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Effects of nanoporous anodic titanium oxide on human adipose derived stem cells

Authors Malec K, Góralska J, Hubalewska-Mazgaj M, Głowacz P, Jarosz M, Brzewski P, Sulka GD, Jaskuła M, Wybrańska I

Received 2 July 2016

Accepted for publication 24 August 2016

Published 14 October 2016 Volume 2016:11 Pages 5349—5360

DOI https://doi.org/10.2147/IJN.S116263

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Thomas Webster


Katarzyna Malec,1 Joanna Góralska,1 Magdalena Hubalewska-Mazgaj,2 Paulina Glowacz,1 Magdalena Jarosz,3 Pawel Brzewski,4 Grzegorz D Sulka,3 Marian Jaskula,3 Iwona Wybranska1

1Department of Clinical Biochemistry, Jagiellonian University Medical College, 2Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 3Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, 4Department of Dermatology, Jagiellonian University Medical College, Kraków, Poland

Abstract: The aim of current bone biomaterials research is to design implants that induce controlled, guided, successful, and rapid healing. Titanium implants are widely used in dental, orthopedic, and reconstructive surgery. A series of studies has indicated that cells can respond not only to the chemical properties of the biomaterial, but also, in particular, to the changes in surface topography. Nanoporous materials remain in focus of scientific queries due to their exclusive properties and broad applications. One such material is nanostructured titanium oxide with highly ordered, mutually perpendicular nanopores. Nanoporous anodic titanium dioxide (TiO2) films were fabricated by a three-step anodization process in propan-1,2,3-triol-based electrolyte containing fluoride ions. Adipose-derived stem cells offer many interesting opportunities for regenerative medicine. The important goal of tissue engineering is to direct stem cell differentiation into a desired cell lineage. The influence of nanoporous TiO2 with pore diameters of 80 and 108 nm on cell response, growth, viability, and ability to differentiate into osteoblastic lineage of human adipose-derived progenitors was explored. Cells were harvested from the subcutaneous abdominal fat tissue by a simple, minimally invasive, and inexpensive method. Our results indicate that anodic nanostructured TiO2 is a safe and nontoxic biomaterial. In vitro studies demonstrated that the nanotopography induced and enhanced osteodifferentiation of human adipose-derived stem cells from the abdominal subcutaneous fat tissue.

Keywords: adipose-derived stem cells, anodic titanium oxide, nanotopography, osteogenic differentiation, biomaterials

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