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Singh A, Gupta S, Sachan M. Epigenetic Biomarkers in the Management of Ovarian Cancer: Current Prospectives. Front Cell Dev Biol 2019; 7:182. [PMID: 31608277 PMCID: PMC6761254 DOI: 10.3389/fcell.2019.00182] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/19/2019] [Indexed: 12/15/2022] Open
Abstract
Ovarian cancer (OC) causes significant morbidity and mortality as neither detection nor screening of OC is currently feasible at an early stage. Difficulty to promptly diagnose OC in its early stage remains challenging due to non-specific symptoms in the early-stage of the disease, their presentation at an advanced stage and poor survival. Therefore, improved detection methods are urgently needed. In this article, we summarize the potential clinical utility of epigenetic signatures like DNA methylation, histone modifications, and microRNA dysregulation, which play important role in ovarian carcinogenesis and discuss its application in development of diagnostic, prognostic, and predictive biomarkers. Molecular characterization of epigenetic modification (methylation) in circulating cell free tumor DNA in body fluids offers novel, non-invasive approach for identification of potential promising cancer biomarkers, which can be performed at multiple time points and probably better reflects the prevailing molecular profile of cancer. Current status of epigenetic research in diagnosis of early OC and its management are discussed here with main focus on potential diagnostic biomarkers in tissue and body fluids. Rapid and point of care diagnostic applications of DNA methylation in liquid biopsy has been precluded as a result of cumbersome sample preparation with complicated conventional methods of isolation. New technologies which allow rapid identification of methylation signatures directly from blood will facilitate sample-to answer solutions thereby enabling next-generation point of care molecular diagnostics. To date, not a single epigenetic biomarker which could accurately detect ovarian cancer at an early stage in either tissue or body fluid has been reported. Taken together, the methodological drawbacks, heterogeneity associated with ovarian cancer and non-validation of the clinical utility of reported potential biomarkers in larger ovarian cancer populations has impeded the transition of epigenetic biomarkers from lab to clinical settings. Until addressed, clinical implementation as a diagnostic measure is a far way to go.
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Affiliation(s)
- Alka Singh
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, India
| | - Sameer Gupta
- Department of Surgical Oncology, King George Medical University, Lucknow, India
| | - Manisha Sachan
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, India
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Tan X, Zhang S, Gao H, He W, Xu M, Wu Q, Ni X, Jiang H. Hypermethylation of the PTTG1IP promoter leads to low expression in early-stage non-small cell lung cancer. Oncol Lett 2019; 18:1278-1286. [PMID: 31423188 PMCID: PMC6607221 DOI: 10.3892/ol.2019.10400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 04/15/2019] [Indexed: 12/25/2022] Open
Abstract
Despite the clinical requirement for early diagnosis, the early events in lung cancer and their mechanisms are not fully understood. Pituitary tumor transforming gene 1 binding factor (PTTG1IP) is a tumor-associated gene; however, to the best of our knowledge, its association with lung cancer has not been reported. The present study analyzed PTTG1IP expression in early-stage non-small cell lung cancer (NSCLC) samples and investigated its epigenetic regulatory mechanisms. The results revealed that the mRNA level of PTTG1IP in NSCLC tissues was significantly downregulated by 43% compared with that in adjacent tissues. In addition, overexpression of this gene significantly inhibited cell proliferation. According to data from The Cancer Genome Atlas, a significant negative correlation was identified between the PTTG1IP gene methylation level and expression level in lung adenocarcinoma and lung squamous cell carcinoma cases. Reduced representation bisulfite sequencing (RRBS) analysis of six paired early-stage NSCLC tissue samples indicated that the CpG island shore of the PTTG1IP promoter is hypermethylated in lung cancer tissues, which was further validated in 12 paired early-stage NSCLC samples via bisulfite amplicon sequencing. Following treatment with 5-aza-2′-deoxycytidine to reduce DNA methylation in the promoter region, the PTTG1IP mRNA level increased, indicating that the PTTG1IP promoter DNA methylation level negatively regulates PTTG1IP transcription. In conclusion, in early-stage NSCLC, the PTTG1IP gene is regulated by DNA methylation in its promoter region, which may participate in the development and progression of lung cancer.
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Affiliation(s)
- Xiaoming Tan
- Department of Respiratory Disease, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Sufen Zhang
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Huifang Gao
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Wanhong He
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Minjie Xu
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Qihan Wu
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Xiaohua Ni
- NHC Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, P.R. China
| | - Handong Jiang
- Department of Respiratory Disease, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
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Evaluation of Serum Paired MicroRNA Ratios for Differential Diagnosis of Non-Small Cell Lung Cancer and Benign Pulmonary Diseases. Mol Diagn Ther 2019; 22:493-502. [PMID: 29922886 DOI: 10.1007/s40291-018-0341-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND OBJECTIVE To clarify whether there are different expressions between lung cancer and benign pulmonary diseases, we studied seven microRNAs (miRNAs) in serum from patients with non-small cell lung cancer (NSCLC), benign pulmonary nodules and four pulmonary inflammation diseases. METHODS We detected the expression of miRNAs using quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). RESULTS We found that five miRNA ratios-miR-15b-5p/miR-146b-3p, miR-20a-5p/miR-146b-3p, miR-19a-3p/miR-146b-3p, miR-92a-3p/miR-146b-3p, and miR-16-5p/miR-146b-3p-show higher expression in the NSCLC group than the benign pulmonary nodule group, and 13 ratios of miRNAs were significantly upregulated in the NSCLC group compared with the pulmonary inflammation diseases group. Receiver operating characteristic (ROC) curve analysis was performed. For NSCLC and benign pulmonary nodules, the sensitivity and specificity were 0.70 and 0.90, respectively. For NSCLC and pulmonary inflammation diseases, the sensitivity and specificity were 0.81 and 0.71, respectively. CONCLUSION The ratios of miRNAs can be used as potential non-invasive biomarkers for diagnosis of early-stage NSCLC and benign pulmonary diseases.
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Zhu J, Huang G, Hua X, Li Y, Yan H, Che X, Tian Z, Liufu H, Huang C, Li J, Xu J, Dai W, Huang H, Huang C. CD44s is a crucial ATG7 downstream regulator for stem-like property, invasion, and lung metastasis of human bladder cancer (BC) cells. Oncogene 2019; 38:3301-3315. [PMID: 30635654 PMCID: PMC7112719 DOI: 10.1038/s41388-018-0664-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 12/01/2018] [Accepted: 12/11/2018] [Indexed: 02/06/2023]
Abstract
Over half a million US residents are suffering with bladder cancer (BC), which costs a total $4 billion in treatment annually. Although recent studies report that autophagy-related gene 7 (ATG7) is overexpressed in BCs, the regulatory effects of ATG7 on cancer stem-like phenotypes and invasion have not been explored yet. Current studies demonstrated that the deficiency of ATG7 by its shRNA dramatically reduced sphere formation and invasion in vitro, as well as lung metastasis in vivo in human invasive BC cells. Further studies indicated that the knockdown of ATG7 attenuated the expression of CD44 standard (CD44s), while ectopic introduction of CD44s, was capable of completely restoring sphere formation, invasion, and lung metastasis in T24T(shATG7) cells. Mechanistic studies revealed that ATG7 overexpression stabilized CD44s proteins accompanied with upregulating USP28 proteins. Upregulated USP28 was able to bind to CD44s and remove the ubiquitin group from CD44s' protein, resulting in the stabilization of CD44s protein. Moreover, ATG7 inhibition stabilized AUF1 protein and thereby reduced tet1 mRNA stability and expression, which was able to demethylate usp28 promoter, reduced USP28 expression, finally promoting CD44s degradation. In addition, CD44s was defined to inhibit degradation of RhoGDIβ, which in turn promotes BC invasion. Our results demonstrate that CD44s is a key ATG7 downstream regulator of the sphere formation, invasion, and lung metastasis of BCs, providing significant insight into understanding the BC invasions, metastasis, and stem-like properties.
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Affiliation(s)
- Junlan Zhu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Grace Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
- Summer Intern from Northern Highlands Regional High School, 298 Hillside Ave, Allendale, NJ, 07401, USA
| | - Xiaohui Hua
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Yang Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Huiying Yan
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xun Che
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Zhongxian Tian
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Huating Liufu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chao Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Jingxia Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Jiheng Xu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Wei Dai
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA
| | - Haishan Huang
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Chuanshu Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, NY, 10010, USA.
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Watson KS, Hulbert A, Henderson V, Chukwudozie IB, Aponte-Soto L, Lerner L, Martinez E, Kim S, Winn RA. Lung Cancer Screening and Epigenetics in African Americans: The Role of the Socioecological Framework. Front Oncol 2019; 9:87. [PMID: 30915271 PMCID: PMC6423082 DOI: 10.3389/fonc.2019.00087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 01/30/2019] [Indexed: 11/13/2022] Open
Abstract
Lung cancer is the leading cause of cancer morbidity and mortality in the U.S. and racial/ethnic minorities carry the greatest burden of lung cancer disparities with African Americans (AAs) impacted disproportionately. Inequities in lung cancer health disparities are often associated with multiple bio-behavioral and socio-cultural factors among racial/ethnic minorities. Epigenetic research has advanced the understanding of the intersectionality between biological and socio-cultural factors in lung cancer disparities among AAs. However, gaps exist in the engagement of diverse populations in epigenetic lung cancer research, which poses a challenge in ensuring the generalizability and implementation of epigenetic research in populations that carry an unequal cancer burden. Grounding epigenetic lung cancer research within a socio-ecological framework may prove promising in implementing a multi-level approach to community engagement, screening, navigation, and research participation among AAs. The University of Illinois Cancer Center (UI Cancer Center) is employing an evidence–based (EB) model of community/patient engagement utilizing the socio-ecological model (SEM) to develop a culturally sensitive epigenetic lung cancer research program that addresses multiple factors that impact lung cancer outcomes in AAs. By implementing epigenetic research within a group of Federally Qualified Health Centers (FQHCs) guided by the SEM, the UI Cancer Center is proposing a new pathway in mitigating lung cancer disparities in underserved communities. At the individual level, the framework examines tobacco use among patients at FQHCs (the organizational level) and also tailors epigenetic research to explore innovative biomarkers in high risk populations. Interpersonal interventions use Patient Navigators to support navigation to EB tobacco cessation resources and lung cancer screening. Community level support within the SEM is developed by ongoing partnerships with local and national partners such as the American Lung Association (ALA) and the American Cancer Society (ACS). Lastly, at the policy level, the UI Cancer Center acknowledges the role of policy implications in lung cancer screening and advocates for policies and screening recommendations that examine the current guidelines from the United States Preventive Services Task Force (USPTF).
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Affiliation(s)
| | - Alicia Hulbert
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States.,Department of Surgery, University of Illinois at Chicago, Chicago, IL, United States
| | - Vida Henderson
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | | | - Lisa Aponte-Soto
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Lane Lerner
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Erica Martinez
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Sage Kim
- Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL, United States
| | - Robert A Winn
- Cancer Center, University of Illinois at Chicago, Chicago, IL, United States.,Department of Surgery, University of Illinois at Chicago, Chicago, IL, United States.,Division of Pulmonary, Critical Care, Sleep and Allergy, University of Illinois at Chicago, Chicago, IL, United States
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Billatos E, Duan F, Moses E, Marques H, Mahon I, Dymond L, Apgar C, Aberle D, Washko G, Spira A. Detection of early lung cancer among military personnel (DECAMP) consortium: study protocols. BMC Pulm Med 2019; 19:59. [PMID: 30845938 PMCID: PMC6407252 DOI: 10.1186/s12890-019-0825-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 02/26/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Lung cancer is the leading cause of cancer-related death due in large part to our inability to diagnose it at an early and potentially curable stage. Screening for lung cancer via low dose computed tomographic (LDCT) imaging has been demonstrated to improve mortality but also results in a high rate of false positive tests. The identification and application of non-invasive molecular biomarkers that improve the performance of CT imaging for the detection of lung cancer in high risk individuals would aid in clinical decision-making, eliminate the need for unnecessary LDCT follow-up, and further refine the screening criteria for an already large high-risk population. METHODS The Detection of Early Lung Cancer Among Military Personnel (DECAMP) consortium is conducting two multicenter prospective studies with the goals of developing an integrated panel of both airway and blood-based molecular biomarkers that discriminate benign and malignant indeterminate nodules detected on CT scan as well as predict the future development of lung cancer in high-risk individuals. To achieve these goals, DECAMP is compiling an extensive array of biospecimens including nasal brushings, serum, plasma and intrathoracic airway samples (bronchial brushings and bronchial biopsies) from normal-appearing airway epithelium. DISCUSSION This bank of samples is the foundation for multiple DECAMP efforts focused on the identification of those at greatest risk of developing lung cancer as well as the discrimination of benign and malignant pulmonary nodules. The clinical, imaging and biospecimen repositories will serve as a resource for the biomedical community and their investigation of the molecular basis of chronic respiratory disease. TRIAL REGISTRATION Retrospectively registered as NCT01785342 - DECAMP-1: Diagnosis and Surveillance of Indeterminate Pulmonary Nodules (DECAMP-1). Date of Registration: February 7, 2013. Retrospectively registered as NCT02504697 - DECAMP-2: Screening of Patients With Early Stage Lung Cancer or at High Risk for Developing Lung Cancer (DECAMP-2). Date of Registration: July 22, 2015.
