Abstract:
:Periodontitis is a common disease that is characterized by resorption of the alveolar bone and mediated by commensal bacteria that trigger host immune responses and bone destruction through unidentified mechanisms. We report that Nod1, an innate intracellular host receptor for bacterial peptidoglycan-related molecules, is critical for commensal-induced periodontitis in a mouse model. Mice lacking Nod1 exhibit reduced bone resorption as well as impaired recruitment of neutrophils to gingival tissues and osteoclasts to the alveolar bone, which mediate tissue and bone destruction. Further analysis showed that accumulation of a Nod1-stimulating commensal bacterium, NI1060, at gingival sites was sufficient to induce neutrophil recruitment and bone resorption. Genomic sequencing revealed that NI1060 is a mouse-specific bacterium that is related to bacteria associated with the development of aggressive periodontitis in humans. These findings provide insight into commensal-host interactions contributing to periodontitis and identify a potential target for preventing this common oral disease.
journal_name
Cell Host Microbejournal_title
Cell host & microbeauthors
Jiao Y,Darzi Y,Tawaratsumida K,Marchesan JT,Hasegawa M,Moon H,Chen GY,Núñez G,Giannobile WV,Raes J,Inohara Ndoi
10.1016/j.chom.2013.04.005subject
Has Abstractpub_date
2013-05-15 00:00:00pages
595-601issue
5eissn
1931-3128issn
1934-6069pii
S1931-3128(13)00147-9journal_volume
13pub_type
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