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. 2018 Feb 15;9:105. doi: 10.3389/fphar.2018.00105

FIGURE 1.

FIGURE 1

Flow cytometry analysis of the surface maker of the FLSs. Mouse IgG isotypes labeled with FITC served as a negative control (A). The positive rate of 0.16% was chosen as the background (as shown in the box) and then the FITC-labeled VCAM-1 (B) expression rate was examined. The results showed that the expression of VCAM-1 in the cell suspension was 99.5%, indicating that the main component of cultured third-generation synoviocytes was FLSs.