Different cell types produce signals that regulate the activity of blood-forming stem cells. A study shows that certain rare mesenchymal cells surrounding blood vessels are the main source of one such signal in mice. See Article p.457
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L.I.Z. is a founder and shareholder of Fate Therapeutics and a scientific adviser for Stemgent, two biotechnology companies developing therapies based on stem-cell research.
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Shestopalov, I., Zon, L. The right neighbour. Nature 481, 453–454 (2012). https://doi.org/10.1038/481453a
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DOI: https://doi.org/10.1038/481453a
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