Performance-enhanced mesenchymal stem cells via intracellular delivery of steroids.

Performance-enhanced mesenchymal stem cells via intracellular delivery of steroids.
复制标题

DOI:
10.1038/srep04645
复制
发表时间:
2014-04-10
期刊:
影响因子:
4.6
通讯作者:
Karp JM
Karp JM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ankrum JA;Dastidar RG;Ong JF;Levy O;Karp JM

文献摘要

参考文献

被引文献

相似文献

间充质干细胞(MSC)的免疫调节能力不足可能会限制其治疗效果。我们报告糖皮质激素类固醇增加MSC的表达和活性的吲哚胺-2,3-双加氧酶(IDO),MSC免疫调节功能的主要介质。这种作用依赖于通过糖皮质激素受体的信号传导,并通过FOXO 3的上调介导。用糖皮质激素、布地奈德或地塞米松处理MSC增强了多个供体中IFN-γ刺激后的IDO表达,并且能够恢复过度传代的MSC中的IDO表达。由于当细胞连续暴露于布地奈德时IDO增强最显著,我们用负载布地奈德的PLGA微粒工程化MSC。MSC有效地内化布地奈德微粒,并表现出比布地奈德预处理和幼稚MSC增强4倍的IDO活性,导致以IDO依赖性方式抑制刺激的外周血单核细胞的效果提高2倍。因此,MSC免疫调节的增强可以消除与效力不足相关的挑战并增强其治疗功效。
Inadequate immunomodulatory potency of mesenchymal stem cells (MSC) may limit their therapeutic efficacy. We report glucocorticoid steroids augment MSC expression and activity of indoleamine-2,3-dioxygenase (IDO), a primary mediator of MSC immunomodulatory function. This effect depends on signaling through the glucocorticoid receptor and is mediated through up-regulation of FOXO3. Treatment of MSCs with glucocorticoids, budesonide or dexamethasone, enhanced IDO expression following IFN-γ stimulation in multiple donors and was able to restore IDO expression in over-passaged MSCs. As IDO enhancement was most notable when cells were continuously exposed to budesonide, we engineered MSC with budesonide loaded PLGA microparticles. MSC efficiently internalized budesonide microparticles and exhibited 4-fold enhanced IDO activity compared to budesonide preconditioned and naïve MSC, resulting in a 2-fold improvement in suppression of stimulated peripheral blood mononuclear cells in an IDO-dependent manner. Thus, the augmentation of MSC immune modulation may abrogate challenges associated with inadequate potency and enhance their therapeutic efficacy.
DOI: 10.4049/jimmunol.1001359
发表时间: 2011-02-01
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Morrow AN;Schmeisser H;Tsuno T;Zoon KC
通讯作者: Zoon KC
DOI: 10.1002/jcb.10766
发表时间: 2004-03-01
影响因子: 4
作者:
Hammer, S;Sauer, B;Schäfer-Korting, M
通讯作者: Schäfer-Korting, M
DOI: 10.1016/j.molmed.2010.02.005
发表时间: 2010-05
影响因子: 13.6
作者:
Ankrum J;Karp JM
通讯作者: Karp JM
DOI: 10.1016/j.it.2012.10.001
发表时间: 2013-03
影响因子: 16.8
作者:
Munn DH;Mellor AL
通讯作者: Mellor AL
DOI: 10.1038/nprot.2014.002
发表时间: 2014-02
期刊: Nature protocols
影响因子: 14.8
作者:
通讯作者: --