中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (8): 1205-1210.doi: 10.12307/2022.946

• 骨组织构建 bone tissue construction • 上一篇    下一篇

柚皮苷通过调控RAW264.7细胞功能影响MC-3T3-E1细胞的成骨分化

唐  亮1,李熙恒1,牛瑞娟1,李欣悦1, 邹馨颖1,毛天骄2,李  江1,2   

  1. 1吉林大学口腔医院,吉林省长春市  130021;2广州医科大学附属口腔医院,广东省广州市  510150
  • 收稿日期:2021-12-22 接受日期:2022-01-30 出版日期:2023-03-18 发布日期:2022-07-27
  • 通讯作者: 李江,主任医师,教授,博士生导师,吉林大学口腔医院,吉林省长春市 132001;广州医科大学附属口腔医院,广东省广州市 510150
  • 作者简介:唐亮,男,1994年生,吉林省四平市人,吉林大学在读硕士,主要从事口腔修复方面的研究。
  • 基金资助:
    国家重点研发计划(2021YFE0108000),项目负责人:李江

Naringin regulates the function of RAW264.7 macrophages to affect the osteogenic differentiation of MC-3T3-E1 cells

Tang Liang1, Li Xiheng1, Niu Ruijuan1, Li Xinyue1, Zou Xinying1, Mao Tianjiao2, Li Jiang1, 2   

  1. 1Stomatology Hospital, Jilin University, Changchun 130021, Jilin Province, China; 2Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Received:2021-12-22 Accepted:2022-01-30 Online:2023-03-18 Published:2022-07-27
  • Contact: Li Jiang, Chief physician, Professor, Doctoral supervisor, Stomatology Hospital, Jilin University, Changchun 130021, Jilin Province, China; Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • About author:Tang Liang, Master candidate, Stomatology Hospital, Jilin University, Changchun 130021, Jilin Province, China
  • Supported by:
    the National Key Research and Development Program of China, No. 2021YFE0108000 (to LJ)

摘要:

文题释义:
柚皮苷:是一种药物单体,主要存在于芸香科果皮和果肉中,为中药骨碎补的主要成分之一,主要有抗炎和促进成骨等特点。
脂多糖:为革兰阴性菌细胞壁中的一种特有成分,有利于细胞膜完整性,可引起免疫刺激的级联反应和机体的毒性病理生理活动。

背景:柚皮苷作为一种中药单体,具有抗炎、促进成骨和抗癌等作用;RAW264.7巨噬细胞在骨破坏过程中发挥重要作用。有研究发现降低炎症水平可以促进MC-3T3-E1细胞的成骨分化,所以通过抑制炎症相关通路,可能对成骨细胞分化具有促进作用。
目的:观察柚皮苷通过调控RAW264.7细胞功能是否会影响MC-3T3-E1细胞的成骨分化。 
方法:采用CCK-8法检测不同浓度柚皮苷对脂多糖诱导的RAW264.7细胞的毒性。将RAW264.7细胞分成7组:即对照组(DMEM培养基)、炎症模型组(1 mg/L脂多糖)和柚皮苷组(1 mg/L 脂多糖+50,100,150,200,250 μmol/L柚皮苷),通过RT-PCR检测炎症因子mRNA水平变化,筛选出抗炎浓度较好的3组(150,200,250 μmol/L柚皮苷组)数据用于后续实验。将RAW264.7细胞分成4组:炎症模型组、150,200,250 μmol/L柚皮苷组分别取各组的上清液制备炎症上清液。最后将上述制取的炎症上清液与成骨诱导培养基1∶1比例混合共同培养MC-3T3-E1细胞并分为5组:对照组、炎症模型组、150,200,250 μmol/L柚皮苷组,培养7,14 d进行成骨相关基因的检测,并进行碱性磷酸酶染色、碱性磷酸酶活性实验。
结果与结论:①1 mg/L的脂多糖对巨噬细胞无毒性作用,200 μmol/L柚皮苷对脂多糖诱导的巨噬细胞有细胞毒性作用(P < 0.05);②筛选药物抗炎浓度过程中,与对照组相比柚皮苷浓度为150,200,250 μmol/L时抗炎效果较好(P < 0.05),此3组浓度用于后续实验;③碱性磷酸酶染色结果显示,与对照组相比柚皮苷浓度200 μmol/L时染色效果最好,且14 d比7 d染色效果更佳;④与对照组相比,200 μmol/L柚皮苷组的成骨基因mRNA表达水平最接近对照组,成骨效果最差的为炎症模型(P < 0.05);⑤碱性磷酸酶活性实验中,7 d时与对照组相比,柚皮苷浓度为200 μmol/L时碱性磷酸酶活性最强(P < 0.05);与炎症模型组相比,柚皮苷浓度为200 μmol/L时最佳(P < 0.05);14 d时,与对照组相比,200 μmol/L组无显著差异;与炎症模型组相比,200 μmol/L组活性最强;⑥以上结果证明,柚皮苷通过调节RAW264.7巨噬细胞功能可改善炎症状态下MC-3T3-E1细胞的成骨分化。
缩略语:巨噬细胞炎性蛋白1α:macrophage inflammatory protein-1α,MIP-1α

