Preferential autoimmune response in prostate cancer to cyclin B1 in a panel of tumor-associated antigens.

Preferential autoimmune response in prostate cancer to cyclin B1 in a panel of tumor-associated antigens.
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DOI:
10.1155/2014/827827
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发表时间:
2014
影响因子:
4.1
通讯作者:
Zhang JY
Zhang JY
中科院分区:
医学3区
文献类型:
--
作者:
Dai L;Li J;Ortega R;Qian W;Casiano CA;Zhang JY

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先前的研究表明,前列腺癌 (PCa) 患者的血清含有与肿瘤相关抗原 (TAA) 发生反应的自身抗体。通过酶联免疫吸附测定 (ELISA) 和蛋白质印迹法,在 PCa、良性前列腺增生 (BPH) 和其他对照患者的 464 份血清中检测到细胞周期蛋白 B1 和其他 14 种 TAA 的自身抗体。随机选择的 PCa 患者血清中有 31.0% 检测到细胞周期蛋白 B1 自身抗体,而 BPH 患者血清中这一比例为 4.8%。进一步分析发现,早期PCa患者的血清中有31.4%含有抗细胞周期蛋白B1自身抗体,甚至在血清样本中前列腺特异性抗原(PSA)水平正常的患者中,也有29.4%观察到抗细胞周期蛋白B1阳性。 PCa中针对7种选定TAA(cyclin B1、survivin、p53、DFS70/LEDGFp75、RalA、MDM2和NPM1)的自身抗体累积阳性率达到80.5%,显着高于正常对照血清。总之,细胞周期蛋白 B1 自身抗体可能是早期 PCa 免疫诊断的潜在生物标志物,尤其对 PSA 水平正常的患者有用。这项研究进一步支持了这样的假设:定制的 TAA 阵列可用于增强抗 TAA 自身抗体检测,并且它可能构成 PCa 免疫诊断的有前途且强大的工具。
Previous studies have demonstrated that sera from patients with prostate cancer (PCa) contain autoantibodies that react with tumor-associated antigens (TAAs). Autoantibodies to cyclin B1 and fourteen other TAAs were detected by enzyme-linked immunosorbent assay (ELISA) and Western blotting in 464 sera from patients with PCa, benign prostatic hyperplasia (BPH), and other controls. Autoantibodies to cyclin B1 were detected in 31.0% of sera from randomly selected patients with PCa versus 4.8% in sera with BPH. In the further analysis, 31.4% of sera from PCa patients at the early stage contained anti-cyclin B1 autoantibody, and even 29.4% of patients who had normal prostate-specific antigen (PSA) levels in their serum samples were observed anti-cyclin B1 positive. The cumulative positive rate of autoantibodies against seven selected TAAs (cyclin B1, survivin, p53, DFS70/LEDGFp75, RalA, MDM2, and NPM1) in PCa reached 80.5%, significantly higher than that in normal control sera. In summary, autoantibody to cyclin B1 might be a potential biomarker for the immunodiagnosis of early stage PCa, especially useful in patients with normal PSA level. This study further supports the hypothesis that a customized TAA array can be used for enhancing anti-TAA autoantibody detection, and it may constitute a promising and powerful tool for immunodiagnosis of PCa.
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