IndraLab

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"Furthermore, USP14 was also found to inhibit the RIG-I-triggered NF-kappaB activation by deubiquitinating K63 linked RIG-I."

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"These results suggest that USP14 specifically enhanced NLRC5 mediated inhibition of NF-kappaB activation through the inhibition of NLRC5 ubiquitination via its DUB activity."

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"Because USP14 specifically enhanced NLRC5 mediated inhibition of NF-kappaB activation, we reasoned that USP14 deficiency would result in the accumulation of ubiquitinated NLRC5 and increased NF-kappaB activation under physiological conditions."

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"We found that overexpression of USP14 in 293/TLR4 cells suppressed NF-kappaB activity through TLR4 stimulation."

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"In this study, we aimed to clarify the role of the USP14-NLRC5 pathway in wear particle induced osteolysis in vitro and in vivo We found that NLRC5 or USP14 overexpression inhibits titanium particle induced proinflammatory tumor necrosis factor alpha (TNF-alpha) production and NF-kappaB pathway activation, and also decreases M1 macrophage polarization and PI3K and AKT pathway activation."

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"Next, we tested whether USP14 also enhanced NLRC5 mediated inhibition of TRAF2/6 independent noncanonical NF-kappaB signaling."

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"These results suggest that USP14 inhibits NF-kappaB signaling in an NLRC5 dependent manner."