TY - JOUR
T1 - Metabolic control of adult neural stem cell activity by Fasn-dependent lipogenesis
AU - Knobloch, Marlen
AU - Braun, Simon M.G.
AU - Zurkirchen, Luis
AU - Von Schoultz, Carolin
AU - Zamboni, Nicola
AU - Araúzo-Bravo, Marcos J.
AU - Kovacs, Werner J.
AU - Karalay, Özlem
AU - Suter, Ueli
AU - MacHado, Raquel A.C.
AU - Roccio, Marta
AU - Lutolf, Matthias P.
AU - Semenkovich, Clay F.
AU - Jessberger, Sebastian
N1 - Funding Information:
Acknowledgements We thank S. Aigner, D. C. Lie, F. H. Gage and members of the Jessberger group for conceptual input; S. Kobel, C. Fischer, K. Walter, P. Sidiropoulos, T. Buch, B. Becher, P. Pelczar, P. Lötscher, A. J. Eisch and D. C. Lagace for experimental help or reagents; and the Light Microscopy and Screening Center (LMSC) of the ETH Zurich and the BioImaging and Optics Platform (BIOP) of the EPFL for help with imaging. This study was supported by the NCCR Neural Plasticity and Repair, Swiss National Science Foundation, TH grant (ETH-01 08-1), Zurich Neuroscience Center (ZNZ), Novartis Foundation, Theodore Ott Foundation, and the EMBO Young Investigator program (to S.J.). M.K. was supported by the Janggen-Pöhn foundation.
PY - 2013/1/10
Y1 - 2013/1/10
N2 - Mechanisms controlling the proliferative activity of neural stem and progenitor cells (NSPCs) have a pivotal role to ensure life-long neurogenesis in the mammalian brain. How metabolic programs are coupled with NSPC activity remains unknown. Here we show that fatty acid synthase (Fasn), the key enzyme of de novo lipogenesis, is highly active in adult NSPCs and that conditional deletion of Fasn in mouse NSPCs impairs adult neurogenesis. The rate of de novo lipid synthesis and subsequent proliferation of NSPCs is regulated by Spot14, a gene previously implicated in lipid metabolism, that we found to be selectively expressed in low proliferating adult NSPCs. Spot14 reduces the availability of malonyl-CoA, which is an essential substrate for Fasn to fuel lipogenesis. Thus, we identify here a functional coupling between the regulation of lipid metabolism and adult NSPC proliferation.
AB - Mechanisms controlling the proliferative activity of neural stem and progenitor cells (NSPCs) have a pivotal role to ensure life-long neurogenesis in the mammalian brain. How metabolic programs are coupled with NSPC activity remains unknown. Here we show that fatty acid synthase (Fasn), the key enzyme of de novo lipogenesis, is highly active in adult NSPCs and that conditional deletion of Fasn in mouse NSPCs impairs adult neurogenesis. The rate of de novo lipid synthesis and subsequent proliferation of NSPCs is regulated by Spot14, a gene previously implicated in lipid metabolism, that we found to be selectively expressed in low proliferating adult NSPCs. Spot14 reduces the availability of malonyl-CoA, which is an essential substrate for Fasn to fuel lipogenesis. Thus, we identify here a functional coupling between the regulation of lipid metabolism and adult NSPC proliferation.
UR - http://www.scopus.com/inward/record.url?scp=84872169944&partnerID=8YFLogxK
U2 - 10.1038/nature11689
DO - 10.1038/nature11689
M3 - Article
C2 - 23201681
AN - SCOPUS:84872169944
SN - 0028-0836
VL - 493
SP - 226
EP - 230
JO - Nature
JF - Nature
IS - 7431
ER -