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Your search keyword '"Heyn H"' showing total 12 results
Start Over Author "Heyn H" Topic epigenesis, genetic
12 results on '"Heyn H"'

1. Copy number rather than epigenetic alterations are the major dictator of imprinted methylation in tumors.

Author

Martin-Trujillo A, Vidal E, Monteagudo-Sánchez A, Sanchez-Delgado M, Moran S, Hernandez Mora JR, Heyn H, Guitart M, Esteller M, and Monk D

Subjects
Alleles, Cell Line, Tumor, DNA Copy Number Variations genetics, DNA Methylation genetics, Gene Expression Profiling, Gene Expression Regulation, Neoplastic, Genetic Loci, Humans, Epigenesis, Genetic, Gene Dosage, Genomic Imprinting, Neoplasms genetics
Abstract

It has been postulated that imprinting aberrations are common in tumors. To understand the role of imprinting in cancer, we have characterized copy-number and methylation in over 280 cancer cell lines and confirm our observations in primary tumors. Imprinted differentially methylated regions (DMRs) regulate parent-of-origin monoallelic expression of neighboring transcripts in cis. Unlike single-copy CpG islands that may be prone to hypermethylation, imprinted DMRs can either loose or gain methylation during tumorigenesis. Here, we show that methylation profiles at imprinted DMRs often not represent genuine epigenetic changes but simply the accumulation of underlying copy-number aberrations (CNAs), which is independent of the genome methylation state inferred from cancer susceptible loci. Our results reveal that CNAs also influence allelic expression as loci with copy-number neutral loss-of-heterozygosity or amplifications may be expressed from the appropriate parental chromosomes, which is indicative of maintained imprinting, although not observed as a single expression foci by RNA FISH.Altered genomic imprinting is frequently reported in cancer. Here, the authors analyze copy number and methylation in cancer cell lines and primary tumors to show that imprinted methylation profiles represent the accumulation of copy number alteration, rather than epigenetic alterations.

Published
2017
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2. Epigenetic loss of the RNA decapping enzyme NUDT16 mediates C-MYC activation in T-cell acute lymphoblastic leukemia.

Author

Anadón C, van Tetering G, Ferreira HJ, Moutinho C, Martínez-Cardús A, Villanueva A, Soler M, Heyn H, Moran S, Castro de Moura M, Setien F, Vidal A, Genescà E, Ribera JM, Nomdedeu JF, Guil S, and Esteller M

Subjects
Cell Line, Humans, Endoribonucleases genetics, Epigenesis, Genetic, Genes, myc, Precursor T-Cell Lymphoblastic Leukemia-Lymphoma genetics, Pyrophosphatases genetics
Published
2017
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3. Epigenetic profiling to classify cancer of unknown primary: a multicentre, retrospective analysis.

Author

Moran S, Martínez-Cardús A, Sayols S, Musulén E, Balañá C, Estival-Gonzalez A, Moutinho C, Heyn H, Diaz-Lagares A, de Moura MC, Stella GM, Comoglio PM, Ruiz-Miró M, Matias-Guiu X, Pazo-Cid R, Antón A, Lopez-Lopez R, Soler G, Longo F, Guerra I, Fernandez S, Assenov Y, Plass C, Morales R, Carles J, Bowtell D, Mileshkin L, Sia D, Tothill R, Tabernero J, Llovet JM, and Esteller M

Subjects
ErbB Receptors genetics, Female, Humans, Male, Neoplasms, Unknown Primary classification, Neoplasms, Unknown Primary pathology, Oligonucleotide Array Sequence Analysis, Proto-Oncogene Proteins p21(ras) genetics, Retrospective Studies, DNA Methylation, Epigenesis, Genetic, Neoplasms, Unknown Primary genetics
Abstract

