Cited by 12Protein Kinase Regulation and GTPase SignalingGenomics and Chromatin DynamicsBioinformatics and Genomic Networks

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

RAS oncogene-mediated deregulation of the transcriptome: From molecular signature to function

Schäfer, Reinhold, Sers, Christine·2011·Advances in Enzyme Regulation

Abstract

Transcriptome analysis of cancer cells has developed into a standard procedure to elucidate multiple features of the malignant process and to link gene expression to clinical properties. Gene expression profiling based on microarrays provides essentially correlative information and needs to be transferred to the functional level in order to understand the activity and contribution of individual genes or sets of genes as elements of the gene signature. To date, there exist significant gaps in the functional understanding of gene expression profiles. Moreover, the processes that drive the profound transcriptional alterations that characterize cancer cells remain mainly elusive. We have used pathway-restricted gene expression profiles derived from RAS oncogene-transformed cells and from RAS-expressing cancer cells to identify regulators downstream of the MAPK pathway.We describe the role of epigenetic regulation exemplified by the control of several immune genes in generic cell lines and colorectal cancer cells, particularly the functional interaction between signaling and DNA methylation. Moreover, we assess the role of the architectural transcription factor high mobility AT-hook 2 (HMGA2) as a regulator of the RAS-responsive transcriptome in ovarian epithelial cells. Finally, we describe an integrated approach combining pathway interference in colorectal cancer cells, gene expression profiling and computational analysis of regulatory elements of deregulated target genes. This strategy resulted in the identification of Y-box binding protein 1 (YBX1) as a regulator of MAPK-dependent proliferation and gene expression. The implications for a therapeutic application of HMGA2 gene silencing and the role of YBX1 as a prognostic factor are discussed.

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Crossref · 10.1016/j.advenzreg.2010.11.005

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Metadata

Authors
Schäfer, R., & Sers, C.
Affiliations
Charité – Universitätsmedizin Berlin (DE)
Corresponding author
Schäfer, Reinhold
Venue
Advances in Enzyme Regulation
Publisher
Elsevier BV
Published
2011
Volume
51
Issue
1
Pages
126-136
ISSN
0065-2571 (ISSN-L)
OpenAlex
W2039691472
Cited by
12
References
26
Citations by year
2026: 1 · 2023: 1 · 2021: 1 · 2019: 1 · 2018: 1 · 2016: 1 · 2014: 1 · 2013: 1 · 2012: 3
FWCI
0.65
Type
journal article
Language
en
Open access
closed
Locations
  • Advances in Enzyme Regulation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Deutsche Krebshilfe
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
oncogenic Ras, transcriptome deregulation, MAPK signaling, gene expression signatures, epigenetic regulation, DNA methylation, immune-related genes, HMGA2, YB-1, colorectal cancer, ovarian epithelial cells, transcriptional regulation, gene silencing, prognostic factors, cell proliferation
MeSH terms
Animals, Humans, Genes, ras, Transcription Factors, Signal Transduction, ras Proteins, Gene Expression Profiling, Mitogen-Activated Protein Kinases, Microarray Analysis, Epigenomics

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