RT Journal Article T1 The Endocannabinoid System Promotes Astroglial Differentiation by Acting on Neural Progenitor Cells A1 Aguado Sánchez, Tania A1 Palazuelos Diego, Javier A1 Monory, Krisztina A1 Stella, Nephi A1 Cravatt, Benjamin A1 Lutz, Beat A1 Marsicano, Giovanni A1 Kokaia, Zaal A1 Guzmán Pastor, Manuel A1 Galve Roperh, Ismael AB Endocannabinoids exert an important neuromodulatory role via presynaptic cannabinoid CB1 receptors and may also participate in the control of neural cell death and survival. The function of the endocannabinoid system has been extensively studied in differentiated neurons, but its potential role in neural progenitor cells remains to be elucidated. Here we show that the CB1 receptor and the endocannabinoid-inactivating enzyme fatty acid amide hydrolase are expressed, both in vitro and in vivo, in postnatal radial glia (RC2+ cells) and in adult nestin type I (nestin(+)GFAP+) neural progenitor cells. Cell culture experiments show that CB1 receptor activation increases progenitor proliferation and differentiation into astroglial cells in vitro. In vivo analysis evidences that, in postnatal CB1(-/-) mouse brain, progenitor proliferation and astrogliogenesis are impaired. Likewise, in adult CB1-deficient mice, neural progenitor proliferation is decreased but is increased in fatty acid amide hydrolase-deficient mice. In addition, endocannabinoid signaling controls neural progenitor differentiation in the adult brain by promoting astroglial differentiation of newly born cells. These results show a novel physiological role of endocannabinoids, which constitute a new family of signaling cues involved in the regulation of neural progenitor cell function. PB Society for Neuroscience SN 0270-6474 YR 2006 FD 2006 LK https://hdl.handle.net/20.500.14352/91163 UL https://hdl.handle.net/20.500.14352/91163 LA eng NO Aguado, Tania, et al. «The Endocannabinoid System Promotes Astroglial Differentiation by Acting on Neural Progenitor Cells». The Journal of Neuroscience, vol. 26, n.o 5, febrero de 2006, pp. 1551-61. https://doi.org/10.1523/JNEUROSCI.3101-05.2006. NO Ministerio de Educación y Ciencia (España) NO Comunidad de Madrid NO Fundación Científica de la Asociación Española Contra el Cáncer NO German Research Foundation NO National Institutes of Health NO European Commission NO Swedish Research Council NO Swedish Foundation for Strategic Research DS Docta Complutense RD 5 abr 2025