中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (29): 4650-4655.doi: 10.12307/2021.164

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

补肾健脾活血方含药血清干预过表达、沉默Beclin-1基因的MC-3T3-E1细胞增殖及碱性磷酸酶活性

郑维蓬1,胡伟坚2,赵国源2,魏合伟1,刘治军1,万  雷1,陈  胜1,廖志浩1   

  1. 1广州中医药大学第三附属医院,广东省广州市   510375;2广州中医药大学,广东省广州市   510006
  • 收稿日期:2020-10-15 修回日期:2020-10-17 接受日期:2020-11-26 出版日期:2021-10-18 发布日期:2021-06-02
  • 通讯作者: 魏合伟,博士,主任医师,广州中医药大学第三附属医院,广东省广州市 510375
  • 作者简介:郑维蓬,男,1986年生,2014年广州中医药大学毕业,硕士,主治医师,主要从事骨关节运动损伤疾病相关研究。
  • 基金资助:
    广东省中医药局科研项目(20191178),项目负责人:郑维蓬;广东省中医药局科研项目(20203011),项目负责人:魏合伟

Effects of Bushen Jianpi Huoxue Recipe on cell proliferation and alkaline phosphatase activity in Beclin-1 overexpressing and silencing MC-3T3-E1 cells

Zheng Weipeng1, Hu Weijian2, Zhao Guoyuan2, Wei Hewei1, Liu Zhijun1, Wan Lei1, Chen Sheng1, Liao Zhihao1   

  1. 1The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510375, Guangdong Province, China; 2Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
  • Received:2020-10-15 Revised:2020-10-17 Accepted:2020-11-26 Online:2021-10-18 Published:2021-06-02
  • Contact: Wei Hewei, MD, Chief physician, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510375, Guangdong Province, China
  • About author:Zheng Weipeng, Master, Attending physician, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510375, Guangdong Province, China
  • Supported by:
    the Scientific Research Projects of Guangdong Provincial Administration of Traditional Chinese Medicine, No. 20191178 (to ZWP) and 20203011 (to WHW)

摘要:

文题释义:
骨质疏松症:是以骨量减少、骨组织显微结构改变和骨折危险频度增加为特征的一种全身性骨骼系统疾病,是中老年人的常见病和多发病之一。骨质疏松的具体发病机制并不完全清楚,但实为骨形成和骨吸收失衡导致。骨代谢动态平衡的维持由成骨细胞与破骨细胞精细调节,两种细胞功能异常在骨质疏松症发病中极其重要。
Beclin-1基因:是细胞自噬关键的正调控因子,也称BECN1基因,是酵母ATG6的同系物。Beclin-1蛋白CCD区能与Vps34稳定结合,形成Beclin-1-Vps34复合体,诱导自噬体双层膜结构形成,促进自噬。研究发现,自噬基因Beclin-1敲除导致成骨细胞分化和矿化能力下降,提示Beclin-1在骨代谢中也具有重要作用。

背景:成骨细胞是参与骨代谢动态平衡精细调节的重要细胞之一,其功能异常在骨质疏松症发病中极其重要。研究发现自噬基因Beclin-1敲除导致成骨细胞分化和矿化能力下降,提示Beclin-1在骨代谢中具有重要调控作用。
目的:补肾健脾活血方含药血清对过表达、沉默Beclin-1基因的MC-3T3-E1细胞增殖及碱性磷酸酶活性的影响。
方法:构建Beclin-1过表达及沉默重组慢病毒载体,制备补肾健脾活血方含药血清。将MC-3T3-E1成骨细胞分成6组,分别为空白血清+空病毒组、空白血清+Beclin-1过表达组、空白血清+Beclin-1沉默组、含药血清+空病毒组、含药血清+Beclin-1过表达组、含药血清+Beclin-1沉默组;根据组别不同进行干预,CCK-8法检测细胞增殖情况,流式细胞仪检测细胞周期,碱性磷酸酶试剂盒检测碱性磷酸酶活性。
结果与结论:①与空白血清+空病毒组比较,含药血清+空病毒组、空白血清+Beclin-1过表达组及含药血清+Beclin-1过表达组的细胞增殖能力和碱性磷酸酶活性均显著增强,空白血清+Beclin-1沉默组、含药血清+ Beclin-1沉默组的细胞增殖能力和碱性磷酸酶活性均降低,其中含药血清+Beclin-1过表达组、空白血清+Beclin-1沉默组的变化最明显;②空白血清+Beclin-1过表达组和含药血清+Beclin-1过表达组处于G2/M期的细胞比例较高;空白血清+空病毒组、空白血清+Beclin-1沉默组和含药血清+ Beclin-1沉默组处于G0/G1期的细胞比例较高;空白血清+ Beclin-1过表达组和含药血清+空病毒组处于S期的细胞比例较高;③结果表明,过表达Beclin-1、补肾健脾活血方含药血清可提高MC-3T3-E1细胞增殖能力及碱性磷酸酶活性,尤其二者同时干预时作用最强,而沉默Beclin-1则降低MC-3T3-E1细胞增殖能力及碱性磷酸酶活性,补肾健脾方含药血清在某种程度上可抑制Beclin-1沉默的不良影响。

