Is Relative Quantification Dispensable for the Measurement of MicroRNAs as Serum Biomarkers in Germ Cell Tumors?

被引:0
作者
Spiekermann, Meike [1 ]
Dieckmann, Klaus-Peter [2 ]
Balks, Thomas [2 ]
Bullerdiek, Joern [1 ,3 ]
Belge, Gazanfer [1 ]
机构
[1] Univ Bremen, Ctr Human Genet, D-28359 Bremen, Germany
[2] Albertinen Hosp, Dept Urol, Hamburg, Germany
[3] Univ Rostock, Inst Med Genet, D-18055 Rostock, Germany
关键词
Biomarker; endogenous control; germ cell tumors; microRNA; real time PCR; testicular cancer; EXPRESSION; CANCER; RNA; IDENTIFICATION; MIR-371-3; DIAGNOSIS; MARKERS; PCR;
D O I
暂无
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background: Classical biomarkers alpha-fetoprotein, beta-human chorionic gonadotropin and lactate dehydrogenase (AFP, bHCG and LDH) are elevated in only 60% of all testicular germ cell tumor (TGCT) patients. microRNAs (miRNAs) are a novel class of useful biomarkers in cancer and miRNAs of the miR-371-3 cluster were proven to be valuable markers for TGCT patients. Materials and Methods: We compared the Ct and Delta Ct values of miR-371-3 by real time PCR (qPCR) with and without 18S rRNA for normalization. Expression of miR-371a-3p, miR-372 and miR-373-3p was measured in 25 TGCTs, 4 non-TGCTs and 17 age-matched male controls. Results: A highly positive correlation between Ct and Delta Ct values was found in all samples. The highest correlation was found for miR-371a-3p (R2: 0.956). Conclusion: Results show that qPCR can be used without endogenous control for analyzing miR-371-3 in the serum of patients with testicular cancer and male controls if the technical procedure is performed under controlled conditions.
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页码:117 / 121
页数:5
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