Transgenic dry eye mouse models: powerful tools to study dry eye disease.

Area of Science:

• Ophthalmology
• Immunology
• Genetics

Background:

• Dry eye disease (DED) is a prevalent, multifactorial ocular surface condition causing discomfort and potential vision impairment.
• Its pathogenesis involves tear film hyperosmolarity and ocular surface immune responses.
• Mouse models are crucial for studying DED and testing therapies.

Purpose of the Study:

• To compare major transgenic mouse models of dry eye disease.
• To discuss the applications of these models in DED research.
• To provide insights into DED pathogenesis and treatment evaluation.

Main Methods:

• Review and comparison of existing transgenic mouse models for DED.
• Classification of models based on DED subtypes: aqueous-deficiency dry eye (ADDE) and evaporative dry eye (EDE).
• Highlighting specific models for Sjögren syndrome dry eye (SSDE) and meibomian gland dysfunction (MGD).

Main Results:

• Identification of key natural and genetically engineered SSDE mouse models (e.g., NOD, Aire-/-, Id3 knockout).
• Identification of common transgenic MGD mouse models for EDE (e.g., Eda-/- Tabby, Sod1-/-, Elovl1-/-).
• Demonstration of the utility of transgenic models in DED research.

Conclusions:

• Transgenic mouse models are valuable tools for investigating DED.
• These models facilitate the study of DED pathogenesis and the evaluation of novel therapeutic strategies.
• Comparative analysis aids researchers in selecting appropriate models for specific DED research questions.