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Tet2 negatively regulates memory fidelity

ABSTRACT: Tet2 negatively regulates memory fidelity

PROVIDER: PRJNA590200 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10486793_1.fastq.gz	Fastqsanger.gz
	SRR10486793_2.fastq.gz	Fastqsanger.gz
	SRR10486794_1.fastq.gz	Fastqsanger.gz
	SRR10486794_2.fastq.gz	Fastqsanger.gz
	SRR10486795_1.fastq.gz	Fastqsanger.gz

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Tet2 negatively regulates memory fidelity

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TET2 Negatively Regulates Nestin Expression in Human Melanoma.

Project description:Although melanoma is an aggressive cancer, the understanding of the virulence-conferring pathways involved remains incomplete. We have demonstrated that loss of ten-eleven translocation methylcytosine dioxygenase (TET2)-mediated 5-hydroxymethylcytosine (5-hmC) is an epigenetic driver of melanoma growth and a biomarker of clinical virulence. We also have determined that the intermediate filament protein nestin correlates with tumorigenic and invasive melanoma growth. Here we examine the relationships between these two biomarkers. Immunohistochemistry staining of nestin and 5-hmC in 53 clinically annotated primary and metastatic patient melanomas revealed a significant negative correlation. Restoration of 5-hmC, as assessed in a human melanoma cell line by introducing full-length TET2 and TET2-mutated constructs, decreased nestin gene and protein expression in vitro. Genome-wide mapping using hydroxymethylated DNA immunoprecipitation sequencing disclosed significantly less 5-hmC binding in the 3' untranslated region of the nestin gene in melanoma compared to nevi, and 5-hmC binding in this region was significantly increased after TET2 overexpression in human melanoma cells in vitro. Our findings provide evidence suggesting that nestin regulation is negatively controlled epigenetically by TET2 via 5-hmC binding at the 3' untranslated region of the nestin gene, providing one potential pathway for understanding melanoma growth characteristics. Studies are now indicated to further define the interplay between 5-hmC, nestin expression, and melanoma virulence.

| S-EPMC4901139 | biostudies-literature

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