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Título

CCAAT/enhancer binding protein δ regulates glial proinflammatory gene expression

AutorValente, Tony; Straccia, Marco CSIC ORCID CVN; Gresa-Arribas, Nuria CSIC; Dentesano, Guido CSIC; Tusell, Josep Maria CSIC; Serratosa, Joan CSIC ORCID CVN; Mancera, Pilar CSIC; Solà, Carme CSIC ORCID; Saura, Josep CSIC ORCID
Palabras claveTranscription factors
Neuroinflammation
Amyotrophic lateral sclerosis
Lipopolysaccharide
Microglia
Fecha de publicación2013
EditorElsevier
CitaciónNeurobiology of Aging 34(9): 2110-2124 (2013)
ResumenThe transcription factor CCAAT/enhancer binding protein δ (C/EBPδ) is expressed in activated astrocytes and microglia and can regulate the expression of potentially detrimental proinflammatory genes. The objective of this study was to determine the role of C/EBPδ in glial activation. To this end, glial activation was analyzed in primary glial cultures and in the central nervous system from wild type and C/EBPδ−/− mice. In vitro studies showed that the expression of proinflammatory genes nitric oxide (NO)synthase-2, cyclooxygenase-2, and interleukin (IL)-6 in glial cultures, and the neurotoxicity elicited by microglia in neuron–microglia cocultures, were decreased in the absence of C/EBPδ when cultures were treated with lipopolysaccharide (LPS) and interferon γ, but not with LPS alone. In C/EBPδ−/− mice, systemic LPS-induced brain expression of NO synthase-2, tumor necrosis factor-α, IL-1β, and IL-6 was attenuated. Finally, increased C/EBPδ nuclear expression was observed in microglial cells from amyotrophic lateral sclerosis patients and G93A-SOD1 mice spinal cord. These results demonstrate that C/EBPδ plays a key role in the regulation of proinflammatory gene expression in glial activation and suggest that C/EBPδ inhibition has potential for the treatment of neurodegenerative disorders, in particular, amyotrophic lateral sclerosis.
URIhttp://hdl.handle.net/10261/88447
DOI10.1016/j.neurobiolaging.2013.02.007
Identificadoresdoi: 10.1016/j.neurobiolaging.2013.02.007
issn: 0197-4580
e-issn: 1558-1497
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