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. 2020 May 18;11:2041731420919334. doi: 10.1177/2041731420919334

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© The Author(s) 2020

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 5. — Immunohistochemical analysis of ASC collagen gel cultures after 14 days with 100 ng mL⁻¹ rhGDF6 stimulation with and without SMAD1/5/8 (Dorso) or ERK1/2 (U0126) inhibition and no stimulation control. After 14 days culture, constructs stimulated with rhGDF6 demonstrated an increase in aggrecan and type II collagen deposition compared to rhGDF6 stimulated constructs where SMAD1/5/8 and ERK1/2 signalling had been blocked, where levels appeared similar to unstimulated controls. Scale bar, 500 µm.