Background: Cancer of unknown primary ranks in the top ten cancer presentations and has an extremely poor prognosis. Identification of the primary tumour and development of a tailored site-specific therapy could improve the survival of these patients. We examined the feasability of using DNA methylation profiles to determine the occult original cancer in cases of cancer of unknown primary., Methods: We established a classifier of cancer type based on the microarray DNA methylation signatures (EPICUP) in a training set of 2790 tumour samples of known origin representing 38 tumour types and including 85 metastases. To validate the classifier, we used an independent set of 7691 known tumour samples from the same tumour types that included 534 metastases. We applied the developed diagnostic test to predict the tumour type of 216 well-characterised cases of cancer of unknown primary. We validated the accuracy of the predictions from the EPICUP assay using autopsy examination, follow-up for subsequent clinical detection of the primary sites months after the initial presentation, light microscopy, and comprehensive immunohistochemistry profiling., Findings: The tumour type classifier based on the DNA methylation profiles showed a 99·6% specificity (95% CI 99·5-99·7), 97·7% sensitivity (96·1-99·2), 88·6% positive predictive value (85·8-91·3), and 99·9% negative predictive value (99·9-100·0) in the validation set of 7691 tumours. DNA methylation profiling predicted a primary cancer of origin in 188 (87%) of 216 patients with cancer with unknown primary. Patients with EPICUP diagnoses who received a tumour type-specific therapy showed improved overall survival compared with that in patients who received empiric therapy (hazard ratio [HR] 3·24, p=0·0051 [95% CI 1·42-7·38]; log-rank p=0·0029)., Interpretation: We show that the development of a DNA methylation based assay can significantly improve diagnoses of cancer of unknown primary and guide more precise therapies associated with better outcomes. Epigenetic profiling could be a useful approach to unmask the original primary tumour site of cancer of unknown primary cases and a step towards the improvement of the clinical management of these patients., Funding: European Research Council (ERC), Cellex Foundation, the Institute of Health Carlos III (ISCIII), Cancer Australia, Victorian Cancer Agency, Samuel Waxman Cancer Research Foundation, the Health and Science Departments of the Generalitat de Catalunya, and Ferrer., (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Published
2016
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4. DNA methylation dynamics in human carotid plaques after cerebrovascular events.

Author

Zaina S, Gonçalves I, Carmona FJ, Gomez A, Heyn H, Mollet IG, Moran S, Varol N, and Esteller M

Subjects
Amaurosis Fugax diagnosis, Asymptomatic Diseases, Carotid Stenosis complications, Carotid Stenosis diagnosis, CpG Islands, Gene Expression Profiling methods, Gene Expression Regulation, Genetic Association Studies, Genetic Predisposition to Disease, Humans, Ischemic Attack, Transient diagnosis, Oligonucleotide Array Sequence Analysis, Phenotype, Promoter Regions, Genetic, Rupture, Spontaneous, Stroke diagnosis, Transcription, Genetic, Amaurosis Fugax genetics, Carotid Arteries pathology, Carotid Stenosis genetics, DNA Methylation, Epigenesis, Genetic, Ischemic Attack, Transient genetics, Plaque, Atherosclerotic, Stroke genetics
Abstract

Objective: To understand whether cerebrovascular events, a major complication of atherosclerosis, are associated with any specific DNA methylation changes in the carotid plaque., Approach and Results: We profiled the DNA methylomes of human symptomatic carotid plaques obtained from patients who had cerebrovascular events (n=19) and asymptomatic counterparts (n=19) with a high-density microarray (≈485 000 CpG sites, Illumina), and crossed DNA methylation data with RNAseq-based expression data from an independent symptomatic carotid plaque set (n=8). Few (30) CpGs showed a significant (P<0.05; absolute Delta-Beta, >0.20) differential methylation between the 2 groups. Within symptomatic carotid plaques, DNA methylation correlated significantly with postcerebrovascular event time (range, 3-45 days; r-value range, -0.926 to 0.857; P<0.05) for ≈45 000 CpGs, the vast majority of which became hypomethylated with increasing postcerebrovascular event time. Hypomethylation was not due to erasure of the gene-body and CG-poor region hypermethylation that accompany the progression of stable lesions, but rather targeted promoters and CpG islands. Noticeably, promoter hypomethylation and increased expression of genes involved in the inhibition of the inflammatory response, defense against oxidative stress, and active DNA demethylation were observed with increasing postcerebrovascular event time. Concomitantly, histological changes consistent with phagocyte-driven plaque healing were observed., Conclusions: Weak changes in the DNA methylome distinguish symptomatic from asymptomatic plaques, but a widespread demethylation resulting in permissive transcriptional marks at atheroprotective gene promoters is established in plaques after a cerebrovascular event, thus mirroring previous observations that ruptured plaques tend to revert to a stable structure. The identified loci are candidate targets to accelerate the pace of carotid plaque stabilization., (© 2015 American Heart Association, Inc.)

Published
2015
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5. Epigenetic activation of a cryptic TBC1D16 transcript enhances melanoma progression by targeting EGFR.

