Jessberger, S.* ; Aigner, S.* ; Clemenson, G.* ; Toni, N.* ; Lie, D.C.* ; Karalay, O.* ; Overall, R.* ; Kempermann, G.* ; Gage, F.*
Cdk5 regulates accurate maturation of newborn granule cells in the adult hippocampus.
PLoS Biol. 6, 2465-2475:e272 (2008)
Newborn granule cells become functionally integrated into the synaptic circuitry of the adult dentate gyrus after a morphological and electrophysiological maturation process. The molecular mechanisms by which immature neurons and the neurites extending from them find their appropriate position and target area remain largely unknown. Here we show that single-cell-specific knockdown of cyclin-dependent kinase 5 (cdk5) activity in newborn cells using a retrovirus-based strategy leads to aberrant growth of dendritic processes, which is associated with an altered migration pattern of newborn cells. Even though spine formation and maturation are reduced in cdk5-deficient cells, aberrant dendrites form ectopic synapses onto hilar neurons. These observations identify cdk5 to be critically involved in the maturation and dendrite extension of newborn neurons in the course of adult neurogenesis. The data presented here also suggest a mechanistic dissociation between accurate dendritic targeting and subsequent synapse formation.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
NEWLY GENERATED NEURONS; ENHANCED SYNAPTIC PLASTICITY; SEIZURE-INDUCED NEUROGENESIS; CYCLIN-DEPENDENT KINASE-5; NEURAL STEM-CELLS; FUNCTIONAL-INTEGRATION; CEREBRAL-CORTEX; SLICE CULTURES; DENTATE GYRUS; BRAIN
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2008
Prepublished im Jahr
HGF-Berichtsjahr
0
ISSN (print) / ISBN
1544-9173
e-ISSN
1545-7885
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 6,
Heft: 11,
Seiten: 2465-2475,
Artikelnummer: e272
Supplement: ,
Reihe
Verlag
Public Library of Science (PLoS)
Verlagsort
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
Forschungsfeld(er)
PSP-Element(e)
G-551100-001
Förderungen
Copyright
Erfassungsdatum
2008-12-16