, to whole cells. Biomarkers for cancer risk, diagnosis, proliferation, metastasis, drug resistance, and prognosis have been identified in breast cancer. In addition, there is currently a greater demand for personalized or precise treatments; moreover, the identification of novel biomarkers to further the development of new drugs is urgently needed. In this review, we summarize and focus on the recent discoveries of promising macromolecules and cell-based biomarkers for the diagnosis and prognosis of breast cancer and provide implications for therapeutic strategies.
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Affiliation(s)
- Hsing-Ju Wu
- Department of Biology, National Changhua University of Education, Changhua 500, Taiwan;
- Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan
- Department of Medical Research, Chang Bing Show Chwan Memorial Hospital, Lukang Town, Changhua County 505, Taiwan
| | - Pei-Yi Chu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 231, Taiwan
- Department of Pathology, Show Chwan Memorial Hospital, No. 542, Sec. 1 Chung-Shan Rd., Changhua 500, Taiwan
- Department of Health Food, Chung Chou University of Science and Technology, Changhua 510, Taiwan
- National Institute of Cancer Research, National Health Research Institutes, Tainan 704, Taiwan
- Correspondence: ; Tel.: +886-975-611-855; Fax: +886-4-7227-116
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Ahmadi M, Mohammadi Z, Azad M, Foroughi F, Khojastehpour S, Gheibi N, Samiee-Rad F, Maali A. Evaluation of expression level and methylation profile of CXX1 gene in breast cancer tissue blocks. J Cancer Res Ther 2021; 17:1328-1334. [DOI: 10.4103/jcrt.jcrt_27_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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13
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Sher G, Salman NA, Khan AQ, Prabhu KS, Raza A, Kulinski M, Dermime S, Haris M, Junejo K, Uddin S. Epigenetic and breast cancer therapy: Promising diagnostic and therapeutic applications. Semin Cancer Biol 2020; 83:152-165. [PMID: 32858230 DOI: 10.1016/j.semcancer.2020.08.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 12/24/2022]
Abstract
The global burden of breast cancer (BC) is increasing significantly. This trend is caused by several factors such as late diagnosis, limited treatment options for certain BC subtypes, drug resistance which all lead to poor clinical outcomes. Recent research has reported the role of epigenetic alterations in the mechanism of BC pathogenesis and its hallmarks include drug resistance and stemness features. The understanding of these modifications and their significance in the management of BC carcinogenesis is challenging and requires further attention. Nevertheless, it promises to provide novel insight needed for utilizing these alterations as potential diagnostic, prognostic markers, predict treatment efficacy, as well as therapeutic agents. This highlights the importance of continuing research development to further advance the existing knowledge on epigenetics and BC carcinogenesis to overcome the current challenges. Hence, this review aims to shed light and discuss the current state of epigenetics research in the diagnosis and management of BC.
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Affiliation(s)
- Gulab Sher
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Nadia Aziz Salman
- Kingston University London, School of Life Science, Pharmacy and Chemistry, SEC Faculty, Kingston, upon Thames, London, KT1 2EE, UK
| | - Abdul Q Khan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Kirti S Prabhu
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Afsheen Raza
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Michal Kulinski
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Said Dermime
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Mohammad Haris
- Functional and Molecular Imaging Laboratory, Sidra Medicine, P.O. Box 26999, Qatar; Laboratory Animal Research Center, Qatar University, Doha, P.O. Box 2713, Qatar
| | - Kulsoom Junejo
- General Surgery Department, Hamad General Hospital, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, P.O. Box 3050, Qatar.
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Constâncio V, Nunes SP, Henrique R, Jerónimo C. DNA Methylation-Based Testing in Liquid Biopsies as Detection and Prognostic Biomarkers for the Four Major Cancer Types. Cells 2020; 9:E624. [PMID: 32150897 PMCID: PMC7140532 DOI: 10.3390/cells9030624] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 12/11/2022] Open
Abstract
Lung, breast, colorectal, and prostate cancers are the most incident worldwide. Optimal population-based cancer screening methods remain an unmet need, since cancer detection at early stages increases the prospects of successful and curative treatment, leading to a lower incidence of recurrences. Moreover, the current parameters for cancer patients' stratification have been associated with divergent outcomes. Therefore, new biomarkers that could aid in cancer detection and prognosis, preferably detected by minimally invasive methods are of major importance. Aberrant DNA methylation is an early event in cancer development and may be detected in circulating cell-free DNA (ccfDNA), constituting a valuable cancer biomarker. Furthermore, DNA methylation is a stable alteration that can be easily and rapidly quantified by methylation-specific PCR methods. Thus, the main goal of this review is to provide an overview of the most important studies that report methylation biomarkers for the detection and prognosis of the four major cancers after a critical analysis of the available literature. DNA methylation-based biomarkers show promise for cancer detection and management, with some studies describing a "PanCancer" detection approach for the simultaneous detection of several cancer types. Nonetheless, DNA methylation biomarkers still lack large-scale validation, precluding implementation in clinical practice.
