Helmholtz Gemeinschaft

Search
Browse
Statistics
Feeds

Derepression of an endogenous long terminal repeat activates the CSF1R proto-oncogene in human lymphoma

Official URL:https://doi.org/10.1038/nm.2129
PubMed:View item in PubMed
Creators Name:Lamprecht, B. and Walter, K. and Kreher, S. and Kumar, R. and Hummel, M. and Lenze, D. and Koechert, K. and Bouhlel, M.A. and Richter, J. and Soler, E. and Stadhouders, R. and Joehrens, K. and Wurster, K.D. and Callen, D.F. and Harte, M.F. and Giefing, M. and Barlow, R. and Stein, H. and Anagnostopoulos, I. and Janz, M. and Cockerill, P.N. and Siebert, R. and Doerken, B. and Bonifer, C. and Mathas, S.
Journal Title:Nature Medicine
Journal Abbreviation:Nat Med
Volume:16
Number:5
Page Range:571-579, 1p following 579
Date:May 2010
Keywords:Colony-Stimulating Factors, Gene Expression, Hodgkin Disease, Lymphoma, B-Cell Lymphoma, Macrophage Colony-Stimulating Factor, Phosphoproteins, Proto-Oncogenes, Repressor Proteins, Terminal Repeat Sequences, Tumor Suppressor Proteins
Abstract:Mammalian genomes contain many repetitive elements, including long terminal repeats (LTRs), which have long been suspected to have a role in tumorigenesis. Here we present evidence that aberrant LTR activation contributes to lineage-inappropriate gene expression in transformed human cells and that such gene expression is central for tumor cell survival. We show that B cell-derived Hodgkin's lymphoma cells depend on the activity of the non-B, myeloid-specific proto-oncogene colony-stimulating factor 1 receptor (CSF1R). In these cells, CSF1R transcription initiates at an aberrantly activated endogenous LTR of the MaLR family (THE1B). Derepression of the THE1 subfamily of MaLR LTRs is widespread in the genome of Hodgkin's lymphoma cells and is associated with impaired epigenetic control due to loss of expression of the corepressor CBFA2T3. Furthermore, we detect LTR-driven CSF1R transcripts in anaplastic large cell lymphoma, in which CSF1R is known to be expressed aberrantly. We conclude that LTR derepression is involved in the pathogenesis of human lymphomas, a finding that might have diagnostic, prognostic and therapeutic implications.
ISSN:1078-8956
Publisher:Nature Publishing Group (U.S.A.)
Item Type:Article

Repository Staff Only: item control page

Open Access
MDC Library