FasL microgels induce immune acceptance of islet allografts in nonhuman primates.
FasL microgels induce immune acceptance of islet allografts in nonhuman primates.
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DOI:
10.1126/sciadv.abm9881
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发表时间:
2022-05-13
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
--
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Islet transplantation to treat insulin-dependent diabetes is greatly limited by the need for maintenance immunosuppression. We report a strategy through which cotransplantation of allogeneic islets and streptavidin (SA)–FasL–presenting microgels to the omentum under transient rapamycin monotherapy resulted in robust glycemic control, sustained C-peptide levels, and graft survival in diabetic nonhuman primates for >6 months. Surgical extraction of the graft resulted in prompt hyperglycemia. In contrast, animals receiving microgels without SA-FasL under the same rapamycin regimen rejected islet grafts acutely. Graft survival was associated with increased number of FoxP3+ cells in the graft site with no significant changes in T cell systemic frequencies or responses to donor and third-party antigens, indicating localized tolerance. Recipients of SA-FasL microgels exhibited normal liver and kidney metabolic function, demonstrating safety. This localized immunomodulatory strategy succeeded with unmodified islets and does not require long-term immunosuppression, showing translational potential in β cell replacement for treating type 1 diabetes. Transplantation of allo-islets and FasL microgels results in glycemic control in diabetic primates without immunosuppression.
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影响因子:
17.1
作者:
Leventhal J;Abecassis M;Miller J;Gallon L;Ravindra K;Tollerud DJ;King B;Elliott MJ;Herzig G;Herzig R;Ildstad ST
通讯作者:
Ildstad ST
DOI:
10.1084/jem.20110767
发表时间:
2011-09-26
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Kendal AR;Chen Y;Regateiro FS;Ma J;Adams E;Cobbold SP;Hori S;Waldmann H
通讯作者:
Waldmann H
影响因子:
15.3
作者:
Lee, I;Wang, LQ;Wells, AD;Dorf, ME;Ozkaynak, E;Hancock, WW
通讯作者:
Hancock, WW
影响因子:
56.9
作者:
Hahne, M;Rimoldi, D;Tschopp, J
通讯作者:
Tschopp, J
影响因子:
8.4
作者:
Choo, S. P.;Chowbay, B.;Toh, H. C.
通讯作者:
Toh, H. C.