Lipopolysaccharide Regulation of Toll-Like Receptor-4 and Matrix Metalloprotease-9 in Human Primary Corneal Fibroblast Cells.

Wong, Y., Sethu, C., Louafi, F., Hossain, P.
Journal   Invest Ophthalmol Vis Sci.
Species  
Analytes Measured   GM-CSF , IL-10 , IL-12 p70 , IL-2 , IL-6 , IL-8
Matrix Tested   Tissue culture supernatants
Year   2011
Volume   52
Page Numbers   2796-2803
Application   Cytokines and Chemokines
Abstract
PURPOSE: Toll-like receptor 4 (TLR4) is a key component of the innate immune response related to microbial keratitis (MK). Pathways and downstream effectors relating to TLR signaling remain unknown in human bacterial MK. To this effect, by activating the TLR4 signaling cascade with lipopolysaccharide (LPS), the authors investigated whether TLR4, matrix metalloproteases (MMP)-2, MMP-9, and cytokine expression in diseased human primary corneal fibroblasts (CFs) were altered.

METHODS: Human primary CFs from patients with severe corneal ulceration were cultured in conjunction with healthy control CFs and treated with LPS derived from Pseudomonas aeruginosa.

RESULTS: TLR4, MMP-2, and MMP-9 were constitutively expressed in both ulcerated and control CFs. Diseased CFs showed greater responsiveness to LPS stimulation. TLR4 and MMP-9 expression was dose-dependently increased by LPS. MMP-2 expression was not affected by LPS. Analysis on cytokine expression revealed that IL-2, IL-8, IL-10, IL-12p70, GM-CSF, IFNγ, and TNFα expression increased after LPS treatment but only in diseased cells.

CONCLUSIONS: TLR4 activation with LPS increases TLR4, MMP-9, and cytokine expression in CFs cultured from patients with microbial keratitis. Overexpression of these products may provide a local mechanism to eradicate bacterial infection but may also aid corneal ulceration and perforation.

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Multiplex
V-PLEX Human Biomarker 40-Plex Kit
CRP, Eotaxin, Eotaxin-3, FGF (basic), GM-CSF, ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-8 (HA), IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 | Human
Multiplex
V-PLEX Plus Human Biomarker 40-Plex Kit
CRP, Eotaxin, Eotaxin-3, FGF (basic), GM-CSF, ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-8 (HA), IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 | Human
Multiplex
V-PLEX Neuroinflammation Panel 1 Human Kit
CRP, Eotaxin, Eotaxin-3, FGF (basic), ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 | Human
Multiplex
V-PLEX Plus Neuroinflammation Panel 1 Human Kit
CRP, Eotaxin, Eotaxin-3, FGF (basic), ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 | Human
Multiplex
V-PLEX Chemokine Panel 1 NHP Kit
Eotaxin-3, IL-8, IL-8 (HA), IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC | Non-human primate
Multiplex
V-PLEX Cytokine Panel 1 NHP Kit
GM-CSF, IL-5, IL-7, IL-12/IL-23p40, IL-15, IL-16, IL-17A, TNF-β, VEGF-A | Non-human primate
Multiplex
V-PLEX NHP Cytokine 24-Plex Kit
Eotaxin-3, GM-CSF, IFN-γ, IL-1β, IL-2, IL-5, IL-6, IL-7, IL-8, IL-8 (HA), IL-10, IL-12/IL-23p40, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-β, VEGF-A | Non-human primate
Multiplex
V-PLEX NHP GM-CSF Kit
GM-CSF | Non-human primate
Singleplex
V-PLEX NHP IL-2 Kit
IL-2 | Non-human primate
Singleplex
V-PLEX NHP IL-6 Kit
IL-6 | Non-human primate
Singleplex
V-PLEX NHP IL-8 Kit
IL-8 | Non-human primate
Singleplex
V-PLEX NHP IL-10 Kit
IL-10 | Non-human primate
Singleplex
V-PLEX Plus Chemokine Panel 1 NHP Kit
Eotaxin-3, IL-8, IL-8 (HA), IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC | Non-human primate
Multiplex
V-PLEX Plus Cytokine Panel 1 NHP Kit
GM-CSF, IL-5, IL-7, IL-12/IL-23p40, IL-15, IL-16, IL-17A, TNF-β, VEGF-A | Non-human primate
Multiplex
V-PLEX Plus NHP Cytokine 24-Plex Kit
Eotaxin-3, GM-CSF, IFN-γ, IL-1β, IL-2, IL-5, IL-6, IL-7, IL-8, IL-8 (HA), IL-10, IL-12/IL-23p40, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-β, VEGF-A | Non-human primate
Multiplex
V-PLEX Plus NHP GM-CSF Kit
GM-CSF | Non-human primate
Singleplex
V-PLEX Plus NHP IL-2 Kit
IL-2 | Non-human primate
Singleplex
V-PLEX Plus NHP IL-6 Kit
IL-6 | Non-human primate
Singleplex
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