Research Article

IL-1β-Induced Matrix Metalloprotease-1 Promotes Mesenchymal Stem Cell Migration via PAR1 and G-Protein-Coupled Signaling Pathway

Figure 2

IL-1β-induced MMP-1 expression. (a) DNA microarray-based screening for the expression of MMPs with IL-1β stimulation for 24 hours in mesenchymal stem cells. (b) Quantitation of changes in the gene expression of MMP-1 detected by real-time PCR after IL-1β inhibitor IL-1RA (2 μg/ml) pretreatment and stimulation with IL-1β for 24 hours. Data are shown as mean ± SD (, versus control, versus IL-1β). (c) MMP-1 protein expression was measured using ELISA, pretreated with IL-1RA at concentration of 2 μg/ml, and stimulated with IL-1β for 48 hours. Data are shown as mean ± SD (, versus control, versus IL-1β).
(a)
(b)
(c)