Therapeutic effect of CXCR3-expressing regulatory T cells on liver, lung and intestinal damages in a murine acute GVHD model
Adoptive transfer of CD4 + CD25 + regulatory T cells has been shown to have therapeutic effects in experimental graft-vs-host disease (GVHD) models. Chemokines play an important role in the recruitment of alloreactive donor T cells into target organs during GVHD. In this study, we investigated the e...
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Veröffentlicht in: | Gene therapy 2008-02, Vol.15 (3), p.171-182 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Adoptive transfer of CD4
+
CD25
+
regulatory T cells has been shown to have therapeutic effects in experimental graft-vs-host disease (GVHD) models. Chemokines play an important role in the recruitment of alloreactive donor T cells into target organs during GVHD. In this study, we investigated the effectiveness of targeted delivery of CD4
+
CD25
+
regulatory T cells via a transfected chemokine receptor on reduction of organ damage during acute GVHD. High levels of expression of Th1-associated chemokines (CXCL9, CXCL10 and CXCL11) and their receptor CXCR3 were observed in the liver, lung and intestine of GVHD-induced recipient mice. Recipient mice that had undergone transfer of CD4
+
CD25
+
Foxp3
+
CXCR3-transfected T cells (CXCR3-Treg cells) showed significant amelioration of GVHD changes in the liver, lung and intestine in comparison with recipient mice that had received CD4
+
CD25
+
Foxp3
+
T cells (Treg cells) or naturally occurring CD4
+
CD25
+
regulatory T cells. This was due to more pronounced migration of CXCR3-Treg cells and their localization for a longer time in Th1-associated chemokine-expressing organs, resulting in stronger suppressive activity. We succeeded in preparing chemokine receptor-expressing Treg cells and demonstrated their ability to ameliorate disease progression upon accumulation in target organs. This method may provide a new therapeutic approach for organ damage in acute GVHD. |
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ISSN: | 0969-7128 1476-5462 |
DOI: | 10.1038/sj.gt.3303051 |