Concentration-dependent in vitro Anti-osteoarthritis Effects of Mixed Formula - Pomegranate Concentrate Powder: Eucommiae Cortex: Achyranthis Radix 5:4:1 (g/g) on the Primary Cultured Rat Articular Chondrocytes

  • Choi, Beom Rak (Research Institute, HL Science Co., Ltd.) ;
  • Ku, Sae Kwang (Department of Histology and Anatomy, College of Korean Medicine, Daegu Haany University) ;
  • Kang, Su Jin (The Medical Research Center for Globalization of Herbal Medicine, Daegu Haany University) ;
  • Park, Hye Rim (Research Institute, HL Science Co., Ltd.) ;
  • Sung, Mi Sun (Research Institute, HL Science Co., Ltd.) ;
  • Lee, Young Joon (The Medical Research Center for Globalization of Herbal Medicine, Daegu Haany University) ;
  • Park, Ki Moon (Department of Foodscience and Biotechnology, Sungkyunkwan University)
  • Received : 2018.10.26
  • Accepted : 2019.02.25
  • Published : 2019.04.25


The objective of present study is to evaluate concentration-dependent in vitro anti-osteoarthritic (OA) effects of synergic mixed formula consisted of dried pomegranate juice concentrate powder, Eucommiae Cortex aqueous extract and Achyranthis Radix aqueous extract 5:4:1 (g/g) mixture on the primary cultured rat articular chondrocytes. First, any cytotoxic effect of mixture was observed using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium Bromide) assay. Next, cyto-protective effect of test substances was evaluated by using the recombinant human interleukin $(rhIL)-1{\alpha}$ induced chondrocytes. In addition, anti-inflammatory effects were also observed on the lipopolysaccaride (LPS) treated chondrocytes through prostaglandin $E_2(PGE_2)$ productions and 5-lipoxygenase (LPO) activities, and inhibitory effects on matrix metalloproteinase (MMP)-2 and MMP-9 activities were observed on $rhIL-1{\alpha}$ treated chondrocytes with their extracellular matrix (ECM) related mRNA expressions. No obvious cytotoxic effects of mixture were demonstrated. Inflammatory damages of chondrocytes and related ECM degradations induced by treatment of LPS or $rhIL-1{\alpha}$ were significantly and concentration-dependently inhibited by pretreatment of mixture from a concentration level of 0.001 mg/ml to 1 mg/ml. In addition, mixture showed $IC_{50}$ for $rhIL-1{\alpha}-induced$ MMP-2 and MMP-9 activities as 44.01 and $162.47{\mu}g/ml$, and also showed $EC_{50}$ for $rhIL-1{\alpha}-induced$ inhibition of collagen type II, SOX9 and aggrecan mRNA expression as 8.61, 10.79 and $4.47{\mu}g/ml$, respectively. It is observed that mixture showed concentration-dependent anti-inflammatory and cytoprotective ECM preserved effects on the primary cultured rat articular chondrocytes without cytotoxicity.


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