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Biological behavior of neurally differentiated periodontal ligament stem cells on different titanium implant surfaces

Identifieur interne : 002031 ( Main/Curation ); précédent : 002030; suivant : 002032

Biological behavior of neurally differentiated periodontal ligament stem cells on different titanium implant surfaces

Auteurs : Li Xiaojie [République populaire de Chine] ; Liao Dapeng [République populaire de Chine] ; Gong Ping [République populaire de Chine] ; Dong Yan [République populaire de Chine] ; Sun Gang [République populaire de Chine]

Source :

Journal of Biomedical Materials Research Part A [ 1549-3296 ] ; 2014-08.

RBID : ISTEX:21ACEBBDDE0DB5B21F33FE74A5AC5E754521C3C3

Abstract

We investigated the biological behavior of periodontal ligament stem cells (PDLSCs) induced to differentiate into Schwann cells (SCs) on the surfaces of titanium discs. Two types of titanium surfaces, sand blasted and acid etched (SA) and smooth polished, were prepared on titanium discs, and the behavior of SC‐like cells on these discs was investigated. Cell morphology was examined by scanning electron microscopy, and cell proliferation was assessed using assays for methylthiazol tetrazolium metabolism and total protein content. Real‐time polymerase chain reaction and Western blotting analyses were used to determine the gene and protein expression, respectively, of SC markers by PDLSCs. Differentiated PDLSCs could adhere, proliferate, differentiate, and express SC marker genes and proteins on the prepared titanium surfaces, and the highest levels of SC marker protein expression were observed in PDLSCs on SA titanium surfaces. SA titanium surfaces show good biocompatibility for the SC‐like cells, which is important for the application of these cells in peri‐implant nerve tissue engineering, through which they are expected to improve the osseoperception of dental implants. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 2805–2812, 2014.

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DOI: 10.1002/jbm.a.34953

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<front><div type="abstract">We investigated the biological behavior of periodontal ligament stem cells (PDLSCs) induced to differentiate into Schwann cells (SCs) on the surfaces of titanium discs. Two types of titanium surfaces, sand blasted and acid etched (SA) and smooth polished, were prepared on titanium discs, and the behavior of SC‐like cells on these discs was investigated. Cell morphology was examined by scanning electron microscopy, and cell proliferation was assessed using assays for methylthiazol tetrazolium metabolism and total protein content. Real‐time polymerase chain reaction and Western blotting analyses were used to determine the gene and protein expression, respectively, of SC markers by PDLSCs. Differentiated PDLSCs could adhere, proliferate, differentiate, and express SC marker genes and proteins on the prepared titanium surfaces, and the highest levels of SC marker protein expression were observed in PDLSCs on SA titanium surfaces. SA titanium surfaces show good biocompatibility for the SC‐like cells, which is important for the application of these cells in peri‐implant nerve tissue engineering, through which they are expected to improve the osseoperception of dental implants. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 2805–2812, 2014.</div>
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Biological behavior of neurally differentiated periodontal ligament stem cells on different titanium implant surfaces

Biological behavior of neurally differentiated periodontal ligament stem cells on different titanium implant surfaces

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