Gene expression in murine colon mucosa following activation of stromal Hedgehog signalling

In the intestine, Hedgehog (Hh) signalling orchestrates epithelial homeostasis in a bidirectional loop. Differentiated enterocytes secrete the ligand leading to active downstream signaling exclusively in the stroma. In turn, Hh-driven stromal factors contribute to the control of intestinal stem cell numbers and induce epithelial differentiation.

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Gerling M, Büller NV, Kirn LM, Joost S, Frings O, Englert B, Bergström Å, Kuiper RV, Blaas L, Wielenga MC, Almer S, Kühl AA, Fredlund E, van den Brink GR, Toftgård R