, Volume 42, Issue 6, pp 2149-2163
Date: 12 Jun 2011

Identification of c-myc-dependent proteins in the medulloblastoma cell line D425Med

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High c-myc levels are linked to poor prognosis in medulloblastoma (MB), and it was the aim of the current study to search for c-myc-dependent proteins in the MB cell line D425Med. For this purpose D425Med cells and cells with knocked-down c-myc (by siRNA) were analysed by a gel-based differential proteomics study using mass spectrometry. Heterogeneous nuclear ribonucleoproteins C1/C2, heterogeneous nuclear ribonucleoprotein A/B, stathmin, endoplasmic reticulum protein ERp29 precursor and guanidinoacetate N-methyltransferase were c-myc dependently expressed. Signalling, the protein machinery, metabolism and endoplasmic reticulum function may be affected and these results enable studying tumour tissue for these proteins as potential dignity markers or pharmacological targets.