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Study of the inflammatory activating process in the early stage of Fusobacterium nucleatum infected PDLSCs 被引量:1
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作者 Yushang Wang Lihua Wang +8 位作者 Tianyong Sun Song Shen Zixuan Li Xiaomei Ma Xiufeng Gu Xiumei Zhang Ai Peng Xin Xu Qiang Feng 《International Journal of Oral Science》 SCIE CAS CSCD 2023年第1期113-126,共14页
Fusobacterium nucleatum(F.nucleatum)is an early pathogenic colonizer in periodontitis,but the host response to infection with this pathogen remains unclear.In this study,we built an F.nucleatum infectious model with h... Fusobacterium nucleatum(F.nucleatum)is an early pathogenic colonizer in periodontitis,but the host response to infection with this pathogen remains unclear.In this study,we built an F.nucleatum infectious model with human periodontal ligament stem cells(PDLSCs)and showed that F.nucleatum could inhibit proliferation,and facilitate apoptosis,ferroptosis,and inflammatory cytokine production in a dose-dependent manner.The F.nucleatum adhesin Fad A acted as a proinflammatory virulence factor and increased the expression of interleukin(IL)-1β,IL-6 and IL-8.Further study showed that Fad A could bind with PEBP1 to activate the Raf1-MAPK and IKK-NF-κB signaling pathways.Time-course RNA-sequencing analyses showed the cascade of gene activation process in PDLSCs with increasing durations of F.nucleatum infection.NFκB1 and NFκB2 upregulated after 3 h of F.nucleatum-infection,and the inflammatory-related genes in the NF-κB signaling pathway were serially elevated with time.Using computational drug repositioning analysis,we predicted and validated that two potential drugs(piperlongumine and fisetin)could attenuate the negative effects of F.nucleatum-infection.Collectively,this study unveils the potential pathogenic mechanisms of F.nucleatum and the host inflammatory response at the early stage of F.nucleatum infection. 展开更多
关键词 INFLAMMATORY DRUGS PDL
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