Adhesion to laminin-1 and collagen IV induces the formation of Ca2+ microdomains that sensitize mouse T cells for activation
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Adhesion to laminin-1 and collagen IV induces the formation of Ca2+ microdomains that sensitize mouse T cells for activation. / Weiß, Mariella; Hernandez, Lola C; Gil Montoya, Diana C; Löhndorf, Anke; Krüger, Aileen; Kopdag, Miriam; Uebler, Liana; Landwehr, Marie; Nawrocki, Mikolaj; Huber, Samuel; Woelk, Lena-Marie; Werner, René; Failla, Antonio V; Flügel, Alexander; Dupont, Geneviève; Guse, Andreas H; Diercks, Björn-Philipp.
In: SCIENCE SIGNALING, Vol. 16, No. 790, 20.06.2023, p. eabn9405.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Adhesion to laminin-1 and collagen IV induces the formation of Ca2+ microdomains that sensitize mouse T cells for activation
AU - Weiß, Mariella
AU - Hernandez, Lola C
AU - Gil Montoya, Diana C
AU - Löhndorf, Anke
AU - Krüger, Aileen
AU - Kopdag, Miriam
AU - Uebler, Liana
AU - Landwehr, Marie
AU - Nawrocki, Mikolaj
AU - Huber, Samuel
AU - Woelk, Lena-Marie
AU - Werner, René
AU - Failla, Antonio V
AU - Flügel, Alexander
AU - Dupont, Geneviève
AU - Guse, Andreas H
AU - Diercks, Björn-Philipp
PY - 2023/6/20
Y1 - 2023/6/20
N2 - During an immune response, T cells migrate from blood vessel walls into inflamed tissues by migrating across the endothelium and through extracellular matrix (ECM). Integrins facilitate T cell binding to endothelial cells and ECM proteins. Here, we report that Ca2+ microdomains observed in the absence of T cell receptor (TCR)/CD3 stimulation are initial signaling events triggered by adhesion to ECM proteins that increase the sensitivity of primary murine T cells to activation. Adhesion to the ECM proteins collagen IV and laminin-1 increased the number of Ca2+ microdomains in a manner dependent on the kinase FAK, phospholipase C (PLC), and all three inositol 1,4,5-trisphosphate receptor (IP3R) subtypes and promoted the nuclear translocation of the transcription factor NFAT-1. Mathematical modeling predicted that the formation of adhesion-dependent Ca2+ microdomains required the concerted activity of two to six IP3Rs and ORAI1 channels to achieve the increase in the Ca2+ concentration in the ER-plasma membrane junction that was observed experimentally and that required SOCE. Further, adhesion-dependent Ca2+ microdomains were important for the magnitude of the TCR-induced activation of T cells on collagen IV as assessed by the global Ca2+ response and NFAT-1 nuclear translocation. Thus, adhesion to collagen IV and laminin-1 sensitizes T cells through a mechanism involving the formation of Ca2+ microdomains, and blocking this low-level sensitization decreases T cell activation upon TCR engagement.
AB - During an immune response, T cells migrate from blood vessel walls into inflamed tissues by migrating across the endothelium and through extracellular matrix (ECM). Integrins facilitate T cell binding to endothelial cells and ECM proteins. Here, we report that Ca2+ microdomains observed in the absence of T cell receptor (TCR)/CD3 stimulation are initial signaling events triggered by adhesion to ECM proteins that increase the sensitivity of primary murine T cells to activation. Adhesion to the ECM proteins collagen IV and laminin-1 increased the number of Ca2+ microdomains in a manner dependent on the kinase FAK, phospholipase C (PLC), and all three inositol 1,4,5-trisphosphate receptor (IP3R) subtypes and promoted the nuclear translocation of the transcription factor NFAT-1. Mathematical modeling predicted that the formation of adhesion-dependent Ca2+ microdomains required the concerted activity of two to six IP3Rs and ORAI1 channels to achieve the increase in the Ca2+ concentration in the ER-plasma membrane junction that was observed experimentally and that required SOCE. Further, adhesion-dependent Ca2+ microdomains were important for the magnitude of the TCR-induced activation of T cells on collagen IV as assessed by the global Ca2+ response and NFAT-1 nuclear translocation. Thus, adhesion to collagen IV and laminin-1 sensitizes T cells through a mechanism involving the formation of Ca2+ microdomains, and blocking this low-level sensitization decreases T cell activation upon TCR engagement.
KW - Mice
KW - Animals
KW - Endothelial Cells
KW - Extracellular Matrix Proteins/metabolism
KW - T-Lymphocytes/metabolism
KW - Receptors, Antigen, T-Cell/metabolism
KW - Collagen/metabolism
U2 - 10.1126/scisignal.abn9405
DO - 10.1126/scisignal.abn9405
M3 - SCORING: Journal article
C2 - 37339181
VL - 16
SP - eabn9405
JO - SCI SIGNAL
JF - SCI SIGNAL
SN - 1945-0877
IS - 790
ER -