Fan Chong-Lang, Jiang Jian, Liu Hu-Cheng, Yang Dong
Department of Orthopedics, The First Affiliated Hospital of Nanchang University Nanchang 330006, China.
Department of Orthopedics, The First Affiliated Hospital of Nanchang University Nanchang 330006, China ; Department of Orthopedics, The People's Hospital of Shangrao Shangrao 334000, China.
Int J Clin Exp Med. 2015 Sep 15;8(9):15563-8. eCollection 2015.
In the present study, we examined both FOXM1 mRNA and protein expression by Real-time quantitative PCR (qRT-PCR) and Western blot and investigate the expression of the human FOXM1 by Immunohistochemistry (IHC), and identify their potential roles in prognosis for patients with osteosarcoma.
FOXM1 mRNA and protein expression levels were detected by RT-PCR and Western blot assays, respectively. Then, IHC was performed to analyze the association of FOXM1 expression in 83 osteosarcoma tissues with clinicopathological factors and survival of patients.
The expression levels of FOXM1 mRNA were found to be significantly increased in osteosarcoma tissues compared to noncancerous bone tissues (P = 0.0313). Simultaneously, western blot analysis showed that the protein level of FOXM1 in osteosarcoma tissues was significantly higher than that in noncancerous bone tissues. Kaplan-Meier analysis with the log-rank test indicated that high FOXM1 expression had a significant impact on overall survival (P = 0.0001).
Our data showed that FoxM1 was upregulated in osteosarcoma tissues, and high expression of FoxM1 was correlated with a poor prognosis of patients with osteosarcoma. FoxM1 may function as a valuable prognostic biomarker for osteosarcoma.
在本研究中,我们通过实时定量聚合酶链反应(qRT-PCR)和蛋白质免疫印迹法检测了叉头框蛋白M1(FOXM1)的mRNA和蛋白质表达,并通过免疫组织化学(IHC)研究了人FOXM1的表达,以确定它们在骨肉瘤患者预后中的潜在作用。
分别通过逆转录聚合酶链反应(RT-PCR)和蛋白质免疫印迹法检测FOXM1的mRNA和蛋白质表达水平。然后,进行免疫组织化学分析83例骨肉瘤组织中FOXM1表达与临床病理因素及患者生存情况的相关性。
与非癌性骨组织相比,骨肉瘤组织中FOXM1的mRNA表达水平显著升高(P = 0.0313)。同时,蛋白质免疫印迹分析表明,骨肉瘤组织中FOXM1的蛋白质水平显著高于非癌性骨组织。采用对数秩检验的Kaplan-Meier分析表明,高FOXM1表达对总生存期有显著影响(P = 0.0001)。
我们的数据表明,FoxM1在骨肉瘤组织中上调,且FoxM1的高表达与骨肉瘤患者的不良预后相关。FoxM1可能作为骨肉瘤一个有价值的预后生物标志物。