Evaluation of the Volatile Oil Composition and Antiproliferative Activity of Laurus nobilis L. (Lauraceae) on Breast Cancer Cell Line Models

Abu-Dahab, Rana; Kasabri, Violet; Afifi, Fatma Ulku
April 2014
Records of Natural Products;2014, Vol. 8 Issue 2, p136
Academic Journal
Volatile oil composition and antiproliferative activity of Laurus nobilis L. (Lauraceae) fruits and leaves grown in Jordan were investigated. GC-MS analysis of the essential oil of the fruits resulted in the identification of 45 components representing 99.7 % of the total oil content, while the leaf essential oil yielded 37 compounds representing 93.7% of the total oil content. Oxygenated monoterpene 1,8-cineole was the main component in the fruit and leaf oils. Using sulphorhodamine B assay; the crude ethanol fraction, among other solvent extracts, showed strong antiproliferative activity for both leaves and fruits, nevertheless, the fruits were more potent against both breast cancer cell models (MCF7 and T47D). At IC50 values; the mechanism of apoptosis was nevertheless different: where L. nobilis fruit proapoptotic efficacy was not regulated by either p53 or p21, L. nobilis leaf extract components enhanced the p53 levels substantially. In both extracts, apoptosis was not caspase-8 or Fas Ligand and sFas (Fas/APO-1) dependent. Our studies highlight L. nobilis as a potential natural agent for breast cancer therapy. Compared with non induced basal cells, both L. nobilis fruits and leaves induced a significant enrichment in the cytoplasmic mono- and oligonucleosomes after assumed induction of programmed MCF7 cell death.


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