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Regulation of Toll‐like receptor 4 expression and its signaling by hypoxia in cultured microglia by Jiyeon Ock; Jaeyoon Jeong; Wan Sung Choi; Won‐Ha Lee; Sang‐Hyun Kim; In Kyeom Kim; Kyoungho Suk is a Neuroscience article available to read on EtoBox.
What is Regulation of Toll‐like receptor 4 expression and its signaling by hypoxia in cultured microglia about?
## Abstract Hypoxia is an important biological signal that regulates a wide variety of physiological responses. At the same time, hypoxia is involved in multiple pathological situations. In particular, hypoxia is closely associated with neural injury in the brain. Hypoxia has been recently proposed as a neuroinflammatogen, as it can induce the inflammatory activation of microglia, a major cellular source of inflammatory mediators in the brain. In this article, we present evidence that hypoxia enhances Toll‐like receptor 4 (TLR4) expression in cultured microglia and differentially regulates the downstream signaling pathways of TLR4. Hypoxia up‐regulated TLR4 expression at the mRNA and protein levels in a microglia cell line, as well as in primary microglia cultures. Hypoxia, however, differentially regulated MyD88‐dependent and ‐independent pathways of TLR4 signaling: Hypoxia enhanced lipopolysaccharide (LPS)–induced interferon regulatory factor–3 (IRF‐3) activation and the subsequent expression of IFNβ (MyD88‐independent pathway), whereas it suppressed LPS‐induced NF‐κB activation (MyD88‐dependent pathway). Hypoxia did not affect IFNγ signaling, which was represented by signal tran
Who reads Regulation of Toll‐like receptor 4 expression and its signaling by hypoxia in cultured microglia?
It is typically read by researchers, students, and practitioners in Neuroscience.
- Author
- Jiyeon Ock; Jaeyoon Jeong; Wan Sung Choi; Won‐Ha Lee; Sang‐Hyun Kim; In Kyeom Kim; Kyoungho Suk
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0360-4012)
- Published
- 2007
- Language
- EN
- Field
- Neuroscience (Life Sciences)