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Selection of suitable reference genes for reverse transcriptionquantitative polymerase chain reaction analysis of neuronal cells differentiated from bone mesenchymal stem cells

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Reverse transcriptionquantitative polymerase chain reaction (RTqPCR) is a technique widely used for the quantification of mRNA transcription, It is well recognized that the reference genes used in RTqPCR require appropriate validation to ensure that gene expression is unaffected by experimental conditions. The differentiation of bone mesenchymal stem cells (BMSCs) into neurons is important in the treatment of nerve injury. In gene expression analysis of the differentiation of BMSCs into neuronal cells by, the commonly used reference genes for RNA analysis are often selected without any preliminary evaluation of their suitability. The present study aimed to evaluate the mRNA expression levels of 11 putative reference genes, including ACTB, ARBP, B2M, CYCA, GAPDH, GUSB, HPRT, PPIA, RPL13A, TBP and PGK1, in order to select the most suitable reference genes for RTqPCR of the differentiation of neuronal cells by BMSCs. The mRNA expression levels of the 11 putative reference genes were examined using RTqPCR in rat BMSCs differentiated into neuronal cells. Normal BMSCs and three types of rat BMSCs, which were chemically induced to differentiate into neurons using neurotrophic cytokines and coculture with retinal cells. The geNorm, NormFinder and BestKeeper software programs were used to select the most suitable reference genes. The results of the analyses using the three software programs demonstrated that RPL13A was the most stable among all the groups, while ACTB was the least stable. The combination of CYCA and PPIA reference genes contributed the most to increasing stability. The suitability of selected reference genes requires previous preselection in every investigation. Based on the three software programs, RPL13A, and the combination of CYCA and PPIA were identified as the most suitable reference genes for RTqPCR in neuronal cells differentiated from BMSCs.
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Document Type: Research Article

Affiliations: Department of Ophthalmology, Second Hospital, Jilin University, Changchun, Jilin 130000, P.R. China

Publication date: August 1, 2015

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  • Molecular Medicine Reports is a monthly, peer-reviewed journal available in print and online, that includes studies devoted to molecular medicine, underscoring aspects including pharmacology, pathology, genetics, neurosciences, infectious diseases, molecular cardiology and molecular surgery. In vitro and in vivo studies of experimental model systems pertaining to the mechanisms of a variety of diseases offer researchers the necessary tools and knowledge with which to aid the diagnosis and treatment of human diseases.
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