Author

Vizoso M, Ferreira HJ, Lopez-Serra P, Carmona FJ, Martínez-Cardús A, Girotti MR, Villanueva A, Guil S, Moutinho C, Liz J, Portela A, Heyn H, Moran S, Vidal A, Martinez-Iniesta M, Manzano JL, Fernandez-Figueras MT, Elez E, Muñoz-Couselo E, Botella-Estrada R, Berrocal A, Pontén F, Oord Jv, Gallagher WM, Frederick DT, Flaherty KT, McDermott U, Lorigan P, Marais R, and Esteller M

Subjects
Animals, Cell Line, Tumor, DNA Methylation drug effects, DNA Methylation genetics, GTPase-Activating Proteins metabolism, Immunoprecipitation, Mice, Nude, Molecular Weight, Neoplasm Metastasis, Prognosis, Promoter Regions, Genetic genetics, Protein Binding drug effects, Protein Isoforms genetics, Protein Isoforms metabolism, Protein Kinase Inhibitors pharmacology, RNA, Messenger genetics, RNA, Messenger metabolism, RNA, Small Interfering metabolism, Signal Transduction drug effects, Transcriptional Activation drug effects, Transcriptional Activation genetics, Treatment Outcome, rab GTP-Binding Proteins metabolism, Disease Progression, Epigenesis, Genetic drug effects, ErbB Receptors metabolism, GTPase-Activating Proteins genetics, Melanoma genetics, Melanoma pathology
Abstract

Metastasis is responsible for most cancer-related deaths, and, among common tumor types, melanoma is one with great potential to metastasize. Here we study the contribution of epigenetic changes to the dissemination process by analyzing the changes that occur at the DNA methylation level between primary cancer cells and metastases. We found a hypomethylation event that reactivates a cryptic transcript of the Rab GTPase activating protein TBC1D16 (TBC1D16-47 kDa; referred to hereafter as TBC1D16-47KD) to be a characteristic feature of the metastatic cascade. This short isoform of TBC1D16 exacerbates melanoma growth and metastasis both in vitro and in vivo. By combining immunoprecipitation and mass spectrometry, we identified RAB5C as a new TBC1D16 target and showed that it regulates EGFR in melanoma cells. We also found that epigenetic reactivation of TBC1D16-47KD is associated with poor clinical outcome in melanoma, while conferring greater sensitivity to BRAF and MEK inhibitors.

Published
2015
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6. An Adenine Code for DNA: A Second Life for N6-Methyladenine.

Author

Heyn H and Esteller M

Subjects
Adenine analysis, Adenine metabolism, Animals, Bacteria genetics, Gene Expression Regulation, Sequence Analysis, DNA, Adenine analogs & derivatives, DNA Methylation, Epigenesis, Genetic
Abstract

DNA N6-methyladenine (6mA) protects against restriction enzymes in bacteria. However, isolated reports have suggested additional activities and its presence in other organisms, such as unicellular eukaryotes. New data now find that 6mA may have a gene regulatory function in green alga, worm, and fly, suggesting m6A as a potential "epigenetic" mark., (Copyright © 2015 Elsevier Inc. All rights reserved.)

Published
2015
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7. Epigenetic loss of the PIWI/piRNA machinery in human testicular tumorigenesis.

Author

Ferreira HJ, Heyn H, Garcia del Muro X, Vidal A, Larriba S, Muñoz C, Villanueva A, and Esteller M

Subjects
Carcinogenesis genetics, Carcinogenesis pathology, Cell Line, Tumor, CpG Islands, Gene Expression, Humans, Long Interspersed Nucleotide Elements, Male, Methylation, RNA, Small Interfering genetics, Testicular Neoplasms genetics, Testicular Neoplasms pathology, Argonaute Proteins metabolism, Carcinogenesis metabolism, Epigenesis, Genetic, RNA, Small Interfering metabolism, Testicular Neoplasms metabolism
Abstract

Although most cancer research has focused in mRNA, non-coding RNAs are also an essential player in tumorigenesis. In addition to the well-recognized microRNAs, recent studies have also shown that epigenetic silencing by CpG island hypermethylation of other classes of non-coding RNAs, such as transcribed ultraconserved regions (T-UCRs) or small nucleolar RNAs (snoRNAs), also occur in human neoplasia. Herein we have studied the putative existence of epigenetic aberrations in the activity of PIWI proteins, an Argonaute family protein subclass, and the small regulatory PIWI-interacting RNAs (piRNAs) in testicular cancer, as the PIWI/piRNA pathway plays a critical role in male germline development. We have observed the existence of promoter CpG island hypermethylation-associated silencing of PIWIL1, PIWIL2, PIWIL4, and TDRD1 in primary seminoma and non-seminoma testicular tumors, in addition to testicular germ cell tumor cell lines. Most importantly, these epigenetic lesions occur in a context of piRNA downregulation and loss of DNA methylation of the LINE-1 repetitive sequences, one of the target genomic loci where the PIWI/piRNA machinery acts as a caretaker in non-transformed cells.

