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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:cells9030624. [PMID: 32150897 PMCID: PMC7140532 DOI: 10.3390/cells9030624] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [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
- Correspondence: or ; Tel.: +351-225084000; Fax: + 351-225084047
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S SK, Swamy SN, Premalatha CS, Pallavi VR, Gawari R. Aberrant Promoter Hypermethylation of RASSF1a and BRCA1 in Circulating Cell-Free Tumor DNA Serves as a Biomarker of Ovarian Carcinoma. Asian Pac J Cancer Prev 2019; 20:3001-3005. [PMID: 31653147 PMCID: PMC6982682 DOI: 10.31557/apjcp.2019.20.10.3001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Indexed: 12/04/2022] Open
Abstract
Objective: Ovarian cancer is one of the leading causes of cancer deaths in women. Ovarian cancer is diagnosed at the late stages and generally relapses within 12-14 months of cytoreductive surgery. This is attributed to lack of precise molecular detection methodologies to detect and track the disease. Epigenetic alteration such as aberrant promoter hypermethylation is an important early event that occurs during cancer development and progression. This study focuses on development of a minimally invasive methylation marker that could be used for detection and prognosis of ovarian cancer patients. Methods: Aberrant promoter hypermethylation of RASSF1a and BRCA1 was assessed in circulating DNA of 72 EOC patients using methylation-specific PCR. The findings were correlated with various clinicopathological parameters. Statistical analysis was done using the Fisher exact test and chi-square test. Results: The aberrant methylation patterns of RASSF1a and BRCA1 was identified to be present in the cancerous samples. A total of 31.9 % and 56.9% methylation was observed for RASSF1a and BRCA1 respectively. A striking 50% methylation of BRCA1 was identified in the benign sample cohort, which marks the significance of assessing the hypermethylation pattern to detect cancer at its early stages. Methylation of the two tumor suppressor genes was evident across various stages and grades of ovarian tumors suggesting that this could also help as a prognostic marker. Conclusion: The results of the current study hold significance since the hypermethylation patterns can be identified in the cell-free circulating tumor DNA from a small volume of blood plasma and is a simple and minimally-invasive method. Assessment of hypermethylation patterns of a panel of TSG along with the existing screening markers could aid in better diagnosis and management of the disease. It could also aid in designing specifically tailored treatment strategies to fight the disease.
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Affiliation(s)
- Sandeep Kumar S
- Department of Biochemistry, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
| | - Shalini N Swamy
- Department of Biochemistry, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
| | - C S Premalatha
- Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
| | - V R Pallavi
- Department of Gynaeconcology, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
| | - Ramesh Gawari
- Department of Biochemistry, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
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Bodelon C, Ambatipudi S, Dugué PA, Johansson A, Sampson JN, Hicks B, Karlins E, Hutchinson A, Cuenin C, Chajès V, Southey MC, Romieu I, Giles GG, English D, Polidoro S, Assumma M, Baglietto L, Vineis P, Severi G, Herceg Z, Flanagan JM, Milne RL, Garcia-Closas M. Blood DNA methylation and breast cancer risk: a meta-analysis of four prospective cohort studies. Breast Cancer Res 2019; 21:62. [PMID: 31101124 PMCID: PMC6525390 DOI: 10.1186/s13058-019-1145-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/23/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Environmental and genetic factors play an important role in the etiology of breast cancer. Several small blood-based DNA methylation studies have reported risk associations with methylation at individual CpGs and average methylation levels; however, these findings require validation in larger prospective cohort studies. To investigate the role of blood DNA methylation on breast cancer risk, we conducted a meta-analysis of four prospective cohort studies, including a total of 1663 incident cases and 1885 controls, the largest study of blood DNA methylation and breast cancer risk to date. METHODS We assessed associations with methylation at 365,145 CpGs present in the HumanMethylation450 (HM450K) Beadchip, after excluding CpGs that did not pass quality controls in all studies. Each of the four cohorts estimated odds ratios (ORs) and 95% confidence intervals (CI) for the association between each individual CpG and breast cancer risk. In addition, each study assessed the association between average methylation measures and breast cancer risk, adjusted and unadjusted for cell-type composition. Study-specific ORs were combined using fixed-effect meta-analysis with inverse variance weights. Stratified analyses were conducted by age at diagnosis (< 50, ≥ 50), estrogen receptor (ER) status (+/-), and time since blood collection (< 5, 5-10, > 10 years). The false discovery rate (q value) was used to account for multiple testing. RESULTS The average age at blood draw ranged from 52.2 to 62.2 years across the four cohorts. Median follow-up time ranged from 6.6 to 8.4 years. The methylation measured at individual CpGs was not associated with breast cancer risk (q value > 0.59). In addition, higher average methylation level was not associated with risk of breast cancer (OR = 0.94, 95% CI = 0.85, 1.05; P = 0.26; P for study heterogeneity = 0.86). We found no evidence of modification of this association by age at diagnosis (P = 0.17), ER status (P = 0.88), time since blood collection (P = 0.98), or CpG location (P = 0.98). CONCLUSIONS Our data indicate that DNA methylation measured in the blood prior to breast cancer diagnosis in predominantly postmenopausal women is unlikely to be associated with substantial breast cancer risk on the HM450K array. Larger studies or with greater methylation coverage are needed to determine if associations exist between blood DNA methylation and breast cancer risk.
