| Cell nanomechanics and focal adhesions are regulated by retinol and conjugated linoleic acid in a dose-dependent manner. | |
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MedLine Citation:
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PMID: 19546491 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Retinol and conjugated linoleic acid (CLA) have previously been shown to have an important role in gene expression and various cellular processes, including differentiation, proliferation and cell death. In this study we have investigated the effect of retinol and CLA, both individually and in combination, on the intracellular cytoskeleton, focal adhesions (FAs) and the nanomechanical properties of 3T3 fibroblasts. We observed a dose-dependent decrease in the formation of FAs following treatment with either compound, which was directly correlated to an increase in cell height (>30%) and a decrease in the measured Young's modulus (approximately 28%). Furthermore, treatments with both compounds demonstrated an increased effect and led to a reduction of >70% in the average number of FAs per cell and a decrease of >50% in average cell stiffness. These data reveal that retinol and CLA disrupt FA formation, leading to an increase in cell height and a significant decrease in stiffness. These results may broaden our understanding of the interplay between cell nanomechanics and cellular contact with the external microenvironment, and help to shed light on the important role of retinoids and CLA in health and disease. |
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Authors:
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Yaron R Silberberg; Gleb E Yakubov; Michael A Horton; Andrew E Pelling |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-06-23 |
Journal Detail:
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Title: Nanotechnology Volume: 20 ISSN: 1361-6528 ISO Abbreviation: Nanotechnology Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2009-06-24 Completed Date: 2009-08-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101241272 Medline TA: Nanotechnology Country: England |
Other Details:
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Languages: eng Pagination: 285103 Citation Subset: IM |
Affiliation:
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The London Centre for Nanotechnology and Centre for NanoMedicine, University College London, London, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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3T3 Cells Animals Biomechanics / drug effects* Cell Shape / drug effects Cytoskeleton / drug effects, metabolism Dose-Response Relationship, Drug Focal Adhesions / metabolism* Linoleic Acids, Conjugated / pharmacology* Mice Microscopy, Atomic Force Microscopy, Confocal Vitamin A / pharmacology* Vitamins / pharmacology* |
| Grant Support | |
ID/Acronym/Agency:
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//Biotechnology and Biological Sciences Research Council; //Wellcome Trust |
| Chemical | |
Reg. No./Substance:
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0/Linoleic Acids, Conjugated; 0/Vitamins; 11103-57-4/Vitamin A |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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