Published
2014
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8. Global epigenomic reconfiguration during mammalian brain development.

Author

Lister R, Mukamel EA, Nery JR, Urich M, Puddifoot CA, Johnson ND, Lucero J, Huang Y, Dwork AJ, Schultz MD, Yu M, Tonti-Filippini J, Heyn H, Hu S, Wu JC, Rao A, Esteller M, He C, Haghighi FG, Sejnowski TJ, Behrens MM, and Ecker JR

Subjects
5-Methylcytosine metabolism, Adult, Animals, Base Sequence, Conserved Sequence, Cytosine metabolism, Epigenomics, Genome-Wide Association Study, Humans, Longevity, Mice, Mice, Inbred C57BL, X Chromosome Inactivation genetics, Cytosine analogs & derivatives, DNA Methylation, Epigenesis, Genetic, Frontal Lobe growth & development, Gene Expression Regulation, Developmental
Abstract

DNA methylation is implicated in mammalian brain development and plasticity underlying learning and memory. We report the genome-wide composition, patterning, cell specificity, and dynamics of DNA methylation at single-base resolution in human and mouse frontal cortex throughout their lifespan. Widespread methylome reconfiguration occurs during fetal to young adult development, coincident with synaptogenesis. During this period, highly conserved non-CG methylation (mCH) accumulates in neurons, but not glia, to become the dominant form of methylation in the human neuronal genome. Moreover, we found an mCH signature that identifies genes escaping X-chromosome inactivation. Last, whole-genome single-base resolution 5-hydroxymethylcytosine (hmC) maps revealed that hmC marks fetal brain cell genomes at putative regulatory regions that are CG-demethylated and activated in the adult brain and that CG demethylation at these hmC-poised loci depends on Tet2 activity.

Published
2013
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9. Epigenetic profiling joins personalized cancer medicine.

Author

Heyn H, Méndez-González J, and Esteller M

Subjects
Biomarkers, Pharmacological, Biomarkers, Tumor genetics, Humans, Neoplasms pathology, Precision Medicine, DNA Methylation genetics, Epigenesis, Genetic genetics, Neoplasms drug therapy, Neoplasms genetics
Abstract

Personalized medicine is defined by therapy decisions tailored to individual patients, aiming to improve therapeutic efficiencies and to minimize side effects. The current clinical practice includes targeted therapies for disease-related alterations and molecular biomarker-based patient stratification. However, recent advances in screening technologies have enabled more comprehensive identification strategies and suggest a plethora of additional valuable biomarkers and druggable molecules for future clinical applications. Beside genetic alterations, in particular, DNA methylation biomarkers emerge into the field by presenting stable DNA modifications with predictive potential for drug treatment efficiencies, especially in a cancer context. Although not directly affecting the genetic code, DNA methylation exhibits regulatory functions with high impact on disease onset and progression. In this article, the authors summarize the current knowledge of DNA methylation biomarkers for treatment efficiencies and evaluate their translational value into clinical use.

Published
2013
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10. Dynamics of DNA methylation in recent human and great ape evolution.

Author

Hernando-Herraez I, Prado-Martinez J, Garg P, Fernandez-Callejo M, Heyn H, Hvilsom C, Navarro A, Esteller M, Sharp AJ, and Marques-Bonet T

Subjects
Animals, CpG Islands genetics, Gene Expression Regulation, Gorilla gorilla genetics, Hominidae genetics, Humans, Pan paniscus genetics, Pan troglodytes genetics, Pongo genetics, DNA Methylation genetics, Epigenesis, Genetic, Genomic Imprinting, Promoter Regions, Genetic
Abstract

DNA methylation is an epigenetic modification involved in regulatory processes such as cell differentiation during development, X-chromosome inactivation, genomic imprinting and susceptibility to complex disease. However, the dynamics of DNA methylation changes between humans and their closest relatives are still poorly understood. We performed a comparative analysis of CpG methylation patterns between 9 humans and 23 primate samples including all species of great apes (chimpanzee, bonobo, gorilla and orangutan) using Illumina Methylation450 bead arrays. Our analysis identified ∼800 genes with significantly altered methylation patterns among the great apes, including ∼170 genes with a methylation pattern unique to human. Some of these are known to be involved in developmental and neurological features, suggesting that epigenetic changes have been frequent during recent human and primate evolution. We identified a significant positive relationship between the rate of coding variation and alterations of methylation at the promoter level, indicative of co-occurrence between evolution of protein sequence and gene regulation. In contrast, and supporting the idea that many phenotypic differences between humans and great apes are not due to amino acid differences, our analysis also identified 184 genes that are perfectly conserved at protein level between human and chimpanzee, yet show significant epigenetic differences between these two species. We conclude that epigenetic alterations are an important force during primate evolution and have been under-explored in evolutionary comparative genomics., Competing Interests: The authors have declared that no competing interests exist.

