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@ARTICLE{Sadoun:168184,
author = {A. Sadoun and M. Biarnes-Pelicot and L.
Ghesquiere-Dierickx$^*$ and A. Wu and O. Théodoly and L.
Limozin and Y. Hamon and P.-H. Puech},
title = {{C}ontrolling {T} cells spreading, mechanics and activation
by micropatterning.},
journal = {Scientific reports},
volume = {11},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {DKFZ-2021-00724},
pages = {6783},
year = {2021},
abstract = {We designed a strategy, based on a careful examination of
the activation capabilities of proteins and antibodies used
as substrates for adhering T cells, coupled to protein
microstamping to control at the same time the position,
shape, spreading, mechanics and activation state of T cells.
Once adhered on patterns, we examined the capacities of T
cells to be activated with soluble anti CD3, in comparison
to T cells adhered to a continuously decorated substrate
with the same density of ligands. We show that, in our hand,
adhering onto an anti CD45 antibody decorated surface was
not affecting T cell calcium fluxes, even adhered on
variable size micro-patterns. Aside, we analyzed the T cell
mechanics, when spread on pattern or not, using Atomic Force
Microscopy indentation. By expressing MEGF10 as a non immune
adhesion receptor in T cells we measured the very same
spreading area on PLL substrates and Young modulus than non
modified cells, immobilized on anti CD45 antibodies, while
retaining similar activation capabilities using soluble anti
CD3 antibodies or through model APC contacts. We propose
that our system is a way to test activation or anergy of T
cells with defined adhesion and mechanical characteristics,
and may allow to dissect fine details of these mechanisms
since it allows to observe homogenized populations in
standardized T cell activation assays.},
cin = {E040},
ddc = {600},
cid = {I:(DE-He78)E040-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33762632},
pmc = {pmc:PMC7991639},
doi = {10.1038/s41598-021-86133-1},
url = {https://inrepo02.dkfz.de/record/168184},
}