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
影响因子:
4.6
通讯作者:
Karp JM
中科院分区:
文献类型:
--
作者:
Ankrum JA;Dastidar RG;Ong JF;Levy O;Karp JM
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.
登录
查看更多内容
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
影响因子:
4
作者:
Hammer, S;Sauer, B;Schäfer-Korting, M
通讯作者:
Schäfer-Korting, M
影响因子:
13.6
作者:
Ankrum J;Karp JM
通讯作者:
Karp JM
影响因子:
16.8
作者:
Munn DH;Mellor AL
通讯作者:
Mellor AL
影响因子:
14.8
作者:
通讯作者:
--