https://orcid.org/0000-0001-7257-4482 (郑维蓬)

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: MC-3T3-E1细胞, 慢病毒, 转染, Beclin-1, 自噬, 中药, 碱性磷酸酶

Abstract: BACKGROUND: Osteoblasts are one of the important cells involved in the fine regulation of the dynamic balance of bone metabolism, and their dysfunction is extremely essential for the pathogenesis of osteoporosis. Studies have found that knockout of Beclin-1, an autophagy gene, leads to a decrease in osteoblast differentiation and mineralization, suggesting that Beclin-1 has an important regulatory role in bone metabolism.
OBJECTIVE: To explore the effects of Bushen Jianpi Huoxue Recipe on cell proliferation and alkaline phosphatase activity in Beclin-1 overexpressing and silencing MC-3T3-E1 cells
METHODS: Recombinant lentiviral vectors overexpression and silencing Beclin-1 were constructed, and drug-containing serum of Bushen Jianpi Huoxue Recipe was prepared. MC-3T3-E1 cells were divided into six groups: blank serum + blank virus group, blank serum + Beclin-1 overexpression group, blank serum + Beclin-1 silence group, drug serum + blank virus group, drug serum + Beclin-1 overexpression group, AND drug serum + Beclin-1 silence group. Interventions in each group were accordingly carried out. Cell proliferation was detected using cell counting kit-8, cell cycle was determined using flow cytometry, and alkaline phosphatase activity was measured using an alkaline phosphatase kit. 
RESULTS AND CONCLUSION: Compared with the blank serum + blank virus group, the cell proliferation and alkaline phosphatase activity were significantly increased in the drug serum + blank virus group, blank serum + Beclin-1 overexpression group, and drug serum + Beclin-1 overexpression group, and significantly decreased in the blank serum + Beclin-1 silence group and drug serum + Beclin-1 silence group. The most obvious changes were found in the drug serum + Beclin-1 overexpression group and blank serum + Beclin-1 silence group. From the perspective of cell cycle in each group, the proportion of cells in G2/M phase was relatively higher in the blank serum + Beclin-1 overexpression group and drug serum + Beclin-1 overexpression group; the proportion of cells in G0/G1 phase was relatively higher in the blank serum + blank virus group, blank serum + Beclin-1 silence group and drug serum + Beclin-1 silence group; the proportion of cells in S phase was relatively higher in the blank serum + Beclin-1 overexpression group and drug serum + blank virus group. To conclude, overexpression of Beclin-1 and serum containing Bushen Jianpi Huoxue Recipe, especially their combination, can improve the proliferation and alkaline phosphatase activity of MC-3T3-E1 cells. Whereas, silence of Beclin-1 can reduce the proliferation and alkaline phosphatase activity of MC-3T3-E1 cells, and serum containing Bushen Jianpi Huoxue Recipe can inhibit the adverse effects of Beclin-1 silence to some extent.

Key words: MC-3T3-E1 cells, lentivirus, transfection, Beclin-1, autophagy, traditional Chinese medicine, alkaline phosphatase

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