Preproinsulin Designer Antigens Excluded from Endoplasmic Reticulum Suppressed Diabetes Development in NOD Mice by DNA Vaccination
Preproinsulin Designer Antigens Excluded from Endoplasmic Reticulum Suppressed Diabetes Development in NOD Mice by DNA Vaccination
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通过 DNA 疫苗接种从内质网中排除的前胰岛素原设计抗原抑制了 NOD 小鼠的糖尿病发展
DOI:
10.1016/j.omtm.2018.12.002
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Schirmbeck
中科院分区:
文献类型:
--
作者:
Stifter;Schuster;Krieger;Spyrantis;Schirmbeck
DNA vaccines against autoimmune type 1 diabetes (T1D) contain a nonpredictable risk to induce autoreactive T cell responses rather than a protective immunity. Little is known if (and how) antigen expression and processing requirements favor the induction of autoreactive or protective immune responses by DNA immunization. Here, we analyzed whether structural properties of preproinsulin (ppins) variants and/or subcellular targeting of ppins designer antigens influence the priming of effector CD8+T cell responses by DNA immunization. Primarily, we used H-2bRIP-B7.1 tg mice, expressing the co-stimulator molecule B7.1 in beta cells, to identify antigens that induce or fail to induce autoreactive ppins-specific (Kb/A12-21and/or Kb/B22-29) CD8+T cell responses. Female NOD mice, expressing the diabetes-susceptible H-2g7haplotype, were used to test ppins variants for their potential to suppress spontaneous diabetes development. We showed that ppins antigens excluded from expression in the endoplasmic reticulum (ER) did not induce CD8+T cells or autoimmune diabetes in RIP-B7.1 tg mice, but efficiently suppressed spontaneous diabetes development in NOD mice as well as ppins-induced CD8+T cell-mediated autoimmune diabetes inPD-L1−/−mice. The induction of a ppins-specific therapeutic immunity in mice has practical implications for the design of immune therapies against T1D in individuals expressing different major histocompatibility complex (MHC) I and II molecules.
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影响因子:
32.4
作者:
Dong, HD;Zhu, GF;Chen, LP
通讯作者:
Chen, LP
影响因子:
4.6
作者:
Verhagen J;Smith EL;Whettlock EM;Macintyre B;Peakman M
通讯作者:
Peakman M
影响因子:
4.6
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Stifter K;Schuster C;Schlosser M;Boehm BO;Schirmbeck R
通讯作者:
Schirmbeck R
影响因子:
64.8
作者:
Nakayama, M;Abiru, N;Eisenbarth, GS
通讯作者:
Eisenbarth, GS
影响因子:
4.4
作者:
Hsu, Hsiang-Ting;Janssen, Linda;van Endert, Peter
通讯作者:
van Endert, Peter