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Affiliation(s)
- Clara Bodelon
- Divison of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
| | - Srikant Ambatipudi
- International Agency for Research on Cancer (IARC), Lyon, France
- AMCHSS, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
| | - Pierre-Antoine Dugué
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria Australia
| | | | - Joshua N. Sampson
- Divison of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
| | - Belynda Hicks
- Divison of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, USA
| | - Eric Karlins
- Divison of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, USA
| | - Amy Hutchinson
- Divison of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, USA
| | - Cyrille Cuenin
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Veronique Chajès
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Melissa C. Southey
- Genetic Epidemiology Laboratory, Department of Pathology, The University of Melbourne, Parkville, Australia
| | - Isabelle Romieu
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Graham G. Giles
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria Australia
| | - Dallas English
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria Australia
| | - Silvia Polidoro
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Manuela Assumma
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Laura Baglietto
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Paolo Vineis
- MRC-PHE Center for Environment and Health, School of Public Health, Imperial College, London, UK
| | - Gianluca Severi
- CESP (U1018 INSERM, Équipe Générations et Santé), Facultés de médecine Université Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
| | - Zdenko Herceg
- International Agency for Research on Cancer (IARC), Lyon, France
| | | | - Roger L. Milne
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria Australia
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Cao X, Tang Q, Holland-Letz T, Gündert M, Cuk K, Schott S, Heil J, Golatta M, Sohn C, Schneeweiss A, Burwinkel B. Evaluation of Promoter Methylation of RASSF1A and ATM in Peripheral Blood of Breast Cancer Patients and Healthy Control Individuals. Int J Mol Sci 2018; 19:ijms19030900. [PMID: 29562656 PMCID: PMC5877761 DOI: 10.3390/ijms19030900] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/11/2018] [Accepted: 03/12/2018] [Indexed: 01/26/2023] Open
Abstract
Breast cancer (BC) is the most common cancer among women and has high mortality rates. Early detection is supposed to be critical for the patient’s prognosis. In recent years, several studies have investigated global DNA methylation profiles and gene-specific DNA methylation in blood-based DNA to develop putative screening markers for cancer. However, most of the studies have not yet been validated. In our study, we analyzed the promoter methylation of RASSF1A and ATM in peripheral blood DNA of 229 sporadic patients and 151 healthy controls by the MassARRAY EpiTYPER assay. There were no significant differences in DNA methylation levels of RASSF1A and ATM between the sporadic BC cases and the healthy controls. Furthermore, we performed the Infinium HumanMethylation450 BeadChip (450K) array analysis using 48 sporadic BC cases and 48 healthy controls (cases and controls are the same from those of the MassARRAY EpiTYPER assay) and made a comparison with the published data. No significant differences were presented in DNA methylation levels of RASSF1A and ATM between the sporadic BC cases and the healthy controls. So far, the evidence for powerful blood-based methylation markers is still limited and the identified markers need to be further validated.
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Affiliation(s)
- Xue Cao
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
| | - Qiuqiong Tang
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
| | - Tim Holland-Letz
- Division of Biostatistics (C060), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
| | - Melanie Gündert
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
| | - Katarina Cuk
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
| | - Sarah Schott
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
| | - Jörg Heil
- Department of Gynecology and Obstetrics, University Women's Clinic, Heidelberg 69120, Germany.
| | - Michael Golatta
- Department of Gynecology and Obstetrics, University Women's Clinic, Heidelberg 69120, Germany.
| | - Christof Sohn
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
| | - Andreas Schneeweiss
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- National Centre for Tumor Diseases, Heidelberg 69120, Germany.
| | - Barbara Burwinkel
- Molecular Biology of Breast Cancer, Department of Gynecology and Obstetrics, University of Heidelberg, Heidelberg 69120, Germany.
- Division of Molecular Epidemiology (C080), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany.
