中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (25): 4006-4012.doi: 10.12307/2023.545

• 组织工程骨材料 tissue-engineered bone • 上一篇    下一篇

松油烯4醇的抑菌性及促进MC3T3-E1细胞成骨分化作用

郭鹏达1,刘珂珂2,段  昕1,刘朝辉1,张云涛1   

  1. 1滨州医学院附属医院口腔科,山东省滨州市  256600;2周口市中心医院口腔科,河南省周口市  466099
  • 收稿日期:2022-06-23 接受日期:2022-09-06 出版日期:2023-09-08 发布日期:2023-01-17
  • 通讯作者: 张云涛,副教授,滨州医学院附属医院口腔科,山东省滨州市 256600
  • 作者简介:郭鹏达,男,1994年生,山东省潍坊市人,汉族,在读硕士,主要从事口腔种植修复研究。

Terpinen-4-ol with antibacterial properties promotes osteogenic differentiation of MC3T3-E1 cells

Guo Pengda1, Liu Keke2, Duan Xin1, Liu Zhaohui1, Zhang Yuntao1   

  1. 1Department of Stomatology, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China; 2Department of Stomatology, Zhoukou Central Hospital, Zhoukou 466099, Henan Province, China
  • Received:2022-06-23 Accepted:2022-09-06 Online:2023-09-08 Published:2023-01-17
  • Contact: Zhang Yuntao, Associate professor, Department of Stomatology, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China
  • About author:Guo Pengda, Master candidate, Department of Stomatology, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China

摘要:

文题释义:

松油烯4醇:是经化学萃取而得的一种植物活性成分,主要来源于茶树精油。茶树精油是一种气味清新、淡黄色至无色(萃取方式不同,颜色表现出不同深浅)、不溶于水的油性液体,研究表明茶树精油在抗菌、防腐、杀虫等方面表现出良好的活性,被广泛应用于各个领域。 
种植体周围病变:又称种植体周组织炎症,是指发生于种植体周围软、硬组织的炎症损害,包括仅累及软组织的种植体周黏膜炎和累及种植骨床造成显著骨吸收的种植体周围炎。种植体周围炎如不及时治疗,将导致持续的骨吸收和种植体-骨界面的“去整合”,最终使种植体松动、脱落。种植体周围炎是影响牙种植远期效果导致种植体失败的主要原因之一。

背景:有研究发现,松油烯4醇对于种植体周围炎相关致病菌表现出明显的抑菌活性,当应用于钛种植体表面时能有效减少表面生物膜形成,降低种植体周围炎的发生,但是有关其生物安全性的研究不多。
目的:分析松油烯4醇对金黄色葡萄球菌、变异链球菌的抗菌效果,以及其对MC3T3-E1细胞生长与成骨分化的影响。
方法:将松油烯4醇以不同体积分数溶于二甲基亚砜中,检测松油烯4醇溶液对金黄色葡萄球菌和变异链球菌的最低抑菌浓度及最低杀菌浓度,并采用抑菌圈实验检测1/2最低抑菌浓度、最低抑菌浓度及最低杀菌浓度松油烯4醇的抗菌效果。以不同浓度(0%,0.3%,0.2%,0.1%,均为体积分数)松油烯4醇的培养基或钙化诱导液处理MC3T3-E1细胞,采用CCK-8实验检测细胞的增殖活性,罗丹明-鬼笔环肽染色观察细胞骨架,碱性磷酸酶活性实验检测细胞分化能力,茜素红染色观察矿化结节形成,RT-PCR 检测Runx2、骨钙素mRNA的表达。

