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The Impact of Rubella Virus Infection on a Secondary Inflammatory Response in Polarized Human MacrophagesSchilling, Erik, Grahnert, Anja, Pfeiffer, Lukas, Koehl, Ulrike, Claus, Claudia, Hauschildt, Sunna 24 March 2023 (has links)
Macrophages (MF) are known to exhibit distinct responses to viral and bacterial infection,
but how they react when exposed to the pathogens in succession is less well understood.
Accordingly, we determined the effect of a rubella virus (RV)-induced infection followed by
an LPS-induced challenge on cytokine production, signal transduction and metabolic
pathways in human GM (M1-like)- and M (M2-like)-MF. We found that infection of both
subsets with RV resulted in a low TNF-a and a high interferon (IFN, type I and type III)
release whereby M-MF produced far more IFNs than GM-MF. Thus, TNF-a production in
contrast to IFN production is not a dominant feature of RV infection in these cells. Upon
addition of LPS to RV-infected MF compared to the addition of LPS to the uninfected cells
the TNF-a response only slightly increased, whereas the IFN-response of both subtypes
was greatly enhanced. The subset specific cytokine expression pattern remained
unchanged under these assay conditions. The priming effect of RV was also observed
when replacing RV by IFN-b one putative priming stimulus induced by RV. Small amounts
of IFN-b were sufficient for phosphorylation of Stat1 and to induce IFN-production in
response to LPS. Analysis of signal transduction pathways activated by successive
exposure of MF to RV and LPS revealed an increased phosphorylation of NFkB (MMF),
but different to uninfected MF a reduced phosphorylation of ERK1/2 (both
subtypes). Furthermore, metabolic pathways were affected; the LPS-induced increase
in glycolysis was dampened in both subtypes after RV infection. In conclusion, we show
that RV infection and exogenously added IFN-b can prime MF to produce high amounts
of IFNs in response to LPS and that changes in glycolysis and signal transduction are
associated with the priming effect. These findings will help to understand to what extent
MF defense to viral infection is modulated by a following exposure to a bacterial infection.
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Activation of Caspase-1 Signaling Complexes by the P2X7 Receptor Requires Intracellular K <sup>+</sup> Efflux and Protein Synthesis Induced by Priming with Toll-Like Receptor LigandsKahlenberg, Joanne Michelle 29 June 2004 (has links)
No description available.
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Systems Biology Analysis of Macrophage Foam Cells: Finding a Novel Function for Peroxiredoxin IConway, James Patrick January 2007 (has links)
No description available.
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Orthopaedic Wear Particle-Induced Activation of MacrophagesBeidelschies, Michelle January 2009 (has links)
No description available.
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Expression and Function of ART2.1 ecto-ADP-ribosyltransferase in Inflammatory Effector CellsHong, Shiyuan 13 October 2009 (has links)
No description available.
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Mycobacterium tuberculosis-induced changes in HIV-1 trafficking in human antigen presenting cellsReuter, Morgan Ann 19 November 2010 (has links)
No description available.
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Microglial alterations in valproic acid models of autismAwale, Prabha Sumant 23 July 2012 (has links)
No description available.
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CLARIFYING THE ROLE OF MICROGLIA VERSUS MACROPHAGES IN FACILITATING NEUROINFLAMMATION SURROUNDING INTRACORTICAL MICROELECTRODESRavikumar, Madhumitha 12 June 2014 (has links)
No description available.
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The Role of Intraspinal Hemorrhage in Spinal Cord InjurySahinkaya, Fatma Rezan January 2014 (has links)
No description available.
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Improving Oncolytic Viral Therapy for Primary and Metastatic Tumors in the BrainMeisen, Walter Hans 22 May 2015 (has links)
No description available.
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