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TitleInjectable hyaluronic acid hydrogels enriched with platelet lysate as a cryostable off-the-shelf system for cell-based therapies
Author(s)Neves, Lisete S.
Babo, Pedro Miguel Sousa
Gonçalves, A. I.
Almeida, Raquel Costa
Caridade, Sofia Glória Ferreira
Mano, J. F.
Domingues, Rui Miguel Andrade
Rodrigues, Márcia T.
Reis, R. L.
Gomes, Manuela E.
Human adipose-derived stem cells
Hyaluronic acid
Injectable cell delivery system
Platelet lysate
Issue dateMay-2017
JournalRegenerative Engineering and Translational Medicine
CitationNeves L. S., Babo P. S., Gonçalves A. I., Costa-Almeida R., Caridade S. G., Mano J. F., Domingues R. M. A., Rodrigues M. T., Reis R. L., Gomes M. E. Injectable Hyaluronic Acid Hydrogels Enriched with Platelet Lysate as a Cryostable Off-the-Shelf System for Cell-Based Therapies, Regenerative Engineering and Translational Medicine, Vol. 3, Issue 2, pp. 53-69 , doi:10.1007/s40883-017-0029-8, 2017
Abstract(s)Cell-based regenerative medicine strategies hold a great potential to revolutionize the treatment of a large number of injuries with limited regenerative potential. However, the effectiveness of the simple injection of a cell suspension in a target site/tissue of action is often limited by the dispersion of cells toward other tissues, hindering their therapeutic action. Nevertheless, the development of a custom-made cell carrier that can perfectly fit a patientâ s defect and be ready on demand is still a challenging task. The present study proposes the development of an off-the-shelf injectable cell delivery system combining a photocross-linkable hyaluronic acid (HA) matrix enriched with platelet lysate (PL) and human adipose tissue- derived stem cells (hASCs), which can be stored using standard cryopreservation methods and used when required. The obtained results indicate that the mechanical and viscoelastic properties of the system are improved in the presence of cells and no significant differences were identified between cell- laden hydrogels produced before or after cryopreservation. In PL-enriched hydrogels, cells tend to better recover from cryopreservation maintaining the values of cell viability and DNA content. Moreover, viable cells laden in our system and expressing stemness markers were detected after 21 days in culture. Altogether, the results obtained in this work demon- strate the potential of the developed strategy as an injectable cell delivery system for ready-to-use applications or as a cryo- preserved product to be available on demand for cell-based therapies. 
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Appears in Collections:3B’s - Artigos em revistas/Papers in scientific journals

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