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Kindlin-2 controls bidirectional signaling of integrins.

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Control of integrin activation is required for cell adhesion and ligand-induced signaling. Here we report that loss of the focal adhesion protein Kindlin-2 in mice results in peri-implantation lethality caused by severe detachment of the endoderm and epiblast from the basement membrane. We found that Kindlin-2-deficient cells were unable to activate their integrins and that Kindlin-2 is required for talin-induced integrin activation. Furthermore, we demonstrate that Kindlin-2 is required for integrin outside-in signaling to enable firm adhesion and spreading. Our findings provide evidence that Kindlin-2 is a novel and essential element of bidirectional integrin signaling.

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MONTAÑEZ, Eloi, et al. Kindlin-2 controls bidirectional signaling of integrins. Genes & Development. 2008. Vol. 22, num. 10, pags. 1325-1330. ISSN 0890-9369. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/159963

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