EDIL3

Overview
EDIL3 (EGF‑like repeats and discoidin I‑like domains 3) is a protein‑coding gene in the human genome. The gene encodes a secreted extracellular matrix protein commonly referred to as developmental endothelial locus‑1 (Del‑1). EDIL3 is expressed primarily in endothelial cells, where it participates in processes related to vascular development and inflammation.

Genomic Location

• Chromosomal position: 5q31.1 (human genome assembly GRCh38).
• The gene spans several kilobases and comprises multiple exons that encode the mature protein.

Protein Structure

• The EDIL3 protein contains multiple EGF‑like repeats and two discoidin I‑like domains.
• These domains facilitate binding to integrins (notably α_vβ_3 and α_vβ_5) and phospholipids, suggesting a role in cell adhesion and signaling.

Biological Functions

• Angiogenesis: EDIL3 promotes endothelial cell proliferation, migration, and tube formation, contributing to the formation of new blood vessels.
• Anti‑inflammatory activity: The protein can inhibit leukocyte adhesion to the endothelium, thereby modulating inflammatory responses.
• Tissue remodeling: By interacting with extracellular matrix components, EDIL3 influences tissue repair and remodeling processes.

Clinical and Research Relevance

• Cancer: Elevated expression of EDIL3 has been reported in several tumor types, where it may support tumor angiogenesis and progression.
• Cardiovascular disease: Experimental studies suggest a protective role in atherosclerosis models through its anti‑inflammatory properties.
• Genetic studies: Variants in the EDIL3 locus have been investigated for associations with vascular and metabolic phenotypes, though definitive causal links remain under investigation.

Database References

• NCBI Gene: Gene ID 55868 (human EDIL3).
• UniProt: Entry Q9Y2J5 (EDIL3 protein).
• HGNC: Official symbol EDIL3; HGNC ID 24423.

Research Tools

• Antibodies targeting EDIL3 are available for Western blotting, immunohistochemistry, and flow cytometry.
• Recombinant EDIL3 protein is used in functional assays to assess endothelial cell behavior.

Summary
EDIL3 encodes a secreted extracellular protein involved in angiogenic signaling and modulation of inflammation. Its expression pattern and functional attributes make it a subject of interest in vascular biology, oncology, and cardiovascular research. Ongoing studies continue to clarify its mechanistic roles and potential as a therapeutic target.