1. Expression of sirtuin 1 and 2 is associated with poor prognosis in non-small cell lung cancer patients.
- Author
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Ivana Grbesa, María J Pajares, Elena Martínez-Terroba, Jackeline Agorreta, Ana-Matea Mikecin, Marta Larráyoz, Miguel A Idoate, Koraljka Gall-Troselj, Ruben Pio, and Luis M Montuenga
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Medicine ,Science - Abstract
BACKGROUND:Sirtuin 1 (SIRT1) and sirtuin 2 (SIRT2) are NAD+-dependent protein deacetylases involved in the regulation of key cancer-associated genes. In this study we evaluated the relevance of these deacetylases in lung cancer biology. MATERIAL AND METHODS:Protein levels of SIRT1 and SIRT2 were determined in non-small cell lung cancer (NSCLC) cell lines and primary tumors from 105 patients. Changes in proliferation were assessed after SIRT1 and SIRT2 downregulation in lung cancer cell lines using siRNA-mediated technology or tenovin-1, a SIRT1 and SIRT2 inhibitor. RESULTS:High SIRT1 and SIRT2 protein levels were found in NSCLC cell lines compared with non-tumor lung epithelial cells. The expression of SIRT1 and SIRT2 proteins was also significantly higher in lung primary tumors than in normal tissue (P
- Published
- 2015
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