Computational analyses on genetic alterations in the NSD genes family and the implications for colorectal cancer development

Ecancermedicalscience
Vívian D'AfonsecaAriel D Arencibia

Abstract

Colorectal cancer (CRC) is a prevalent tumour throughout the world. CRC symptoms appear only in advanced stages causing decrease in survival of patients. Therefore, it is necessary to establish new strategies to detect CRC through subclinical screening. Genetic alterations and differential expression of genes that codify histone methyltransferases (HMTs) are linked to tumourigenesis of CRC. One important group of genes that codify HMTs are the NSD family composed of NSD1, NSD2 and NSD3 genes. This family participates in several cancer processes as oncogenes, harbouring several genetic alterations and presenting differential expression in tumour cells. To investigate the implications of NSD genes in CRC cancer, we described the genomic landscape of all NSD family members in a cohort of CRC patients from publicly available cancer datasets. We identified associations among recurrent copy number alterations (CNAs), mutations and differential gene expression concerning clinical outcome. We found in CRC repositories that NSD1 harbours a missense mutation in SET domain-the catalytic region-that probably could decrease its activity. In addition, we found an association between the low expressions of NSD1 and NSD2 and decrease of surviv...Continue Reading

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script corr
GraphPad Prism®
R
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CBioPortal

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