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Affiliation(s)
- Ehab Billatos
- Division of Pulmonary, Allergy, and Critical Care Medicine, Boston University School of Medicine, Boston, MA 02118 USA
| | - Fenghai Duan
- Department of Biostatistics, Brown University, Providence, RI 02912 USA
| | - Elizabeth Moses
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA 02118 USA
| | - Helga Marques
- Department of Biostatistics, Brown University, Providence, RI 02912 USA
| | - Irene Mahon
- American College of Radiology Imaging Network, Philadelphia, PA 19103 USA
| | - Lindsey Dymond
- American College of Radiology Imaging Network, Philadelphia, PA 19103 USA
| | - Charles Apgar
- American College of Radiology Imaging Network, Philadelphia, PA 19103 USA
| | - Denise Aberle
- Department of Radiological Sciences, University of California at Los Angeles, Los Angeles, CA 90024 USA
| | - George Washko
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s University, Boston, MA 02115 USA
| | - Avrum Spira
- Division of Pulmonary, Allergy, and Critical Care Medicine, Boston University School of Medicine, Boston, MA 02118 USA
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA 02118 USA
| | - on behalf of the DECAMP investigators
- Division of Pulmonary, Allergy, and Critical Care Medicine, Boston University School of Medicine, Boston, MA 02118 USA
- Department of Biostatistics, Brown University, Providence, RI 02912 USA
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA 02118 USA
- American College of Radiology Imaging Network, Philadelphia, PA 19103 USA
- Department of Radiological Sciences, University of California at Los Angeles, Los Angeles, CA 90024 USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s University, Boston, MA 02115 USA
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Husni RE, Shiba-Ishii A, Nakagawa T, Dai T, Kim Y, Hong J, Sakashita S, Sakamoto N, Sato Y, Noguchi M. DNA hypomethylation-related overexpression of SFN, GORASP2 and ZYG11A is a novel prognostic biomarker for early stage lung adenocarcinoma. Oncotarget 2019; 10:1625-1636. [PMID: 30899432 PMCID: PMC6422190 DOI: 10.18632/oncotarget.26676] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/01/2019] [Indexed: 12/26/2022] Open
Abstract
Although alteration of DNA methylation in advanced cancer has been extensively investigated, few data for early-stage lung adenocarcinoma are available. Here, we compared DNA methylation profiles between adenocarcinoma in situ (AIS) and early invasive adenocarcinoma using the Infinium methylation array to investigate methylation abnormalities causing early progression of adenocarcinomas. We focused on differentially methylated sites which were located in promoter CpG islands or shore regions, and identified 579 hypermethylated sites and 23 hypomethylated sites in early invasive adenocarcinoma relative to AIS and normal lung. These hypermethylated genes were significantly associated with neuronal pathways such as the GABA receptor and serotonin signaling pathways. Among the hypomethylated genes, we found that GORASP2, ZYG11A, and SFN had significantly lower methylation rates at the shore regions and significantly higher protein expression in invasive adenocarcinoma. Moreover, overexpression of those proteins was strongly associated with patient’s poor outcome. Despite DNA demethylation at the promoter region might be rare relative to DNA hypermethylation, we identified 2 new genes, GORASP2 and ZYG11A, which show hypomethylation and overexpression in invasive adenocarcinoma, suggesting that they have important functions in tumor cells. These genes may be clinically applicable as prognostic indicators and could be potential novel target molecules for drug development.
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Affiliation(s)
- Ryan Edbert Husni
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Aya Shiba-Ishii
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Tomoki Nakagawa
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Tomoko Dai
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yunjung Kim
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Jeongmin Hong
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Shingo Sakashita
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Noriaki Sakamoto
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yukio Sato
- Department of Thoracic Surgery, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masayuki Noguchi
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Lozano MD, Echeveste JI, Abengozar M, Mejías LD, Idoate MA, Calvo A, de Andrea CE. Cytology Smears in the Era of Molecular Biomarkers in Non-Small Cell Lung Cancer: Doing More With Less. Arch Pathol Lab Med 2019; 142:291-298. [PMID: 29494220 DOI: 10.5858/arpa.2017-0208-ra] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - The rapid advances in targeted therapies in non-small cell lung cancer (NSCLC) make the optimization and implementation of cytology specimens for molecular testing a priority. Up to 70% of patients with NSCLC are diagnosed at advanced stages and tissue biopsies often cannot be taken. Although cytology samples provide high-quality material for molecular testing, molecular cytopathology is not yet well known or widely used. OBJECTIVE - To report the many advances in molecular cytopathology and the suitability and utility of cytology samples in molecular and genetic testing of NSCLC. DATA SOURCES - Data sources comprised published peer-reviewed literature and personal experience of the authors. CONCLUSIONS - Molecular testing can be performed on cytologic specimens, especially on direct smears. Rapid on-site evaluation by cytopathologists has improved the adequacy and the management of cytology samples for molecular testing. Mutational profiling of NSCLC using next-generation sequencing can be performed on cytology samples from very small amounts of DNA. Fluorescence in situ hybridization assays on cytology specimens, including stained direct smear, offer some distinct advantages over their histologic counterpart, and are used to detect ALK and ROS1 rearrangements in NSCLC. Cytology specimens allow assessment of the entire tumor cell nucleus, avoiding signal loss from truncation artifacts. The use of cytology samples for assessing programmed death ligand-1 protein expression is currently being developed. Protocols for bisulfite conversion and DNA droplet digital polymerase chain reaction assays have been optimized for cytology smear to investigate aberrant DNA methylation of several NSCLC-related genes.
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Affiliation(s)
| | | | | | | | | | | | - Carlos E de Andrea
- From the Department of Pathology, Clínica Universidad de Navarra, (Drs Lozano, Echeveste, Abengozar, Mejías, Idoate, and de Andrea), IDISNA and Program in Solid Tumors and Biomarkers, Center for Applied Medical Research (CIMA) (Dr Calvo), and the Department of Histology and Pathology (Drs Calvo and de Andrea), University of Navarra, Pamplona, Spain
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Genome-Wide Plasma Cell-Free DNA Methylation Profiling Identifies Potential Biomarkers for Lung Cancer. DISEASE MARKERS 2019; 2019:4108474. [PMID: 30867848 PMCID: PMC6379867 DOI: 10.1155/2019/4108474] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/04/2018] [Accepted: 12/16/2018] [Indexed: 12/18/2022]
Abstract
As a noninvasive blood testing, the detection of cell-free DNA (cfDNA) methylation in plasma has raised an increasing interest due to diagnostic applications. Although extensively used in cfDNA methylation analysis, bisulfite sequencing is less cost-effective. In this study, we investigated the cfDNA methylation patterns in lung cancer patients by MeDIP-seq. Compared with the healthy individuals, 330 differentially methylated regions (DMRs) at gene promoters were identified in lung cancer patients with 33 hypermethylated and 297 hypomethylated regions, respectively. Moreover, these hypermethylated genes were validated with the publicly available DNA methylation data, yielding a set of ten significant differentially methylated genes in lung cancer, including B3GAT2, BCAR1, HLF, HOPX, HOXD11, MIR1203, MYL9, SLC9A3R2, SYT5, and VTRNA1-3. Our study demonstrated MeDIP-seq could be effectively used for cfDNA methylation profiling and identified a set of potential biomarker genes with clinical application for lung cancer.
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Zhang X, Wang Q, Zhang S. MicroRNAs in sputum specimen as noninvasive biomarkers for the diagnosis of nonsmall cell lung cancer: An updated meta-analysis. Medicine (Baltimore) 2019; 98:e14337. [PMID: 30732158 PMCID: PMC6380860 DOI: 10.1097/md.0000000000014337] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Nonsmall cell lung cancer (NSCLC) is a serious leading cause of death worldwide. Recently, multiple researches have identified that microRNA (miRNA) in sputum could be a useful tool for NSCLC diagnosis. The objective of this study was to assess whether aberrant miRNA expression could be regarded as a useful biomarker in sputum specimen for the diagnosis of NSCLC. METHODS Eligible studies were searched in PubMed, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang, and VIP databases up to June 2018. We calculated the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and area under the curve (AUC) to investigate the diagnostic value of miRNA in sputum for NSCLC. MetaDisc1.4 and STATA12.0 were used to analyze the retrieved data. RESULTS Finally, a total of 14 articles were included in this meta-analysis involving 1009 NSCLC patients and 1006 controls. The results were as followed: the pooled sensitivity, specificity, PLR, NLR, DOR, were 0.75 (95%CI:0.72-0.78), 0.88 (95%CI:0.86-0.90), 5.70 (95%CI:4.82-6.75), 0.30 (95%CI:0.26-0.34), 22.43 (95%CI:17.48-28.79), respectively. The AUC of overall summary receiver operator characteristic curve (SROC) was 0.8917. CONCLUSION Our comprehensive analysis indicated that miRNAs in sputum specimen may be noninvasive diagnostic biomarkers for NSCLC. However, much more studies should be conducted before clinical application.
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Affiliation(s)
- Xiaoyun Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University
| | - Qian Wang
- Department of Medical Laboratory, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan Province, China
| | - Shijie Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University
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O'Keefe CM, Giammanco D, Li S, Pisanic TR, Wang THJ. Multilayer microfluidic array for highly efficient sample loading and digital melt analysis of DNA methylation. LAB ON A CHIP 2019; 19:444-451. [PMID: 30623957 PMCID: PMC6363116 DOI: 10.1039/c8lc01189c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Liquid biopsies contain a treasure of genetic and epigenetic biomarkers that contain information for the detection and monitoring of human disease. DNA methylation is an epigenetic modification that is critical to determining cellular phenotype and often becomes altered in many disease states. In cancer, aberrant DNA methylation contributes to carcinogenesis and can profoundly affect tumor evolution, metastatic potential, and resistance to therapeutic intervention. However, current technologies are not well-suited for quantitative assessment of DNA methylation heterogeneity, especially in challenging samples such as liquid biopsies with low DNA input and high background. We present a multilayer microfluidic device for quantitative analysis of DNA methylation by digital PCR and high resolution melt (HRM). The multilayer design facilitates high-density array digitization aimed at maximizing sample loading efficiency. The platform achieves highly parallelized digital PCR-HRM-based discrimination of rare heterogeneous DNA methylation as low as 0.0001% methylated/unmethylated molecules of a classic tumor suppressor gene, CDKN2A (p14ARF).
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Affiliation(s)
- Christine M O'Keefe
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21218, USA
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Sarne V, Braunmueller S, Rakob L, Seeboeck R. The Relevance of Gender in Tumor-Influencing Epigenetic Traits. EPIGENOMES 2019; 3:epigenomes3010006. [PMID: 34991275 PMCID: PMC8594720 DOI: 10.3390/epigenomes3010006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/20/2019] [Accepted: 01/24/2019] [Indexed: 12/22/2022] Open
Abstract
Tumorigenesis as well as the molecular orchestration of cancer progression are very complex mechanisms that comprise numerous elements of influence and regulation. Today, many of the major concepts are well described and a basic understanding of a tumor's fine-tuning is given. Throughout the last decade epigenetics has been featured in cancer research and it is now clear that the underlying mechanisms, especially DNA and histone modifications, are important regulators of carcinogenesis and tumor progression. Another key regulator, which is well known but has been neglected in scientific approaches as well as molecular diagnostics and, consequently, treatment conceptualization for a long time, is the subtle influence patient gender has on molecular processes. Naturally, this is greatly based on hormonal differences, but from an epigenetic point of view, the diverse susceptibility to stress and environmental influences is of prime interest. In this review we present the current view on which and how epigenetic modifications, emphasizing DNA methylation, regulate various tumor diseases. It is our aim to elucidate gender and epigenetics and their interconnectedness, which will contribute to understanding of the prospect molecular orchestration of cancer in individual tumors.
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Wang YH, Yin YW, Zhou H, Cao YD. miR-639 is associated with advanced cancer stages and promotes proliferation and migration of nasopharyngeal carcinoma. Oncol Lett 2018; 16:6903-6909. [PMID: 30546422 PMCID: PMC6256336 DOI: 10.3892/ol.2018.9512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/31/2017] [Indexed: 01/29/2023] Open
Abstract
Early detection of nasopharyngeal carcinoma (NPC) is of vital importance for improving prognosis and survival rates. MicroRNA (miRNA) are a class of short and non-coding RNA molecules that are capable of inhibiting the translation of mRNA of target genes. Previous studies have revealed that miRNA are involved in tumorigenesis and cancer development. The RNase-resistance of circulating miRNA have made them valuable non-invasive biomarkers, and has therefore drawn particular attention to their therapeutic potential. The aim of the present study was to investigate the expression of the previously uncharacterized miR-639 in NPC. In a study population of 139 patients, higher expression of miR-639 was associated with metastasis, more advanced cancer stages, and lower disease-free survival rates. In vitro experiments involving transfection of human NPC C666-1 and NPC/HK1 cell lines with miR-639 mimics and antagomir indicated that overexpressing miR-639 promoted cell proliferation and migration, suppression of miR-639 inhibited proliferation and migration. The present study provides evidence that miR-639 is differentially expressed in NPC tissues of varying cancer stages, and suggests that quantifying circulating miR-639 may be of importance for non-invasive diagnosis and prognostic evaluation, and may have potential therapeutic utility.
