Astrocyte projections extend to the blood-brain barrier (BBB) and promote its maturation. These astrocytes are now shown to secrete a factor that appears to integrate signaling networks necessary for BBB development and maintenance (pages 900–906).
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Rieckmann, P., Engelhardt, B. Building up the blood-brain barrier. Nat Med 9, 828–829 (2003). https://doi.org/10.1038/nm0703-828
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DOI: https://doi.org/10.1038/nm0703-828
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