First Author | Anderson S | Year | 2016 |
Journal | Proc Natl Acad Sci U S A | Volume | 113 |
Issue | 37 | Pages | E5481-90 |
PubMed ID | 27566402 | Mgi Jnum | J:238282 |
Mgi Id | MGI:5818994 | Doi | 10.1073/pnas.1610994113 |
Citation | Anderson S, et al. (2016) MYC-nick promotes cell migration by inducing fascin expression and Cdc42 activation. Proc Natl Acad Sci U S A 113(37):E5481-90 |
abstractText | MYC-nick is a cytoplasmic, transcriptionally inactive member of the MYC oncoprotein family, generated by a proteolytic cleavage of full-length MYC. MYC-nick promotes migration and survival of cells in response to chemotherapeutic agents or withdrawal of glucose. Here we report that MYC-nick is abundant in colonic and intestinal tumors derived from mouse models with mutations in the Wnt, TGF-beta, and PI3K pathways. Moreover, MYC-nick is elevated in colon cancer cells deleted for FBWX7, which encodes the major E3 ligase of full-length MYC frequently mutated in colorectal cancers. MYC-nick promotes the migration of colon cancer cells assayed in 3D cultures or grown as xenografts in a zebrafish metastasis model. MYC-nick accelerates migration by activating the Rho GTPase Cdc42 and inducing fascin expression. MYC-nick, fascin, and Cdc42 are frequently up-regulated in cells present at the invasive front of human colorectal tumors, suggesting a coordinated role for these proteins in tumor migration. |