Lack of IL-21 signal attenuates graft-versus-leukemia effect in the absence of CD8 T-cells.
Lack of IL-21 signal attenuates graft-versus-leukemia effect in the absence of CD8 T-cells.
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DOI:
10.1038/bmt.2010.342
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发表时间:
2011-12
影响因子:
4.8
通讯作者:
Ozawa K
中科院分区:
文献类型:
--
作者:
Meguro A;Ozaki K;Hatanaka K;Oh I;Sudo K;Ohmori T;Matsu H;Tatara R;Sato K;Sakata Y;Nakae S;Leonard WJ;Ozawa K
Previously, we have shown that IL-21R-/- splenocytes ameliorate graft-versus-host disease (GVHD) as compared to wild type splenocytes. Here, we investigated whether or not IL-21R-/- splenocytes diminish the graft-versus-leukemia (GVL) effect. Surprisingly, IL-21R-/- splenocytes efficiently eliminate leukemic cells as well as wild type splenocytes, suggesting the retention of GVL effects in the absence of IL-21 signaling. To compare the GVL effect between IL-21R-/- and wild type cells, we titrated the number of splenocytes required for the elimination of leukemic cells and found that the threshold of GVL effect was obtained between 5 × 105 and 5 × 106 with both types of splenocytes. Co-transplantation with CD8-depleted splenocytes but not with purified CD8 T-cells resulted in a significant reduction in anti-leukemic effect of IL-21R-/- cells compared to wild type cells, suggesting that the lack of IL-21 signaling primarily impairs CD4 T-cell rather than CD8 T-cell function and the comparable GVL effect with IL-21R-/- bulk splenocytes results from cooperative compensation by CD8 T-cells.
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影响因子:
5.8
作者:
Frederiksen, Klaus Stensgaard;Lundsgaard, Dorthe;Skak, Kresten
通讯作者:
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影响因子:
20.3
作者:
Yang, YG;Qi, J;Sykes, M
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DOI:
10.1073/pnas.0807309106
发表时间:
2009-02-03
影响因子:
11.1
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影响因子:
20.3
作者:
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通讯作者:
Blazar, Bruce R.
DOI:
10.1073/pnas.0400380101
发表时间:
2004-03-16
影响因子:
11.1
作者:
Reddy, P;Maeda, Y;Ferrara, JLM
通讯作者:
Ferrara, JLM