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. 2022 Sep 5;11(17):2766. doi: 10.3390/cells11172766

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Characterization of the synoviocytes and chondrocytes. (A) Vimentin IF staining of FLSs: (a) test cells; (b) isotype controls. (B) The surface markers were analyzed using FCM: (a) the synoviocyte surface markers of CD90 (FLSs), CD68 (macrophages), and CD3 (T cells); (b) the MSC surface markers of CD29 and CD105. (C) Characterization of the chondrocytes using toluidine blue staining. (D) Characterization of the chondrocytes with COLII immunofluorescence analysis: (a) test cells; (b) isotype controls.