Mechanistic study of pancreatic cancer cell radioresistance conferred by Aurora-A
10.3969/j.issn.1007-3969.2013.12.007
- VernacularTitle:Aurora-A促进胰腺癌细胞放射抵抗的机制研究
- Author:
Huizhen SUN
;
Gong YANG
- Publication Type:Journal Article
- Keywords:
Aurora-A;
Pancreatic cancer;
Radiosensitivity
- From:
China Oncology
2013;(12):974-979
- CountryChina
- Language:Chinese
-
Abstract:
Background and purpose:Aurora-A is a member of serine/threonine kinase family. The abnormal expression of Aurora-A induces tumorigenesis and radioresistance. This study was aimed to investigate the association of Aurora-A with radioresistance. Methods: Capan-1 cells were treated with Aurora-A kinase inhibitor, and then used to test cell proliferation, anchorage independent assay, cell cycle, and cell cycle regulatory proteins. Treated cells were also used to detect cell apoptosis afterγ-irradiation. Results:Cell growth and colony number in soft agar were decreased after treatment with Aurora-A inhibitor. Treatment of cells with Aurora-A inhibitor also down-regulated the expression of Cyclin D1, CDK2 and CDK6 to induce cell cycle arrest at G1/S and G2/M phases, but promoted cell apoptosis afterγ-irradiation. Conclusion:Treatment of pancreatic cancer cells with Aurora-A kinase inhibitor blocks cell proliferation and cell cycle progression, and promotes sensitivity of cells to radiation. Thus, Aurora-A may be used as one of therapeutic targets to increase the sensitivity of pancreatic cancer radiotherapy.
