XAF1 expression and regulatory effects of somatostatin on XAF1 in prostate cancer cells.

XAF1 expression and regulatory effects of somatostatin on XAF1 in prostate cancer cells.
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前列腺癌细胞中XAF1的表达及生长抑素对XAF1的调节作用

DOI:
10.1186/1756-9966-29-162
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发表时间:
2010-12-11
期刊:
Journal of experimental & clinical cancer research : CR
影响因子:
--
通讯作者:
Liu Z
Liu Z
中科院分区:
其他
文献类型:
--
作者:
Xing Z;Zhou Z;Yu R;Li S;Li C;Nilsson S;Liu Z

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背景 生长抑素通过诱导细胞凋亡抑制细胞增殖。XAF 1转录的下调可能发生在前列腺癌的发展过程中。研究生长抑素在前列腺癌细胞发生发展过程中对XAF 1表达的调控作用是一个有意义的课题。 方法 采用RT-PCR和Western blot检测人前列腺上皮细胞RWPE-1、雄激素依赖性前列腺癌LNCaP、雄激素非依赖性DU 145和PC 3细胞中XAF 1 mRNA和蛋白的表达。研究生长抑素及其类似物奥曲肽对XAF 1 mRNA和蛋白表达的调节作用。 结果 在RWPE-1细胞中检测到大量的XAF 1 mRNA和蛋白,而前列腺癌细胞LNCaP、DU 145和PC 3表现出较低的XAF 1表达。生长抑素和奥曲肽在所有前列腺癌细胞系中上调XAF 1 mRNA和蛋白表达。 结论 XAF 1的下调可能有助于前列腺癌的发展。生长激素抑制素增强XAF 1表达表明前列腺癌治疗的一种有希望的策略。
Background Somatostatin prevents cell proliferation by inducing apoptosis. Downregulation of the XAF1 transcript may occur during the development of prostate cancer. It is interesting to evaluate the potential regulatory effects of somatostatin on XAF1 expression during the development of prostate cancer cells. Methods XAF1 mRNA and protein expression in human prostate epithelial cells RWPE-1, androgen dependent prostate cancer LNCaP, and androgen independent DU145 and PC3 cells were evaluated using RT-PCR and Western blot. The regulation of XAF1 mRNA and protein expression by somatostatin and its analogue Octreotide was evaluated. Results Substantial levels of XAF1 mRNA and proteins were detected in RWPE-1 cells, whereas prostate cancer cells LNCaP, DU145 and PC3 exhibited lower XAF1 expression. Somatostatin and Octreotide up-regulated XAF1 mRNA and protein expression in all prostate cancer cell lines. Conclusions XAF1 down-regulation may contribute to the prostate cancer development. The enhanced XAF1 expression by somatostatin indicates a promising strategy for prostate cancer therapy.
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发表时间: 1986-09-11
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