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Targeting the Epigenome as a Novel Therapeutic Approach for Breast Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1026:287-313. [DOI: 10.1007/978-981-10-6020-5_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Promoter Hypermethylation Analysis of the Tumor Suppressor Genes RASSF1A and RASSF2A in Iranian Endometrial Carcinoma Patients. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2017. [DOI: 10.5812/ijcm.8629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang J, Han X, Sun Y. DNA methylation signatures in circulating cell-free DNA as biomarkers for the early detection of cancer. SCIENCE CHINA-LIFE SCIENCES 2017; 60:356-362. [DOI: 10.1007/s11427-016-0253-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/16/2016] [Indexed: 02/06/2023]
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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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Terry MB, McDonald JA, Wu HC, Eng S, Santella RM. Epigenetic Biomarkers of Breast Cancer Risk: Across the Breast Cancer Prevention Continuum. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 882:33-68. [PMID: 26987530 PMCID: PMC5305320 DOI: 10.1007/978-3-319-22909-6_2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Epigenetic biomarkers, such as DNA methylation, can increase cancer risk through altering gene expression. The Cancer Genome Atlas (TCGA) Network has demonstrated breast cancer-specific DNA methylation signatures. DNA methylation signatures measured at the time of diagnosis may prove important for treatment options and in predicting disease-free and overall survival (tertiary prevention). DNA methylation measurement in cell free DNA may also be useful in improving early detection by measuring tumor DNA released into the blood (secondary prevention). Most evidence evaluating the use of DNA methylation markers in tertiary and secondary prevention efforts for breast cancer comes from studies that are cross-sectional or retrospective with limited corresponding epidemiologic data, raising concerns about temporality. Few prospective studies exist that are large enough to address whether DNA methylation markers add to the prediction of tertiary and secondary outcomes over and beyond standard clinical measures. Determining the role of epigenetic biomarkers in primary prevention can help in identifying modifiable pathways for targeting interventions and reducing disease incidence. The potential is great for DNA methylation markers to improve cancer outcomes across the prevention continuum. Large, prospective epidemiological studies will provide essential evidence of the overall utility of adding these markers to primary prevention efforts, screening, and clinical care.
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Affiliation(s)
- Mary Beth Terry
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
| | - Jasmine A McDonald
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Hui Chen Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Sybil Eng
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Regina M Santella
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
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Gao L, Xie E, Yu T, Chen D, Zhang L, Zhang B, Wang F, Xu J, Huang P, Liu X, Fang B, Pan S. Methylated APC and RASSF1A in multiple specimens contribute to the differential diagnosis of patients with undetermined solitary pulmonary nodules. J Thorac Dis 2015; 7:422-32. [PMID: 25922721 DOI: 10.3978/j.issn.2072-1439.2015.01.24] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/22/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Inactivation of tumor-suppressor gene (TSG) by promoter hypermethylation has been reported in many tumor types, including lung cancer. This study was designed to determine the methylated APC and RASSF1A genes in tumor tissue, serum and plasma of patients with early stage lung cancer. METHODS Eighty-nine patients with undetermined solitary pulmonary nodules detected upon CT-scan were recruited in this study. DNA samples were extracted from biopsy tissues, serum and plasma and QMSP of APC and RASSF1A was carried out after bisulfite conversion. The 89 patients consist of 58 stage I lung cancer patients and 31 benign lung disease according to pathological report. Twenty-six cancer patients had matched biopsy tumor tissue, serum and plasma samples. RESULTS The methylation rates of APC and RASSF1A were 59.0% and 66.1% in biopsy tissues, 42.5% and 52.5% in serum, and 24.1% and 43.1% in plasma of cancer patients. For RASSF1A, different samples all showed a significant difference between cancer group and benign group (P<0.05). However, APC gene only explored the P value less than 0.05 in plasma result. Towards the 26 lung cancer patients with three matched samples, methylation rate in each sample type was more than 50.0% and displayed no difference. CONCLUSIONS Evaluation of APC and RASSF1A promoter methylation by using QMSP appears to be very useful for the differential diagnosis of patients with undetermined solitary pulmonary nodules. Our results also suggested that plasma might be the best sample for clinical detection of early stage lung.
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Affiliation(s)
- Li Gao
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Erfu Xie
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Tongfu Yu
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Dan Chen
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lixia Zhang
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Bingfeng Zhang
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Fang Wang
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jian Xu
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Peijun Huang
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xisheng Liu
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Bingliang Fang
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shiyang Pan
- 1 Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical, Department of Laboratory Medicine, Nanjing 210029, China ; 3 Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 4 Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Oral contraceptive and reproductive risk factors for ovarian cancer within sisters in the breast cancer family registry. Br J Cancer 2014; 110:1074-80. [PMID: 24398512 PMCID: PMC3929882 DOI: 10.1038/bjc.2013.803] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 12/01/2013] [Accepted: 12/04/2013] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Oral contraceptive use has been consistently associated with a reduced risk of ovarian cancer in unrelated, average risk women; however little data exist on whether this benefit extends to higher risk women from cancer families. To examine this, we conducted family-based analyses using the Breast Cancer Family Registry. METHODS We used generalised estimating equations to obtain the population average effect across all families (n=389 cases, n=5643 controls) and conditional logistic regression to examine within-family differences in a subset with at least two sisters discordant on ovarian cancer status (n=109 cases, n=149 unaffected sister controls). RESULTS In the multivariable generalised estimating equation model there was a reduced risk of ovarian cancer for ever use of oral contraceptives compared with never use (OR=0.58, 95% CI: 0.37, 0.91), and in the conditional logistic model there was a similar inverse association; however, it was not statistically significant (OR=0.52, 95% CI: 0.23, 1.17). We examined this association by BRCA1/2 status and observed a statistically significant reduced risk in the non-carriers only. CONCLUSION We observed a decreased risk of ovarian cancer with oral contraceptive use supporting that this association observed in unrelated women extends to related women at higher risk.
