TLR2 and the NLRP3 inflammasome mediate IL-1β production in -infected dendritic cells.

Int J Med Sci

Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea.

Published: September 2021

is an oral pathogen that is frequently observed in the subgingival plaque of periodontitis patients. Interleukin-1β (IL-1β) is known to be involved in the immunopathology of periodontal diseases and has been implicated in the destruction of bone. In this study, we investigated the mechanism of IL-1β production by in murine bone marrow-derived dendritic cells (BMDCs). Our results showed that a host receptor, Toll-like receptor 2 (TLR2), but not TLR4 is required for pro-IL-1β induction and nucleotide-binding oligomerization domain like receptor pyrin domain containing 3 (NLRP3) priming in BMDCs in response to and activation of the NLRP3 inflammasome is necessary for processing of pro-IL-1β into mature IL-1β. In addition, an inhibitor assay revealed that production of reactive oxygen species, P2XR activity, and release of cathepsin B are involved in IL-1β production in BMDCs in response to

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7757152PMC
http://dx.doi.org/10.7150/ijms.47197DOI Listing

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