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Spontaneous lymphatic vessel formation and regression in the murine cornea.


ABSTRACT:

Purpose

Lymphatic dysfunctions are associated with many diseases, ranging from cancer metastasis to transplant rejection, for which there is little effective treatment. To date, there is no natural model with which to study lymphatic regression. This study was conducted to investigate whether murine cornea, an extensively exploited tissue for vascular studies, derives its lymphatic-free status from a natural regression mechanism. The differential behaviors between the lymphatic and blood vessels under normal development and inflammation conditions are also compared.

Methods

Normal mouse eyeballs or whole-mount corneas encompassing the entire course of corneal development and maturation and adult inflamed corneas were used for immunofluorescent microscopic studies.

Results

The data demonstrated, for the first time, that mouse cornea was endowed with a significant number of lymphatic vessels that underwent spontaneous formation and regression during a critical period after birth, which was not observed for blood vessels. Because lymphatic growth can be reactivated in the adult cornea after inflammatory stimulation, the cornea thereby becomes the first tissue ever identified to have a full range of lymphatic plasticity.

Conclusions

These novel findings not only provide a new concept in defining the cornea and its related diseases, they also reveal a completely natural model with which to study both lymphatic regression and formation. It is hoped that further studies will divulge novel and potent pro- or anti-lymphatic factors to treat lymphatic disorders inside and outside the eye.

SUBMITTER: Zhang H 

PROVIDER: S-EPMC3053282 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Publications

Spontaneous lymphatic vessel formation and regression in the murine cornea.

Zhang Hui H   Hu Xuemei X   Tse Julie J   Tilahun Firehiwott F   Qiu Mengsheng M   Chen Lu L  

Investigative ophthalmology & visual science 20110121 1


<h4>Purpose</h4>Lymphatic dysfunctions are associated with many diseases, ranging from cancer metastasis to transplant rejection, for which there is little effective treatment. To date, there is no natural model with which to study lymphatic regression. This study was conducted to investigate whether murine cornea, an extensively exploited tissue for vascular studies, derives its lymphatic-free status from a natural regression mechanism. The differential behaviors between the lymphatic and blood  ...[more]

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