Polysaccharide from Angelica sinensis protects chondrocytes from H2O2-induced apoptosis through its antioxidant effects in vitro

International Journal of Biological Macromolecules
Chao ZhuangHong-Guang Xie

Abstract

This study aimed to explore the protective effects of Angelica sinensis polysaccharide (ASP) on rat chondrocyte injury induced by hydrogen peroxide (H2O2). Rat chondrocytes were cultured and treated with different concentrations of ASP alone or in combination with H2O2, and they were measured with cell viability, apoptosis, release of inflammatory cytokines, such as interleukin-1beta (IL-1β) and tumor necrosis factor-alpha (TNF-α), activity of superoxide dismutase (SOD), and catalase (CAT), and levels of malondialdehyde (MDA) production, respectively. In addition, quantitative real-time reverse transcription polymerase chain reaction was used to estimate the relative expression levels of osteoarthritis (OA)-associated genes, such as collagen type II (Col2a1), aggrecan, SOX9, matrix metalloproteinase (MMP)-1, -3, and -9, as well as tissue inhibitor of matrix metalloproteinase (TIMP)-1, respectively. Results indicated that ASP protected chondrocytes from H2O2-induced oxidative stress and subsequent cell injury through its antioxidant, antiapoptotic and anti-inflammatory effects in vitro. Our study suggests that ASP could become a therapeutic supplementation for the treatment of OA.

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Citations

Jul 15, 2016·BMC Complementary and Alternative Medicine·Jung Up ParkYoung Ran Kim
Apr 8, 2017·Journal of Biomedical Materials Research. Part a·Vikrant RaiDevendra K Agrawal
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