| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
Little is known regarding the influence of adipose tissue derived stem cells (ADSC) in gastric cancer (GC).We investigated the potential effects between GC cell lines and ADSC.
The sphere-forming efficiency of GC cells was significantly increased while directly co-cultured with ADSC. OCUM2MD3 cells generated subctaneous tumors increased in size after co-injection with ADSC in mouse model. Xenografts tissue revealed the expression of αSMA was increased in tumors generated by co-injection of OCUM2MD3 with ADSC in comparison with control tumors, which corresponds to the significant increase of fibrous area. The expressions of αSMA and FAP on ADSC were confirmed by fluorescent immunostaining. We also examined whether ADSC is associated with the chemo-sensitivity of OCUM2MD3 using 5-FU. ADSC enhance sphere formation and in vivo tumor growth of GC cells. ADSC also induced 5-FU-resistance, which suggests ADSC acts as CAF in tumor microenvironment of GC.
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