A novel murine model of myeloproliferative disorders generated by overexpression of the transcription factor NF-E2

Abstract: The molecular pathophysiology of myeloproliferative neoplasms (MPNs) remains poorly understood. Based on the observation that the transcription factor NF-E2 is often overexpressed in MPN patients, independent of the presence of other molecular aberrations, we generated mice expressing an NF-E2 transgene in hematopoietic cells. These mice exhibit many features of MPNs, including thrombocytosis, leukocytosis, Epo-independent colony formation, characteristic bone marrow histology, expansion of stem and progenitor compartments, and spontaneous transformation to acute myeloid leukemia. The MPN phenotype is transplantable to secondary recipient mice. NF-E2 can alter histone modifications, and NF-E2 transgenic mice show hypoacetylation of histone H3. Treatment of mice with the histone deacetylase inhibitor (HDAC-I) vorinostat restored physiological levels of histone H3 acetylation, decreased NF-E2 expression, and normalized platelet numbers. Similarly,
MPN patients treated with an HDAC-I exhibited a decrease in NF-E2 expression. These data establish a role for NF-E2 in the pathophysiology of MPNs and provide a molecular rationale for investigating epigenetic alterations as novel targets for rationally
designed MPN therapies

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Journal of Experimental Medicine. Vol. 209, no. 1 (2012), 35-50, DOI 10.1084/jem.20110540, issn: 1540-9538
IN COPYRIGHT http://rightsstatements.org/page/InC/1.0 rs

Schlagwort
Kardiovaskuläre Krankheit

DOI
10.1084/jem.20110540
URN
urn:nbn:de:bsz:25-freidok-130234
Rechteinformation
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Letzte Aktualisierung
25.03.2025, 13:47 MEZ

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