Research Project
Grant-in-Aid for Scientific Research (C)
In the previous study, we developed a method to generate dendritic cells (DC) from mouse embryonic stem (ES) cells (ES-DC). Genetic modification of ES-DC can readily be done by transfection of ES cells and subsequent their differentiation to DC. In this research period, we carried out the following projects.Anti-tumor immunotherapy by ES-DCImmunization with DC expressing antigen plus T cell-attracting chemokines provided protection from antigen-expressing tumor cells more potently than that with antigen only. We demonstrated that anti-tumor immunotherapy with ES-DC was effective even in the allogeneic recipient mice, if some of MHC alleles were shared by the ES-DC and the mice. ES-DC expressing Glypican-3, a recently identified oncofetal antigen, induced protective immunity against highly metastatic mouse melanoma, B16-F10.Antigen-specific down-modulation of immune response by ES-DCWe tried to establish a method for antigen-specific down-modulation of immune response by ES-DC expressing antigen along with immuno-suppressive molecules. We demonstrated that severity of myelin oligodendrocyte glycoprotein (MOG) peptide-induced experimental autoimmune encephalomyelitis (EAE) was reduced in mice treated with the double-transfectant ES-DC, presenting myelin oligodendrocyte glycoprotein (MOG) peptide in the context of MHC class II molecules and simultaneously expressing TNF-related apoptosis-inducing ligand (TRAIL) or Programmed Death-1 ligand (PD-L1). In addition, we obtained several lines of evidence showing that regulatory T cells were involved in the disease-preventive effect induced by ES-DC expressing TRAIL.Generation of ES-DC form primate ES cellsFor future clinical applications of this technology, it is necessary to develop a method to generate DC from human ES cells. Before we use human ES cells, we established a method to generate ES-DC from a cynomolgus monkey ES cell line, which is similar in many aspects to human ES cells.
All 2006 2005 2004
All Journal Article (46 results) Patent(Industrial Property Rights) (2 results)
Cancer Research 66
Pages: 2414-2422
J. Immunol. 174
Pages: 1888-1897
Biochem. Biophys. Res. Comm. 335
Pages: 5-13
Cancer Science 96
Pages: 695-705
Pages: 889-896
Blood 106
Pages: 1415-1418
臨床免疫 43(5)
Pages: 603-607
分子リウマチ 2(1)
Pages: 47-54
臨床免疫学(上) 63(4)
Pages: 621-631
J.Immunol. 174
Biochem.Biophys.Res.Comm. 335
10017091223
分子リウマチ 2・1
Clin. Cancer Res 10
Pages: 8630-8640
Pages: 6612-6621
Clin. Cancer Res. 10
Pages: 6437-6448
Pages: 6047-6057
Biochem. Biophys. Res. Comm. 321
Pages: 432-440
臨床免疫 42(1)
Pages: 110-114
80016807917
感染、炎症、免疫-連載 : ビジュアルデビュー 34(2)
Pages: 32-39
Mebio 21(10)
Pages: 33-41
Clin.Cancer Res 10
Clin.Cancer Res. 10
Biochem.Biophys.Res.Comm. 321
J.Immunol. 172
Pages: 776-786
感染、炎症、免疫-連載:ビジュアルデビュー 34・2
臨床免疫 42・1
Mebio 21・10