Cancer immunotherapy by PD-1 blockade (WP4585)

Immune checkpoints are hardwired into the immune system and are crucial for maintaining self-tolerance. Tumors can use these checkpoints to protect themselves from immune system attacks. One such immune checkpoint is PD-1 (programmed cell death 1 protein), which binds to its ligand PD-L1 and inhibits immune cell activity, including T cell activity. By upregulating PD-L1, cancer cells can inhibit T cells that might otherwise attack. One strategy for cancer immunotherapy is to block this kind of negative feedback, thereby increasing anti-cancer T-cell activity. For the PD-1 checkpoint, cancer immunotherapeutics block either the PD-1 receptor, or the PD-L1 ligand. The [ 2018 Nobel prize in Physiology or Medicine] was awarded to jointly to James Allison and Tasuku Honjo for their discovery of cancer therapy by inhibition of negative immune regulation. Based on and figure 4B in the review by [ Pardoll] and figure 1 in the review by [ Sharpe and Pauken].
last edited


Khanspers and Fehrhart

Cited In


Homo sapiens




Disease Ontology: cancer

Pathway Ontology: adaptive immune response pathway cancer pathway

Cell Type Ontology: T cell


Label Type Compact Identifier
Tumor-associatedantigen GeneProduct None
Pembrolizumab Metabolite wikidata:Q13896859
CD8A GeneProduct ensembl:ENSG00000153563
CD274 GeneProduct ensembl:ENSG00000120217
IFNG GeneProduct ensembl:ENSG00000111537
PDCD1LG2 GeneProduct ensembl:ENSG00000197646
Ras signaling Pathway wikipathways:WP4223
Nivolumab Metabolite wikidata:Q7041828
MHC I Protein ensembl:ENSG00000206503
STAT3 GeneProduct ensembl:ENSG00000168610
Pidilizumab Metabolite wikidata:Q7191298
TRA GeneProduct ncbigene:6955
JUN GeneProduct ensembl:ENSG00000177606
Durvalumab Metabolite wikidata:Q19904005
BATF GeneProduct ensembl:ENSG00000156127
Avelumab Metabolite wikidata:Q21083261
Atezolizumab Metabolite wikidata:Q20707748
CD3D GeneProduct ensembl:ENSG00000167286
ZAP70 GeneProduct ensembl:ENSG00000115085
LCK GeneProduct ensembl:ENSG00000182866
MDX-1105 Metabolite None
NFATC1 GeneProduct ensembl:ENSG00000131196
PDCD1 GeneProduct ensembl:ENSG00000188389
AMP-224 Metabolite None
PTPN11 GeneProduct ensembl:ENSG00000179295
Tislelizumab Metabolite kegg.drug:D11487
TRB GeneProduct ncbigene:6957
MHC II Protein ensembl:ENSG00000196126
BATF GeneProduct ensembl:ENSG00000156127
CD3E GeneProduct ensembl:ENSG00000198851
CD3G GeneProduct ensembl:ENSG00000160654
NFKB1 GeneProduct ensembl:ENSG00000109320
PI3K signaling Pathway wikipathways:WP4172
CD8B GeneProduct ensembl:ENSG00000172116
NFATC2 GeneProduct ensembl:ENSG00000101096
NFATC3 GeneProduct ensembl:ENSG00000072736
NFATC4 GeneProduct ensembl:ENSG00000100968
NFAT5 GeneProduct ensembl:ENSG00000102908


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