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Inflammation

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01.10.2008

Lipopolysaccharide-Induced Upregulation of Tumor Necrosis Factor-α (TNF-α) in Rat Spinal Cord

verfasst von: Qin Shen, Dan Zhou, Zhiyun Ben, Chun Cheng, Yonghua Liu, Aiguo Shen

Erschienen in: Inflammation | Ausgabe 5/2008

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Abstract

The proinflammatory and lipopolysaccharide (LPS)-inducible cytokine tumor necrosis factor α (TNF-α) has been shown to enhance primary sensory nociceptive signaling. However, the precise cellular sites of TNF-α synthesis is still a matter of controversy. Therefore, we focused our study on TNF-α protein synthesis and expression patterns in spinal cord of controls and rats under systemic challenge with LPS. The Enzyme-linked immunosorbent (ELISA) assay showed that the protein level of TNF-α reached peak at 6 h. Double immunofluorescence revealed that LPS-induced expression of TNF-α exclusively located in a subpopulation of neurons, microglia and macrophages. These observations have demonstrated the production of this proinflammatory cytokine by spinal neurons, but the inherent mechanisms remain unknown. Further studies are needed to confirm the pathogenic role of tumor necrosis factor in the early stage of inflammation.

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Titel: Lipopolysaccharide-Induced Upregulation of Tumor Necrosis Factor-α (TNF-α) in Rat Spinal Cord
verfasst von: Qin Shen
Dan Zhou
Zhiyun Ben
Chun Cheng
Yonghua Liu
Aiguo Shen
Publikationsdatum: 01.10.2008
Verlag: Springer US
Erschienen in: Inflammation / Ausgabe 5/2008
Print ISSN: 0360-3997
Elektronische ISSN: 1573-2576
DOI: https://doi.org/10.1007/s10753-008-9083-1

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