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Cellular nanoscale stiffness patterns governed by intracellular forces

Cell stiffness measurements have led to insights into various physiological and pathological processes(1,2). Although many cellular behaviors are influenced by intracellular mechanical forces(3–6) that also alter the material properties of the cell, the precise mechanistic relationship between intra...

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Autores principales: Mandriota, Nicola, Friedsam, Claudia, Jones-Molina, John A., Tatem, Kathleen V., Ingber, Donald E., Sahin, Ozgur
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6754298/
https://www.ncbi.nlm.nih.gov/pubmed/31209386
http://dx.doi.org/10.1038/s41563-019-0391-7
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author Mandriota, Nicola
Friedsam, Claudia
Jones-Molina, John A.
Tatem, Kathleen V.
Ingber, Donald E.
Sahin, Ozgur
author_facet Mandriota, Nicola
Friedsam, Claudia
Jones-Molina, John A.
Tatem, Kathleen V.
Ingber, Donald E.
Sahin, Ozgur
author_sort Mandriota, Nicola
collection PubMed
description Cell stiffness measurements have led to insights into various physiological and pathological processes(1,2). Although many cellular behaviors are influenced by intracellular mechanical forces(3–6) that also alter the material properties of the cell, the precise mechanistic relationship between intracellular forces and cell stiffness remains unclear. Here we develop a high spatial resolution cell mechanical imaging platform that reveals the existence of nanoscale stiffness patterns that are governed by intracellular forces. Based on these findings, we develop and validate a cellular mechanical model that quantitatively relates cell stiffness to intracellular forces. This allows us to determine the magnitude of tension within actin bundles, cell cortex, and plasma membrane from the cell stiffness patterns across individual cells. These results expand our knowledge on the mechanical interaction between cells and their environments and offer an alternative approach to determine physiologically-relevant intracellular forces from high-resolution cell stiffness images.
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spelling pubmed-67542982019-12-17 Cellular nanoscale stiffness patterns governed by intracellular forces Mandriota, Nicola Friedsam, Claudia Jones-Molina, John A. Tatem, Kathleen V. Ingber, Donald E. Sahin, Ozgur Nat Mater Article Cell stiffness measurements have led to insights into various physiological and pathological processes(1,2). Although many cellular behaviors are influenced by intracellular mechanical forces(3–6) that also alter the material properties of the cell, the precise mechanistic relationship between intracellular forces and cell stiffness remains unclear. Here we develop a high spatial resolution cell mechanical imaging platform that reveals the existence of nanoscale stiffness patterns that are governed by intracellular forces. Based on these findings, we develop and validate a cellular mechanical model that quantitatively relates cell stiffness to intracellular forces. This allows us to determine the magnitude of tension within actin bundles, cell cortex, and plasma membrane from the cell stiffness patterns across individual cells. These results expand our knowledge on the mechanical interaction between cells and their environments and offer an alternative approach to determine physiologically-relevant intracellular forces from high-resolution cell stiffness images. 2019-06-17 2019-10 /pmc/articles/PMC6754298/ /pubmed/31209386 http://dx.doi.org/10.1038/s41563-019-0391-7 Text en Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms
spellingShingle Article
Mandriota, Nicola
Friedsam, Claudia
Jones-Molina, John A.
Tatem, Kathleen V.
Ingber, Donald E.
Sahin, Ozgur
Cellular nanoscale stiffness patterns governed by intracellular forces
title Cellular nanoscale stiffness patterns governed by intracellular forces
title_full Cellular nanoscale stiffness patterns governed by intracellular forces
title_fullStr Cellular nanoscale stiffness patterns governed by intracellular forces
title_full_unstemmed Cellular nanoscale stiffness patterns governed by intracellular forces
title_short Cellular nanoscale stiffness patterns governed by intracellular forces
title_sort cellular nanoscale stiffness patterns governed by intracellular forces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6754298/
https://www.ncbi.nlm.nih.gov/pubmed/31209386
http://dx.doi.org/10.1038/s41563-019-0391-7
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