title: Genetically manipulated human embryonic stem cell-derived dendritic cells with immune regulatory function.
abstract: Genetically manipulated dendritic cells (DC) are considered to be a promising means for antigen-specific immune therapy. This study reports the generation, characterization, and genetic modification of DC derived from human embryonic stem (ES) cells. The human ES cell-derived DC (ES-DC) expressed surface molecules typically expressed by DC and had the capacities to stimulate allogeneic T lymphocytes and to process and present protein antigen in the context of histocompatibility leukocyte antigen (HLA) class II molecule. Genetic modification of human ES-DC can be accomplished without the use of viral vectors, by the introduction of expression vector plasmids into undifferentiated ES cells by electroporation and subsequent induction of differentiation of the transfectant ES cell clones to ES-DC. ES-DC introduced with invariant chain-based antigen-presenting vectors by this procedure stimulated HLA-DR-restricted antigen-specific T cells in the absence of exogenous antigen. Forced expression of programmed death-1-ligand-1 in ES-DC resulted in the reduction of the proliferative response of allogeneic T cells cocultured with the ES-DC. Generation and genetic modification of ES-DC from nonhuman primate (cynomolgus monkey) ES cells was also achieved by the currently established method. ES-DC technology is therefore considered to be a novel means for immune therapy.
authors: Department of Immunogenetics, Graduate School of Medical and Pharmaceutical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan. senjusat@gpo.kumamoto-u.ac.jp
authors: Satoru
authors: S
authors: Senju
authors: Hirofumi
authors: H
authors: Suemori
authors: Hitoshi
authors: H
authors: Zembutsu
authors: Yasushi
authors: Y
authors: Uemura
authors: Shinya
authors: S
authors: Hirata
authors: Daiki
authors: D
authors: Fukuma
authors: Hidetake
authors: H
authors: Matsuyoshi
authors: Manami
authors: M
authors: Shimomura
authors: Miwa
authors: M
authors: Haruta
authors: Satoshi
authors: S
authors: Fukushima
authors: Yusuke
authors: Y
authors: Matsunaga
authors: Toyomasa
authors: T
authors: Katagiri
authors: Yusuke
authors: Y
authors: Nakamura
authors: Masataka
authors: M
authors: Furuya
authors: Norio
authors: N
authors: Nakatsuji
authors: Yasuharu
authors: Y
authors: Nishimura
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000235:genetics* / Q000276:immunology; D002460:Cell Line; D018920:Coculture Techniques; D003713:Dendritic Cells / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D053595:Embryonic Stem Cells / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D005822:Genetic Vectors / Q000276:immunology / Q000378:metabolism; D006801:Humans; D008252:Macaca fascicularis; D051379:Mice; D014162:Transfection / Q000379:methods