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Syndromic features and mild cognitive impairment in mice with genetic reduction on p300 activity: Differential contribution of p300 and CBP to Rubinstein-Taybi syndrome etiology

AuthorsViosca, José; López-Atalaya, José P.; Olivares, Román; Eckner, Richard; Barco, Ángel
Issue Date2010
PublisherAcademic Press
CitationNeurobiology of Disease 37(1): 186- 194 (2010)
AbstractRubinstein-Taybi syndrome (RSTS) is a complex autosomal-dominant disease characterized by mental and growth retardation and skeletal abnormalities. A majority of the individuals diagnosed with RSTS carry heterozygous mutation in the gene CREBBP, but a small percentage of cases are caused by mutations in EP300. To investigate the contribution of p300 to RSTS pathoetiology, we carried out a comprehensive and multidisciplinary characterization of p300+/- mice. These mice exhibited facial abnormalities and impaired growth, two traits associated to RSTS in humans. We also observed abnormal gait, reduced swimming speed, enhanced anxiety in the elevated plus maze, and mild cognitive impairment during the transfer task in the water maze. These analyses demonstrate that p300+/- mice exhibit phenotypes that are reminiscent of neurological traits observed in RSTS patients, but their comparison with previous studies on CBP deficient strains also indicates that, in agreement with the most recent findings in human patients, the activity of p300 in cognition is likely less relevant or more susceptible to compensation than the activity of CBP. © 2009 Elsevier Inc. All rights reserved.
Identifiersdoi: 10.1016/j.nbd.2009.10.001
issn: 0969-9961
e-issn: 1095-953X
Appears in Collections:(IN) Artículos
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