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Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers
[Image: see text] Smooth muscle cells convert between a motile, proliferative “synthetic” phenotype and a sessile, “contractile” phenotype. The ability to manipulate the phenotype of aortic smooth muscle cells with thin biocompatible polyelectrolyte multilayers (PEMUs) with common surface chemical c...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2009
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2775193/ https://www.ncbi.nlm.nih.gov/pubmed/19817347 http://dx.doi.org/10.1021/bm9007309 |
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author | Moussallem, Maroun D. Olenych, Scott G. Scott, Shannon L. Keller, Thomas C. S. Schlenoff, Joseph B. |
author_facet | Moussallem, Maroun D. Olenych, Scott G. Scott, Shannon L. Keller, Thomas C. S. Schlenoff, Joseph B. |
author_sort | Moussallem, Maroun D. |
collection | PubMed |
description | [Image: see text] Smooth muscle cells convert between a motile, proliferative “synthetic” phenotype and a sessile, “contractile” phenotype. The ability to manipulate the phenotype of aortic smooth muscle cells with thin biocompatible polyelectrolyte multilayers (PEMUs) with common surface chemical characteristics but varying stiffness was investigated. The stiffness of (PAH/PAA) PEMUs was varied by heating to form covalent amide bond cross-links between the layers. Atomic force microscopy (AFM) showed that cross-linked PEMUs were thinner than those that were not cross-linked. AFM nanoindentation demonstrated that the Young’s modulus ranged from 6 MPa for hydrated native PEMUs to more than 8 GPa for maximally cross-linked PEMUs. Rat aortic A7r5 smooth muscle cells cultured on native PEMUs exhibited morphology and motility of synthetic cells and expression of the synthetic phenotype markers vimentin, tropomyosin 4, and nonmuscle myosin heavy chain IIB (nmMHCIIB). In comparison, cells cultured on maximally cross-linked PEMUs exhibited the phenotype markers calponin, smooth muscle myosin heavy chain (smMHC), myocardin, transgelin, and smooth muscle α-actin (smActin) that are characteristic of the smooth muscle “contractile” phenotype. Consistent with those cells being “contractile”, A7r5 cells grown on cross-linked PEMUs produced contractile force when stimulated with a Ca(2+) ionophore. |
format | Text |
id | pubmed-2775193 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-27751932009-11-10 Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers Moussallem, Maroun D. Olenych, Scott G. Scott, Shannon L. Keller, Thomas C. S. Schlenoff, Joseph B. Biomacromolecules [Image: see text] Smooth muscle cells convert between a motile, proliferative “synthetic” phenotype and a sessile, “contractile” phenotype. The ability to manipulate the phenotype of aortic smooth muscle cells with thin biocompatible polyelectrolyte multilayers (PEMUs) with common surface chemical characteristics but varying stiffness was investigated. The stiffness of (PAH/PAA) PEMUs was varied by heating to form covalent amide bond cross-links between the layers. Atomic force microscopy (AFM) showed that cross-linked PEMUs were thinner than those that were not cross-linked. AFM nanoindentation demonstrated that the Young’s modulus ranged from 6 MPa for hydrated native PEMUs to more than 8 GPa for maximally cross-linked PEMUs. Rat aortic A7r5 smooth muscle cells cultured on native PEMUs exhibited morphology and motility of synthetic cells and expression of the synthetic phenotype markers vimentin, tropomyosin 4, and nonmuscle myosin heavy chain IIB (nmMHCIIB). In comparison, cells cultured on maximally cross-linked PEMUs exhibited the phenotype markers calponin, smooth muscle myosin heavy chain (smMHC), myocardin, transgelin, and smooth muscle α-actin (smActin) that are characteristic of the smooth muscle “contractile” phenotype. Consistent with those cells being “contractile”, A7r5 cells grown on cross-linked PEMUs produced contractile force when stimulated with a Ca(2+) ionophore. American Chemical Society 2009-10-09 2009-11-09 /pmc/articles/PMC2775193/ /pubmed/19817347 http://dx.doi.org/10.1021/bm9007309 Text en Copyright © 2009 American Chemical Society http://pubs.acs.org This is an open-access article distributed under the ACS AuthorChoice Terms & Conditions. Any use of this article, must conform to the terms of that license which are available at http://pubs.acs.org. |
spellingShingle | Moussallem, Maroun D. Olenych, Scott G. Scott, Shannon L. Keller, Thomas C. S. Schlenoff, Joseph B. Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title | Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title_full | Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title_fullStr | Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title_full_unstemmed | Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title_short | Smooth Muscle Cell Phenotype Modulation and Contraction on Native and Cross-Linked Polyelectrolyte Multilayers |
title_sort | smooth muscle cell phenotype modulation and contraction on native and cross-linked polyelectrolyte multilayers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2775193/ https://www.ncbi.nlm.nih.gov/pubmed/19817347 http://dx.doi.org/10.1021/bm9007309 |
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