Vol 10: Hypoxia-conditioned media allows species-specific attraction of bone marrow stromal cells without need for recombinant proteins.Reportar como inadecuado



 Vol 10: Hypoxia-conditioned media allows species-specific attraction of bone marrow stromal cells without need for recombinant proteins.


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This article is from BMC Veterinary Research, volume 10.AbstractBackground: In vivo tissue regeneration depends on migration of stem cells into injured areas, their differentiation into specific cell types, and their interaction with other cells that are necessary to generate new tissue. Human mesenchymal stem cells, a subset of bone marrow stromal cells (BMSCs), can migrate and differentiate into osteoblasts in bone tissue. This can be facilitated by recombinant growth factors and cytokines. In many animal species, the availability of genomic sequences, recombinant proteins, and-or antibodies is limited so that new approaches are needed to generate resources that facilitate migration of stem cells into tissue defect areas. Here we used bone marrow stromal cells of human, ovine, equine, and canine origin to generate hypoxia-conditioned media (HCM) in order to attract BMSCs of the respective species in migration assays. Results: We show that HCM contain attractors even more potent than vascular endothelial growth factor and can therefore be used in many animal species without the need for purified proteins. Conclusion: Generation of HCM is easy and cheap compared to preparation and purification of protein fractions and-or recombinant proteins. Hence, HCM could be applied in large animals (e.g. sheep, horse, dogs) for attraction of BMSCs into tissue defects caused by tumor resection or trauma.



Autor: Gabrielyan, Anastasia; Knaak, Sven; Gelinsky, Michael; Arnhold, Stefan; Rosen-Wolff, Angela

Fuente: https://archive.org/







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