Protective effects of ψ taraxasterol 3-O-myristate and arnidiol 3-O-myristate isolated from Calendula officinalis on epithelial intestinal barrier

The triterpene esters psi taraxasterol-3-O-myristate (1) and amidio1-3-O-myristate (2) were tested for their ability to protect epithelial intestinal barrier in an in vitro model. Their effects on ROS production and on trans-epithelial resistance were investigated on CaCo-2 cell monolayers both in basal and stress -induced conditions. Both compounds were able to modulate the stress damage induced by H2O2 and INF gamma + TNF alpha, showing a potential use as model compounds for the study of new therapeutic agents for intestinal inflammations.