Biochem Biophys Res Commun. 2010 Feb 12;392(3):271-6. Epub 2010 Jan 12.

An evidence for adhesion-mediated acquisition of acute myeloid leukemic stem cell-like immaturities.

Funayama K, Shimane M, Nomura H, Asano S.

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Department of Integrative Bioscience and Biomedical Engineering, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan.

Abstract

For long-term survival in vitro and in vivo of acute myeloid leukemia cells, their adhesion to bone marrow stromal cells is indispensable. However, it is still unknown if these events are uniquely induced by the leukemic stem cells. Here we show that TF-1 human leukemia cells, once they have formed a cobblestone area by adhering to mouse bone marrow-derived MS-5 cells, can acquire some leukemic stem cell like properties in association with a change in the CD44 isoform-expression pattern and with an increase in a set of related microRNAs. These findings strongly suggest that at least some leukemia cells can acquire leukemic stem cell like properties in an adhesion-mediated stochastic fashion.

PMID:: 20060807; [PubMed - indexed for MEDLINE]

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