Antiausterity Activity of Secondary Metabolites from the Roots of Ferula hezarlalehzarica against the PANC-1 Human Pancreatic Cancer Cell Line.

Human pancreatic cancer is one of the most aggressive types of cancer, with a high mortality rate. Due to the high tolerance of such cancer cells to nutrient starvation conditions, they can survive in a hypovascular tumor microenvironment. In this study, the dichloromethane extract of the roots of Ferula hezarlalehzarica showed potent preferential cytotoxic activity with a PC50 value of 0.78 µg/mL. Phytochemical investigation of this extract led to the isolation of 18 compounds, including one new sesquiterpenoid (6) and one new monoterpenoid (18). All isolated compounds were evaluated for their preferential cytotoxicity against PANC-1 human pancreatic cancer cells by employing an antiausterity strategy. Among them, ferutinin (2) was identified as the most active compound, with a PC50 value of 0.72 µM. In addition, the real-time effect of ferutinin (2) and compound 6 against PANC-1 cells, exposed to a nutrient-deprived medium (NDM), showed cell shrinkage, leading to cancer cell death within a short period of exposure. Compounds 2 and 6 also inhibited colony formation of PANC-1 cells. The present study indicates that the dichloromethane extract of the roots of F. hezarlalehzarica is a rich source of bioactive compounds for targeting PANC-1 cells.

Phytochemical composition, and cytotoxic, antioxidant, and antibacterial activity of the essential oil and methanol extract of Semenovia suffruticosa.

OBJECTIVE: In this study, our aim was to extract, and identify and quantify the chemical composition of essential oils of Semenovia suffruticosa grown in Kerman, Iran. Moreover, cytotoxic, antioxidant and antimicrobial activity of the essential oil and methanol extract of aerial parts of S. suffruticosa were reported. MATERIALS AND METHODS: GC and GC/MS analysis were used for identifying and quantifying the essential oil components. Antioxidant and antibacterial activity were tested by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and agar disc diffusion methods, respectively and MTT assay was used to determine the anti-proliferative potential of the oil against breast (MCF-7), colon (HT-29), neuroblastoma (SH-SY5Y), embryonal carcinoma (NCCIT) cancer cell relative to human umbilical vein endothelial cell (HUVEC) as a normal cell. Apoptosis induction was monitored by flow cytometry using PE annexin V apoptosis detection kit and cell cycle arrest was by with propidium iodide. RESULTS: Z-ß-ocimene (25.1%), linalool (17.8%) and ß-bisabolol (13.3%) were recognized as major components of the essential oil. Our study demonstrated apoptosis-inducing potential of essential oil on normal and cancer cells. However, methanol extract exerted cytotoxicity against a number of cancer cells and arrested cancer cells in G2/M phase; nevertheless, it did not exert strong cytotoxicity against normal cells. Furthermore, DPPH and disc diffusion results showed that while essential oil has considerable antiradical activity, methanol extract did not exert promising antioxidant and antimicrobial activity. CONCLUSION: Methanol extract of S. suffruticosa shows tumor-cell-specific cytotoxic properties and the essential oil demonstrated a strong antioxidant activity.