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Inside the Cell: Integrins as New Governors of Nuclear Alterations?

1
Section of Immuno-oncology, Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain
2
Department of Immunology, Hospital 12 de Octubre Health Research Institute (imas12), Complutense University School of Medicine, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Helen M. Sheldrake
Cancers 2017, 9(7), 82; https://doi.org/10.3390/cancers9070082
Received: 16 May 2017 / Revised: 26 June 2017 / Accepted: 4 July 2017 / Published: 6 July 2017
(This article belongs to the Special Issue Integrins in Cancer)
Cancer cell migration is a complex process that requires coordinated structural changes and signals in multiple cellular compartments. The nucleus is the biggest and stiffest organelle of the cell and might alter its physical properties to allow cancer cell movement. Integrins are transmembrane receptors that mediate cell-cell and cell-extracellular matrix interactions, which regulate numerous intracellular signals and biological functions under physiological conditions. Moreover, integrins orchestrate changes in tumor cells and their microenvironment that lead to cancer growth, survival and invasiveness. Most of the research efforts have focused on targeting integrin-mediated adhesion and signaling. Recent exciting data suggest the crucial role of integrins in controlling internal cellular structures and nuclear alterations during cancer cell migration. Here we review the emerging role of integrins in nuclear biology. We highlight increasing evidence that integrins are critical for changes in multiple nuclear components, the positioning of the nucleus and its mechanical properties during cancer cell migration. Finally, we discuss how integrins are integral proteins linking the plasma membrane and the nucleus, and how they control cell migration to enable cancer invasion and infiltration. The functional connections between these cell receptors and the nucleus will serve to define new attractive therapeutic targets. View Full-Text
Keywords: integrins; nucleus; nuclear deformability; tumor microenvironment; ECM; chromatin; nuclear mechanics integrins; nucleus; nuclear deformability; tumor microenvironment; ECM; chromatin; nuclear mechanics
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Madrazo, E.; Conde, A.C.; Redondo-Muñoz, J. Inside the Cell: Integrins as New Governors of Nuclear Alterations? Cancers 2017, 9, 82.

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