Additional file 5: Figure S4.

Showing that primary cultured chondrocytes freshly prepared from cartilage tissues (P0) and the cells that underwent subculture twice (P2) were plated and cultured in the presence or absence of echistatin (1 μM). Cell viability was assessed 7 days after plating by MTT assay as described for Additional file 2. Results are shown by relative ratios against the cells cultured without echistatin. Results are mean ± standard error of the mean of three independent experiments, each in triplicate.

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Tanaka et al. Arthritis Research & Therapy 2013 15:R127   doi:10.1186/ar4307