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Updated: Oct 2, 2025

Author Spotlight: Cardiac Cell Transgenesis for Rapid Gene Screening
Published on: May 24, 2024
Proteogenomics Integrating Reveal a Complex Network, Alternative Splicing, Hub Genes Regulating Heart Maturation
Huijun Yang1, Weijing Liu2, Shen Song2
1Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.
Understanding mouse heart maturation reveals key regulators of cardiac development and disease. This study identified critical genes and pathways involved in neonatal to adult heart transition, offering insights into cardiac cardiomyopathy.
Area of Science:
- Cardiovascular Biology
- Developmental Biology
- Proteomics and Genomics
Background:
- Heart maturation is a critical biological process transforming the neonatal heart into an adult structure.
- Understanding this transition is vital for addressing postnatal heart development and cardiac diseases like cardiomyopathy.
Purpose of the Study:
- To elucidate the molecular mechanisms underlying heart maturation in mice.
- To identify key genes, proteins, and regulatory networks involved in this developmental process.
Main Methods:
- Proteomic analysis using isobaric tags for relative and absolute quantitation (iTRAQ).
- Transcriptome analysis via RNA sequencing.
- Proteogenomic integration, functional and pathway analysis, alternative splicing analysis, and RT-qPCR validation.
Main Results:
- Identified 254 commonly differentially expressed genes/proteins between neonatal and adult mouse hearts.
- Discovered that mRNA processing and energy metabolism are key pathways regulating heart maturation.
- Revealed differential alternative splicing events in sarcomere and energy-associated genes, identifying 23 hub genes, including Ogdhl, crucial for heart maturation.
Conclusions:
- Proteogenomic analysis provides a comprehensive view of heart maturation mechanisms.
- Ogdhl plays a significant role in heart maturation, impacting energy metabolism.
- The study identified a complex gene network and candidate hub genes for heart maturation and potential therapeutic targets.
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