Published
2013
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11. DNA methylation profiling in breast cancer discordant identical twins identifies DOK7 as novel epigenetic biomarker.

Author

Heyn H, Carmona FJ, Gomez A, Ferreira HJ, Bell JT, Sayols S, Ward K, Stefansson OA, Moran S, Sandoval J, Eyfjord JE, Spector TD, and Esteller M

Subjects
Female, Humans, Biomarkers metabolism, Breast Neoplasms genetics, DNA Methylation, Epigenesis, Genetic, Muscle Proteins genetics, Twin Studies as Topic
Abstract

Using whole blood from 15 twin pairs discordant for breast cancer and high-resolution (450K) DNA methylation analysis, we identified 403 differentially methylated CpG sites including known and novel potential breast cancer genes. Confirming the results in an independent validation cohort of 21 twin pairs determined the docking protein DOK7 as a candidate for blood-based cancer diagnosis. DNA hypermethylation of the promoter region was also seen in primary breast cancer tissues and cancer cell lines. Hypermethylation of DOK7 occurs years before tumor diagnosis, suggesting a role as a powerful epigenetic blood-based biomarker as well as providing insights into breast cancer pathogenesis.

Published
2013
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12. Machine Learning Identifies Stemness Features Associated with Oncogenic Dedifferentiation

