Here we describe a technique to quantify the barrier integrity of small intestinal organoids. The fact that the method is based on living organoids enables the sequential investigation of different barrier integrity modulating substances or combinations thereof in a time-resolved manner.
Bardenbacher, M., Ruder, B., Britzen-Laurent, N., Naschberger, E., Becker, C., Palmisano, R., Stürzl, M., Tripal, P. Investigating Intestinal Barrier Breakdown in Living Organoids. J. Vis. Exp. (157), e60546, doi:10.3791/60546 (2020).