Bonzheim, I. ; Irmler, M. ; Klier-Richter, M. ; Steinhilber, J.* ; Anastasov, N. ; Schafer, S.* ; Adam, P.* ; Beckers, J. ; Raffeld, M.* ; Fend, F.* ; Quintanilla-Martinez, L.
Identification of C/EBPβ target genes in ALK+ Anaplastic Large Cell Lymphoma (ALCL) by gene expression profiling and chromatin immunoprecipitation.
PLoS ONE 8:e64544 (2013)
C/EBPβ (CCAAT enhancer binding protein) is a transcription factor that plays a crucial role in survival and transformation of ALK+ anaplastic large cell lymphoma (ALCL). The aim of this study was to identify the downstream targets of C/EBPβ responsible for ALK-mediated oncogenesis. C/EBPβ was knocked down in ALK+ ALCL cell lines with a C/EBPβ-shRNA, followed by gene expression profiling (GEP). GEP analysis revealed a reproducible signature of genes that were significantly regulated by C/EBPβ. Classification into biological categories revealed overrepresentation of genes involved in the immune response, apoptosis and cell proliferation. Transcriptional regulation by C/EBPβ was found in 6 of 11 (BCL2A1, G0S2, TRIB1, S100A9, DDX21 and DDIT4) genes investigated by chromatin immunoprecipitation. We demonstrated that BCL2A1, G0S2 and DDX21 play a crucial role in survival and proliferation of ALK+ ALCL cells. DDX21, a gene involved in rRNA biogenesis, was found differentially overexpressed in primary ALK+ ALCL cases. All three candidate genes were validated in primary ALCL cases by either immunohistochemistry or RT-qPCR. In conclusion, we identified and validated several key C/EBPβ-regulated genes with major impact on survival and cell growth in ALK+ ALCL, supporting the central role of C/EBPβ in ALK-mediated oncogenesis.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Nf-kappa-b ; Binding-protein-beta ; Rna Helicase-ii/gu ; Signaling Pathway ; Cyclin D1 ; Ii Gu ; Transcription ; Kinase ; Survival ; Domains
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2013
Prepublished im Jahr
HGF-Berichtsjahr
2013
ISSN (print) / ISBN
1932-6203
e-ISSN
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 8,
Heft: 5,
Seiten: ,
Artikelnummer: e64544
Supplement: ,
Reihe
Verlag
Public Library of Science (PLoS)
Verlagsort
Lawrence, Kan.
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
30201 - Metabolic Health
30202 - Environmental Health
Forschungsfeld(er)
Enabling and Novel Technologies
Genetics and Epidemiology
Radiation Sciences
PSP-Element(e)
G-500300-001
G-500600-004
G-500200-001
Förderungen
Copyright
Erfassungsdatum
2013-06-24