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Affiliation(s)
- Vera Constâncio
- Cancer Biology & Epigenetics Group—Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal; (V.C.); (S.P.N.); (R.H.)
- Master in Oncology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), 4050-313 Porto, Portugal
| | - Sandra P. Nunes
- Cancer Biology & Epigenetics Group—Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal; (V.C.); (S.P.N.); (R.H.)
| | - Rui Henrique
- Cancer Biology & Epigenetics Group—Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal; (V.C.); (S.P.N.); (R.H.)
- Department of Pathology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar–University of Porto (ICBAS-UP), 4050-313 Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group—Research Center, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal; (V.C.); (S.P.N.); (R.H.)
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar–University of Porto (ICBAS-UP), 4050-313 Porto, Portugal
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Nassar FJ, Chamandi G, Tfaily MA, Zgheib NK, Nasr R. Peripheral Blood-Based Biopsy for Breast Cancer Risk Prediction and Early Detection. Front Med (Lausanne) 2020; 7:28. [PMID: 32118013 PMCID: PMC7026666 DOI: 10.3389/fmed.2020.00028] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 01/20/2020] [Indexed: 12/17/2022] Open
Abstract
Among women, breast cancer (BC) is not only the most common cancer worldwide but also the leading cause of cancer death. Only 5–10% of breast cancer cases are attributed to inherited mutations (BRCA1, BRCA2, and other breast cancer susceptibility genes). Breast cancer incidence has been rising particularly in young women who are not eligible for mammography, and it has been acting as a burden especially in developing countries that lack screening and awareness programs. For this reason, research has shifted to use minimally invasive liquid biopsies especially blood-based biomarkers with potential value for breast cancer risk prediction and early detection. This mini-review will tackle the different blood-based biomarkers focusing mainly on circulating miRNA, circulating proteins, cell-free nucleic acids, methylation patterns, and exosomes. It also introduces the potential opportunities for the clinical use of these blood-based biomarkers for breast cancer risk prediction.
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Affiliation(s)
- Farah J Nassar
- Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ghada Chamandi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Mohamad Ali Tfaily
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Nathalie Khoueiry Zgheib
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Rihab Nasr
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Costantini L, Molinari R, Farinon B, Merendino N. Retinoic Acids in the Treatment of Most Lethal Solid Cancers. J Clin Med 2020; 9:E360. [PMID: 32012980 PMCID: PMC7073976 DOI: 10.3390/jcm9020360] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/14/2022] Open
Abstract
Although the use of oral administration of pharmacological all-trans retinoic acid (ATRA) concentration in acute promyelocytic leukaemia (APL) patients was approved for over 20 years and used as standard therapy still to date, the same use in solid cancers is still controversial. In the present review the literature about the top five lethal solid cancers (lung, stomach, liver, breast, and colon cancer), as defined by The Global Cancer Observatory of World Health Organization, and retinoic acids (ATRA, 9-cis retinoic acid, and 13-cis retinoic acid, RA) was compared. The action of retinoic acids in inhibiting the cell proliferation was found in several cell pathways and compartments: from membrane and cytoplasmic signaling, to metabolic enzymes, to gene expression. However, in parallel in the most aggressive phenotypes several escape routes have evolved conferring retinoic acids-resistance. The comparison between different solid cancer types pointed out that for some cancer types several information are still lacking. Moreover, even though some pathways and escape routes are the same between the cancer types, sometimes they can differently respond to retinoic acid therapy, so that generalization cannot be made. Further studies on molecular pathways are needed to perform combinatorial trials that allow overcoming retinoic acids resistance.
