| Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2016: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Outline of Final Research Achievements |
In this study, we examined if it was possible to develop maging system capable of the detection of micrometastatic lymph nodes (LNs) and the mapping of detailed anatomical position of the LNs by using contrast-enhanced high-frequency ultrasound (CE-HFUS) imaging. We used MXH10/Mo/lpr mice in which LNs are similar size as those of human as a LN metastasis model. This model enabled us to observe the process of the metastasis formation from the onset by using CE-HFUS 3D, bioluminescence, and micro CT 3Dimaging. In addition, by preparing liposomes encapsulating ICG and capturing the flow of fluorescent particles with a near infrared camera or fluorescent stereomicroscope, we investigated whether the identification of both of LNs and the lymph network can be made. As a result, it was shown that this method is effective for the detection and mapping of LN which becomes the relay point in the lymph network where existence of micrometastatic LN is assumed.
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