Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Research Abstract |
Three critical tumor suppressors (p15/ARF /p16) encoded by the INK4/ARF locus are key regulators of tumorigenesis. In this study, to elucidate a higher-ordered epigenetic regulation of the locus in oral squamous cell carcinoma (OSCC) and to develop novel diagnostic methods based on epigenetic profile, we investigated the relevance between clinical effect and epigenetic alterations inOSCC. Chromosome conformation capture assay revealed that higher-order chromatin structure of the INK4/ARF locus dynamically changed in OSCC cell line. DNA methylation analysis demonstrated that hypermethylation of MGMT and TFAP2E genes were associated with pathological response to 5-FU-based chemoradiotherapy. These results suggest that methylation status of these genes may provide the prediction of drug sensitivity in OSCC.
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