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CD144, CD146 and VEGFR-2 properly identify circulating endothelial cell
Mariane Cristina Flores-Nascimento1, Aline Morandi Alessio1, Fernanda Loureiro de Andrade Orsi1
1Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
Unlabelled:
Studies evaluating circulating endothelial cells by flow cytometry are faced by a lack of consensus about the best combination of monoclonal antibodies to be used. The rarity of these cells in peripheral blood, which represent 0.01% of mononuclear cells, drastically increases this challenge.
Objective:
The aim of this study is to suggest some combinations of markers that would safely and properly identify these cells.
Methods:
Flow cytometry analysis of circulating endothelial cells was performed applying three different panels composed of different combinations of the CD144, CD146, CD31, CD133, CD45 and anti-Vascular endothelial growth factor receptor-2 antibodies.
Results:
In spite of the rarity of the events, they were detectable and presented similar inter-person numbers of circulating endothelial cells.
Conclusion:
The combination of markers successfully identified the circulating endothelial cells in healthy individuals, with the use of three different panels confirming the obtained data as reliable.
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