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Updated: Aug 30, 2025
High Efficiency Differentiation of Human Pluripotent Stem Cells to Cardiomyocytes and Characterization by Flow Cytometry
Published on: September 23, 2014
Time-regulated transcripts with the potential to modulate human pluripotent stem cell-derived cardiomyocyte
Juan J A M Muñoz1,2, Rafael Dariolli1,3, Caio Mateus da Silva1
1Laboratory of Genetics and Molecular Cardiology/LIM 13, Heart Institute (InCor), University of São Paulo Medical School, Avenida Dr. Eneas C. Aguiar 44, São Paulo, SP, 05403-000, Brazil.
Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) show immature gene expression. This study identifies key miRNA-target gene interactions that regulate hiPSC-CM maturation, revealing pathways for improved cardiac cell development.
Area of Science:
- Cardiovascular Biology
- Stem Cell Biology
- Molecular Biology
Background:
- Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) are valuable disease models but exhibit immature transcriptional profiles.
- MicroRNA (miRNA)-target gene interactions are crucial for regulating cardiac maturation and identifying therapeutic targets.
Purpose of the Study:
- To identify time-regulated miRNA-target gene interactions during hiPSC-CM differentiation.
- To investigate the role of these interactions in cardiac maturation and functional development.
Main Methods:
- Analysis of public hiPSC-CM datasets to identify miRNA-target gene interactions.
- In silico validation using multiple human and mouse datasets.
- Experimental validation using miRNA mimics in hiPSC-CMs to assess effects on proliferation, structure, and function.
Main Results:
- Identification of 324 miRNA-target gene interactions, with 16 validated inverse interactions among eight genes and 12 miRNAs.
- Demonstration that specific miRNAs, like miR-124, impact calcium handling and structural maturation.
- Confirmation that top-scoring miRNAs primarily influence structural features of hiPSC-CMs.
Conclusions:
- Time-regulated transcripts and miRNA-target interactions significantly influence cardiac differentiation and maturation.
- Key miRNAs play a critical role in driving structural maturation of hiPSC-CMs.
- This research highlights pathways for enhancing hiPSC-CM maturation for disease modeling and therapeutic applications.
