Reference genes for the developing mouse lung under consideration of biological, technical and experimental...

Area of Science:

• Developmental biology
• Molecular biology
• Genomics

Background:

• Quantitative real-time PCR (RT-qPCR) requires normalization to stable reference genes for accurate gene expression analysis.
• Identifying reliable reference genes is challenging in the developing lung due to complex gene regulation during maturation and repair.
• Limited data exists on suitable reference genes for neonatal mouse lung studies.

Purpose of the Study:

• To evaluate and identify reliable reference genes for gene expression studies in the neonatal mouse lung.
• To assess reference gene stability under diverse biological, technical, and experimental conditions.
• To provide guidance for selecting appropriate reference genes in neonatal lung research.

Main Methods:

• Analysis of publicly available microarray datasets to select candidate reference genes.
• Performing RT-qPCR on selected candidate genes in neonatal C57BL/6 mouse lungs.
• Utilizing GeNorm and Normfinder algorithms to analyze gene expression variability.
• Examining cell-specific expression using single-cell RNA-sequencing data.

Main Results:

• Distinct candidate reference genes showed stable expression across different developmental stages, sexes, RNA qualities, and experimental conditions (including hyperoxia).
• Gene expression stability varied depending on cell type, highlighting the need for context-specific reference gene selection.
• Identification of several reliable reference genes suitable for neonatal mouse lung research.

Conclusions:

• The study provides a comprehensive evaluation of reference gene stability in the neonatal mouse lung.
• Results offer crucial insights for selecting appropriate reference genes, improving the accuracy of RT-qPCR studies in this model.
• Validated reference genes will enhance the reliability of gene expression data in neonatal lung development and disease research.