MTT.

ABSTRACTHerein we report an exploratory study based on the cytotoxicity and antiproliferative activity of four previously synthesized coumarins derivatives (compounds 1a-d). The cytotoxic effect of the compounds was assessed on mononuclear cells, which were obtained from blood samples of healthy donors and measured by XTT method. The antiproliferative activity experiments were developed using HeLa, CaSKi and SiHa cervical cancer cell lines, and was evaluated by the MTT assay. In every single experiment, Cisplatin as internal control was employed. The cytotoxic assessment revealed that the four compounds did not significantly affect the viability on normal cells, whereas the antiproliferative activity on cancer cells was variable, according to the substituent located at position 3 of the coumarin core. It is worth mentioning that compound 1c, compared with the other products, presented a remarkable effect against CaSKi cell line, likewise 1d but in HeLa cells. These findings suggest that there is a relationship between biological activity and the alkoxycarbonyl chain since this is the only structural difference among the four tested compounds. The results lead to conclude that butyl group which is the substituent in compound 1d, was the key element in the antiproliferative effect presented by the molecule against SiHa, CaSKi and HeLa cell lines. Keywords: Coumarins, Tumor cells, Mononuclear cells, Cis-Platin, Cytotoxicity, MTT.

The Robinia pseudoacacia (Fabaceae) is one of the medicinal plants, Native to North America, commonly distributed in various regions of Kashmir. The plant is used as an antispasmodium, febrifuge, antioxidant;diuretic, emollient, antitumor etc. The present study was carried out to evaluate the anticancer, antibacterial potentials of Robinia pseudoacacia along with the phytochemical screening of the major constituents of the aforesaid plant. The extracts of the Robinia pseudoacacia were phytochemically screened for the presence of Alkaloids, Flavonoids Saponins, Tannins, and Phenols. However the positive results for the detection of Flavonoids, Tannins and phenols were obtained. Further, the Methanolic extract of the same plant was evaluated for its anti-microbial activities where 100mg/ml of the extract showed between 12-19mm inhibitory zones on the test organism. The aforementioned plant’s ethanolic extract also showed anticancer activity against four cancer cell lines – C6, MFC, T47D and A549 using MTT assay.