中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (16): 2582-2586.doi: 10.3969/j.issn.2095-4344.2017.16.021

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

鼠妇提取物可抑制ILK调节骨桥蛋白诱导的血管平滑肌细胞增殖

段哲萍1,于新江2,李菁菁3,赵  娟3   

  1. 河北省人民医院,1肿瘤二科,2心脏外科,河北省石家庄市  050051;3河北医科大学细胞生物教研室,河北省石家庄市  050017
  • 修回日期:2017-01-06 出版日期:2017-06-08 发布日期:2017-07-06
  • 通讯作者: 李菁菁,博士,副教授,河北医科大学细胞生物教研室,河北省石家庄市 050017
  • 作者简介:段哲萍,女,1975年生,河北省石家庄市人,汉族,2013年河北医科大学毕业,硕士,主治医师,主要从事肿瘤综合治疗研究。
  • 基金资助:

    河北省中医药管理局课题(2015138);河北省高等学校科学技术研究青年基金(2011177)

Pillbug extracts inhibit osteopontin-induced vascular smooth muscle cell proliferation by modulation of integrin kinase protein pathway

Duan Zhe-ping1, Yu Xin-jiang2, Li Jing-jing3, Zhao Juan3   

  1. 1Second Department of Oncology, 2Department of Cardiac Surgery, Hebei General Hospital, Shijiazhuang 050051, Hebei Province, China; 3Department of Cytobiology, Hebei Medical University, Shijiazhuang 050017, Hebei Province, China
  • Revised:2017-01-06 Online:2017-06-08 Published:2017-07-06
  • Contact: Li Jing-jing, M.D., Associate professor, Department of Cytobiology, Hebei Medical University, Shijiazhuang 050017, Hebei Province, China
  • About author:Duan Zhe-ping, Master, Attending physician, Second Department of Oncology, Hebei General Hospital, Shijiazhuang 050051, Hebei Province, China
  • Supported by:

     the Subject of Hebei Province Administration of Traditional Chinese Medicine, No. 2015138; the Scientific Research Foundation for the Youth of High Education in Hebei Province, No. 2011177

摘要:

文章快速阅读:

文题释义:
增殖细胞核抗原:
由Miyachi等于1978年在系统性红斑狼疮患者的血清中首次发现并命名,因其只存在于正常增殖细胞及肿瘤细胞内而得名,以后的研究发现增殖细胞核抗原与细胞DNA合成关系密切,在细胞增殖的启动上起重要作用,是反映细胞增殖状态的良好指标。
整合素:是由α和β亚单位组成的异源二聚体跨膜受体,血管平滑肌细胞主要表达整合素αvβ3,它的主要配体包括骨桥蛋白、纤连蛋白和玻黏蛋白等。由于整合素本身不具有激酶活性,它需要通过β亚单位的胞内区与talin、paxillin和ILK等相互作用,将其募集到胞膜内侧,共同形成黏着斑复合物,然后启动多条信号转导途径,从而导致细胞骨架重组,引起血管平滑肌细胞的黏附和迁移,参与血管炎性增生和血管重塑的过程。

 

摘要
背景:
前期实验通过MTT法及细胞划痕实验检测出鼠妇可影响血管平滑肌细胞的增殖和迁移过程,但其相关作用机制尚不清楚。
目的:探讨鼠妇对于骨桥蛋白诱导的血管平滑肌细胞增殖影响的相关分子机制。
方法:按常规方法培养 SD 大鼠胸腹主动脉血管平滑肌细胞,选取3-5代细胞用于实验。实验分为8组:对照组、骨桥蛋白组、鼠妇水提取物(0.5,1.0,2.0 g/L)+骨桥蛋白组、鼠妇乙酸乙酯提取物(0.25,0.5,1.0 g/L)+骨桥蛋白组。加入相应药物培养24 h后,收集细胞,采用Western bolt检测PCNA、ILK蛋白表达水平。
结果与结论:①在鼠妇水提取物及乙酸乙酯提取物的作用下血管平滑肌细胞PCNA蛋白表达下降,其中0.5 g/L的鼠妇水提取物组和1.0 g/L的鼠妇乙酸乙酯提取物组抑制作用最明显,分别为骨桥蛋白组的77.8%和74.1%;②低质量浓度(0.5 g/L)的鼠妇水提取物抑制ILK表达作用明显,是骨桥蛋白组的81.4%;鼠妇乙酸乙酯提取物作用下血管平滑肌细胞ILK的表达水平没有明显改变;③结果表明,鼠妇水提取物及乙酸乙酯提取物均可抑制骨桥蛋白诱导的血管平滑肌细胞增殖,且鼠妇水提取物该作用可能与ILK蛋白通路有关。

 

 

ORCID: 0000-0002-8880-5772(段哲萍)

关键词: 组织构建, 组织工程, 鼠妇, 骨桥蛋白, PCNA, ILK

Abstract:

BACKGROUND: Pillbugs have been proved to exert an effect on the proliferation and migration of vascular 
smooth muscle cells (VSMCs) through MTT assay and scratch assay, but the mechanisms are poorly understood.
OBJECTIVE: To investigate the molecular mechanisms underlying pillbugs influencing osteopontin-induced VSMC migration and proliferation.
METHODS: VSMCs from Sprague-Dawley rat thoraco-abdominal aorta were cultured in a common medium, and 3-5 generations of cells were selected. There were eight groups: control, osteopontin, pillbug water extract (0.5, 1.0, and 2.0 g/L) with osteopontin, and pillbug ethyl acetate extract (0.25, 0.5, and 1.0 g/L) with osteopontin groups. After 24 hours of culture, the expression levels of proliferating cell nuclear antigen (PCNA) and integrin kinase (ILK) were detected by western blot assay.
RESULTS AND CONCLUSION: Pillbug water and ethyl acetate extracts both inhibited the expression of PCNA, especially when cultured in 0.5 g/L pillbug water extract (77.8% of the osteopontin group) and 1.0 g/L ethyl acetate extract (74.1% of the osteopontin group). 0.5 g/L pillbug water extract significantly downregulated ILK level induced by osteopontin, which was 81.4% of the osteopontin group, while pillbug ethyl acetate extract exposed no influence on ILK expression. These results reveal that pillbug water and ethyl acetate extracts both are able to inhibit osteopontin-induced VSMC proliferation, and the role of the pillbug water extract maybe associated with ILK protein pathway.

 

 

Key words: Beetles, Osteopontin, Proliferating Cell Nuclear Antigen, Tissue Engineering

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