The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium.

The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium. Research Abstract Details 

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The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium. Abstract Text:

Juliette van den Dolder,John A Jansen,Juliette van den Dolder,John A Jansen,

The scaffold surface composition can be altered by the use of surface coatings. The use of thin coatings will give special surface properties, while the bulk properties of the scaffold are preserved. Collagen type I is known to play an important role during cell adhesion as well as osteoblast differentiation. A common way to coat surfaces is the adsorption method. An alternative way is the use of a protein immobilization method like p-nitrophenyl chloroformate. In this study, we investigated the effect of a collagen type I coating and p-nitrophenyl chloroformate as a protein immobilization method on osteoblast adhesion, proliferation, and differentiation. Titanium fiber meshes were treated with sodium hydroxide (NaOH), followed by p-nitrophenyl chloroformate, and coated with collagen type I. Osteoblast-like cells were seeded into the meshes and cultured for 24 days. The cell attachment, proliferation, and differentiation were measured by using Live and Dead assay, cell counting, DNA analysis, alkaline phosphatase activity assay, calcium content measurement, Real Time PCR (QPCR), and scanning electron microscopy (SEM). Results demonstrated that initially less cells were attached to the covalently bounded collagen meshes (NPC-Col) compared with titanium as control (Ti) and adsorbed collagen meshes (ABS-Col). Further, a decreased growth curve of cells cultured on the NPC-Col meshes was observed in comparison with Ti and ABS-Col meshes. The calcium measurements and SEM pictures revealed that all three surfaces showed differentiation of osteoblast-like cells after 8-24 days. On the basis of our results, we conclude that initially less cells were attached to the NPC-Col meshes and that they had a decreased proliferation rate. Further, we conclude that an adsorbed collagen type I coating stimulated the osteoblastic differentiation of rat bone marrow cells.

The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium. Publishing Authors By Initials

J van den Dolder,JA Jansen,J van den Dolder,JA Jansen,

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The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biomedical materials research. Part A

VOLUME: 83

Page Numbers: 712-9

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ISSN: 1549-3296

DAY: 1

MONTH: Dec

YEAR: 2007

The response of osteoblast-like cells towards collagen type I coating immobilized by p-nitrophenylchloroformate to titanium. Information

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LANGUAGE: eng

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AFFILIATION: Department of Periodontology and Biomaterials, Radboud University Nijmegen Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands. j.vandendolder@dent.umcn.nl

Country: United States

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MEDLINETA: J Biomed Mater Res A

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