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CLC number: Q7; R73

On-line Access: 2011-02-04

Received: 2010-03-28

Revision Accepted: 2010-08-08

Crosschecked: 2010-12-31

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Journal of Zhejiang University SCIENCE B 2011 Vol.12 No.2 P.149-155

http://doi.org/10.1631/jzus.B1000110


A relative quantitative method to detect OCT4A gene expression by exon-junction primer and locked nucleic acid-modified probe


Author(s):  Jian-jun Ren, Xing-kai Meng

Affiliation(s):  Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; more

Corresponding email(s):   Mengxingkai001@163.com

Key Words:  OCT4A, Locked nucleic acid (LNA), Real-time polymerase chain reaction (PCR)


Jian-jun Ren, Xing-kai Meng. A relative quantitative method to detect OCT4A gene expression by exon-junction primer and locked nucleic acid-modified probe[J]. Journal of Zhejiang University Science B, 2011, 12(2): 149-155.

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author="Jian-jun Ren, Xing-kai Meng",
journal="Journal of Zhejiang University Science B",
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doi="10.1631/jzus.B1000110"
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%T A relative quantitative method to detect OCT4A gene expression by exon-junction primer and locked nucleic acid-modified probe
%A Jian-jun Ren
%A Xing-kai Meng
%J Journal of Zhejiang University SCIENCE B
%V 12
%N 2
%P 149-155
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%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1000110

TY - JOUR
T1 - A relative quantitative method to detect OCT4A gene expression by exon-junction primer and locked nucleic acid-modified probe
A1 - Jian-jun Ren
A1 - Xing-kai Meng
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SP - 149
EP - 155
%@ 1673-1581
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PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1000110


Abstract: 
Objective: OCT4A has been known to play a critical role in the maintenance of pluripotency of embryonic stem cells. Recent research has shown that OCT4A is also expressed in partial tumor cell lines and tissues. This study is aimed to develop a real-time reverse transcriptase polymerase chain reaction (RT-PCR) assay for relative quantitative detection of OCT4A mRNA and discrimination from OCT4B, pseudogene, and genomic contaminations. Methods: A locked nucleic acid (LNA)-modified probe was designed to discern the single base difference 352A/C to identify OCT4A mRNA. An exon-junction primer was designed to avoid false positive caused by genomic contaminations. In addition, a house keeping gene glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was measured in parallel to normalize the differences between samples and operations. Results: Experiments showed that the newly established RT-PCR assay amplified the OCT4A mRNA selectively; OCT4A analogues gave negative signals. Cell lines nTERA-2 and HepG2 showed positive results in OCT4A expression, while for HeLa and 293 cell lines, as well as primary peripheral blood mononuclear cells (PBMCs), OCT4A expression was negative. Additionally, the relative quantity of OCT4A mRNA was calculated by cycle threshold (Ct) method and house keeping gene normalization. Conclusions: This technique proved to be effective for relative quantitation of OCT4A mRNA with high specificity.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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