Aryl Hydrocarbon Receptor Antagonists Promote the Expansion of Human Hematopoietic Stem Cells

Author:

Boitano Anthony E.12,Wang Jian1,Romeo Russell2,Bouchez Laure C.1,Parker Albert E.2,Sutton Sue E.2,Walker John R.2,Flaveny Colin A.3,Perdew Gary H.3,Denison Michael S.4,Schultz Peter G.1,Cooke Michael P.2

Affiliation:

1. Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.

2. Genomics Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, CA 92121, USA.

3. The Pennsylvania State University, University Park, PA 16803, USA.

4. University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.

Abstract

Stem Cell Expansion The ability to expand hematopoietic stem cells (HSCs) during ex-vivo culture has been an important goal for over 20 years. Using a high-throughput chemical screen, Boitano et al. (p. 1345 , published online 5 August; see the Perspective by Sauvageau and Humphries ) found that a purine derivative, StemRegenin1 (SR1), promoted the expansion of human HSCs. Treatment of HSCs with SR1 (which blocked the activity of the aryl hydrocarbon receptor) led to the expansion of CD34 + cells and a 12 to 17-fold increase in the number of HSCs that engraft immune deficient mice.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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