Loss of Integrin-Linked Kinase Leads to Dysplasia of the Colon in Mice

Abstract

Normal development of the colon is essential for well-being during the life span. Integrin linked kinase (ILK), which is a key part of the integrin signaling pathway, connects intracellular and extracellular signaling pathways and is evolutionally conserved. It has been shown that ILK knockouts can lead to abnormal formation of various organs. In our study, we found that deletion of ILK by platelet-derived growth factor receptor B (PDGFR[Formula: see text]-Cre leads to the abnormal migration of neural crest cells (NCCs) and the shortening of the gastrointestinal tract, along with the expansion of the colon cavity and dysplasia of the intestinal nerve fibers. In conclusion, ILK is required for normal colon development.