Potential Role of ASC, a Proapoptotic Protein, for Determining the Cisplatin Susceptibility of Lung Cancer Cells.

Potential Role of ASC, a Proapoptotic Protein, for Determining the Cisplatin Susceptibility of Lung Cancer Cells. Tohoku J Exp Med. 2018;244(2):133-144 Authors: Sakaizawa T, Matsumura T, Fujii C, Hida S, Toishi M, Shiina T, Yoshida K, Hamanaka K, Ito KI, Taniguchi S Abstract Primary lung cancer is the most frequent cause of cancer-related deaths worldwide. Cisplatin has been used as a key drug in the treatment for patients with lung cancer; however, most of the patients failed to respond to cisplatin within several months, and the mechanisms underlying the cisplatin resistance have not been fully elucidated. Apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) is a key adaptor protein in the formation of inflammasomes. ASC is also involved in apoptotic signaling. Importantly, ASC expression is decreased in lung cancer and various cancers, but its precise function in tumor progression remains unknown. To explore the hitherto unknown role of ASC in lung cancer, we initially searched for lung cancer cell lines with higher expression levels of ASC using Cancer Cell Line Encyclopedia (CCLE) database, thereby identifying the A549 human non-small cell lung cancer cell line. Accordingly, with retroviral shRNA, the expression of ASC was forced to decrease in A549 cells. Stable ASC-knockdown cells, thus established, showed the increased activities of proliferation, motility, and invasion, compared with control ...
Source: The Tohoku Journal of Experimental Medicine - Category: Research Authors: Tags: Tohoku J Exp Med Source Type: research