[An experimental study on the susceptibility of human corneal cells to infection by herpes simplex virus type 1]

Area of Science:

• Ophthalmology
• Virology
• Cell Biology

Context:

• Herpes simplex keratitis (HSK) is a significant cause of corneal blindness worldwide.
• Understanding the differential susceptibility of corneal cell types to HSV-1 is crucial for HSK pathogenesis.
• The Mckrae strain of HSV-1 is a common cause of ocular infections.

Purpose:

• To investigate the in vitro susceptibility of human corneal epithelial cells, endothelial cells, and keratocytes to HSV-1 infection.
• To determine the time-dependent infection kinetics of HSV-1 in different corneal cell types.
• To correlate in vitro findings with the in vivo mechanisms of HSK.

Summary:

• Human corneal epithelial cells, endothelial cells, and keratocytes exhibit increasing resistance to HSV-1 infection by the Mckrae strain in vitro.
• Epithelial cells demonstrated the highest susceptibility, while keratocytes showed the greatest resistance.
• This differential susceptibility aligns with the known natural resistance of these cell types and clarifies HSK mechanisms.

Impact:

• Provides a cellular basis for the clinical presentation of herpes simplex keratitis.
• Informs potential therapeutic strategies targeting specific corneal cell vulnerabilities.
• Contributes to a deeper understanding of host-pathogen interactions in ocular viral infections.