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Apexbio Technology LLC PF-543 1415562-82-1 10mM (in 1mL DMSO)
Supplier: Apexbio Technology LLC A37175.1
PF-543 (CAS 1415562-82-1) is a cell-permeable inhibitor targeting sphingosine kinase 1 (SphK1) an enzyme that phosphorylates sphingosine to sphingosine-1-phosphate (S1P) It displays potent inhibitory activity against SphK1 with an IC50 of 3 6 nM through sphingosine-competitive (non-ATP competitive) binding Treatment of SphK1-overexpressing head and neck cancer (1483) cells led to a ten-fold decrease in S1P levels confirming effective target engagement PF-543 is widely utilized as a research tool in studies investigating SphK1-mediated signaling pathways in cancer biology and immune cell trafficking
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