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Title

Early neural cell death is an extensive, dynamic process in the embryonic chick and mouse retina

AuthorsChavarría, Teresa; Baleriola, Jimena CSIC ORCID; Mayordomo, Raquel; Pablo, Flora de CSIC ; De la Rosa, Enrique J. CSIC ORCID
Issue Date2013
PublisherHindawi Publishing Corporation
CitationThe Scientific World Journal (2013),ID 627240
AbstractOrchestrated proliferation, differentiation, and cell death contribute to the generation of the complex cytoarchitecture of the central nervous system, including that of the neuroretina. However, few studies have comprehensively compared the spatiotemporal patterns of these 3 processes, or their relative magnitudes. We performed a parallel study in embryonic chick and mouse retinas, focusing on the period during which the first neurons, the retinal ganglion cells (RGCs), are generated. The combination of in vivo BrdU incorporation, immunolabeling of retinal whole mounts for BrdU and for the neuronal markers Islet1/2 and βIII-tubulin, and TUNEL allowed for precise cell scoring and determination the spatiotemporal patterns of cell proliferation, differentiation, and death. As predicted, proliferation preceded differentiation. Cell death and differentiation overlapped to a considerable extent, although the magnitude of cell death exceeded that of neuronal differentiation. Precise quantification of the population of recently born RGCs, identified by BrdU and βIII-tubulin double labeling, combined with cell death inhibition using a pan-caspase inhibitor, revealed that apoptosis decreased this population by half shortly after birth. Taken together, our findings provide important insight into the relevance of cell death in neurogenesis.
Description9 p.-4 fig.
Publisher version (URL)http://dx.doi.org/10.1155/2013/627240
URIhttp://hdl.handle.net/10261/110001
DOI10.1155/2013/627240
ISSN2356-6140
E-ISSN1537-744X
Appears in Collections:(CIB) Artículos




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