Leflunomide was purchased from Qingdao Franken Biochem
Co. (Qingdao, China).Fetal bovine serum (FBS),
(Dulbecco's Modified Eagle Medium) (DMEM), trypsin/EDTA,
and Penicillin streptomycin, were purchased from Lonza
company, Switzerland.PeceolVR
(glyceryl monooleate) was
kindly provided of by Gattefosse (Lyon, France).