期刊
EXPERIMENTAL DERMATOLOGY
卷 24, 期 10, 页码 742-747出版社
WILEY
DOI: 10.1111/exd.12759
关键词
keratinocyte; microarray; psoriasis; qRT-PCR; reference gene
类别
资金
- Austrian Science Fund [FWF: T545-B19]
- Austrian Science Fund (FWF) [T 545] Funding Source: researchfish
- Austrian Science Fund (FWF) [T545] Funding Source: Austrian Science Fund (FWF)
Reverse transcription polymerase chain reaction (qRT-PCR) has become a mainstay in many areas of skin research. To enable quantitative analysis, it is necessary to analyse expression of reference genes (RGs) for normalization of target gene expression. The selection of reliable RGs therefore has an important impact on the experimental outcome. In this study, we aimed to identify and validate the best suited RGs for qRT-PCR in human primary keratinocytes (KCs) over a broad range of experimental conditions using the novel bioinformatics tool 'RefGenes', which is based on a manually curated database of published microarray data. Expression of 6 RGs identified by RefGenes software and 12 commonly used RGs were validated by qRT-PCR. We assessed whether these 18 markers fulfilled the requirements for a valid RG by the comprehensive ranking of four bioinformatics tools and the coefficient of variation (CV). In an overall ranking, we found GUSB to be the most stably expressed RG, whereas the expression values of the commonly used RGs, GAPDH and B2M were significantly affected by varying experimental conditions. Our results identify RefGenes as a powerful tool for the identification of valid RGs and suggest GUSB as the most reliable RG for KCs.
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