Author

Tathiane M. Malta, Artem Sokolov, Andrew J. Gentles, Tomasz Burzykowski, Laila Poisson, John N. Weinstein, Bożena Kamińska, Joerg Huelsken, Larsson Omberg, Olivier Gevaert, Antonio Colaprico, Patrycja Czerwińska, Sylwia Mazurek, Lopa Mishra, Holger Heyn, Alex Krasnitz, Andrew K. Godwin, Alexander J. Lazar, Joshua M. Stuart, Katherine A. Hoadley, Peter W. Laird, Houtan Noushmehr, Maciej Wiznerowicz, Samantha J. Caesar-Johnson, John A. Demchok, Ina Felau, Melpomeni Kasapi, Martin L. Ferguson, Carolyn M. Hutter, Heidi J. Sofia, Roy Tarnuzzer, Zhining Wang, Liming Yang, Jean C. Zenklusen, Jiashan (Julia) Zhang, Sudha Chudamani, Jia Liu, Laxmi Lolla, Rashi Naresh, Todd Pihl, Qiang Sun, Yunhu Wan, Ye Wu, Juok Cho, Timothy DeFreitas, Scott Frazer, Nils Gehlenborg, Gad Getz, David I. Heiman, Jaegil Kim, Michael S. Lawrence, Pei Lin, Sam Meier, Michael S. Noble, Gordon Saksena, Doug Voet, Hailei Zhang, Brady Bernard, Nyasha Chambwe, Varsha Dhankani, Theo Knijnenburg, Roger Kramer, Kalle Leinonen, Yuexin Liu, Michael Miller, Sheila Reynolds, Ilya Shmulevich, Vesteinn Thorsson, Wei Zhang, Rehan Akbani, Bradley M. Broom, Apurva M. Hegde, Zhenlin Ju, Rupa S. Kanchi, Anil Korkut, Jun Li, Han Liang, Shiyun Ling, Wenbin Liu, Yiling Lu, Gordon B. Mills, Kwok-Shing Ng, Arvind Rao, Michael Ryan, Jing Wang, Jiexin Zhang, Adam Abeshouse, Joshua Armenia, Debyani Chakravarty, Walid K. Chatila, Ino de Bruijn, Jianjiong Gao, Benjamin E. Gross, Zachary J. Heins, Ritika Kundra, Konnor La, Marc Ladanyi, Augustin Luna, Moriah G. Nissan, Angelica Ochoa, Sarah M. Phillips, Ed Reznik, Francisco Sanchez-Vega, Chris Sander, Nikolaus Schultz, Robert Sheridan, S. Onur Sumer, Yichao Sun, Barry S. Taylor, Jioajiao Wang, Hongxin Zhang, Pavana Anur, Myron Peto, Paul Spellman, Christopher Benz, Christopher K. Wong, Christina Yau, D. Neil Hayes, Joel S. Parker, Matthew D. Wilkerson, Adrian Ally, Miruna Balasundaram, Reanne Bowlby, Denise Brooks, Rebecca Carlsen, Eric Chuah, Noreen Dhalla, Robert Holt, Steven J.M. Jones, Katayoon Kasaian, Darlene Lee, Yussanne Ma, Marco A. Marra, Michael Mayo, Richard A. Moore, Andrew J. Mungall, Karen Mungall, A. Gordon Robertson, Sara Sadeghi, Jacqueline E. Schein, Payal Sipahimalani, Angela Tam, Nina Thiessen, Kane Tse, Tina Wong, Ashton C. Berger, Rameen Beroukhim, Andrew D. Cherniack, Carrie Cibulskis, Stacey B. Gabriel, Galen F. Gao, Gavin Ha, Matthew Meyerson, Steven E. Schumacher, Juliann Shih, Melanie H. Kucherlapati, Raju S. Kucherlapati, Stephen Baylin, Leslie Cope, Ludmila Danilova, Moiz S. Bootwalla, Phillip H. Lai, Dennis T. Maglinte, David J. Van Den Berg, Daniel J. Weisenberger, J. Todd Auman, Saianand Balu, Tom Bodenheimer, Cheng Fan, Alan P. Hoyle, Stuart R. Jefferys, Corbin D. Jones, Shaowu Meng, Piotr A. Mieczkowski, Lisle E. Mose, Amy H. Perou, Charles M. Perou, Jeffrey Roach, Yan Shi, Janae V. Simons, Tara Skelly, Matthew G. Soloway, Donghui Tan, Umadevi Veluvolu, Huihui Fan, Toshinori Hinoue, Hui Shen, Wanding Zhou, Michelle Bellair, Kyle Chang, Kyle Covington, Chad J. Creighton, Huyen Dinh, HarshaVardhan Doddapaneni, Lawrence A. Donehower, Jennifer Drummond, Richard A. Gibbs, Robert Glenn, Walker Hale, Yi Han, Jianhong Hu, Viktoriya Korchina, Sandra Lee, Lora Lewis, Wei Li, Xiuping Liu, Margaret Morgan, Donna Morton, Donna Muzny, Jireh Santibanez, Margi Sheth, Eve Shinbrot, Linghua Wang, Min Wang, David A. Wheeler, Liu Xi, Fengmei Zhao, Julian Hess, Elizabeth L. Appelbaum, Matthew Bailey, Matthew G. Cordes, Li Ding, Catrina C. Fronick, Lucinda A. Fulton, Robert S. Fulton, Cyriac Kandoth, Elaine R. Mardis, Michael D. McLellan, Christopher A. Miller, Heather K. Schmidt, Richard K. Wilson, Daniel Crain, Erin Curley, Johanna Gardner, Kevin Lau, David Mallery, Scott Morris, Joseph Paulauskis, Robert Penny, Candace Shelton, Troy Shelton, Mark Sherman, Eric Thompson, Peggy Yena, Jay Bowen, Julie M. Gastier-Foster, Mark Gerken, Kristen M. Leraas, Tara M. Lichtenberg, Nilsa C. Ramirez, Lisa Wise, Erik Zmuda, Niall Corcoran, Tony Costello, Christopher