An ex vivo cornea infection model

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Microbiology

Background:

• In vitro models often fail to accurately predict in vivo drug efficacy and tissue compatibility.
• Ex vivo tissue models offer a more relevant biological matrix for preclinical testing.
• Existing models may not fully capture the complex biochemical and biophysical environment of the eye.

Purpose of the Study:

• To develop and validate an ex vivo corneal model for drug delivery and infection studies.
• To provide a cost- and time-efficient platform for evaluating ocular treatments and pathogens.
• To enable research into bacterial physiology and corneal integrity under infection conditions.

Main Methods:

• Protocol development for ex vivo corneal tissue harvesting and sterilization.
• Standardized inoculation procedures for bacterial infection modeling.
• Quantification of bacterial load to assess infection progression.

Main Results:

• The developed ex vivo corneal model successfully supports bacterial colonization and growth.
• The model allows for the assessment of drug delivery and efficacy under near-physiological conditions.
• Devitalized, non-submersed, and contact lens-compatible conditions were established.

Conclusions:

• The ex vivo corneal model serves as a valuable bridge between in vitro and in vivo testing.
• This model can enhance the reliability of preclinical drug screening and infection research.
• The model facilitates the study of microbial interactions with corneal tissue, aiding in understanding disease pathogenesis.