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| Content Provider | PubMed Central |
|---|---|
| Author | Han, Yu-chen Yu, Yan P. Nelson, Joel Wu, Chuanyue Wang, Hui Michalopoulos, George K. Luo, Jian-hua |
| Abstract | Mutation of integrin α7 (ITGA7) was previously identified in multiple human malignancies. Restoration of ITGA7 expression in prostate cancer and leiomyosarcoma cell lines suppressed tumor growth and cell motility both in vitro and in vivo. In this study, we showed that integrin-link kinase (ILK) binds with miniature chromosome maintenance 7 (MCM7), a DNA replication licensing protein. A 58 amino acid ILK binding motif was identified in the N-terminus of MCM7. Expression of ITGA7 induced phosphorylation of MCM7. Knocking down of ILK abrogated ITGA7 induced MCM7 phosphorylation. ANK, the dominant negative mutant of ILK, also blocked the phosphorylation of MCM7 induced by ITGA7. Phosphorylation of MCM7 reduced MCM7 chromatin association and inhibited cell growth. A MCM7 mutant that does not bind with ILK did not respond to ITGA7 stimulation, and behaved similar to a dominant MCM7 negative mutant and neutralized the effect of ITGA7. We conclude that ILK interaction with MCM7 and MCM7 phosphorylation may be a critical event in ITGA7 signaling pathway leading to tumor suppression. |
| Related Links | http://dx.doi.org/10.1158/0008-5472.can-09-4403 |
| Ending Page | 4384 |
| Page Count | 10 |
| Starting Page | 4375 |
| File Format | |
| ISSN | 00085472 |
| e-ISSN | 15387445 |
| Journal | Cancer research |
| Issue Number | 11 |
| Volume Number | 70 |
| Language | English |
| Publisher Date | 2010-06-01 |
| Access Restriction | Open |
| Subject Keyword | Cancer Research Oncology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
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