Isolation, in vitro and in silico Evaluation of Phenylethanoid Glycoside from Arrabidaea brachypoda as Lipoxygenase Inhibitor
AUTOR(ES)
Bertanha, Camila S.; Gimenez, Valéria M. M.; Furtado, Ricardo A.; Tavares, Denise C.; Cunha, Wilson R.; Silva, Márcio L. A. e; Januario, Ana H.; Borges, Alexandre; Kawano, Daniel F.; Parreira, Renato L. T.; Pauletti, Patrícia M.
FONTE
J. Braz. Chem. Soc.
DATA DE PUBLICAÇÃO
2020-04
RESUMO
Lipoxygenase (LOX) plays an important role in inflammatory processes and Arrabidaea brachypoda (DC.) Bureau (Bignoniaceae) has been described as presenting anti-inflammatory activity. Therefore, the objective of this study was to develop a high-performance liquid chromatography (HPLC) procedure to directly recognize LOX inhibitor compounds in A. brachypoda crude extract, facilitating the isolation, characterization of bioactive compounds, evaluation of natural compounds using an in vitro 15-LOX assay and prediction of the most probable binding modes of their main constituent through molecular docking simulations. The chemical analysis was performed by ethanol crude extract microfractionation using HPLC-DAD (diode array detector) associated to a fraction collector. The bioactive chromatogram displayed a peak with 50.9% LOX inhibition at 13.6 min retention time. The extract was purified and conandroside was isolated, presenting a LOX inhibitory activity with an inhibitory concentration (IC50) of 7.8 ± 1.1 µM, close to standard quercetin (IC50 7.6 ± 0.3 µM). Additionally, conandroside was not cytotoxic to normal cells (GM07492A). The LOX-conandroside complex displayed a slightly higher docking score (92.7) than quercetin (71.5). These results together suggest that conandroside could be explored as lipoxygenase inhibitor.
Documentos Relacionados
- Isolation, in silico characterization and chromosomal localization of a group of cDNAs from ciliated epithelial cells after in vitro ciliogenesis
- Isolation, Purification and Evaluation of Antibacterial Agents from Aloe vera
- Oleanane-type triterpenoid: an anti-inflammatory compound of the roots Arrabidaea brachypoda
- Isolation, purification, and in vitro characterization of recessive-lethal-mutant RNA polymerases from Escherichia coli.
- Essential Oils from Croton Species: Chemical Composition, in vitro and in silico Antileishmanial Evaluation, Antioxidant and Cytotoxicity Activities