Abstract
Purpose
There is evidence showing that mesenchymal stromal cells (MSC) may constitute a potential therapeutic strategy to induce bone regeneration. In this work, we investigate the capacity of autologous bone marrow (BM) MSC loaded on collagen microspheres (CM) and included into autologous platelet-rich plasma (PRP) clots (MSC/CM/PRP) to induce bone formation in patients with nonunion lesions.
Methods
MSC were isolated from BM cells of patients with nonunion lesions. Phenotypical (marker expression) and functional studies (osteogenic differentiation) were performed. MSC were seeded on CM and included into autologous PRP clot (MSC/CM/PRP). The capacity of MSC/CM/PRP to induce bone formation was evaluated in three patients diagnosed with nonunion.
Results
MSC loaded on CM/PRP clots maintain their biological functions, in vitro. After three months, post-MSC transplantation, all patients showed evidence of osteogenesis at the site of nonunion. After one year, all patients showed a complete healing of the nonunion.
Conclusions
Our results support the use of autologous MSC transplanted as MSC/CM/PRP for the treatment of nonunion fractures. Future studies incorporating a larger number of patients may confirm the results obtained in this work.
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Acknowledgments
This work was supported by funds from FONACIT (Fondo Nacional de Ciencia, Tecnología e Investigación), Project No. G-2005000405, and LOCTI Project No. 2011000906
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Wittig, O., Romano, E., González, C. et al. A method of treatment for nonunion after fractures using mesenchymal stromal cells loaded on collagen microspheres and incorporated into platelet-rich plasma clots. International Orthopaedics (SICOT) 40, 1033–1038 (2016). https://doi.org/10.1007/s00264-016-3130-6
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DOI: https://doi.org/10.1007/s00264-016-3130-6