General Information:

Id: 397
Diseases: Alzheimer disease - [OMIM]
Mus musculus
brain/neuron-specific insulin receptor knockout (NIRKO) mouse
article
Reference: Schubert M et al.(2004) Role for neuronal insulin resistance in neurodegenerative diseases Proc. Natl. Acad. Sci. U.S.A. 101: 3100-3105 [PMID: 14981233]

Interaction Information:

Comment Abolishing neuronal insulin signaling in NIRKO mice leads to major alterations in Akt and GSK3B phosphorylation and hyperphosphorylation of Tau protein at sites associated with neurodegenerative diseases. Altered insulin signaling in the brain leads to one of the hallmarks of Alzheimer's disease.
Formal Description
Interaction-ID: 1698

phenotype

insulin resistance

affects_activity of

Comment Abolishing neuronal insulin signaling in NIRKO mice leads to major alterations in Akt and GSK3B phosphorylation and hyperphosphorylation of Tau protein at sites associated with neurodegenerative diseases. Altered insulin signaling in the brain leads to one of the hallmarks of Alzheimer's disease.
Formal Description
Interaction-ID: 1701

affects_activity of

Comment NIRKO mice represent a unique model in which to study the consequences of isolated CNS-specific disruption of IR signaling on the biochemistry and function of the brain. The reduced phosphorylation of Akt and GSK3B in brains of NIRKO mice, in the presence of otherwise intact neurotrophic signaling, demonstrates directly the relative contribution and importance of IR signaling for the activation of this pathway in the CNS.
Formal Description
Interaction-ID: 1705

organism model

NIR KO mouse

decreases_phosphorylation of

gene/protein

AKT1

in brain
Drugbank entries Show/Hide entries for AKT1
Comment NIRKO mice represent a unique model in which to study the consequences of isolated CNS-specific disruption of IR signaling on the biochemistry and function of the brain. The reduced phosphorylation of Akt and GSK3B in brains of NIRKO mice, in the presence of otherwise intact neurotrophic signaling, demonstrates directly the relative contribution and importance of IR signaling for the activation of this pathway in the CNS.
Formal Description
Interaction-ID: 1706

organism model

NIR KO mouse

decreases_phosphorylation of

gene/protein

GSK3B

in brain
Drugbank entries Show/Hide entries for GSK3B
Comment Protein extracts from brains of NIRKO mice display a 3.5-fold increase in site-specific Tau hyperphosphorylation at Thr-231 but not at Ser-202. Phosphorylation of Tau at Thr-231 in humans has been correlated with cognitive decline and suggested as a biomarker for Alzheimer's disease.
Formal Description
Interaction-ID: 1707

organism model

NIR KO mouse

increases_phosphorylation of

gene/protein

MAPT

in brain; at Thr231
Comment Protein extracts from brains of NIRKO mice display a 3.5-fold increase in site-specific Tau hyperphosphorylation at Thr-231 but not at Ser-202. Phosphorylation of Tau at Thr-231 in humans has been correlated with cognitive decline and suggested as a biomarker for Alzheimer's disease.
Formal Description
Interaction-ID: 1708

organism model

NIR KO mouse

NOT increases_phosphorylation of

gene/protein

MAPT

in brain; at Ser202
Comment Phosphorylation of Tau at Thr-231 in humans has been correlated with cognitive decline and suggested as a biomarker for Alzheimer's disease.
Formal Description
Interaction-ID: 1709

protein modification

MAPT-phosThr231

increases_activity of

in brain; if MAPT is phosphorylated at Thr231
Comment NIRKO mice represent a unique model in which to study the consequences of isolated CNS-specific disruption of IR signaling on the biochemistry and function of the brain. The reduced phosphorylation of Akt and GSK3B in brains of NIRKO mice, in the presence of otherwise intact neurotrophic signaling, demonstrates directly the relative contribution and importance of IR signaling for the activation of this pathway in the CNS.
Formal Description
Interaction-ID: 139769

organism model

NIR KO mouse

decreases_quantity of

gene/protein

NIR

in brain
Drugbank entries Show/Hide entries for NIR
Comment Protein extracts from brains of NIRKO mice display a 3.5-fold increase in site-specific Tau hyperphosphorylation at Thr-231 but not at Ser-202. Phosphorylation of Tau at Thr-231 in humans has been correlated with cognitive decline and suggested as a biomarker for Alzheimer's disease.
Formal Description
Interaction-ID: 145057

organism model

NIR KO mouse

increases_quantity of

protein modification

MAPT-hyperphos

in brain; at Thr231