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Affiliation(s)
- Yun-Hui Wang
- Department of Ear, Nose and Throat, Linyi City People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Yan-Wei Yin
- Department of Oncology, Linyi City People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Han Zhou
- Department of Ear, Nose and Throat, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yuan-Dong Cao
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Zhang Y, Xu H, Mu J, Guo S, Ye L, Li D, Peng W, He X, Xiang T. Inactivation of ADAMTS18 by aberrant promoter hypermethylation contribute to lung cancer progression. J Cell Physiol 2018; 234:6965-6975. [PMID: 30417422 DOI: 10.1002/jcp.27439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 08/28/2018] [Indexed: 12/19/2022]
Abstract
Lung cancer is the most frequently diagnosed cancer worldwide. Epigenetic regulation contributes to lung cancer pathogenesis. The ADAMTS18 tumor suppressor gene is inactivated in some cancers, but its involvement in lung cancer has not been shown. Immunohistochemistry, quantitative reverse-transcription polymerase chain reaction (qRT-PCR), and methylation-specific PCR were used to assay ADAMTS18 expression and promoter methylation in lung tumor tissues and adjacent tissues. Cell viability, transwell, and wound-healing assays, as well as flow cytometry were used to characterize the biological activity of ADAMTS18. The influence of ADAMTS18 on protein expression was assayed using western blots analysis, and its effect on chemosensitivity was assayed by the response to cisplatin. We found that ADAMTS18 was silenced in lung cancer cells by promoter methylation. Demethylation by the DNA methyltransferase inhibitor 5-aza-2'-deoxycytidine, with or without the histone deacetylase inhibitor trichostatin A, restored ADAMTS18 expression. Compared with normal lung tissue, ADAMTS18 in lung tumors was frequently methylated. Overexpression of ADAMTS18 in lung cancer cells inhibited cell proliferation, migration, and invasiveness and induced G0/G1 cell cycle arrest. Furthermore, ADAMTS18 suppressed epidermal growth factor receptor/protein kinase B (EGFR/AKT) signaling, which sensitized lung cancer cells to cisplatin. Thus, our results demonstrated that the tumor suppressor gene ADAMTS18 was downregulated in lung cancer by promoter CpG methylation, and it promoted sensitivity to cisplatin via EGFR/AKT signaling. Our study suggests that ADAMTS18 promoter methylation is a potential epigenetic biomarker for early detection of lung cancer and warrants investigation as a therapeutic target for early-stage lung cancer.
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Affiliation(s)
- Yan Zhang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongying Xu
- Department of Respiratory Medicine, The Sixth People's Hospital of Chongqing, Chongqing, China
| | - Junhao Mu
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shuliang Guo
- Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lin Ye
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dairong Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Weiyan Peng
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoqian He
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tingxiu Xiang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Ooki A, Dinalankara W, Marchionni L, Tsay JCJ, Goparaju C, Maleki Z, Rom WN, Pass HI, Hoque MO. Epigenetically regulated PAX6 drives cancer cells toward a stem-like state via GLI-SOX2 signaling axis in lung adenocarcinoma. Oncogene 2018; 37:5967-5981. [PMID: 29980786 PMCID: PMC6226336 DOI: 10.1038/s41388-018-0373-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/09/2018] [Accepted: 05/26/2018] [Indexed: 12/25/2022]
Abstract
It remains unclear whether PAX6 acts as a crucial transcription factor for lung cancer stem cell (CSC) traits. We demonstrate that PAX6 acts as an oncogene responsible for induction of cancer stemness properties in lung adenocarcinoma (LUAD). Mechanistically, PAX6 promotes GLI transcription, resulting in SOX2 upregulation directly by the binding of GLI to the proximal promoter region of the SOX2 gene. The overexpressed SOX2 enhances the expression of key pluripotent factors (OCT4 and NANOG) and suppresses differentiation lineage factors (HOPX and NKX2-1), driving cancer cells toward a stem-like state. In contrast, in the differentiated non-CSCs, PAX6 is transcriptionally silenced by its promoter methylation. In human lung cancer tissues, the positive linear correlations of PAX6 expression with GLI and SOX2 expression and its negative correlations with HOPX and NKX2-1 expression were observed. Therapeutically, the blockade of the PAX6-GLI-SOX2 signaling axis elicits a long-lasting therapeutic efficacy by limiting CSC expansion following chemotherapy. Furthermore, a methylation panel including the PAX6 gene yielded a sensitivity of 79.1% and specificity of 83.3% for cancer detection using serum DNA from stage IA LUAD. Our findings provide a rationale for targeting the PAX6-GLI-SOX2 signaling axis with chemotherapy as an effective therapeutic strategy and support the clinical utility of PAX6 gene promoter methylation as a biomarker for early lung cancer detection.
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Affiliation(s)
- Akira Ooki
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Wikum Dinalankara
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Luigi Marchionni
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Jun-Chieh J Tsay
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, New York University School of Medicine, New York, NY, 10016, USA
| | - Chandra Goparaju
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Langone Medical Center, New York University of Medicine, New York, NY, 10016, USA
| | - Zahra Maleki
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - William N Rom
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, New York University School of Medicine, New York, NY, 10016, USA
| | - Harvey I Pass
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Langone Medical Center, New York University of Medicine, New York, NY, 10016, USA
| | - Mohammad O Hoque
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA.
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Konwar C, Price EM, Wang LQ, Wilson SL, Terry J, Robinson WP. DNA methylation profiling of acute chorioamnionitis-associated placentas and fetal membranes: insights into epigenetic variation in spontaneous preterm births. Epigenetics Chromatin 2018; 11:63. [PMID: 30373633 PMCID: PMC6205793 DOI: 10.1186/s13072-018-0234-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 10/20/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Placental inflammation, often presenting as acute chorioamnionitis (aCA), is commonly associated with preterm birth. Preterm birth can have both immediate and long-term adverse effects on the health of the baby. Developing biomarkers of inflammation in the placenta can help to understand its effects and potentially lead to new approaches for rapid prenatal diagnosis of aCA. We aimed to characterize epigenetic variation associated with aCA in placenta (chorionic villi) and fetal membranes (chorion and amnion) to better understand how aCA may impact processes that lead to preterm birth. This study lays the groundwork for development of novel biomarkers for aCA. METHODS Samples from 44 preterm placentas (chorionic villi) as well as matched chorion and amnion for 16 of these cases were collected for this study. These samples were profiled using the Illumina Infinium HumanMethylation850 BeadChip to measure DNA methylation (DNAm) at 866,895 CpGs across the genome. An additional 78 placental samples were utilized to independently validate the array findings by pyrosequencing. RESULTS Using a false discovery rate of < 0.15 and average group difference in DNAm of > 0.05, 66 differentially methylated (DM) CpG sites were identified between aCA cases and non-aCA cases in chorionic villi. For the majority of these 66 DM CpGs, the DNAm profile of the aCA cases as compared to the non-aCA cases trended in the direction of the blood cell DNAm. Interestingly, neutrophil-specific DNAm signatures, but not those associated with other immune cell types, were capable of separating aCA cases from the non-aCA cases. CONCLUSIONS Our results suggest that aCA-associated placentas showed altered DNAm signatures that were not observed in the absence of aCA. This DNAm profile is consistent with the activation of the innate immune response in the placenta and/or reflect increase in neutrophils as a response to inflammation.
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Affiliation(s)
- Chaini Konwar
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - E. Magda Price
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - Li Qing Wang
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - Samantha L. Wilson
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - Jefferson Terry
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Pathology, BC Children’s Hospital, Vancouver, BC V6H 3N1 Canada
| | - Wendy P. Robinson
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
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Zheng Y, Huang Q, Ding Z, Liu T, Xue C, Sang X, Gu J. Genome-wide DNA methylation analysis identifies candidate epigenetic markers and drivers of hepatocellular carcinoma. Brief Bioinform 2018; 19:101-108. [PMID: 27760737 DOI: 10.1093/bib/bbw094] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 02/06/2023] Open
Abstract
The alteration of DNA methylation landscape is a key epigenetic event in cancer. As the accumulation of large-scale genome-wide DNA methylation data from clinical samples, we are able to characterize the patterns of DNA methylation alterations for identifying candidate epigenetic markers and drivers. In this survey, we take hepatocellular carcinoma (HCC) as an example to show the basic steps of analyzing the DNA methylation patterns in cancer across multiple data sets. We collected three genome-wide DNA methylation data sets with ∼800 clinical samples and the corresponding gene expression data sets. First, by quantitatively analyzing two global methylation alterations, it is found that about 90% tumors acquire either genome-wide DNA hypo-methylation or CpG island methylator phenotype. Second, probe-level analysis identified 267, 228 and 197 hyper-methylated sites in promoter regions for the three data sets, respectively. These local hyper-methylated patterns are highly consistent: 84 sites (from 61 promoters) are hyper-methylated in all the three studied data sets, including many previously reported genes, such as CDKL2, TBX15 and NKX6-2. Then, these hyper-methylated sites were used as candidate markers to classify tumor and non-tumor samples. The classifiers based on only 10 selected probes can achieve high discriminative ability across different data sets. Finally, by integrative analyzing DNA methylation and gene expression data, we identified 222 candidate epigenetic drivers, which are enriched in inflammatory response and multiple metabolic pathways. A set of high-confidence candidates, including SFN, SPP1 and TKT, are significantly associated with patients' overall survivals. In summary, this study systematically characterized the DNA methylation alterations and their impacts on gene expressions in HCCs based on multiple data sets.
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Roointan A, Ahmad Mir T, Ibrahim Wani S, Mati-Ur-Rehman, Hussain KK, Ahmed B, Abrahim S, Savardashtaki A, Gandomani G, Gandomani M, Chinnappan R, Akhtar MH. Early detection of lung cancer biomarkers through biosensor technology: A review. J Pharm Biomed Anal 2018; 164:93-103. [PMID: 30366148 DOI: 10.1016/j.jpba.2018.10.017] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 10/05/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023]
Abstract
Lung cancer is undoubtedly one of the most serious health issues of the 21 st century. It is the second leading cause of cancer-related deaths in both men and women worldwide, accounting for about 1.5 million deaths annually. Despite advances in the treatment of lung cancer with new pharmaceutical products and technological improvements, morbidity and mortality rates remains a significant challenge for the cancer biologists and oncologists. The vast majority of lung cancer patients present with advanced-stage of pathological process that ultimately leads to poor prognosis and a five-year survival rate less than 20%. Early and accurate screening and analysis using cost-effective means are urgently needed to effectively diagnose the disease, improve the survival rate or to reduce mortality and morbidity associated with lung cancer patients. Thus, the only hope for early recognition of risk factors and timely diagnosis and treatment of lung cancer is biosensors technology. Novel biosensing based diagnostics approaches for predicting metastatic risks are likely to have significant therapeutic and clinical impact in the near future. This article systematically provides a brief overview of various biosensing platforms for identification of lung cancer disease biomarkers, with a specific focus on recent advancements in electrochemical and optical biosensors, analytical performances of different biosensors, challenges and further research opportunities for routine clinical analysis.
