Umbelliprenin is cytotoxic against QU-DB large cell lung cancer cell line but anti-proliferative against A549 adenocarcinoma cells
Journal Title: DARU Journal of Pharmaceutical Sciences - Year 2012, Vol 20, Issue 0
Abstract
Umbelliprenin is a natural compound, belonging to the class of sesquiterpene coumarins. Recently, umbelliprenin has attracted the researchers' attention for its antitumor activities against skin tumors. Its effect on lung cancer is largely unknown. The aim of our study was to investigate the effects of this natural compound, which is expected to have low adverse effects, on lung cancer. Methods The QU-DB large cell and A549 adenocarcinoma lung cancer cell lines were treated with umbelliprenin. IC50 values were estimated using methyl thiazolely diphenyl-tetrazolium bromide (MTT) assay, in which a decrease in MTT reduction can occur as a result of cell death or cell proliferation inhibition. To quantify the rate of cell death at IC50 values, flow cytometry using Annexin V-FITC (for apoptotic cells), and propidium iodide (for necrotic cells) dyes were employed. Results Data from three independent MTT experiments in triplicate revealed that IC50 values for QUDB and A549 were 47 +/- 5.3 muM and 52 +/- 1.97 muM, respectively. Annexin V/PI staining demonstrated that umbelliprenin treatment at IC50 induced 50% cell death in QU-DB cells, but produced no significant death in A549 cells until increasing the umbelliprenin concentration to IC80. The pattern of cell death was predominantly apoptosis in both cell lines. When peripheral blood mononuclear cells were treated with 50 muM and less concentrations of umbelliprenin, no suppressive effect was observed. Conclusions We found cytotoxic/anti-proliferative effects of umbelliprenin against two different types of lung cancer cell lines.
Authors and Affiliations
Narges Khaghanzadeh, Zahra Mojtahedi, Nasrollah Erfani, Abbas Ghaderi, Mohammad Ramezani
Keywords
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