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Interaction of olfactory ensheathing cells with other cell types in vitro and after transplantation: glial scars and inflammation.

Abstract：

:Olfactory ensheathing cells (OECs) have been investigated extensively as a therapy to promote repair in the injured CNS, with variable efficacy in numerous studies over the previous decade. In many studies that report anatomical and functional recovery, the beneficial effects have been attributed to the ability of OECs to cross the PNS-CNS boundary, their production of growth factors, cell adhesion molecules and extracellular matrix proteins that promote and guide axon growth, and their ability to remyelinate axons. In this brief review, we focus on the interaction between OECs and astrocytes in vivo and in vitro, in the context of how OECs may be overcoming the deleterious effects of the glial scar. Drawing from a selection of different experimental models of spinal injury, we discuss the morphological alterations of the glial scar associated with OEC transplants, and the in vitro research that has begun to elucidate the interaction between OECs and the cell types that compose the glial scar. We also discuss recent research showing that OECs bear properties of immune cells and the consequent implication that they may modulate neuroinflammation when transplanted into CNS injury sites. Future studies in unraveling the molecular interaction between OECs and other glial cells may help explain some of the variability in outcomes when OECs are used as transplants in CNS injury and more importantly, contribute to the optimization of OECs as a cell-based therapy for CNS injury. This article is part of a Special Issue entitled: Understanding olfactory ensheathing glia and their prospect for nervous system repair.

journal_name

Exp Neurol

journal_title

Experimental neurology

authors

Chuah MI,Hale DM,West AK

doi

10.1016/j.expneurol.2010.08.012

subject

Has Abstract

pub_date

2011-05-01 00:00:00

pages

46-53

issue

1

eissn

0014-4886

issn

1090-2430

pii

S0014-4886(10)00294-3

journal_volume

229

pub_type

杂志文章,评审

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