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G-CSF-treated donor CD4(+) T cells attenuate acute GVHD through a reduction in Th17 cell differentiation.
MedLine Citation:
PMID:  22819244     Owner:  NLM     Status:  Publisher    
The immunoregulatory effects of granulocyte colony-stimulating factor (G-CSF) on allogeneic peripheral blood cell transplantation (PBCT) have been demonstrated to reduce acute graft-versus-host disease (GVHD). However, the underlying mechanism is still not clear. In this study, we focused on the direct effects of G-CSF on donor CD4(+) T cell responses after transplantation. We observed that lethally irradiated B6D2F1 recipient mice that are transplanted with CD4(+) T cells from G-CSF-treated B6 donors showed mild attenuations in severity and mortality compared with recipients transplanted with PBS-treated CD4(+) T cells. Notably, skin GVHD was significantly reduced, but no such reduction was observed in other organs. Although there was no difference with respect to alloreactive expansion or Foxp3(+) Treg induction, the use of G-CSF-treated CD4(+) T cells significantly reduced the numbers of IL-17-producing and RORγt-expressing cells in the secondary lymphoid organs of allogeneic recipients after transplantation compared with the use of the control cells. Finally, we found that the suppressor of cytokine signaling-3 (SOCS3) expression in G-CSF-treated donor CD4(+) T cells was much higher than that in control CD4(+) T cells. Our results demonstrate that the inhibition of Th17 cell differentiation by SOCS3 induction is associated with the immunoregulatory role of G-CSF in CD4(+) T cell-mediated acute GVHD.
Young-Don Joo; Won-Sik Lee; Hae-Jeong Won; Soung-Min Lee; Hye Ran Kim; Ji Kyoung Park; Sae-Gwang Park; Il-Whan Choi; Inhak Choi; Su-Kil Seo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-20
Journal Detail:
Title:  Cytokine     Volume:  -     ISSN:  1096-0023     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9005353     Medline TA:  Cytokine     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Department of Hemato-Oncology, Haeundae Paik Hospital, Inje University, Busan 612-030, Republic of Korea.
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