Genes essential for embryonic stem cells are associated with neurodevelopmental disorders

Area of Science:

• Stem cell biology
• Genetics
• Developmental biology

Background:

• Mouse embryonic stem cells (mESCs) are vital for disease modeling and pluripotency research.
• The complete set of essential genes in mESCs remains largely unknown.
• Understanding essential genes is critical for advancing stem cell applications.

Purpose of the Study:

• To perform a genome-wide screen to identify essential genes in mESCs.
• To compare essential gene sets between mouse and human cells.
• To investigate the functions and characteristics of essential genes in mESCs.

Main Methods:

• Genome-wide screening in mESCs.
• Comparative analysis with human cell screens.
• Functional enrichment analysis of essential genes.

Main Results:

• Essential genes are enriched in basic cellular functions and highly expressed in mESCs.
• Genes essential specifically in mESCs are involved in pluripotency-associated pathways.
• 29.5% of human loss-of-function intolerant genes are essential in mouse or human ESCs.
• Neurodevelopmental phenotypes are significantly associated with genes essential for ESCs.

Conclusions:

• This study identifies key essential genes in mESCs, providing insights into pluripotency regulation.
• Essential genes in ESCs are often involved in fundamental cellular processes and lack paralogs.
• The overlap between ESC essential genes and genes linked to neurodevelopmental disorders suggests early embryonic roles for these genes.