Early events in cell spreading as a model for quantitative analysis of biomechanical events

Haguy Wolfenson, Thomas Iskratsch, Michael Sheetz

Research output: Contribution to journalReview article

22 Citations (Scopus)

Abstract

In this review, we focus on the early events in the process of fibroblast spreading on fibronectin matrices of different rigidities. We present a focused position piece that illustrates the many different tests that a cell makes of its environment before it establishes mature matrix adhesions. When a fibroblast is placed on fibronectin-coated glass surfaces at 37°C, it typically spreads and polarizes within 20-40 min primarily through αvβ3 integrin binding to fibronectin. In that short period, the cell goes through three major phases that involve binding, integrin activation, spreading, and mechanical testing of the surface. The advantage of using the model system of cell spreading from the unattached state is that it is highly reproducible and the stages that the cell undergoes can thus be studied in a highly quantitative manner, in both space and time. The mechanical and biochemical parameters that matter in this example are often surprising because of both the large number of tests that occur and the precision of the tests. We discuss our current understanding of those tests, the decision tree that is involved in this process, and an extension to the behavior of the cells at longer time periods when mature adhesions develop. Because many other matrices and integrins are involved in cell-matrix adhesion, this model system gives us a limited view of a subset of cellular behaviors that can occur. However, by defining one cellular process at a molecular level, we know more of what to expect when defining other processes. Because each cellular process will involve some different proteins, a molecular understanding of multiple functions operating within a given cell can lead to strategies to selectively block a function.

Original languageEnglish (US)
Pages (from-to)2508-2514
Number of pages7
JournalBiophysical Journal
Volume107
Issue number11
DOIs
StatePublished - Aug 2 2015
Externally publishedYes

Fingerprint

Fibronectins
Integrins
Fibroblasts
Cell-Matrix Junctions
Decision Trees
Glass
Proteins

ASJC Scopus subject areas

  • Biophysics

Cite this

Early events in cell spreading as a model for quantitative analysis of biomechanical events. / Wolfenson, Haguy; Iskratsch, Thomas; Sheetz, Michael.

In: Biophysical Journal, Vol. 107, No. 11, 02.08.2015, p. 2508-2514.

Research output: Contribution to journalReview article

Wolfenson, Haguy ; Iskratsch, Thomas ; Sheetz, Michael. / Early events in cell spreading as a model for quantitative analysis of biomechanical events. In: Biophysical Journal. 2015 ; Vol. 107, No. 11. pp. 2508-2514.
@article{50f5a304ff1846c5a50ffaef32ec3102,
title = "Early events in cell spreading as a model for quantitative analysis of biomechanical events",
abstract = "In this review, we focus on the early events in the process of fibroblast spreading on fibronectin matrices of different rigidities. We present a focused position piece that illustrates the many different tests that a cell makes of its environment before it establishes mature matrix adhesions. When a fibroblast is placed on fibronectin-coated glass surfaces at 37°C, it typically spreads and polarizes within 20-40 min primarily through αvβ3 integrin binding to fibronectin. In that short period, the cell goes through three major phases that involve binding, integrin activation, spreading, and mechanical testing of the surface. The advantage of using the model system of cell spreading from the unattached state is that it is highly reproducible and the stages that the cell undergoes can thus be studied in a highly quantitative manner, in both space and time. The mechanical and biochemical parameters that matter in this example are often surprising because of both the large number of tests that occur and the precision of the tests. We discuss our current understanding of those tests, the decision tree that is involved in this process, and an extension to the behavior of the cells at longer time periods when mature adhesions develop. Because many other matrices and integrins are involved in cell-matrix adhesion, this model system gives us a limited view of a subset of cellular behaviors that can occur. However, by defining one cellular process at a molecular level, we know more of what to expect when defining other processes. Because each cellular process will involve some different proteins, a molecular understanding of multiple functions operating within a given cell can lead to strategies to selectively block a function.",
author = "Haguy Wolfenson and Thomas Iskratsch and Michael Sheetz",
year = "2015",
month = "8",
day = "2",
doi = "10.1016/j.bpj.2014.10.041",
language = "English (US)",
volume = "107",
pages = "2508--2514",
journal = "Biophysical Journal",
issn = "0006-3495",
publisher = "Biophysical Society",
number = "11",

}

TY - JOUR

T1 - Early events in cell spreading as a model for quantitative analysis of biomechanical events

AU - Wolfenson, Haguy

AU - Iskratsch, Thomas

AU - Sheetz, Michael

PY - 2015/8/2

Y1 - 2015/8/2

N2 - In this review, we focus on the early events in the process of fibroblast spreading on fibronectin matrices of different rigidities. We present a focused position piece that illustrates the many different tests that a cell makes of its environment before it establishes mature matrix adhesions. When a fibroblast is placed on fibronectin-coated glass surfaces at 37°C, it typically spreads and polarizes within 20-40 min primarily through αvβ3 integrin binding to fibronectin. In that short period, the cell goes through three major phases that involve binding, integrin activation, spreading, and mechanical testing of the surface. The advantage of using the model system of cell spreading from the unattached state is that it is highly reproducible and the stages that the cell undergoes can thus be studied in a highly quantitative manner, in both space and time. The mechanical and biochemical parameters that matter in this example are often surprising because of both the large number of tests that occur and the precision of the tests. We discuss our current understanding of those tests, the decision tree that is involved in this process, and an extension to the behavior of the cells at longer time periods when mature adhesions develop. Because many other matrices and integrins are involved in cell-matrix adhesion, this model system gives us a limited view of a subset of cellular behaviors that can occur. However, by defining one cellular process at a molecular level, we know more of what to expect when defining other processes. Because each cellular process will involve some different proteins, a molecular understanding of multiple functions operating within a given cell can lead to strategies to selectively block a function.

AB - In this review, we focus on the early events in the process of fibroblast spreading on fibronectin matrices of different rigidities. We present a focused position piece that illustrates the many different tests that a cell makes of its environment before it establishes mature matrix adhesions. When a fibroblast is placed on fibronectin-coated glass surfaces at 37°C, it typically spreads and polarizes within 20-40 min primarily through αvβ3 integrin binding to fibronectin. In that short period, the cell goes through three major phases that involve binding, integrin activation, spreading, and mechanical testing of the surface. The advantage of using the model system of cell spreading from the unattached state is that it is highly reproducible and the stages that the cell undergoes can thus be studied in a highly quantitative manner, in both space and time. The mechanical and biochemical parameters that matter in this example are often surprising because of both the large number of tests that occur and the precision of the tests. We discuss our current understanding of those tests, the decision tree that is involved in this process, and an extension to the behavior of the cells at longer time periods when mature adhesions develop. Because many other matrices and integrins are involved in cell-matrix adhesion, this model system gives us a limited view of a subset of cellular behaviors that can occur. However, by defining one cellular process at a molecular level, we know more of what to expect when defining other processes. Because each cellular process will involve some different proteins, a molecular understanding of multiple functions operating within a given cell can lead to strategies to selectively block a function.

UR - http://www.scopus.com/inward/record.url?scp=84914145318&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84914145318&partnerID=8YFLogxK

U2 - 10.1016/j.bpj.2014.10.041

DO - 10.1016/j.bpj.2014.10.041

M3 - Review article

C2 - 25468330

AN - SCOPUS:84914145318

VL - 107

SP - 2508

EP - 2514

JO - Biophysical Journal

JF - Biophysical Journal

SN - 0006-3495

IS - 11

ER -