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  • Title: Evaluation of the Cytotoxic Activity of Crocin and Safranal, Constituents of Saffron, in Oral Squamous Cell Carcinoma (KB Cell Line).
    Author: Jabini R, Ehtesham-Gharaee M, Dalirsani Z, Mosaffa F, Delavarian Z, Behravan J.
    Journal: Nutr Cancer; 2017; 69(6):911-919. PubMed ID: 28718677.
    Abstract:
    Crocin and safranal are active ingredients in the saffron. Some studies have demonstrated antitumor activities of saffron ingredients. The aim of this study was to evaluate cytotoxic effects of crocin and safranal in oral squamous cell carcinoma (KB cells) and NIH 3T3 cell line as nonmalignant cells. The cells were incubated with crocin and safranal at 37°C for 24, 48, and 72 h, and cell viability was quantitated by MTT assay. Apoptotic cells, cell cycle distribution, and sub-G1 fraction were determined using propidium iodide staining of DNA fragmentation by flow cytometry. Crocin (0.05-4 mM) and safranal (0.2-3.2 mM) significantly inhibited the growth of KB cells (the inhibitory growth effects of all concentrations for both were >50% after 72 h), while they had less inhibitory effects on NIH 3T3 cells viability. The IC50 values of crocin and safranal against NIH 3T3 cells after 72 h were determined as 2.8 and 0.3 mM, respectively. Crocin and safranal induced a sub-G1 peak in the flow cytometry histogram of treated cells compared to control cells indicating that apoptotic cell death is involved in the toxicity of crocin and safranal. Apoptotic effects of crocin and safranal in tumor cells were more than normal cells. Neither crocin nor safranal affected the cell cycle progression. Crocin and safranal exerted apoptotic effects in KB cell line.
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