The compound StemRegenin 1 (SR1) is a selective, cell permeable, small molecule that promotes the self-renewal of human hematopoietic stem cells in culture. SR1 is an antagonist of the aryl hydrocarbon receptor.

SR1 is the first small molecule that promotes robust expansion/self-renewal of human CD34+ peripheral blood and cord blood hematopoietic stem cells (HSCs). Culture of HSCs with SR1 led to a 50-fold increase in cells expressing CD34 and a 17-fold increase in cells that retain the ability to engraft immunodeficient mice. SR1 can be potentially used for ex vivo expansion of normal HSCs or leukemic stem/progenitor cells.

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Shipping Condition: The product is shipped in a glass vial at ambient temperature.Storage: For longer shelf life, store solid powder at 4^oC desiccated, or store DMSO solution at -20^oC.

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