Volume 13, Issue 10 pp. 1861-1871
RESEARCH ARTICLE

A comparison study of different decellularization treatments on bovine articular cartilage

Toktam Ghassemi

Toktam Ghassemi

Department of Chemical Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

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Nasser Saghatoleslami

Nasser Saghatoleslami

Department of Chemical Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

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Nasser Mahdavi-Shahri

Nasser Mahdavi-Shahri

Department of Biology, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

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Maryam M. Matin

Maryam M. Matin

Department of Biology, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

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Reza Gheshlaghi

Reza Gheshlaghi

Department of Chemical Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran

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Ali Moradi

Corresponding Author

Ali Moradi

Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

Correspondence

Ali Moradi, Bone and Joint Research Lab, Library Building, Ghaem Hospital, Shariati Square, Mashhad, Iran.

Email: [email protected]

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First published: 17 July 2019
Citations: 23

Abstract

Previous researches have emphasized on suitability of decellularized tissues for regenerative applications. The decellularization of cartilage tissue has always been a challenge as the final product must be balanced in both immunogenic residue and mechanical properties. This study was designed to compare and optimize the efficacy of the most common chemical decellularization treatments on articular cartilage. Freeze/thaw cycles, trypsin, ethylenediaminetetraacetic acid (EDTA), sodium dodecyl sulfate (SDS), and Triton-X 100 were used at various concentrations and time durations for decellularization of bovine distal femoral joint cartilage samples. Histological staining, scanning electron microscopy, DNA quantification, compressive strength test, and Fourier-transform infrared spectroscopy were performed for evaluation of the decellularized cartilage samples. Treatment with 0.05% trypsin/EDTA for 1 day followed by 3% SDS for 2 days and 3% Triton X-100 for another 2 days resulted in significant reduction in DNA content and simultaneous maintenance of mechanical properties. Seeding the human adipose-derived stem cells onto the decellularized cartilage confirmed its biocompatibility. According to our findings, an optimized physiochemical decellularization method can yield in a nonimmunogenic biomechanically compatible decellularized tissue for cartilage regeneration application.

CONFLICT OF INTEREST

The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.

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