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Related Experiment Video

Updated: May 30, 2026

Investigating Scarless Tissue Regeneration in Embryonic Wounded Chick Corneas

Investigating Scarless Tissue Regeneration in Embryonic Wounded Chick Corneas

Published on: May 2, 2022

Regressed lymphatic vessels develop during corneal repair.

Philip M Kelley¹, Maria M Steele, Richard M Tempero

¹Departments of Genetics and Otolaryngology, Boys Town National Research Hospital, Omaha, NE, USA.

Laboratory Investigation; a Journal of Technical Methods and Pathology

|August 25, 2011

Summary

This summary is machine-generated.

Newly formed lymphatic vessels in the cornea regress after inflammation resolves, showing distinct changes in structure and immune cell interaction during corneal healing. This regression is crucial for managing inflammatory eye diseases.

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Area of Science:

Ophthalmology
Immunology
Vascular Biology

Background:

The behavior of new lymphatic vessels after inflammation subsides is not well understood.
Inflammation in the cornea can lead to the formation of new lymphatic vessels.

Purpose of the Study:

To investigate the changes in newly formed lymphatic vessels during corneal recovery after inflammation.
To understand the morphological, phenotypic, and functional characteristics of regressing lymphatic vessels.

Main Methods:

Corneal inflammation was induced and resolved using a suture removal model.
Changes in corneal inflammation markers were monitored over 14 days.
Lymphatic vessel morphology, immune cell trafficking (MHC-II-positive leukocytes), and gene expression (VEGF-A, VEGF-C, TGF-β) were analyzed.

Main Results:

Inflammation markers resolved within 14 days after suture removal.
Newly synthesized lymphatic vessels were observed in inflamed corneas, trafficking leukocytes.
During recovery, these vessels became thin, fragmented, and excluded leukocytes, with altered CD31 and VE-cadherin expression.
VEGF-A, VEGF-C, and TGF-β mRNA levels increased during corneal recovery.

Conclusions:

Regressing lymphatic vessels in the cornea exhibit specific structural and cellular changes.
The dynamic balance between lymphatic vessel growth and regression plays a key role in corneal inflammatory diseases.
Lymphangiogenic factors are involved in corneal recovery and lymphatic vessel remodeling.