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Cao Q, Gao Y, Zhou C, Yan Y, Yu J, Wang P, Zhang B, Sun L. Intervention of epithelial mesenchymal transition against colon cancer cell growth and metastasis based on SOX21/POU4F2/Hedgehog signaling axis. Life Sci 2024; 352:122905. [PMID: 38992573 DOI: 10.1016/j.lfs.2024.122905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 06/28/2024] [Accepted: 07/06/2024] [Indexed: 07/13/2024]
Abstract
AIMS Colon cancer poses a major threat to human health and a heavy burden on the national economy. As a member of the SOX transcription factor family, SRY-box transcription factor 21 (SOX21) is associated with various cancers, but its mechanism of action in colon cancer remains unclear. This study focused on the molecular mechanisms of transcription factor SOX21 in proliferation and metastasis of colon cancer cells. MAIN METHODS We analyzed SOX21 expression level and its impact on survival in colon cancer patients by bioinformatics analysis. We used public databases for gene correlation, GSEA enrichment analysis. Cell function experiments (colony formation assay, wound healing assay, Transwell migration and invasion assay) were utilized to determine the impact of SOX21 silencing and over-expression on cell proliferation and metastasis. The luciferase reporter assay, CUT&RUN-qPCR assay and Methylation Specific PCR were used to explore SOX21-POU class 4 homeobox 2 (POU4F2) molecular interactions. The molecular mechanisms were verified by Quantitative real-time PCR and Western blot analysis. KEY FINDINGS SOX21 is highly expressed and affects the overall survival of colon cancer patients. SOX21 can attenuates POU4F2 methylation state by binding with it. In addition, this interaction facilitate its transcriptional activation of Hedgehog pathway, mediates epithelial-mesenchymal transition (EMT), consequently promoting the proliferation and metastasis of colon cancer cells. SIGNIFICANCE Our study reveals that SOX21 is an oncogenic molecule and suggests its regulatory role in colon carcinogenesis and progression, providing new insights into the treatment of this disease.
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Affiliation(s)
- Qiaochang Cao
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Yangyang Gao
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Chenxi Zhou
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Yici Yan
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China
| | - Jieru Yu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Peipei Wang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China.
| | - Bo Zhang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China.
| | - Leitao Sun
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, China; Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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2
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Zhao N, Lai C, Wang Y, Dai S, Gu H. Understanding the role of DNA methylation in colorectal cancer: Mechanisms, detection, and clinical significance. Biochim Biophys Acta Rev Cancer 2024; 1879:189096. [PMID: 38499079 DOI: 10.1016/j.bbcan.2024.189096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/18/2024] [Accepted: 03/13/2024] [Indexed: 03/20/2024]
Abstract
Colorectal cancer (CRC) is one of the deadliest malignancies worldwide, ranking third in incidence and second in mortality. Remarkably, early stage localized CRC has a 5-year survival rate of over 90%; in stark contrast, the corresponding 5-year survival rate for metastatic CRC (mCRC) is only 14%. Compounding this problem is the staggering lack of effective therapeutic strategies. Beyond genetic mutations, which have been identified as critical instigators of CRC initiation and progression, the importance of epigenetic modifications, particularly DNA methylation (DNAm), cannot be underestimated, given that DNAm can be used for diagnosis, treatment monitoring and prognostic evaluation. This review addresses the intricate mechanisms governing aberrant DNAm in CRC and its profound impact on critical oncogenic pathways. In addition, a comprehensive review of the various techniques used to detect DNAm alterations in CRC is provided, along with an exploration of the clinical utility of cancer-specific DNAm alterations.
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Affiliation(s)
- Ningning Zhao
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China
| | - Chuanxi Lai
- Division of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
| | - Yunfei Wang
- Zhejiang ShengTing Biotech. Ltd, Hangzhou 310000, China
| | - Sheng Dai
- Division of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China.
| | - Hongcang Gu
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China.
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3
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Jiang F, Zhao J, Sun J, Chen W, Zhao Y, Zhou S, Yuan S, Timofeeva M, Law PJ, Larsson SC, Chen D, Houlston RS, Dunlop MG, Theodoratou E, Li X. Impact of ambient air pollution on colorectal cancer risk and survival: insights from a prospective cohort and epigenetic Mendelian randomization study. EBioMedicine 2024; 103:105126. [PMID: 38631091 PMCID: PMC11035091 DOI: 10.1016/j.ebiom.2024.105126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 03/20/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND This study investigates the associations between air pollution and colorectal cancer (CRC) risk and survival from an epigenomic perspective. METHODS Using a newly developed Air Pollutants Exposure Score (APES), we utilized a prospective cohort study (UK Biobank) to investigate the associations of individual and combined air pollution exposures with CRC incidence and survival, followed by an up-to-date systematic review with meta-analysis to verify the associations. In epigenetic two-sample Mendelian randomization analyses, we examine the associations between genetically predicted DNA methylation related to air pollution and CRC risk. Further genetic colocalization and gene-environment interaction analyses provided different insights to disentangle pathogenic effects of air pollution via epigenetic modification. FINDINGS During a median 12.97-year follow-up, 5767 incident CRC cases among 428,632 participants free of baseline CRC and 533 deaths in 2401 patients with CRC were documented in the UK Biobank. A higher APES score was associated with an increased CRC risk (HR, 1.03, 95% CI = 1.01-1.06; P = 0.016) and poorer survival (HR, 1.13, 95% CI = 1.03-1.23; P = 0.010), particularly among participants with insufficient physical activity and ever smokers (Pinteraction > 0.05). A subsequent meta-analysis of seven observational studies, including UK Biobank data, corroborated the association between PM2.5 exposure (per 10 μg/m3 increment) and elevated CRC risk (RR,1.42, 95% CI = 1.12-1.79; P = 0.004; I2 = 90.8%). Genetically predicted methylation at PM2.5-related CpG site cg13835894 near TMBIM1/PNKD and cg16235962 near CXCR5, and NO2-related cg16947394 near TMEM110 were associated with an increased CRC risk. Gene-environment interaction analysis confirmed the epigenetic modification of aforementioned CpG sites with CRC risk and survival. INTERPRETATION Our study suggests the association between air pollution and CRC incidence and survival, underscoring the possible modifying roles of epigenomic factors. Methylation may partly mediate pathogenic effects of air pollution on CRC, with annotation to epigenetic alterations in protein-coding genes TMBIM1/PNKD, CXCR5 and TMEM110. FUNDING Xue Li is supported by the Natural Science Fund for Distinguished Young Scholars of Zhejiang Province (LR22H260001), the National Nature Science Foundation of China (No. 82204019) and Healthy Zhejiang One Million People Cohort (K-20230085). ET is supported by a Cancer Research UK Career Development Fellowship (C31250/A22804). MGD is supported by the MRC Human Genetics Unit Centre Grant (U127527198).
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Affiliation(s)
- Fangyuan Jiang
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhui Zhao
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Sun
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenxi Chen
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuyuan Zhao
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Siyun Zhou
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Maria Timofeeva
- Danish Institute for Advanced Study (DIAS), Epidemiology, Biostatistics and Biodemography Research Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Philip J Law
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - Susanna C Larsson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden; Unit of Medical Epidemiology, Department of Surgical Sciences, Uppsala, Sweden
| | - Dong Chen
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, Zhejiang Province, China
| | - Richard S Houlston
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - Malcolm G Dunlop
- Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Evropi Theodoratou
- Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK; Centre for Global Health, Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Xue Li
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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4
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Huang H, Li Q, Tu X, Yu D, Zhou Y, Ma L, Wei K, Gao Y, Zhao G, Han R, Ye F, Ke C. DNA hypomethylation patterns and their impact on the tumor microenvironment in colorectal cancer. Cell Oncol (Dordr) 2024:10.1007/s13402-024-00933-x. [PMID: 38520647 DOI: 10.1007/s13402-024-00933-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Recent research underscores the pivotal role of immune checkpoints as biomarkers in colorectal cancer (CRC) therapy, highlighting the dynamics of resistance and response to immune checkpoint inhibitors. The impact of epigenetic alterations in CRC, particularly in relation to immune therapy resistance, is not fully understood. METHODS We integrated a comprehensive dataset encompassing TCGA-COAD, TCGA-READ, and multiple GEO series (GSE14333, GSE37892, GSE41258), along with key epigenetic datasets (TCGA-COAD, TCGA-READ, GSE77718). Hierarchical clustering, based on Euclidean distance and Ward's method, was applied to 330 primary tumor samples to identify distinct clusters. The immune microenvironment was assessed using MCPcounter. Machine learning algorithms were employed to predict DNA methylation patterns and their functional enrichment, in addition to transcriptome expression analysis. Genomic mutation profiles and treatment response assessments were also conducted. RESULTS Our analysis delineated a specific tumor cluster with CpG Island (CGI) methylation, termed the Demethylated Phenotype (DMP). DMP was associated with metabolic pathways such as oxidative phosphorylation, implicating increased ATP production efficiency in mitochondria, which contributes to tumor aggressiveness. Furthermore, DMP showed activation of the Myc target pathway, known for tumor immune suppression, and exhibited downregulation in key immune-related pathways, suggesting a tumor microenvironment characterized by diminished immunity and increased fibroblast infiltration. Six potential therapeutic agents-lapatinib, RDEA119, WH.4.023, MG.132, PD.0325901, and AZ628-were identified as effective for the DMP subtype. CONCLUSION This study unveils a novel epigenetic phenotype in CRC linked to resistance against immune checkpoint inhibitors, presenting a significant step toward personalized medicine by suggesting epigenetic classifications as a means to identify ideal candidates for immunotherapy in CRC. Our findings also highlight potential therapeutic agents for the DMP subtype, offering new avenues for tailored CRC treatment strategies.
