DNA methylation of shelf, shore and open sea CpG positions distinguish high microsatellite instability from low or stable microsatellite status colon cancer stem cells

To investigate the genome-wide methylation of genetically characterized colorectal cancer stem cell (CR-CSC) lines. Eight CR-CSC lines were isolated from primary colorectal cancer (CRC) tissues, cultured and characterized for aneuploidy, mutational status of CRC-related genes and microsatellite inst...

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Veröffentlicht in:Epigenomics 2019-05, Vol.11 (6), p.587-604
Hauptverfasser: Visone, Rosa, Bacalini, Maria Giulia, Di Franco, Simone, Ferracin, Manuela, Colorito, Maria Luisa, Pagotto, Sara, Laprovitera, Noemi, Licastro, Danilo, Di Marco, Mirco, Scavo, Emanuela, Bassi, Cristian, Saccenti, Elena, Nicotra, Annalisa, Grzes, Maria, Garagnani, Paolo, De Laurenzi, Vincenzo, Valeri, Nicola, Mariani-Costantini, Renato, Negrini, Massimo, Stassi, Giorgio, Veronese, Angelo
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container_issue 6
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container_title Epigenomics
container_volume 11
creator Visone, Rosa
Bacalini, Maria Giulia
Di Franco, Simone
Ferracin, Manuela
Colorito, Maria Luisa
Pagotto, Sara
Laprovitera, Noemi
Licastro, Danilo
Di Marco, Mirco
Scavo, Emanuela
Bassi, Cristian
Saccenti, Elena
Nicotra, Annalisa
Grzes, Maria
Garagnani, Paolo
De Laurenzi, Vincenzo
Valeri, Nicola
Mariani-Costantini, Renato
Negrini, Massimo
Stassi, Giorgio
Veronese, Angelo
description To investigate the genome-wide methylation of genetically characterized colorectal cancer stem cell (CR-CSC) lines. Eight CR-CSC lines were isolated from primary colorectal cancer (CRC) tissues, cultured and characterized for aneuploidy, mutational status of CRC-related genes and microsatellite instability (MSI). Genome-wide DNA methylation was assessed by MethylationEPIC microarray. We describe a distinctive methylation pattern that is maintained following passages in immune-compromised mice. We identified an epigenetic CR-CSC signature associated with MSI. We noticed that the preponderance of the differentially methylated positions do not reside at CpG islands, but spread to shelf and open sea regions. Given that CRCs with MSI-high status have a lower metastatic potential, the identification of a MSI-related methylation signature could provide new insights and possible targets into metastatic CRC.
doi_str_mv 10.2217/epi-2018-0153
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Eight CR-CSC lines were isolated from primary colorectal cancer (CRC) tissues, cultured and characterized for aneuploidy, mutational status of CRC-related genes and microsatellite instability (MSI). Genome-wide DNA methylation was assessed by MethylationEPIC microarray. We describe a distinctive methylation pattern that is maintained following passages in immune-compromised mice. We identified an epigenetic CR-CSC signature associated with MSI. We noticed that the preponderance of the differentially methylated positions do not reside at CpG islands, but spread to shelf and open sea regions. Given that CRCs with MSI-high status have a lower metastatic potential, the identification of a MSI-related methylation signature could provide new insights and possible targets into metastatic CRC.</description><identifier>ISSN: 1750-1911</identifier><identifier>EISSN: 1750-192X</identifier><identifier>DOI: 10.2217/epi-2018-0153</identifier><identifier>PMID: 31066579</identifier><language>eng</language><publisher>England: Future Medicine Ltd</publisher><subject>Aneuploidy ; Animals ; Cancer ; Colon ; Colon cancer ; colon cancer stem cells ; Colonic Neoplasms - genetics ; Colonic Neoplasms - pathology ; Colorectal cancer ; Colorectal carcinoma ; CpG islands ; CpG Islands - genetics ; Deoxyribonucleic acid ; DNA ; DNA Methylation ; DNA microarrays ; Drug Resistance, Neoplasm - genetics ; Epigenesis, Genetic ; Epigenetics ; Genes ; Genomes ; Heterografts ; Humans ; Kinases ; Metastases ; Mice ; Microsatellite Instability ; MSI ; MSS ; Neoplastic Stem Cells - pathology ; Stability ; Stability analysis ; Stem cell transplantation ; Stem cells ; Tumors</subject><ispartof>Epigenomics, 2019-05, Vol.11 (6), p.587-604</ispartof><rights>2019 Angelo Veronese</rights><rights>2019. 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subjects Aneuploidy
Animals
Cancer
Colon
Colon cancer
colon cancer stem cells
Colonic Neoplasms - genetics
Colonic Neoplasms - pathology
Colorectal cancer
Colorectal carcinoma
CpG islands
CpG Islands - genetics
Deoxyribonucleic acid
DNA
DNA Methylation
DNA microarrays
Drug Resistance, Neoplasm - genetics
Epigenesis, Genetic
Epigenetics
Genes
Genomes
Heterografts
Humans
Kinases
Metastases
Mice
Microsatellite Instability
MSI
MSS
Neoplastic Stem Cells - pathology
Stability
Stability analysis
Stem cell transplantation
Stem cells
Tumors
title DNA methylation of shelf, shore and open sea CpG positions distinguish high microsatellite instability from low or stable microsatellite status colon cancer stem cells
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