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Leuk Res. 2013 Jun;37(6):631-6. doi: 10.1016/j.leukres.2013.02.008. Epub 2013 Mar 7.

Lipoprotein lipase in chronic lymphocytic leukaemia - strong biomarker with lack of functional significance.

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Department of Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, Austria.


In chronic lymphocytic leukaemia (CLL), lipoprotein lipase (LPL) mRNA overexpression is an established poor prognostic marker, its function, however, is poorly understood. Measuring extracellular LPL enzymatic activity and protein, we found no difference between levels in CLL patients and those of controls, both before and after heparin treatment in vivo and in vitro. Investigating LPL knock down effects, we determined five potential downstream targets, of which one gene, STXBP3, reportedly is involved in fatty acid metabolism. While possibly reflecting an epigenetic switch towards an incorrect transcriptional program, LPL overexpression by itself does not appear to significantly influence CLL cell survival.

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