Sensing and signaling in periodontal inflammation via toll like receptors: A review

Abstract

Periodontal disease is a chronic inflammatory condition that affects the supporting structures of teeth, including the gingiva, periodontal ligament, and alveolar bone. Toll-like receptors (TLRs) play a crucial role in the recognition of pathogen-associated molecular patterns (PAMPs) from bacteria that cause periodontal disease. TLR activation triggers an inflammatory response that aims to eliminate the bacteria and repair damaged tissue. However, if the inflammation persists, it can lead to further tissue destruction and bone loss. This review discusses the mechanisms of TLRs in periodontal disease progression, including the recognition of bacteria, activation of immune cells, tissue destruction, and inhibition of immune response. Strategies for down-regulating TLRs, such as small-molecule inhibitors, antibodies, natural products, micro RNA, and nutritional interventions, are also discussed. Targeting TLRs is a promising therapeutic approach for reducing chronic inflammation associated with periodontal disease. Further research is needed to develop safe and effective strategies for down-regulating TLRs in humans.