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Affiliation(s)
- Amir Roointan
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tanveer Ahmad Mir
- Division of Biomedical System Engineering, Graduate School of Science and Engineering for Education, University of Toyama, Toyama, Japan; Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST), Pusan National University, Busan, 46241, South Korea; Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia; Toyama Nanotechnology Manufacturing Cluster, Toyama, Japan.
| | - Shadil Ibrahim Wani
- Department of Immunology and Molecular Medicine,Sher-i-Kashmir Institute of Medical Sciences, Srinagar, India
| | - Mati-Ur-Rehman
- Department of Radiological Sciences, Graduate school of Medicine and Pharmaceutical Sciences, University of Toyama, Japan
| | - Khalil Khadim Hussain
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST), Pusan National University, Busan, 46241, South Korea; Department of pharmacy, University of central Punjab 1-Khayaban-e-Jinnah, Johar Town, Lahore, Pakistan
| | - Bilal Ahmed
- Department of Intellectual Information Engineering, Graduate School of Science and Engineering for Education, University of Toyama, Toyama, Japan
| | - Shugufta Abrahim
- Department of Intellectual Information Engineering, Graduate School of Science and Engineering for Education, University of Toyama, Toyama, Japan
| | - Amir Savardashtaki
- Department of Environmental Sciences, Cyprus International University, Nicosia, Cyprus
| | - Ghazaal Gandomani
- Department of Bioengineering, Biotechnology Research Center, Cyprus International University, Nicosia, Cyprus
| | - Molood Gandomani
- Department of pharmacy, University of central Punjab 1-Khayaban-e-Jinnah, Johar Town, Lahore, Pakistan
| | - Raja Chinnappan
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia
| | - Mahmood H Akhtar
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST), Pusan National University, Busan, 46241, South Korea
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Sharma B, Kanwar SS. Phosphatidylserine: A cancer cell targeting biomarker. Semin Cancer Biol 2018; 52:17-25. [DOI: 10.1016/j.semcancer.2017.08.012] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/12/2017] [Accepted: 08/30/2017] [Indexed: 12/11/2022]
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O’Keefe CM, Pisanic TR, Zec H, Overman MJ, Herman JG, Wang TH. Facile profiling of molecular heterogeneity by microfluidic digital melt. SCIENCE ADVANCES 2018; 4:eaat6459. [PMID: 30263958 PMCID: PMC6157960 DOI: 10.1126/sciadv.aat6459] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 08/14/2018] [Indexed: 05/05/2023]
Abstract
This work presents a digital microfluidic platform called HYPER-Melt (high-density profiling and enumeration by melt) for highly parallelized copy-by-copy DNA molecular profiling. HYPER-Melt provides a facile means of detecting and assessing sequence variations of thousands of individual DNA molecules through digitization in a nanowell microchip array, allowing amplification and interrogation of individual template molecules by detecting HRM fluorescence changes due to sequence-dependent denaturation. As a model application, HYPER-Melt is used here for the detection and assessment of intermolecular heterogeneity of DNA methylation within the promoters of classical tumor suppressor genes. The capabilities of this platform are validated through serial dilutions of mixed epialleles, with demonstrated detection limits as low as 1 methylated variant in 2 million unmethylated templates (0.00005%) of a classic tumor suppressor gene, CDKN2A (p14ARF). The clinical potential of the platform is demonstrated using a digital assay for NDRG4, a tumor suppressor gene that is commonly methylated in colorectal cancer, in liquid biopsies of healthy and colorectal cancer patients. Overall, the platform provides the depth of information, simplicity of use, and single-molecule sensitivity necessary for rapid assessment of intermolecular variation contributing to genetic and epigenetic heterogeneity for challenging applications in embryogenesis, carcinogenesis, and rare biomarker detection.
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Affiliation(s)
- Christine M. O’Keefe
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21218, USA
| | - Thomas R. Pisanic
- Johns Hopkins Institute for NanoBioTechnology, Baltimore, MD 21218, USA
| | - Helena Zec
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21218, USA
| | - Michael J. Overman
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - James G. Herman
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA
| | - Tza-Huei Wang
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21218, USA
- Johns Hopkins Institute for NanoBioTechnology, Baltimore, MD 21218, USA
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Corresponding author.
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Leng S, Diergaarde B, Picchi MA, Wilson DO, Gilliland FD, Yuan JM, Siegfried JM, Belinsky SA. Gene Promoter Hypermethylation Detected in Sputum Predicts FEV 1 Decline and All-Cause Mortality in Smokers. Am J Respir Crit Care Med 2018; 198:187-196. [PMID: 29437466 PMCID: PMC6058990 DOI: 10.1164/rccm.201708-1659oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 02/12/2018] [Indexed: 02/07/2023] Open
Abstract
RATIONALE Gene promoter hypermethylation detected in sputum assesses the extent of field cancerization and predicts lung cancer (LC) risk in ever-smokers. A rapid decline of FEV1 is a major driver for development of airway obstruction. OBJECTIVES To assess the effects of methylation of 12 genes on FEV1 decline and of FEV1 decline on subsequent LC incidence using two independent, longitudinal cohorts (i.e., LSC [Lovelace Smokers Cohort] and PLuSS [Pittsburgh Lung Screening Study]). METHODS Gene methylation was measured in sputum using two-stage nested methylation-specific PCR. The linear mixed effects model was used to assess the effects of studied variables on FEV1 decline. MEASUREMENTS AND MAIN RESULTS A dose-dependent relationship between number of genes methylated and FEV1 decline was identified, with smokers with three or more methylated genes having 27.8% and 10.3% faster FEV1 decline than smokers with zero to two methylated genes in the LSC and PLuSS cohort, respectively (all P < 0.01). High methylation in sputum was associated with a shorter latency for LC incidence (log-rank P = 0.0048) and worse all-cause mortality (log-rank P < 0.0001). Smokers with subsequent LC incidence had a more rapid annual decline of FEV1 (by 5.2 ml, P = 0.038) than smoker control subjects. CONCLUSIONS Gene methylation detected in sputum predicted FEV1 decline, LC incidence, and all-cause mortality in smokers. Rapid FEV1 decline may be a risk factor for LC incidence in smokers, which may explain a greater prevalence of airway obstruction seen in patients with LC.
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Affiliation(s)
- Shuguang Leng
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
- Cancer Control Research Program and
- School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Brenda Diergaarde
- Department of Human Genetics and
- Cancer Epidemiology and Prevention Program
- Lung Cancer Program, and
| | - Maria A. Picchi
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - David O. Wilson
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Frank D. Gilliland
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and
| | - Jian-Min Yuan
- Department of Epidemiology, Graduate School of Public Health, and
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | | | - Steven A. Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
- Cancer Control Research Program and
- Cancer Genetics and Epigenetics Program, University of New Mexico Comprehensive Cancer Center, Albuquerque, New Mexico
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Billatos E, Vick JL, Lenburg ME, Spira AE. The Airway Transcriptome as a Biomarker for Early Lung Cancer Detection. Clin Cancer Res 2018; 24:2984-2992. [PMID: 29463557 PMCID: PMC7397497 DOI: 10.1158/1078-0432.ccr-16-3187] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/06/2017] [Accepted: 02/16/2018] [Indexed: 12/17/2022]
Abstract
Lung cancer remains the leading cause of cancer-related death due to its advanced stage at diagnosis. Early detection of lung cancer can be improved by better defining who should be screened radiographically and determining which imaging-detected pulmonary nodules are malignant. Gene expression biomarkers measured in normal-appearing airway epithelium provide an opportunity to use lung cancer-associated molecular changes in this tissue for early detection of lung cancer. Molecular changes in the airway may result from an etiologic field of injury and/or field cancerization. The etiologic field of injury reflects the aberrant physiologic response to carcinogen exposure that creates a susceptible microenvironment for cancer initiation. In contrast, field cancerization reflects effects of "first-hit" mutations in a clone of cells from which the tumor ultimately arises or the effects of the tumor on the surrounding tissue. These fields might have value both for assessing lung cancer risk and diagnosis. Cancer-associated gene expression changes in the bronchial airway have recently been used to develop and validate a 23-gene classifier that improves the diagnostic yield of bronchoscopy for lung cancer among intermediate-risk patients. Recent studies have demonstrated that these lung cancer-related gene expression changes extend to nasal epithelial cells that can be sampled noninvasively. While the bronchial gene expression biomarker is being adopted clinically, further work is necessary to explore the potential clinical utility of gene expression profiling in the nasal epithelium for lung cancer diagnosis, lung cancer risk assessment, and precision medicine for lung cancer treatment and chemoprevention. Clin Cancer Res; 24(13); 2984-92. ©2018 AACR.
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Affiliation(s)
- Ehab Billatos
- Section of Computational Biomedicine, Department of Medicine and BU-BMC Cancer Center, Boston University, Boston, Massachusetts
| | - Jessica L Vick
- Section of Computational Biomedicine, Department of Medicine and BU-BMC Cancer Center, Boston University, Boston, Massachusetts
| | - Marc E Lenburg
- Section of Computational Biomedicine, Department of Medicine and BU-BMC Cancer Center, Boston University, Boston, Massachusetts
| | - Avrum E Spira
- Section of Computational Biomedicine, Department of Medicine and BU-BMC Cancer Center, Boston University, Boston, Massachusetts.
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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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74
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Su Y, Fang HB, Jiang F. An epigenetic classifier for early stage lung cancer. Clin Epigenetics 2018; 10:68. [PMID: 29796119 PMCID: PMC5964676 DOI: 10.1186/s13148-018-0502-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/14/2018] [Indexed: 12/19/2022] Open
Abstract
Background Methylated genes detected in sputum are promise biomarkers for lung cancer. Yet the current PCR technologies for quantification of DNA methylation and diagnostic value of the sputum biomarkers are not sufficient to be used for lung cancer early detection. The emerging droplet digital PCR (ddPCR) is a straightforward means for precise, direct, and absolute quantification of nucleic acids. Here, we investigate whether ddPCR can sensitively and robustly quantify DNA methylation in sputum for more precise diagnosis of lung cancer. Results First, the analytic performance of methylation-specific ddPCR (ddMSP) and quantitative methylation-specific PCR (qMSP) is determined in methylated and unmethylated DNA samples. Second, 29 genes, previously proposed as potential sputum biomarkers for lung cancer, are analyzed by using ddMSP in a training set of 127 lung cancer patients and 159 controls. ddMSP has higher sensitivity, precision, and reproducibility for quantification of methylation compared with qMSP (all p < 0.05). A classifier comprising four sputum methylation biomarkers for lung cancer is developed by using ddMSP, producing 86.6% sensitivity and 90.6% specificity, independent of stage and histology of lung cancer (all p > 0.05). The classifier has higher accuracy compared with sputum cytology (88.8 vs. 70.6%, p < 0.01). The diagnostic performance is confirmed in a testing set of 89 cases and 107 controls. Conclusions ddMSP is a robust tool for reliable quantification of DNA methylation in sputum, and the epigenetic classifier could help diagnose lung cancer at the early stage.
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Affiliation(s)
- Yun Su
- 1Department of Surgery, Jiangsu Province Hospital of Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023 China
| | - Hong Bin Fang
- 2Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University Medical Center, 4000 Reservoir Road, N.W, Washington D.C., 20057 USA
| | - Feng Jiang
- 3Department of Pathology, University of Maryland School of Medicine, Baltimore, MD USA
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75
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Guo RQ, Xiong GY, Yang KW, Zhang L, He SM, Gong YQ, He Q, Li XY, Wang ZC, Bao ZQ, Li XS, Zhang K, Zhou LQ. Detection of urothelial carcinoma, upper tract urothelial carcinoma, bladder carcinoma, and urothelial carcinoma with gross hematuria using selected urine-DNA methylation biomarkers: A prospective, single-center study. Urol Oncol 2018; 36:342.e15-342.e23. [PMID: 29706459 DOI: 10.1016/j.urolonc.2018.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/20/2018] [Accepted: 04/03/2018] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Hematuria is the most common symptom of urothelial carcinomas (UC) but is often idiopathic. Cystoscopy is expensive which involves considerable patient discomfort, and conventional urine cytology for noninvasive UC detection and disease monitoring suffers from poor sensitivity. We aim to evaluate the performance of genes selected from a previous study in detecting UC, especially among patients with gross hematuria, as well as upper tract urothelial carcinoma (UTUC) and bladder carcinoma separately, in voided urine samples. METHODS Using methylation-specific polymerase chain reaction, we examined the promoter methylation status of 10 genes in voided urine samples among 473 patients at our institution, including 217 UC patients and 256 control subjects. RESULTS The final combination of VIM, CDH1, SALL3, TMEFF2, RASSF1A, BRCA1, GDF15, and ABCC6 identified UC with a sensitivity of 0.83 and a specificity of 0.60. Additionally, a panel of selected genes (CDH1, HSPA2, RASSF1A, TMEFF2, VIM, and GDF15) identified UTUC with a sensitivity of 0.82 and a specificity of 0.68, while a panel of selected genes (VIM, RASSF1A, GDF15, and TMEFF2) identified bladder carcinoma with a sensitivity of 0.82 and a specificity of 0.53. Remarkably, a different panel (CDH1, SALL3, THBS1, TMEFF2, VIM, and GDF15) identified UC in patients with gross hematuria with 0.89 sensitivity and 0.74 specificity, and sensitivity (0.91) and specificity (0.92) could be achieved when cytology was included. CONCLUSIONS The selected urine-DNA methylation biomarkers are reliable, noninvasive, and cost-effective diagnostic tools for bladder carcinoma and UTUC, especially among patients with gross hematuria.
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Affiliation(s)
- Run-Qi Guo
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Geng-Yan Xiong
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Kai-Wei Yang
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Lei Zhang
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Shi-Ming He
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Yan-Qing Gong
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Qun He
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Xue-Ying Li
- Department of Medical Statistics, Peking University First Hospital, Beijing, China
| | - Zi-Cheng Wang
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Zhen-Qing Bao
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China
| | - Xue-Song Li
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China.
| | - Kai Zhang
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China.
| | - Li-Qun Zhou
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Research Center for Genitourinary Oncology, Beijing, China.
