Preferred Label : DR3 and DR4/5 Mediated Apoptosis Pathway;
NCIt synonyms : DR3 and DR4 5 Mediated Apoptosis Pathway;
NCIt related terms : Induction of apoptosis through DR3 and DR4/5 Death Receptors;
Alternative definition : BIOCARTA: Apoptosis is specifically induced via signaling through a family of receptors
known collectively as 'death receptors' including Fas, TNFR, DR3, -4 and -5. Death
receptor ligands characteristically initiate signaling via receptor oligomerization,
recruitment of specialized adaptor proteins and activation of caspase cascades. Apo3L
recruits initiator caspase 8 via the adapter protein FADD. Caspase 8 then oligomerizes
and is activated via autocatalysis. Activated caspase 8 stimulates apoptosis via two
parallel cascades: it directly cleaves and activates caspase-3, and it cleaves Bid
(a Bcl-2 family protein). Truncated Bid (tBid) translocates to mitochondria, inducing
cytochrome C release, which sequentially activates caspases 9 and 3. DR-3L can deliver
pro- or anti-apoptotic signals. DR-3 promotes apoptosis via the adaptor proteins TRADD/FADD
and the activation of caspase 8. Alternatively, apoptosis is inhibited via an adaptor
protein complex including RIP which activates NF-kB and induces survival genes including
IAP. Induction of apoptosis via Apo2L requires caspase activity, but the adaptor requirement
is unclear. (This definition may be outdated - see the DesignNote.);
NCIt note : 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Definition might be outdated or inaccurate.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/.;
Biocarta ID : h_deathPathway;
Origin ID : C39049;
UMLS CUI : C1511707;
Semantic type(s)
has_gene_product_element
pathway_has_gene_element