Current Signal Transduction Therapy

György Kéri
Vichem Chemie Research Ltd 
1022. Herman O. u. 15


Brefeldin A Inhibits Cancer Stem Cell Properties in Human Lung Cancer Cells

Author(s): Chao-Neng Tseng, Chung-Lung Cho, Tzan-Wen Chen, Chien-Chih Chiu, Hsueh-Wei Chang, Fang-Rong Chang, Yung-Fu Chang.


Brefeldin A (BFA) is an fungal antibiotic that induces ER stress in eukaryotic cells. Cancer stem cells (CSCs) have indefinite potential for self-renewal and the capability to drive tumorigenesis. The effects of BFA on CSCs have not been fully investigated. In this article we investigated the inhibitory effects of BFA on human lung cancer A549 and H1299 cells. Cytotoxicity toward suspension cultures has been used as a method for the preliminary screening of drugs targeting CSCs. We showed that BFA effectively reduced the survival of suspension A549 cells (EC50 =~30 ng/ml) by inducing apoptosis, and inhibited the clonogenic activity of A549 and H1299 CSCs at the same concentration range. We also demonstrated that BFA reduced the migration ability of A549 and H1299 cells. These results suggest that BFA can effectively suppress the progression of lung cancer during tumorigenesis and metastasis. The results of this study may help develop novel therapy for future treatment of lung cancer.

Keywords: Apoptosis, Brefeldin A, cancer stem cell, clonogenesis, lung cancer, migration.

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Article Details

Year: 2013
Page: [113 - 118]
Pages: 6
DOI: 10.2174/15743624113086660005
Price: $58