tokens: 15-Deoxy-Delta ( 12 , 14 ) -PGJ ( 2 ) ( 15d-PGJ ( 2 ) ) , a PPAR-gamma agonist , has a dose-dependent antiproliferative and cytotoxic effect on normal and malignant B cells as shown by [ ( 3 ) H ] thymidine and 3- [ 4 , 5-dimethylthiazol-2-yl ] -2 , 5-diphenyltetrazolium bromide assays .