alexa An Artificial Silk-elastin-like Protein Suppresses Cells Adhesion without Apoptosis | OMICS International | Abstract
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
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Research Article

An Artificial Silk-elastin-like Protein Suppresses Cells Adhesion without Apoptosis

Satoshi Somamoto1,2 and Yasuhiko Tabata1*

1Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku Kyoto 606-8507, Japan

2Sanyo Chemical Industries Ltd., 1-40, Goryo Ohara, Nishikyo-ku, Kyoto 615-8245, Japan

Corresponding Author:
Dr. Yasuhiko TABATA
Department of Biomaterials
Institute for Frontier Medical Sciences
Kyoto University, 53 Kawara-cho Shogoin
Sakyo-ku Kyoto 606-8507, Japan
Tel: +81-75-751-4121
Fax: +81-75-751-4646
E-mail: [email protected]

Received date: May 08, 2012; Accepted date: June 14, 2012; Published date: June 16, 2012

Citation: Somamoto S, Tabata Y (2012) An Artificial Silk-elastin-like Protein Suppresses Cells Adhesion without Apoptosis. J Biotechnol Biomater 2:139. doi:10.4172/2155-952X.1000139

Copyright: © 2012 Somamoto S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


The objective of this study is to evaluate the effect of an artificial silk-elastin-like protein (SELP) on the adhesion and apoptotic behavior of cells. When MC3T3-E1 cells were cultured on dishes coated with different concentrations of SELP, the cells adhesion was suppressed with the increasing coating concentration. As controls, the coating with fibronectin enhanced the number of cells adhered in the concentration dependent manner. The poly (vinyl alcohol) (PVA) and agarose coating suppressed the cell adhesion. Elastin did not affect the cell adhesion behavior. The shape of cells cultured on the SELP, PVA, and agarose-coated dishes was spherical and spreaded cells were observed on the SELP- and fibronectin-coated ones. The level of caspase 3 and 9 was evaluated. The level was significantly high for the PVA- and agarose-coated dishes compared with non-coated dishes, whereas it was low for the fibronectincoated ones. The level was decreased with an increase in the concentration of SELP coated. The number of cells free of annexin V activity for the SELP group as low as that for the fibronectin group. The cell number was high for the PVA and agarose groups. The actin filaments were detected for the SELP-coated dishes, in remarked contrast to the PVA-coated ones. Pretreatment with the antibody of integrin αV or α5 significantly decreased the caspase 3 level for cells cultured on the SELP-coated dishes. It is concluded that the SELP has an unique property which allows cells to suppress their adhesion, but not to induce their apoptosis.

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