Extracellular signal-regulated kinase 5 (ERK5) mediates prolactin-stimulated adult neurogenesis in the subventricular zone and olfactory bulb.
J Biol Chem
; 288(4): 2623-31, 2013 Jan 25.
Article
in En
| MEDLINE
| ID: mdl-23223235
ABSTRACT
Prolactin-stimulated adult neurogenesis in the subventricular zone (SVZ) and olfactory bulb (OB) mediates several reproductive behaviors including mating/pregnancy, dominant male pheromone preference in females, and paternal recognition of offspring. However, downstream signaling mechanisms underlying prolactin-induced adult neurogenesis are completely unknown. We report here for the first time that prolactin activates extracellular signal-regulated kinase 5 (ERK5), a MAP kinase that is specifically expressed in the neurogenic regions of the adult mouse brain. Knockdown of ERK5 by retroviral infection of shRNA attenuates prolactin-stimulated neurogenesis in SVZ-derived adult neural stem/progenitor cells (aNPCs). Inducible erk5 deletion in adult neural stem cells of transgenic mice inhibits neurogenesis in the SVZ and OB following prolactin infusion or mating/pregnancy. These results identify ERK5 as a novel and critical signaling mechanism underlying prolactin-induced adult neurogenesis.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Olfactory Bulb
/
Prolactin
/
Brain
/
Mitogen-Activated Protein Kinase 7
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
J Biol Chem
Year:
2013
Document type:
Article
Affiliation country:
United States