Emodin-8-O-β-D-glucoside from Polygonum amplexicaule D. Don var. sinense Forb. promotes proliferation and differentiation of osteoblastic MC3T3-E1 cells

• Published in: Molecules (Basel, Switzerland) Vol. 16; no. 1; pp. 728 - 737
• Main Authors: Xiang, Mei-Xian, Xu, Zong, Su, Han-Wen, Hu, Jinyue, Yan, Yun-Jun
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI 18.01.2011; MDPI AG
• Subjects: 3T3 Cells; Animals; Anthraquinones - pharmacology; Cell Cycle - drug effects; Cell Differentiation - drug effects; Cell Proliferation - drug effects; Chromatography, High Pressure Liquid; differentiation; emodin-8-O-β-D-glucoside; Glucosides - pharmacology; Mice; osteoblastic MC3T3-E1 cell; Osteoblasts - cytology; Osteoblasts - drug effects; Polygonum - chemistry; Polygonum amplexicaule D. Don var. sinense Forb. (Polygonaceae); proliferation
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules16010728

Polygonum amplexicaule D. Don var. sinense Forb. (Polygonaceae) (PAF) is a famous traditional herb used to treat fractures, rheumatoid arthritis, muscle injury and pain. The present study was designed to investigate a PAF derived-chemical compound emodin-8-O-β-D-glucoside (EG) on the proliferation and differentiation of osteoblastic MC3T3-E1 cell in vitro. A compound was isolated from PAF extract by HPLC and identified as emodin-8-O-β-D-glucoside (EG) by spectroscopic methods. EG significantly promoted cell proliferation at 0.1-100 ng/mL, and increased the cell proportion in S-phase from 16.34% to 32.16%. Moreover, EG increased alkaline phosphatase (ALP) expression in MC3T3-E1 cells at the concentration from 0.1 to 100 ng/mL and inhibited PGE(2 )production induced by TNF-α in osteoblasts at the concentrations ranging from 10-100 ng/mL, suggesting that cell differentiation was induced in MC3T3-E1 osteoblasts. Taken together, these results indicated compound EG directly stimulated cell proliferation and differentiation of osteoblasts, therefore this study preliminarily explored the pharmacological mechanism of PAF to promote the healing of bone rheumatism and various fractures.