Inactivation of Icmt inhibits lung tumor development in mice with B-RAF-induced lung cancer
| dc.contributor.author | Lim, Hoo Ching | |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för kemi- och bioteknik | sv |
| dc.contributor.department | Chalmers University of Technology / Department of Chemical and Biological Engineering | en |
| dc.date.accessioned | 2019-07-03T12:22:34Z | |
| dc.date.available | 2019-07-03T12:22:34Z | |
| dc.date.issued | 2010 | |
| dc.description.abstract | Somatic point mutations of B-RAF are associated with ~8% of human cancer and result in deregulation of the MAPK pathway. Substitution of valine-to-glutamic acid at position 600, B-RAFV600E, accounts for approximately 90% of all B-RAF mutations in human cancer. Isoprenylcysteine carboxyl methyltransferase (ICMT) is an endoplasmic reticulum membranebound protein which catylzes post-translational carboxyl methylation of proteins encoding a C-terminal CAAX motif (C, cystein, A, aliphatic amino acids, X, any amino acid). Previous in vitro studies have shown that inactivation of ICMT might be a potential anticancer drug target. However, no studies have been done to investigate the effect of ICMT deficiency in B-RAF-induced malignancies. In the current study, we evaluated the impact of inactivating Icmt in the pathogenesis of B-RAF-induced lung tumors in mice and thereby validated ICMT as a potential anticancer target. By using a Cre-loxP recombination technique, we simultaneously switched on the expression of ocogenic B-RAFV600E and inactivated the Icmt expression on lung cells and primary mouse embryonic fibroblasts. Inactivation of Icmt significantly reduce the growth of B-RAF-induced lung tumors in mice. In addition, ICMT deficiency blocked B-RAF-induced transformation in primary mouse embryonic fibroblasts. These results indicate that targeting ICMT could be an attractive strategy to treat B-RAF-induced malignancies. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12380/123705 | |
| dc.language.iso | eng | |
| dc.setspec.uppsok | PhysicsChemistryMaths | |
| dc.subject | Industriell bioteknik | |
| dc.subject | Industrial Biotechnology | |
| dc.title | Inactivation of Icmt inhibits lung tumor development in mice with B-RAF-induced lung cancer | |
| dc.type.degree | Examensarbete för masterexamen | sv |
| dc.type.degree | Master Thesis | en |
| dc.type.uppsok | H |