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Grants
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- 2021YDZ03 Medical Products Administration of Guangdong Province
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- QN2021012 Science and Technology Research Project of Hebei Higher Education Institutions
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 81902498,H2022405002 National Natural Science Foundation of China
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- 2019CFB177 Hubei Provincial Natural Science Foundation
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- Q20182105 Natural Science Foundation of Hubei Provincial Department of Education
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- CXPJJH11800001-2018333 Chen Xiao-ping Foundation for the development of science and technology of Hubei Provincial
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- WJ2021Q007 The Foundation of Health and Family planning Commission of Hubei Province
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 201810929005, 201810929009, 201810929068, 201813249010, S201910929009, S201910929045, S202013249005, S202013249008 and 202010929009 Innovation and entrepreneurship training program
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
- 2021JJXM009 The Scientific and Technological Project of Taihe hospital
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Affiliation(s)
- He Huang
- Department of General Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, 510630, China
| | - Qian Li
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Xusheng Tu
- Department of Emergency Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, 510630, China
| | - Dongyue Yu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Yundong Zhou
- Shanghai Medical Innovation Fusion Biomedical Research Center, Shanghai, China
| | - Lifei Ma
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
- College of Lab Medicine, Hebei North University, Zhangjiakou, Hebei, 075000, China
| | - Kongyuan Wei
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany
| | - Yuzhen Gao
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, China
| | - Guodong Zhao
- Faculty of Hepatopancreatobiliary Surgery, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, 100853, China
| | - Ruiqin Han
- State Key Laboratory of Common Mechanism Research for Major Diseas, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Fangdie Ye
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200000, China.
| | - Chunlian Ke
- Department of General Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, 510630, China.
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5
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Gehring A, Huebner K, Rani H, Erlenbach-Wuensch K, Merkel S, Mahadevan V, Grutzmann R, Hartmann A, Schneider-Stock R. DNA demethylation and tri-methylation of H3K4 at the TACSTD2 promoter are complementary players for TROP2 regulation in colorectal cancer cells. Sci Rep 2024; 14:2683. [PMID: 38302503 PMCID: PMC10834991 DOI: 10.1038/s41598-024-52437-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024] Open
Abstract
TROP2 is a powerful cancer driver in colorectal cancer cells. Divergent epigenetic regulation mechanisms for the corresponding TACSTD2 gene exist such as miRNAs or DNA methylation. However, the role of TACSTD2 promoter hypermethylation in colorectal cancer has not been investigated yet. In this study, TROP2 expression strongly correlated with promoter methylation in different colorectal tumor cell lines. Treatment with 5-Azacytidine, a DNMT1 inhibitor, led to demethylation of the TACSTD2 promoter accompanied by an increase in TROP2 protein expression. TROP2 expression correlated with promoter methylation in vivo in human colon tumor tissue, thereby verifying promoter methylation as an important factor in the regulation of TROP2 expression in colorectal cancer. When performing a ChIP-Seq analysis in HCT116 and HT29 cells, we found that TACSTD2 promoter demethylation was accompanied by tri-methylation of H3K4. In silico analysis of GSE156613 data set confirmed that a higher binding of histone mark H3K4me3 around the TACSTD2 promoter was found in TACSTD2 high expressing tumors of colon cancer patients compared to the corresponding adjacent tumor tissue. Moreover, the link between TROP2 and the H3K4me3 code was even evident in tumors showing high intratumoral heterogeneity for TROP2 staining. Our data provide novel evidence for promoter demethylation and simultaneous gains of the active histone mark H3K4me3 across CpG-rich sequences, both being complementary mechanisms in the transcriptional regulation of TACSTD2 in colon cancer. The functional consequences of TROP2 loss in colorectal cancer needs to be further investigated.
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Affiliation(s)
- A Gehring
- Experimental Tumorpathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
- Institute of Pathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - K Huebner
- Experimental Tumorpathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
- Institute of Pathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - H Rani
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bangalore, India
| | - K Erlenbach-Wuensch
- Institute of Pathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - S Merkel
- Department of Surgery, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Bavarian Cancer Research Center (BZKF), Erlangen, Germany
| | - V Mahadevan
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bangalore, India
| | - R Grutzmann
- Department of Surgery, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Bavarian Cancer Research Center (BZKF), Erlangen, Germany
| | - A Hartmann
- Institute of Pathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Bavarian Cancer Research Center (BZKF), Erlangen, Germany
- FAU Profile Center Immunomedicine (FAU I-MED), FAU Erlangen-Nürnberg, Erlangen, Germany
| | - R Schneider-Stock
- Experimental Tumorpathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany.
- Institute of Pathology, Universitätsklinikum Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany.
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Bavarian Cancer Research Center (BZKF), Erlangen, Germany.
- FAU Profile Center Immunomedicine (FAU I-MED), FAU Erlangen-Nürnberg, Erlangen, Germany.
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6
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Postwala H, Shah Y, Parekh PS, Chorawala MR. Unveiling the genetic and epigenetic landscape of colorectal cancer: new insights into pathogenic pathways. Med Oncol 2023; 40:334. [PMID: 37855910 DOI: 10.1007/s12032-023-02201-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/19/2023] [Indexed: 10/20/2023]
Abstract
Colorectal cancer (CRC) is a complex disease characterized by genetic and epigenetic alterations, playing a crucial role in its development and progression. This review aims to provide insights into the emerging landscape of these alterations in CRC pathogenesis to develop effective diagnostic tools and targeted therapies. Genetic alterations in signaling pathways such as Wnt/β-catenin, and PI3K/Akt/mTOR are pivotal in CRC development. Genetic profiling has identified distinct molecular subtypes, enabling personalized treatment strategies. Epigenetic modifications, including DNA methylation and histone modifications, also contribute to CRC pathogenesis by influencing critical cellular processes through gene silencing or activation. Non-coding RNAs have emerged as essential players in epigenetic regulation and CRC progression. Recent research highlights the interplay between genetic and epigenetic alterations in CRC. Genetic mutations can affect epigenetic modifications, leading to dysregulated gene expression and signaling cascades. Conversely, epigenetic changes can modulate genetic expression, amplifying or dampening the effects of genetic alterations. Advancements in understanding pathogenic pathways have potential clinical applications. Identifying genetic and epigenetic markers as diagnostic and prognostic biomarkers promises more accurate risk assessment and early detection. Challenges remain, including validating biomarkers and developing robust therapeutic strategies through extensive research and clinical trials. The dynamic nature of genetic and epigenetic alterations necessitates a comprehensive understanding of their temporal and spatial patterns during CRC progression. In conclusion, the genetic and epigenetic landscape of CRC is increasingly being unraveled, providing valuable insights into its pathogenesis. Integrating genetic and epigenetic knowledge holds great potential for improving diagnostics, prognostics, and personalized therapies in CRC. Continued research efforts are vital to translate these findings into clinical practice, ultimately improving patient outcomes.
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Affiliation(s)
- Humzah Postwala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Yesha Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Priyajeet S Parekh
- AV Pharma LLC, 1545 University Blvd N Ste A, Jacksonville, Florida, 32211, USA
| | - Mehul R Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, 380009, Gujarat, India.
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7
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Zhou X, Xiao Q, Jiang F, Sun J, Wang L, Yu L, Zhou Y, Zhao J, Zhang H, Yuan S, Timofeeva M, Spiliopoulou A, Mesa-Eguiagaray I, Farrington SM, Law PJ, Houlston RS, Ding K, Dunlop MG, Theodoratou E, Li X. Dissecting the pathogenic effects of smoking and its hallmarks in blood DNA methylation on colorectal cancer risk. Br J Cancer 2023; 129:1306-1313. [PMID: 37608097 PMCID: PMC10576058 DOI: 10.1038/s41416-023-02397-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/30/2023] [Accepted: 08/07/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Tobacco smoking is suggested as a risk factor for colorectal cancer (CRC), but the complex relationship and the potential pathway are not fully understood. METHODS We performed two-sample Mendelian randomisation (MR) analyses with genetic instruments for smoking behaviours and related DNA methylation in blood and summary-level GWAS data of colorectal cancer to disentangle the relationship. Colocalization analyses and prospective gene-environment interaction analyses were also conducted as replication. RESULTS Convincing evidence was identified for the pathogenic effect of smoking initiation on CRC risk and suggestive evidence was observed for the protective effect of smoking cessation in the univariable MR analyses. Multivariable MR analysis revealed that these associations were independent of other smoking phenotypes and alcohol drinking. Genetically predicted methylation at CpG site cg17823346 [ZMIZ1] were identified to decrease CRC risk; while genetically predicted methylation at cg02149899 would increase CRC risk. Colocalization and gene-environment interaction analyses added further evidence to the relationship between epigenetic modification at cg17823346 [ZMIZ1] as well as cg02149899 and CRC risk. DISCUSSION Our study confirms the significant association between tobacco smoking, DNA methylation and CRC risk and yields a novel insight into the pathogenic effect of tobacco smoking on CRC risk.
