Braig, M., Paellmann, N., Preukschas, M., Steinemann, D., Hofmann, W., Gompf, A., Streichert, T., Braunschweig, T., Copland, M., Rudolph, K. L., Bokemeyer, C., Koschmieder, S., Schuppert, A., Balabanov, S. and Bruemmendorf, T. H. (2014). A 'telomere-associated secretory phenotype' cooperates with BCR-ABL to drive malignant proliferation of leukemic cells. Leukemia, 28 (10). S. 2028 - 2040. LONDON: NATURE PUBLISHING GROUP. ISSN 1476-5551

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Abstract

Telomere biology is frequently associated with disease evolution in human cancer and dysfunctional telomeres have been demonstrated to contribute to genetic instability. In BCR-ABL(+) chronic myeloid leukemia (CML), accelerated telomere shortening has been shown to correlate with leukemia progression, risk score and response to treatment. Here, we demonstrate that proliferation of murine CML-like bone marrow cells strongly depends on telomere maintenance. CML-like cells of telomerase knockout mice with critically short telomeres (CML-iG4) are growth retarded and proliferation is terminally stalled by a robust senescent cell cycle arrest. In sharp contrast, CML-like cells with pre-shortened, but not critically short telomere lengths (CML-G2) grew most rapidly and were found to express a specific 'telomere-associated secretory phenotype', comprising secretion of chemokines, interleukins and other growth factors, thereby potentiating oncogene-driven growth. Moreover, conditioned supernatant of CML-G2 cells markedly enhanced proliferation of CML-WT and pre-senescent CML-iG4 cells. Strikingly, a similar inflammatory mRNA expression pattern was found with disease progression from chronic phase to accelerated phase in CML patients. These findings demonstrate that telomere-induced senescence needs to be bypassed by leukemic cells in order to progress to blast crisis and provide a novel mechanism by which telomere shortening may contribute to disease evolution in CML.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Braig, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paellmann, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Preukschas, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Steinemann, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hofmann, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gompf, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Streichert, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Braunschweig, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Copland, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rudolph, K. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bokemeyer, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Koschmieder, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schuppert, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Balabanov, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruemmendorf, T. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-426668
DOI: 10.1038/leu.2014.95
Journal or Publication Title: Leukemia
Volume: 28
Number: 10
Page Range: S. 2028 - 2040
Date: 2014
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 1476-5551
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CHRONIC MYELOID-LEUKEMIA; HEMATOPOIETIC STEM-CELLS; ONCOGENE-INDUCED SENESCENCE; GENE-EXPRESSION; MATRIX METALLOPROTEINASES; LENGTH DYNAMICS; CHRONIC PHASE; DNA-DAMAGE; DISEASE; P53Multiple languages
Oncology; HematologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/42666

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