Hovens, Andre L. Carvalho, Ana C. de Carvalho, José H. Fregnani, Adhemar Longatto-Filho, Rui M. Reis, Cristovam Scapulatempo-Neto, Henrique C.S. Silveira, Daniel O. Vidal, Andrew Burnette, Jennifer Eschbacher, Beth Hermes, Ardene Noss, Rosy Singh, Matthew L. Anderson, Patricia D. Castro, Michael Ittmann, David Huntsman, Bernard Kohl, Xuan Le, Richard Thorp, Chris Andry, Elizabeth R. Duffy, Vladimir Lyadov, Oxana Paklina, Galiya Setdikova, Alexey Shabunin, Mikhail Tavobilov, Christopher McPherson, Ronald Warnick, Ross Berkowitz, Daniel Cramer, Colleen Feltmate, Neil Horowitz, Adam Kibel, Michael Muto, Chandrajit P. Raut, Andrei Malykh, Jill S. Barnholtz-Sloan, Wendi Barrett, Karen Devine, Jordonna Fulop, Quinn T. Ostrom, Kristen Shimmel, Yingli Wolinsky, Andrew E. Sloan, Agostino De Rose, Felice Giuliante, Marc Goodman, Beth Y. Karlan, Curt H. Hagedorn, John Eckman, Jodi Harr, Jerome Myers, Kelinda Tucker, Leigh Anne Zach, Brenda Deyarmin, Hai Hu, Leonid Kvecher, Caroline Larson, Richard J. Mural, Stella Somiari, Ales Vicha, Tomas Zelinka, Joseph Bennett, Mary Iacocca, Brenda Rabeno, Patricia Swanson, Mathieu Latour, Louis Lacombe, Bernard Têtu, Alain Bergeron, Mary McGraw, Susan M. Staugaitis, John Chabot, Hanina Hibshoosh, Antonia Sepulveda, Tao Su, Timothy Wang, Olga Potapova, Olga Voronina, Laurence Desjardins, Odette Mariani, Sergio Roman-Roman, Xavier Sastre, Marc-Henri Stern, Feixiong Cheng, Sabina Signoretti, Andrew Berchuck, Darell Bigner, Eric Lipp, Jeffrey Marks, Shannon McCall, Roger McLendon, Angeles Secord, Alexis Sharp, Madhusmita Behera, Daniel J. Brat, Amy Chen, Keith Delman, Seth Force, Fadlo Khuri, Kelly Magliocca, Shishir Maithel, Jeffrey J. Olson, Taofeek Owonikoko, Alan Pickens, Suresh Ramalingam, Dong M. Shin, Gabriel Sica, Erwin G. Van Meir, Hongzheng Zhang, Wil Eijckenboom, Ad Gillis, Esther Korpershoek, Leendert Looijenga, Wolter Oosterhuis, Hans Stoop, Kim E. van Kessel, Ellen C. Zwarthoff, Chiara Calatozzolo, Lucia Cuppini, Stefania Cuzzubbo, Francesco DiMeco, Gaetano Finocchiaro, Luca Mattei, Alessandro Perin, Bianca Pollo, Chu Chen, John Houck, Pawadee Lohavanichbutr, Arndt Hartmann, Christine Stoehr, Robert Stoehr, Helge Taubert, Sven Wach, Bernd Wullich, Witold Kycler, Dawid Murawa, Ki Chung, W. Jeffrey Edenfield, Julie Martin, Eric Baudin, Glenn Bubley, Raphael Bueno, Assunta De Rienzo, William G. Richards, Steven Kalkanis, Tom Mikkelsen, Lisa Scarpace, Nicolas Girard, Marta Aymerich, Elias Campo, Eva Giné, Armando López Guillermo, Nguyen Van Bang, Phan Thi Hanh, Bui Duc Phu, Yufang Tang, Howard Colman, Kimberley Evason, Peter R. Dottino, John A. Martignetti, Hani Gabra, Hartmut Juhl, Teniola Akeredolu, Serghei Stepa, Dave Hoon, Keunsoo Ahn, Koo Jeong Kang, Felix Beuschlein, Anne Breggia, Michael Birrer, Debra Bell, Mitesh Borad, Alan H. Bryce, Erik Castle, Vishal Chandan, John Cheville, John A. Copland, Michael Farnell, Thomas Flotte, Nasra Giama, Thai Ho, Michael Kendrick, Jean-Pierre Kocher, Karla Kopp, Catherine Moser, David Nagorney, Daniel O’Brien, Brian Patrick O’Neill, Tushar Patel, Gloria Petersen, Florencia Que, Michael Rivera, Lewis Roberts, Robert Smallridge, Thomas Smyrk, Melissa Stanton, R. Houston Thompson, Michael Torbenson, Ju Dong Yang, Lizhi Zhang, Fadi Brimo, Jaffer A. Ajani, Ana Maria Angulo Gonzalez, Carmen Behrens, Jolanta Bondaruk, Russell Broaddus, Bogdan Czerniak, Bita Esmaeli, Junya Fujimoto, Jeffrey Gershenwald, Charles Guo, Christopher Logothetis, Funda Meric-Bernstam, Cesar Moran, Lois Ramondetta, David Rice, Anil Sood, Pheroze Tamboli, Timothy Thompson, Patricia Troncoso, Anne Tsao, Ignacio Wistuba, Candace Carter, Lauren Haydu, Peter Hersey, Valerie Jakrot, Hojabr Kakavand, Richard Kefford, Kenneth Lee, Georgina Long, Graham Mann, Michael Quinn, Robyn Saw, Richard Scolyer, Kerwin Shannon, Andrew Spillane, Jonathan Stretch, Maria Synott, John Thompson, James Wilmott, Hikmat Al-Ahmadie, Timothy A. Chan, Ronald Ghossein, Anuradha Gopalan, Douglas A. Levine, Victor Reuter, Samuel Singer, Bhuvanesh Singh, Nguyen Viet