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Published on: May 26, 2014
t(3;14)(p14;q32) results in aberrant expression of FOXP1 in a case of diffuse large B-cell lymphoma
James A L Fenton1, Ed Schuuring, Sharon L Barrans
1Department of Haematological Oncology, University of Leeds, United Kingdom. j.a.l.fenton@leeds.ac.uk
Abstract:
Strong expression of Forkhead box-P1 (FOXP1), a winged-helix transcription factor, has been identified as an independent prognostic factor in diffuse large B-cell lymphoma (DLBCL). However, possible mechanisms of deregulation of this gene, on 3p14.1, have yet to be elucidated. We have identified a breakpoint at the IGA1 gene in the immunoglobulin heavy chain (IGH) locus at 14q32 that was juxtaposed to the FOXP1 gene locus in a gastric DLBCL that showed strong expression of FOXP1. This may be one possible mechanism of deregulating FOXP1 expression by placing it under the control of IGH enhancers.
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