The invention relates to the use of immunomodulatory compounds for the treatment of diseases related to to an overproduction of inflammatory cytokines, such as diseases selected from the group consisting of asthma, atopic dermatitis, allergic rhinitis, prostatitis, inflammatory bowel disease, diabetes, and rhumatoid arthritis, said compounds being of general formula (I), wherein : m and n, independently from each other, are an integer ranging from 1 to 4, X and Y represent -COOH, -0-P(O)(OH), -O-SO(OH), -NH, -OH, -CONH(CH)-NH, -CO-NH-CH(COOH)-(CH)COOH, -CO-NH-CH(COOH)- (CH2)-NH, -O-CO-(CH)-NH,-O-CO-(CH)-CHOH-CHOH, -O-CO-(CH)-OH, -O-CO-(CH)-COOH, -O-CO-(CH)-CHO, -O-CO-(CH)-NH-CO-(CH)-COOH, R and R each designate an acyl group derived from a saturated or unsaturated, straight-or branched-chain carboxylic acid having from 2 to 18 carbon atoms, which is unsubstituted or bears one to three substituents selected among hydroxyl, dihydroxyphosphoryloxy, alkyl of 2 to 18 carbon atoms, alkoxy of 2 to 18 carbon atoms, acyloxy of 2 to 18 carbon atoms in the acyl moiety, amino, acylamino.