Figure 1.
A model of the differential transcription of REG genes in colon crypt cells in Crohn’s disease and ulcerative colitis. Increased interleukin-22 induced transcriptions of REG1/3 in Crohn’s disease (orange solid arrows) are relatively attenuated in ulcerative colitis (orange dotted arrows), leading to CDX2-activated REG transcriptions in ulcerative colitis (black solid arrows), but not in Crohn’s disease (black dotted arrows). IL: Interleukin; TGF: Transforming growth factor; TLR: Toll-like receptor.