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. 2015 Jun 10;16:141. doi: 10.1186/s12891-015-0599-x

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© Yoon et al. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — The main function of hChonJb#7 as the source of active TGF-β1. a The hChonJ micro-masses were cultured with medium including rhTGF-β1 (25 ng/ μ-mass), purified human type II collagen (25 ng/ μ-mass) or proteoglycan human joint cartilage extract (25 ng/ μ-mass). After 1 week, total RNA was purified from each micro-mass and applied to qPCR to measure the type II collagen gene expression level. The Y-axis shows fold difference of type II collagen mRNA level increased inTGF-β1 supplemented micro-masses compared to hChonJ micro-masses. The error bars represent the standard deviation. b Micro-masses cultured in the same method to (a) used to measure the accumulated GAG amount. The error bars represent the standard deviation