| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
In order to visualize and analyze the intercellular interaction of cancer cells and microenvironmental cells in breast cancer bone metastases in living mouse, we developed an innovative fluorescence imaging system of multicolor imaging with high spatial resolution or high temporal resolution within the bone marrow. Furthermore, we established bone metastasis models using breast cancer cell lines expressing various fluorescent proteins, and successfully imaged cancer cells and microenvironment including blood vessels, stromal cells, matrix collagen in the bone marrow. Finally, in bone marrow, we identified breast cancer cells that are involved in resistance to anticancer drugs that survive administration of 5 FU of anticancer drugs, and succeeded in imaging the interaction with various microenvironmental cells.
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