RESUMO
PURPOSE: To describe a new technique for isolation of a mesenchymal stem cells (MSCs) population from the olfactory mucosa in rabbits. METHODS: Olfactory stem cells (OSCs) were retrieved from under the cribriform plate of the Ethmoid bone. Several assays were accomplished to characterize the cell population and attest its viability in vitro. The cells were submitted to flow cytometry with the antibodies CD34, CD45, CD73, CD79, CD90 and CD105 and also they were induced to differentiate in three lineages. Functional evaluation involved analysis of in vitro growth behavior, colony forming unit like fibroblasts (CFU-f) and cryopreservation response. Further transduction with Green Fluorescent Protein (GFP) was also performed. RESULTS: The OSCs showed mesenchymal features, as positive response to CD34, CD73 and CD90 antibodies and plasticity. Additionally, these cells have high proliferated rate, and they could be cultured through many passages and kept the ability to proliferate and differentiate after cryopreservation. The positive response to the transduction signalizes the possibility of cellular tracking in vivo. This is a desirable feature in case those cells are used for pre-clinical trials. CONCLUSION: The cells harvested were mesenchymal stem cells and the technique described is therefore efficient for rabbit olfactory stem cells isolation.
Assuntos
Animais , Coelhos , Separação Celular/métodos , Células-Tronco Mesenquimais/citologia , Mucosa Olfatória/citologia , /fisiologia , /fisiologia , Antígenos Thy-1/fisiologia , Células Cultivadas , Ensaio de Unidades Formadoras de Colônias , Criopreservação , Diferenciação Celular/fisiologia , Plasticidade Celular/fisiologia , Proliferação de Células/fisiologia , Osso Etmoide/citologia , Citometria de Fluxo , Proteínas de Fluorescência Verde/metabolismo , Mucosa Olfatória/crescimento & desenvolvimentoRESUMO
The bone marrow is the largest reserve of stem cells into the body, consisting of stromal cells/mesenchymal niches and hematopoietic system. These cells can differentiate as different lineages as osteogenic, chondrogenic and adipogenic. The bone marrow stem cells population has widely used and an attractive target for potential therapeutic treatment for preclinical trials, due its high plasticity of differentiation. Thus, with this review we aimed to show an overview of stem cells and mainly bone marrow cells with basic concepts, as well as their potential new venues for treatment in regenerative veterinary medicine.
A medula óssea é a maior reserva de células-tronco do corpo, cujo consistem em células mesenquimais e hematopoiéticas. Estas células têm a capacidade de diferenciar-se em varias linhagens, como osteogênicas, condrogênicas e adipogênicas. A população de células-tronco derivadas da medula óssea tem sido um alvo atraente para tratamentos terapêuticos e ensaios pré-clínicos, devido sua elevada plasticidade e capacidade de diferenciação. Assim, esta revisão objetiva mostrar uma visão geral das célulastronco e principalmente conceitos básicos sobre as células da medula óssea, bem como os seus potenciais e novos espaços para o tratamento regenerativo na medicina veterinária.
Assuntos
Animais , Células-Tronco , Medicina Veterinária , Medula ÓsseaRESUMO
The bone marrow is the largest reserve of stem cells into the body, consisting of stromal cells/mesenchymal niches and hematopoietic system. These cells can differentiate as different lineages as osteogenic, chondrogenic and adipogenic. The bone marrow stem cells population has widely used and an attractive target for potential therapeutic treatment for ple-clinical trials, due its high plasticity of differentiation. Thus, with this review we aimed to show an overview of stem cells and mainly bone marrow cells with basic concepts, as well as their potential new venues for treatment in regenerative veterinary medicine.
A medula óssea é a maior reserva de células-tronco do corpo, cujo consistem em células mesenquimais e hematopoiéticas. Estascélulas têm a capacidade de diferenciar-se em varias linhagens, como osteogênicas, condrogênicas e adipogênicas. A populaçãode células-tronco derivadas da medula óssea tem sido um alvo atraente para tratamentos terapêuticos e ensaios pré-clínicos,devido sua elevada plasticidade e capacidade de diferenciação. Assim, esta revisão objetiva mostrar uma visão geral das célulastroncoe principalmente conceitos básicos sobre as células da medula óssea, bem como os seus potenciais e novos espaços parao tratamento regenerativo na medicina veterinária.