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Updated: May 15, 2026

Isolation of Intact Eyeball to Obtain Integral Ocular Surface Tissue for Histological Examination and Immunohistochemistry
Published on: October 20, 2019
Wakayama symposium: challenges of future research in ocular surface cell biology
Winston W-Y Kao1, Hongshan Liu, Jianhua Zhang
1Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, Ohio 45267-0838, USA. Winston.Kao@UC.Edu
Abstract:
During embryonic development, surface ectoderm differentiates to form corneal, conjunctival, and eyelid epidermal epithelia, and glandular epithelium (lacrimal and meibomian glands). Periocular mesenchymal cells of neural crest origin migrate and differentiate, leading to the formation of corneal endothelium and the stromas of the cornea, conjunctiva, eyelids, and trabecular meshwork. The formation of functional ocular surface tissues requires coordinated spatial and temporal expression of transcription factors and signaling molecules of various cytokines and signaling pathways, and the synthesis and remodeling of unique extracellular matrix. Although bidirectional interactions and signaling between mesenchyme and epithelium are considered necessary for embryonic formation of ocular surface tissues and homeostasis in adults, the molecular and cellular mechanisms that regulate such processes remain largely unknown. To investigate possible mechanisms, we have developed mouse models in which the gene functions of ocular surface epithelia and stromas can be altered by Doxycycline induction in spatial and temporal specific manners.
Insights
Investigating ocular surface development, this study explores the molecular mechanisms of tissue formation. New mouse models allow targeted gene manipulation to understand epithelial and stromal cell interactions.
Area of Science:
- Developmental biology
- Ocular surface science
- Epithelial biology
Background:
- Embryonic development involves differentiation of surface ectoderm and neural crest cells to form ocular tissues.
- Ocular surface tissue formation requires precise gene expression, signaling pathways, and extracellular matrix remodeling.
- Bidirectional mesenchyme-epithelium interactions are crucial for ocular development and adult homeostasis, but underlying mechanisms are unclear.
Purpose of the Study:
- To investigate the molecular and cellular mechanisms regulating ocular surface tissue development.
- To elucidate the roles of epithelial and stromal components in ocular surface formation.
- To develop novel research tools for studying ocular surface development.
Main Methods:
- Development of Doxycycline-inducible mouse models.
- Spatial and temporal control of gene function alteration in ocular surface epithelia and stromas.
- Analysis of gene function in embryonic ocular development.
Main Results:
- Successfully created mouse models for inducible gene manipulation in ocular surface tissues.
- Established a platform for dissecting gene function in epithelial and stromal compartments.
- Provided a foundation for future studies on ocular surface development.
Conclusions:
- The developed mouse models offer a powerful tool for studying ocular surface development.
- Further research using these models will uncover critical mechanisms of tissue formation and homeostasis.
- Understanding these processes is key to addressing congenital ocular surface disorders.
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