Aryl hydrocarbon receptor antagonists promote the expansion of human hematopoietic stem cells.
Aryl hydrocarbon receptor antagonists promote the expansion of human hematopoietic stem cells.
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DOI:
10.1126/science.1191536
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发表时间:
2010-09-10
期刊:
影响因子:
--
通讯作者:
Cooke MP
中科院分区:
文献类型:
--
作者:
Boitano AE;Wang J;Romeo R;Bouchez LC;Parker AE;Sutton SE;Walker JR;Flaveny CA;Perdew GH;Denison MS;Schultz PG;Cooke MP
Although practiced clinically for over 40 years, the use of hematopoietic stem cell (HSC) transplants remains limited by the ability to expand these cells ex vivo. An unbiased screen with primary human HSC identified a purine derivative, StemRegenin 1 (SR1), that promotes the ex vivo expansion of CD34+ cells. Culture of HSC with SR1 led to a fifty-fold increase in cells expressing CD34, and a 17-fold increase in cells that retain the ability to engraft immunodeficient mice. Mechanistic studies show that SR1 acts by antagonizing the aryl hydrocarbon receptor (AhR). The identification of SR1 and AhR modulation as a means to induce ex vivo HSC expansion should facilitate the clinical use of HSC therapy.
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