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- NCIT_C39179 NCIT_NHC0 "C39179" @default.
- NCIT_C39179 NCIT_P106 "Functional Concept" @default.
- NCIT_C39179 NCIT_P108 "Hypoxia Pathway" @default.
- NCIT_C39179 NCIT_P207 "C1512576" @default.
- NCIT_C39179 NCIT_P216 "h_p53hypoxiaPathway" @default.
- NCIT_C39179 NCIT_P325 "Hypoxic stress, like DNA damage, induces p53 protein accumulation and p53-dependent apoptosis in oncogenically transformed cells. Unlike DNA damage, hypoxia does not induce p53-dependent cell cycle arrest, suggesting that p53 activity is differentially regulated by these two stresses. Hypoxia induces p53 protein accumulation, but in contrast to DNA damage, hypoxia fails to induce endogenous downstream p53 effector mRNAs and proteins, such as p21, Bax, CIP1, WAF1, etc. Hypoxia does not inhibit the induction of p53 target genes by ionizing radiation, indicating that p53-dependent transactivation requires a DNA damage-inducible signal that is lacking under hypoxic treatment alone. The phosphatidylinositol 3-OH-kinase-Akt pathway inhibits p53-mediated transcription and apoptosis. Mdm2, a ubiquitin ligase for p53, plays a central role in regulation of the stability of p53 and serves as a good substrate for Akt. Mdm-2 targets the p53 tumor suppressor for ubiquitin-dependent degradation by the proteasome, but, in addition, the p53 transcription factor induces Mdm-2, thus, establishing a feedback loop. Hypoxia or DNA damage by abrogating binding of HIF-1 with VHL and p53 with Mdm-2, respectively, leads to stabilization and accumulation of transcriptionally active HIF-1 and p53. At the molecular level, DNA damage induces the interaction of p53 with the transcriptional activator p300 as well as with the transcriptional corepressor mSin3A. In contrast, hypoxia primarily induces an interaction of p53 with mSin3A, but not with p300. (This definition may be outdated - see the DesignNote.)" @default.
- NCIT_C39179 NCIT_P366 "Hypoxia_Pathway" @default.
- NCIT_C39179 NCIT_P98 "The BIOCARTA Definition (ALT_DEFINITION) for this pathway concept was provided by BioCarta. This property was not created by, nor is it maintained by the NCI Thesaurus staff. Additionally, BioCarta is no longer updating its pathway data; thus, the BIOCARTA Definition might be outdated or inaccurate. Please see the Terms and Conditions for Use at http://www.biocarta.com/." @default.
- NCIT_C39179 normalizedInformationContent "75.590086567603848" @default.
- NCIT_C39179 referenceCount "40" @default.
- NCIT_C39179 hasExactSynonym "Hypoxia Pathway" @default.
- NCIT_C39179 hasExactSynonym "Hypoxia and p53 in the Cardiovascular system" @default.
- NCIT_C39179 type Class @default.
- NCIT_C39179 isDefinedBy ncit.owl @default.
- NCIT_C39179 label "Hypoxia Pathway" @default.
- NCIT_C39179 subClassOf NCIT_C20633 @default.
- NCIT_C39179 subClassOf NCIT_C39179 @default.
- NCIT_C39179 subClassOf NCIT_C39701 @default.