Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2010: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2009: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2008: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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Research Abstract |
Using class A scavenger receptor (SR-A, CD204)-deficient macrophages, we disclosed that SR-A suppresses the macrophage activation by inhibiting the binding of LPS to TLR4 in a competitive manner. The result indicates SR-A plays a pivotal role in the regulation of the LPS-induced inflammatory response. Density of CD163-positive macrophages in tumors positively correlated with the malignant grade of glioma and epithelial ovarian cancer. It was found that M2 macrophages and tumor cells interact via STAT3. By screening natural compounds, corosolic acid was found to suppress M2 polarization of macrophages. This compound could be a potentially new tool for tumor prevention and therapy.
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