Dense monolayers of living cells display intriguing relaxation dynamics, reminiscent of soft and glassy materials close to the jamming transition, and migrate collectively when space is available, as in wound healing or in cancer invasion. Here we show that collective cell migration occurs in bursts that are similar to those recorded in the propagation of cracks, fluid fronts in porous media, and ferromagnetic domain walls. In analogy with these systems, the distribution of activity bursts displays scaling laws that are universal in different cell types and for cells moving on different substrates. The main features of the invasion dynamics are quantitatively captured by a model of interacting active particles moving in a disordered landscape. Our results illustrate that collective motion of living cells is analogous to the corresponding dynamics in driven, but inanimate, systems.
Bursts of activity in collective cell migration / O. Chepizhko, C. Giampietro, E. Mastrapasqua, M. Nourazar, M. Ascagni, M. Sugni, U. Fascio, L. Leggio, C. Malinverno, G. Scita, S. Santucci, M.J. Alava, S. Zapperi, C. La Porta. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - 113:41(2016 Sep 27), pp. 201600503.11408-201600503.11413.
Titolo: | Bursts of activity in collective cell migration |
Autori: | GIAMPIETRO, COSTANZA (Secondo) ZAPPERI, STEFANO (Penultimo) |
Parole Chiave: | avalanches; collagen substrate; collective cell migration; universality; vascular endothelial cadherin |
Settore Scientifico Disciplinare: | Settore MED/04 - Patologia Generale Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici |
Data di pubblicazione: | 27-set-2016 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1073/pnas.1600503113 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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