Serine protease mauritanicain from euphorbia mauritanica and phorbol-12-myristate-13-acetate modulate the IL-8 release in fibroblasts and HaCaT keratinocytes. Guenther, F., Maus, D., Hedtrich, S. and Melzig, M.F. Planta Medica 85 (7): 578-582. May 2019