TABLE 3

Effect of crisaborole, compd2, compd3, compd4, apremilast, and roflumilast on cytokine secretion from human leukocytes in vitro

CompoundIC50 Value (No. of Independent Experiments)
TNF-αaIL-23bIL-17cIL-4cIL-13cIL-5dIL-2eIFN-γeIL-22f
nM
Crisaborole170 (14)2400 (3)8300 (2)480 (4)22,000 (10)2000 (7)210 (11)700 (12)NT
Compd224 (3)32 (2)8200 (2)8100 (2)8200 (2)37 (2)31 (3)32 (3)51 (2)
Compd33.4 (8)7.7 (6)240 (2)410 (4)1400 (3)31 (2)5.8 (5)4.2 (5)14 (9)
Compd40.56 (13)73 (2)1500 (2)190 (5)1800 (5)8.4 (3)0.86 (8)1.9 (6)1.8 (3)
Apremilast15 (8)22 (3)1500 (2)7100 (4)30,000 (4)202 (2)31 (4)21 (3)86 (4)
Roflumilast0.49 (7)0.39 (2)520 (2)7.6 (2)>100,000 (4)10 (2)0.68 (4)0.10 (3)5.9 (4)
  • NT, not tested.

  • a LPS stimulation for 24 hours.

  • b LPS/IFN-γ stimulation for 24 hours.

  • c Concanavalin A stimulation for 48 hours.

  • d PHA-L stimulation for 48 hours.

  • e PHA stimulation for 24 hours.

  • f Anti-CD2/CD3/CD28 stimulation for 24 hours.