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中华细胞与干细胞杂志(电子版) ›› 2017, Vol. 07 ›› Issue (04) : 219 -223. doi: 10.3877/cma.j.issn.2095-1221.2017.04.006

所属专题: 文献

论著

补骨脂素对前列腺癌LNCap-AD细胞增殖的影响及其分子机制研究
陈书尚1,(), 翁铭芳1, 王水良1, 路君1, 谭建明1   
  1. 1. 350025 福州,厦门大学附属东方医院(福州总医院)泌尿外科
  • 收稿日期:2017-05-04 出版日期:2017-08-01
  • 通信作者: 陈书尚
  • 基金资助:
    国家自然科学基金青年创新基金(81402107); 福建省自然基金面上项目(2016J01475)

Investigation of effect of psoralen on proliferation of prostate cancer LNCap-AD cells and its underlying molecular mechanism

Shushang Chen1,(), Mingfang Weng1, Shuiliang Wang1, Jun Lu1, Jianming Tan1   

  1. 1. Department of Urology, Fuzhou General Hospital, Xiamen University, Fuzhou 350025, China
  • Received:2017-05-04 Published:2017-08-01
  • Corresponding author: Shushang Chen
  • About author:
    Corresponding author:Chen Shushang, Email:
引用本文:

陈书尚, 翁铭芳, 王水良, 路君, 谭建明. 补骨脂素对前列腺癌LNCap-AD细胞增殖的影响及其分子机制研究[J]. 中华细胞与干细胞杂志(电子版), 2017, 07(04): 219-223.

Shushang Chen, Mingfang Weng, Shuiliang Wang, Jun Lu, Jianming Tan. Investigation of effect of psoralen on proliferation of prostate cancer LNCap-AD cells and its underlying molecular mechanism[J]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2017, 07(04): 219-223.

目的

观察补骨脂素对体外培养的前列腺癌LNCaP-AD细胞增殖的抑制作用,并探讨补骨脂素抑制前列腺癌的作用机制。

方法

体外培养前列腺癌LNCaP-AD细胞,加入不同浓度的补骨脂素,CCK-8法检测细胞增殖抑制率、实时荧光定量PCR检测细胞AR mRNA的表达、Western Blot检测细胞PCNA和AR蛋白表达。采用单因素方差分析进行组间均数比较。

结果

与对照组相比,30、50、100 μg/ml补骨脂素组LNCaP-AD细胞存活率均明显下降(P < 0.05),补骨脂素对LNCaP-AD细胞增殖的抑制作用呈浓度-时间依赖性。实时荧光定量PCR检测结果显示,与对照组(1.00±0.00)相比,30 μg/ml组AR mRNA表达上调(1.63±0.04,t =?17.72,P < 0.01),50 μg/ml组AR mRNA表达无明显变化(0.98±0.04,t = 0.66,P = 0.53)、而100 μg/ml组的AR mRNA表达则明显降低(0.46±0.07,t = 15.18,P < 0.01)。Western blot法检测结果显示,30 μg/ml、50 μg/ml、100 μg/ml的补骨脂素干预48 h后,LNCaP-AD细胞PCNA蛋白表达均显著降低(11.88±0.21 vs 10.61±0.17 vs 6.62±0.13 vs 2.71±0.43, F = 68.53, P < 0.01)。100 μg/ml的补骨脂素可明显降低LNCaP-AD细胞AR蛋白的表达水平(0.43±0.06 vs 0.87±0.04,t = 6.04,P < 0.01)。

结论

补骨脂素能在体外抑制前列腺癌LNCaP-AD细胞增殖,且呈剂量-时间依赖性,其机制可能与其下调LNCaP-AD细胞PCNA表达和影响AR表达有关。

Objective

To explore the influence of psoralen on the proliferation of prostate cancer LNCaP-AD cells and its mechanism.

Methods

Psoralen with different concentration was added into LNCaP-AD cells cultured in vitro. The effect of psoralen on the proliferation inhibition of LNCaP-AD cells was detected by CCK-8. The expressions of AR mRNA and protein, as well as PCNA protein, were respectively determined by real time PCR and Western blot.

Results

CCK-8 test showed that psoralen significantly inhibited the proliferation of LNCaP-AD cells in a dose- and time-dependent manner (P < 0.05) . Real time PCR showed that the expression of AR mRNA in LNCaP-AD cells was up-regulated by 30 μg/ml psoralen (1.63±0.04, t = 17.72, P < 0.01) , down-regulated by 100 μg/ml psoralen (0.46±0.07, t = 15.18, P < 0.01) and had no difference by 50 μg/ml psoralen (0.98±0.04, t = 0.66, P = 0.53) when compared with the control group (1.00±0.00) . Western blot showed that the protein expression of PCNA was down-regulated by 30 μg/ml, 50 μg/ml and 100 μg/ml psoralen in a dose-dependent manner compared (11.88?± 0.21 vs 10.61±0.17 vs 6.62?±?0.13 vs 2.71±0.43, F = 68.53, P < 0.01) . The protein expression level of AR was significantly down-regulated by 100 μg/ml psoralen compared with the control group (0.43?±0.06 vs 0.87±0.04, t = 6.04, P < 0.01) .

Conclusion

Psoralen can inhibit the proliferation of LNCaP-AD cells in a dose- and time-dependent manner in vitro. The possible mechanism lays in the down-regulation of PCNA and the influence of AR expression in LNCaP-AD cells.

表1 AR及β-Actin基因引物序列
表2 不同培养时间下补骨脂素体外对LNCaP-AD细胞的生存率的影响(±s
图1 补骨脂素对LNCaP-AD细胞AR mRNA表达的影响(n= 6)
表3 补骨脂素对LNCaP-AD细胞PCNA蛋白表达的影响(±s
图2 Western blot法检测补骨脂素对LNCaP-AD细胞PCNA和AR蛋白表达的影响
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