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12
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Eccles SA, Aboagye EO, Ali S, Anderson AS, Armes J, Berditchevski F, Blaydes JP, Brennan K, Brown NJ, Bryant HE, Bundred NJ, Burchell JM, Campbell AM, Carroll JS, Clarke RB, Coles CE, Cook GJR, Cox A, Curtin NJ, Dekker LV, dos Santos Silva I, Duffy SW, Easton DF, Eccles DM, Edwards DR, Edwards J, Evans DG, Fenlon DF, Flanagan JM, Foster C, Gallagher WM, Garcia-Closas M, Gee JMW, Gescher AJ, Goh V, Groves AM, Harvey AJ, Harvie M, Hennessy BT, Hiscox S, Holen I, Howell SJ, Howell A, Hubbard G, Hulbert-Williams N, Hunter MS, Jasani B, Jones LJ, Key TJ, Kirwan CC, Kong A, Kunkler IH, Langdon SP, Leach MO, Mann DJ, Marshall JF, Martin LA, Martin SG, Macdougall JE, Miles DW, Miller WR, Morris JR, Moss SM, Mullan P, Natrajan R, O’Connor JPB, O’Connor R, Palmieri C, Pharoah PDP, Rakha EA, Reed E, Robinson SP, Sahai E, Saxton JM, Schmid P, Smalley MJ, Speirs V, Stein R, Stingl J, Streuli CH, Tutt ANJ, Velikova G, Walker RA, Watson CJ, Williams KJ, Young LS, Thompson AM. Critical research gaps and translational priorities for the successful prevention and treatment of breast cancer. Breast Cancer Res 2013; 15:R92. [PMID: 24286369 PMCID: PMC3907091 DOI: 10.1186/bcr3493] [Citation(s) in RCA: 275] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 09/12/2013] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Breast cancer remains a significant scientific, clinical and societal challenge. This gap analysis has reviewed and critically assessed enduring issues and new challenges emerging from recent research, and proposes strategies for translating solutions into practice. METHODS More than 100 internationally recognised specialist breast cancer scientists, clinicians and healthcare professionals collaborated to address nine thematic areas: genetics, epigenetics and epidemiology; molecular pathology and cell biology; hormonal influences and endocrine therapy; imaging, detection and screening; current/novel therapies and biomarkers; drug resistance; metastasis, angiogenesis, circulating tumour cells, cancer 'stem' cells; risk and prevention; living with and managing breast cancer and its treatment. The groups developed summary papers through an iterative process which, following further appraisal from experts and patients, were melded into this summary account. RESULTS The 10 major gaps identified were: (1) understanding the functions and contextual interactions of genetic and epigenetic changes in normal breast development and during malignant transformation; (2) how to implement sustainable lifestyle changes (diet, exercise and weight) and chemopreventive strategies; (3) the need for tailored screening approaches including clinically actionable tests; (4) enhancing knowledge of molecular drivers behind breast cancer subtypes, progression and metastasis; (5) understanding the molecular mechanisms of tumour heterogeneity, dormancy, de novo or acquired resistance and how to target key nodes in these dynamic processes; (6) developing validated markers for chemosensitivity and radiosensitivity; (7) understanding the optimal duration, sequencing and rational combinations of treatment for improved personalised therapy; (8) validating multimodality imaging biomarkers for minimally invasive diagnosis and monitoring of responses in primary and metastatic disease; (9) developing interventions and support to improve the survivorship experience; (10) a continuing need for clinical material for translational research derived from normal breast, blood, primary, relapsed, metastatic and drug-resistant cancers with expert bioinformatics support to maximise its utility. The proposed infrastructural enablers include enhanced resources to support clinically relevant in vitro and in vivo tumour models; improved access to appropriate, fully annotated clinical samples; extended biomarker discovery, validation and standardisation; and facilitated cross-discipline working. CONCLUSIONS With resources to conduct further high-quality targeted research focusing on the gaps identified, increased knowledge translating into improved clinical care should be achievable within five years.