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76
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Tshering G, Dorji PW, Chaijaroenkul W, Na-Bangchang K. Biomarkers for the Diagnosis of Cholangiocarcinoma: A Systematic Review. Am J Trop Med Hyg 2018; 98:1788-1797. [PMID: 29637880 DOI: 10.4269/ajtmh.17-0879] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cholangiocarcinoma (CCA), a malignant tumor of the bile duct, is a major public health problem in many Southeast Asian countries, particularly Thailand. The slow progression makes it difficult for early diagnosis and most patients are detected in advanced stages. This study aimed to review all relevant articles related to the biomarkers for the diagnosis of CCA and point out potential biomarkers. A thorough search was performed in PubMed and ScienceDirect for CCA biomarker articles. Required data were extracted. A total of 46 articles that fulfilled the inclusion and had none of the exclusion criteria were included in the analysis (17, 22, 3, 4, and 1 articles on blood, tissue, bile, both blood and tissue, and urine biomarkers, respectively). Carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA), either alone or in combination with other biomarkers, are the most commonly studied biomarkers in the serum. Their sensitivity and specificity ranged from 47.2% to 98.2% and 89.7% to 100%, respectively. However, in the tissue, gene methylations and DNA-related markers were the most studied CCA biomarkers. Their sensitivity and specificity ranged from 58% to 87% and 98% to 100%, respectively. Some articles investigated biomarkers both in blood and tissues, particularly CA19-9 and CEA, with sensitivity and specificity ranging from 33% to 100% and 50% to 97.7%, respectively. Although quite a number of biomarkers with a potential role in the early detection of CCA have been established, it is difficult to single out any particular marker that could be used in the routine clinical settings.
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Affiliation(s)
- Gyem Tshering
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Palden Wangyel Dorji
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Wanna Chaijaroenkul
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Kesara Na-Bangchang
- Center of Excellence in Pharmacology and Molecular Biology of Malaria and Cholangiocarcinoma, Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand.,Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
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77
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Liu S, Chen X, Chen R, Wang J, Zhu G, Jiang J, Wang H, Duan S, Huang J. Diagnostic role of Wnt pathway gene promoter methylation in non small cell lung cancer. Oncotarget 2018; 8:36354-36367. [PMID: 28422739 PMCID: PMC5482660 DOI: 10.18632/oncotarget.16754] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/21/2017] [Indexed: 12/14/2022] Open
Abstract
Wnt signal pathway genes are known to be involved with cancer development. Here we tested the hypothesis whether DNA methylation of genes part of the Wnt signaling pathway could help the diagnosis of non-small cell lung cancer (NSCLC). The methylation levels of SFRP1, SFRP2, WIF1 and PRKCB in 111 NSCLC patients were evaluated by quantitative methylation-specific PCR (qMSP). Promoter methylation levels of four candidate genes were significantly higher in tumor tissues compared with the adjacent tissues. SFRP1, SFRP2 and PRKCB genes were all shown to be good predictors of NSCLC risk (SFRP1: AUC = 0.711; SFRP2: AUC = 0.631; PRKCB: AUC = 0.650). The combined analysis showed that the methylation status of the four genes had a sensitivity of 70.3% and a specificity of 73.9% in the prediction of NSCLC risk for study cohort. A higher diagnostic value with an AUC of 0.945 (95% CI: 0.923–0.967, sensitivity: 90.6%, specificity: 93.0%) was found in TCGA cohort. In addition, SFRP1 and SFRP2 hypermethylation events were specific to male patients. Further TCGA data mining analysis suggested that SFRP1_cg15839448, SFRP2_cg05774801, and WIF1_cg21383810 were inversely associated with the host gene expression. Moreover, GEO database analysis showed that 5′-Aza-deoxycytidine was able to upregulate gene expression in several lung cancer cell lines. Subsequent dual-luciferase reporter assay showed a crucial regulatory function of PRKCB promoter. In summary, our study showed that a panel of Wnt signal pathway genes (SFRP1, SFRP2, WIF1 and PRKCB) had the potential as methylation biomarkers in the diagnosis of NSCLC.
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Affiliation(s)
- Shunlin Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Xiaoying Chen
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Ruhua Chen
- Department of Respiratory Medicine, Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu 214200, China
| | - Jinzhi Wang
- Department of Cell Biology, School of Medicine, Soochow University, Suzhou, Jiangsu 215007, China
| | - Guoliang Zhu
- Department of Pathology, Huzhou First People's Hospital, Huzhou, Zhejiang 313000, China
| | - Jianzhong Jiang
- Department of Geriatrics, Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu 214200, China
| | - Hongwei Wang
- Realgen Biotechnology Co., Ltd. Zhangjiang High Technology Park, Shanghai 201203, China
| | - Shiwei Duan
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jianan Huang
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
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78
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Jiang CL, He SW, Zhang YD, Duan HX, Huang T, Huang YC, Li GF, Wang P, Ma LJ, Zhou GB, Cao Y. Air pollution and DNA methylation alterations in lung cancer: A systematic and comparative study. Oncotarget 2018; 8:1369-1391. [PMID: 27901495 PMCID: PMC5352062 DOI: 10.18632/oncotarget.13622] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 11/09/2016] [Indexed: 12/20/2022] Open
Abstract
The lung cancer incidence in the Xuanwei and neighboring region, Yunnan, China, is among the highest in China and is attributed to severe air pollution with high benzo(a)pyrene levels. We systematically and comparatively analyzed DNA methylation alterations at genome and gene levels in Xuanwei lung cancer tissues and cell lines, as well as benzo(a)pyrene-treated cells and mouse samples. We obtained a comprehensive dataset of genome-wide cytosine-phosphate-guanine island methylation in air pollution-related lung cancer samples. Benzo(a)pyrene exposure induced multiple alterations in DNA methylation and in mRNA expressions of DNA methyltransferases and ten-11 translocation proteins; these alterations partially occurred in Xuanwei lung cancer. Furthermore, benzo(a)pyrene-induced DKK2 and EN1 promoter hypermethylation and LPAR2 promoter hypomethylation led to down-regulation and up-regulation of the genes, respectively; the down-regulation of DKK2 and EN1 promoted the cellular proliferation. Thus, DNA methylation alterations induced by benzo(a)pyrene contribute partially to abnormal DNA methylation in air pollution-related lung cancer, and these DNA methylation alterations may affect the development and progression of lung cancer. Additionally, vitamin C and B6 can reduce benzo(a)pyrene-induced DNA methylation alterations and may be used as chemopreventive agents for air pollution-related lung cancer.
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Affiliation(s)
- Cheng-Lan Jiang
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,Kunming College of Life Sciences, University of Chinese Academy of Sciences, Kunming 650223, China
| | - Shui-Wang He
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yun-Dong Zhang
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,School of Life Sciences, University of Science and Technology of China, Hefei 230026, China
| | - He-Xian Duan
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Tao Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yun-Chao Huang
- Department of Thoracic and Cardiovascular Surgery, The Third Affiliated Hospital of Kunming Medical University, (Yunnan Tumor Hospital), Kunming 650106, China
| | - Gao-Feng Li
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, (Yunnan Tumor Hospital), Kunming 650106, China
| | - Ping Wang
- Department of Thoracic Surgery, The First People's Hospital of Yunnan Province, Kunming 650032, China
| | - Li-Ju Ma
- Clinical Medicine Research Center, The First Affiliated Hospital of Kunming Medical University, Kunming 650332, China
| | - Guang-Biao Zhou
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Cao
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
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79
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Kim H, Wang X, Jin P. Developing DNA methylation-based diagnostic biomarkers. J Genet Genomics 2018; 45:87-97. [PMID: 29496486 DOI: 10.1016/j.jgg.2018.02.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 01/29/2018] [Accepted: 02/12/2018] [Indexed: 02/06/2023]
Abstract
An emerging paradigm shift for disease diagnosis is to rely on molecular characterization beyond traditional clinical and symptom-based examinations. Although genetic alterations and transcription signature were first introduced as potential biomarkers, clinical implementations of these markers are limited due to low reproducibility and accuracy. Instead, epigenetic changes are considered as an alternative approach to disease diagnosis. Complex epigenetic regulation is required for normal biological functions and it has been shown that distinctive epigenetic disruptions could contribute to disease pathogenesis. Disease-specific epigenetic changes, especially DNA methylation, have been observed, suggesting its potential as disease biomarkers for diagnosis. In addition to specificity, the feasibility of detecting disease-associated methylation marks in the biological specimens collected noninvasively, such as blood samples, has driven the clinical studies to validate disease-specific DNA methylation changes as a diagnostic biomarker. Here, we highlight the advantages of DNA methylation signature for diagnosis in different diseases and discuss the statistical and technical challenges to be overcome before clinical implementation.
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Affiliation(s)
- Hyerim Kim
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Xudong Wang
- Department of Gastroenterological Surgery, The Second Hospital, Jilin University, Changchun 130041, China.
| | - Peng Jin
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA 30322, USA.
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80
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Abstract
Lung cancer is the leading cause of cancer-related deaths in the world. Despite significant advances in the early detection and treatment of the disease, the prognosis remains poor, with an overall 5-year survival rate ranging from 15% to 20%. This poor prognosis results largely from early micrometastatic spread of cancer cells to nearby lymph nodes or tissues and partially from early recurrence after curative surgical resection. Recently, precision medicines that target potential oncogenic driver mutations have been approved to treat lung cancer. However, some lung cancer patients do not have targetable mutations, and many patients develop resistance to targeted therapy. Tumor heterogeneity and mutational density are also challenges in treating lung cancer, which underscores the need for developing alternative therapeutic strategies for treating lung cancer. Epigenetic therapy may circumvent the problems of tumor heterogeneity and drug resistance by affecting the expression of several hundred target genes. This review highlights precision medicine using an innovative approach of epigenetic priming prior to conventional standard therapy or targeted cancer therapy in lung cancer.
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Affiliation(s)
- Dongho Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Duk-Hwan Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, South Korea. .,Samsung Medical Center, Research Institute for Future Medicine, Seoul, South Korea.
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81
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Affiliation(s)
- Alicia Hulbert
- Department of Surgery & Cancer Center, University of Illinois at Chicago, Chicago, IL, USA
| | - Ignacio Jusue-Torres
- Department of Neurological Surgery, Loyola University Medical Center, Stritch School of Medicine, Maywood, IL, USA
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82
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Trollope AF, Mifsud KR, Saunderson EA, Reul JMHM. Molecular and Epigenetic Mechanisms Underlying Cognitive and Adaptive Responses to Stress. EPIGENOMES 2017; 1:17. [PMID: 31921466 PMCID: PMC6952278 DOI: 10.3390/epigenomes1030017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Consolidation of contextual memories after a stressful encounter is essential for the survival of an organism and in allowing a more appropriate response to be elicited should the perceived threat reoccur. Recent evidence has explored the complex role that epigenetic mechanisms play in the formation of such memories, and the underlying signaling pathways are becoming more apparent. The glucocorticoid receptor (GR) has been shown to play a key role in these events having both genomic and non-genomic actions in the brain. GR has been shown to interact with the extracellular signal-regulated kinase mitogen-activated protein kinase (ERK MAPK) signaling pathway which, in concert, drives epigenetic modifications and chromatin remodeling, resulting in gene induction and memory consolidation. Evidence indicates that stressful events can have an effect on the offspring in utero, and that epigenetic marks altered early in life may persist into adulthood. A new and controversial area of research, however, suggests that epigenetic modifications could be inherited through the germline, a concept known as transgenerational epigenetics. This review explores the role that epigenetic processes play in the central nervous system, specifically in the consolidation of stress-induced memories, the concept of transgenerational epigenetic inheritance, and the potential role of epigenetics in revolutionizing the treatment of stress-related disorders through the emerging field of pharmacoepigenetics and personalized medical treatment.
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Affiliation(s)
- Alexandra F. Trollope
- Neuro-Epigenetics Research Group, Bristol Medical School, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK
- Department of Anatomy, College of Medicine and Dentistry, James Cook University, Townsville 4811, Australia
| | - Karen R. Mifsud
- Neuro-Epigenetics Research Group, Bristol Medical School, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK
| | - Emily A. Saunderson
- Neuro-Epigenetics Research Group, Bristol Medical School, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK
- Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Johannes M. H. M. Reul
- Neuro-Epigenetics Research Group, Bristol Medical School, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK
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83
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Ooki A, Maleki Z, Tsay JCJ, Goparaju C, Brait M, Turaga N, Nam HS, Rom WN, Pass HI, Sidransky D, Guerrero-Preston R, Hoque MO. A Panel of Novel Detection and Prognostic Methylated DNA Markers in Primary Non-Small Cell Lung Cancer and Serum DNA. Clin Cancer Res 2017; 23:7141-7152. [PMID: 28855354 DOI: 10.1158/1078-0432.ccr-17-1222] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/26/2017] [Accepted: 08/23/2017] [Indexed: 11/16/2022]
Abstract
Purpose: To establish a novel panel of cancer-specific methylated genes for cancer detection and prognostic stratification of early-stage non-small cell lung cancer (NSCLC).Experimental Design: Identification of differentially methylated regions (DMR) was performed with bumphunter on "The Cancer Genome Atlas (TCGA)" dataset, and clinical utility was assessed using quantitative methylation-specific PCR assay in multiple sets of primary NSCLC and body fluids that included serum, pleural effusion, and ascites samples.Results: A methylation panel of 6 genes (CDO1, HOXA9, AJAP1, PTGDR, UNCX, and MARCH11) was selected from TCGA dataset. Promoter methylation of the gene panel was detected in 92.2% (83/90) of the training cohort with a specificity of 72.0% (18/25) and in 93.0% (40/43) of an independent cohort of stage IA primary NSCLC. In serum samples from the later 43 stage IA subjects and population-matched 42 control subjects, the gene panel yielded a sensitivity of 72.1% (31/41) and specificity of 71.4% (30/42). Similar diagnostic accuracy was observed in pleural effusion and ascites samples. A prognostic risk category based on the methylation status of CDO1, HOXA9, PTGDR, and AJAP1 refined the risk stratification for outcomes as an independent prognostic factor for an early-stage disease. Moreover, the paralog group for HOXA9, predominantly overexpressed in subjects with HOXA9 methylation, showed poor outcomes.Conclusions: Promoter methylation of a panel of 6 genes has potential for use as a biomarker for early cancer detection and to predict prognosis at the time of diagnosis. Clin Cancer Res; 23(22); 7141-52. ©2017 AACR.
