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. 2013 Dec 16;8(12):e83563. doi: 10.1371/journal.pone.0083563

Figure 1. The increased expression of MMP-3 mRNA and MMP-3 protein in odontoblast-like cells.

Figure 1

(A) Increased expression of MMP-3 and GAPDH (a housekeeping gene) transcripts measured using RT-PCR. (B) Western blot analysis of the levels of MMP-3 and β-tubulin. The β-tubulin protein served as the internal control to confirm that equal amounts of the total protein extract had been loaded into each well of the gel. Each experiment was repeated three times and the results shown are representative of these three independent experiments.