Home Products Tofacitinib citrate (CP-690550 citrate)
Tofacitinib citrate (CP-690550 citrate)
CAS NO: 540737-29-9
Molecular Formula: C16H20N6O.C6H8O7
Molecular Weight: 504.49
Purity: 98% min
Solubility: In DMSO
Storage: -20°C
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Remarks: Tofacitinib inhibits IL-2-mediated human T cell blast proliferation and IL-15-induced CD69 expression with IC50 of 11 nM and 48 nM, respectively. Tofacitinib prevents mixed lymphocyte reaction with IC50 of 87 nM. Tofacitinib treatment of murine factor-dependent cell Patersen¨Cerythropoietin receptor (FDCP-EpoR) cells harboring human wild-type or V617F JAK2 leads to prevention of cell proliferation with IC50 of 2.1 µM and 0.25 µM, respectively. Tofacitinib inhibits interleukin-6-induced phosphorylation of STAT1 and STAT3 with IC50 of 23 nM and 77 nM, respectively. Moreover, Tofacitinib generates a significant pro-apoptotic effect on murine FDCP-EpoR cells carrying JAK2VV617F, whereas a lesser effect was observed for cells carrying wild-type JAK2. This activity is coupled with the inhibition of phosphorylation of the key JAK2V617F-dependent downstream signaling effectors signal transducer and activator of transcription (STAT)3, STAT5, and v-akt murine thymoma viral oncogene homolog (AKT).

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