Poligalen, a new coumarin from Polygala boliviensis, reduces the release of TNF and IL-6 independent of NF-kB downregulation

Resumo

An unusually substituted coumarin, named poligalen, was isolated from a chloroform extract of the aerial parts of Polygala boliviensis. This coumarin was identified by one- and two-dimensional NMR techniques, and the structure of the compound was confirmed by X-ray diffraction. Poligalen exhibits immunomodulatory effects, reducing the levels of IL-6 and TNF after LPS stimulation in peritoneal macrophages. However, poligalen potentiates NF-kB activation.

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Citação

SILVA, Danielle F. et al. Poligalen, a new coumarin from Polygala boliviensis, reduces the release of TNF and IL-6 independent of NF-kB downregulation. Fitoterapia, [s. l.], v. 113, p. 139-143, 2016. DOI: 10.1016/j.fitote.2016.07.021. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0367326X16301794?via%3Dihub. Acesso em: 28 ago. 2023.