Clustering and jamming in epithelial-mesenchymal co-cultures.

Clustering and jamming in epithelial-mesenchymal co-cultures.
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DOI:
10.1039/c6sm01287f
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发表时间:
2016-10-12
期刊:
影响因子:
3.4
通讯作者:
Wong IY
Wong IY
中科院分区:
化学2区
文献类型:
--
作者:
Gamboa Castro M;Leggett SE;Wong IY

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Collective behaviors emerge from coordinated cell-cell interactions during the morphogenesis of tissues and tumors. For instance, cells may display density-dependent phase transitions from a fluid-like “unjammed” phase to a solid-like “jammed” phase, while different cell types can “self-sort.” Here, we comprehensively track single cell dynamics in mixtures of sheet-forming epithelial cells and dispersed mesenchymal cells. We find that proliferating epithelial cells nucleate multicellular clusters that coarsen at a critical density, arresting migration and strengthening spatial velocity correlations. The addition of mesenchymal cells can slow cluster formation and coarsening, resulting in more dispersed individual cells with weak spatial velocity correlations. These behaviors have analogies with a jamming-unjamming transition, where the control parameters are cell density and mesenchymal fraction. This complex interplay of proliferation, clustering and correlated migration may have physical implications for understanding epithelial-mesenchymal interactions in development and disease.
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