Isolation and Characterization of a New Human Corneal Epithelial Cell Line: HCE-F

Area of Science:

• Ophthalmology
• Cell Biology
• Tissue Engineering

Background:

• The corneal epithelium is crucial for maintaining ocular surface integrity.
• Developing reliable in vitro models of corneal epithelial cells (EC) is essential for research.

Purpose of the Study:

• To establish and characterize a primary human corneal epithelial cell line (HCE-F).
• To validate HCE-F as a model for studying corneal epithelium responses to stress and therapeutic interventions.

Main Methods:

• Enzymatic digestion of donor cornea to isolate ECs for tissue culture.
• Characterization using microscopy, SDS-PAGE, Western immunoblotting, and transepithelial electrical resistance (TEER).
• Karyotype analysis and immunodetection of junction proteins.

Main Results:

• HCE-F cells exhibited stable, polygonal morphology across multiple passages.
• TEER measurements confirmed barrier function characteristic of corneal epithelium.
• Cytokeratin expression (CK3, CK5) matched corneal ECs, distinct from keratocytes.
• Karyotype analysis revealed trisomies for chromosomes 8 and 11 in male cells.

Conclusions:

• HCE-F is a stable, authentic primary human corneal EC line.
• This cell line serves as a valuable tool for investigating corneal epithelium biology.
• HCE-F provides a comparison for ECs from pathological corneas.