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The Establishment and Optimization of a Chicken Primordial Germ Cell Induction Model Using Small-Molecule Compounds
Wei Gong1,2, Juanjuan Zhao1,2, Zeling Yao1,2
1Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China.
Animals : an Open Access Journal From MDPI
|January 23, 2024
Summary
Researchers developed a two-step method to efficiently generate chicken primordial germ cells (PGCs) in vitro. This breakthrough enhances PGC production for applications in conservation and genetic improvement.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Stem Cell Biology
Background:
- In vitro induction of pluripotent stem cells into primordial germ cells (PGCs) is crucial for large-scale PGC acquisition.
- Current methods suffer from instability and low efficiency, limiting applications in transgenic animal production and germplasm conservation.
Purpose of the Study:
- To establish an efficient two-step in vitro induction model for chicken PGCs.
- To identify key signaling pathways and genes regulating PGC formation in vitro.
Main Methods:
- Developed a two-step induction model for chicken PGCs.
- Utilized RNA sequencing (RNA-seq) to identify differentially expressed genes (DEGs) between embryonic stem cells (ESCs) and PGCs.
- Performed Gene Ontology (GO) and KEGG pathway enrichment analysis.
Main Results:
- Significantly improved the formation efficiency of PGC-like cells (PGCLCs) using the two-step model.
- Identified 5025 DEGs between ESCs and PGCs.
- Confirmed activation of BMP4, Wnt, and Notch pathways, and activation of cAMP and suppression of MAPK during PGC formation.
- Demonstrated enhanced PGC formation efficiency by activating Wnt and inhibiting MAPK signaling.
Conclusions:
- Successfully established a highly efficient two-step in vitro chicken PGC induction model.
- Provides a theoretical foundation for understanding PGC regulatory mechanisms.
- Facilitates future applications of PGCs in biotechnology and conservation efforts.
