An extract from Myracrodruon urundeuva inhibits matrix mineralization in human osteoblasts

Author(s):Show less -

Matos, Adriana Arruda ^[1] ; Oliveira, Flavia Amadeu ^[1] ; Machado, Alessandra Cury ^[1] ; Saldanha, Luiz Leonardo ^[2] ; Tokuhara, Cintia Kazuko ^[1] ; Souza, Leonardo Perez ^[3] ; Vilegas, Wagner ^[3] ; Dionisio, Thiago Jose ^[1] ; Santos, Carlos ^[1] ; Peres-Buzalaf, Camila ^[4] ; Dokkedal, Anne Ligia ^[2] ; Oliveira, Rodrigo ^[1]

Affiliation

^[1] Univ Sao Paulo, Bauru Sch Dent, Dept Biol Sci, Bauru, SP - Brazil

^[2] UNESP, Dept Biol Sci, Sch Sci, Bauru, SP - Brazil

^[3] UNESP, Chem Inst, Dept Organ Chem, Araraquara, SP - Brazil

^[4] Univ Sagrado Coracao, Proreitoria Pesquisa & Posgrad, Bauru, SP - Brazil

• Document type: Journal article
• Source: Journal of Ethnopharmacology; v. 237, p. 192-201, JUN 12 2019.
• Web of Science Citations: 0

Abstract

Ethnopharmacological relevance: Phytotherapy based on plant-derived compounds is an alternative medicinal strategy for the relief of symptoms and the curing of diseases. The leaves of Myracrodruon urundeuva a medicinal plant also known as ``aroeira{''}, has been used in traditional medicine as healing, antiulcer and anti-inflammatory to treat skeletal diseases in Brazil, but its role in bone cell toxicity, as well as in bone formation, remains to be established. Aim of the study: We sought to determine the in vitro osteogenic effects of a hydroalcoholic M. urundeuva leaves extract in primary human osteoblasts. Materials and methods: Cell viability, reactive oxygen species (ROS) production, alkaline phosphatase (ALP) activity and matrix mineralization were evaluated by MTT assay, DCFH-DA probe, colorimetric-based enzymatic assay and Alizarin Red-staining, respectively. Besides, the matrix metalloproteinase (MMP)-2 and progressive ankylosis protein homolog (ANKH) gene expression were determined by real-time RT-qPCR and MMP-2 activity by zymography. Results: Exposure of osteoblasts to M. urundeuva extract significantly decreased viability and increased reactive oxygen species (ROS) production, regardless of the extract concentration. The M. urundeuva extract at 10 mu g/mL also downregulated matrix metalloproteinase (MMP)-2, while upregulating progressive ankylosis protein homolog (ANKH) gene expression. By contrast, the MMP-2 activity was unchanged. The M. urundeuva extract at 10 mu g/mL also reduced alkaline phosphatase (ALP) activity and mineralization. Conclusions: Overall, our findings suggest that the inhibition of osteogenic differentiation and matrix mineralization promoted by M. urundeuva may be due more to an increase in oxidative stress than to the modulation of MMP-2 and ANKH expression. (AU)

• FAPESP's process: 10/02026-9 - Evaluations of aroeira"s extract influence in adhesion and proliferate of human fibroblast and MMP-2 and MMP-9 expression in vitro
• Grantee: Rodrigo Cardoso de Oliveira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 10/14039-8 - Effect of the extract of aroeira in the process of proliferation and mineralization of human osteoblasts in vitro
• Grantee: Adriana Arruda Matos
• Support Opportunities: Scholarships in Brazil - Master