Inhibition of gap junctional Intercellular communication in WB-F344 rat liver epithelial cells by triphenyltin chloride through MAPK and PI3-kinase pathways

Chung-Hsun Lee, I. Hui Chen, Chia Rong Lee, Chih-Hsien Chi, Ming Che Tsai, Jin Lian Tsai, Hsiu Fen Lin

Research output: Contribution to journalReview article

5 Citations (Scopus)

Abstract

Background. Organotin compounds (OTCs) have been widely used as stabilizers in the production of plastic, agricultural pesticides, antifoulant plaints and wood preservation. The toxicity of triphenyltin (TPT) compounds was known for their embryotoxic, neurotoxic, genotoxic and immunotoxic effects in mammals. The carcinogenicity of TPT was not well understood and few studies had discussed the effects of OTCs on gap junctional intercellular communication (GJIC) of cells. Method. In the present study, the effects of triphenyltin chloride (TPTC) on GJIC in WB-F344 rat liver epithelial cells were evaluated, using the scrape-loading dye transfer technique. Results. TPTC inhibited GJIC after a 30-min exposure in a concentration- and time-dependent manner. Pre-incubation of cells with the protein kinase C (PKC) inhibitor did not modify the response, but the specific MEK 1 inhibitor PD98059 and PI3K inhibitor LY294002 decreased substantially the inhibition of GJIC by TPTC. After WB-F344 cells were exposed to TPTC, phosphorylation of Cx43 increased as seen in Western blot analysis. Conclusions. These results show that TPTC inhibits GJIC in WB-F344 rat liver epithelial cells by altering the Cx43 protein expression through both MAPK and PI3-kinase pathways.

Original languageEnglish
Article number17
JournalJournal of Occupational Medicine and Toxicology
Volume5
Issue number1
DOIs
Publication statusPublished - 2010 Jul 5

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Mitogen-Activated Protein Kinase Kinases
Inbred F344 Rats
Phosphatidylinositol 3-Kinases
Liver
Rats
Epithelial Cells
Organotin Compounds
Communication
communication
Connexin 43
Wood preservation
Proteins
Phosphorylation
2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one
Mammals
Protein C Inhibitor
Protein Kinase Inhibitors
Pesticides
Cell Communication
Protein Kinase C

All Science Journal Classification (ASJC) codes

  • Toxicology
  • Safety Research
  • Public Health, Environmental and Occupational Health

Cite this

@article{9d5f3478298c45628b7a47e16ddb87a6,
title = "Inhibition of gap junctional Intercellular communication in WB-F344 rat liver epithelial cells by triphenyltin chloride through MAPK and PI3-kinase pathways",
abstract = "Background. Organotin compounds (OTCs) have been widely used as stabilizers in the production of plastic, agricultural pesticides, antifoulant plaints and wood preservation. The toxicity of triphenyltin (TPT) compounds was known for their embryotoxic, neurotoxic, genotoxic and immunotoxic effects in mammals. The carcinogenicity of TPT was not well understood and few studies had discussed the effects of OTCs on gap junctional intercellular communication (GJIC) of cells. Method. In the present study, the effects of triphenyltin chloride (TPTC) on GJIC in WB-F344 rat liver epithelial cells were evaluated, using the scrape-loading dye transfer technique. Results. TPTC inhibited GJIC after a 30-min exposure in a concentration- and time-dependent manner. Pre-incubation of cells with the protein kinase C (PKC) inhibitor did not modify the response, but the specific MEK 1 inhibitor PD98059 and PI3K inhibitor LY294002 decreased substantially the inhibition of GJIC by TPTC. After WB-F344 cells were exposed to TPTC, phosphorylation of Cx43 increased as seen in Western blot analysis. Conclusions. These results show that TPTC inhibits GJIC in WB-F344 rat liver epithelial cells by altering the Cx43 protein expression through both MAPK and PI3-kinase pathways.",
author = "Chung-Hsun Lee and Chen, {I. Hui} and Lee, {Chia Rong} and Chih-Hsien Chi and Tsai, {Ming Che} and Tsai, {Jin Lian} and Lin, {Hsiu Fen}",
year = "2010",
month = "7",
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doi = "10.1186/1745-6673-5-17",
language = "English",
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Inhibition of gap junctional Intercellular communication in WB-F344 rat liver epithelial cells by triphenyltin chloride through MAPK and PI3-kinase pathways. / Lee, Chung-Hsun; Chen, I. Hui; Lee, Chia Rong; Chi, Chih-Hsien; Tsai, Ming Che; Tsai, Jin Lian; Lin, Hsiu Fen.

In: Journal of Occupational Medicine and Toxicology, Vol. 5, No. 1, 17, 05.07.2010.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Inhibition of gap junctional Intercellular communication in WB-F344 rat liver epithelial cells by triphenyltin chloride through MAPK and PI3-kinase pathways

AU - Lee, Chung-Hsun

AU - Chen, I. Hui

AU - Lee, Chia Rong

AU - Chi, Chih-Hsien

AU - Tsai, Ming Che

AU - Tsai, Jin Lian

AU - Lin, Hsiu Fen

PY - 2010/7/5

Y1 - 2010/7/5

N2 - Background. Organotin compounds (OTCs) have been widely used as stabilizers in the production of plastic, agricultural pesticides, antifoulant plaints and wood preservation. The toxicity of triphenyltin (TPT) compounds was known for their embryotoxic, neurotoxic, genotoxic and immunotoxic effects in mammals. The carcinogenicity of TPT was not well understood and few studies had discussed the effects of OTCs on gap junctional intercellular communication (GJIC) of cells. Method. In the present study, the effects of triphenyltin chloride (TPTC) on GJIC in WB-F344 rat liver epithelial cells were evaluated, using the scrape-loading dye transfer technique. Results. TPTC inhibited GJIC after a 30-min exposure in a concentration- and time-dependent manner. Pre-incubation of cells with the protein kinase C (PKC) inhibitor did not modify the response, but the specific MEK 1 inhibitor PD98059 and PI3K inhibitor LY294002 decreased substantially the inhibition of GJIC by TPTC. After WB-F344 cells were exposed to TPTC, phosphorylation of Cx43 increased as seen in Western blot analysis. Conclusions. These results show that TPTC inhibits GJIC in WB-F344 rat liver epithelial cells by altering the Cx43 protein expression through both MAPK and PI3-kinase pathways.

AB - Background. Organotin compounds (OTCs) have been widely used as stabilizers in the production of plastic, agricultural pesticides, antifoulant plaints and wood preservation. The toxicity of triphenyltin (TPT) compounds was known for their embryotoxic, neurotoxic, genotoxic and immunotoxic effects in mammals. The carcinogenicity of TPT was not well understood and few studies had discussed the effects of OTCs on gap junctional intercellular communication (GJIC) of cells. Method. In the present study, the effects of triphenyltin chloride (TPTC) on GJIC in WB-F344 rat liver epithelial cells were evaluated, using the scrape-loading dye transfer technique. Results. TPTC inhibited GJIC after a 30-min exposure in a concentration- and time-dependent manner. Pre-incubation of cells with the protein kinase C (PKC) inhibitor did not modify the response, but the specific MEK 1 inhibitor PD98059 and PI3K inhibitor LY294002 decreased substantially the inhibition of GJIC by TPTC. After WB-F344 cells were exposed to TPTC, phosphorylation of Cx43 increased as seen in Western blot analysis. Conclusions. These results show that TPTC inhibits GJIC in WB-F344 rat liver epithelial cells by altering the Cx43 protein expression through both MAPK and PI3-kinase pathways.

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SN - 1745-6673

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