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Sox6 enhances erythroid differentiation in human erythroid progenitors.
Dipartimento di Biotecnologie e Bioscienze, Universita` di Milano-Bicocca, Milano, Italy.
San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), San Raffaele Scientific Institute, Milano, Italy.
Dipartimento di Biotecnologie e Bioscienze, Universita` di Milano-Bicocca, Milano, Italy.
John Radcliffe Hospital, Molecular Hematology Unit, Oxford, United Kingdom.
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2011 (English)In: Blood, ISSN 0006-4971, E-ISSN 1528-0020, Vol. 117, no 13, p. 3669-79Article in journal (Refereed) Published
Abstract [en]

Sox6 belongs to the Sry (sex-determining region Y)-related high-mobility-group-box family of transcription factors, which control cell-fate specification of many cell types. Here, we explored the role of Sox6 in human erythropoiesis by its overexpression both in the erythroleukemic K562 cell line and in primary erythroid cultures from human cord blood CD34+ cells. Sox6 induced significant erythroid differentiation in both models. K562 cells underwent hemoglobinization and, despite their leukemic origin, died within 9 days after transduction; primary erythroid cultures accelerated their kinetics of erythroid maturation and increased the number of cells that reached the final enucleation step. Searching for direct Sox6 targets, we found SOCS3 (suppressor of cytokine signaling-3), a known mediator of cytokine response. Sox6 was bound in vitro and in vivo to an evolutionarily conserved regulatory SOCS3 element, which induced transcriptional activation. SOCS3 overexpression in K562 cells and in primary erythroid cells recapitulated the growth inhibition induced by Sox6, which demonstrates that SOCS3 is a relevant Sox6 effector.

Place, publisher, year, edition, pages
2011. Vol. 117, no 13, p. 3669-79
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Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-145416DOI: 10.1182/blood-2010-04-282350PubMedID: 21263153OAI: oai:DiVA.org:liu-145416DiVA, id: diva2:1187019
Available from: 2018-03-02 Created: 2018-03-02 Last updated: 2018-03-09

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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