Abstract
Epidermal growth factor (EGF) and its receptor (EGFR) as well as the EGFR-coupled Ras > Raf > MEK > ERK pathway are known to affect the survival of cancer cells upon chemotherapeutic treatment. In the present investigation, we analyzed the role of EGFR signaling pathways for the activity of artesunate towards cancer cells. The microarray-based mRNA expression of genes involved in EGFR signaling pathway was correlated with the 50% inhibition concentrations (IC50) of 55 tumor cell lines for artesunate. The log10IC50 values were in a range of -6.609 to -4.0M. Candidate genes identified by this approach were then experimentally validated by transfecting cell lines with corresponding cDNA vectors and treating them with artesunate. Indeed, we observed that the Ras > Raf > MEK > ERK pathway is an important signaling route for the response of tumor cells to artesunate. As exemplarily shown for artesunate, the application of such a combined approach to identify signal transduction pathways involved in the response of tumor cells to cytotoxic compounds might foster the development of novel molecular targeted therapies for cancer treatment.
Keywords: Artesunate, cancer, chemotherapy, EGFR, molecular pharmacology, natural products
Current Cancer Drug Targets
Title: The Role of Downstream Signaling Pathways of the Epidermal Growth Factor Receptor for Artesunates Activity in Cancer Cells
Volume: 9 Issue: 1
Author(s): V. Badireenath Konkimalla, James A. McCubrey and Thomas Efferth
Affiliation:
Keywords: Artesunate, cancer, chemotherapy, EGFR, molecular pharmacology, natural products
Abstract: Epidermal growth factor (EGF) and its receptor (EGFR) as well as the EGFR-coupled Ras > Raf > MEK > ERK pathway are known to affect the survival of cancer cells upon chemotherapeutic treatment. In the present investigation, we analyzed the role of EGFR signaling pathways for the activity of artesunate towards cancer cells. The microarray-based mRNA expression of genes involved in EGFR signaling pathway was correlated with the 50% inhibition concentrations (IC50) of 55 tumor cell lines for artesunate. The log10IC50 values were in a range of -6.609 to -4.0M. Candidate genes identified by this approach were then experimentally validated by transfecting cell lines with corresponding cDNA vectors and treating them with artesunate. Indeed, we observed that the Ras > Raf > MEK > ERK pathway is an important signaling route for the response of tumor cells to artesunate. As exemplarily shown for artesunate, the application of such a combined approach to identify signal transduction pathways involved in the response of tumor cells to cytotoxic compounds might foster the development of novel molecular targeted therapies for cancer treatment.
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Cite this article as:
Konkimalla Badireenath V., McCubrey A. James and Efferth Thomas, The Role of Downstream Signaling Pathways of the Epidermal Growth Factor Receptor for Artesunates Activity in Cancer Cells, Current Cancer Drug Targets 2009; 9 (1) . https://dx.doi.org/10.2174/156800909787314020
DOI https://dx.doi.org/10.2174/156800909787314020 |
Print ISSN 1568-0096 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5576 |
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