Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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Outline of Final Research Achievements |
In this research project, we isolated highly tumorigenic cancer stem cells from human colon cancer, cervical cancer and lung cancer cells. We examined the expression profiles of cancer stem cells by cDNA microarry, and we found that numbers of testis-related genes are expressed in cancer stem cells. Those are OR7C1, BORIS SMCP and DNAJB8. Importantly, gene specific knockdown using siRNAs revealed that testis-related genes have important role in the maintenance of cancer stem cells. And we also identified testis-related gene products can be targeted by immunotherapy. These results indicate that immunotherapy targeting testis-related gene products is a promising approach to target cancer stem cells.
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