JAK3-IN-2 is a potent and highly selective JAK3 inhibitor with IC50 of 0.15 nM. dispalys >4,300-fold selectivity over JAK1, JAK2 and TYK2, and other kinases BMX, EGFR, ITK and BTK; blocks cytokine signaling through JAK3, but not through other JAK family enzymes; inhibits IL-7 induced pSTAT5 in CD3+, CD8+ T cells with IC50 of 280 nM; sufficiently blocks the development of inflammation in a rat model of rheumatoid arthritis, while sparing hematopoiesis. 了解更多

Abrocitinib (PF-04965842) is a potent, orally active and selective JAK1 inhibitor, with IC50s of 29 and 803 nM for JAK1 and JAK2, respectively. Abrocitinib (PF-04965842) exhibits less active effect on TYK2 (IC50, 1.253 μM), and inhibits phosphorylation of STAT1, STAT3 and STAT5 after stimulation. Effective in autoimmune disease. 了解更多