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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yang, G. Song, J. G. Li, Y. Gong, S. P. |
| Copyright Year | 2015 |
| Abstract | Recent studies have suggested that contactin-1 has a key role in cancer cell proliferation and migration, however the detailed mechanism of this process is still unclear. Here, human gastric cancer cell line MKN45 was employed. It was found that under hypoxia conditions contactin-1 mRNA and protein levels were both up-regulated by HIF-1α expression. Furthermore, although hypoxia increased the migration rate of MKN45 cells, contactin-1 (CNTN1) shRNA reversed this process. Meanwhile, RhoA V14 and RhoA V14 N19 mutation constructs were employed, and it was found that constitutively active form of RhoA reversed the cell migration suppression induced by contactin-1 knockdown, while dominant-negative form of RhoA blocked hypoxia induced hypermigration. Apart from this, contactin-1 displayed the ability to phosphorylate the RhoA activator p115 RhoGEF. Thus, under hypoxia conditions, elevated HIF-1α seems to up-regulate contactin-1 expression and by this activate RhoA and facilitate migration of cancer cells. |
| Starting Page | 112 |
| Ending Page | 119 |
| Page Count | 8 |
| File Format | |
| ISSN | 00268933 |
| Journal | Molecular Biology |
| Volume Number | 49 |
| Issue Number | 1 |
| e-ISSN | 16083245 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2015-02-14 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | hypoxia contactin-1 CNTN1 RhoA p115 Life Sciences Biochemistry Human Genetics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Structural Biology Biophysics |
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