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Affiliation(s)
- Lara Costantini
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell’Università snc, 01100 Viterbo, Italy
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Loke SY, Munusamy P, Koh GL, Chan CHT, Madhukumar P, Thung JL, Tan KTB, Ong KW, Yong WS, Sim Y, Oey CL, Lim SZ, Chan MYP, Ho TSJ, Khoo BKJ, Wong SLJ, Thng CH, Chong BK, Tan EY, Tan VKM, Lee ASG. A Circulating miRNA Signature for Stratification of Breast Lesions among Women with Abnormal Screening Mammograms. Cancers (Basel) 2019; 11:cancers11121872. [PMID: 31769433 PMCID: PMC6966622 DOI: 10.3390/cancers11121872] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 12/13/2022] Open
Abstract
Although mammography is the gold standard for breast cancer screening, the high rates of false-positive mammograms remain a concern. Thus, there is an unmet clinical need for a non-invasive and reliable test to differentiate between malignant and benign breast lesions in order to avoid subjecting patients with abnormal mammograms to unnecessary follow-up diagnostic procedures. Serum samples from 116 malignant breast lesions and 64 benign breast lesions were comprehensively profiled for 2,083 microRNAs (miRNAs) using next-generation sequencing. Of the 180 samples profiled, three outliers were removed based on the principal component analysis (PCA), and the remaining samples were divided into training (n = 125) and test (n = 52) sets at a 70:30 ratio for further analysis. In the training set, significantly differentially expressed miRNAs (adjusted p < 0.01) were identified after correcting for multiple testing using a false discovery rate. Subsequently, a predictive classification model using an eight-miRNA signature and a Bayesian logistic regression algorithm was developed. Based on the receiver operating characteristic (ROC) curve analysis in the test set, the model could achieve an area under the curve (AUC) of 0.9542. Together, this study demonstrates the potential use of circulating miRNAs as an adjunct test to stratify breast lesions in patients with abnormal screening mammograms.
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Affiliation(s)
- Sau Yeen Loke
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; (S.Y.L.); (P.M.); (G.L.K.); (C.H.T.C.)
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
| | - Prabhakaran Munusamy
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; (S.Y.L.); (P.M.); (G.L.K.); (C.H.T.C.)
| | - Geok Ling Koh
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; (S.Y.L.); (P.M.); (G.L.K.); (C.H.T.C.)
| | - Claire Hian Tzer Chan
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; (S.Y.L.); (P.M.); (G.L.K.); (C.H.T.C.)
| | - Preetha Madhukumar
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- Department of General Surgery, Singapore General Hospital, Singapore 169608, Singapore
| | - Jee Liang Thung
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Kiat Tee Benita Tan
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- Department of General Surgery, Singapore General Hospital, Singapore 169608, Singapore
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
- Department of General Surgery, Sengkang General Hospital, Singapore 544886, Singapore
| | - Kong Wee Ong
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Wei Sean Yong
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- Department of General Surgery, Singapore General Hospital, Singapore 169608, Singapore
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Yirong Sim
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Chung Lie Oey
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Sue Zann Lim
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- Department of General Surgery, Singapore General Hospital, Singapore 169608, Singapore
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Mun Yew Patrick Chan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (M.Y.P.C.); (E.Y.T.)
| | - Teng Swan Juliana Ho
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Oncologic Imaging, National Cancer Centre, Singapore 169610, Singapore;
| | - Boon Kheng James Khoo
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Oncologic Imaging, National Cancer Centre, Singapore 169610, Singapore;
| | - Su Lin Jill Wong
- Division of Oncologic Imaging, National Cancer Centre, Singapore 169610, Singapore;
| | - Choon Hua Thng
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Oncologic Imaging, National Cancer Centre, Singapore 169610, Singapore;
| | - Bee Kiang Chong
- Department of Diagnostic Radiology, Tan Tock Seng Hospital, Singapore 308433, Singapore;
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (M.Y.P.C.); (E.Y.T.)
| | - Veronique Kiak-Mien Tan
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Division of Surgical Oncology, National Cancer Centre, Singapore 169610, Singapore; (J.L.T.); (K.W.O.); (C.L.O.)
- Department of General Surgery, Singapore General Hospital, Singapore 169608, Singapore
- SingHealth Duke-NUS Breast Centre, Singapore 169610, Singapore
| | - Ann Siew Gek Lee
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore 169610, Singapore; (S.Y.L.); (P.M.); (G.L.K.); (C.H.T.C.)
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore 169857, Singapore; (P.M.); (K.T.B.T.); (W.S.Y.); (Y.S.); (S.Z.L.); (T.S.J.H.); (B.K.J.K.); (C.H.T.); (V.K.-M.T.)
