Cytokine production was measured in the culture supernatants from RPE and RPE-LC3B cells challenged as described above in the presence or absence of LGM2605 at the concentrations indicated in the Figure legends. Culture supernatants collected at the time points indicated in the figure legends were analyzed by ELISA for IL-1 β (Quantikine Elisa Kit; R&D Systems) and IL-18 (Quantikine Elisa Kit; R&D Systems, #DL180) commercially available kits according to the manufacturer’s instructions [55 (link)]. In each instance, the amount of cytokine present in the supernatant was determined using a standard curve.
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