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Affiliation(s)
- Akira Ooki
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Zahra Maleki
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Jun-Chieh J Tsay
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, New York University School of Medicine, New York, New York
| | - Chandra Goparaju
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Langone Medical Center, New York University of Medicine, New York, New York
| | - Mariana Brait
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Nitesh Turaga
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Hae-Seong Nam
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland.,Division of Pulmonology, Department of Internal Medicine, Inha University School of Medicine, Incheon, South Korea
| | - William N Rom
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, New York University School of Medicine, New York, New York
| | - Harvey I Pass
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Langone Medical Center, New York University of Medicine, New York, New York
| | - David Sidransky
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Rafael Guerrero-Preston
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland. .,Department of Oncology, Johns Hopkins University, Baltimore, Maryland.,Department of Obstetrics and Gynecology, University of Puerto Rico, San Juan, Puerto Rico
| | - Mohammad Obaidul Hoque
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland. .,Department of Oncology, Johns Hopkins University, Baltimore, Maryland.,Department of Urology, Johns Hopkins University, Baltimore, Maryland
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84
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Leng S, Picchi MA, Kang H, Wu G, Filipczak PT, Juri DE, Zhang X, Gauderman WJ, Gilliland FD, Belinsky SA. Dietary Nutrient Intake, Ethnicity, and Epigenetic Silencing of Lung Cancer Genes Detected in Sputum in New Mexican Smokers. Cancer Prev Res (Phila) 2017; 11:93-102. [PMID: 29118161 DOI: 10.1158/1940-6207.capr-17-0196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/19/2017] [Accepted: 10/30/2017] [Indexed: 12/17/2022]
Abstract
Lung cancer gene methylation detected in sputum assesses field cancerization and predicts lung cancer incidence. Hispanic smokers have higher lung cancer susceptibility compared with non-Hispanic whites (NHW). We aimed to identify novel dietary nutrients affecting lung cancer gene methylation and determine the degree of ethnic disparity in methylation explained by diet. Dietary intakes of 139 nutrients were assessed using a validated Harvard food frequency questionnaire in 327 Hispanics and 1,502 NHWs from the Lovelace Smokers Cohort. Promoter methylation of 12 lung cancer genes was assessed in sputum DNA. A global association was identified between dietary intake and gene methylation (Ppermutation = 0.003). Seventeen nutrient measurements were identified with magnitude of association with methylation greater than that seen for folate. A stepwise approach identified B12, manganese, sodium, and saturated fat as the minimally correlated set of nutrients whose optimal intakes could reduce the methylation by 36% (Ppermutation < 0.001). Six protective nutrients included vitamin D, B12, manganese, magnesium, niacin, and folate. Approximately 42% of ethnic disparity in methylation was explained by insufficient intake of protective nutrients in Hispanics compared with NHWs. Functional validation of protective nutrients showed an enhanced DNA repair capacity toward double-strand DNA breaks, a mechanistic biomarker strongly linked to acquisition of lung cancer gene methylation in smokers. Dietary intake is a major modifiable factor for preventing promoter methylation of lung cancer genes in smokers' lungs. Complex dietary supplements could be developed on the basis of these protective nutrients for lung cancer chemoprevention in smokers. Hispanic smokers may benefit the most from this complex for reducing their lung cancer susceptibility. Cancer Prev Res; 11(2); 93-102. ©2017 AACR.
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Affiliation(s)
- Shuguang Leng
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico. .,Cancer Control (CaC) Research Program, University of New Mexico Cancer Center, Albuquerque, New Mexico
| | - Maria A Picchi
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Huining Kang
- Department of Internal Medicine and UNM Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Guodong Wu
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Piotr T Filipczak
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Daniel E Juri
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Xiequn Zhang
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - W James Gauderman
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Frank D Gilliland
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico. .,Cancer Control (CaC) Research Program, University of New Mexico Cancer Center, Albuquerque, New Mexico
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85
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Lin RK, Hung WY, Huang YF, Chang YJ, Lin CH, Chen WY, Chiu SF, Chang SC, Tsai SF. Hypermethylation of BEND5 contributes to cell proliferation and is a prognostic marker of colorectal cancer. Oncotarget 2017; 8:113431-113443. [PMID: 29371920 PMCID: PMC5768337 DOI: 10.18632/oncotarget.22266] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 05/10/2017] [Indexed: 01/05/2023] Open
Abstract
Aberrant hypermethylation of CpG islands in tumor suppressor genes (TSGs) contributes to colorectal tumorigenesis. To identify new colorectal cancer (CRC) screening marker, we investigated DNA methylation alterations in novel TSGs. Using HumanMethylation450 BeadChip arrays, CpG regions in BEND5 were the most highly methylated among all genomic regions in 26 colorectal tumors compared to paired non-neoplastic tissues from a Taiwan cohort. Therefore, BEND5 was selected for further analysis. Quantitative methylation-specific real-time PCR revealed that 86.7% (117/135) of CRC patients exhibited hypermethylated BEND5. Real-time reverse transcription PCR identified that BEND5 mRNA expression was downregulated in 68% (32/47) of the analyzed samples. BEND5 hypermethylation was associated with poor overall survival (OS) in Taiwan patients with early-stage CRC (P = 0.037). In a CRC tissue set from South Korea, OS was higher in patients with high BEND5 protein expression than in those with low BEND5 protein expression (P = 0.037) by using immunohistochemistry assays. Consistently, BEND5 hypermethylation was associated with poor OS in patients with early-stage CRC in The Cancer Genome Atlas (TCGA) data set (P = 0.003). Multivariate Cox proportional hazards regression analysis further supported that hypermethylation of BEND5 genes was significantly associated with OS in Taiwan and TCGA CRC patients (P = 0.023 and 0.033, respectively). Finally, the cell model assay with transient transfection of BEND5 or si-BEND5 knockdown indicated that BEND5 inhibited cancer cell proliferation. In conclusion, epigenetic alteration in the candidate TSG BEND5 contributes to colorectal cancer development and is a prognostic marker of CRC.
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Affiliation(s)
- Ruo-Kai Lin
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan, R.O.C.,Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, Taipei Medical University, Taipei, Taiwan, R.O.C.,PH.D Program for Clinical Drug Development of Chinese Herbal Medicine, Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Wan-Yu Hung
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Yu-Fang Huang
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Yu-Jia Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Chien-Hsing Lin
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Wei-Yu Chen
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C.,Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Shih-Feng Chiu
- Professional Master Program in Pharmaceutics and Biotechnology, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Shih-Ching Chang
- Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C
| | - Shih-Feng Tsai
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli, Taiwan
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86
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Liu T, Wu X, Chen T, Luo Z, Hu X. Downregulation of DNMT3A by miR-708-5p Inhibits Lung Cancer Stem Cell-like Phenotypes through Repressing Wnt/β-catenin Signaling. Clin Cancer Res 2017; 24:1748-1760. [PMID: 28972040 DOI: 10.1158/1078-0432.ccr-17-1169] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 08/14/2017] [Accepted: 09/21/2017] [Indexed: 11/16/2022]
Abstract
Purpose: Lung cancer is the leading cause of cancer-related death in the world, and emerging evidences suggest that lung cancer stem cells (CSC) are associated with its poor prognosis, tumor recurrence, and therapy resistance. Here we reveal a novel role for miR-708-5p in inhibiting lung CSC-like features.Experimental Design: Phenotypic effects of miR-708-5p on the lung CSC-like properties were examined by in vitro sphere formation assay and in xenografted animal models. Immunoblotting, dual luciferase reporter, and immunocytochemistry were performed to determine the target of miR-708-5p. DNA methylation of CDH1 promoter region was tested using bisulfate sequencing. Genome-wide miRNA sequencing data of 990 patients from The Cancer Genome Atlas (TCGA) dataset and 148 patients from China cohort were analyzed to excavate the pathogenic implications of miR-708-5p.Results: Expression of miR-708-5p inhibits the CSC traits of NSCLC cells in vitro while antagonizing miR-708-5p promotes tumorigenesis in vivo miR-708-5p directly suppresses the translation of DNMT3A, which results in a substantial reduction of global DNA methylation and the upregulated expression of tumor suppressor CDH1. The upregulation of CDH1 decreased the activity of Wnt/β-catenin signaling and then impaired the stemness characteristics of NSCLC cells. Clinically, patients with high miR-708-5p expression show significantly better survival and lower recurrence. Furthermore, miR-708-5p has a promising potential to apply to differentiating histologic subtypes in NSCLC.Conclusions: Our findings support that miR-708-5p suppresses NSCLC initiation, development, and stemness through interfering DNMT3A-dependent DNA methylation. miR-708-5p may function as a novel diagnostic and prognostic biomarker in NSCLC. Clin Cancer Res; 24(7); 1748-60. ©2017 AACR.
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Affiliation(s)
- Tianchi Liu
- Population and Quantitative Genetics Laboratory, State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiaoping Wu
- Population and Quantitative Genetics Laboratory, State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Tong Chen
- Population and Quantitative Genetics Laboratory, State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Zewei Luo
- Population and Quantitative Genetics Laboratory, State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China. .,School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Xiaohua Hu
- Population and Quantitative Genetics Laboratory, State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China.
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87
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Duruisseaux M, Esteller M. Lung cancer epigenetics: From knowledge to applications. Semin Cancer Biol 2017; 51:116-128. [PMID: 28919484 DOI: 10.1016/j.semcancer.2017.09.005] [Citation(s) in RCA: 187] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 12/17/2022]
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. Advances in our understanding of the genomics of lung cancer have led to substantial progress in the treatment of specific molecular subsets. Immunotherapy also emerges as a major breakthrough in lung cancer treatment. However, challenges remain as a consensual approach for early lung cancer detection remains elusive while primary or secondary drug resistance eventually leads to treatment failure in all patients with advanced disease. Furthermore, a large portion of patients are still treated with conventional chemotherapy that is only modestly effective. The last two decades have seen exponential developments in the epigenetic understanding of lung cancer. Epigenetic alterations in DNA methylation, non-coding RNA expression, chromatin modeling and post transcriptional regulators are key events in each step of lung cancer pathogenesis. Here, we review the central role epigenetic disruptions play in lung cancer carcinogenesis and the acquisition of cancerous phenotype and aggressive behavior as well as in the resistance to therapy. Epigenetic disruptions could represent reliable biomarkers for lung cancer risk assessment, early diagnosis, prognosis stratification, molecular classification and prediction of treatment efficacy. The therapeutic potential of epigenetics targeted drugs in combination with chemotherapy, targeted therapy and/or immunotherapy is currently being intensively investigated. We suggest that integration of tissue-derived or circulating epigenetic biomarkers and epidrugs in clinical trial design will translate epigenetic knowledge of lung cancer into the clinic and improve lung cancer patient outcomes.
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Affiliation(s)
- Michaël Duruisseaux
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Catalonia, Spain and Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Department of Respiratory Medecine, Hôpital Louis-Pradel, Hospices civils de Lyon, 28 avenue du Doyen Lépine, 69677, Lyon cedex, France.
| | - Manel Esteller
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Catalonia, Spain and Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Instituciò Catalana de Recerca i Estudis Avançats (ICREA), 08010, Barcelona, Catalonia, Spain; Department of Physiological Sciences II, School of Medicine, University of Barcelona, 08036, Barcelona, Catalonia, Spain.
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88
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Belinsky SA, Leng S, Wu G, Thomas CL, Picchi MA, Lee SJ, Aisner S, Ramalingam S, Khuri FR, Karp DD. Gene Methylation Biomarkers in Sputum and Plasma as Predictors for Lung Cancer Recurrence. Cancer Prev Res (Phila) 2017; 10:635-640. [PMID: 28904059 DOI: 10.1158/1940-6207.capr-17-0177] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/20/2017] [Accepted: 08/31/2017] [Indexed: 12/25/2022]
Abstract
Detection of methylated genes in exfoliated cells from the lungs of smokers provides an assessment of the extent of field cancerization, is a validated biomarker for predicting lung cancer, and provides some discrimination when interrogated in blood. The potential utility of this 8-gene methylation panel for predicting tumor recurrence has not been assessed. The Eastern Cooperative Oncology Group initiated a prevention trial (ECOG-ACRIN5597) that enrolled resected stage I non-small cell lung cancer patients who were randomized 2:1 to receive selenized yeast versus placebo for 4 years. We conducted a correlative biomarker study to assess prevalence for methylation of the 8-gene panel in longitudinally collected sputum and blood after tumor resection to determine whether selenium alters their methylation profile and whether this panel predicts local and/or distant recurrence. Patients (N = 1,561) were enrolled into the prevention trial; 565 participated in the biomarker study with 122 recurrences among that group. Assessing the association between recurrence and risk of gene methylation longitudinally for up to 48 months showed a 1.4-fold increase in OR for methylation in sputum in the placebo group independent of location (local or distant). Kaplan-Meier curves evaluating the association between number of methylated genes and time to recurrence showed no increased risk in sputum, while a significant HR of 1.5 was seen in plasma. Methylation detection in sputum and blood is associated with risk for recurrence. Cancer Prev Res; 10(11); 635-40. ©2017 AACR.
