Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Kollmann, K; Heller, G; Schneckenleithner, C; Warsch, W; Scheicher, R; Ott, RG; Schäfer, M; Fajmann, S; Schlederer, M; Schiefer, AI; Reichart, U; Mayerhofer, M; Hoeller, C; Zöchbauer-Müller, S; Kerjaschki, D; Bock, C; Kenner, L; Hoefler, G; Freissmuth, M; Green, AR; Moriggl, R; Busslinger, M; Malumbres, M; Sexl, V.
A kinase-independent function of CDK6 links the cell cycle to tumor angiogenesis.
Cancer Cell. 2013; 24(2):167-181
Doi: 10.1016/j.ccr.2013.07.012
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- Co-Autor*innen der Med Uni Graz
- Höfler Gerald
- Kenner Lukas
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- Abstract:
- In contrast to its close homolog CDK4, the cell cycle kinase CDK6 is expressed at high levels in lymphoid malignancies. In a model for p185BCR-ABL+ B-acute lymphoid leukemia, we show that CDK6 is part of a transcription complex that induces the expression of the tumor suppressor p16INK4a and the pro-angiogenic factor VEGF-A. This function is independent of CDK6's kinase activity. High CDK6 expression thus suppresses proliferation by upregulating p16INK4a, providing an internal safeguard. However, in the absence of p16INK4a, CDK6 can exert its full tumor-promoting function by enhancing proliferation and stimulating angiogenesis. The finding that CDK6 connects cell-cycle progression to angiogenesis confirms CDK6's central role in hematopoietic malignancies and could underlie the selection pressure to upregulate CDK6 and silence p16INK4a.
- Find related publications in this database (using NLM MeSH Indexing)
- Animals -
- Cell Cycle - physiology
- Cyclin-Dependent Kinase 6 - genetics
- Humans -
- Leukemia, B-Cell - enzymology
- Lymphoma, B-Cell - enzymology
- Mice -
- Mice, Inbred C57BL -
- Mice, Nude -
- Mice, Transgenic -
- Neoplasms - blood supply
- Neovascularization, Pathologic - enzymology