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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Caspase-9 regulates cisplatin-induced apoptosis in human head and neck squamous cell carcinoma cells.

The aim of this study was to understand the molecular requirements for cisplatin-induced apoptosis in human head and neck squamous cell carcinoma (HNSCC) cell death. Cisplatin induced apoptosis in HNSCC cell lines, HSC-2, HSC-3 and HSC-4 in a dose-dependent manner. However, cisplatin did not induce the expression of Fas-ligand mRNA or upregulation of Fas protein. By caspase activation assays, cisplatin induced Caspase-3 (Casp-3), -8 and -9 activation. In all three lines tested, the use of a specific inhibitor of Casp-9 almost completely blocked cisplatin-induced apoptosis, while the use of Casp-3 and -8 inhibitors resulted in a partial blockade of cisplatin-induced apoptosis. Our results strongly suggest that Casp-9-dependent apoptosis plays an important role in cisplatin-induced HNSCC apoptosis.[1]

References

  1. Caspase-9 regulates cisplatin-induced apoptosis in human head and neck squamous cell carcinoma cells. Kuwahara, D., Tsutsumi, K., Kobayashi, T., Hasunuma, T., Nishioka, K. Cancer Lett. (2000) [Pubmed]
 
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