结果与结论:①松油烯4醇溶液对变异链球菌的最低抑菌浓度为0.1%、最低杀菌浓度为0.4%,对金黄色葡萄球菌的最低抑菌浓度为0.03%、最低杀菌浓度为0.125%;随着浓度的增加,松油烯4醇溶液对两种细菌的抑菌圈直径增加(P < 0.05);②CCK-8实验显示,松油烯4醇可促进MC3T3-E1细胞的增殖,其中以浓度0.2%组最明显;③罗丹明-鬼笔环肽染色显示,松油烯4醇可促进MC3T3-E1细胞的黏附;④碱性磷酸酶活性与茜素红染色显示,松油烯4醇均可促进MC3T3-E1细胞的早期分化与矿化,其中以浓度0.2%组最明显;⑤RT-PCR检测显示,钙化诱导1 d时,0.3%,0.2%,0.1%组Runx2 mRNA的表达高于0%组(P < 0.05);钙化培养7,14 d时,0.2%,0.1%组Runx2、骨钙素mRNA的表达高于0.3%,0%组(P < 0.05);⑥结果表明,松油烯4醇可以抑制金黄色葡萄球菌及变异链球菌的生长,促进MC3T3-E1细胞的增殖、分化和矿化。

https://orcid.org/0000-0002-4432-9719(郭鹏达)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料口腔生物材料纳米材料缓释材料材料相容性组织工程

关键词: 松油烯4醇, 金黄色葡萄球菌, 变异链球菌, MC3T3-E1细胞, 骨钙素OCN, Runx2

Abstract: BACKGROUND: Terpinen-4-ol has been found to have a significant antibacterial activity against pathogenic bacteria associated with peri-implantitis and can reduce the formation of surface biofilm and the occurrence of peri-implantitis when applied to the surface of titanium implants; however, the studies regarding its biosafety are lacking.
OBJECTIVE: To explore the antibacterial effects of terpinen-4-ol on Staphylococcus aureus and Streptococcus mutans and its effect on the growth and osteogenic differentiation of MC3T3-E1 cells.
METHODS: Different concentrations of terpinen-4-ol were dissolved in dimethyl sulfoxide. The minimum inhibitory concentration and minimum bactericidal concentration of pineolene 4 alcohol solution against Staphylococcus aureus and Streptococcus mutans were tested. The 1/2 minimum inhibitory concentration, minimum inhibitory concentration, and minimum bactericidal concentration of pineolene 4 alcohol were tested by bacteriostatic zone test. MC3T3-E1 cells were treated with different concentrations (0%, 0.3%, 0.2%, 0.1%, v/v) of terpinen-4-ol in medium or calcification-inducing solution. The proliferation activity of cells was detected by CCK-8 assay. Cells were stained with rhodamine-phalloidin to observe cytoskeleton. Differentiation ability of cells was detected by alkaline phosphatase activity assay. The formation of mineralized nodules was observed by alizarin red staining. The mRNA expression of Runx2 and osteocalcin was detected by real-time reverse transcription-polymerase chain reaction.
RESULTS AND CONCLUSION: (1) Minimum inhibitory concentration and minimum bactericidal concentration of terpinen-4-ol against Streptococcus mutans were 0.1% (v/v) and 0.4% (v/v) respectively and against Staphylococcus aureus were 0.03% (v/v) and 0.125% (v/v) respectively. With the increase of the concentration of terpinen-4-ol, the diameter of bacteriostatic zone was significantly increased (P < 0.05). (2) CCK-8 assay showed that terpinen-4-ol promoted the proliferation of MC3T3-E1 cells, with the most obvious effects in the 0.2% group. (3) Rhodamine-phalloidin staining showed that terpinen-4-ol promoted the adhesion of MC3T3-E1 cells. (4) Alkaline phosphatase activity assay and alizarin red staining showed that terpinen-4-ol promoted the early differentiation and mineralization of MC3T3-E1 cells, with the most obvious effects in the 0.2% group. (5) Real-time reverse transcription-polymerase chain reaction showed that the mRNA expression of Runx2 was significantly higher in the 0.3%, 0.2%, and 0.1% groups than in the 0% group at 1 day of calcification induction (P < 0.05), and the mRNA expression of Runx2 and osteocalcin was significantly higher in the 0.2% and 0.1% groups than in the 0.3% and 0% groups at 7 and 14 days of calcification induction (P < 0.05). (6) These results indicate that terpinen-4-ol can inhibit the growth of Staphylococcus aureus and Streptococcus mutans and promote the proliferation, differentiation and mineralization of MC3T3-E1 cells.

Key words: terpinen-4-ol, Staphylococcus aureus, Streptococcus mutans, MC3T3-E1 cells, osteocalcin, Runx2

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