Changes of TNF-α and IL-1 levels in different type culture supernatants with LPS (10 µg/mL) (n = 3, mean ± SD). DC, solid line; KC, dot line; HC, dashed line. aP < 0.05, bP < 0.01 for IL-1 levels in DC, KC, and HC vs. control. dP < 0.01, vs KC and HC. A: Changes of TNF-α levels in different type culture supernatants with LPS. B: Changes of IL-1 levels in different type culture supernatants with LPS.