期刊
NANO LETTERS
卷 13, 期 11, 页码 5619-5626出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl403266t
关键词
Nanopattern; nanostructures; T cell activation; immunological synapse; artificial antigen-presenting cell; TCR microclusters
类别
资金
- Erwin Schrodinger Fellowship Program of the Austrian Science Fund (FWF) [J3086-B11]
- European Union [NMP4-LA-2009-229289]
- Max Planck Society
- Wellcome Trust
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 mu m(2). 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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