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
- Correspondence: ; Tel.: +65-6436-8313
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Guo M, Peng Y, Gao A, Du C, Herman JG. Epigenetic heterogeneity in cancer. Biomark Res 2019; 7:23. [PMID: 31695915 PMCID: PMC6824025 DOI: 10.1186/s40364-019-0174-y] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/10/2019] [Indexed: 12/15/2022] Open
Abstract
Phenotypic and functional heterogeneity is one of the hallmarks of human cancers. Tumor genotype variations among tumors within different patients are known as interpatient heterogeneity, and variability among multiple tumors of the same type arising in the same patient is referred to as intra-patient heterogeneity. Subpopulations of cancer cells with distinct phenotypic and molecular features within a tumor are called intratumor heterogeneity (ITH). Since Nowell proposed the clonal evolution of tumor cell populations in 1976, tumor heterogeneity, especially ITH, was actively studied. Research has focused on the genetic basis of cancer, particularly mutational activation of oncogenes or inactivation of tumor-suppressor genes (TSGs). The phenomenon of ITH is commonly explained by Darwinian-like clonal evolution of a single tumor. Despite the monoclonal origin of most cancers, new clones arise during tumor progression due to the continuous acquisition of mutations. It is clear that disruption of the "epigenetic machinery" plays an important role in cancer development. Aberrant epigenetic changes occur more frequently than gene mutations in human cancers. The epigenome is at the intersection of the environment and genome. Epigenetic dysregulation occurs in the earliest stage of cancer. The current trend of epigenetic therapy is to use epigenetic drugs to reverse and/or delay future resistance to cancer therapies. A majority of cancer therapies fail to achieve durable responses, which is often attributed to ITH. Epigenetic therapy may reverse drug resistance in heterogeneous cancer. Complete understanding of genetic and epigenetic heterogeneity may assist in designing combinations of targeted therapies based on molecular information extracted from individual tumors.
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Affiliation(s)
- Mingzhou Guo
- 1Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China.,State Key Laboratory of Esophageal Cancer Prevention and Treatment, 40 Daxue Road, Zhengzhou, Henan 450052 China
| | - Yaojun Peng
- 1Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China
| | - Aiai Gao
- 1Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China
| | - Chen Du
- 1Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China
| | - James G Herman
- 3The Hillman Cancer Center, University of Pittsburgh Cancer Institute, 5117 Centre Ave., Pittsburgh, PA 15213 USA
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Nie J, Jiang HC, Zhou YC, Jiang B, He WJ, Wang YF, Dong J. MiR-125b regulates the proliferation and metastasis of triple negative breast cancer cells via the Wnt/β-catenin pathway and EMT. Biosci Biotechnol Biochem 2019; 83:1062-1071. [PMID: 30950326 DOI: 10.1080/09168451.2019.1584521] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIM MiR-125b plays an important role in breast cancer. The current study was to explore the expression and function of miR-125b in triple negative breast cancer cells. MATERIALS AND METHODS The expression of miR-125b in human TNBC samples and cell lines were examined by qRT-PCR. MTT, scratch assays and transwell assays were utilized to observe the proliferation, migration and invasion ability. MiR-125b's target gene and downstream signaling pathways were investigated by Luciferase Reporter Assays, qRT-PCR, immunofluorescence assays and western bolt. RESULTS MiR-125b was highly expressed in human TNBC tissues and cell lines. Inhibiting miR-125b expression suppressed the proliferation, cell migration and invasion. The three-prime untranslated region (3´-UTR) of adenomatous polyposis coli (APC) mRNA contains miR-125b binding sites, and inhibiting miR-125b expression suppressed the activity of the intracellular Wnt/β-catenin pathways and EMT. CONCLUSION Inhibiting miR-125b regulates the Wnt/β-catenin pathway and EMT to suppress the proliferation and migration of MDA-MB-468 TNBC cells.
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Affiliation(s)
- Jun Nie
- a Department of Cadre Medical Branch , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Hong-Chao Jiang
- b Department of Oncology , The Affiliated Children's Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Yong-Chun Zhou
- a Department of Cadre Medical Branch , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Bo Jiang
- a Department of Cadre Medical Branch , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Wen-Jie He
- a Department of Cadre Medical Branch , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Yu-Feng Wang
- a Department of Cadre Medical Branch , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
| | - Jian Dong
- c Department of Oncology , The Third Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , China
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Cui X, Cao L, Huang Y, Bai D, Huang S, Lin M, Yang Q, Lu TJ, Xu F, Li F. In vitro diagnosis of DNA methylation biomarkers with digital PCR in breast tumors. Analyst 2019; 143:3011-3020. [PMID: 29693662 DOI: 10.1039/c8an00205c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Liquid biopsy of cancers using DNA methylation biomarkers has received significant interest, where the quantification of multiple biomarkers is generally needed for improving the sensitivity and specificity of cancer diagnosis. However, the inefficiency of the traditional quantitative polymerase chain reaction (qPCR)-based MethyLight assay for detecting the extremely low concentration of methylated DNA fragments in body fluids limits its clinical applications. Here, we developed an ultrasensitive microwell chip digital polymerase chain reaction (dPCR)-based MethyLight assay. Using the synthesized samples, the developed MethyLight assay can achieve 103-104-fold lower limit of detection and 1-16-fold lower limit of quantification than the traditional MethyLight assay. Four hypermethylated alleles (RARβ2, BRCA1, GSTP1 and RASSF1A) related to breast cancer in twenty-three clinical samples were tested using the microwell chip dPCR-based MethyLight assay. The results showed that the dPCR assay achieves ∼2 times enhancement in the cancer detection rate over the traditional quantitative PCR. Furthermore, the dPCR can detect the healthy and benign samples, which are undetectable using the traditional MethyLight assay. In multiple gene analysis, we achieved the highest detection rate of 93.3% (in the "OR" format of RARβ2 and GSTP1). Lastly, the estimated cut-off values in the dPCR assay were: <1, ∼1 to 100 and >100 (copies per μL) referring to the healthy, benign and malignant breast cancers, respectively. Therefore, the developed microwell chip dPCR-based MethyLight assay could provide a powerful tool for cancer biopsy diagnosis and disease monitoring.