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Affiliation(s)
- Xuan Zhou
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Centre for Population Health Sciences, Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Qian Xiao
- Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fangyuan Jiang
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Sun
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lijuan Wang
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Lili Yu
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yajing Zhou
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhui Zhao
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Han Zhang
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Timofeeva
- Danish Institute for Advanced Study (DIAS), Epidemiology, Biostatistics and Biodemography Research Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Athina Spiliopoulou
- Centre for Population Health Sciences, Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Ines Mesa-Eguiagaray
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- Cancer Research UK Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Philip J Law
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, UK
| | - Richard S Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, UK
| | - Kefeng Ding
- Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Malcolm G Dunlop
- Cancer Research UK Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Colon Cancer Genetics Group, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Evropi Theodoratou
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Xue Li
- Department of Big Data in Health Science School of Public Health, and Centre of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK.
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8
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Xie Z, Zhu R, Huang X, Yao F, Jin S, Huang Q, Wang D, Li H, Wang Q, Long H, Wu Q. Metabolomic analysis of gut metabolites in patients with colorectal cancer: Association with disease development and outcome. Oncol Lett 2023; 26:358. [PMID: 37545617 PMCID: PMC10398631 DOI: 10.3892/ol.2023.13944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 05/16/2023] [Indexed: 08/08/2023] Open
Abstract
Colorectal cancer (CRC) is one of the leading global malignancies with low 5-year survival and high mortality rates. Despite extensive research, the precise role of gut metabolites in CRC development and clinical outcomes remains unclear, while its elucidation may aid the development of improved clinical diagnosis and treatment options. In the present study, targeted metabolomic analysis was conducted on fecal samples from 35 patients with CRC, 37 patients with colorectal adenoma and 30 healthy controls (HC) to identify metabolite biomarkers. Using orthogonal partial least squares discriminant analysis, metabolomic features distinguishing the three groups were identified. Receiver operating characteristic (ROC) curve analysis was used to assess diagnostic utility for distinguishing CRC from HC. The association of gut metabolites with survival in patients with CRC was also analyzed by comparing short-term survivors (STS) and long-term survivors (LTS), and the prognostic ability of metabolites was predicted using Cox regression and Kaplan-Meier analysis. The results of the current study showed that the enriched pathways in CRC included 'caffeine metabolism', 'thiamine metabolism', 'phenylalanine, tyrosine and tryptophan biosynthesis' and 'phenylalanine metabolism'. ROC analysis found that 9,10-dihydroxy-12-octadecenoic acid, cholesterol ester (18:2) and lipoxinA4 distinguished CRC from HC. Joint quantification of these three metabolites resulted in an area under the ROC curve of 0.969 in the diagnosis of CRC. The analysis of the current study also showed that the expression of metabolites involved in 'sphingolipid metabolism' was mainly dysregulated in LTS and STS, while N-acetylmannosamine and 2,5-dihydroxybenzaldehyde were associated with better overall survival. In conclusion, the present study provided preliminary insight into the metabolic changes associated with CRC and may have important implications for the development of future diagnostic and treatment strategies.
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Affiliation(s)
- Zhufu Xie
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Rui Zhu
- Department of Gastroenterology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei 430064, P.R. China
| | - Xiaoying Huang
- Department of Public Health, The First Hospital of Wuhan, Wuhan, Hubei 430000, P.R. China
| | - Fei Yao
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Shu Jin
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Qiyou Huang
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Dequan Wang
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Huan Li
- Department of Gastroenterology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei 430064, P.R. China
| | - Qiang Wang
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
| | - Hui Long
- Department of Gastroenterology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei 430064, P.R. China
| | - Qingming Wu
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei 430065, P.R. China
- Department of Gastroenterology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei 430064, P.R. China
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9
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Wu X, Yan H, Qiu M, Qu X, Wang J, Xu S, Zheng Y, Ge M, Yan L, Liang L. Comprehensive characterization of tumor microenvironment in colorectal cancer via molecular analysis. eLife 2023; 12:e86032. [PMID: 37267125 PMCID: PMC10238095 DOI: 10.7554/elife.86032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/10/2023] [Indexed: 06/04/2023] Open
Abstract
Colorectal cancer (CRC) remains a challenging and deadly disease with high tumor microenvironment (TME) heterogeneity. Using an integrative multi-omics analysis and artificial intelligence-enabled spatial analysis of whole-slide images, we performed a comprehensive characterization of TME in colorectal cancer (CCCRC). CRC samples were classified into four CCCRC subtypes with distinct TME features, namely, C1 as the proliferative subtype with low immunogenicity; C2 as the immunosuppressed subtype with the terminally exhausted immune characteristics; C3 as the immune-excluded subtype with the distinct upregulation of stromal components and a lack of T cell infiltration in the tumor core; and C4 as the immunomodulatory subtype with the remarkable upregulation of anti-tumor immune components. The four CCCRC subtypes had distinct histopathologic and molecular characteristics, therapeutic efficacy, and prognosis. We found that the C1 subtype may be suitable for chemotherapy and cetuximab, the C2 subtype may benefit from a combination of chemotherapy and bevacizumab, the C3 subtype has increased sensitivity to the WNT pathway inhibitor WIKI4, and the C4 subtype is a potential candidate for immune checkpoint blockade treatment. Importantly, we established a simple gene classifier for accurate identification of each CCCRC subtype. Collectively our integrative analysis ultimately established a holistic framework to thoroughly dissect the TME of CRC, and the CCCRC classification system with high biological interpretability may contribute to biomarker discovery and future clinical trial design.
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Affiliation(s)
- Xiangkun Wu
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
| | - Hong Yan
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Mingxing Qiu
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
| | - Xiaoping Qu
- Nanjing Simcere Medical Laboratory Science Co., LtdNanjingChina
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., LtdNanjingChina
| | - Jing Wang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
| | - Shaowan Xu
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
| | - Yiran Zheng
- Nanjing Simcere Medical Laboratory Science Co., LtdNanjingChina
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., LtdNanjingChina
| | - Minghui Ge
- Nanjing Simcere Medical Laboratory Science Co., LtdNanjingChina
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., LtdNanjingChina
| | - Linlin Yan
- Nanjing Simcere Medical Laboratory Science Co., LtdNanjingChina
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., LtdNanjingChina
| | - Li Liang
- Department of Pathology, Nanfang Hospital/School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Department of Pathology and Guangdong Province Key Laboratory of Molecular Tumor Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhouChina
- Jinfeng LaboratoryChongqingChina
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10
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Zhan L, Sun C, Zhang Y, Zhang Y, Jia Y, Wang X, Li F, Li D, Wang S, Yu T, Zhang J, Li D. Four methylation-driven genes detected by linear discriminant analysis model from early-stage colorectal cancer and their methylation levels in cell-free DNA. Front Oncol 2022; 12:949244. [PMID: 36158666 PMCID: PMC9491101 DOI: 10.3389/fonc.2022.949244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/12/2022] [Indexed: 12/24/2022] Open
Abstract
The process of colorectal cancer (CRC) formation is considered a typical model of multistage carcinogenesis in which aberrant DNA methylation plays an important role. In this study, 752 methylation-driven genes (MDGs) were identified by the MethylMix package based on methylation and gene expression data of CRC in The Cancer Genome Atlas (TCGA). Iterative recursive feature elimination (iRFE) based on linear discriminant analysis (LDA) was used to determine the minimum MDGs (iRFE MDGs), which could distinguish between cancer and cancer-adjacent tissues. Further analysis indicated that the changes in methylation levels of the four iRFE MDGs, ADHFE1-Cluster1, CNRIP1-Cluster1, MAFB, and TNS4, occurred in adenoma tissues, while changes did not occur until stage IV in cell-free DNA. Furthermore, the methylation levels of iRFE MDGs were correlated with the genes involved in the reprogramming process of somatic cells to pluripotent stem cells, which is considered the common signature of cancer cells and embryonic stem cells. The above results indicated that the four iRFE MDGs may play roles in the early stage of colorectal carcinogenesis and highlighted the complicated relationship between tissue DNA and cell-free DNA (cfDNA).
