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BIOPHYSICS OF THE PROVISIONAL MATRIX

The provisional matrix is the term given to the temporary extracellular matrix that cells assemble during wound healing. Evidence indicates that in the setting of many diseases, including fibrotic diseases and cancer, cells assemble a similar matrix. This matrix is primarily composed of a protein known as fibronectin, which has unique mechanical properties that alter cellular response. We experimentally investigate the effects of fibronectin fibrils on cellular mechanical responses, and, in conjunction with Dr. Seth Weinberg's lab, build computational models of fibronectin fibrils to better understand the relationship between form and function in these important provisional matrix fibrils.

GROWTH FACTOR SIGNALING IN THE PROVISIONAL MATRIX

Fibronectin fibrils in the provisional matrix are not simply structural elements; they also provide a platform to modulate growth factor signaling. Fibronectin contains a growth factor binding domain that can cluster growth factors in the provisional matrix. We are studying how this localization of soluble signals leads to altered cellular responses.

MECHANOTRANSDUCTION IN
EPITHELIAL-MESENCHYMAL TRANSITION

Epithelial-Mesenchymal Transition is a complex process in which epithelial cells, which normally form a confluent sheet of cells that line organs in the body, transdifferentiate into mesenchymal cells, which migrate independently and assemble provisional matrix fibrils.
The interactions between cell-matrix forces, cell-cell forces, and intracellular signaling are complex and inter-related. We are building computational models (in conjunction with Dr. Seth Weinberg's lab) that predict these interactions, and then experimentally investigate the interactions using a host of tools to measure cellular forces and EMT phenotype.

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The Lemmon Lab at Virginia Commonwealth University specializes in cell-matrix mechanobiology. 苹果iOS科学上网神器ShadowRocket使用教程附去广告及GFWList | ...:2021年11月25日 - ShadowRocket是苹果iOS设备上的一款伕理工具,支持协议众多,使用方便,除了支持常见的Http等伕理外,还可众被用做Shadowsocks、ShadowsocksR、V2Ray的客...

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