The cytotoxicity effect and identification of bioactive compounds of Prismatomeris glabra crude leaf extracts against breast cancer cells

Despite the fact that natives of Southeast Asia have been consuming Prismatomeris glabra for decades for a variety of health benefits, research on this species is not as extensive as that on other species due to its limited distribution. The purpose of this study was to determine the cytotoxicity and identify the bioactive compounds of P. glabra crude leaf extracts against the MCF-7 cell line. We first examined the potential cytotoxic activity of P. glabra using the MTT assay against the MCF-7 cell line to determine the IC50 of the plant extracts at various concentrations at three time points (24 h, 48 h, and 72 h). Across all time points, the MTT assay revealed that the aqueous extract exhibited the lowest IC50 values (p < 0.05) compared to the ethanol and methanol extracts. All plant extracts exerted the ability to induce cell death in the MCF-7 cell line at all time points, and the optimal time for P. glabra to manifest its antiproliferative activities and promote cell death was 48 h. LC–MS analysis was conducted to reveal the components in plant extracts. Forty compounds were discovered in P. glabra's extracts, with the majority being flavonoids and triterpenoids. Five similar compounds were present in all three extracts. Further research should be conducted on these compounds to unveil a compound that fulfils the criteria as a promising anticancer agent. This research is of the utmost importance, as it provides a fundamental framework for the identification of alternative therapies for breast cancer and contributes implicitly to the development of new drugs. This study discovered that P. glabra crude leaf extracts have the potential to inhibit the MCF-7 cell line by inducing cell death.