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Affiliation(s)
- Lei Zhan
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, China
| | - Changjian Sun
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Yu Zhang
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Yue Zhang
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Yuzhe Jia
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Xiaoyan Wang
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Feifei Li
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, China
| | - Donglin Li
- Orthopedics Department, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Shen Wang
- Department of Ultrasound and Special Diagnosis, Air Force Hospital of Northern Theater, PLA, Shenyang, China
| | - Tao Yu
- Nursing Department, Air Force Medical Center, PLA, Beijing, China
| | - Jingdong Zhang
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, China
| | - Deyang Li
- Clinical Laboratory, Air Force Hospital of Northern Theater, PLA, Shenyang, China
- *Correspondence: Deyang Li,
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11
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Xu L, Zhang J, Sun J, Hou K, Yang C, Guo Y, Liu X, Kalvakolanu DV, Zhang L, Guo B. Epigenetic regulation of cancer stem cells: Shedding light on the refractory/relapsed cancers. Biochem Pharmacol 2022; 202:115110. [PMID: 35640714 DOI: 10.1016/j.bcp.2022.115110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 02/05/2023]
Abstract
The resistance to drugs, ability to enter quiescence and generate heterogeneous cancer cells, and enhancement of aggressiveness, make cancer stem cells (CSCs) integral part of tumor progression, metastasis and recurrence after treatment. The epigenetic modification machinery is crucial for the viability of CSCs and evolution of aggressive forms of a tumor. These mechanisms can also be targeted by specific drugs, providing a promising approach for blocking CSCs. In this review, we summarize the epigenetic regulatory mechanisms in CSCs which contribute to drug resistance, quiescence and tumor heterogeneity. We also discuss the drugs that can potentially target these processes and data from experimental and clinical studies.
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Affiliation(s)
- Libo Xu
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, PR China; Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Jinghua Zhang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Jicheng Sun
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Kunlin Hou
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Chenxin Yang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Ying Guo
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Xiaorui Liu
- Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China
| | - Dhan V Kalvakolanu
- Greenebaum NCI Comprehensive Cancer Center, Department of Microbiology and Immunology, University of Maryland School Medicine, Baltimore, MD, USA
| | - Ling Zhang
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, PR China; Key Laboratory of Pathobiology, Ministry of Education, and Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, PR China.
| | - Baofeng Guo
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, PR China.
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12
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Fatemi N, Tierling S, Es HA, Varkiani M, Nazemalhosseini Mojarad E, Asadzadeh Aghdaei H, Walter J, Totonchi M. DNA Methylation Biomarkers in Colorectal Cancer: Clinical Applications for Precision Medicine. Int J Cancer 2022; 151:2068-2081. [PMID: 35730647 DOI: 10.1002/ijc.34186] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/29/2022] [Accepted: 06/08/2022] [Indexed: 11/06/2022]
Abstract
Colorectal cancer (CRC) is the second leading cause of cancer death worldwide that is attributed to gradual long-term accumulation of both genetic and epigenetic changes. To reduce the mortality rate of CRC and to improve treatment efficacy, it will be important to develop accurate noninvasive diagnostic tests for screening, acute, and personalized diagnosis. Epigenetic changes such as DNA methylation play an important role in the development and progression of CRC. Over the last decade, a panel of DNA methylation markers has been reported showing a high accuracy and reproducibility in various semi-invasive or noninvasive biosamples. Research to obtain comprehensive panels of markers allowing a highly sensitive and differentiating diagnosis of CRC is ongoing. Moreover, the epigenetic alterations for cancer therapy, as a precision medicine strategy will increase their therapeutic potential over time. Here, we discuss the current state of DNA methylation-based biomarkers and their impact on CRC diagnosis. We emphasize the need to further identify and stratify methylation-biomarkers and to develop robust and effective detection methods that are applicable for a routine clinical setting of CRC diagnostics particularly at the early stage of the disease.
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Affiliation(s)
- Nayeralsadat Fatemi
- Basic & Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology & Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sascha Tierling
- Department of Genetics/Epigenetics, Faculty NT, Life Sciences, Saarland University, Saarbrücken, Germany
| | | | - Maryam Varkiani
- Department of Molecular Genetics, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
| | - Ehsan Nazemalhosseini Mojarad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic & Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology & Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jörn Walter
- Department of Genetics/Epigenetics, Faculty NT, Life Sciences, Saarland University, Saarbrücken, Germany
| | - Mehdi Totonchi
- Basic & Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology & Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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13
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Guo X, Yue L, Li M, Dai A, Sun J, Fang L, Zhao H, Sun Q. Nuclear receptor estrogen-related receptor gamma suppresses colorectal cancer aggressiveness by regulating Wnt/β-catenin signalling. Carcinogenesis 2022; 43:865-873. [PMID: 35728800 DOI: 10.1093/carcin/bgac054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/22/2022] [Accepted: 06/21/2022] [Indexed: 12/09/2022] Open
Abstract
Colorectal cancer is the predominant cause of cancer-related death worldwide, because of lack of effective therapeutic targets. Estrogen-related receptor gamma (ESRRG), which belongs to the family of nuclear receptors, functions as an important element regulating gene transcription. In our report, we identified ESRRG as a potential tumor suppressor. The decreased level of ESRRG was initially observed in CRC and was highly associated with poor prognosis. ESRRG overexpression abrogated cell growth and metastasis in vitro and in vivo. Mechanistically, ESRRG repressed the epithelial-to-mesenchymal transition (EMT) process and antagonized Wnt signaling by regulating β-catenin degradation. In addition, significant ESRRG hypermethylation was found in CRC and inversely correlated with its expression. Consistently, the expression of ESRRG was induced after treatment with DNA demethylating agent 5-AZA. Taken together, these findings define a tumor-suppressive role of ESRRG in CRC, providing a potential novel therapeutic approach for this cancer.
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Affiliation(s)
- Xiaohong Guo
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Longtao Yue
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Min Li
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Ang Dai
- Department of Pathology and Pathophysiology, Weifang Medical University, Weifang, Shandong, China
| | - Junying Sun
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Lei Fang
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Hai Zhao
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
| | - Qing Sun
- Department of Pathology, The First Affiliated Hospital, Shandong First Medical University& Shandong Qianfoshan Hospital, Jinan, Shandong, China
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14
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Wang C, Tang Y, Ma H, Wei S, Hu X, Zhao L, Wang G. Identification of Hypoxia-Related Subtypes, Establishment of Prognostic Models, and Characteristics of Tumor Microenvironment Infiltration in Colon Cancer. Front Genet 2022; 13:919389. [PMID: 35783281 PMCID: PMC9247151 DOI: 10.3389/fgene.2022.919389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Immunotherapy is a treatment that can significantly improve the prognosis of patients with colon cancer, but the response to immunotherapy is different in patients with colon cancer because of the heterogeneity of colon carcinoma and the complex nature of the tumor microenvironment (TME). In the precision therapy mode, finding predictive biomarkers that can accurately identify immunotherapy-sensitive types of colon cancer is essential. Hypoxia plays an important role in tumor proliferation, apoptosis, angiogenesis, invasion and metastasis, energy metabolism, and chemotherapy and immunotherapy resistance. Thus, understanding the mechanism of hypoxia-related genes (HRGs) in colon cancer progression and constructing hypoxia-related signatures will help enrich our treatment strategies and improve patient prognosis. Methods: We obtained the gene expression data and corresponding clinical information of 1,025 colon carcinoma patients from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) databases, respectively. We identified two distinct hypoxia subtypes (subtype A and subtype B) according to unsupervised clustering analysis and assessed the clinical parameters, prognosis, and TME cell-infiltrating characteristics of patients in the two subtypes. We identified 1,132 differentially expressed genes (DEGs) between the two hypoxia subtypes, and all patients were randomly divided into the training group (n = 513) and testing groups (n = 512). Following univariate Cox regression with DEGs, we construct the prognostic model (HRG-score) including six genes (S1PR3, ETV5, CD36, FOXC1, CXCL10, and MMP12) through the LASSO–multivariate cox method in the training group. We comprehensively evaluated the sensitivity and applicability of the HRG-score model from the training group and the testing group, respectively. We explored the correlation between HRG-score and clinical parameters, tumor microenvironment, cancer stem cells (CSCs), and MMR status. In order to evaluate the value of the risk model in clinical application, we further analyzed the sensitivity of chemotherapeutics and immunotherapy between the low-risk group and high-risk group and constructed a nomogram for improving the clinical application of the HRG-score. Result: Subtype A was significantly enriched in metabolism-related pathways, and subtype B was significantly enriched in immune activation and several tumor-associated pathways. The level of immune cell infiltration and immune checkpoint-related genes, stromal score, estimate score, and immune dysfunction and exclusion (TIDE) prediction score was significantly different in subtype A and subtype B. The level of immune checkpoint-related genes and TIDE score was significantly lower in subtype A than that in subtype B, indicating that subtype A might benefit from immune checkpoint inhibitors. Finally, an HRG-score signature for predicting prognosis was constructed through the training group, and the predictive capability was validated through the testing group. The survival analysis and correlation analysis of clinical parameters revealed that the prognosis of patients in the high-risk group was significantly worse than that in the low-risk group. There were also significant differences in immune status, mismatch repair status (MMR), and cancer stem cell index (CSC), between the two risk groups. The correlation analysis of risk scores with IC50 and IPS showed that patients in the low-risk group had a higher benefit from chemotherapy and immunotherapy than those in the high-risk group, and the external validation IMvigor210 demonstrated that patients with low risk were more sensitive to immunotherapy. Conclusion: We identified two novel molecular subgroups based on HRGs and constructed an HRG-score model consisting of six genes, which can help us to better understand the mechanisms of hypoxia-related genes in the progression of colon cancer and identify patients susceptible to chemotherapy or immunotherapy, so as to achieve precision therapy for colon cancer.
