应用化学 ›› 2023, Vol. 40 ›› Issue (4): 546-553.DOI: 10.19894/j.issn.1000-0518.220357

• 研究论文 • 上一篇    下一篇

基于电场调控的胆固醇基液晶薄膜对成纤维细胞生长分化的影响

陶雨晨1, 候晓慧1, 尹登科1,3, 杨晔1,2,3()   

  1. 1.安徽中医药大学药学院,合肥 230012
    2.药物制剂技术与应用安徽省重点实验室,合肥 230012
    3.现代药物制剂安徽省工程技术中心,合肥 230012
  • 收稿日期:2022-11-03 接受日期:2023-03-08 出版日期:2023-04-01 发布日期:2023-04-17
  • 通讯作者: 杨晔
  • 基金资助:
    国家自然科学基金面上项目(81874348);安徽省高校学科(专业)拔尖人才学术资助项目(gxbjZD2022027);安徽省药品监督管理局科技创新项目(AHYJ-KJ-202110)

Effect of Electric Field-Regulating Cholesterol-based Liquid Crystal Films on the Growth and Differentiation of Fibroblasts

Yu-Chen TAO1, Xiao-Hui HOU1, Deng-Ke YIN1,3, Ye YANG1,2,3()   

  1. 1.School of Pharmacy,Anhui University of Chinese Medicine,Hefei 230012,China
    2.Anhui Key Laboratory of Technology and Application of Pharmaceutical Preparations,Hefei 230012,China
    3.Anhui Engineering and Technology Center for Modern Pharmaceutical Preparations,Hefei 230012,China
  • Received:2022-11-03 Accepted:2023-03-08 Published:2023-04-01 Online:2023-04-17
  • Contact: Ye YANG
  • About author:Y.Yang@ahtcm.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(81874348);the Provincial Foundation for Discipline (Professional) Top Talent Talents of Colleges and Universities of Anhui Province of China(gxbjZD2022027);the Science and Technology Innovation Program of Drug Administration of Anhui(AHYJ-KJ-202110)

摘要:

通过外加电场对胆固醇-g-聚乳酸低聚物(Cholesteryl-oligo(L-lactic acid),CLA)薄膜的液晶有序性进行调节,并评价其对成纤维细胞黏附、增殖和分化的影响。采用差示扫描量热仪检测CLA聚合物液晶性;以外加直流电场调控薄膜液晶有序性,X射线衍射仪和偏光显微镜检测电场调控下CLA薄膜液晶有序性的改变;Cell Counting Kit-8试剂盒检测成纤维细胞在CLA薄膜上的黏附与增殖行为,免疫荧光染色法和蛋白免疫印迹法检测成纤维细胞表型转化特征蛋白α-平滑肌肌动蛋白(α-Smooth muscle actin, α-SMA)表达水平。结果表明,CLA聚合物具有液晶性,外加电场可通过诱导CLA液晶分子的有序排列调控CLA薄膜液晶性,CLA薄膜液晶性增强有利于成纤维细胞的增殖与α-SMA蛋白表达。说明电场调控可在不改变CLA聚合物薄膜基质材料组成的前提下,通过增加薄膜的液晶有序性,促进成纤维细胞向肌成纤维细胞表型转化。

关键词: 液晶, 聚合物, 胆固醇-g-聚乳酸低聚物, 直流电场, 成纤维细胞, 表型转化

Abstract:

The liquid crystal ordering of cholesterol-g-polylactic acid oligomer (CLA) film is regulated by external direct-current electric field, and its effects on the adhesion, proliferation and differentiation of fibroblasts are evaluated. The liquid crystalline properties of CLA polymer aredetected by differential scanning calorimeter. The CLA films is prepared under a direct-current electric field with different intensities, and the liquid crystal ordering is detected by X-ray diffractometer and polarized light microscope. The adhesion and proliferation of fibroblasts on the CLA films are detected by a Cell Counting Kit-8 kit. The expression of α-smooth muscle actin (α-SMA) is detected by immunofluorescence staining and western blotting. The results show that CLA polymer has liquid crystal property, and the external electric field could regulate the liquid crystal property of CLA film through inducing the arrangement of CLA molecules. The enhancement of liquid crystal property of CLA films isbeneficial to the proliferation of fibroblasts and the expression of α?-SMA protein. These results suggest that electric field could promote the phenotypic transformation of fibroblasts to myofibroblasts by increasing the liquid crystal ordering of CLA polymer film, without changing the composition of matrix materials.

Key words: Liquid crystal, Polymeric material, Cholesteryl-oligo(L-lactic acid), Direct-current electric field, Fibroblasts, Phenotypic transformation

中图分类号: