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Elife
2017 ; 6
(?): ? Nephropedia Template TP
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Different TCR-induced T lymphocyte responses are potentiated by stiffness with
variable sensitivity
#MMPMID28594327
Saitakis M
; Dogniaux S
; Goudot C
; Bufi N
; Asnacios S
; Maurin M
; Randriamampita C
; Asnacios A
; Hivroz C
Elife
2017[Jun]; 6
(?): ? PMID28594327
show ga
T cells are mechanosensitive but the effect of stiffness on their functions is
still debated. We characterize herein how human primary CD4(+) T cell functions
are affected by stiffness within the physiological Young's modulus range of 0.5
kPa to 100 kPa. Stiffness modulates T lymphocyte migration and morphological
changes induced by TCR/CD3 triggering. Stiffness also increases TCR-induced
immune system, metabolism and cell-cycle-related genes. Yet, upon TCR/CD3
stimulation, while cytokine production increases within a wide range of
stiffness, from hundreds of Pa to hundreds of kPa, T cell metabolic properties
and cell cycle progression are only increased by the highest stiffness tested
(100 kPa). Finally, mechanical properties of adherent antigen-presenting cells
modulate cytokine production by T cells. Together, these results reveal that T
cells discriminate between the wide range of stiffness values found in the body
and adapt their responses accordingly.