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Affiliation(s)
- Changjing Wang
- Department of Gastrointestinal Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yujie Tang
- Department of Gastrointestinal Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongqing Ma
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Sisi Wei
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xuhua Hu
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lianmei Zhao
- Research Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Guiying Wang, ; Lianmei Zhao,
| | - Guiying Wang
- Department of Gastrointestinal Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Guiying Wang, ; Lianmei Zhao,
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15
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Lyu M, Zhou J, Jiao L, Wang Y, Zhou Y, Lai H, Xu W, Ying B. Deciphering a TB-related DNA methylation biomarker and constructing a TB diagnostic classifier. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:37-49. [PMID: 34938605 PMCID: PMC8645423 DOI: 10.1016/j.omtn.2021.11.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 11/16/2021] [Indexed: 02/09/2023]
Abstract
We systemically identified tuberculosis (TB)-related DNA methylation biomarkers and further constructed classifiers for TB diagnosis. TB-related DNA methylation datasets were searched through October 3, 2020. Limma and DMRcate were employed to identify differentially methylated probes (DMPs) and regions (DMRs). Machine learning methods were used to construct classifiers. The performance of the classifiers was evaluated in discovery datasets and a prospective independent cohort. Eighty-nine DMPs and 24 DMRs were identified based on 67 TB patients and 45 healthy controls from 4 datasets. Nine and three DMRs were selected by elastic net regression and logistic regression, respectively. Among the selected DMRs, two regions (chr3: 195635643-195636243 and chr6: 29691631-29692475) were differentially methylated in the independent cohort (p = 4.19 × 10-5 and 0.024, respectively). Among the ten classifiers, the 3-DMR logistic regression classifier exhibited the strongest performance. The sensitivity, specificity, and area under the curve were, respectively, 79.1%, 84.4%, and 0.888 in the discovery datasets and 64.5%, 90.3%, and 0.838 in the independent cohort. The differential diagnostic ability of this classifier was also assessed. Collectively, these data showed that DNA methylation might be a promising TB diagnostic biomarker. The 3-DMR logistic regression classifier is a potential clinical tool for TB diagnosis, and further validation is needed.
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Affiliation(s)
- Mengyuan Lyu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China.,West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jian Zhou
- West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China.,Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lin Jiao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China.,West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yili Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China.,West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yanbing Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China.,West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hongli Lai
- West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wei Xu
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, 10-511, 610 University Avenue, Toronto, ON M5G 2M9 Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7 Canada
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China.,West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
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16
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Application of droplet digital polymerase chain reaction of plasma methylated septin 9 on detection and early monitoring of colorectal cancer. Sci Rep 2021; 11:23446. [PMID: 34873218 PMCID: PMC8648834 DOI: 10.1038/s41598-021-02879-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 11/24/2021] [Indexed: 02/06/2023] Open
Abstract
Methylated septin 9 (SEPT9) has been approved for non-invasive screening of colorectal cancer (CRC), but data on monitoring of CRC is sparse. Droplet digital polymerase chain reaction (ddPCR), with higher detection precision and simpler quantification than conventional PCR, has not been applied in SEPT9 detection. We explored the role of SEPT9 ddPCR for CRC detection and to measure serial SEPT9 levels in blood samples of CRC patients before and 3-month after surgery. SEPT9 methylated ratio, methylated abundance, and CEA levels were all higher in CRC patients than normal controls (all P < 0.05). The area under the curve (AUC) for methylated ratio and abundance to detect CRC was 0.707 and 0.710, respectively. There was an increasing trend for SEPT9 methylated abundance from proximal to distal cancers (P = 0.017). At 3-month after surgery, both methylated abundance and ratio decreased (P = 0.005 and 0.053, respectively), especially methylated abundance in stage III and distal cancer (both P < 0.01). We have developed a ddPCR platform for the quantitative detection of plasma SEPT9 in CRC patients. SEPT9 methylated abundance had an early post-operative decline, which may be useful in monitoring of treatment response.
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17
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Pulverer W, Kruusmaa K, Schönthaler S, Huber J, Bitenc M, Bachleitner-Hofmann T, Bhangu JS, Oehler R, Egger G, Weinhäusel A. Multiplexed DNA Methylation Analysis in Colorectal Cancer Using Liquid Biopsy and Its Diagnostic and Predictive Value. Curr Issues Mol Biol 2021; 43:1419-1435. [PMID: 34698107 PMCID: PMC8929153 DOI: 10.3390/cimb43030100] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 12/24/2022] Open
Abstract
Early diagnosis of colorectal cancer (CRC) is of high importance as prognosis depends on tumour stage at the time of diagnosis. Detection of tumour-specific DNA methylation marks in cfDNA has several advantages over other approaches and has great potential for solving diagnostic needs. We report here the identification of DNA methylation biomarkers for CRC and give insights in our methylation-sensitive restriction enzyme coupled qPCR (MSRE-qPCR) system. Targeted microarrays were used to investigate the DNA methylation status of 360 cancer-associated genes. Validation was done by qPCR-based approaches. A focus was on investigating marker performance in cfDNA from 88 patients (44 CRC, 44 controls). Finally, the workflow was scaled-up to perform 180plex analysis on 110 cfDNA samples, to identify a DNA methylation signature for advanced colonic adenomas (AA). A DNA methylation signature (n = 44) was deduced from microarray experiments and confirmed by quantitative methylation-specific PCR (qMSP) and by MSRE-qPCR, providing for six genes’ single areas under the curve (AUC) values of >0.85 (WT1, PENK, SPARC, GDNF, TMEFF2, DCC). A subset of the signatures can be used for patient stratification and therapy monitoring for progressed CRC with liver metastasis using cfDNA. Furthermore, we identified a 35-plex classifier for the identification of AAs with an AUC of 0.80.
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Affiliation(s)
- Walter Pulverer
- Molecular Diagnostics, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria; (S.S.); (J.H.); (A.W.)
- Correspondence: (W.P.); (K.K.)
| | - Kristi Kruusmaa
- Universal Diagnostics S.L., 41013 Seville, Spain;
- Correspondence: (W.P.); (K.K.)
| | - Silvia Schönthaler
- Molecular Diagnostics, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria; (S.S.); (J.H.); (A.W.)
| | - Jasmin Huber
- Molecular Diagnostics, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria; (S.S.); (J.H.); (A.W.)
| | - Marko Bitenc
- Universal Diagnostics S.L., 41013 Seville, Spain;
- Geneplanet d.o.o., 1000 Ljubljana, Slovenia
| | | | - Jagdeep Singh Bhangu
- Department of Surgery, Medical University of Vienna, 1090 Vienna, Austria; (T.B.-H.); (J.S.B.); (R.O.)
| | - Rudolf Oehler
- Department of Surgery, Medical University of Vienna, 1090 Vienna, Austria; (T.B.-H.); (J.S.B.); (R.O.)
| | - Gerda Egger
- Clinical Institute of Pathology, Medical University of Vienna, 1090 Vienna, Austria;
- Ludwig Boltzmann Institute Applied Diagnostics, 1090 Vienna, Austria
| | - Andreas Weinhäusel
- Molecular Diagnostics, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria; (S.S.); (J.H.); (A.W.)
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18
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Wang YH, Chang SC, Ansar M, Hung CS, Lin RK. Eps15 Homology Domain-Containing Protein 3 Hypermethylation as a Prognostic and Predictive Marker for Colorectal Cancer. Biomedicines 2021; 9:biomedicines9050453. [PMID: 33922189 PMCID: PMC8145505 DOI: 10.3390/biomedicines9050453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) arises from chromosomal instability, resulting from aberrant hypermethylation in tumor suppressor genes. This study identified hypermethylated genes in CRC and investigated how they affect clinical outcomes. Methylation levels of specific genes were analyzed from The Cancer Genome Atlas dataset and 20 breast cancer, 16 esophageal cancer, 33 lung cancer, 15 uterine cancer, 504 CRC, and 9 colon polyp tissues and 102 CRC plasma samples from a Taiwanese cohort. In the Asian cohort, Eps15 homology domain-containing protein 3 (EHD3) had twofold higher methylation in 44.4% of patients with colonic polyps, 37.3% of plasma from CRC patients, and 72.6% of CRC tissues, which was connected to vascular invasion and high microsatellite instability. Furthermore, EHD3 hypermethylation was detected in other gastrointestinal cancers. In the Asian CRC cohort, low EHD3 mRNA expression was found in 45.1% of patients and was connected to lymph node metastasis. Multivariate Cox proportional-hazards survival analysis revealed that hypermethylation in women and low mRNA expression were associated with overall survival. In the Western CRC cohort, EHD3 hypermethylation was also connected to overall survival and lower chemotherapy and antimetabolite response rates. In conclusion, EHD3 hypermethylation contributes to the development of CRC in both Asian and Western populations.