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Affiliation(s)
- Suzanne A Eccles
- The Institute of Cancer Research, 15 Cotswold Road, London SM2 5MG, UK
| | - Eric O Aboagye
- Imperial College London, Exhibition Rd, London SW7 2AZ, UK
| | - Simak Ali
- Imperial College London, Exhibition Rd, London SW7 2AZ, UK
| | | | - Jo Armes
- Kings College London, Strand, London WC2R 2LS, UK
| | | | - Jeremy P Blaydes
- University of Southampton, University Road, Southampton SO17 1BJ, UK
| | - Keith Brennan
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Nicola J Brown
- University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Helen E Bryant
- University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Nigel J Bundred
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | | | | | - Jason S Carroll
- Cancer Research UK, Cambridge Research Institute/University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
| | - Robert B Clarke
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Charlotte E Coles
- Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, UK
| | - Gary JR Cook
- Kings College London, Strand, London WC2R 2LS, UK
| | - Angela Cox
- University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Nicola J Curtin
- Newcastle University, Claremont Road, Newcastle upon Tyne NE1 7RU, UK
| | | | | | - Stephen W Duffy
- Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Douglas F Easton
- Cancer Research UK, Cambridge Research Institute/University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
| | - Diana M Eccles
- University of Southampton, University Road, Southampton SO17 1BJ, UK
| | - Dylan R Edwards
- University of East Anglia, Earlham Road, Norwich NR4 7TJ, UK
| | - Joanne Edwards
- University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
| | - D Gareth Evans
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Deborah F Fenlon
- University of Southampton, University Road, Southampton SO17 1BJ, UK
| | | | - Claire Foster
- University of Southampton, University Road, Southampton SO17 1BJ, UK
| | | | | | - Julia M W Gee
- University of Cardiff, Park Place, Cardiff CF10 3AT, UK
| | - Andy J Gescher
- University of Leicester, University Road, Leicester LE1 4RH, UK
| | - Vicky Goh
- Kings College London, Strand, London WC2R 2LS, UK
| | - Ashley M Groves
- University College London, Gower Street, London WC1E 6BT, UK
| | | | - Michelle Harvie
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Bryan T Hennessy
- Royal College of Surgeons Ireland, 123, St Stephen’s Green, Dublin 2, Ireland
| | | | - Ingunn Holen
- University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Sacha J Howell
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Anthony Howell
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | | | | | | | - Bharat Jasani
- University of Cardiff, Park Place, Cardiff CF10 3AT, UK
| | - Louise J Jones
- Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Timothy J Key
- University of Oxford, Wellington Square, Oxford OX1 2JD, UK
| | - Cliona C Kirwan
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Anthony Kong
- University of Oxford, Wellington Square, Oxford OX1 2JD, UK
| | - Ian H Kunkler
- University of Edinburgh, South Bridge, Edinburgh EH8 9YL, UK
| | - Simon P Langdon
- University of Edinburgh, South Bridge, Edinburgh EH8 9YL, UK
| | - Martin O Leach
- The Institute of Cancer Research, 15 Cotswold Road, London SM2 5MG, UK
| | - David J Mann
- Imperial College London, Exhibition Rd, London SW7 2AZ, UK
| | - John F Marshall
- Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Lesley Ann Martin
- The Institute of Cancer Research, 15 Cotswold Road, London SM2 5MG, UK
| | - Stewart G Martin
- University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | | | | | | | | | - Sue M Moss
- Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Paul Mullan
- Queen’s University Belfast, University Road, Belfast BT7 1NN, UK
| | - Rachel Natrajan
- The Institute of Cancer Research, 15 Cotswold Road, London SM2 5MG, UK
| | | | | | - Carlo Palmieri
- The University of Liverpool, Brownlow Hill, Liverpool L69 7ZX, UK
| | - Paul D P Pharoah
- Cancer Research UK, Cambridge Research Institute/University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
| | - Emad A Rakha
- University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Elizabeth Reed
- Princess Alice Hospice, West End Lane, Esher KT10 8NA, UK
| | - Simon P Robinson
- The Institute of Cancer Research, 15 Cotswold Road, London SM2 5MG, UK
| | - Erik Sahai
- London Research Institute, 44 Lincoln’s Inn Fields, London WC2A 3LY, UK
| | - John M Saxton
- University of East Anglia, Earlham Road, Norwich NR4 7TJ, UK
| | - Peter Schmid
- Brighton and Sussex Medical School, University of Sussex, Brighton, East Sussex BN1 9PX, UK
| | | | | | - Robert Stein
- University College London, Gower Street, London WC1E 6BT, UK
| | - John Stingl
- Cancer Research UK, Cambridge Research Institute/University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
| | | | | | | | | | - Christine J Watson
- Cancer Research UK, Cambridge Research Institute/University of Cambridge, Trinity Lane, Cambridge CB2 1TN, UK
| | - Kaye J Williams
- University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Leonie S Young
- Royal College of Surgeons Ireland, 123, St Stephen’s Green, Dublin 2, Ireland
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Kawasaki H, Igawa E, Kohosozawa R, Kobayashi M, Nishiko R, Abe H. Detection of aberrant methylation of tumor suppressor genes in plasma from cancer patients. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.pmu.2013.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
During tumor development, tumor cells release their nucleic acids into the blood circulation. This process occurs by apoptotic and necrotic cell deaths along with active cell secretion, resulting in high levels of circulating DNA, mRNA, and microRNA in the blood of patients with breast cancer. As circulating cell-free tumor nucleic acids may reflect the characteristics of the primary tumor and even of micrometastatic cells, they may be excellent blood biomarkers for screening breast cancer. Assays that allow the repetitive monitoring of patients by using blood samples as liquid biopsy may be efficient in assessing cancer progression in patients whose tumor tissue is not available. This review evaluates the recent data on the potential use of circulating cell-free nucleic acids as biomarkers for breast cancer.
