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Cell mechanics of alveolar epithelial cells (AECs) and macrophages (AMs).

Abstract : Cell mechanics provides an integrated view of many biological phenomena which are intimately related to cell structure and function. Because breathing constitutes a sustained motion synonymous with life, pulmonary cells are normally designed to support permanent cyclic stretch without breaking, while receiving mechanical cues from their environment. The authors study the mechanical responses of alveolar cells, namely epithelial cells and macrophages, exposed to well-controlled mechanical stress in order to understand pulmonary cell response and function. They discuss the principle, advantages and limits of a cytoskeleton-specific micromanipulation technique, magnetic bead twisting cytometry, potentially applicable in vivo. They also compare the pertinence of various models (e.g., rheological; power law) used to extract cell mechanical properties and discuss cell stress/strain hardening properties and cell dynamic response in relation to the structural tensegrity model. Overall, alveolar cells provide a pertinent model to study the biological processes governing cellular response to controlled stress or strain.
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Contributor : Georges Guellaen <>
Submitted on : Wednesday, December 17, 2008 - 12:47:10 PM
Last modification on : Wednesday, January 27, 2021 - 10:38:02 AM
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Sophie Féréol, Redouane Fodil, Gabriel Pelle, Bruno Louis, Daniel Isabey. Cell mechanics of alveolar epithelial cells (AECs) and macrophages (AMs).. Respiratory Physiology and Neurobiology, Elsevier, 2008, 163 (1-3), pp.3-16. ⟨10.1016/j.resp.2008.04.018⟩. ⟨inserm-00347982⟩



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