Regulatory dendritic cells protect against cutaneous chronic graft-versus-host disease mediated through CD4+CD25+Foxp3+ regulatory T cells.
Chronic graft-versus-host disease (cGVHD) is a common cause of morbidity and mortality in allogeneic bone marrow transplantation (alloBMT). However, effective strategies for the treatment of cGVHD have not been established. In this study, we examined the therapeutic utility of modified dendritic cells (DCs) with a greater capacity to regulate immune responses than previously known tolerogenic DCs, regulatory DCs (DC(regs)), in the major histocompatibility complex-compatible, and multiple minor histocompatibility antigen-incompatible model of cGVHD in alloBMT. Treatment of the recipient mice after alloBMT with the recipient-type DC(regs) led to greater suppression of the incidence and severity of cutaneous cGVHD than rapamycin, whereas treatment with the recipient-type mature DCs promoted the pathogenesis. Analysis of the recipient mice suggested that the protective effect of the recipient-type DC(regs) involved the peripheral generation of alloreactive CD4(+)CD25(+)Foxp3(+)regulatory T (T(R)) cells from donor-derived CD4(+)CD25(-)Foxp3(-) T cells. Thus, immunotherapy with DC(regs) is a promising strategy for the treatment of cGVHD in alloBMT mediated through the induction of a dominant tolerance involving CD4(+)CD25(+)Foxp3(+) T(R) cells.
LaboratorY for Dendritic Cell Immunobiology, Rikagaku Kenkyusho (RIKEN) Research Center for Allergy and Immunology, Yokohama, Japan.
Shigeharu
S
Fujita
Yumiko
Y
Sato
Kaori
K
Sato
Kawori
K
Eizumi
Tomohiro
T
Fukaya
Masato
M
Kubo
Naohide
N
Yamashita
Katsuaki
K
Sato
D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000378:metabolism / Q000502:physiology*; D002478:Cells, Cultured; D002908:Chronic Disease; D003713:Dendritic Cells / Q000502:physiology* / Q000637:transplantation; D051858:Forkhead Transcription Factors / Q000378:metabolism; D006086:Graft vs Host Disease / Q000276:immunology* / Q000517:prevention & control*; D016219:Immunotherapy, Adoptive; D053645:Interleukin-2 Receptor alpha Subunit / Q000378:metabolism; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D008822:Mice, Transgenic; D012871:Skin Diseases / Q000276:immunology / Q000517:prevention & control*; D050378:T-Lymphocytes, Regulatory / Q000378:metabolism / Q000502:physiology*
D051858:Forkhead Transcription Factors; C498833:Foxp3 protein, mouse; D053645:Interleukin-2 Receptor alpha Subunit