For the Mouse gene set with the same name, see BIOCARTA_EPONFKB_PATHWAY

Systematic name M6917
Brief description Erythropoietin mediated neuroprotection through NF-kB
Full description or abstract Erythropoietin (Epo) is most commonly known as the cytokine secreted by the kidneys that stimulates red blood cell production and is used as a drug for the treatment of anemias. Epo is also secreted in the brain in response to hypoxia, such as ischemic stroke. Epo production in the brain is stimulated by the hypoxia-inducible transcription factor HIF-1. Administration of Epo to the brain in rodents before hypoxic stress or other neuronal stresses is neuroprotective, preventing neuronal apoptosis. The erythropoietin receptor (EpoR) is known to associate with JAK kinases that phosphorylate and activate the STAT family of transcription factors. The neuroprotection by Epo involves cross-talk between Epo receptor and anti-apoptotic pathways through activation of NF-kB by the JAK2 kinase. Epo stimulates JAK2 phosphorylation of I-kB, releasing NF-kB to translocate into the nucleus and activate transcription of neuroprotective genes. Neuroprotective genes activated by NF-kB include the anti-oxidant enzyme manganese superoxide dismutase and calbindin-D(28k). The erythropoietin receptor is also essential for proper brain development in mice. The absence of EpoR causes high levels of neuronal apoptosis in the developing mouse brain, further confirming the important role of Epo as a neuroprotective agent.
Collection C2: Curated
      CP: Canonical Pathways
            CP:BIOCARTA: BioCarta Pathways
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Version history 7.0: Changed members. Upgraded to final version of Biocarta.

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