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Postmenopausal Osteoporosis reference genes for qPCR expression assays.
Camilla Albertina Dantas de Lima1,2, Suelen Cristina de Lima2, Alexandre Domingues Barbosa2,3
1Department of Genetics - Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, 50740-580, Recife, PE, Brazil.
Scientific Reports
|November 13, 2019
Summary
This study identifies the most stable reference genes for osteoporosis research using quantitative real-time PCR. RPLP0 and B2M are recommended for accurate gene expression analysis in osteoporosis studies.
Area of Science:
- Genetics and Molecular Biology
- Biochemistry
- Medical Science
Background:
- Osteoporosis (OP) is a complex disease with over 50% genetic influence.
- Accurate gene expression analysis is crucial for understanding OP's genetic basis.
- Validated reference genes are essential for reproducible gene expression studies in OP.
Purpose of the Study:
- To evaluate the suitability of 10 commonly used reference genes for normalization in osteoporosis gene expression studies.
- To identify the most stable reference genes for accurate quantification in OP research.
- To highlight the impact of reference gene selection on experimental outcomes.
Main Methods:
- Quantitative real-time PCR (qPCR) was used to measure the expression levels of 10 reference genes.
- Four statistical programs (GeNorm, Normfinder, BestKeeper, RefFinder) were employed for stability analysis.
- The suitability of reference genes was assessed in peripheral blood mononuclear cells (PBMCs) from OP patients.
Main Results:
- GeNorm recommended a minimum of two reference genes for reliable normalization.
- RPLP0 and B2M were identified as the most stable reference genes for OP studies.
- ACTB, 18S, and HPRT1 were found to be unstable and unsuitable for normalization in this dataset.
- Suboptimal reference gene choice significantly impacted target gene quantification.
Conclusions:
- RPLP0 and B2M are recommended as the most stable reference genes for gene expression assays in osteoporosis using PBMCs.
- HPRT1, 18S, and ACTB are not recommended for normalization in OP expression studies.
- Careful, individualized selection of reference genes and analysis software is critical for reliable osteoporosis research.
