期刊
ANNALS OF BIOMEDICAL ENGINEERING
卷 45, 期 8, 页码 2036-2047出版社
SPRINGER
DOI: 10.1007/s10439-017-1841-5
关键词
Mechanosensing; Atomic force microscopy; Nodule; Plaque; Elastic/viscoelastic properties; Cellular assembly
资金
- National Institute of Health [R01 AR063642, P20 GM104937]
- National Science Foundation [CAREER CBET 1253189]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1253189] Funding Source: National Science Foundation
Understanding the role of mechanophenotype in competitive adherence of cells to other cells versus underlying substrates can inform such processes as tissue development, cancer progression, and wound healing. This study investigated how mechanophenotype, defined by whole-cell, elastic/viscoelastic properties for the perinuclear region, and cellular assembly are intertwined through the mechanosensing process. Atomic force microscopy was used to characterize the temporal elastic/viscoelastic properties of individual and assembled fibroblasts grown on substrates with elastic moduli above, below, or similar to whole-cell mechanophenotypes measured for three, genetically modified cell lines. All cells were at their most compliant immediately after plating but transitioned to distinct, stiffer mechanophenotypes by Day 1 after acclimation. This mechanical state, and cellular assembly/morphology, did not change significantly over the following three days of testing, regardless of substrate compliance or cellular organization (multi-cell nodules/plaques or single cells). Interestingly, cells formed 3D nodules when attached to substrates with elastic moduli less than their own but spread readily on substrates with moduli equal to or greater than their own, suggesting a preference to adhere to the stiffest surface sensed (substrate or cell). This suggests that inherent mechanophenotype plays a role as a competing surface during microenvironment mechanosensing and subsequent cell-cell-substrate organization.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据