INT47974
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
Capsaicin treatment of cells also blocked the degradation of I kappa B alpha, and thus the nuclear translocation of the p65 subunit of NF-kappa B, which is essential for NF-kappa B activation. | |||||||||||||||
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Western blot analysis of IkappaBalpha protein in the cytoplasm of IL-1beta-stimulated T98G cells and electrophoretic mobility shift assay (EMSA) on corresponding nuclear extracts indicate that acetaminophen (10-1000 microM) dose-dependently inhibits both IkappaBalpha degradation and NF-kappaB nuclear translocation. | |||||||||||||||
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IL-1beta-induced NF-kappaB activation was suppressed directly by cocktails of curcumin and resveratrol through inhibition of Ikappakappa and proteasome activation, inhibition of IkappaBalpha phosphorylation and degradation, and inhibition of nuclear translocation of NF-kappaB. | |||||||||||||||
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Furthermore, sodium salicylate blocked the LPS-induced proteolytic degradation of I kappa B alpha, which prevented the nuclear translocation of c-Rel/p65 heterodimers. | |||||||||||||||
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Resveratrol, like N-Ac-Leu-Leu-norleucinal (ALLN) suppressed IL-1beta-induced proteasome function and the degradation of IkappaBalpha (an inhibitor of NF-kappaB) without affecting IkappaBalpha kinase activation, IkappaBalpha-phosphorylation or IkappaBalpha-ubiquitination which suppressed nuclear translocation of the p65 subunit of NF-kappaB and its phosphorylation. | |||||||||||||||
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These inhibitions appeared to correlate with the suppression of NF-kappaB activation by harpagoside, as pre-treating cells with harpagoside blocked the translocation of NF-kappaB into the nuclear compartments and degradation of the inhibitory subunit IkappaB-alpha. | |||||||||||||||
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In the present work, we have found that capsaicin suppresses TPA-stimulated activation of NF-kappaB through inhibition of IkappaB alpha degradation and blockade of subsequent nuclear translocation of p65 in human promyelocytic leukemia HL-60 cells. | |||||||||||||||
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