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Best Pract Res Clin Haematol. 2011 Dec;24(4):489-503. doi: 10.1016/j.beha.2011.09.004. Epub 2011 Nov 6.

Genomic profiling of B-progenitor acute lymphoblastic leukemia.

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Department of Pathology, St Jude Children's Research Hospital, Memphis, TN 38105, USA.


Childhood acute lymphoblastic leukemia (ALL) is comprised of multiple subtypes defined by recurring chromosomal alterations that are important events in leukemogenesis and are widely used in diagnosis and risk stratification, yet fail to fully explain the biology of this disease. In the last 5 years, genome-wide profiling of gene expression, structural DNA alterations and sequence variations has yielded important insights into the nature of submicroscopic genetic alterations that define novel subgroups of acute lymphoblastic leukemia and cooperate with known cytogenetic alterations in leukemogenesis. Importantly, several of these alterations are important determinants of risk of relapse and are potential targets for therapeutic intervention. Here, these advances and future directions in the genomic analysis of ALL are discussed.

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