| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
We established 42 organiod derived from surgically resected polyps from five familial adenomatous polyposis(FAP) patients. Comprehensive gene expression analysis revealed that some genes are differentially expressed between attenuated FAP(AFAP)-derived organoids and classical FAP(CFAP)-derived organoids. Drug sensitivity assay demonstrated that AFAP-derived KRAS mutant organoid are sensitive to MEK inhibitors although CFAP-derived KRAS mutant organoids are resistant. These data suggest that the differentially expressed genes regulate sensitivity to RAS signal inhibitors.
We explored predictive biomarkers for immune checkpoint inhibitors. Using multiplex assay system, 57 serum proteins were analyzed. We identified proteins associated with clinical benefits from nivolumab. We also identified proteins associated with onset of immune-related adverse events(irAEs). However, no overlapped proteins were identified between clinical benefits and irAE onset.
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