Role of Cathepsin S in Periodontal Inflammation and Infection

Figure 2

(a) Effects of IL-1β (1 ng/mL) or F. nucleatum (OD: 0.025) on CTSS protein level in supernatants at 1 d and 2 d, as determined by ELISA. Untreated cells served as the control. Mean ± SEM (); significant () difference between groups. (b) Effects of IL-1β (1 ng/mL) or F. nucleatum (OD: 0.025) on CTSS protein level in cells at 1 d, as analyzed by immunocytochemistry. Untreated cells served as the control. Experiments were performed in triplicates, and representative images of cells from one donor are shown.

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