TGFB1 and colitis: Recombinant acid lactic bacteria (recLAB) secreting serine protease inhibitors [elafin and secretory leukocyte protease inhibitor (SLPI)] induced more pronounced anti-inflammatory effects in a DSS-induced colitis mouse model compared to recLAB expressing anti-inflammatory cytokines (IL-10 and TGF-β1) (Bermudez-Humaran et al., 2015).