αvβ3 integrin expression increases elasticity in human melanoma cells

Lacaria L, Lange J, Goldmann W, Rico F, Alonso JL (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Biochemical and Biophysical Research Communications Elsevier

DOI: 10.1016/j.bbrc.2020.02.156

Abstract

Living cells interact with the extracellular matrix (ECM) transducing biochemical signals into mechanical cues and vice versa. Thanks to this mechano-transduction process, cells modify their internal organization and upregulate their physiological functions differently. In this complex mechanism integrins play a fundamental role, connecting the extracellular matrix with the cytoskeleton. Cytoskeletal rearrangements, such as the increase of the overall contractility, impact cell mechanical properties, the entire cell stiffness, and cell deformability. How cell mechanics is influenced via different integrins and their interaction with ECM in health and disease is still unclear. Here, we investigated the influence of αvβ3 integrin expression on the mechanics of human melanoma M21 cells using atomic force microscopy and micro-constriction. Evidence is provided that (i) αvβ3 integrin expression in human melanoma cells increases cell stiffness in both adherent and non-adherent conditions; (ii) replacing αvβ3 with αIIbβ3 integrin in melanoma cells, cell stiffness is increased under adherent, while decreased under non-adherent conditions; (iii) αvβ3 integrin cell stiffening is also maintained when cells adhere to fibronectin, but this phenomenon does not strongly depend on the fibronectin concentration. In all, this study sheds light on the role of αvβ3 in regulating cellular mechanics.

Authors with CRIS profile

Janina Lange Lehrstuhl für Biophysik Wolfgang Goldmann Lehrstuhl für Biophysik

Involved external institutions

Aix-Marseille University / Aix-Marseille Université FR France (FR) Massachusetts General Hospital US United States (USA) (US)

How to cite

APA:

Lacaria, L., Lange, J., Goldmann, W., Rico, F., & Alonso, J.L. (2020). αvβ3 integrin expression increases elasticity in human melanoma cells. Biochemical and Biophysical Research Communications. https://dx.doi.org/10.1016/j.bbrc.2020.02.156

MLA:

Lacaria, Leda, et al. "αvβ3 integrin expression increases elasticity in human melanoma cells." Biochemical and Biophysical Research Communications (2020).

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