Systematic name M11106
Brief description Inactivation of Gsk3 by AKT causes accumulation of b-catenin in Alveolar Macrophages
Full description or abstract Lipopolysaccharide. One of the key actions of AKT is to block apoptosis. AKT phosphorylation of NF-kB promotes the survival and activation of macrophages responding to LPS. Another substrate of AKT is the protein kinase Gsk3-beta. AKT phosphorylates and deactivates Gsk3-beta. Non-phosphorylated Gsk3-beta is active and phosphorylates beta-catenin, leading to its degradation in the ubiquitin dependent proteosome pathway. Stimulation by LPS causes the accumulation of beta-catenin in the nucleus and the activation of genes in concert with the transcription factor LEF1. This pathway is probably not restricted to alveolar pathway, but leads to the activation of beta-catenin dependent genes by LPS in other cells as well. Other pathways regulate this pathway also, such as the modulation of PI3 kinase activity by ceramide, and the inhibition of Gsk3-beta activity by the Wnt/frizzled/disheveled (DSH) pathway.
Collection C2: curated gene sets
      CP: canonical pathways
            CP:BIOCARTA: BioCarta gene sets
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Organism Homo sapiens
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Version history 7.0: Changed members. Upgraded to final version of Biocarta.

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