Dexamethasone palmitate ameliorates macrophages-rich graft-versus-host disease by inhibiting macrophage functions.

Dexamethasone palmitate ameliorates macrophages-rich graft-versus-host disease by inhibiting macrophage functions.
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DOI:
10.1371/journal.pone.0096252
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Naoe T
Naoe T
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Nishiwaki S;Nakayama T;Murata M;Nishida T;Terakura S;Saito S;Kato T;Mizuno H;Imahashi N;Seto A;Ozawa Y;Miyamura K;Ito M;Takeshita K;Kato H;Toyokuni S;Nagao K;Ueda R;Naoe T

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Macrophage infiltration of skin GVHD lesions correlates directly with disease severity, but the mechanisms underlying this relationship remain unclear and GVHD with many macrophages is a therapeutic challenge. Here, we characterize the macrophages involved in GVHD and report that dexamethasone palmitate (DP), a liposteroid, can ameliorate such GVHD by inhibiting macrophage functions. We found that host-derived macrophages could exacerbate GVHD in a mouse model through expression of higher levels of pro-inflammatory TNF-α and IFN-γ, and lower levels of anti-inflammatory IL-10 than resident macrophages in mice without GVHD. DP significantly decreased the viability and migration capacity of primary mouse macrophages compared to conventional dexamethasone in vitro. DP treatment on day 7 and day 14 decreased macrophage number, and attenuated GVHD score and subsequent mortality in a murine model. This is the first study to provide evidence that therapy for GVHD should be changed on the basis of infiltrating cell type.
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