Expression profiling identifies a molecular signature of reactive astrocytes stimulated by cyclic AMP or proinflammatory cytokines

GC Daginakatte, A Gadzinski, RJ Emnett, JL Stark… - Experimental …, 2008 - Elsevier
GC Daginakatte, A Gadzinski, RJ Emnett, JL Stark, ER Gonzales, P Yan, JM Lee, AH Cross
Experimental neurology, 2008Elsevier
Specialized glia, termed reactive astrocytes, accompany numerous pathologic conditions
affecting the central nervous system, including stroke, multiple sclerosis, and neoplasia. To
better define this important cell type, we employed high-density microarray gene expression
profiling using two in vitro models of reactive gliosis (stimulation with dbcAMP or IL-1β/IFNγ).
We identified 44 differentially expressed transcripts common to both in vitro models and
demonstrated that a subset of these genes are also differentially expressed in response to …
Specialized glia, termed reactive astrocytes, accompany numerous pathologic conditions affecting the central nervous system, including stroke, multiple sclerosis, and neoplasia. To better define this important cell type, we employed high-density microarray gene expression profiling using two in vitro models of reactive gliosis (stimulation with dbcAMP or IL-1β/IFNγ). We identified 44 differentially expressed transcripts common to both in vitro models and demonstrated that a subset of these genes are also differentially expressed in response to experimental autoimmune encephalomyelitis and focal cerebral ischemia in vivo. Moreover, this pattern of differential gene expression is not observed in hyperproliferating or neoplastic glia.
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