Title:Leaf Extract of Nerium oleander L. Inhibits Cell Proliferation, Migration and Arrest of Cell Cycle at G2/M Phase in HeLa Cervical Cancer Cell
Volume: 21
Issue: 5
Author(s): Shubhasmita Mohapatra, Anil K. Biswal, Jagnehswar Dandapat and Priya R. Debata*
Affiliation:
- P.G. Department of Zoology, North Orissa University, Takatpur, Baripada, Mayurbhanj, Odisha, 757003,India
Keywords:
Nerium oleander, HeLa cells, MTT assay, G2/M phase arrest, cell migration, antioxidant.
Abstract:
Background: Cervical cancer is one of the most common gynaecological malignant tumors reported
in women. Although a number of early screening and treatment options are available, mortality due to cervical
cancer remains high. Nerium oleander L. is a potential medicinal plant that possesses a wide spectrum of pharmacological
and physiological activities including anticancer activities.
Objective: This study aims to evaluate the antiproliferative activity, inhibition of cell migration and cell cycle
arrest by the chloroform extract of leaves of Nerium Oleander L. in HeLa cervical cancer cells. The chloroform
extract of Catharanthus roseus which contains anti-cancer compounds, Vinblastin and Vincristin, was used as a
positive control for this study.
Methods: The chloroform extracts of Nerium oleander L. and Catharanthus roseus were prepared using the
standard protocol. The cytotoxic effects were studied by MTT assay. Cell migration was studied by in vitro
scratch assay. Analysis of the cell cycle was carried out by Propidium iodide staining and Flow Cytometry. The
expression level of various proteins was evaluated by immunocytochemistry.
Results: In this study, we showed that the leaf extract of Nerium oleander inhibited the growth of HeLa cervical
cancer cells in culture and inhibited cell migration. Besides, it arrested the cell cycle at the G2/M phase. The
Epidermal Growth Factor Receptor (EGFR) expression and phosphorylated p-Rb (Ser 780) level were significantly
downregulated by leaf extract of Nerium oleander.
Conclusion: The extract of Nerium oleander L. contains potential bioactive compounds that inhibit HeLa cell
proliferation, cell migration and arrest cell cycle at the G2/M phase.