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Stanniocalcin-1 protein expression profile and mechanisms in proliferation and cell death pathways in prostate cancer

机译:斯坦尼甲酰-1蛋白表达谱和前列腺癌中增殖和细胞死亡途径的机制

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摘要

Prostate cancer (PCa) is one of the most prevalent male tumours. Stanniocalcin-1 (STC1) is a glycoprotein and, although the role of STC1 in human cancer is poorly understood, it is suggested to be involved in the development and progression of different neoplasms. This study investigated the protein expression profile of STC1 in PCa and benign prostatic hyperplasia (BPH) samples and STC1 signalling during cell proliferation and cell death in vitro using cell lines. We found higher levels of STC1 in PCa when compared to BPH tissue and that STC1 inhibited forskolin stimulation of cAMP in PC-3 cells. A monoclonal antibody against STC1 was effective in reducing cell proliferation, in promoting cell cycle arrest, and in increasing apoptosis in the same cells. Since STC1 acts as a regulator of prostatic tissue signalling, we suggest that this protein is a novel candidate biomarker for prostate tumour clinical progression and a potential therapeutic target.
机译:前列腺癌(PCA)是最普遍的雄性肿瘤之一。 斯坦尼碱-1(STC1)是一种糖蛋白,但虽然STC1在人体癌症中的作用是较差的,但建议参与不同肿瘤的发展和进展。 本研究研究了在使用细胞系中细胞增殖和细胞死亡期间STC1在PCA和良性前列腺增生(BPH)样品和STC1信号传导中的蛋白质表达谱。 与BPH组织相比,我们在PCA中发现了较高水平的STC1,并且STC1抑制了PC-3细胞中的营养蛋白的刺激。 针对STC1的单克隆抗体有效降低细胞增殖,促进细胞循环骤停,以及增加同一细胞中的细胞凋亡。 由于STC1充当前列腺组织信号的调节器,因此该蛋白质是一种用于前列腺肿瘤临床进展和潜在治疗靶标的新候选生物标志物。

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