The P2X7 receptor mediates NLRP3-dependent IL-1β secretion and promotes phagocytosis in the macrophage response to Treponema pallidum
2020
Abstract It is unclear whether P2X7 receptor (P2X7R) mediates NOD-like receptor family protein 3 (NLRP3)-dependent IL-1β secretion and spirochete phagocytosis in syphilis. This study was conducted to investigate the role of P2X7R in modifying NLRP3-dependent IL-1β secretion and regulating phagocytosis by Treponema pallidum (T. pallidum)-induced macrophages. Macrophages derived from a human acute monocytic leukemia cell line were cultured with T. pallidum. The activation of P2X7R in T. pallidum-treated macrophages occurred in a dose- and time-dependent manner. The P2X7R silencing group showed significantly decreased NLRP3 mRNA and protein levels (vs. the Tp group, P
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