Kaempferol (10-20 μM) inhibited mast cell degranulation and prostaglandin release, leading to the development of aberrant airways in basophilic leukaemia (RBL-2H3) mast cells obtained from dinitrophenylated bovine serum albumin (DNP-BSA)-sensitised rat. This evidence concerns the gene ALB and acute basophilic leukemia.