Tien, Thomas Broudy, Cyrus Mirsaidi, Praveen Nair, Paul Drwiega, Judy Miller, Jennifer Smith, Howard Zaren, Joong-Won Park, Nguyen Phi Hung, Electron Kebebew, W. Marston Linehan, Adam R. Metwalli, Karel Pacak, Peter A. Pinto, Mark Schiffman, Laura S. Schmidt, Cathy D. Vocke, Nicolas Wentzensen, Robert Worrell, Hannah Yang, Marc Moncrieff, Chandra Goparaju, Jonathan Melamed, Harvey Pass, Natalia Botnariuc, Irina Caraman, Mircea Cernat, Inga Chemencedji, Adrian Clipca, Serghei Doruc, Ghenadie Gorincioi, Sergiu Mura, Maria Pirtac, Irina Stancul, Diana Tcaciuc, Monique Albert, Iakovina Alexopoulou, Angel Arnaout, John Bartlett, Jay Engel, Sebastien Gilbert, Jeremy Parfitt, Harman Sekhon, George Thomas, Doris M. Rassl, Robert C. Rintoul, Carlo Bifulco, Raina Tamakawa, Walter Urba, Nicholas Hayward, Henri Timmers, Anna Antenucci, Francesco Facciolo, Gianluca Grazi, Mirella Marino, Roberta Merola, Ronald de Krijger, Anne-Paule Gimenez-Roqueplo, Alain Piché, Simone Chevalier, Ginette McKercher, Kivanc Birsoy, Gene Barnett, Cathy Brewer, Carol Farver, Theresa Naska, Nathan A. Pennell, Daniel Raymond, Cathy Schilero, Kathy Smolenski, Felicia Williams, Carl Morrison, Jeffrey A. Borgia, Michael J. 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Subjects
0301 basic medicine, Carcinogenesis, pan-cancer, Cancer Genome Atlas Research Network, medicine.disease_cause, Biochemistry, epigenomic, Epigenesis, Genetic, genomic, Machine Learning, GENE-EXPRESSION SIGNATURE, TUMOR, Neoplasms, Databases, Genetic, Tumor Microenvironment, LS4_6, Stemness, Neoplasm Metastasis, 610 Medicine & health, Induced pluripotent stem cell, 11 Medical and Health Sciences, Carcinogenesi, Epigenomics, Cancer stem cells, Stem Cells, PROLIFERATION, MicroRNA, Sciences bio-médicales et agricoles, CANCER, stemne, Neoplasm Metastasi, CONNECTIVITY MAP, ALGORITMOS, Stem cell, Life Sciences & Biomedicine, Human, Biochemistry & Molecular Biology, cancer stem cell, The Cancer Genome Atlas, Biology, Article, General Biochemistry, Genetics and Molecular Biology, NO, ANNEXIN 1, 03 medical and health sciences, Stem Cell, Cancer stem cell, medicine, Humans, Epigenetics, EMBRYONIC STEM, Tumor microenvironment, Science & Technology, Biochemistry, Genetics and Molecular Biology(all), dedifferentiation, Cell Biology, 06 Biological Sciences, Cell Dedifferentiation, DNA Methylation, Immune checkpoint, SELF-RENEWAL, MicroRNAs, 030104 developmental biology, CELLS, Cancer research, Neoplasm, OVEREXPRESSION, The Cancer Genome Atla, Transcriptome, cancer stem cells, machine learning, stemness, Genetics and Molecular Biology(all), Developmental Biology
Abstract

Cancer progression involves the gradual loss of a differentiated phenotype and acquisition of progenitor and stem-cell-like features. Here, we provide novel stemness indices for assessing the degree of oncogenic dedifferentiation. We used an innovative one-class logistic regression (OCLR) machine-learning algorithm to extract transcriptomic and epigenetic feature sets derived from non-transformed pluripotent stem cells and their differentiated progeny. Using OCLR, we were able to identify previously undiscovered biological mechanisms associated with the dedifferentiated oncogenic state. Analyses of the tumor microenvironment revealed unanticipated correlation of cancer stemness with immune checkpoint expression and infiltrating immune cells. We found that the dedifferentiated oncogenic phenotype was generally most prominent in metastatic tumors. Application of our stemness indices to single-cell data revealed patterns of intra-tumor molecular heterogeneity. Finally, the indices allowed for the identification of novel targets and possible targeted therapies aimed at tumor differentiation. Stemness features extracted from transcriptomic and epigenetic data from TCGA tumors reveal novel biological and clinical insight, as well as potential drug targets for anti-cancer therapies., 0, info:eu-repo/semantics/published

Published
2018

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