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Affiliation(s)
- Yu-Han Wang
- School of Medicine, Tzu Chi University, Hualien City 97071, Taiwan;
| | - Shih-Ching Chang
- Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
| | - Muhamad Ansar
- Ph.D. Program in the Clinical Drug Development of Herbal Medicine, Taipei Medical University, Taipei 11031, Taiwan;
| | - Chin-Sheng Hung
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
| | - Ruo-Kai Lin
- Ph.D. Program in the Clinical Drug Development of Herbal Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei 11031, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, Taipei 11031, Taiwan
- Clinical Trial Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Correspondence:
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19
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Liu J, Jiang C, Xu C, Wang D, Shen Y, Liu Y, Gu L. Identification and development of a novel invasion-related gene signature for prognosis prediction in colon adenocarcinoma. Cancer Cell Int 2021; 21:101. [PMID: 33579281 PMCID: PMC7881672 DOI: 10.1186/s12935-021-01795-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/27/2021] [Indexed: 12/14/2022] Open
Abstract
The overall survival of metastatic colon adenocarcinoma (COAD) remains poor, so it is important to explore the mechanisms of metastasis and invasion. This study aimed to identify invasion-related genetic markers for prognosis prediction in patients with COAD. Three molecular subtypes (C1, C2, and C3) were obtained based on 97 metastasis-related genes in 365 COAD samples from The Cancer Genome Atlas (TCGA). A total of 983 differentially expressed genes (DEGs) were identified among the different subtypes by using the limma package. A 6-gene signature (ITLN1, HOXD9, TSPAN11, GPRC5B, TIMP1, and CXCL13) was constructed via Lasso-Cox analysis. The signature showed strong robustness and could be used in the training, testing, and external validation (GSE17537) cohorts with stable predictive efficiency. Compared with other published signatures, our model showed better performance in predicting outcomes. Pan-cancer expression analysis results showed that ITLN1, TSPAN11, CXCL13, and GPRC5B were downregulated and TIMP1 was upregulated in most tumor samples, including COAD, which was consistent with the results of the TCGA and GEO cohorts. Western blot analysis and immunohistochemistry were performed to validate protein expression. Tumor immune infiltration analysis results showed that TSPAN11, GPRC5B, TIMP1, and CXCL13 protein levels were significantly positively correlated with CD4+ T cells, macrophages, neutrophils, and dendritic cells. Further, the TIMP1 and CXCL13 proteins were significantly related to the tumor immune infiltration of CD8+ T cells. We recommend using our signature as a molecular prognostic classifier to assess the prognostic risk of patients with COAD.
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Affiliation(s)
- Jiahua Liu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunhui Jiang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunjie Xu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dongyang Wang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuguang Shen
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ye Liu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Gu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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20
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Yang CM, Kang MK, Jung WJ, Joo JS, Kim YJ, Choi Y, Kim HP. p53 expression confers sensitivity to 5-fluorouracil via distinct chromatin accessibility dynamics in human colorectal cancer. Oncol Lett 2021; 21:226. [PMID: 33613715 PMCID: PMC7856692 DOI: 10.3892/ol.2021.12487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/03/2020] [Indexed: 12/12/2022] Open
Abstract
One of the most commonly used drugs in chemotherapy, 5-fluorouracil (5-FU) has been shown to be effective in only 10-15% of patients with colon cancer. Thus, studies of the mechanisms affecting 5-FU sensitivity in these patients are necessary. The tumor suppressor protein p53 is a transcription factor that serves important roles in cell apoptosis by regulating the cell cycle. It has also been characterized as a key factor influencing drug sensitivity. Furthermore, accessible chromatin is a hallmark of active DNA regulatory elements and functions as a crucial epigenetic factor regulating cancer mechanisms. The present study assessed the genetic regulatory landscape in colon cancer by performing RNA sequencing and Assay for Transposase-Accessible Chromatin sequencing, and investigated the effects of 5-FU on chromatin accessibility and gene expression. Notably, while treatment with 5-FU mediated global increases in chromatin accessibility, chromatin organization in several genomic regions differed depending on the expression status of p53. Since the occupancy of p53 does not overlap with accessible chromatin regions, the 5-FU-mediated changes in chromatin accessibility were not regulated by direct binding of p53. In the p53-expressing condition, the 5-FU-mediated accessible chromatin region was primarily associated with genes encoding cell death pathways. Additionally, 5-FU was revealed to induce open chromatin conformation at regions containing binding motifs for AP-1 family transcription factors, which may drive expression of apoptosis pathway genes. In conclusion, expression of p53 may confer 5-FU sensitivity by regulating chromatin accessibility of distinct genes associated with cell apoptosis in a transcription-independent manner.
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Affiliation(s)
- Chul Min Yang
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Moo-Koo Kang
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Woong-Jae Jung
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Jung-Sik Joo
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Yong-Jin Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Yeeun Choi
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Hyoung-Pyo Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.,Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
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21
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Lai C, Wu F, Wang Y, Wang W, Li Y, Zhang G, Gao J, Zhu Z, Yuan J, Yang J, Zhang W. Specific epigenetic microenvironment and the regulation of tumor-related gene expression by trichloroethylene in human hepatocytes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111453. [PMID: 33068984 DOI: 10.1016/j.ecoenv.2020.111453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Trichloroethylene (TCE), an important volatile organic solvent, causes a series of toxic damage to human. Conventional genetic mechanisms cannot fully explain its toxicity and carcinogenicity, indicative of the possible involvement of epigenetic mechanisms. Our study was intended to investigate the epigenetic toxicity and underlying mechanisms of TCE. Data showed that 0.3 mM TCE treatment for 24 h increased the growth of L-02 cells transiently. In contrast, subacute exposure to TCE inhibited cell growth and induced the genomic DNA hypomethylation and histone hyperacetylation. Further studies have revealed the TCE-induced DNA hypomethylation in the promoter regions of tumor-related genes, N-Ras, c-Jun, c-Myc, c-Fos and IGF-II, promoting their protein levels in a time-dependent manner. These results reveal there is a negative relationship existing between DNA hypomethylation and protein expression in tumor-related gene after TCE exposure under specific epigenetic microenvironment, serving as early biomarkers for TCE-associated diseases.
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Affiliation(s)
- Caiyun Lai
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Fan Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Yan Wang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Wei Wang
- Department of Occupational Health and Occupational Diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Yueqi Li
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Gaoqiang Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Jianji Gao
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Zhiliang Zhu
- Baoan District Center for Disease Control and Prevention, Shenzhen, Guangdong 518101, PR China
| | - Jianhui Yuan
- Nanshan District Center for Disease Control and Prevention, Shenzhen, Guangdong 518054, PR China
| | - Jianping Yang
- Shenzhen Taike Test Co., Ltd, Shenzhen, Guangdong 518053, PR China.
| | - Wenjuan Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, PR China.
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22
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Beck D, Ben Maamar M, Skinner MK. Integration of sperm ncRNA-directed DNA methylation and DNA methylation-directed histone retention in epigenetic transgenerational inheritance. Epigenetics Chromatin 2021; 14:6. [PMID: 33436057 PMCID: PMC7802319 DOI: 10.1186/s13072-020-00378-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/12/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Environmentally induced epigenetic transgenerational inheritance of pathology and phenotypic variation has been demonstrated in all organisms investigated from plants to humans. This non-genetic form of inheritance is mediated through epigenetic alterations in the sperm and/or egg to subsequent generations. Although the combined regulation of differential DNA methylated regions (DMR), non-coding RNA (ncRNA), and differential histone retention (DHR) have been shown to occur, the integration of these different epigenetic processes remains to be elucidated. The current study was designed to examine the integration of the different epigenetic processes. RESULTS A rat model of transiently exposed F0 generation gestating females to the agricultural fungicide vinclozolin or pesticide DDT (dichloro-diphenyl-trichloroethane) was used to acquire the sperm from adult males in the subsequent F1 generation offspring, F2 generation grand offspring, and F3 generation great-grand offspring. The F1 generation sperm ncRNA had substantial overlap with the F1, F2 and F3 generation DMRs, suggesting a potential role for RNA-directed DNA methylation. The DMRs also had significant overlap with the DHRs, suggesting potential DNA methylation-directed histone retention. In addition, a high percentage of DMRs induced in the F1 generation sperm were maintained in subsequent generations. CONCLUSIONS Many of the DMRs, ncRNA, and DHRs were colocalized to the same chromosomal location regions. Observations suggest an integration of DMRs, ncRNA, and DHRs in part involve RNA-directed DNA methylation and DNA methylation-directed histone retention in epigenetic transgenerational inheritance.
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Affiliation(s)
- Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA.
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23
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Zhu X, Li S, Xu B, Luo H. Cancer evolution: A means by which tumors evade treatment. Biomed Pharmacother 2020; 133:111016. [PMID: 33246226 DOI: 10.1016/j.biopha.2020.111016] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022] Open
Abstract
Although various methods have been tried to study and treat cancer, the cancer remains a major challenge for human medicine today. One important reason for this is the presence of cancer evolution. Cancer evolution is a process in which tumor cells adapt to the external environment, which can suppress the human immune system's ability to recognize and attack tumors, and also reduce the reproducibility of cancer research. Among them, heterogeneity of the tumor provides intrinsic motivation for this process. Recently, with the development of related technologies such as liquid biopsy, more and more knowledge about cancer evolution has been gained and interest in this topic has also increased. Therefore, starting from the causes of tumorigenesis, this paper introduces several tumorigenesis processes and pathways, as well as treatment options for different targets.
