Effects of Calophyllum inophyllum fruit extract on the proliferation and morphological characteristics of human breast cancer cells MCF-7

To evaluate the antiproliferative activity of Calophyllum inophyllum (C. inophyllum) fruit extract against human breast cancer cells MCF-7. The cytotoxic effect of C. inophyllum fruit extract against MCF-7 cancer cells was evaluated through MTT and CyQuant assays for 24 h and the morphological investigation of treated MCF-7 cells was observed under optical microscope using Giemsa staining. The cytotoxic effect of C. inophyllum fruit extract against MCF-7 cancer cells was evaluated through MTT and CyQuant assays simultaneously for 24 h after treatment, which demonstrated the inhibition of cell viability with the IC50 values of 19.63 μg/mL and 27.54 μg/mL, respectively. The preliminary time-based morphological investigation of MCF-7 cells treated with the IC50 value (23.59 μg/mL) of C. inophyllum fruit extract was observed under an optical microscopy via Giemsa staining, which exhibited prominent histological characteristics of apoptosis. This study clearly proved that the proliferation of human breast cancer cell MCF-7 was inhibited by C. inophyllum fruit extract resulted from the induction of apoptosis in MCF-7 cells.