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Affiliation(s)
- Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico.
| | - Shuguang Leng
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Guodong Wu
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Cynthia L Thomas
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Maria A Picchi
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Sandra J Lee
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Seena Aisner
- Rutgers New Jersey Medical School, Newark, New Jersey
| | - Suresh Ramalingam
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, Georgia
| | - Fadlo R Khuri
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, Georgia
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89
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Abstract
How genetic and epigenetic events synergize to generate the oncogenic state is not well understood. In this issue of Cancer Cell, Vaz et al. provide compelling evidence that exposure to chronic cigarette smoke causes progressive epigenetic alterations that prime for key genetic events to drive the development of lung cancer.
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Affiliation(s)
- Susan J Clark
- Epigenetics Research Laboratory, Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; St. Vincent's Clinical School, UNSW Sydney, Sydney, NSW 1466, Australia.
| | - Peter L Molloy
- CSIRO Health and Biosecurity, PO Box 52, North Ryde, NSW 1670, Australia
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90
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Leng S, Wu G, Klinge DM, Thomas CL, Casas E, Picchi MA, Stidley CA, Lee SJ, Aisner S, Siegfried JM, Ramalingam S, Khuri FR, Karp DD, Belinsky SA. Gene methylation biomarkers in sputum as a classifier for lung cancer risk. Oncotarget 2017; 8:63978-63985. [PMID: 28969046 PMCID: PMC5609978 DOI: 10.18632/oncotarget.19255] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/05/2017] [Indexed: 01/01/2023] Open
Abstract
CT screening for lung cancer reduces mortality, but will cost Medicare ∼2 billion dollars due in part to high false positive rates. Molecular biomarkers could augment current risk stratification used to select smokers for screening. Gene methylation in sputum reflects lung field cancerization that remains in lung cancer patients post-resection. This population was used in conjunction with cancer-free smokers to evaluate classification accuracy of a validated eight-gene methylation panel in sputum for cancer risk. Sputum from resected lung cancer patients (n=487) and smokers from Lovelace (n=1380) and PLuSS (n=718) cohorts was studied for methylation of an 8-gene panel. Area under a receiver operating characteristic curve was calculated to assess the prediction performance in logistic regressions with different sets of variables. The prevalence for methylation of all genes was significantly increased in the ECOG-ACRIN patients compared to cancer-free smokers as evident by elevated odds ratios that ranged from 1.6 to 8.9. The gene methylation panel showed lung cancer prediction accuracy of 82–86% and with addition of clinical variables improved to 87–90%. With sensitivity at 95%, specificity increased from 25% to 54% comparing clinical variables alone to their inclusion with methylation. The addition of methylation biomarkers to clinical variables would reduce false positive screens by ruling out one-third of smokers eligible for CT screening and could increase cancer detection rates through expanding risk assessment criteria.
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Affiliation(s)
- Shuguang Leng
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Guodong Wu
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Donna M Klinge
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Cynthia L Thomas
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Elia Casas
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Maria A Picchi
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Christine A Stidley
- Department of Internal Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Sandra J Lee
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Seena Aisner
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Jill M Siegfried
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - Suresh Ramalingam
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | - Fadlo R Khuri
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | | | - Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
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91
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Zhou C, Huang C, Wang J, Huang H, Li J, Xie Q, Liu Y, Zhu J, Li Y, Zhang D, Zhu Q, Huang C. LncRNA MEG3 downregulation mediated by DNMT3b contributes to nickel malignant transformation of human bronchial epithelial cells via modulating PHLPP1 transcription and HIF-1α translation. Oncogene 2017; 36:3878-3889. [PMID: 28263966 PMCID: PMC5525547 DOI: 10.1038/onc.2017.14] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/11/2016] [Accepted: 12/27/2016] [Indexed: 02/08/2023]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as key factors in various fundamental cellular biological processes, and many of them are likely to have functional roles in tumorigenesis. Maternally expressed gene 3 (MEG3) is an imprinted gene located at 14q32 that encodes a lncRNA, and the decreased MEG3 expression has been reported in multiple cancer tissues. However, nothing is known about the alteration and role of MEG3 in environmental carcinogen-induced lung tumorigenesis. Our present study, for the first time to the best of our knowledge, discovered that environmental carcinogen nickel exposure led to MEG3 downregulation, consequently initiating c-Jun-mediated PHLPP1 transcriptional inhibition and hypoxia-inducible factor-1α (HIF-1α) protein translation upregulation, in turn resulting in malignant transformation of human bronchial epithelial cells. Mechanistically, MEG3 downregulation was attributed to nickel-induced promoter hypermethylation via elevating DNMT3b expression, whereas PHLPP1 transcriptional inhibition was due to the decreasing interaction of MEG3 with its inhibitory transcription factor c-Jun. Moreover, HIF-1α protein translation was upregulated via activating the Akt/p70S6K/S6 axis resultant from PHLPP1 inhibition in nickel responses. Collectively, we uncover that nickel exposure results in DNMT3b induction and MEG3 promoter hypermethylation and expression inhibition, further reduces its binding to c-Jun and in turn increasing c-Jun inhibition of PHLPP1 transcription, leading to the Akt/p70S6K/S6 axis activation, and HIF-1α protein translation, as well as malignant transformation of human bronchial epithelial cells. Our studies provide a significant insight into understanding the alteration and role of MEG3 in nickel-induced lung tumorigenesis.
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MESH Headings
- Adenocarcinoma/enzymology
- Adenocarcinoma/pathology
- Adenocarcinoma of Lung
- Bronchi/pathology
- Carcinogens/toxicity
- Carcinoma, Squamous Cell/enzymology
- Carcinoma, Squamous Cell/pathology
- Cell Line
- Cell Transformation, Neoplastic/chemically induced
- Cell Transformation, Neoplastic/metabolism
- DNA (Cytosine-5-)-Methyltransferases/physiology
- Down-Regulation
- Epithelial Cells/enzymology
- Gene Expression Regulation, Neoplastic
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Lung Neoplasms/enzymology
- Lung Neoplasms/pathology
- Nickel/toxicity
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Phosphoprotein Phosphatases/genetics
- Phosphoprotein Phosphatases/metabolism
- Promoter Regions, Genetic
- Protein Biosynthesis
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Transcription, Genetic
- DNA Methyltransferase 3B
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Affiliation(s)
- Chengfan Zhou
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Chao Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Jingjing Wang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Haishan Huang
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jingxia Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Qipeng Xie
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yu Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Junlan Zhu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Yang Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Dongyun Zhang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Qixing Zhu
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
| | - Chuanshu Huang
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
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92
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MicroRNA-330-3p promotes cell invasion and metastasis in non-small cell lung cancer through GRIA3 by activating MAPK/ERK signaling pathway. J Hematol Oncol 2017. [PMID: 28629431 PMCID: PMC5477161 DOI: 10.1186/s13045-017-0493-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Brain metastasis (BM) is associated with poor prognosis in patients with non-small cell lung cancer (NSCLC). Recent studies demonstrated that microRNA-330-3p (miR-330-3p) was involved in NSCLC brain metastasis (BM). However, the exact parts played by miR-330-3p in BM of NSCLC remain unknown. Discovery and development of biomarkers and elucidation of the mechanism underlying BM in NSCLC is critical for effective prophylactic interventions. Here, we evaluated the expression and biological effects of miR-330-3p in NSCLC cells and explored the underlying mechanism of miR-330-3p in promoting cell migration and invasion in NSCLC. Methods Stable over-expression and knockdown of miR-330-3p in NSCLC cells was constructed with lentivirus. Expression levels of miR-330-3p in NSCLC cells were quantified by quantitive real-time PCR (qRT-PCR). The effects of miR-330-3p on NSCLC cells were investigated using assays of cell viability, migration, invasion, cell cycle, apoptosis, western blotting, immunohistochemical, and immunofluorescence staining. A xenograft nude mouse model and in situ brain metastasis model were used to observe tumor growth and brain metastasis. The potential target of miR-330-3p in NSCLC cells was explored using the luciferase reporter assay, qRT-PCR, and western blotting. The miR-330-3p targets were identified using bioinformatics analysis and verified by luciferase reporter assay. The correlation between GRIA3 and DNA methyltransferase (DNMT) 1 and DNMT3A was tested by RT-PCR, western blotting, and co-immunoprecipitation (IP). Results miR-330-3p was significantly up-regulated in NSCLC cell lines. MTT assay, transwell migration, and invasion assays showed that miR-330-3p promoted the growth, migration, and invasion of NSCLC cells in vitro and induced tumor growth and metastasis in vivo. Luciferase reporter assays showed that GRIA3 was a target of miR-330-3p. qRT-PCR and western blotting exhibited that miR-330-3p promoted the growth, invasion, and migration of NSCLC cells by activating mitogen-activated protein kinase (MAPK)/extracellular-regulated protein kinases (ERK) signaling pathway. Furthermore, miR-330-3p up-regulated the total DNA methylation in NSCLC cells, and co-IP-demonstrated GRIA3 was directly related with DNMT1 and DNMT3A. Conclusions miR-330-3p promoted the progression of NSCLC and might be a potential target for the further research of NSCLC brain metastasis. Electronic supplementary material The online version of this article (doi:10.1186/s13045-017-0493-0) contains supplementary material, which is available to authorized users.
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93
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Chang WL, Lai WW, Kuo IY, Lin CY, Lu PJ, Sheu BS, Wang YC. A six-CpG panel with DNA methylation biomarkers predicting treatment response of chemoradiation in esophageal squamous cell carcinoma. J Gastroenterol 2017; 52:705-714. [PMID: 27671002 DOI: 10.1007/s00535-016-1265-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 09/13/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Prognosis of esophageal squamous cell carcinoma (ESCC) patients remains poor, and the chemoradiotherapy (CRT) applied to ESCC patients often failed. Therefore, development of biomarkers to predict CRT response is immensely important for choosing the best treatment strategy of an individual patient. METHODS The methylation array and pyrosequencing methylation assay were performed in pre-treatment endoscopic biopsies to identify probes with differential CpG methylation levels between good and poor CRT responders in a cohort of 12 ESCC patients. Receiver operating characteristic curves and multivariate logistic regressions were conducted to build the risk score equation of selected CpG probes in another cohort of 91 ESCC patients to predict CRT response. Kaplan-Meier analysis was used to estimate progression-free survival or time-to-progression of patients predicted with good and poor CRT responses. RESULTS Nine differentially methylated CpG probes were identified to be associated with CRT response. A risk score equation comprising six CpG probes located in IFNGR2, KCNK4, NOTCH4, NPY, PAX6, and SOX17 genes were built. The risk score was derived from the sum of each probe multiplied by its corresponding coefficient. Such a risk score has a good prediction performance in discriminating poor CRT responders from good responders (AUC: 0.930). Moreover, poor CRT responders predicted by risk score significantly had poorer prognosis in terms of shorter progression-free survival and time-to-progression (p = 0.004-0.008). CONCLUSION We established a proof-of-concept CRT response prediction panel consisting of six-CpG methylation biomarkers in identifying ESCC patients who are at high risk of CRT failure and need intensive care.
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Affiliation(s)
- Wei-Lun Chang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wu-Wei Lai
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - I-Ying Kuo
- Department of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Chien-Yu Lin
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Bor-Shyang Sheu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan. .,Department of Internal Medicine, Tainan Hospital, Ministry of Health and Welfare, Tainan, 700, Taiwan.
| | - Yi-Ching Wang
- Department of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan. .,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan.
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Fish TJ, Benninghoff AD. DNA methylation in lung tissues of mouse offspring exposed in utero to polycyclic aromatic hydrocarbons. Food Chem Toxicol 2017; 109:703-713. [PMID: 28476633 DOI: 10.1016/j.fct.2017.04.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/29/2017] [Accepted: 04/29/2017] [Indexed: 12/19/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) comprise an important class of environmental pollutants that are known to cause lung cancer in animals and are suspected lung carcinogens in humans. Moreover, evidence from cell-based studies points to PAHs as modulators of the epigenome. The objective of this work was to assess patterns of genome-wide DNA methylation in lung tissues of adult offspring initiated in utero with the transplacental PAH carcinogens dibenzo [def,p]chrysene (DBC) or benzo [a]pyrene (BaP). Genome-wide methylation patterns for normal (not exposed), normal adjacent and lung tumor tissues obtained from adult offspring were determined using methylated DNA immunoprecipitation (MeDIP) with the NimbleGen mouse DNA methylation CpG island array. Lung tumor incidence in 45-week old mice initiated with BaP was 32%, much lower than that of the DBC-exposed offspring at 96%. Also, male offspring appeared more susceptible to BaP as compared to females. Distinct patterns of DNA methylation were associated with non-exposed, normal adjacent and adenocarcinoma lung tissues, as determined by principal components, hierarchical clustering and gene ontology analyses. From these methylation profiles, a set of genes of interest was identified that includes potential important targets for epigenetic modification during the process of lung tumorigenesis in animals exposed to environmental PAHs.
