Comparison of Impregnated Bone Morphogenetic Protein-2 Release Kinetics from Biopolymer Scaffolds


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Abstract

The purpose of this study was to evaluate the release kinetics of impregnated recombinant human bone morphogenetic protein-2 (rhBMP-2) from different engineered scaffolds. Poly(lactide-co-glycolide) (PLG) matrices prepared by supercritical fluid technologies (SCFT) showed the highest biocompatibility and long-term release of rhBMP-2. There was an even release of rhBMP-2 from them for 11 days. The subsequent use of laser sintering allowed delaying the peak of the protein release for a period of 13 to 15 days. The average loss of rhBMP-2 using SCFT did not exceed 20%. The maximum release of rhBMP-2 from a collagen-fibronectin hydrogel was in the period from 4 to 6 days. But 47 ± 12% rhBMP-2 loss was shown. Highly porous polylactide-based scaffolds obtained by freeze-drying were inferior to other scaffolds in their ability to release rhBMP-2 for a prolonged period. The hydrogel and chitosan-based granules showed high cytotoxicity and a short period of protein release.

About the authors

A. V. Vasilyev

Central Research Institute of Dentistry and Maxillofacial Surgery

Author for correspondence.
Email: vav-stom@yandex.ru
Russian Federation, Moscow, 119021

T. B. Bukharova

Research Centre for Medical Genetics

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 115522

V. S. Kuznetsova

Central Research Institute of Dentistry and Maxillofacial Surgery

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 119021

Yu. D. Zagoskin

National Research Center Kurchatov Institute

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 123182

S. A. Minaeva

Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences

Email: vav-stom@yandex.ru
Russian Federation, Moscow, Troitsk, 142190

T. E. Grigoriev

National Research Center Kurchatov Institute

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 123182

E. N. Antonov

Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences

Email: vav-stom@yandex.ru
Russian Federation, Moscow, Troitsk, 142190

E. O. Osidak

Imtek Company Ltd.

Email: vav-stom@yandex.ru
Russian Federation, Moscow

E. V. Galitsyna

Research Centre for Medical Genetics

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 115522

I. I. Babichenko

Central Research Institute of Dentistry and Maxillofacial Surgery

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 119021

S. P. Domogatsky

Cardiology Research and Production Center, Ministry of Health of the Russian Federation

Email: vav-stom@yandex.ru
Russian Federation, Moscow

V. K. Popov

Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences

Email: vav-stom@yandex.ru
Russian Federation, Moscow, Troitsk, 142190

S. N. Chvalun

National Research Center Kurchatov Institute

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 123182

D. V. Goldshtein

Research Centre for Medical Genetics

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 115522

A. A. Kulakov

Central Research Institute of Dentistry and Maxillofacial Surgery

Email: vav-stom@yandex.ru
Russian Federation, Moscow, 119021

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