| First Author | Vanden Dries V | Year | 2017 |
| Journal | Neurobiol Aging | Volume | 55 |
| Pages | 202-212 | PubMed ID | 28464981 |
| Mgi Jnum | J:244243 | Mgi Id | MGI:5913022 |
| Doi | 10.1016/j.neurobiolaging.2017.03.031 | Citation | Vanden Dries V, et al. (2017) Amyloid precursor protein reduction enhances the formation of neurofibrillary tangles in a mutant tau transgenic mouse model. Neurobiol Aging 55:202-212 |
| abstractText | Alzheimer's disease is characterized by the presence of 2 neuropathological lesions: neurofibrillary tangles, composed of tau proteins which are highly phosphorylated and phosphorylated on uncommon sites, and amyloid plaques, containing the Ass peptides generated from the amyloid precursor protein (APP). Reduction of some APP proteolytic derivatives in Alzheimer's disease such as sAPPalpha fragment has been reported and sAPPalpha has been shown to affect tau phosphorylation. To investigate in vivo the effect of absence of APP protein and its fragments on tau phosphorylation and the formation of neurofibrillary tangles, we have generated mice deleted for APP gene and overexpressing a human mutant tau protein and developing neurofibrillary tangles (APPKOTg30 mice). These APPKOTg30 mice showed more severe motor and cognitive deficits, increased tau phosphorylation, increased load of neurofibrillary tangles, and increased p25/35 ratio in the brain, compared with Tg30 mice. These data suggest that APP and/or its proteolytic derivatives interfere with the formation of neurofibrillary tangles in a transgenic mouse model that will be useful for investigating the relationship between APP and tau. |
