文章基本信息

标题：On the mechanism of long-range orientational order of fibroblasts
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作者：Xuefei Li ; Rajesh Balagam ; Ting-Fang He 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2017
卷号：114
期号：34
页码：8974-8979
DOI：10.1073/pnas.1707210114
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Long-range alignment ordering of fibroblasts have been observed in the vicinity of cancerous tumors and can be recapitulated with in vitro experiments. However, the mechanisms driving their ordering are not understood. Here, we show that local collision-driven nematic alignment interactions among fibroblasts are insufficient to explain observed long-range alignment. One possibility is that there exists another orientation field coevolving with the cells and reinforcing their alignment. We propose that this field reflects the mechanical cross-talk between the fibroblasts and the underlying fibrous material on which they move. We show that this long-range interaction can give rise to high nematic order and to the observed patterning of the cancer microenvironment.
关键词：alignment ; fibroblasts ; long-range order ; extracellular matrix ; collagen fibers