PloS one, 2013-02, Vol.8 (2), p.e57391
2013
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- Autor(en) / Beteiligte
- Titel
- Klotho sensitizes human lung cancer cell line to cisplatin via PI3k/Akt pathway
- Ist Teil von
- PloS one, 2013-02, Vol.8 (2), p.e57391
- Ort / Verlag
- United States: Public Library of Science
- Erscheinungsjahr
- 2013
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- Klotho was first identified in 1997 and has been considered as an anti-aging gene. Emerging evidence demonstrates that klotho has a close relationship with cancers, including lung cancer, breast cancer, etc, by inhibiting the proliferation and promoting apoptosis of cancer cells. Cisplatin has been the most widely used drug in the first-line chemotherapy. However, the increase in cisplatin-resistant cancer cells has become a major obstacle in clinical management of cancers. In our study, we for the first time demonstrated that klotho could attenuate the resistance of lung cancer to cisplatin based chemotherapy and the apoptosis of the resistant cells with klotho overexpression was markedly increased. However, klotho knockdown cells showed enhanced resistance to chemotherapy. Further analysis showed that inhibition of PI3K/Akt pathway with specific inhibitor (LY294002) attenuated the promotive effects on cancer growth following interfering with klotho shRNA. Moreover, we demonstrated that klotho modulated the resistance to cisplatin in a xenograft nude mice model. These observations suggested that klotho could improve the resistance of lung cancer cells to chemotherapy and may serve as a potential target for the gene therapy of lung cancers resistant to cisplatin based chemotherapy.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1932-6203eISSN: 1932-6203DOI: 10.1371/journal.pone.0057391Titel-ID: cdi_plos_journals_1351359566
- Format
- –
- Schlagworte
- 1-Phosphatidylinositol 3-kinase, Aging, AKT protein, Analysis, Animals, Antineoplastic Agents - pharmacology, Apoptosis, Apoptosis - drug effects, Apoptosis - genetics, Biology, Breast cancer, Cancer, Cancer therapies, Cell cycle, Cell Line, Tumor, Cell proliferation, Chemotherapy, Chromones - pharmacology, Cisplatin, Cisplatin - pharmacology, Deoxyribonucleic acid, DNA, Drug resistance, Drug Resistance, Neoplasm - drug effects, Drug Resistance, Neoplasm - genetics, Enzyme Inhibitors - pharmacology, Epigenetics, Gene Expression Regulation, Neoplastic - drug effects, Gene therapy, Genes, Genetic Vectors, Geriatrics, Glucuronidase - antagonists & inhibitors, Glucuronidase - genetics, Glucuronidase - metabolism, Health aspects, Humans, Inhibition, Insulin-like growth factors, Kinases, Klotho protein, Laboratory animals, Lentivirus, Lung cancer, Lung diseases, Lung Neoplasms - drug therapy, Lung Neoplasms - genetics, Lung Neoplasms - metabolism, Lung Neoplasms - pathology, Male, Medicine, Mice, Mice, Nude, Morpholines - pharmacology, Motility, Ovarian cancer, Phosphatidylinositol 3-Kinases - antagonists & inhibitors, Phosphatidylinositol 3-Kinases - genetics, Phosphatidylinositol 3-Kinases - metabolism, Proteins, Proto-Oncogene Proteins c-akt - antagonists & inhibitors, Proto-Oncogene Proteins c-akt - genetics, Proto-Oncogene Proteins c-akt - metabolism, RNA, Small Interfering - genetics, Signal Transduction - drug effects, Tumor Burden - drug effects, Xenograft Model Antitumor Assays, Xenografts