Ultrastructural characterization of bovine umbilical cord blood cells


Autoria(s): Rodrigues,Gustavo C; Oliveira,Lílian J; Monteiro,Janaína M; Lima,Ana R de; Gonçalez,Patricia O; Hernandez-Blazquez,Francisco J; Leiser,Rudolf; Kfoury Jr,José R
Data(s)

01/10/2010

Resumo

The umbilical cord blood (UCB) is an important source of pluripotent stem cells, which motivated researches on ontogeny and transplantation. The morphological characterization of umbilical cord cells is the first step to establish subsequent experiments on these areas. Although some information on humans can be found, no data on UCB is available for bovines. Therefore, this work is the first attempt to conduct an ultrastructural characterization of bovine umbilical cord blood. Blood was collected from the umbilical cord of twenty fetuses by punction of the umbilical vein. Samples were processed for whole leucocytes observation by centrifugation and the buffy coat was collected. Cells were washed and pelleted and prepared according to the standard protocol of the transmission electron microscopy. The presence of cells with morphologic characteristics compatible with the precursors from the erythrocytic, neutrophilic, eosinophilic, basophilic, and lymphocytic lineages was observed. Atypical cells with peculiar morphological features, strongly similar to apoptotic cells, were seen. Bovine neutrophils with three types of cytoplasmic granules were also found in the blood. The ultrastructural characteristics of observed bovine UCB cells where similar to those found in other species, suggesting that bovines could possibly constitute an experimental model for approaches on UCB cells research.

Formato

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Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-736X2010001000015

Idioma(s)

en

Publicador

Colégio Brasileiro de Patologia Animal - CBPA. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)

Fonte

Pesquisa Veterinária Brasileira v.30 n.10 2010

Palavras-Chave #Umbilical cord blood cells #haematopoietic progenitor cells #bovine #ultrastructure
Tipo

journal article