中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (19): 2968-2974.doi: 10.12307/2023.620

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

高糖微环境下糖原合酶激酶3β抑制剂Tideglusib干预大鼠骨髓间充质干细胞的增殖及成骨分化

罗文豪1,2,冯  乐2,3 ,黄海霞1,2,刘  敏1,2,王  频1,2   

  1. 1西南医科大学附属口腔医院修复科,四川省泸州市   646000;2口颌面修复重建和再生泸州市重点实验室,四川省泸州市   646000;3攀枝花学院附属医院口腔科,四川省攀枝花市   617000
  • 收稿日期:2022-06-25 接受日期:2022-08-01 出版日期:2023-07-08 发布日期:2022-11-28
  • 通讯作者: 王频,硕士,主治医师,西南医科大学附属口腔医院修复科,四川省泸州市 646000;口颌面修复重建和再生泸州市重点实验室,四川省泸州市 646000
  • 作者简介:罗文豪,男,1997年生,福建省南平市人,汉族,西南医科大学在读硕士,主要从事口腔修复、种植的基础与临床研究。
  • 基金资助:
    四川省医学科研课题计划项目(S19023),项目负责人:刘敏;泸州市科技计划项目(2021-JYJ-68),项目负责人:黄海霞

Effect of glycogen synthase kinase-3 beta inhibitor Tideglusib on proliferation and osteogenic differentiation of rat bone marrow mesenchymal stem cells under high glucose microenvironment

Luo Wenhao1, 2, Feng Le2, 3, Huang Haixia1, 2, Liu Min1, 2, Wang Pin1, 2   

  1. 1Department of Prosthodontics, Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; 2Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou 646000, Sichuan Province, China; 3Department of Stomatology, Affiliated Hospital of Panzhihua University, Panzhihua 617000, Sichuan Province, China
  • Received:2022-06-25 Accepted:2022-08-01 Online:2023-07-08 Published:2022-11-28
  • Contact: Wang Pin, Master, Attending physician, Department of Prosthodontics, Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou 646000, Sichuan Province, China
  • About author:Luo Wenhao, Master candidate, Department of Prosthodontics, Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou 646000, Sichuan Province, China
  • Supported by:
    the Medical Research Project of Sichuan Province, No. S19023 (to LM); Science and Technology Plan Project of Luzhou City, No. 2021-JYJ-68 (to HHX)

摘要:


文题释义:

Tideglusib:是一种噻二唑烷酮类的小分子药物,是糖原合酶激酶3β的非ATP竞争性抑制剂,该药物最开始应用于阿尔茨海默症等神经退行性疾病的临床研究中,可改善学习和记忆水平,诱导神经元的再生,并有少量动物实验证明其可以促进骨缺损的修复。
Wnt/β-catenin经典信号通路:Wnt/β-catenin经典通路的信号传递包括3个环节:膜上的Wnt信号转导、细胞质中β-catenin的稳定和核移位以及细胞核中Wnt靶基因的激活。作为经典通路参与了细胞的多种生理功能,是间充质干细胞生理活动的决定性调节因素,在成骨代谢活动中发挥着重要作用。

