Evaluation of the antibacterial effects and mechanism of Plantaricin 149 from Lactobacillus plantarum NRIC 149 on the peri-implantitis pathogens.

Evaluation of the antibacterial effects and mechanism of Plantaricin 149 from Lactobacillus plantarum NRIC 149 on the peri-implantitis pathogens.
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DOI:
10.1038/s41598-021-00497-y
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发表时间:
2021-10-25
期刊:
影响因子:
4.6
通讯作者:
He F
He F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Lin X;Xu J;Shi Z;Xu Y;Fu T;Zhang L;He F

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种植体周围炎是牙种植术后常见的可逆性疾病,由多种病原微生物引起。根据非手术或手术治疗原则,补充局部或全身药物可能会提高治疗效果。使用牙龈卟啉单胞菌(Pg)(ATCC 33,277)和中间普雷沃氏菌(Pi)(ATCC 25,611)作为测试菌株。通过RT-PCR、荧光显微镜和扫描电镜观察Pln 149对牙周致病菌生物膜形成和生长的影响。采用膜片钳技术研究其抗菌机制。使用MTT测定评估Pln 149(125 μg/ml)对骨髓基质细胞(BMSC)的细胞毒性。Pln 149对Pg和Pi有显著的抑制作用(P < 0.05),荧光显微镜和扫描电镜下生物膜图像差异有显著性(P < 0.05)。Pln 149能改变骨髓基质细胞钠通道电流,对骨髓基质细胞无细胞毒性。Pln 149能抑制牙周致病菌生物膜的形成和生长。考虑到缺乏抗菌素耐药性和细胞毒性,我们认为来自植物乳杆菌149的Pln 149可能是管理种植体周围炎的有希望的选择。
Peri-implantitis is a common reversible disease after tooth implantation, caused by a variety of pathogenic microorganisms. Based on non-surgical or surgical treatment principles, supplementation by local or systemic drugs might enhance treatment efficacy. Porphyromonas gingivalis (Pg) (ATCC 33,277) and Prevotella intermedius (Pi) (ATCC 25,611) were used as test strains. The effects of Pln 149 on the biofilm formation and growth of four periodontal pathogens were evaluated by RT-PCR, fluorescence microscopy, and scanning electron microscopy. The antibacterial mechanism was tested by the patch-clamp technique. The cytotoxicity of Pln 149 (125 µg/ml) to bone marrow stromal cell (BMSC) was assessed using an MTT assay. Pln 149 exhibited significant inhibitory effects on Pg and Pi (P < 0.05), with significant differences in the biofilm images of fluorescence microscope and scanning electron microscope (P < 0.05). Pln 149 could change the sodium channel currents and exerted no cytotoxicity on bone marrow stromal cell. Pln 149 could inhibit the biofilm formation and growth of periodontal pathogens. Considering the absence of antimicrobial resistance and cytotoxicity, we suggest that the Pln 149 from Lactobacillus plantarum 149 might be a promising option for managing peri-implantitis.
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