Cooling and Cryopreservation of Equine Platelet-Rich Plasma With Dimethyl Sulfoxide and Trehalose

Equine platelet-rich plasma (PRP) has been used in horses to repair bone, articular and tendinous lesions, laminitis, and even endometritis. However, platelets have a very limited lifespan, which makes it difficult to prepare and use PRP, except in loco. With the aim to produce PRP with higher plate...

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Bibliographic Details
Published in:	Journal of equine veterinary science Vol. 72; pp. 112 - 116
Main Authors:	Kwirant, Liomara Andressa do Amaral, De La Corte, Flávio Desessards, Cantarelli, Camila, Cargnelutti, Juliana Felipetto, Martins, Mathias, Cabral, Mariê Wolski, Maciel, Nayrema, Rubin, Mara Iolanda Batistella
Format:	Journal Article
Language:	English
Published:	United States Elsevier Inc 01-01-2019
Subjects:	Cooling Cryopreservation DMSO Platelet-rich plasma (PRP) Trehalose Platelet-rich plasma (PRP) Cooling Trehalose Cryopreservation DMSO
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Summary:	Equine platelet-rich plasma (PRP) has been used in horses to repair bone, articular and tendinous lesions, laminitis, and even endometritis. However, platelets have a very limited lifespan, which makes it difficult to prepare and use PRP, except in loco. With the aim to produce PRP with higher platelet viability for clinical purposes, the effects of the cryoprotectants dimethyl sulfoxide (DMSO) and trehalose were evaluated on cooled (4°C) and cryopreserved (−196°C) equine PRP. The protocols of cooling and cryopreservation were performed independently, comparing the following treatments: fresh PRP, PRP + 6% DMSO, PRP + 300 mM of trehalose, and PRP only. The PRP samples were prepared by double centrifugation of the blood of six ponies, further divided into four aliquots. The cooled or cryopreserved aliquots were stored for 14 days. All samples were evaluated for the platelet count, the mean platelet volume, and the release of transforming growth factor beta 1 (TGF-β1). The number of platelets in the fresh PRP and cooled samples was similar; however, platelet count was higher in the fresh PRP than in cryopreserved samples. The release of TGF-β1 was higher in the fresh PRP (105891 ± 52398 pg/mL), but the stored samples still released significant amounts of this growth factor (27291 ± 9625 pg/mL). •The cooling process does not affect the number of platelets contained in platelet-rich plasma (PRP), whereas cryopreservation reduces platelet count.•Cooling and cryopreservation cause platelet damage.•Platelet cooling and cryopreservation protocols reduce platelet transforming growth factor beta 1 (TGF-β1) release.•Platelet-rich plasma stored at low temperatures preserves the ability to release TGF-β1.•Cryoprotectants at the concentration of 5% dimethyl sulfoxide and 300 mM of trehalose did not interfere in the cooling process or cryopreservation of equine PRP.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0737-0806 1542-7412
DOI:	10.1016/j.jevs.2018.10.009