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Affiliation(s)
- Heidi Schwarzenbach
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistraβe 52, 20246 Hamburg, Germany
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Li L, Choi JY, Lee KM, Sung H, Park SK, Oze I, Pan KF, You WC, Chen YX, Fang JY, Matsuo K, Kim WH, Yuasa Y, Kang D. DNA methylation in peripheral blood: a potential biomarker for cancer molecular epidemiology. J Epidemiol 2012; 22:384-94. [PMID: 22863985 PMCID: PMC3798632 DOI: 10.2188/jea.je20120003] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aberrant DNA methylation is associated with cancer development and progression. There are several types of specimens from which DNA methylation pattern can be measured and evaluated as an indicator of disease status (from normal biological process to pathologic condition) and even of pharmacologic response to therapy. Blood-based specimens such as cell-free circulating nucleic acid and DNA extracted from leukocytes in peripheral blood may be a potential source of noninvasive cancer biomarkers. In this article, we describe the characteristics of blood-based DNA methylation from different biological sources, detection methods, and the factors affecting DNA methylation. We provide a comprehensive literature review of blood-based DNA methylation as a cancer biomarker and focus on the study of DNA methylation using peripheral blood leukocytes. Although DNA methylation patterns measured in peripheral blood have great potential to be useful and informative biomarkers of cancer risk and prognosis, large systematic and unbiased prospective studies that consider biological plausibility and data analysis issues will be needed in order to develop a clinically feasible blood-based assay.
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Affiliation(s)
- Lian Li
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
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Van De Voorde L, Speeckaert R, Van Gestel D, Bracke M, De Neve W, Delanghe J, Speeckaert M. DNA methylation-based biomarkers in serum of patients with breast cancer. Mutat Res 2012; 751:304-325. [PMID: 22698615 DOI: 10.1016/j.mrrev.2012.06.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 06/03/2012] [Accepted: 06/05/2012] [Indexed: 12/18/2022]
Abstract
Alterations of genetic and epigenetic features can provide important insights into the natural history of breast cancer. Although DNA methylation analysis is a rapidly developing field, a reproducible epigenetic blood-based assay for diagnosis and follow-up of breast cancer has yet to be successfully developed into a routine clinical test. The aim of this study was to review multiple serum DNA methylation assays and to highlight the value of those novel biomarkers in diagnosis, prognosis and prediction of therapeutic outcome. Serum is readily accessible for molecular diagnosis in all individuals from a peripheral blood sample. The list of hypermethylated genes in breast cancer is heterogeneous and no single gene is methylated in all breast cancer types. There is increasing evidence that a panel of epigenetic markers is essential to achieve a higher sensitivity and specificity in breast cancer detection. However, the reported percentages of methylation are highly variable, which can be partly explained by the different sensitivities and the different intra-/inter-assay coefficients of variability of the analysis methods. Moreover, there is a striking lack of receiver operating characteristic (ROC) curves of the proposed biomarkers. Another point of criticism is the fact that 'normal' patterns of DNA methylation of some tumor suppressor and other cancer-related genes are influenced by several factors and are often poorly characterized. A relatively frequent methylation of those genes has been observed in high-risk asymptomatic women. Finally, there is a call for larger prospective cohort studies to determine methylation patterns during treatment and follow-up. Identification of patterns specific for a differential response to therapeutic interventions should be useful. Only in this way, it will be possible to evaluate the predictive and prognostic characteristics of those novel promising biomarkers.
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Affiliation(s)
- Lien Van De Voorde
- Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital, Ghent, Belgium
| | | | - Dirk Van Gestel
- Department of Radiation Oncology, Antwerp University Hospital, Antwerp, Belgium
| | - Marc Bracke
- Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital, Ghent, Belgium
| | - Wilfried De Neve
- Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital, Ghent, Belgium
| | - Joris Delanghe
- Department of Clinical Chemistry, Ghent University Hospital, Ghent, Belgium
| | - Marijn Speeckaert
- Department of Clinical Chemistry, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium.
