Navegando por Assunto "Eugenia"

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Atividade antitumoral em células de câncer gástrico e atividade antioxidante de extratos de Eugenia patrisii vahl
(Universidade Federal do Pará, 2020-09-09) REIS, Herald Souza dos; AMARANTE, Cristine Bastos do; http://lattes.cnpq.br/4101983776191966; https://orcid.org/ 0000-0002-8602-8180; PRADO, Alejandro Ferraz do; http://lattes.cnpq.br/7016475842644161; https://orcid.org/ 0000-0001-7495-9837
Several antineoplastic drugs are natural origin or from derived compounds and plants are one of the primary sources of substances for this sort of drugs. Studies with Myrtaceae family plants, demonstrated several effects such as anticancer and antioxidant. A plant in this family that may have biological activities is Eugenia patrisii Vahl, popularly known as Ubaia-rubi-da-amazônia, a plant native to the Amazon Region. Therefore, the work objective was to evaluate the antitumor and antioxidant activity of hydroalcoholic extracts of the leaf and stem of the E. patrisii species. The chemical profile of the extracts was done using thin layer chromatography. The antioxidant activity was assessed by the DPPH test. For antitumor activity, a cell viability test was performed using the MTT method on gastric cancer lines (ACP02, ACP03 and AGP01) and normal lines (VERO and MN01). Gel zymography was also performed to assess the activity of MMP-2 and MMP-9. The data obtained were analyzed using the Graph Pad Prism program version 8.0. The tests used were variance analysis (ANOVA) and Test t Student, with p <0.05 being considered significant. The plates derived from thin layer chromatography showed presence of terpenes, flavonoids, phenolic compounds and absence of coumarins and alkaloids. The extracts were shown to have antioxidant capacity through the DPPH assay. In the cell viability test, the extracts showed a high potency against gastric tumor lines and did not affect the normal line. In addition, the leaf extract decreased MMP-2 and MMP-9 activity in gel. The extracts have terpenes, flavonoids and phenolic compounds that have an antioxidant activity of 82% compared to the standard and antitumor against gastric lines ACP03 and AGP01 with the potential to isolate compounds of pharmacological interest.