首页|More attention should be paid on the interpretation of gene expression data
More attention should be paid on the interpretation of gene expression data
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NETL
NSTL
万方数据
维普
Molecular profiling of gene expression is important for determining signatures in cancer progression and diagnosis.For this purpose,polymerase chain reactionbased techniques are preferentially used as a feasible and sensitive approach.Nevertheless,when relative quantitative analyses are performed on gene expression,the interpretation of mathematical equations must be carefully done.This letter to the editor is focused on recently published gene expression data in World Journal of Gastroenterology by Ozmen et al demonstrating increased levels of LYVE-1,VEGFR-3 and CD44 genes in gastric cancer samples compared to nonneoplastic gastric tissues.However,there are major concerns about misinterpretation of the gene expression data obtained with the 2-△△ct relative quantitative method.In the study,2-△△Ct values calculated for many samples were smaller than 1 (2-△△ct ＜ 1) which indicate decreased levels of LYVE-1,VEGFR-3 and CD44 gene expression in the gastric cancer tissues.This unfortunate mistake is an important example showing how a simple error in the interpretation of relative-quantitative gene expression data may result in misleading scientific conclusions.In this letter,a brief explanation of the 2-△△ct method is given.In addition,the importance of technical quality and interpretation in gene expression studies is discussed.
NETL
NSTL
万方数据
维普
