TY - JOUR
T1 - The association of CD25 expression on donor CD8+ and CD4 + T cells with graft-versus-host disease after donor lymphocyte infusions
AU - Mutis, Tuna
AU - Aarts-Riemens, Tineke
AU - Verdonck, Leo F.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - Background and Objectives. Graft-versus-host disease (GvHD) remains a major complication of allogeneic stem cell transplantation (SCT) and donor lymphocyte infusions (DLI). CD25-expressing donor T cells may be involved in the prevention or induction of GvHD as these cells comprise both CD4 +CD25+ regulatory T (Treg) cells and preactivated CD4 + or CD8+ conventional T cells. Therefore, we evaluated the relationship between CD25-expressing CD4+ and CD8+ donor T cells and the clinical outcome of DLI. Design and Methods. We retrospectively studied the DLI products of 47 HLA-identical DLI recipients by FACS analyses. As Treg cells are often identified within the CD4 +CD25hiCD45RBlow subset, we determined the frequencies of CD4+ and CD8+ T cells with different expression levels of CD25 and CD45RB. Results. The frequencies or infused doses of donor CD4+CD25+ T cells, regardless of their CD25 and CD45RB expression levels, showed no correlation with the clinical outcome in univariate and multivariate analyses. In contrast, elevated frequencies of donor CD8+CD25+ T cells showed significant correlations with grade II-IV acute GvHD. Patients with GvHD also appeared to have received higher doses of CD8+CD25+ cells. Increased frequencies of CD8+CD25+ cells in the DLI products and the infused-doses of these cells also correlated with complete remissions accompanying GvHD. However, there was no correlation between increased levels of CD8 +CD25+ cells with complete remissions achieved in the absence of a clinically apparent acute GvHD. Interpretations and Conclusions. Donor CD8+CD25+ T cells appear to represent a risk factor for GvHD in the DLI setting. Selective depletion of these cells from DLI products may attenuate GvHD without significantly compromising anti-tumor efficacy.
AB - Background and Objectives. Graft-versus-host disease (GvHD) remains a major complication of allogeneic stem cell transplantation (SCT) and donor lymphocyte infusions (DLI). CD25-expressing donor T cells may be involved in the prevention or induction of GvHD as these cells comprise both CD4 +CD25+ regulatory T (Treg) cells and preactivated CD4 + or CD8+ conventional T cells. Therefore, we evaluated the relationship between CD25-expressing CD4+ and CD8+ donor T cells and the clinical outcome of DLI. Design and Methods. We retrospectively studied the DLI products of 47 HLA-identical DLI recipients by FACS analyses. As Treg cells are often identified within the CD4 +CD25hiCD45RBlow subset, we determined the frequencies of CD4+ and CD8+ T cells with different expression levels of CD25 and CD45RB. Results. The frequencies or infused doses of donor CD4+CD25+ T cells, regardless of their CD25 and CD45RB expression levels, showed no correlation with the clinical outcome in univariate and multivariate analyses. In contrast, elevated frequencies of donor CD8+CD25+ T cells showed significant correlations with grade II-IV acute GvHD. Patients with GvHD also appeared to have received higher doses of CD8+CD25+ cells. Increased frequencies of CD8+CD25+ cells in the DLI products and the infused-doses of these cells also correlated with complete remissions accompanying GvHD. However, there was no correlation between increased levels of CD8 +CD25+ cells with complete remissions achieved in the absence of a clinically apparent acute GvHD. Interpretations and Conclusions. Donor CD8+CD25+ T cells appear to represent a risk factor for GvHD in the DLI setting. Selective depletion of these cells from DLI products may attenuate GvHD without significantly compromising anti-tumor efficacy.
KW - Donor CD4CD25 T cells
KW - Donor CD8 CD25 T cells
KW - Donor lymphocyte infusions
KW - Graft-versus-host disease
UR - http://www.scopus.com/inward/record.url?scp=27144441712&partnerID=8YFLogxK
M3 - Article
C2 - 16219576
AN - SCOPUS:27144441712
VL - 90
SP - 1389
EP - 1395
JO - Haematologica
JF - Haematologica
SN - 0390-6078
IS - 10
ER -