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Affiliation(s)
- Trevor J Fish
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; School of Veterinary Medicine, Utah State University, Logan, UT 84322, USA.
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95
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Hulbert A, Jusue-Torres I, Stark A, Chen C, Rodgers K, Lee B, Griffin C, Yang A, Huang P, Wrangle J, Belinsky SA, Wang TH, Yang SC, Baylin SB, Brock MV, Herman JG. Early Detection of Lung Cancer Using DNA Promoter Hypermethylation in Plasma and Sputum. Clin Cancer Res 2017; 23:1998-2005. [PMID: 27729459 PMCID: PMC6366618 DOI: 10.1158/1078-0432.ccr-16-1371] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 09/17/2016] [Accepted: 09/20/2016] [Indexed: 12/12/2022]
Abstract
Purpose: CT screening can reduce death from lung cancer. We sought to improve the diagnostic accuracy of lung cancer screening using ultrasensitive methods and a lung cancer-specific gene panel to detect DNA methylation in sputum and plasma.Experimental Design: This is a case-control study of subjects with suspicious nodules on CT imaging. Plasma and sputum were obtained preoperatively. Cases (n = 150) had pathologic confirmation of node-negative (stages I and IIA) non-small cell lung cancer. Controls (n = 60) had non-cancer diagnoses. We detected promoter methylation using quantitative methylation-specific real-time PCR and methylation-on-beads for cancer-specific genes (SOX17, TAC1, HOXA7, CDO1, HOXA9, and ZFP42).Results: DNA methylation was detected in plasma and sputum more frequently in people with cancer compared with controls (P < 0.001) for five of six genes. The sensitivity and specificity for lung cancer diagnosis using the best individual genes was 63% to 86% and 75% to 92% in sputum, respectively, and 65% to 76% and 74% to 84% in plasma, respectively. A three-gene combination of the best individual genes has sensitivity and specificity of 98% and 71% using sputum and 93% and 62% using plasma. Area under the receiver operating curve for this panel was 0.89 [95% confidence interval (CI), 0.80-0.98] in sputum and 0.77 (95% CI, 0.68-0.86) in plasma. Independent blinded random forest prediction models combining gene methylation with clinical information correctly predicted lung cancer in 91% of subjects using sputum detection and 85% of subjects using plasma detection.Conclusions: High diagnostic accuracy for early-stage lung cancer can be obtained using methylated promoter detection in sputum or plasma. Clin Cancer Res; 23(8); 1998-2005. ©2016 AACR.
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Affiliation(s)
- Alicia Hulbert
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ignacio Jusue-Torres
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alejandro Stark
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland
| | - Chen Chen
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Thoracic Surgery, Second Xiangya Hospital of Central South University, Changsha, Hunan, PR China
| | - Kristen Rodgers
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Beverly Lee
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Candace Griffin
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Andrew Yang
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Peng Huang
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Biostatistics, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - John Wrangle
- Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Steven A Belinsky
- Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Tza-Huei Wang
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland
- Department of Biomedical Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, School of Medicine, Baltimore, Maryland
| | - Stephen C Yang
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Stephen B Baylin
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Malcolm V Brock
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - James G Herman
- Sidney Kimmel Cancer Center, Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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96
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Zhong Z, Ye Y, Guo W, He Y, Hu W. Relationship between DLK1 gene promoter region DNA methylation and non-small cell lung cancer biological behavior. Oncol Lett 2017; 13:4123-4126. [PMID: 28588700 PMCID: PMC5452895 DOI: 10.3892/ol.2017.6019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 02/10/2017] [Indexed: 02/06/2023] Open
Abstract
We investigated the possible association between DLKI gene promoter region methylation and the increased invasion capacity of non-small cell lung cancer (NSCLC). Lung cancer cell line H1299, as well as the gene transfection and RNA interference technology were used to build DLK gene overexpression and knockdown cells. An in vitro invasion assay was performed to observe the changes in the invasion ability of lung cancer cells. Western blot analysis was used to verify Notchl and matrix metalloproteinase-9 (MMP-9) expression levels and a sulfurous acid sequencing technique was used to test the DNA methylation level in the promoter region. Our results showed that the invasion ability of cells in the overexpression group was significantly enhanced. This ability was considerably reduced in the knockdown group. The Notchl and MMP-9 expression level increased significantly in the overexpression group, while it was reduced considerably in the knockdown group. We detected significantly lower levels of DNA methylation in the promoter region in the overexpression group. It was concluded that methylation of the DLK1 gene promoter region increased the invasion ability of NSCLC. Furthermore, it is possible that this process is related to the Notch signaling pathway.
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Affiliation(s)
- Zhaokui Zhong
- Department of Thoracic Surgery, Central Hospital of Zhumadian, Zhumadian, Henan 463000, P.R. China
| | - Yongting Ye
- Department of Internal Medicine, The Fourth People's Hospital of Zhumadian, Zhumadian, Henan 463000, P.R. China
| | - Wei Guo
- Department of Thoracic Surgery, Central Hospital of Zhumadian, Zhumadian, Henan 463000, P.R. China
| | - Yi He
- Department of Thoracic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Weicai Hu
- Department of Thoracic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
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97
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Yi J, Gao R, Chen Y, Yang Z, Han P, Zhang H, Dou Y, Liu W, Wang W, Du G, Xu Y, Wang J. Overexpression of NSUN2 by DNA hypomethylation is associated with metastatic progression in human breast cancer. Oncotarget 2017; 8:20751-20765. [PMID: 27447970 PMCID: PMC5400542 DOI: 10.18632/oncotarget.10612] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/06/2016] [Indexed: 01/29/2023] Open
Abstract
NSUN2 is a RNA methyltransferase that has been shown to be implicated in development of human cancer. However, the functional role of NSUN2, mechanism of NSUN2 overexpression and its association with clinicopathologic features in breast cancer remain unclear. To investigate alterations in the expression and functional role of NSUN2 in breast cancer, NSUN2 expression was assessed in breast cancer cells and tissues obtained from cancers at different American Joint Committee on Cancer (AJCC) stages, and its functions were investigated using breast cancer cells. NSUN2 expression was shown to be significantly higher in breast cancer cells and tissues than in normal breast epithelial cells and tissues, at both mRNA and protein levels. Overexpression of NSUN2 was shown to promote cell proliferation, migration, and invasion while NSUN2 knockdown inhibited these processes in vitro and in vivo. NSUN2 expression level was associated with the methylation level of its promoter. Our results demonstrated that the overall expression of NSUN2 significantly correlated with clinical stage (P=0.027), tumor classification (P=0.012), pathological differentiation (P=0.023), as well as with the expression levels of estrogen receptor (P<0.001), progesterone receptor (P=0.001), and Ki-67 (P<0.001). Our findings provide a unique insight into the roles and effects of NSUN2 overexpression in breast cancer cells, and highlight the necessity of the investigation of novel therapeutic targets, such as NSUN2, for the improvement of breast cancer treatments.
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Affiliation(s)
- Jie Yi
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Ran Gao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Yu Chen
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Zhuo Yang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Pei Han
- Department of Biochemistry and Molecular Biology, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, People's Republic of China
| | - Hui Zhang
- Department of Pathology, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Yaling Dou
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Wenjing Liu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Wengong Wang
- Department of Biochemistry and Molecular Biology, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, People's Republic of China
| | - Guanhua Du
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, People's Republic of China
| | - Yingchun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, People's Republic of China
| | - Jinhua Wang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, People's Republic of China
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98
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Huang D, Ovcharenko I. Epigenetic and genetic alterations and their influence on gene regulation in chronic lymphocytic leukemia. BMC Genomics 2017; 18:236. [PMID: 28302063 PMCID: PMC5353786 DOI: 10.1186/s12864-017-3617-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 03/10/2017] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND To understand the changes of gene regulation in carcinogenesis, we explored signals of DNA methylation - a stable epigenetic mark of gene regulatory elements - and designed a computational model to profile loss and gain of regulatory elements (REs) during carcinogenesis. We also utilized sequencing data to analyze the allele frequency of single nucleotide polymorphisms (SNPs) and detected the cancer-associated SNPs, i.e., the SNPs displaying the significant allele frequency difference between cancer and normal samples. RESULTS After applying this model to chronic lymphocytic leukemia (CLL) data, we identified REs differentially activated (dREs) between normal and CLL cells, consisting of 6,802 dREs gained and 4,606 dREs lost in CLL. The identified regulatory perturbations coincide with changes in the expression of target genes. In particular, the genes encoding DNA methyltransferases harbor multiple lost-in-cancer dREs and zero gained-in-cancer dREs, indicating that the damaged regulation of these genes might be one of the key causes of tumor formation. dREs display a significantly elevated density of the genome-wide association study (GWAS) SNPs associated with CLL and CLL-related traits. We observed that most of dRE GWAS SNPs associated with CLL and CLL-related traits (83%) display a significant haplotype association among the identified cancer-associated alleles and the risk alleles that have been reported in GWAS. Also dREs are enriched for the binding sites of the well-established B-cell and CLL transcription factors (TFs) NF-kB, AP2, P53, E2F1, PAX5, and SP1. We also identified CLL-associated SNPs and demonstrated that the mutations at these SNPs change the binding sites of key TFs much more frequently than expected. CONCLUSIONS Through exploring sequencing data measuring DNA methylation, we identified the epigenetic alterations (more specifically, DNA methylation) and genetic mutations along non-coding genomic regions CLL, and demonstrated that these changes play a critical role in carcinogenesis through damaging the regulation of key genes and alternating the binding of key TFs in B and CLL cells.
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Affiliation(s)
- Di Huang
- Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ivan Ovcharenko
- Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20892, USA.
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99
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Yang L, Hou XY, Wei Y, Thai P, Chai F. Biomarkers of the health outcomes associated with ambient particulate matter exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:1446-1459. [PMID: 27908628 DOI: 10.1016/j.scitotenv.2016.11.146] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 05/22/2023]
Abstract
Epidemiologic evidence supports the positive association of cardiopulmonary morbidity and mortality, and lung cancer risk with exposure to airborne particulate matter (PM). Oxidative stress and inflammation have been proposed to be the major causal factors involved in mediating PM effects on both cardiovascular and pulmonary health outcomes. However, the mechanism whereby PM causes the health effects is not fully elucidated. To evaluate and investigate human exposure to PM, it is essential to have a specific, sensitive and robust characterization of individual exposure to PM. Biomarkers may mark important intermediate steps leading to overt health effects after PM exposure. Thus biomarkers are promising indicators, which could serve as representative measures of the exposure to PM for assessing the health impacts and understanding the mechanism. Indeed, a number of biomarkers are already in use in the field of epidemiological studies and toxicological research. However, we are facing now the challenges to select robust, specific and sensitive biomarkers, which can be employed in large-scale of population to assess the health risk and to monitor the effectiveness of interventions. In this review, we describe a range of biomarkers that are associated with air pollution exposure, particularly markers of oxidative stress, inflammatory factors, and microRNAs, as well as markers of pollutants metabolites. Understanding the nature of the association of these biomarkers with PM exposure may shed some light on the process of selecting biomarkers for large-scale population studies, developing novel preventative and therapeutic strategies.
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Affiliation(s)
- Lixin Yang
- Department of Environmental Pollution and Health, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012 Beijing, China.
| | - Xiang-Yu Hou
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Yongjie Wei
- Department of Environmental Pollution and Health, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012 Beijing, China
| | - Phong Thai
- International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Fahe Chai
- Chinese Research Academy of Environmental Sciences, 100012 Beijing, China.
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100
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Xu J, Zheng T, Le J, Jia L. Long-stem shaped multifunctional molecular beacon for highly sensitive nucleic acids determination via intramolecular and intermolecular interactions based strand displacement amplification. Analyst 2017; 142:4438-4445. [DOI: 10.1039/c7an01205e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
LS-MMB based intra-SDA and inter-SDA for amplified gene signaling.
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Affiliation(s)
- Jianguo Xu
- School of Food Science and Engineering
- Hefei University of Technology
- Hefei 230009
- China
- Cancer Metastasis Alert and Prevention Center
| | - Tingting Zheng
- Cancer Metastasis Alert and Prevention Center
- and Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy
- Fuzhou University
| | - Jingqing Le
- Cancer Metastasis Alert and Prevention Center
- and Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy
- Fuzhou University
| | - Lee Jia
- Cancer Metastasis Alert and Prevention Center
- and Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy
- Fuzhou University
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