Clarification of the mechanism of structural change induced by reoxygenation following the induction of lipid peroxidation in Caco-2 cell monolayers.
Clarification of the mechanism of structural change induced by reoxygenation following the induction of lipid peroxidation in Caco-2 cell monolayers.
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阐明 Caco-2 细胞单层中诱导脂质过氧化后,再氧合诱导的结构变化机制。
DOI:
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发表时间:
2002
影响因子:
2.1
通讯作者:
M. Hayashi
中科院分区:
文献类型:
--
作者:
M. Tomita;Mayuko Nagira;M. Haga;M. Hayashi
Recently, we established a system for assessing ischemia/reperfusion injury, specifically the opening of tight junctions (TJ), caused by reoxygenation following the induction of lipid peroxidation by tertiary-butylhydroperoxide (t-BuOOH), using the human intestinal epithelial cell line Caco-2 in order to focus on the barrier function of the epithelium independent of the vascular compartment. In the present study, we attempted to identify factors involved in the structural changes induced by reoxygenation using 0.5 mM t-BuOOH in Caco-2 cell monolayers. Glutathione (GSH) and N-acetylcystein, a precursor of GSH, inhibited the opening of TJ evoked by reoxygenation following the induction of lipid peroxidation by 0.5 mM of t-BuOOH. Tiron, as a cell permeable superoxide anion scavenger and deferoxamine, an iron-chelating agent ameliorated the opening in a dose-dependent manner. Also, Tiron suppressed the apical-to-basal and basal-to-apical permeability of the increased Rhodamine123 by reoxygenation in a concentration-dependent manner. These results collectively suggest that superoxide anion and iron ions play an important role or contribute to structural changes such as the opening of TJ induced by reoxygenation following the induction of lipid peroxidation by 0.5 mM t-BuOOH.
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DOI:
10.1016/s0304-4165(98)00072-5
发表时间:
1998
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Menconi,MJ;Unno,N;Smith,M;Aguirre,DE;Fink,MP
通讯作者:
Fink,MP
影响因子:
37.8
作者:
Yi-wu Xie;M. Wolin
通讯作者:
Yi-wu Xie;M. Wolin
影响因子:
29.4
作者:
KUBES, P;HUNTER, J;GRANGER, DN
通讯作者:
GRANGER, DN
DOI:
10.1152/ajpheart.1999.277.6.h2240
发表时间:
1999-12-01
影响因子:
4.8
作者:
Becker, LB;Vanden Hoek, TL;Schumacker, PT
通讯作者:
Schumacker, PT
DOI:
10.1152/ajpgi.1983.245.2.g285
发表时间:
1983
期刊:
The American journal of physiology
影响因子:
--
作者:
Parks,DA;Granger,DN
通讯作者:
Granger,DN