Early Preclinical Changes in Hippocampal CREB-Binding Protein Expression in a Mouse Model of Familial Alzheimer’s Disease
Autor
Ettcheto M.
Abad S.
Petrov D.
Pedrós I.
Busquets O.
Sánchez-López E.
Casadesús G.
Beas-Zarate C.
Carro E.
Auladell C.
Olloquequi J.
Pallàs M.
Folch J.
Camins A.
Resumen
The molecular basis of memory loss in Alzheimer’s disease (AD), the main cause of senile dementia, is under investigation. In the present study, we have focused on the early hippocampal memory-related changes in APPswe/PS1dE9 (APP/PS1) mice, a well-established mouse model of familial AD. It is well known that molecules like cAMP response element binding (CREB) and binding protein (CBP) play a crucial role in memory consolidation. We analyzed CBP on its transcriptional activity and protein levels, finding a significant downregulation of both of them at 3-month-old mice. In addition, the downregulation of this molecule was associated with a decrease on acetylation levels of histone H3 in the hippocampus of APP/PS1 mice. Moreover, the p-CREB levels, which are important for memory acquisition at 3 months in APP/PS1 mice, were downregulated. Furthermore, we suggest that early neuroinflammation, especially due to the Tnfα gene increased expression, could also be responsible to this process of memory loss. Given all the previously mentioned results, we propose that an early suitable treatment to prevent the evolution of the disease should include a combination of drugs, including anti-inflammatories, which may decrease glial activation and Tnfα levels, and phosphodiesterase inhibitors that increase cAMP levels. © 2017, Springer Science+Business Media, LLC.
Colecciones
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Article
Dexibuprofen prevents neurodegeneration and cognitive decline in APPswe/PS1dE9 through multiple signaling pathways (2020)
Ettcheto M.; Sánchez-López E.; Pons L.; Busquets O.; Olloquequi J.; Beas-Zarate C.; Pallas M.; García M.L.; Auladell C.; Folch J.; ... (Elsevier B.V., 2017) -
Article
Epigallocatechin-3-Gallate (EGCG) Improves Cognitive Deficits Aggravated by an Obesogenic Diet Through Modulation of Unfolded Protein Response in APPswe/PS1dE9 Mice (2020)
Ettcheto M.; Cano A.; Manzine P.R.; Busquets O.; Verdaguer E.; Castro-Torres R.D.; García M.L.; Beas-Zarate C.; Olloquequi J.; Auladell C.; ... (Springer, 2020) -
Review
Molecular Mechanisms of ER Stress and UPR in the Pathogenesis of Alzheimer’s Disease (2020)
Uddin M.S.; Tewari D.; Sharma G.; Kabir M.T.; Barreto G.E.; Bin-Jumah M.N.; Perveen A.; Abdel-Daim M.M.; Ashraf G.M. (Springer, 2020)