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ISSN: 0974-8369

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Research Article

Biological Characterization and In Vitro Effects of Human Concentrated Growth Factor Preparation: An Innovative Approach to Tissue Regeneration

Elisa Borsani1#, Veronica Bonazza1#, Barbara Buffoli1, Marco Angelo Cocchi1, Stefania Castrezzati1, Giorgio Scarì2, Francesco Baldi3, Stefano Pandini3, Stefano Licenziati4, Silvia Parolini5, Rita Rezzani1 and Luigi F Rodella1*

1Division of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa n.11 , 25123 Brescia, Italy

2Department of Biosciences, University of Milan, Via Celoria n. 26, 20133 Milano, Italy

3Department of Mechanical and Industrial Engineering, Via Branze n. 38, 25123 Brescia, Italy

4S.T.E.M. Laboratorio Analisi Cliniche Srl, Via Rodi n. 49, 25121 Brescia, Italy

5Department of Molecular and Translational Medicine, Division of Experimental Oncology and Immunology, University of Brescia, Viale Europa n. 11, 25123 Brescia, Italy

#The Authors share the first authorship

Corresponding Author:
Rodella Luigi Fabrizio
MD, Department of Clinical and Experimental Sciences
Division of Anatomy and Physiopathology
University of Brescia
V.le Europa 11, 25123 Brescia, Italy
Tel: +39-030-3717485
Fax: +39-030-3717486
E-mail: [email protected]

Received date: September 22, 2015; Accepted date: October 31, 2015; Published date: November 07, 2015

Citation: Borsani E, Bonazza V, Buffoli B, Cocchi MA, Castrezzati S, et al. (2015) Biological Characterization and In Vitro Effects of Human Concentrated Growth Factor Preparation: An Innovative Approach to Tissue Regeneration. Biol Med (Aligarh) 7:256. doi: 10.4172/0974-8369.1000256

Copyright: © 2015 Borsani E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Scientific background: Platelet concentrates are nowadays widely applied in different clinical fields to improve soft tissue and bone regeneration. “Concentrated Growth Factors” (CGF) is a new generation of platelet concentrate products, which exhibits an interesting clinical and biotechnological application potential.
Aim of the study: The aim of this study is to assess the biological rationale for the use of CGF, by evaluating blood cell localization, the in vitro cumulative release of seven growth factors (PDGF-AB, VEGF, TNF-α, TGF-β1, BDNF, BMP- 2 and IGF-1), its in vitro effects on cell proliferation and its mechanical behavior.
Methods: CGFs were obtained from volunteer donors. Blood cell localization was evaluated after properly morphological staining and immunohistochemistry. The amount of growth factors release was measured at 5 hours, 1, 3, 6, 7 and 8 days, using ELISA assay. Cells were cultured with and without CGF and their proliferation were evaluated after 72 hours, performing the quantification of Ki-67, using flow cytometry (FACS). The mechanical response of CGF under compression was also attempted.
Results: The results showed that platelets and leukocytes were found in a very thin space called “buffy coat”, localized between the white and red part of CGF. Each growth factor evaluated, had a specific kinetic release with a great variability among subjects. The in vitro cell proliferation was stimulated. CGF showed an “apparent plasticity” and its mechanical response was influenced by fibrin network structure. Conclusion: These findings support the CGF’s clinical use and will allow us to better understand and improve the clinical outcomes.


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