T cell activation is determined by the number of presented antigens.
T cell activation is determined by the number of presented antigens.
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DOI:
10.1021/nl403266t
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发表时间:
2013
期刊:
影响因子:
10.8
通讯作者:
Spatz JP
中科院分区:
文献类型:
--
作者:
Deeg J;Axmann M;Matic J;Liapis A;Depoil D;Afrose J;Curado S;Dustin ML;Spatz JP
Antigen recognition is a key event during T cell activation. Here, we introduce nanopatterned antigen arrays that mimic the antigen presenting cell surface during T cell activation. The assessment of activation related events revealed the requirement of a minimal density of 90–140 stimulating major histocompatibility complex class II proteins (pMHC) molecules per μm2. We demonstrate that these substrates induce T cell responses in a pMHC dose-dependent manner and that the number of presented pMHCs dominates over local pMHC density.
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