Glycogen: a Trojan horse for neurons

被引:29
作者
Magistretti, Pierre J.
Allaman, Igor
机构
[1] Ecole Polytech Fed Lausanne, Brain Mind Inst, Lab Neuroenerget & Cellular Dynam, CH-1015 Lausanne, Switzerland
[2] Univ Vaudois, Ctr Hosp, Ctr Neurosci Psychiat, Dept Psychiat, Lausanne, Switzerland
关键词
D O I
10.1038/nn1107-1341
中图分类号
Q189 [神经科学];
学科分类号
071006 [神经生物学];
摘要
Neural activity leads to the mobilization of energy from glycogen in astrocytes. A new paper reports that neurons have an ambivalent relationship with glycogen: they can synthesize it themselves, but that synthesis induces apoptosis. Presumably for this reason, neurons normally inhibit glycogen synthesis through two redundant pathways.
引用
收藏
页码:1341 / 1342
页数:2
相关论文
共 15 条
[1]
Allaman I, 2000, GLIA, V30, P382, DOI 10.1002/(SICI)1098-1136(200006)30:4<382::AID-GLIA70>3.0.CO
[2]
2-0
[3]
Energy transfer from astrocytes to axons:: the role of CNS glycogen [J].
Brown, AM ;
Tekkök, SB ;
Ransom, BR .
NEUROCHEMISTRY INTERNATIONAL, 2004, 45 (04) :529-536
[4]
GLYCOGEN IN ASTROCYTES - POSSIBLE FUNCTION AS LACTATE SUPPLY FOR NEIGHBORING CELLS [J].
DRINGEN, R ;
GEBHARDT, R ;
HAMPRECHT, B .
BRAIN RESEARCH, 1993, 623 (02) :208-214
[5]
Laforin, the dual-phosphatase responsible for Lafora disease, interacts with R5 (PTG), a regulatory subunit of protein phosphatase-1 that enhances glycogen accumulation [J].
Fernández-Sánchez, ME ;
Criado-García, O ;
Heath, KE ;
García-Fojeda, B ;
Medraño-Fernández, I ;
Gomez-Garre, P ;
Sanz, P ;
Serratosa, JM ;
de Córdoba, SR .
HUMAN MOLECULAR GENETICS, 2003, 12 (23) :3161-3171
[6]
Recent advances in the molecular basis of Lafora's progressive myoclonus epilepsy [J].
Ganesh, S ;
Puri, R ;
Singh, S ;
Mittal, S ;
Dubey, D .
JOURNAL OF HUMAN GENETICS, 2006, 51 (01) :1-8
[7]
Insights into Lafora disease: Malin is an E3 ubiquitin ligase that ubiquitinates and promotes the degradation of laforin [J].
Gentry, MS ;
Worby, CA ;
Dixon, JE .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (24) :8501-8506
[8]
LOCALIZATION OF GLYCOGEN-SYNTHASE IN BRAIN [J].
INOUE, N ;
MATSUKADO, Y ;
GOTO, S ;
MIYAMOTO, E .
JOURNAL OF NEUROCHEMISTRY, 1988, 50 (02) :400-405
[9]
Neuron-glia metabolic coupling and plasticity [J].
Magistretti, Pierre J. .
JOURNAL OF EXPERIMENTAL BIOLOGY, 2006, 209 (12) :2304-2311
[10]
MAGISTRETTI PJ, 2003, FUNDAMENTAL NEUROSCI