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Affiliation(s)
- Xingye Cui
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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Yari K, Rahimi Z. Promoter Methylation Status of the Retinoic Acid Receptor-Beta 2 Gene in Breast Cancer Patients: A Case Control Study and Systematic Review. Breast Care (Basel) 2019; 14:117-123. [PMID: 31798384 DOI: 10.1159/000489874] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background We aimed to determine the promoter methylation status of the retinoic acid receptor-beta 2 (RARβ2) gene among breast cancer patients and to review relevant studies in this field in various populations. Methods We analyzed 400 samples which comprised blood specimens from 102 breast cancer patients, 102 first-degree female relatives of patients, 100 cancer-free females, 48 breast cancer tissues, and 48 adjacent normal breast tissues from the same patients. The RARβ2 methylation status was determined using methylation-specific polymerase chain reaction (MSP) and DNA sequencing methods. Results The presence of combined partially methylated (MU) and fully methylated (MM) forms of the RARβ2 gene (MU+MM) in the blood of patients was associated with susceptibility to breast cancer (odds ratio = 4.7, p = 0.05). A significantly higher frequency of the MM genotype was observed in cancer tissue (10.4%) compared to matched adjacent normal breast tissue (0%) (p = 0.02). Conclusion We found a higher frequency of RARβ2 gene methylation in the blood and cancer tissues of patients compared to the blood of controls and adjacent normal breast tissues. The survey of studies on various populations demonstrated a higher RARβ2 methylation frequency in breast cancer patients compared to normal individuals, and many reports suggest a significant association between hypermethylation of the gene and susceptibility to breast cancer.
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Affiliation(s)
| | - Zohreh Rahimi
- Medical Biology Research Center.,Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Zanconato F, Battilana G, Forcato M, Filippi L, Azzolin L, Manfrin A, Quaranta E, Di Biagio D, Sigismondo G, Guzzardo V, Lejeune P, Haendler B, Krijgsveld J, Fassan M, Bicciato S, Cordenonsi M, Piccolo S. Transcriptional addiction in cancer cells is mediated by YAP/TAZ through BRD4. Nat Med 2018; 24:1599-1610. [PMID: 30224758 PMCID: PMC6181206 DOI: 10.1038/s41591-018-0158-8] [Citation(s) in RCA: 219] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 07/17/2018] [Indexed: 12/12/2022]
Abstract
Cancer cells rely on dysregulated gene expression. This establishes specific transcriptional addictions that may be therapeutically exploited. Yet, the mechanisms that are ultimately responsible for these addictions are poorly understood. Here, we investigated the transcriptional dependencies of transformed cells to the transcription factors YAP and TAZ. YAP/TAZ physically engage the general coactivator bromodomain-containing protein 4 (BRD4), dictating the genome-wide association of BRD4 to chromatin. YAP/TAZ flag a large set of enhancers with super-enhancer-like functional properties. YAP/TAZ-bound enhancers mediate the recruitment of BRD4 and RNA polymerase II at YAP/TAZ-regulated promoters, boosting the expression of a host of growth-regulating genes. Treatment with small-molecule inhibitors of BRD4 blunts YAP/TAZ pro-tumorigenic activity in several cell or tissue contexts, causes the regression of pre-established, YAP/TAZ-addicted neoplastic lesions and reverts drug resistance. This work sheds light on essential mediators, mechanisms and genome-wide regulatory elements that are responsible for transcriptional addiction in cancer and lays the groundwork for a rational use of BET inhibitors according to YAP/TAZ biology.
