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Induction of reversible hemolytic anemia in living zebrafish using a novel small molecule.

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Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, 621 Charles E. Young Drive, South Life Sciences Building, LS4325, Los Angeles, CA 90095, USA.


We used zebrafish to screen and identify small molecules that affect the process of vertebrate hematopoietic development. Zebrafish embryos were exposed to a library of 5000 synthetic compounds and screened for defects in primitive erythropoiesis. Here, we present the characterization of hemolytic anemia induced in zebrafish by the small molecule 5115318 (3-[5-methyl-furan 2-yl]-propionic acid N'-phenyl-hydrazide). This compound is capable of generating hemoglobin aggregates and Heinz bodies in red cells in vivo only. The induced anemia is reversible and treated fish recover in about 4 days. This study shows the feasibility of using zebrafish to screen for small molecules that can modulate the specific process of erythropoiesis.

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