Induction of 12-lipoxygenase expression by epidermal growth factor is mediated by protein kinase C in A431 cells

Y. W. Liu, Y. Asaoka, H. Suzuki, T. Yoshimoto, S. Yamamoto, W. C. Chang

研究成果: 雜誌貢獻文章

23 引文 (Scopus)

摘要

Epidermal growth factor (EGF) increases 12-lipoxygenase mRNA by about 2- fold with a lag period of 4 to 8 hr, which precedes the increase in 12- lipoxygenase activity by 2 to 4 hr in human epidermoid carcinoma A431 cells. Induction of 12-lipoxygenase expression in human erythroleukemia cells by phorbol 12-myristate 13-acetate (PMA) has been reported previously. The present report describes a study of the involvement of protein kinase C (PKC) in EGF-induced 12-lipoxygenase expression in A431 cells. EGF-induced 12- lipoxygenase expression was inhibited by methyl 2,5-dihydroxycinnamate, a tyrosine kinase inhibitor. Staurosporine and calphostin C, which are two PKC inhibitors, inhibited EGF-induced enzyme activity and mRNA expression of 12- lipoxygenase. 1,2-Dioctanoyl-sn-glycerol (a membrane-permeant diacylglycerol) and PMA significantly induced enzyme activity and mRNA expression. Simultaneous treatment of cells with EGF and PMA did not exhibit an additive effect, suggesting that EGF and PMA share a common biochemical pathway in 12- lipoxygenase induction. Expression of mRNA for PKC α, δ and ζ was detected in A431 cells, whereas no mRNA expression for PKC β1, γ and ε was observed. Taken together, these results suggest that EGF-induced 12- lipoxygenase expression is at least in part mediated by the PKC signal transduction pathway.

原文英語
頁(從 - 到)567-573
頁數7
期刊Journal of Pharmacology and Experimental Therapeutics
271
發行號1
出版狀態已發佈 - 1994
對外發佈Yes

指紋

Arachidonate 12-Lipoxygenase
Epidermal Growth Factor
Protein Kinase C
Acetates
Messenger RNA
Leukemia, Erythroblastic, Acute
Staurosporine
Lipoxygenase
Protein C Inhibitor
Diglycerides
Enzymes
Protein Kinase Inhibitors
Protein-Tyrosine Kinases
Squamous Cell Carcinoma
Signal Transduction
Membranes
phorbol-12-myristate

ASJC Scopus subject areas

  • Pharmacology

引用此文

Induction of 12-lipoxygenase expression by epidermal growth factor is mediated by protein kinase C in A431 cells. / Liu, Y. W.; Asaoka, Y.; Suzuki, H.; Yoshimoto, T.; Yamamoto, S.; Chang, W. C.

於: Journal of Pharmacology and Experimental Therapeutics, 卷 271, 編號 1, 1994, p. 567-573.

研究成果: 雜誌貢獻文章

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abstract = "Epidermal growth factor (EGF) increases 12-lipoxygenase mRNA by about 2- fold with a lag period of 4 to 8 hr, which precedes the increase in 12- lipoxygenase activity by 2 to 4 hr in human epidermoid carcinoma A431 cells. Induction of 12-lipoxygenase expression in human erythroleukemia cells by phorbol 12-myristate 13-acetate (PMA) has been reported previously. The present report describes a study of the involvement of protein kinase C (PKC) in EGF-induced 12-lipoxygenase expression in A431 cells. EGF-induced 12- lipoxygenase expression was inhibited by methyl 2,5-dihydroxycinnamate, a tyrosine kinase inhibitor. Staurosporine and calphostin C, which are two PKC inhibitors, inhibited EGF-induced enzyme activity and mRNA expression of 12- lipoxygenase. 1,2-Dioctanoyl-sn-glycerol (a membrane-permeant diacylglycerol) and PMA significantly induced enzyme activity and mRNA expression. Simultaneous treatment of cells with EGF and PMA did not exhibit an additive effect, suggesting that EGF and PMA share a common biochemical pathway in 12- lipoxygenase induction. Expression of mRNA for PKC α, δ and ζ was detected in A431 cells, whereas no mRNA expression for PKC β1, γ and ε was observed. Taken together, these results suggest that EGF-induced 12- lipoxygenase expression is at least in part mediated by the PKC signal transduction pathway.",
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AU - Asaoka, Y.

AU - Suzuki, H.

AU - Yoshimoto, T.

AU - Yamamoto, S.

AU - Chang, W. C.

PY - 1994

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N2 - Epidermal growth factor (EGF) increases 12-lipoxygenase mRNA by about 2- fold with a lag period of 4 to 8 hr, which precedes the increase in 12- lipoxygenase activity by 2 to 4 hr in human epidermoid carcinoma A431 cells. Induction of 12-lipoxygenase expression in human erythroleukemia cells by phorbol 12-myristate 13-acetate (PMA) has been reported previously. The present report describes a study of the involvement of protein kinase C (PKC) in EGF-induced 12-lipoxygenase expression in A431 cells. EGF-induced 12- lipoxygenase expression was inhibited by methyl 2,5-dihydroxycinnamate, a tyrosine kinase inhibitor. Staurosporine and calphostin C, which are two PKC inhibitors, inhibited EGF-induced enzyme activity and mRNA expression of 12- lipoxygenase. 1,2-Dioctanoyl-sn-glycerol (a membrane-permeant diacylglycerol) and PMA significantly induced enzyme activity and mRNA expression. Simultaneous treatment of cells with EGF and PMA did not exhibit an additive effect, suggesting that EGF and PMA share a common biochemical pathway in 12- lipoxygenase induction. Expression of mRNA for PKC α, δ and ζ was detected in A431 cells, whereas no mRNA expression for PKC β1, γ and ε was observed. Taken together, these results suggest that EGF-induced 12- lipoxygenase expression is at least in part mediated by the PKC signal transduction pathway.

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