Anethum graveolens (dill) – A medicinal herb induces apoptosis and cell cycle arrest in HepG2 cell line
2018
Abstract Ethnopharmacological relevance The medicinal herb,
Anethum graveolensL. (dill) is one of the potent culinary herbs used as an alternative form of medicine worldwide. The
unguenttopical Oil from the aerial parts of A. graveolens was found to be effective in the management of uterus cancer in
ethnomedicinehas been reported. Background The incidence and mortality rates of Hepatocellular carcinoma (HCC) are steadily rising worldwide, especially, in underdeveloped and developing countries. Moreover, HCC develops rapidly in patients with chronic cirrhosis or hepatitis, where the
solid tumours/malignancies coexist with the inflammation. Recent studies have shown that the medicinal herb,
Anethum graveolens, holds anticancer potential, which could be a promising approach for the treatment of various tumours. Aim In the current study, we have analysed the antiproliferative effect of ethyl acetate fraction of Dill Seeds (EAFD) on HepG2 cell line. Methods Cell viability and proliferation were observed by MTT assay; Morphological changes were studied using fluorescent stains like Hoechst 33342,
acridine orange/
ethidium bromideand JC-1 dye. Further, the pro-apoptotic activity was demonstrated through
Annexin-V-FITC/ PI assay and
cell cycle analysis. Different concentrations (0.1, 0.2, 0.4, 0.6, 0.8 mg / ml) of EAFD were studied. Results EAFD markedly suppressed the proliferation of HepG2 cells in a dose and time-dependent manner. The phase contrast and fluorescence microscopy revealed the morphological alterations like disruption, shrinkage, detachment and blebbing of cell membrane accompanied by nuclear condensation after exposure to EAFD. Radical scavenging activity was evidenced by measurement of ROS levels post-treatment. Modulation of mitochondrial membrane potential was exhibited leading to the activation of caspases 3/7 and 9 which is a
committed steptowards apoptosis.
AnnexinV-FITC/ PI assay and cell cycle, later confirmed the apoptosis and cell cycle arrest in ‘G2/M’ phase through flow cytometric analysis. Conclusion In conclusion, a significant apoptogenic effect was exhibited by EAFD against HepG2 cells in inducing apoptosis and cell cycle arrest. Our findings indicate that the medicinal herb-
Anethum graveolens, holds potential in treating hepatocellular carcinoma effectively.
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