Molecular variability of FLT3/ITD mutants and their impact on the differentiation program of 32D cells: Implications for the biological properties of AML blasts

Autor: Tomas Kozak, Sabrina Rueggeberg, Robert Ivanek, Vladimir Koza, Petr Cetkovsky, Sona Pekova, Jiri Schwarz, Xinping Li, Thomas Franz, Jiri Vrba, Stefan Leicht, Michal Dvorak, Miroslav Prucha, Michal Karas
Rok vydání: 2009
Předmět:
Zdroj: Leukemia Research. 33:1409-1416
ISSN: 0145-2126
Popis: FLT3 is the most frequently mutated gene in acute myeloid leukemia (AML), with internal tandem duplications (ITDs) accounting for up to 30% of its mutations. To analyze the impact of individual ITDs on the expression profile of immature myeloid cells, we have established 32D cell lines expressing nine different FLT3/ITDs isolated from AML patients and subjected them to whole genome expression profiling and 2DE/LC/MS proteomics. Our data indicate that in comparison to the controls, FLT3/ITD-positive 32D cells exhibit less mature expression profiles resembling early hematopoietic progenitors. Moreover, our results suggest that there exist biological differences among individual ITD variants.
Databáze: OpenAIRE