Abstract:
:We previously demonstrated that the expression of HSP20, a small heat shock protein, is inversely correlated with the progression of HCC. Inflammation is associated with HCC, and numerous cytokines, including TNF-α, act as key mediators in the progression of HCC. In the present study, we investigated whether HSP20 is implicated in the TNF-α-stimulated intracellular signaling in HCC using human HCC-derived HuH7 cells in the presence of TNF-α. In HSP20-overexpressing HCC cells, the cell growth was retarded compared with that in the control cells under long-term exposure of TNF-α. Because NF-κB pathway is the main intracellular signaling system activated by TNF-α, we investigated the effects of HSP20-overexpression of this pathway. The protein levels of IKK-α, but not IKK-β, in the HSP20-overexpressing cells were decreased. Short-term exposure to TNF-α-induced phosphorylation and degradation of IκB, and the phosphorylation and transactivational activity of NF-κB were suppressed in the HSP20-overexpressing HCC cells. Furthermore, the increase in IKK-α levels was accompanied by a decrease in the HSP20 levels in human HCC tissues. These findings strongly suggest that HSP20 might decrease the IKK-α protein level and that it down-regulates the TNF-α-stimulated intracellular signaling in HCC, thus resulting in the suppression of HCC progression.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Nagasawa T,Matsushima-Nishiwaki R,Yasuda E,Matsuura J,Toyoda H,Kaneoka Y,Kumada T,Kozawa Odoi
10.1016/j.abb.2014.10.010subject
Has Abstractpub_date
2015-01-01 00:00:00pages
1-8eissn
0003-9861issn
1096-0384pii
S0003-9861(14)00377-4journal_volume
565pub_type
临床试验,杂志文章abstract::Diglycyl triperoxodivanadate [V2O2(O2)3(Gly H)2(H2O)2], a synthetic compound with mu-peroxo-bridge derived from H2O2 and vanadate, oxidized bromide to a bromination-competent intermediate in phosphate buffer and physiological pH. This is in contrast to the requirement of acid medium with H2O2 as the oxidant. Addition ...
journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1994.1312
更新日期:1994-07-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:2009-06-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
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更新日期:2012-07-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2012-09-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2012.01.007
更新日期:2012-03-01 00:00:00
abstract::Incubation of rat hepatocytes with 5-aminoimidazole-4-carboxamide ribonucleoside (AICAR), an activator of the 5'-AMP-activated protein kinase (AMPK), produced a twofold stimulation of palmitate oxidation and of the activity of carnitine palmitoyltransferase I (CPT-I), together with a profound decrease of the activity ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.9784
更新日期:1997-01-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2005.09.008
更新日期:2005-11-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1016/j.abb.2014.07.023
更新日期:2014-12-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(91)90492-2
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(83)90144-3
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pub_type: 杂志文章
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1006/abbi.1999.1206
更新日期:1999-05-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1016/j.abb.2007.09.024
更新日期:2008-01-01 00:00:00
abstract::Swainsonine, a plant toxin, strongly inhibits certain alpha-D-mannosidases but has no effect on others [D. R. P. Tulsiani, T. M. Harris, and O. Touster (1982) J. Biol. Chem. 257, 7936-7939]. The reversible inhibition of jack bean and lysosomal alpha-D-mannosidases has previously been suggested to be similar in nature ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2001.2429
更新日期:2001-08-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2018.12.027
更新日期:2019-03-15 00:00:00
abstract::The antioxidant, butylated hydroxytoluene (BHT), causes lung toxicity in mice followed by regenerative repair, and can also modulate the development of carcinogen-induced lung adenomas. We are investigating changes in pulmonary biochemistry following BHT treatment in order to understand the mechanisms of BHT-induced p...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1987-07-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(90)90089-h
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90627-7
更新日期:1985-01-01 00:00:00
abstract::Stationary phase inocula were more susceptible to the growth inhibitory effect of paraquat than were log phase inocula and this difference was exacerbated in strains overproducing superoxide dismutases (SOD). Glucose-6-phosphate dehydrogenase (G-6-PD), a member of the soxR regulon, was induced by paraquat promptly in ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(92)90147-o
更新日期:1992-04-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(90)90234-p
更新日期:1990-04-01 00:00:00
abstract::Role of c-Src in muscle differentiation has been controversial. Here, we investigated if c-Src positively or negatively regulates muscle differentiation, using H9c2 and C2C12 cell lines. Inhibition of c-Src by treatment with PP1 and SU6656, pharmacologic inhibitors of Src family kinases, or by expression of a dominant...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2007.06.004
更新日期:2007-09-01 00:00:00