Schrader, A., Crispatzu, G., Oberbeck, S., Mayer, P., Putzer, S., von Jan, J., Vasyutina, E., Warner, K., Weit, N., Pflug, N., Braun, T., Andersson, E. I., Yadav, B., Riabinska, A., Maurer, B., Ferreira, M. S. Ventura, Beier, F., Altmueller, J., Lanasa, M., Herling, C. D., Haferlach, T., Stilgenbauer, S., Hopfinger, G., Peifer, M., Bruemmendorf, T. H., Nuernberg, P., Elenitoba-Johnson, K. S. J., Zha, S., Hallek, M., Moriggl, R., Reinhardt, H. C., Stern, M. -H., Mustjoki, S., Newrzela, S., Frommolt, P. and Herling, M. (2018). Actionable perturbations of damage responses by TCL1/ATM and epigenetic lesions form the basis of T-PLL. Nat. Commun., 9. LONDON: NATURE PUBLISHING GROUP. ISSN 2041-1723

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Abstract

T-cell prolymphocytic leukemia (T-PLL) is a rare and poor-prognostic mature T-cell malignancy. Here we integrated large-scale profiling data of alterations in gene expression, allelic copy number (CN), and nucleotide sequences in 111 well-characterized patients. Besides prominent signatures of T-cell activation and prevalent clonal variants, we also identify novel hot-spots for CN variability, fusion molecules, alternative transcripts, and progression-associated dynamics. The overall lesional spectrum of T-PLL is mainly annotated to axes of DNA damage responses, T-cell receptor/cytokine signaling, and histone modulation. We formulate a multi-dimensional model of T-PLL pathogenesis centered around a unique combination of TCL1 overexpression with damaging ATM aberrations as initiating core lesions. The effects imposed by TCL1 cooperate with compromised ATM toward a leukemogenic phenotype of impaired DNA damage processing. Dysfunctional ATM appears inefficient in alleviating elevated redox burdens and telomere attrition and in evoking a p53-dependent apoptotic response to genotoxic insults. As non-genotoxic strategies, synergistic combinations of p53 reactivators and deacetylase inhibitors reinstate such cell death execution.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Schrader, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Crispatzu, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Oberbeck, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mayer, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Putzer, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
von Jan, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vasyutina, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Warner, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weit, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pflug, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Braun, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Andersson, E. I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yadav, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Riabinska, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maurer, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ferreira, M. S. VenturaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beier, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Altmueller, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lanasa, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herling, C. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Haferlach, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stilgenbauer, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hopfinger, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Peifer, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruemmendorf, T. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nuernberg, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Elenitoba-Johnson, K. S. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zha, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hallek, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moriggl, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reinhardt, H. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stern, M. -H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mustjoki, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Newrzela, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Frommolt, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herling, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-195983
DOI: 10.1038/s41467-017-02688-6
Journal or Publication Title: Nat. Commun.
Volume: 9
Date: 2018
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 2041-1723
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CELL PROLYMPHOCYTIC LEUKEMIA; ATAXIA-TELANGIECTASIA; DNA-DAMAGE; GENOMIC INSTABILITY; EMBRYONIC LETHALITY; TELOMERASE ACTIVITY; ATM PROTEIN; GENE; EXPRESSION; MUTATIONSMultiple languages
Multidisciplinary SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/19598

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