Background: Secondary metabolites from the group of isoprenoid compounds are widely distributed in mangrove plants. Polyisoprenoids (dolichol and polyprenol) are known to have benefits as anticancer agents. The present study was conducted to determine the cytotoxic potential of polyisoprenoids in leaves from seventeen selected mangrove species against colon cancer (WiDr) cells. Methods: Cytotoxic activity was evaluated by MTT assay in vitro using WiDr human colon cancer cells and 3T3 fibroblasts from Swiss albino mouse embryo tissue as controls. Mechanisms of action were approached by assessing apoptosis and the cell cycle using flow cytometry and fluorescence microscopy with annexin V-FITC, as well as expression of Bcl-2 and cyclin D1 by immunocytochemistry. Results: Polyisoprenoids from N. fruticans leaves demonstrated the highest anticancer activity, with an IC 50 of 180.2 µg/mL, as compared to 397.7 µg/mL against 3T3 normal cells. Significant decrease in the expression of Bcl-2 and cyclin D1 was also noted, facilitating apoptosis and arrest of the cell cycle in the G0-G1 phase in WiDr cells. The present study showed for the first time that polyisoprenoids from N. fruticans exhibit concrete anticancer activity in vitro, decreasing cell proliferation and inducing apoptosis in colon cancer cells. Conclusions: Polyisoprenoids isolated from N. fruticans leaves may have promise as a source of anticancer agents.
Objective: The objective of the study was to investigate the inhibitory activity of polyisoprenoids from Nypa fruticans leaves on the expression of cyclooxygenase 2 (COX-2) against colon cancer cells.Methods: Anticancer activity performed was tested by dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method on colon cancer cell WiDr. The expression of COX-2 was observed by the immunocytochemistry method.Result: Polyisoprenoids from N. fruticans leaves exhibit anticancer activity on WiDr cells through inhibition of COX-2 expression with IC50 180.186±7.16 μg/ml.Conclusions: This study showed that polyisoprenoids from N. fruticans leaves promise chemopreventive agents for colon cancer through COX-2 inhibition.
The mangrove plant is known to produce secondary metabolite compounds, mainly isoprenoids. Polyisoprenoids (dolichol and polyprenol) are known to have antimicrobial, anticancer and antiviral activity. Therefore, this study aimed to determine the cytotoxic effects of polyisoprenoids from Rhizophora mucronata and Ceriops tagal leaves by evaluating the induction of apoptosis and cell cycle arrest and the inhibition of the expression of Bcl-2 and cyclin D1 in WiDr colon cancer cells. Cell death was determined based on IC 50 values in MTT assays. The induction of apoptosis and alterations in the cell cycle were observed by flow cytometry. The expression of Bcl-2 and cyclin D1 proteins, which play a role in apoptosis and cell cycle regulation, was observed by immunocytochemistry. The results showed that polyisoprenoids from R. mucronata and C. tagal leaves exhibited toxicity against the WiDr cell line, with IC 50 values of 278 ± 5.77 and 276 ± 9.54 µg/mL, respectively. Polyisoprenoids from R. mucronata and C. tagal leaves significantly induced apoptosis and caused cell cycle arrest in G0/G1 phase, while also decreasing the expression of Bcl-2 and cyclin D1. Our results confirmed that polyisoprenoids from R. mucronata and C. tagal leaves have the potential to be developed as anticancer agents for colon cancer.
Background: The skin is the organ that covers the entire human body and serves to protect the body from outside influences, so that the skin needs to be protected. The process of destruction of the skin characterized by the appearance of wrinkles, dried and cracked. Skin damage can occur due to the sun's rays. Antioxidants are needed to prevent, inhibit structural damage of the skin. This study aims to determine the best concentration from a combination of Clitoria ternatea L. flower extract and dragon fruit (Hylocereus Polyrhizus (F.A.C. Weber) Britton & Rose) peel extract in lotion formulation. The research was conducted by making extract preparation and formulate in lotion by differentiating its concentration F1 (5%:5%), F2 (3%:6%), F3 (7%:3.5%). The results: Lotion of combination Clitoria ternatea L flower and dragon fruit peel extract with concentration F3 (7%:3.5%), showed the best effect, because it gives higher moisture increase compared to initial conditions, from to 32.6% become 65.2% after 4 weeks of usage. The conclusion: Combination Clitoria ternatea L. flower and dragon fruit peel extract can be formulated as a moisturizing lotion and with best combination in 7%: 3.5%.
Keywords: Lotion, Combination, Extract, Flower Clitoria ternatea , Dragon Fruit Peels
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