IL22 and colitis: Exosome-like nanoparticles (ELNs) mdo-miR7267-3p-mediated targeting of Lactobacillus rhamnosus (LGG) monooxygenase ycnE yielded increased indole-3-carboxaldehyde, inducing the production of interleukin (IL)-22 and ameliorating mouse colitis via IL-22-dependent mechanisms [15].