Combination Effect of N-Hexane Extract of Plectranthus amboinicus (Lour.) Spreng. with Doxorubicin Againts HeLa Cell Lines

Poppy Anjelisa Z. Hasibuan, Rosidah Rosidah


The study was aimed to investigate the growth inhibiting effect of Plectranthus amboinicus, (Lour.) Spreng n-hexane extract (PAN) in combination with doxorubicin againts HeLa cell Lines, to observe the apoptotic induction and immunocytochemistry of HeLa cell Lines on cyclin D1, Bcl-2, and Cox-2 after treatment of PAN. The percentage viability of the cell were carried out by using MTT [3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide] assay. The effect of apoptosis was observed by flowcytometry assay in single dose of PAN. The expression of cyclin D1, Bcl2 and COX-2 proteins were investigated on HeLa cell lines by using immunocytochemistry. The result showed that PAN showed strong synergistic effect with doxorubicin againts HeLa cells based on Combination Index analysis. No significant apoptotic induction of PAN in HeLa cell lines, but the extract caused necrosis. The immunocytochemical study showed suppression of cyclin D1, Bcl2 and COX-2 expression on HeLa cell lines. The results concluded that PAN could be a potential co-chemoterapeutic agent with doxorubicin on cervix cancer cells but need to be explored further by its combination on specific molecular target.

Keywords : Plectranthus amboinicus, (Lour.) Spreng., combination, HeLa cell lines

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