A stilbene with diverse biological activities active against C. tropicales C. neoformans A. fumigatus A. flavus and B. cinerea (MICs 25 12 12 25 12 Ug/ml respectively) induces nuclear translocation of AhR in HaCaT keratinocytes (EC50 0.16 nM) induces expression of the AhR target gene CYP1A1 in HaCaT keratinocytes at 1UM reduces activated immune cell-induced mRNA expression of the gene encoding IL-17a in isolated human keratinocytes at 10 UM