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Affiliation(s)
- Xiao Zhu
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China; Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China.
| | - Shi Li
- Guangdong Key Laboratory of Urogenital Tumor Systems and Synthetic Biology, The First Affiliated Hospital of Shenzhen University, The Second People's Hospital of Shenzhen, Shenzhen, China; Shenzhen Key Laboratory of Genitourinary Tumor, Translational Medicine Institute of Shenzhen, The Second People's Hospital of Shenzhen, Shenzhen, China; College of Bioengineering, Chongqing University, Chongqing, China
| | - Bairui Xu
- The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu Gulf Rim, Guangdong Medical University, Zhanjiang, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjian, China
| | - Hui Luo
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China; Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China; The Key Lab of Zhanjiang for R&D Marine Microbial Resources in the Beibu Gulf Rim, Guangdong Medical University, Zhanjiang, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjian, China.
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24
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Guo X, Song C, Fang L, Li M, Yue L, Sun Q. FLRT2 functions as Tumor Suppressor gene inactivated by promoter methylation in Colorectal Cancer. J Cancer 2020; 11:7329-7338. [PMID: 33193897 PMCID: PMC7646184 DOI: 10.7150/jca.47558] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 10/11/2020] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer death worldwide. Epigenetic alterations, especially DNA methylation, contribute to the initiation and progression of CRC. To identify novel methylated tumor suppressors in CRC, MethylRAD-Seq screening was performed. As the result, FLRT2 was found to be preferentially methylated. In the present study, we aimed to elucidate the epigenetic regulations and biological functions of FLRT2 in CRC. Significant FLRT2 hypermethylation was initially confirmed in CRC samples and cell lines. Meanwhile, downregulated expression of FLRT2 was observed in CRC, which is probably attributed to promoter methylation of FLRT2. Consistently, the expression of FLRT2 was restored after treatment with DNA demethylating agent 5-AZA. FLRT2 overexpression resulted in impaired cell viability and colony formation. Additionally, FLRT2 overexpression led to a reduction in cell migration and cell invasion. Furthermore, we also observed that FLRT2 induced cell cycle arrest. Mechanistically, these effects were associated with the downregulation of phosphor-AKT, phosphor-ERK, CDK2, Cyclin A, and MMP2, and upregulation of P21. Taken together, these results define a tumor-suppressor role of FLRT2 with epigenetic silencing in the pathogenesis of CRC. Moreover, FLRT2 promoter methylation may be a useful epigenetic biomarker for the prevention and treatment of CRC.
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Affiliation(s)
- Xiaohong Guo
- Department of Pathology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Chao Song
- Department of Pathology, Zibo Central Hospital, Zibo, Shandong, China
| | - Lei Fang
- Department of Pathology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Min Li
- Department of Pathology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Longtao Yue
- Department of Pathology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Qing Sun
- Department of Pathology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
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25
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Koni M, Pinnarò V, Brizzi MF. The Wnt Signalling Pathway: A Tailored Target in Cancer. Int J Mol Sci 2020; 21:E7697. [PMID: 33080952 PMCID: PMC7589708 DOI: 10.3390/ijms21207697] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the greatest public health challenges. According to the World Health Organization (WHO), 9.6 million cancer deaths have been reported in 2018. The most common cancers include lung, breast, colorectal, prostate, skin (non-melanoma) and stomach cancer. The unbalance of physiological signalling pathways due to the acquisition of mutations in tumour cells is considered the most common cancer driver. The Wingless-related integration site (Wnt)/β-catenin pathway is crucial for tissue development and homeostasis in all animal species and its dysregulation is one of the most relevant events linked to cancer development and dissemination. The canonical and the non-canonical Wnt/β-catenin pathways are known to control both physiological and pathological processes, including cancer. Herein, the impact of the Wnt/β-catenin cascade in driving cancers from different origin has been examined. Finally, based on the impact of Extracellular Vesicles (EVs) on tumour growth, invasion and chemoresistance, and their role as tumour diagnostic and prognostic tools, an overview of the current knowledge linking EVs to the Wnt/β-catenin pathway is also discussed.
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Affiliation(s)
| | | | - Maria Felice Brizzi
- Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126 Turin, Italy; (M.K.); (V.P.)
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26
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Synergistic tumor inhibition of colon cancer cells by nitazoxanide and obeticholic acid, a farnesoid X receptor ligand. Cancer Gene Ther 2020; 28:590-601. [PMID: 33046820 PMCID: PMC8203497 DOI: 10.1038/s41417-020-00239-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/24/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023]
Abstract
The tumor-suppressive role of Farnesoid X receptor (FXR) in colorectal tumorigenesis supports restoring FXR expression as a novel therapeutic strategy. However, the complicated signaling network and tumor heterogeneity hinder the effectiveness of FXR agonists in the clinical setting. These difficulties highlight the importance of identifying drug combinations with potency and specificity to enhance the antitumor effects of FXR agonists. In this study, we found that the β-catenin level affected the antitumor effects of the FXR agonist OCA on colon cancer cells. Mechanistic studies identified a novel FXR/β-catenin complex in colon cancer cells. Furthermore, the depletion of β-catenin expedited FXR nuclear localization and enhanced its occupancy of the SHP promoter and thereby sensitized colon cancer cells to OCA. Furthermore, we utilized a drug combination study and identified that the antiparasitic drug nitazoxanide (NTZ) abrogated β-catenin expression and acted synergistically with OCA in colon cancer cells. The combination of OCA plus NTZ exerts synergistic tumor inhibition in CRC both in vitro and in vivo by cooperatively upregulating SHP expression. In conclusion, our study offers useful evidence for the clinical use of FXR agonists combined with β-catenin inhibitors in combating CRC.
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27
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Cervena K, Siskova A, Buchler T, Vodicka P, Vymetalkova V. Methylation-Based Therapies for Colorectal Cancer. Cells 2020; 9:E1540. [PMID: 32599894 PMCID: PMC7349319 DOI: 10.3390/cells9061540] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 02/08/2023] Open
Abstract
Colorectal carcinogenesis (CRC) is caused by the gradual long-term accumulation of both genetic and epigenetic changes. Recently, epigenetic alterations have been included in the classification of the CRC molecular subtype, and this points out their prognostic impact. As epigenetic modifications are reversible, they may represent relevant therapeutic targets. DNA methylation, catalyzed by DNA methyltransferases (DNMTs), regulates gene expression. For many years, the deregulation of DNA methylation has been considered to play a substantial part in CRC etiology and evolution. Despite considerable advances in CRC treatment, patient therapy response persists as limited, and their profit from systemic therapies are often hampered by the introduction of chemoresistance. In addition, inter-individual changes in therapy response in CRC patients can arise from their specific (epi)genetic compositions. In this review article, we summarize the options of CRC treatment based on DNA methylation status for their predictive value. This review also includes the therapy outcomes based on the patient's methylation status in CRC patients. In addition, the current challenge of research is to develop therapeutic inhibitors of DNMT. Based on the essential role of DNA methylation in CRC development, the application of DNMT inhibitors was recently proposed for the treatment of CRC patients, especially in patients with DNA hypermethylation.
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Affiliation(s)
- Klara Cervena
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14 200 Prague, Czech Republic; (K.C.); (A.S.); (P.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 128 00 Prague, Czech Republic
| | - Anna Siskova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14 200 Prague, Czech Republic; (K.C.); (A.S.); (P.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 128 00 Prague, Czech Republic
| | - Tomas Buchler
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Videnska 800, 140 59 Prague, Czech Republic;
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14 200 Prague, Czech Republic; (K.C.); (A.S.); (P.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 128 00 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 323 00 Pilsen, Czech Republic
| | - Veronika Vymetalkova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14 200 Prague, Czech Republic; (K.C.); (A.S.); (P.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 128 00 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 323 00 Pilsen, Czech Republic
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28
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Zhan W, Liao X, Liu J, Tian T, Yu L, Li R. USP38 regulates the stemness and chemoresistance of human colorectal cancer via regulation of HDAC3. Oncogenesis 2020; 9:48. [PMID: 32404892 PMCID: PMC7220910 DOI: 10.1038/s41389-020-0234-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 12/19/2022] Open
Abstract
Histone modification represents a crucial level of gene expression regulation and is actively involved in the carcinogenesis of human colorectal cancer. Histone acetyltransferases and deacetylases modulate the landscape of histone acetylation, which controls key genes of colorectal cancer pathology. However, the fine tune of histone deacetylases, especially the modification of histone deacetylases that facilitate colorectal cancer, remains elusive. Here, we identified that an ubiquitin-specific protease (USP), USP38, was downregulated in clinical colorectal cancer samples and colorectal cancer cell lines. Importantly, our results showed that USP38 was a specific deubiquitinase of histone deacetylase 3 (HDAC3), which cleaved the lysine 63 ubiquitin chain. Ubiquitination of HDAC3 resulted in a decreased level of histone acetylation and finally led to upregulation of cancer stem cell-related genes. In addition, our results demonstrated a tumor suppressor role of USP38 in colorectal cancer via inhibiting cancer stem cell populations. Most importantly, the ubiquitination level of HDAC3 was responsible for USP38 mediated regulation of cancer stem cell-related transcripts. Our data provided functional insights of USP38 and HDAC3 in colorectal cancer and revealed novel mechanisms of ubiquitination mediated epigenetic regulation.
