CLMP Is Essential for Intestinal Development, but Does Not Play a Key Role in Cellular Processes Involved in Intestinal Epithelial Developmentvan der Werf, C. S., Hsiao, N-H., Conroy, S., Paredes, J., Ribeiro, A. S., Sribudiani, Y., Seruca, R., Hofstra, R. M. W., Westers, H. & van IJzendoorn, S. C. D., 27-Feb-2013, In : PLoS ONE. 8, 2, 6 p., e54649.
Research output: Contribution to journal › Article › Academic › peer-review
Loss-of-function mutations in CLMP have been found in patients with Congenital Short Bowel Syndrome (CSBS), suggesting that its encoded protein plays a major role in intestinal development. CLMP is a membrane protein that co-localizes with tight junction proteins, but its function is largely unknown. We expressed wild-type (WT)-CLMP and a mutant-CLMP (associated with CSBS) in human intestinal epithelial T84 cells that, as we show here, do not produce endogenous CLMP. We investigated the effects of WT-CLMP and mutant-CLMP proteins on key cellular processes that are important for intestinal epithelial development, including migration, proliferation, viability and transepithelial resistance. Our data showed that expression of WT-CLMP or mutant-CLMP does not affect any of these processes. Moreover, our aggregation assays in CHO cells show that CLMP does not act as a strong adhesion molecule. Thus, our data suggest that, in the in vitro model systems we used, the key processes involved in intestinal epithelial development appear to be unaffected by WT-CLMP or mutant-CLMP. Further research is needed to determine the role of CLMP in the development of the intestine.
|Number of pages||6|
|Publication status||Published - 27-Feb-2013|
- TIGHT JUNCTION PROTEIN, ADHERENS JUNCTIONS, FAMILY, EXPRESSION, CELLS