Preferred Label : Prion Disease Pathway;
NCIt related terms : Prion Disease;
Alternative definition : KEGG: Prion diseases, also termed transmissible spongiform encephalopathies (TSEs),
are a group of fatal neurodegenerative diseases that affect humans and a number of
other animal species. The etiology of these diseases is thought to be associated with
the conversion of a normal protein, PrPC, into an infectious, pathogenic form, PrPSc.
The conversion is induced by prion infections (for example, variant Creutzfeldt-Jakob
disease (vCJD), iatrogenic CJD, Kuru), mutations (familial CJD, Gerstmann-Straussler-Scheinker
syndrome, fatal familial insomnia (FFI)) or unknown factors (sporadic CJD (sCJD)),
and is thought to occur after PrPC has reached the plasma membrane or is re-internalized
for degradation. The PrPSc form shows greater protease resistance than PrPC and accumulates
in affected individuals, often in the form of extracellular plaques. Pathways that
may lead to neuronal death comprise oxidative stress, regulated activation of complement,
ubiquitin-proteasome and endosomal-lysosomal systems, synaptic alterations and dendritic
atrophy, corticosteroid response, and endoplasmic reticulum stress. In addition, the
conformational transition could lead to the lost of a beneficial activity of the natively
folded protein, PrPC.;
NCIt note : This pathway originally was KEGG_ID hsa05060.;
KEGG ID : hsa05020;
Origin ID : C38853;
UMLS CUI : C3536911;
Automatic exact mappings (from CISMeF team)
Semantic type(s)
UMLS correspondences (same concept)
has_gene_product_element
pathway_has_gene_element