https://orcid.org/0000-0002-9562-7098 (唐亮)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 柚皮苷, 抗炎, 成骨, MC-3T3-E1细胞, RAW264.7细胞

Abstract: BACKGROUND: Naringin, as a monomer of traditional Chinese medicine, has the anti-inflammatory and anti-cancer effects and can promote osteogenesis. RAW264.7 cells play an important role in bone destruction. Some studies have found that reducing inflammation can promote the osteogenic differentiation of MC-3T3-E1 cells. So, it may promote osteogenic differentiation by inhibiting inflammation-related pathways.
OBJECTIVE: To observe whether naringin can regulate the function of RAW264.7 cells to affect the osteogenic differentiation of MC-3T3-E1 cells.
METHODS: The cytotoxicity of different concentrations of naringin to RAW264.7 cells induced by lipopolysaccharide was tested by cell counting kit-8 method. RAW264.7 cells were divided into seven groups: control (DMEM culture), model group (1 mg/L lipopolysaccharide), and naringin groups (1 mg/L lipopolysaccharide+50, 100, 150, 200, 250 μmol/L naringin). In different concentration naringin groups, the mRNA levels of inflammatory factors were detected by RT-PCR. Data of three naringin groups with better anti-inflammatory concentrations (150, 200, 250 μmol/L) were selected for follow-up experiments. RAW264.7 cells were divided into four groups: inflammation model, 150, 200, 250 μmol/L naringin groups. The above four groups were used as inflammatory supernatant. The inflammatory supernatant prepared above was mixed with osteogenic induction medium in a ratio of 1:1 to co-culture MC-3T3-E1 cells. Culture cells were divided into five groups: control group, inflammation model group, 150, 200, 250 μmol/L naringin groups. Osteogenesis-related gene detection, alkaline phosphatase staining, and alkaline phosphatase activity experiment were carried out on 7 and 14 days of culture.
RESULTS AND CONCLUSION: 1 mg/L lipopolysaccharide has no toxic effect on macrophages, but 200 μmol/L naringin showed a cytotoxic effect on macrophages induced by lipopolysaccharide (P < 0.05). In the process of screening the anti-inflammatory concentration of naringin, the concentration of naringin at 150, 200, and 250 μmol/L compared with the control group had good anti-inflammatory effects (P < 0.05). Therefore, 150, 200, and 250 μmol/L naringin were used for subsequent experiments. Alkaline phosphatase staining results showed that compared with the control group, 200 μmol/L naringin had the best dyeing result and the dyeing effect was better on 14 days than 7 days. The mRNA expression level of osteogenesis-related genes in the 200 μmol/L naringin was the closest to that in the control group and the inflammation model group had the worst osteogenic effect (P < 0.05). In the alkaline phosphatase activity experiment, compared with the control group and inflammation model group, 200 μmol/L naringin showed the strongest alkaline phosphatase activity on 7 days of culture (P < 0.05). Compared with the control group and inflammation model group, 200 μmol/L naringin showed no statistical significance in the alkaline phosphatase activity on 14 days of culture. Whilst compared with the inflammation group, the strongest alkaline phosphatase activity was found in the 200 μmol/L naringin group. The above results show that naringin can improve the osteogenic differentiation of MC-3T3-E1 cells in the inflammatory state by regulating the function of RAW264.7 macrophages.

Key words: naringin, anti-inflammation, osteogenesis, MC-3T3-E1 cell, RAW264.7 cell

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