The present protocol describes the development of a Crohn's-like colitis model in rodents. Transmural inflammation leads to stenosis at the TNBS instillation site, and mechanical enlargement is observed in the segment proximal to the stenosis. These changes allow studying mechanical stress in colitis.
Geesala, R., Lin, Y., Zhang, K., Qiu, S., Shi, X. A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease. J. Vis. Exp. (181), e63499, doi:10.3791/63499 (2022).