背景:高糖环境能够抑制骨髓间充质干细胞的增殖和成骨分化能力,如何提高成骨细胞在高糖状态下的生物学活性,是改善糖尿病患者种植体骨结合的关键。
目的:探究非ATP竞争性的特异性糖原合酶激酶3β(glycogen synthase kinase-3β,GSK-3β)抑制剂Tideglusib在高糖微环境下对大鼠骨髓间充质干细胞成骨分化的影响。
方法:采用全骨髓贴壁法培养并纯化大鼠骨髓间充质干细胞,将骨髓间充质干细胞分为4组:正常对照组(5.5 mmol/L葡萄糖),Tideglusib+正常对照组(5.5 mmol/L葡萄糖+20 nmol/L Tideglusib),高糖组(25.5 mmol/L葡萄糖),Tideglusib+高糖组(25.5 mmol/L葡萄糖+20 nmol/L Tideglusib)。①CCK-8法检测细胞的增殖情况;②成骨诱导培养4,7 d后检测碱性磷酸酶的活性;③成骨诱导培养21 d后采用茜素红染色检测钙化结节的形成;④细胞接种24 h后鬼笔环肽染色观察细胞的初期黏附形态;⑤RT-qPCR检测成骨基因Runx2、OPN的mRNA表达,Western blot检测β-catenin和p-GSK-3β的蛋白表达。
结果与结论:①Tideglusib(20 nmol/L)不仅显著促进骨髓间充质干细胞的增殖(P < 0.05),还能逆转高糖环境对骨髓间充质干细胞增殖的抑制作用(P < 0.05);②Tideglusib(20 nmol/L)显著减轻高糖环境对碱性磷酸酶活性的抑制作用(P < 0.05),并促进高糖状态下钙化结节产生(P < 0.05);③Tideglusib(20 nmol/L)能够改善骨髓间充质干细胞被高糖环境破坏的黏附形态;④与高糖组比较,在高糖环境下Tideglusib(20 nmol/L)可上调成骨基因Runx2、OPN的mRNA表达(P < 0.05);⑤与高糖组比较,在高糖环境下Tideglusib(20 nmol/L)可上调Wnt/β-catenin信号通路相关靶点β-catenin蛋白的表达,下调p-GSK-3β蛋白的表达(P < 0.05);⑥结果表明,Tideglusib(20 nmol/L)能够通过激活Wnt/β-catenin信号通路从而逆转高糖环境对骨髓间充质干细胞初期黏附形态的破坏以及对细胞增殖和成骨分化的抑制。
https://orcid.org/0000-0002-6666-7735 (罗文豪) 
中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: Tideglusib, 骨髓间充质干细胞, 高糖微环境, 细胞增殖, 成骨分化, Wnt/β-catenin, 黏附形态, 骨桥蛋白

Abstract: BACKGROUND: High glucose condition can inhibit the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells, and how to improve the biological activity of osteoblasts in high glucose conditions is the key to improve osseointegration in diabetic patients.  
OBJECTIVE: To investigate the effect of Tideglusib, a non-ATP-competitive specific glycogen synthase kinase-3β (GSK-3β) inhibitor, on the osteogenic differentiation of rat bone marrow mesenchymal stem cells under high glucose conditions.
METHODS: Rat bone marrow mesenchymal stem cells were cultured and purified by whole bone marrow apposition method. Bone marrow mesenchymal stem cells were divided into four groups as follows: normal control group (5.5 mmol/L glucose), Tideglusib group (5.5 mmol/L glucose + 20 nmol/L Tideglusib), high glucose group (25.5 mmol/L glucose), and Tideglusib + high glucose group (25.5 mmol/L glucose+20 nmol/L Tideglusib). (1) The proliferation activities of cells were detected by CCK-8 assay. (2) Alkaline phosphatase activity was detected at 4 and 7 days after osteogenic differentiation in each group. (3) Calcium nodules were detected by alizarin red staining at 21 days after osteogenic differentiation in each group. (4) Phalloidin staining was used to observe the adhesion morphology of each group after 24 hours of inoculation. (5) RT-qPCR was used to detect the mRNA expression of osteogenic genes Runx2 and OPN. Western blot assay was used to detect the protein expression of β-catenin and p-GSK-3β.  
RESULTS AND CONCLUSION: (1) Tideglusib (20 nmol/L) not only significantly promoted the proliferation of bone marrow mesenchymal stem cells (P < 0.05), but also reversed the inhibitory effect of the high glucose on the proliferation of bone marrow mesenchymal stem cells (P < 0.05). (2) Tideglusib (20 nmol/L) significantly reduced the inhibitory effect of high glucose conditions on alkaline phosphatase activity (P < 0.05) and promoted the formation of calcified nodules under high glucose conditions (P < 0.05). (3) Tideglusib (20 nmol/L) could improve the adhesion morphology of bone marrow mesenchymal stem cells damaged by high glucose conditions. (4) Compared with the high glucose group, Tideglusib (20 nmol/L) up-regulated the mRNA expression of osteogenic genes Runx2 and OPN under the high glucose conditions (P < 0.05). (5) Compared with the high glucose group, Tideglusib (20 nmol/L) upregulated the expression of Wnt/β-catenin pathway related target β-catenin protein and down-regulated the expression of p-GSK-3β protein under high glucose conditions (P < 0.05). (6) The results showed that Tideglusib (20 nmol/L) could reverse the damage of high glucose conditions on the initial adhesion morphology, cell proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells by activating Wnt/β-catenin signaling pathway.

Key words: Tideglusib, bone marrow mesenchymal stem cell, high glucose microenvironment, cell proliferation, osteogenic differentiation, Wnt/β-catenin, adhesion morphology, osteopontin

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