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Year 2012 - Volume 32, Number 1001
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Viability of equine bone marrow mononuclear fraction and adipose tissue–derived stromal vascular fraction after freezing and thawing process, 32(Supl.1):118-124
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ABSTRACT.- Ribeiro G., Massoco C.O. & Lacerda Neto J.C. 2012. [Viability of equine bone marrow mononuclear fraction and adipose tissue–derived stromal vascular fraction after freezing and thawing process.] Viabilidade celular da fração mononuclear da medula óssea e fração vascular estromal do tecido adiposo de equinos após o processo de congelamento e descongelamento. Pesquisa Veterinária Brasileira 32(Supl.1):118-124. Departamento de Patologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil. E-mail: cmassoco@usp.br
In five adult horses, bone marrow was aspirated from the sternum and adipose tissue extracted from the gluteal region. The samples were processed to obtain the mononuclear fraction of bone marrow and stromal vascular fraction of adipose tissue, and the number of cells obtained and cell viability were determined. Next, the cell samples were frozen in medium containing 20% fetal bovine serum and 10% dimethylsulfoxide. After one month, the cells were thawed and cell viability was again determined. The results revealed that the techniques for collecting both bone marrow and adipose tissue in horses are simple, rapid and safe. The methods used for processing the samples were efficient, yielding about 95% cell viability. After freezing, mean viability of the mononuclear cells of bone marrow was 86%, and 64% for the stromal vascular cells of adipose tissue. In view of the importance of cell therapy in equine clinical medicine, it is concluded that further studies are needed for the standardization of a cryopreservation technique to maintain the integrity for the mononuclear fraction of bone marrow and the stromal vascular fraction of adipose tissue in horses. |
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