| Literature DB >> 24183235 |
Elizabeth A Rush1, Sheri L Pollock, Irina Abecassis, Robert L Redner.
Abstract
The t(5;17)(q35;q21) APL variant results in expression of a fusion protein linking the N-terminus of nucleophosmin (NPM) to the C-terminus of the retinoic acid receptor alpha (RAR). We have previously shown that NPM-RAR is capable of binding to DNA either as a homodimer or heterodimer with RXR. To determine the biological significance of NPM-RAR/RXR interaction, we developed two mutants of NPM-RAR that showed markedly diminished ability to bind RXR. U937 subclones expressing the NPM-RAR mutants showed significantly less inhibition of vitamin D3/TGFbeta-induced differentiation, compared with NPM-RAR. These results support the hypothesis that RXR interaction is necessary for NPM-RAR-mediated myeloid maturation arrest.Entities:
Keywords: Acute promyelocytic leukemia; Differentiation; NPM-RAR; RXR
Mesh:
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Year: 2013 PMID: 24183235 PMCID: PMC3876950 DOI: 10.1016/j.leukres.2013.09.024
Source DB: PubMed Journal: Leuk Res ISSN: 0145-2126 Impact factor: 3.156