Reference gene selection and validation for mRNA expression analysis by RT-qPCR in murine M1- and M2-polarized macrophage

被引:0
作者
Wen Ju
Tiantian Sun
Wenyi Lu
Alhaji Osman Smith
Yurong Bao
Seyram Yao Adzraku
Kunming Qi
Kailin Xu
Jianlin Qiao
Lingyu Zeng
机构
[1] Xuzhou Medical University,Blood Diseases Institute
[2] Key Laboratory of Bone Marrow Stem Cell,Department of Hematology
[3] The Affiliated Hospital of Xuzhou Medical University,undefined
来源
Molecular Biology Reports | 2020年 / 47卷
关键词
Reference gene; RT-qPCR; Macrophages; Polarization;
D O I
暂无
中图分类号
学科分类号
摘要
Murine bone marrow-derived macrophages (M0) and M1- and M2-polarized macrophages are being widely used as a laboratory model for polarized macrophages related molecular mechanism analysis. Gene expression analysis based on reference gene normalization using RT-qPCR was a powerful way to explore the molecular mechanism. But little is known about reference genes in these cell models. So, the goal of this study was to identify reference genes in these types of macrophages. Candidate reference genes in murine bone marrow-derived and polarized macrophages were selected from microarray data using Limma linear model method and evaluated by determining the stability value using five algorithms: BestKeeper, NormFinder, GeNorm, Delta CT method, and RefFinder. Finally, the selected stable reference genes were validated by testing three important immune and inflammatory genes (NLRP1, IL-1β, and TNF-α) in the cell lines. Our study has clearly shown that Ubc followed by Eef1a1 and B2m respectively were recognized as the three ideal reference genes for gene expression analysis in murine bone marrow-derived and polarized macrophages. When three reference genes with strong different stability were used for validation, a large variation of a gene expression level of IL-1β, TNF-α and NLRP1 were obtained which provides clear evidence of the need for careful selection of reference genes for RT-qPCR analysis. Normalization of mRNA expression level with Ubc rather than Actb or Gusb by qPCR in macrophages and polarized macrophages is required to ensure the accuracy of the qPCR analysis.
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页码:2735 / 2748
页数:13
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