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Affiliation(s)
- Francesca Zanconato
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Giusy Battilana
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Mattia Forcato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Letizia Filippi
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Luca Azzolin
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Andrea Manfrin
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Erika Quaranta
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Daniele Di Biagio
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy
| | - Gianluca Sigismondo
- German Cancer Research Center (DKFZ) and Heidelberg University, Heidelberg, Germany
| | - Vincenza Guzzardo
- Department of Medicine, Surgical Pathology and Cytopathology Unit, University of Padua School of Medicine, Padua, Italy
| | | | | | - Jeroen Krijgsveld
- German Cancer Research Center (DKFZ) and Heidelberg University, Heidelberg, Germany
| | - Matteo Fassan
- Department of Medicine, Surgical Pathology and Cytopathology Unit, University of Padua School of Medicine, Padua, Italy
| | - Silvio Bicciato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Stefano Piccolo
- Department of Molecular Medicine, University of Padua School of Medicine, Padua, Italy.
- IFOM, The FIRC Institute of Molecular Oncology, Milan, Italy.
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Begam N, Jamil K, Raju GS. Promoter epigenetics of APC gene and its implication in sporadic breast cancer patients from South Indian population. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Llinàs-Arias P, Esteller M. Epigenetic inactivation of tumour suppressor coding and non-coding genes in human cancer: an update. Open Biol 2018; 7:rsob.170152. [PMID: 28931650 PMCID: PMC5627056 DOI: 10.1098/rsob.170152] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 08/02/2017] [Indexed: 12/13/2022] Open
Abstract
Cancer cells undergo many different alterations during their transformation, including genetic and epigenetic events. The controlled division of healthy cells can be impaired through the downregulation of tumour suppressor genes. Here, we provide an update of the mechanisms in which epigenetically altered coding and non-coding tumour suppressor genes are implicated. We will highlight the importance of epigenetics in the different molecular pathways that lead to enhanced and unlimited capacity of division, genomic instability, metabolic shift, acquisition of mesenchymal features that lead to metastasis, and tumour plasticity. We will briefly describe these pathways, focusing especially on genes whose epigenetic inactivation through DNA methylation has been recently described, as well as on those that are well established as being epigenetically silenced in cancer. A brief perspective of current clinical therapeutic approaches that can revert epigenetic inactivation of non-coding tumour suppressor genes will also be given.
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Affiliation(s)
- Pere Llinàs-Arias
- Cancer Epigenetics Group, Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain
| | - Manel Esteller
- Cancer Epigenetics Group, Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain .,Physiological Sciences Department, School of Medicine and Health Sciences, University of Barcelona (UB), Carrer de la Feixa Llarga, s/n, 08908 L'Hospitalet, Barcelona, Catalonia, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain
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26
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Loke SY, Lee ASG. The future of blood-based biomarkers for the early detection of breast cancer. Eur J Cancer 2018; 92:54-68. [DOI: 10.1016/j.ejca.2017.12.025] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/15/2017] [Accepted: 12/21/2017] [Indexed: 02/06/2023]
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27
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He K, Zhang L, Long X. Quantitative assessment of the association between APC promoter methylation and breast cancer. Oncotarget 2018; 7:37920-37930. [PMID: 27191268 PMCID: PMC5122360 DOI: 10.18632/oncotarget.9354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/26/2016] [Indexed: 12/15/2022] Open
Abstract
Adenomatous polyposis coli (APC) is an important tumor suppressor gene in breast cancer. However, there were inconsistent conclusions in the association between APC promoter methylation and breast cancer. Hence, we conducted a meta-analysis to quantitatively assess the clinicopathological significance and diagnosis role of APC methylation in breast cancer. In total, 3172 samples from 29 studies were performed in this study. The odds ratio (OR) of APC methylation was 5.92 (95% CI = 3.16–11.07) in breast cancer cases compared to controls,. The APC promoter methylation was associated with cancer stage (OR = 0.47, 95% CI = 0.28–0.80, P = 0.006), lymph node metastases (OR = 0.55, 95% CI = 0.36–0.84, P = 0.005) and ER status (OR = 1.34, 95% CI = 1.03–1.73, P = 0.003) in breast cancer. Furthermore, the sensitivity and specificity for all included studies were 0.444 (95% CI: 0.321–0.575, P < 0.0001) and 0.976 (95% CI: 0.916–0.993, P < 0.0001), respectively. These results suggested that APC promoter methylation was associated with breast cancer risk, and it could be a valuable biomarker for diagnosis, treatment and prognosis of breast cancer.