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Affiliation(s)
- Wei Zhan
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, 550004, Guiyang, Guizhou, China
| | - Xin Liao
- Department of Imaging, Affiliated Hospital of Guizhou Medical University, 550004, Guiyang, Guizhou, China
- Department of Pathophysiology in Basic Medical College, Guizhou Medical University, 550004, Guiyang, Guizhou, China
| | - Jing Liu
- Department of Imaging, Affiliated Hospital of Guizhou Medical University, 550004, Guiyang, Guizhou, China
| | - Tian Tian
- Department of Pathophysiology in Basic Medical College, Guizhou Medical University, 550004, Guiyang, Guizhou, China
| | - Lei Yu
- Department of Pathology, Guiyang Maternal and Child Health Hospital, 550002, Guiyang, Guizhou, China
| | - Rui Li
- Department of Traditional Chinese Medicine, Guizhou Provincial People's Hospital, 550002, Guiyang, Guizhou, China.
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29
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Siskova A, Cervena K, Kral J, Hucl T, Vodicka P, Vymetalkova V. Colorectal Adenomas-Genetics and Searching for New Molecular Screening Biomarkers. Int J Mol Sci 2020; 21:ijms21093260. [PMID: 32380676 PMCID: PMC7247353 DOI: 10.3390/ijms21093260] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a malignant disease with an incidence of over 1.8 million new cases per year worldwide. CRC outcome is closely related to the respective stage of CRC and is more favorable at less advanced stages. Detection of early colorectal adenomas is the key to survival. In spite of implemented screening programs showing efficiency in the detection of early precancerous lesions and CRC in asymptomatic patients, a significant number of patients are still diagnosed in advanced stages. Research on CRC accomplished during the last decade has improved our understanding of the etiology and development of colorectal adenomas and revealed weaknesses in the general approach to their detection and elimination. Recent studies seek to find a reliable non-invasive biomarker detectable even in the blood. New candidate biomarkers could be selected on the basis of so-called liquid biopsy, such as long non-coding RNA, microRNA, circulating cell-free DNA, circulating tumor cells, and inflammatory factors released from the adenoma into circulation. In this work, we focused on both genetic and epigenetic changes associated with the development of colorectal adenomas into colorectal carcinoma and we also discuss new possible biomarkers that are detectable even in adenomas prior to cancer development.
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Affiliation(s)
- Anna Siskova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Correspondence: (A.S.); (P.V.); Tel.: +420-241062251 (A.S.); +420-241062694 (P.V.)
| | - Klara Cervena
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
| | - Jan Kral
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute for Clinical and Experimental Medicine, Videnska 1958/9, 14021 Prague, Czech Republic;
| | - Tomas Hucl
- Institute for Clinical and Experimental Medicine, Videnska 1958/9, 14021 Prague, Czech Republic;
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 32300 Pilsen, Czech Republic
- Correspondence: (A.S.); (P.V.); Tel.: +420-241062251 (A.S.); +420-241062694 (P.V.)
| | - Veronika Vymetalkova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Videnska 1083, 14200 Prague, Czech Republic; (K.C.); (J.K.); (V.V.)
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Albertov 4, 12800 Prague, Czech Republic
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 76, 32300 Pilsen, Czech Republic
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30
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Kuang Y, Wang Y, Zhai W, Wang X, Zhang B, Xu M, Guo S, Ke M, Jia B, Liu H. Genome-Wide Analysis of Methylation-Driven Genes and Identification of an Eight-Gene Panel for Prognosis Prediction in Breast Cancer. Front Genet 2020; 11:301. [PMID: 32373154 PMCID: PMC7186397 DOI: 10.3389/fgene.2020.00301] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/13/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Aberrant DNA methylation is a crucial epigenetic regulator that is closely related to the occurrence and development of various cancers, including breast cancer (BC). The present study aimed to identify a novel methylation-based prognosis biomarker panel by integrally analyzing gene expression and methylation patterns in BC patients. METHODS DNA methylation and gene expression data of breast cancer (BRCA) were downloaded from The Cancer Genome Atlas (TCGA). R packages, including ChAMP, SVA, and MethylMix, were applied to identify the unique methylation-driven genes. Subsequently, these genes were subjected to Metascape for GO analysis. Univariant Cox regression was used to identify survival-related genes among the methylation-driven genes. Robust likelihood-based survival modeling was applied to define the prognosis markers. An independent data set (GSE72308) was used for further validation of our risk score system. RESULTS A total of 879 DNA methylation-driven genes were identified from 765 BC patients. In the discovery cohort, we identified 50 survival-related methylation-driven genes. Finally, we built an eight-methylation-driven gene panel that serves as prognostic predictors. CONCLUSIONS Our analysis of transcriptome and methylome variations associated with the survival status of BC patients provides a further understanding of basic biological processes and a basis for the genetic etiology in BC.
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Affiliation(s)
- Yanshen Kuang
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ying Wang
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, China
| | - Wanli Zhai
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, China
| | - Xuning Wang
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Bingdong Zhang
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Maolin Xu
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Shaohua Guo
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Mu Ke
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Baoqing Jia
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Hongyi Liu
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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31
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Wang C, Yin W, Chen P. MicroRNA-374a-5p promotes metastasis of colorectal cancer by targeting GRB7. Panminerva Med 2020; 63:555-557. [PMID: 31985182 DOI: 10.23736/s0031-0808.19.03789-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Caiyan Wang
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China -
| | - Wen Yin
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Peng Chen
- Yuying Arts Middle School, Muping, Yantai, China
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32
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Guo J, Yang Z, Zhou H, Yue J, Mu T, Zhang Q, Bi X. Upregulation of DKK3 by miR‐483‐3p plays an important role in the chemoprevention of colorectal cancer mediated by black raspberry anthocyanins. Mol Carcinog 2019; 59:168-178. [DOI: 10.1002/mc.23138] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Jun Guo
- College of Life ScienceLiaoning UniversityShenyang China
| | - Zhe Yang
- College of Life ScienceLiaoning UniversityShenyang China
| | - Hongrui Zhou
- College of Life ScienceLiaoning UniversityShenyang China
| | - Jiaxin Yue
- College of Life ScienceLiaoning UniversityShenyang China
| | - Teng Mu
- College of Life ScienceLiaoning UniversityShenyang China
| | - Qiuhua Zhang
- Department of PharmacologyLiaoning University of Traditional Chinese MedicineShenyang China
| | - Xiuli Bi
- College of Life ScienceLiaoning UniversityShenyang China
- Research Center for Computer Simulating and Information Processing of Bio‐macromolecules of Liaoning ProvinceLiaoning UniversityShenyang China
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33
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Du W, Liu N, Zhang Y, Liu X, Yang Y, Chen W, He Y. PLOD2 promotes aerobic glycolysis and cell progression in colorectal cancer by upregulating HK2. Biochem Cell Biol 2019; 98:386-395. [PMID: 31742425 DOI: 10.1139/bcb-2019-0256] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to characterize the expression of procollagen-lysine, 2-oxoglutarate 5-dioxygenase 2 (PLOD2), a membrane-bound homodimeric enzyme that specifically hydroxylates lysine in the telopeptide of procollagens, and assess the clinical significance of PLOD2 in colorectal cancer (CRC). Our results show that PLOD2 is highly expressed in CRC tumor tissues and cell lines, both at the mRNA and protein levels. Next, we found that PLOD2 was positively correlated with tumor grade (P = 0.001), T stage (P = 0.001), N stage (P < 0.001), and an advanced TNM stage (P < 0.001). Knockdown of PLOD2 attenuated CRC cell proliferation, migration, and invasiveness, in vitro. Our analysis of the mechanism behind the effects of PLOD2 suggests that PLOD2 affected glycolysis by regulating the expression of hexokinase 2 (HK2). HK2 reverses the inhibitory effects of PLOD2 knockdown in CRC. Furthermore, the data suggest that PLOD2 regulates the expression of HK2 via the STAT3 signaling pathway. Survival analysis revealed that high expression levels of PLOD2 (HR = 3.800, P < 0.001) and HK2 expression (HR = 10.222, P < 0.001) correlated with the overall survival rate. After analyzing their expression and correlation, PLOD2 positively correlated with HK2 (r = 0.590, P < 0.001). Our findings have revealed that PLOD2 is a novel regulatory factor in glucose metabolism, exerted via controlling HK2 expression in CRC cells, suggesting PLOD2 as a promising therapeutic target for CRC treatment.
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Affiliation(s)
- Wenwu Du
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Ning Liu
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Yafeng Zhang
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Xi Liu
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Yuanhong Yang
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Wei Chen
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
| | - Yi He
- Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China.,Department of Anus and Intestine Surgery, Suining Central Hospital, 127 West Desheng Road, Suining 629000, Sichuan, P.R. China
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