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17
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Gil EY, Jo UH, Jeong H, Whang YM, Woo OH, Cho KR, Seo JH, Kim A, Lee ES, Koh I, Kim YH, Park KH. Promoter methylation of RASSF1A modulates the effect of the microtubule-targeting agent docetaxel in breast cancer. Int J Oncol 2012; 41:611-20. [PMID: 22581300 DOI: 10.3892/ijo.2012.1470] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 04/12/2012] [Indexed: 02/05/2023] Open
Abstract
Docetaxel is one of the most commonly used chemotherapeutic agents in breast cancer. To avert from significant toxicities with no clinical benefit, identification of predictive markers for response is one of the most important unsolved clinical needs. Therefore, the potential associations of RASSF1A hypermethylation and response to docetaxel-based chemotherapy were evaluated, and the underlying mechanism was studied. The expression of RASSF1A in breast cancer cell lines and tissues of normal breast, ductal carcinoma in situ (DCIS), and breast cancer (n=45) was analyzed by immunohistochemistry and western blot analysis. Immunohistochemical staining showed that the expression of RASSF1A was frequently lost in primary breast cancers and human breast cancer cell lines, while normal breast tissues or DCIS displayed moderate to strong expression. Furthermore, quantitative methylation analysis of the RASSF1A promoter region in 45 primary breast cancers revealed that RASSF1A was frequently methylated in primary breast cancers (≥20% methylation in 53% of the patients), and prospective analysis in patients with locally advanced or recurrent breast cancer showed that the mean level of methylation of RASSF1A was significantly higher in patients who did not respond to docetaxel-based chemotherapy (30.6±8.5%) than patients with partial or complete response (20.1±11.2%, p=0.042). Finally, in vitro studies showed that RASSF1A had cooperative activity in suppression of cancer cell growth and proliferation by enhancing docetaxel-induced cell cycle arrest. Our results suggest that hypermethylated RASSF1A is an important modulating factor for the efficacy of docetaxel-based chemotherapy in breast cancer.
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Affiliation(s)
- Eun Young Gil
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
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18
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Brooks JD, Cairns P, Shore RE, Klein CB, Wirgin I, Afanasyeva Y, Zeleniuch-Jacquotte A. DNA methylation in pre-diagnostic serum samples of breast cancer cases: results of a nested case-control study. Cancer Epidemiol 2011; 34:717-23. [PMID: 20627767 DOI: 10.1016/j.canep.2010.05.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 05/06/2010] [Accepted: 05/08/2010] [Indexed: 11/27/2022]
Abstract
BACKGROUND Promoter methylation of tumor suppressor genes is a frequent and early event in breast carcinogenesis. Paired tumor tissue and serum samples from women with breast cancer show that promoter methylation is detectable in both sample types, with good concordance. This suggests the potential for these serum markers to be used for breast cancer detection. METHODS The current study was a case-control study nested within the prospective New York University Women's Health Study cohort aimed to assess the ability of promoter methylation in serum to detect pre-clinical disease. Cases were women with blood samples collected within the 6 months preceding breast cancer diagnosis (n=50). Each case was matched to 2 healthy cancer-free controls and 1 cancer-free control with a history of benign breast disease (BBD). RESULTS Promoter methylation analysis of four cancer-related genes: -RASSF1A, GSTP1, APC and RARβ2, - was conducted using quantitative methylation-specific PCR. Results showed that the frequency of methylation was lower than expected among cases and higher than expected among controls. Methylation was detected in the promoter region of: RASSF1A in 22.0%, 22.9% and 17.2% of cases, BBD controls and healthy controls respectively; GSTP1 in 4%, 10.4% and 7.1% respectively; APC in 2.0%, 4.4% and 4.2% respectively and RARβ2 in 6.7%, 2.3% and 1.1% respectively. CONCLUSION Methylation status of the four genes included in this study was unable to distinguish between cases and either control group. This study highlights some methodological issues to be addressed in planning prospective studies to evaluate methylation markers as diagnostic biomarkers.
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Affiliation(s)
- Jennifer D Brooks
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, United States.
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Cassinotti E, Melson J, Liggett T, Melnikov A, Yi Q, Replogle C, Mobarhan S, Boni L, Segato S, Levenson V. DNA methylation patterns in blood of patients with colorectal cancer and adenomatous colorectal polyps. Int J Cancer 2011; 131:1153-7. [PMID: 22020530 DOI: 10.1002/ijc.26484] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 09/15/2011] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) screening rates are currently suboptimal. Blood-based screening could improve rates of earlier detection for CRC and adenomatous colorectal polyps. In this study, we evaluated the feasibility of plasma-based detection of early CRC and adenomatous polyps using array-mediated analysis methylation profiling of 56 genes implicated in carcinogenesis. Methylation of 56 genes in patients with Stages I and II CRC (N=30) and those with adenomatous polyps (N=30) were compared with individuals who underwent colonoscopy and were found to have neither adenomatous changes nor CRC. Composite biomarkers were developed for adenomatous polyps and CRC, and their sensitivity and specificity was estimated using five-fold cross validation. Six promoters (CYCD2, HIC1, PAX 5, RASSF1A, RB1 and SRBC) were selected for the biomarker, which differentiated CRC patients and controls with 84% sensitivity and 68% specificity. Three promoters (HIC1, MDG1 and RASSF1A) were selected for the biomarker, which differentiated patients with adenomatous polyps and controls with sensitivity of 55% and specificity of 65%. Methylation profiling of plasma DNA can detect early CRC with significant accuracy and shows promise as a methodology to develop biomarkers for CRC screening.
