PMID- 37647428 OWN - NLM STAT- MEDLINE DCOM- 20230901 LR - 20230905 IS - 2050-4527 (Electronic) IS - 2050-4527 (Linking) VI - 11 IP - 8 DP - 2023 Aug TI - Effects of N-acetyl-L-cysteine polysulfides on periodontitis in a mouse model. PG - e959 LID - 10.1002/iid3.959 [doi] LID - e959 AB - BACKGROUND: Polysulfides are reported to be involved in various important biological processes. N-acetyl-l-cysteine polysulfide with 2 sulfane sulfur atoms (NAC-S2) regulates diverse toll-like receptor (TLR) signaling pathways. Here, we aimed to determine the role of NAC-S2 in periodontitis and explore the potential mechanism. METHODS: A periodontitis mouse model was established by ligating the subgingival between the first and second molars in wild-type, TLR4(-/-) , and Myd88(-/-) mice. RESULTS: NAC-S2 did not affect the proportion of macrophages (CD11b(+) F4/80(+) ) or neutrophils (CD11b(+) GR-1(+) ) in the bone marrow. Mechanically, lipopolysaccharides (LPS), Zymosan A, or poly I: C induced tumor necrosis factor (TNF), interleukin (IL)-6, and IL-1beta expression in bone marrow-derived macrophages (BMDMs) could be inhibited by NAC-S2. On the other hand, NAC-S2 suppressed the phosphorylation levels of IkappaB-alpha, p65, and IkappaB kinase (IKK)-beta induced by LPS in BMDMs, while LPS induced phosphorylation of ERK1/2, p38, and transforming growth factor beta-activated kinase 1 (TAK1) could not be affected by NAC-S2. In wild-type periodontitis mice, NAC-S2 administration decreased the cemento-enamel-junction-alveolar bone crest (CEJ-ABC) distance and the relative mRNA expression of TNF, IL-6, and IL-1beta, while such phenomena could not be observed in TLR4 deficiency or Myd88 deficiency mice. CONCLUSIONS: All of these results indicate that NAC-S2 ameliorates TLR4/NF-kappaB pathway mediated inflammation in mouse periodontitis model. CI - (c) 2023 The Authors. Immunity, Inflammation and Disease published by John Wiley & Sons Ltd. FAU - Sun, Xinxin AU - Sun X AUID- ORCID: 0000-0001-7180-280X AD - Dental Department, Hejian Hospital of Traditional Chinese Medicine, Cangzhou Central Hospital Medical Group, Cangzhou, Hebei, China. FAU - Sun, Yaru AU - Sun Y AD - Dental Clinics, Cangzhou Central Hospital, Cangzhou, Hebei, China. FAU - Cao, Sumin AU - Cao S AD - Dental Clinics, Cangzhou Central Hospital, Cangzhou, Hebei, China. FAU - Liu, Xueli AU - Liu X AD - Dental Clinics, Cangzhou Central Hospital, Cangzhou, Hebei, China. LA - eng PT - Journal Article PL - England TA - Immun Inflamm Dis JT - Immunity, inflammation and disease JID - 101635460 RN - 9080-49-3 (polysulfide) RN - WYQ7N0BPYC (Acetylcysteine) RN - 0 (Lipopolysaccharides) RN - 0 (Toll-Like Receptor 4) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Mice MH - *Acetylcysteine/pharmacology MH - Lipopolysaccharides/toxicity MH - Toll-Like Receptor 4/genetics MH - *Periodontitis/drug therapy MH - Tumor Necrosis Factor-alpha MH - Disease Models, Animal PMC - PMC10408371 OTO - NOTNLM OT - NAC-S2 OT - NF-kappaB OT - TLR4 OT - inflammation OT - periodontitis COIS- The authors declare no conflict of interest. EDAT- 2023/08/30 18:42 MHDA- 2023/09/01 06:43 PMCR- 2023/08/08 CRDT- 2023/08/30 14:13 PHST- 2023/07/10 00:00 [revised] PHST- 2023/04/28 00:00 [received] PHST- 2023/07/13 00:00 [accepted] PHST- 2023/09/01 06:43 [medline] PHST- 2023/08/30 18:42 [pubmed] PHST- 2023/08/30 14:13 [entrez] PHST- 2023/08/08 00:00 [pmc-release] AID - IID3959 [pii] AID - 10.1002/iid3.959 [doi] PST - ppublish SO - Immun Inflamm Dis. 2023 Aug;11(8):e959. doi: 10.1002/iid3.959.