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Clonal Astrocytic Response to Cortical Injury

AutorMartín-López, Eduardo ; García-Marqués, Jorge ; Núñez-Llaves, R.; Lopez-Mascaraque, Laura
Fecha de publicación2013
EditorPublic Library of Science
CitaciónPLoS ONE 8 (2013)
ResumenAstrocytes are a heterogeneous population of glial cells with multifaceted roles in the central nervous system. Recently, the new method for the clonal analysis Star Track evidenced the link between astrocyte heterogeneity and lineage. Here, we tested the morphological response to mechanical injury of clonally related astrocytes using the Star Track approach, which labels each cell lineage with a specific code of colors. Histological and immunohistochemical analyses at 7 days post injury revealed a variety of morphological changes that were different among distinct clones. In many cases, cells of the same clone responded equally to the injury, suggesting the dependence on their genetic codification (intrinsic response). However, in other cases cells of the same clone responded differently to the injury, indicating their response to extrinsic factors. Thus, whereas some clones exhibited a strong morphological alteration or a high proliferative response to the injury, other clones located at similar distances to the lesion were apparently unresponsive. Concurrence of different clonal responses to the injury reveals the importance of the development determining the astrocyte features in response to brain injuries. These features should be considered to develop therapies that affect glial function. © 2013 Martín-López et al.
Identificadoresdoi: 10.1371/journal.pone.0074039
issn: 1932-6203
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