Use of transepithelial electrical resistance in the study of pentachlorophenol toxicity

被引：16

作者：

Velarde, G ^{[1
]}

Ait-Aissa, S ^{[1
]}

Gillet, C ^{[1
]}

Rogerieux, F ^{[1
]}

Lambre, C ^{[1
]}

Vindimian, E ^{[1
]}

Porcher, JM ^{[1
]}

机构：

[1] INERIS, Lab Biochim & Toxicol In Vitro, F-60550 Verneuil En Halatte, France

来源：

TOXICOLOGY IN VITRO | 1999年 / 13卷 / 4-5期

关键词：

CaCo-2; transepithelial electrical resistance; pentachlorophenol; cytotoxicity;

D O I：

10.1016/S0887-2333(99)00048-X

中图分类号：

R99 [毒物学（毒理学）];

学科分类号：

100405 ;

摘要：

The toxicity of pentachlorophenol (PCP), a polluting substance believed to exert a narcotic effect, was assayed using the Caco-2 cell line as a model. In order to assess this toxicity as fully as possible, several viability tests, each examining different endpoints, have been used. Neutral red uptake was found to be more sensitive to PCP than MTT and Alamar Blue tests. Transepithelial electrical resistance (TEER) was shown to be the most sensitive to PCP at concentrations and exposure times where the Alamar Blue, LDH leakage and Blue Dextran passage did not evidence any effect. Blue Dextran passage and optical microscopy revealed cellular detachment at concentrations where LDH and Alamar Blue showed little or no cytotoxicity. Thus, PCP seems to affect the integrity of the intestinal barrier at levels where no cytotoxicity is seen. Our results support the notion that TEER can be used as a very sensitive method for evaluating membrane-perturbing toxicants. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：723 / 727

页数：5

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