Publication: Induction of adult levels of β-globin in human erythroid cells that intrinsically express embryonic or fetal globin by transduction with KLF1 and BCL11A-XL
Issued Date
2014-11-01
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ISSN
15928721
03906078
03906078
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2-s2.0-84908409973
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Mahidol University
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SCOPUS
Bibliographic Citation
Haematologica. Vol.99, No.11 (2014), 1677-1685
Suggested Citation
Kongtana Trakarnsanga, Marieangela C. Wilson, Winnie Lau, Belinda K. Singleton, Steve F. Parsons, Punthita Sakuntanaga, Ryo Kurita, Yukio Nakamura, David J. Anstee, Jan Frayne Induction of adult levels of β-globin in human erythroid cells that intrinsically express embryonic or fetal globin by transduction with KLF1 and BCL11A-XL. Haematologica. Vol.99, No.11 (2014), 1677-1685. doi:10.3324/haematol.2014.110155 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/34171
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Title
Induction of adult levels of β-globin in human erythroid cells that intrinsically express embryonic or fetal globin by transduction with KLF1 and BCL11A-XL
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Abstract
© 2014 Ferrata Storti Foundation. A major barrier to the clinical use of erythrocytes generated in vitro from pluripotent stem cells or cord blood progenitors is failure of these erythrocytes to express adult hemoglobin. The key regulators of globin switching KLF1 and BCL11A are absent or at a lower level than in adult cells in K562 and erythroid cells differentiated in vitro from induced pluripotent stem cells and cord blood progenitors. Transfection or transduction of K562 and cord blood erythroid cells with either KLF1 or BCL11A-XL had little effect on β-globin expression. In contrast, transduction with both transcription factors stimulated β-globin expression. Similarly, increasing the level of BCL11A-XL in the induced pluripotent stem cell-derived erythroid cell line HiDEP-1, which has levels of endogenous KLF1 similar to adult cells but lacks BCL11A, resulted in levels of β-globin equivalent to that of adult erythroid cells. Interestingly, this increase in β-globin was coincident with a decrease in ε- and ζ-, but not γ-globin, implicating BCL11A in repression of embryonic globin expression. The data show that KLF1 and BCL11A-XL together are required, but sufficient to induce adult levels of β-globin in induced pluripotent stem cell and cord blood-derived erythroid cells that intrinsically express embryonic or fetal globin.