Homeodomain transcription factor Meis1 is a critical regulator of adult bone marrow hematopoiesis.
Homeodomain transcription factor Meis1 is a critical regulator of adult bone marrow hematopoiesis.
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DOI:
10.1371/journal.pone.0087646
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Goitsuka R
中科院分区:
文献类型:
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作者:
Ariki R;Morikawa S;Mabuchi Y;Suzuki S;Nakatake M;Yoshioka K;Hidano S;Nakauchi H;Matsuzaki Y;Nakamura T;Goitsuka R
Hematopoietic stem cells in the bone marrow have the capacity to both self-renew and to generate all cells of the hematopoietic system. The balance of these two activities is controlled by hematopoietic stem cell-intrinsic regulatory mechanisms as well as extrinsic signals from the microenvironment. Here we demonstrate that Meis1, a TALE family homeodomain transcription factor involved in numerous embryonic developmental processes, is selectively expressed in hematopoietic stem/progenitor cells. Conditional Meis1 knockout in adult hematopoietic cells resulted in a significant reduction in the hematopoietic stem/progenitor cells. Suppression of hematopoiesis by Meis1 deletion appears to be caused by impaired self-renewal activity and reduced cellular quiescence of hematopoietic stem/progenitor cells in a cell autonomous manner, resulting in stem cell exhaustion and defective long-term hematopoiesis. Meis1 deficiency down-regulated a subset of Pbx1-dependent hematopoietic stem cell signature genes, suggesting a functional link between them in the maintenance of hematopoietic stem/progenitor cells. These results show the importance of Meis1 in adult hematopoiesis.
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DOI:
10.1073/pnas.0503630102
发表时间:
2005-10-11
影响因子:
11.1
作者:
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通讯作者:
Hess, JL
影响因子:
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作者:
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通讯作者:
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影响因子:
64.8
作者:
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通讯作者:
Kimble, Judith
影响因子:
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作者:
通讯作者:
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