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Artículo

Neurotrophic factor NT-3 displays a non-canonical cell guidance signaling function for cephalic neural crest cells

Zanin, Juan PabloIcon ; Battiato, Natalia Laura; Rovasio, Roberto AmericoIcon
Fecha de publicación: 11/2013
Editorial: Elsevier Gmbh
Revista: European Journal Of Cell Biology
ISSN: 0171-9335
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

Chemotactic cell migration is triggered by extracellular concentration gradients of molecules segregated by target fields. Neural crest cells (NCCs), paradigmatic as an accurately moving cell population, undergo wide dispersion along multiple pathways, invading with precision defined sites of the embryo to differentiate into many derivatives. This report addresses the involvement of NT-3 in early colonization by cephalic NCCs invading the optic vesicle region. The results of in vitro and in vivo approaches showed that NCCs migrate directionally up an NT-3 concentration gradient. We also demonstrated the expression of NT-3 in the ocular region as well as their functional TrkB, TrkC and p75 receptors on cephalic NCCs. On whole-mount embryo, a perturbed distribution of NCCs colonizing the optic vesicle target field was shown after morpholino cancelation of cephalic NT-3 or TrkC receptor on NCCs, as well as in situ blocking of TrkC receptor of mesencephalic NCCs by specific antibody released from inserted microbeads. The present results strongly suggest that, among other complementary cell guidance factor(s), the chemotactic response of NCCs toward the ocular region NT-3 gradient is essential for spatiotemporal cell orientation, amplifying the functional scope of this neurotrophic factor as a molecular guide for the embryo cells, besides its well-known canonical functions.
Palabras clave: Neural Crest , Chemotaxis , Neurotrophin 3 , Cell Guidance
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/26094
DOI: http://dx.doi.org/10.1016/j.ejcb.2013.10.006
URL: http://www.sciencedirect.com/science/article/pii/S0171933513000654
Colecciones
Articulos(IIBYT)
Articulos de INSTITUTO DE INVESTIGACIONES BIOLOGICAS Y TECNOLOGICAS
Citación
Zanin, Juan Pablo; Battiato, Natalia Laura; Rovasio, Roberto Americo; Neurotrophic factor NT-3 displays a non-canonical cell guidance signaling function for cephalic neural crest cells; Elsevier Gmbh; European Journal Of Cell Biology; 92; 8-9; 11-2013; 264-279
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