Abstract:
:During the past decade it was recognized that homeobox gene families such as the clustered Hox genes play pivotal roles both in normal and malignant hematopoiesis. More recently, similar roles have also become apparent for members of the ParaHox gene cluster, evolutionarily closely related to the Hox gene cluster. This is in particular found for the caudal-type homeobox genes (Cdx) genes, known to act as upstream regulators of Hox genes. The CDX gene family member CDX2 belongs to the most frequent aberrantly expressed proto-oncogenes in human acute leukemias and is highly leukemogenic in experimental models. Correlative studies indicate that CDX2 functions as master regulator of perturbed HOX gene expression in human acute myeloid leukemia, locating this ParaHox gene at a central position for initiating and maintaining HOX gene dysregulation as a driving leukemogenic force. There are still few data about potential upstream regulators initiating aberrant CDX2 expression in human leukemias or about critical downstream targets of CDX2 in leukemic cells. Characterizing this network will hopefully open the way to therapeutic approaches that target deregulated ParaHox genes in human leukemia.
journal_name
Bloodjournal_title
Bloodauthors
Rawat VP,Humphries RK,Buske Cdoi
10.1182/blood-2012-02-385898subject
Has Abstractpub_date
2012-07-19 00:00:00pages
519-27issue
3eissn
0006-4971issn
1528-0020pii
blood-2012-02-385898journal_volume
120pub_type
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