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Affiliation(s)
- Keli He
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Department of Clinical Laboratory, The First People's Hospital of Changde City, Changde, 415003, China
| | - Li Zhang
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xinghua Long
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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28
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Debouki-Joudi S, Trifa F, Khabir A, Sellami-Boudawara T, Frikha M, Daoud J, Mokdad-Gargouri R. CpG methylation of APC promoter 1A in sporadic and familial breast cancer patients. Cancer Biomark 2017; 18:133-141. [DOI: 10.3233/cbm-160005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Saoussen Debouki-Joudi
- Laboratory of Molecular Biotechnology of Eukaryotes, Department of Cancer Genetics, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | - Fatma Trifa
- Laboratory of Molecular Biotechnology of Eukaryotes, Department of Cancer Genetics, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | | | | | - Mounir Frikha
- Centre Hospitalo-Universitaire Habib Bourguiba, Sfax 3000, Tunisia
| | - Jamel Daoud
- Centre Hospitalo-Universitaire Habib Bourguiba, Sfax 3000, Tunisia
| | - Raja Mokdad-Gargouri
- Laboratory of Molecular Biotechnology of Eukaryotes, Department of Cancer Genetics, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
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29
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Tang Q, Cheng J, Cao X, Surowy H, Burwinkel B. Blood-based DNA methylation as biomarker for breast cancer: a systematic review. Clin Epigenetics 2016; 8:115. [PMID: 27895805 PMCID: PMC5109688 DOI: 10.1186/s13148-016-0282-6] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/26/2016] [Indexed: 12/19/2022] Open
Abstract
Multiple studies have investigated global DNA methylation profiles and gene-specific DNA methylation in blood-based DNA to develop powerful screening markers for cancer. This systematic review summarizes the current evidence on methylation studies that investigated methylation level of blood-derived DNA of breast cancer (BC) patients in comparison to healthy controls by conducting a systematic literature review in PubMed and Web of Science. Essential results, such as methylation levels of BC cases and healthy controls, p values, and odds ratios, were extracted from these studies by two investigators independently. Overall, 45 publications met the inclusion criteria for this review. DNA from whole blood, as well as cell-free DNA (cfDNA) from serum or plasma, was used in these studies. The most common method used for measuring global DNA methylation was the investigation of repetitive elements as surrogates and the application of array-based genome-wide methylation analysis. For measuring gene-specific methylation level, methylation-specific PCR and pyrosequencing were the most frequently used methods. Epigenome-wide blood DNA hypomethylation in BC patients were reported in several studies; however, the evidence is still not conclusive. The most frequently investigated gene in whole blood was BRCA1, which was found more frequently methylated in patients compared to controls. RASSF1A was the most widely investigated gene in cfDNA of serum or plasma, which was also found more frequently methylated in patients compared to controls. Several of the eligible studies reported the associations of global hypomethylation and increased BC risk. Studies investigated associations between gene-specific methylation and BC risk, while got heterogeneous results. But two studies reported that hypermethylation of ATM gene was associated with increased BC risk, which suggest the potential use of this gene for BC risk stratification. Overall, our review suggests the possibility of using blood-based DNA methylation marker as promising marker for BC risk stratification, as several studies found associations between certain methylation level in blood and BC risk. However, so far, the evidence is still quite limited. Optimal markers are yet to be developed and promising results needed to be validated in prospective study cohorts and tested in large screening populations.
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Affiliation(s)
- Qiuqiong Tang
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, Ruprecht-Karls-Universitaet Heidelberg, Heidelberg, Germany ; Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jie Cheng
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, Ruprecht-Karls-Universitaet Heidelberg, Heidelberg, Germany ; Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Xue Cao
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, Ruprecht-Karls-Universitaet Heidelberg, Heidelberg, Germany ; Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Harald Surowy
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, Ruprecht-Karls-Universitaet Heidelberg, Heidelberg, Germany ; Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Barbara Burwinkel
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, Ruprecht-Karls-Universitaet Heidelberg, Heidelberg, Germany ; Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg, Germany
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30
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Zhou D, Tang W, Wang W, Pan X, An HX, Zhang Y. Association between aberrant APC promoter methylation and breast cancer pathogenesis: a meta-analysis of 35 observational studies. PeerJ 2016; 4:e2203. [PMID: 27478702 PMCID: PMC4950556 DOI: 10.7717/peerj.2203] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 06/10/2016] [Indexed: 12/01/2022] Open
Abstract
Background. Adenomatous polyposis coli (APC) is widely known as an antagonist of the Wnt signaling pathway via the inactivation of β-catenin. An increasing number of studies have reported that APC methylation contributes to the predisposition to breast cancer (BC). However, recent studies have yielded conflicting results. Methods. Herein, we systematically carried out a meta-analysis to assess the correlation between APC methylation and BC risk. Based on searches of the Cochrane Library, PubMed, Web of Science and Embase databases, the odds ratio (OR) with 95% confidence interval (CI) values were pooled and summarized. Results. A total of 31 articles involving 35 observational studies with 2,483 cases and 1,218 controls met the inclusion criteria. The results demonstrated that the frequency of APC methylation was significantly higher in BC cases than controls under a random effect model (OR = 8.92, 95% CI [5.12–15.52]). Subgroup analysis further confirmed the reliable results, regardless of the sample types detected, methylation detection methods applied and different regions included. Interestingly, our results also showed that the frequency of APC methylation was significantly lower in early-stage BC patients than late-stage ones (OR = 0.62, 95% CI [0.42–0.93]). Conclusion. APC methylation might play an indispensable role in the pathogenesis of BC and could be regarded as a potential biomarker for the diagnosis of BC.
