Evaluation of anticancer activity of water and juice extracts of young Hordeum vulgare in human cancer cell lines HT-29 and A549
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Departament of Virology and Immunology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University
Department of Medical Biology, Institute of Rural Health, Lublin, Poland
Ann Agric Environ Med. 2017;24(2):345–349
Introduction and objective:
Barley (Hordeum vulgare L.) is known as a rich source of different bioactive compounds. At present, considerable attention of researchers is focused on young barley grass. It can be a good source of dietary minerals, vitamins, carbohydrates, amino acids, phenolic compounds and proteins. It is possible that the composition of chemical ingredients beneficial for health may induce an anticancer potential of young barley in human colon adenocarcinoma (HT-29) and human lung adenocarcinoma (A549) cell lines.

Material and Methods:
Hordeum vulgare water extract (HWE) and Hordeum vulgare juice extract (HJE) were prepared. Cell proliferation and viability were examined with the use of MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and NR (neutral red) methods. Induction of necrosis was assessed by propidium iodide/Hoechst staining. Progress of the cell cycle involved in cell proliferation, apoptosis, and regulation of transcription was estimated using flow cytometry analysis. Additionally, the capability of free radical scavenging was evaluated with the DPPH assay.

The study revealed that extracts inhibited the proliferation of cancer cells. The NR study confirmed the low cytotoxic activity of the tested extracts to normal human colon epithelial cells (CCD 841 CoTr) and human skin fibroblasts (HSF). Furthermore, a dose-dependent cytotoxicity against HT-29 cells, but not A549 cells, has been reported. The free radical scavenging activity was observed in the case of the HWE but not the HJE.

The obtained results indicate a cancer chemopreventive potential of young barley as a safe dietary agent in colon carcinoma.

Arkadiusz Czerwonka   
Departament of Virology and Immunology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University
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