Weekly injection of IL-2 using an injectable hydrogel reduces autoimmune diabetes incidence in NOD mice.
Weekly injection of IL-2 using an injectable hydrogel reduces autoimmune diabetes incidence in NOD mice.
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DOI:
10.1007/s00125-020-05314-1
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发表时间:
2021-01
期刊:
影响因子:
8.2
通讯作者:
Bollyky PL
中科院分区:
文献类型:
--
作者:
Nagy N;Kaber G;Kratochvil MJ;Kuipers HF;Ruppert SM;Yadava K;Yang J;Heilshorn SC;Long SA;Pugliese A;Bollyky PL
IL-2 injections are a promising therapy for autoimmune type 1 diabetes but the short half-life of this cytokine in vivo limits effective tissue exposure and necessitates frequent injections. Here we have investigated whether an injectable hydrogel could be used to promote prolonged IL-2 release in vivo. Capitalising on the IL-2-binding capabilities of heparin, an injectable hydrogel incorporating clinical-grade heparin, collagen and hyaluronan polymers was used to deliver IL-2. The IL-2-release kinetics and in vivo stability of this material were examined. The ability of soluble IL-2 vs hydrogel-mediated IL-2 injections to prevent autoimmune diabetes in the NOD mouse model of type 1 diabetes were compared. We observed in vitro that the hydrogel released IL-2 over a 12-day time frame and that injected hydrogel likewise persisted 12 days in vivo. Notably, heparin binding potentiates the activity of IL-2 and enhances IL-2- and TGFβ-mediated expansion of forkhead box P3-positive regulatory T cells (FOXP3+ Tregs). Finally, weekly administration of IL-2-containing hydrogel partially prevented autoimmune diabetes while injections of soluble IL-2 did not. Hydrogel delivery may reduce the number of injections required in IL-2 treatment protocols for autoimmune diabetes.
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影响因子:
5.4
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RAMSDEN, L;RIDER, CC
通讯作者:
RIDER, CC
影响因子:
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Tang, Qizhi;Adams, Jason Y.;Bluestone, Jeffrey A.
通讯作者:
Bluestone, Jeffrey A.
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Ruppert SM;Falk BA;Long SA;Bollyky PL
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Bollyky PL
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Najjam, S;Mulloy, B;Rider, CC
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Rider, CC