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Affiliation(s)
- Elisa Cassinotti
- Department of Surgical Sciences, Minimally Invasive Surgery Research Center, University of Insubria, Varese, Italy
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Pang D, Zhao Y, Xue W, Shan M, Chen Y, Zhang Y, Zhang G, Liu F, Li D, Yang Y. Methylation profiles of the BRCA1 promoter in hereditary and sporadic breast cancer among Han Chinese. Med Oncol 2011; 29:1561-8. [PMID: 22076508 DOI: 10.1007/s12032-011-0100-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2011] [Accepted: 10/25/2011] [Indexed: 01/18/2023]
Abstract
The development of breast cancer is a multistep process associated with complex changes in host gene expression patterns including inactivation of tumor suppressor genes and activation of oncogenes. Critically, hereditary predisposition plays a significant role in cancer susceptibility. However, mutation of the BRCA1 gene is found only in the minority of hereditary breast cancer, which indicates that there might be alternative, novel mechanisms contributing to inactivation of the BRCA1 gene. Studies have shown that aberrant methylation of genomic DNA plays an important role in carcinogenesis. The aim of this study was to investigate whether DNA methylation may be an alternative mechanism for the inactivation of BRCA1 as an epigenetic modification of the genome and whether hereditary breast cancer has a different BRCA1 methylation phenotype pattern than sporadic breast cancer. The pattern of CpG island methylation within the promoter region of BRCA1 was assessed by bisulfite sequencing DNA from peripheral blood cells of 72 patients with hereditary predisposition but without BRCA1 mutations and 30 sporadic breast cancer controls. The overall methylation level in patients with hereditary predisposition was significantly lower than that in the sporadic control group. However, patients with hereditary predisposition showed a significantly higher methylation susceptibility for the sites -518 when compared to controls. These results suggest that there might be different BRCA1 promoter methylation levels and patterns in sporadic and hereditary breast cancer in peripheral blood DNA. These findings may facilitate the early diagnosis of hereditary breast cancer.
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Affiliation(s)
- Da Pang
- Department of Breast Surgery, The Third Affiliated Hospital of Harbin Medical University, HaPing Road 158, Harbin, China.
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Fan YJ, Liu B, Wang LD, Li L, Lan Y. Clinical significance of RASSF1A promoter methylation in gastric cardiac carcinoma and esophageal squamous cell carcinoma. Shijie Huaren Xiaohua Zazhi 2011; 19:84-88. [DOI: 10.11569/wcjd.v19.i1.84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the methylation status of the promoter region of the RASSF1A gene in gastric cardiac adenocarcinoma (GCA) and esophageal squamous cell carcinoma (ESCC) in the distal esophagus and to analyze their clinical significance.
METHODS: Thirty-three GCA patients and 36 ESCC patients who came from a high-incidence region of ESCC in Linzhou, Henan and were treated at Yaocun Esophageal Cancer Hospital and Linzhou Center Hospital were enrolled in this study. No statistical differences were found in sex, age, and tumor differentiation between GCA and ESCC patients. No patients received chemotherapy or radiotherapy before operation. Methylation-specific polymerase chain reaction (MSP) was used to investigate the methylation status of the promoter region of the RASSF1A gene in the two groups of patients.
RESULTS: For GCA patients, the frequencies of RASSF1A promoter methylation in cancer tissue (CA), matched dysplasia tissue (DYS) and normal tissue (NOR) were 63.6%, 20% and 4.2%, respectively. For ESCC patients, the frequencies of RASSF1A promoter methylation in tumor tissue, matched dysplasia tissue and normal tissue were 66.7%, 25% and 16.7%, respectively. High methylation frequency was found in both types of cancer tissue. With the evolution of lesions (NOR-DYS-CA), the frequency of RASSF1A promoter methylation showed an increasing tendency in both GCA (χ2 = 22.173, P < 0.001) and ESCC patients (χ2 = 19.324, P < 0.001). The frequency of RASSF1A promoter methylation in normal tissue from GCA patients was lower than that from ESCC patients.
CONCLUSION: RASSF1A promoter hypermethylation is a molecular event that occurs in both GCA and ESCC patients. RASSF1A is a potential candidate biomarker for early detection of carcinoma of the esophagogastric junction.
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