Expression Patterns and Potential Biological Roles of Dip2a

Area of Science:

• Genetics
• Developmental Biology
• Molecular Biology

Background:

• The expression pattern and functions of Disconnected (disco)-interacting protein 2 homolog A (DIP2A), a member of the DIP2 protein family, remain largely uncharacterized.
• Understanding DIP2A's role is crucial for elucidating its involvement in embryonic development and adult physiology.

Purpose of the Study:

• To systematically investigate the gene expression pattern of Dip2a in both embryonic and adult mouse tissues.
• To explore the potential functions and structural roles associated with DIP2A.

Main Methods:

• Generation of a Dip2a-LacZ reporter mouse model using CRISPR/Cas9 technology.
• Utilizing heterozygous mice for endogenous Dip2a expression analysis via LacZ staining.
• Employing homozygous mice to study DIP2A-associated structures and functions.

Main Results:

• Dip2a exhibits broad expression in neuronal, reproductive, and vascular tissues, including the heart, kidney, liver, and lung.
• Embryonic expression is predominantly observed in ectoderm-derived tissues.
• Adult tissues show rich DIP2A expression in neurons, mesenchymal cells, endothelial cells, smooth muscle cells, and cardiomyocytes.
• Expression patterns significantly overlap with Follistatin-like 1 (FSTL1), supporting DIP2A's role as a potential FSTL1 receptor.

Conclusions:

• Dip2a demonstrates widespread expression across diverse tissues during both embryonic and adult stages.
• The broad expression profile suggests multiple structural and physiological roles for DIP2A.
• Findings support DIP2A's involvement in cardiovascular health, potentially through interaction with FSTL1.