Online ISSN: 2515-8260

Keywords : MTT assay

In-Vitro Anti-Proliferative Effect Of Flavonoid Extract Of Amaranthus Viridis (Kolitis) Leaves Against MCF-7 Breast Adenocarcinoma Cell Line

Allysa Camille M. Malicdem; Michkaella Lorena O. Aducal; Jireh C. Cuasay; Denise Ansherina A. Dalisay; Alexander I. Mendoza; Glenda Marie E. Napiza; Carina R. Magbojos; Oliver Shane R. Dumaoal

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 4129-4140

Cancer is one of the major concerns in health and medicine. Studies have been done by previous researches on the medicinal value of flavonoids present in Amaranthus viridis. However, limited claims were available in terms of their anti-proliferative ability against cancer cells. Flavonoid extracts were prepared by semi-purification using ethanol and ethyl acetate. Phytochemical screening using UV-Vis spectrophotometry was used to verify the presence of flavonoids. MTT cytotoxicity assay using MCF-7 breast cancer cells was employed to determine the cytotoxic effect of the plant extract. Four concentrations of the extract of A. viridis leaves were used as treatment to cultured cells. Doxorubicin and DMSO were used as the positive and negative control, respectively. An inhibition concentration (IC50) of 18.33 ug/mL of the extract was reported after the assay, indicating that the administration of the treatment caused the death of the cells as seen when the yellow dye was not reduced into a purple formazan. Statistical analysis on the IC50 of doxorubicin and the A. viridis extract showed significant relationship, which indicated that doxorubicin has a more potent cytotoxic activity, though the extract had promising effects as seen in its IC50 being less than 30 ug/mL. These results can be attributed to the presence of the flavonoid quercetin which has been found out to possess cytotoxic effects against cancer cells. With these findings, a more natural, less toxic, cost-efficient and more readily available treatment regimen can be utilized for the management of cancer.

Evaluation of Anticancer effect of Ethanolic extract of Lepidagathis pungens Nees., Whole Plant By MTT Assay- An In Vitro Study

Manoharan Dhanalakshmi; Subramaniam AnandaThangadurai

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 8, Pages 1027-1038

Extracts from natural products, especially plants, have served as a valuable source of diverse molecules in many drug discovery efforts and led to the discovery of several important drugs. Lepidagathis pungens Nees., (L.pungens) is a herb of tropical Asia belonging to the family Acanthaceae. The present study deals with the in vitro anticancer activity of ethanolic extract of L.pungens against L6, Ehrlich Ascites Carcinoma (EAC), human breast cancer cells ( MCF 7), human cervical cells (He La) and human hepatocellular carcinoma cell lines (Hep G2). MTT assay was used to assess the in vitro anticancer activity. The extract at various doses were treated against all the cell lines. The parameters analyzed were percentage of cytotoxicity, percentage of cell viability and IC50 values. In results the ethanolic extract of L.pungens showed more potent activity against MCF 7 and EAC cell lines but moderate activity against He La and Hep G2 cell lines. The anticancer nature of the ethanolic extract is due to the presence of phytoconstituents like flavanoids, alkaloids, phenolic compounds, terpenoids, etc. However, further indepth studies are required before final conclusion on the mechanisms involved could be drawn to explain the observed activity. In conclusion, the ethanolic extract of L.pungens possess anticancer activity against various types of cancer cells, correlated to their total phenolic content.

Cytotoxic evaluation of directly 3D printed aligners and Invisalign

S Fayyaz Ahamed; S Mohnish Kumar; R K Vijaya kumar,; A S Apros Kanna; K Indrapriya dharshini

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 5, Pages 1129-1140

Background: Direct 3D printing of aligner trays involve printable materials; the study aims to investigate the in-vitro cytotoxicity of the direct-printed aligner using photopolymer resins and SmartTrackInvisalign tray for varying time intervals on 3T3 mice fibroblast cells using MTT assay.
Materials and Methods: Directed printed aligner trays using two 3D printing materials with SmartTrackInvisalign tray were compared in this study. Samples were placed in Dulbecco’s Modified Eagle’s Medium (DMEM; 0.1 mg/mL) for 1,3,5& 7 days interval. Cell viability percentage was calculated, and data were analyzed using a one-way analysis of variance and post hoc tests (α = 0.05).
Results: All materials exhibited slight cytotoxicity on MFCs with a visible trend of a significant increase in cell viability from day 1 to 7. Among the groups, the higher cytotoxicity was by E-Guard clear, and Dental LT, and the least cytotoxicity by Smartrack material. The highest level of cell viability and no cytotoxicity was exhibited by Invisalign (94.07% ± 3.00 of cell viability) at day 7. No statistically significant difference in viability percentage was seen between Dental LT and E-Guard material.
Conclusions: SmartTrackInvisalign material (polyurethane) was found to be more biocompatible, followed by directly printed aligner materials (polymethylmethacrylate). Cytotoxicity was found to be more on the first day for all materials and gradually decreases as day’s progress. The results indicate the increased leaching of material during the initial period of use though the level of cytotoxicity is slight.