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Affiliation(s)
- Dan Zhou
- Department of Translational Medicine, Xiamen Institute of Rare Earth Materials, Xiamen, China; Department of Translational Medicine, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Fuzhou, China
| | - Weiwei Tang
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Wenyi Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Xiaoyan Pan
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Han-Xiang An
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Yun Zhang
- Department of Translational Medicine, Xiamen Institute of Rare Earth Materials, Xiamen, China; Department of Translational Medicine, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Fuzhou, China
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31
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Swellam M, El-Khazragy N. Clinical impact of circulating microRNAs as blood-based marker in childhood acute lymphoblastic leukemia. Tumour Biol 2016; 37:10571-6. [PMID: 26857279 DOI: 10.1007/s13277-016-4948-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 01/29/2016] [Indexed: 01/03/2023] Open
Abstract
Aberrant microRNA (miRNA) expression participates in childhood acute lymphoblastic leukemia (ALL). This study aimed to investigate the expression of miRNA-100, miRNA-196a, and miRNA-146a among childhood ALL and study their correlation with other hematological parameters and different phenotypes. Peripheral blood mononuclear cells (PMNCs) were obtained from 85 childhood ALL and 25 healthy children for the detection of miRNA expression using quantitative real-time PCR. Significant higher median levels were reported for ALL compared to control children. The diagnostic efficacy for miRNA-146a was superior as both sensitivity and specificity were absolute. A significant correlation was observed between higher expression of miRNA-100 and lower platelet and lymphocyte counts; high expression of miRNA-146a showed significant correlation with low total leukocyte count (TLC) and lymphocyte counts. Significant relation was reported between studied miRNAs and different phenotyping. miRNA-100, miRNA-196a, and miRNA-146a have significant role in childhood ALL leukemogenesis, and they may be useful as biological diagnostic molecular markers.
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Affiliation(s)
- Menha Swellam
- Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, 12622, Dokki, Egypt.
| | - Nashwa El-Khazragy
- Department of Clinical Pathology, Oncology Diagnostic Unit, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Fang C, Jian ZY, Shen XF, Wei XM, Yu GZ, Zeng XT. Promoter Methylation of the Retinoic Acid Receptor Beta2 (RARβ2) Is Associated with Increased Risk of Breast Cancer: A PRISMA Compliant Meta-Analysis. PLoS One 2015; 10:e0140329. [PMID: 26451736 PMCID: PMC4599915 DOI: 10.1371/journal.pone.0140329] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 09/24/2015] [Indexed: 12/25/2022] Open
Abstract
Background Epigenetic studies demonstrate that an association may exist between methylation of the retinoic acid receptor beta2 (RARβ2) gene promoter and breast cancer onset risk, tumor stage, and histological grade, however the results of these studies are not consistent. Hence, we performed this meta-analysis to ascertain a more comprehensive and accurate association. Materials and Methods Relevant studies were retrieved from the PubMed, Embase and Chinese National Knowledge Infrastructure databases up to February 28, 2015. After two independent reviewers screened the studies and extracted the necessary data, meta-analysis was performed using Review Manager 5.2 software. Results Nineteen eligible articles, including 20 studies, were included in our analysis. Compared to non-cancerous controls, the frequency of RARβ2 methylation was 7.27 times higher in patients with breast cancer (odds ratio (OR) = 7.27, 95% confidence interval (CI) = 3.01–17.52). Compared to late-stage RARβ2 methylated patients, the pooled OR of early-stage ones was 0.81 (OR = 0.81, 95% CI = 0.55–1.17). The OR of low-grade RARβ2 methylated patients was 0.96 (OR = 0.96, 95% CI = 0.74–1.25) compared to high-grade RARβ2 methylated patients. Conclusion RARβ2 methylation is significantly increased in breast cancer samples when compared to non-cancerous controls. RARβ2 could serve as a potential epigenetic marker for breast cancer detection and management.
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Affiliation(s)
- Cheng Fang
- Center for Evidence-Based Medicine and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhi-Yuan Jian
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xian-Feng Shen
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xue-Mei Wei
- Department of Nursing, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, P.R. China
| | - Guo-Zheng Yu
- Center for Evidence-Based Medicine and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xian-Tao Zeng
- Center for Evidence-Based Medicine and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
- * E-mail:
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