A new class of drugs that block PD-1, the PD-1 inhibitors, activate the immune system to attack tumors and are therefore used to treat cancer.
Description A high affinity mouse monoclonal against human PD-1 (CD279)
ELISA, WB, IHC, FFPE, IHC
Native PD-1 protein
Storage instructions Heat stable , shipped at ambient temp Upon delivery aliquot and store in fridge , longterm storage at -20°C.
Storage buffer PBS, pH 7.2
Concentration 100 µl at 1.0 mg/ml
Purified from hybridoma supernatant
Clonality Mouse Monoclonal
Yamane, H., et al. (2015). “Programmed cell death protein 1 and programmed death-ligand 1 are expressed on the surface of some small-cell lung cancer lines.” Am J Cancer Res 5(4): 1553-1557. PubMed
"Programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) play a major role in suppressing the immune system during the formation of the PD-1/PD-L1 pathway, which transmits an inhibitory signal to reduce T cell activity. PD-L1 is often expressed in various malignant tumors. In contrast, PD-1 is generally observed in activated lymphocytes and myeloid-derived dendritic cells. Of the malignant cells, only Jurkat cells under special conditions and angioimmunoblastic T-cell lymphoma tissue cells express PD-1 on their surface. METHODS: To clarify whether the PD-1/PD-L1 pathway participates in the immunotolerance of small-cell lung cancer (SCLC) cells, we examined the expressions of PD-1 and PD-L1 on the cell surface of SCLC cell lines using flow cytometry and reverse transcription polymerase chain reaction. RESULTS: Among the four SCLC cell lines examined, only SBC-3 expressed both PD-1 and PD-L1. CONCLUSIONS: We demonstrated that both PD-1 and PD-L1 molecules were co-expressed on the surface of SCLC cells. Although the biological implications of this remain unclear, we speculate that PD-1 and its ligand on the SCLC cells may participate in the growth inhibition of tumor cells as reported in cytotoxic T cells"
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