Knockout mice reveal a role for protein tyrosine phosphatase H1 in cognition.
BACKGROUND
The present study has investigated the protein tyrosine phosphatase H1 (PTPH1) expression pattern in mouse brain and its impact on CNS functions.


METHODS
We have previously described a PTPH1-KO mouse, generated by replacing the PTP catalytic and the PDZ domain with a LacZ neomycin cassette. PTPH1 expression pattern was evaluated by LacZ staining in the brain and PTPH1-KO and WT mice (n = 10 per gender per genotype) were also behaviorally tested for CNS functions.


RESULTS
In CNS, PTPH1 is expressed during development and in adulthood and mainly localized in hippocampus, thalamus, cortex and cerebellum neurons. The behavioral tests performed on the PTPH1-KO mice showed an impact on working memory in male mice and an impaired learning performance at rotarod in females.


CONCLUSIONS
These results demonstrate for the first time a neuronal expression of PTPH1 and its functionality at the level of cognition.
Patrignani
Claudia
C
MerckSerono Ivrea, Colleretto G, (TO) 10010, Italy. claudia.patrignani@merckserono.net.
Magnone
Maria Chiara
MC
Tavano
Patrizia
P
Ardizzone
Michele
M
Muzio
Valeria
V
Gréco
Béatrice
B
Zaratin
Paola F
PF