Researchers describe the surprising and crucial involvement of a pro-inflammatory signaling protein in the creation of hematopoietic stem cells during embryonic development, a finding that could help scientists to finally reproduce HSCs for therapeutic use. In this multiple confocal analysis of transverse sections from transgenic zebrafish embryos, vasculature is labeled by red fluorescence, NF-kB protein complex that regulates inflammation by green fluorescence and nuclei by blue fluorescence.
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