Geometric Mean of 5S rRNA and MiR-16 as a Suitable Normalizer in Esophageal Cancer
Publish place: Journal of Cell and Molecular Research، Vol: 8، Issue: 2
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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JR_JCMR-8-2_002
تاریخ نمایه سازی: 2 آبان 1396
Abstract:
Esophageal squamous cell carcinoma (ESCC) is a deadly cancer with poor prognosis. In this regard, early diagnosis is of vital importance to cure the tumor in its early stages. Novel cancer diagnostic and therapeutic approaches have been recently introduced based on microRNAs (miRNAs). Also, accurate normalization using appropriate referencegenes is a critical step in miRNA expression studies. In this study, we aimed to identify appropriate reference genes for miRNA quantification in serum samples of ESCC. In this case and control experimental study, two statistical algorithms including GeNorm and NormFinder were used to evaluate the suitability of miR-16 and 5S rRNA andtheir geometric mean as reference genes. Then, relative expression of miR-451 and miR-24 were evaluated while different normalizer including miR-16, 5S rRNA and their geometric mean were applied. Both GeNorm and NormFinder analyses showed that geometric mean of miR-16 and 5S rRNA is the most stable reference gene in thesesamples. Also, our data showed that choosing an inappropriate normalizer could change the relative expression of target genes of miR-451 and miR-24 in ESCC samples which emphasize on the importance of selecting a reliable internal control in expression analyses. We demonstrated that geometric mean of two reference genes could increasethe reliability of normalizers and also by using geometric mean as reference gene, relative expression of different target is closer to reality
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Authors
Samaneh Khazaei
Division of Genetics, Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran
Sedigheh Gharbi
Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
Seyed Javad Mowla
Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran