Research Project
Grant-in-Aid for Scientific Research on Priority Areas
The purpose of this project is to evaluate the function of DC subsets and the mechanisms of Th1 /Th2 balance control, which are critical for development of tumor-specific CTL -mediated immunotherapy. We have demonstrated the following evidence. 1. Th1-dominant immunity is critical for activation of Th1 /Tc1 circuit important for tumor-specific immunotherapy. 2. BMDC1, which were induced from bone-marrow cells by culture with GM-CSF, IL-3 and Th1 cytokines, exhibited a potent stimulating activity for inducing allogeneic CTL. Moreover, combination therapy with BM DC1, inactivated tumor and tumor antigen protein caused a complete rejection of tumor tissue. 3. We established a culture method for inducing leukemia-specific CTL from PBMC of leukemia patients. 4. We established the method to prepare gene-modified tumor-specific Th1 cells using tumor-specific TCR genes or Iggene.Especially, it was demonstrated that transfer of class-I-restricted TCR genes into Th1 cells resulted in the generation of functional class-I-restricted Th1 cells. 5. CpG coencapsulated with tumor antigen protein induced tetramer-positive CTL in tumor-bearing mice and cured the mice from tumor. 6. We established a method to prepare Th1 cells, which specifically react to cancer-testis tumor antigen such as NY-ESO-1, MAGE-A4. These Th1 cells are useful to determine helper epitopes of tumor antigen.
All 2005 2004 2003 2002 2001 2000 Other
All Journal Article (52 results) Book (7 results) Patent(Industrial Property Rights) (10 results) Publications (32 results)
Int J Oncol 26
Pages: 679-684
Int J Oncol. 26・3
Cancer Res 64
Pages: 8754-8760
Pages: 1490-1495
Pages: 386-390
Immunol Lett 93
Pages: 17-25
Cancer Sci 95
Pages: 697-703
Int Immunol, :, 2004 16
Pages: 811-817
Biochem Biophys Res Commun 314
Pages: 468-475
Int Immunol 16
Pages: 1497-1505
Immunol Lett 95
Pages: 5-11
Autoimmunity (In press)
10014197100
10013567497
Cancer Res 64・23
Cancer Res 64・4
Cancer Res 64・1
Immunol Lett. 93・1
Cancer Sci. 95・9
Int Immunol 16・6
Biochem Biophys Res Commun 314・2
Int Immunol 16・10
Immunol Lett. 95・1
Biomedical Res 24
Pages: 299-307
Cancer Sci 94
Pages: 389-393
Immunol Lett 88
Pages: 221-226
Int Immunol 15
Pages: 837-843
Pages: 701-710
Cell Immunol 224
Pages: 98-105
Pages: 924-928
130004705174
50000825584
10012438724
Blood (In press)
Annals of Cancer Research and Therapy (In press)
(In press)
Annals of Cancer Research and Therapy (印刷中)
Autoimmunity (印刷中)