Automated analysis of cell-matrix adhesions in 2D and 3D environments.

Abstract:

:Cell-matrix adhesions are of great interest because of their contribution to numerous biological processes, including cell migration, differentiation, proliferation, survival, tissue morphogenesis, wound healing, and tumorigenesis. Adhesions are dynamic structures that are classically defined on two-dimensional (2D) substrates, though the need to analyze adhesions in more physiologic three-dimensional (3D) environments is being increasingly recognized. However, progress has been greatly hampered by the lack of available tools to analyze adhesions in 3D environments. To address this need, we have developed a platform for the automated analysis, segmentation, and tracking of adhesions (PAASTA) based on an open source MATLAB framework, CellAnimation. PAASTA enables the rapid analysis of adhesion dynamics and many other adhesion characteristics, such as lifetime, size, and location, in 3D environments and on traditional 2D substrates. We manually validate PAASTA and utilize it to quantify rate constants for adhesion assembly and disassembly as well as adhesion lifetime and size in 3D matrices. PAASTA will be a valuable tool for characterizing adhesions and for deciphering the molecular mechanisms that regulate adhesion dynamics in 3D environments.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Broussard JA,Diggins NL,Hummel S,Georgescu W,Quaranta V,Webb DJ

doi

10.1038/srep08124

subject

Has Abstract

pub_date

2015-01-29 00:00:00

pages

8124

issn

2045-2322

pii

srep08124

journal_volume

5

pub_type

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