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Related Experiment Video

Updated: Jun 26, 2026

Isolation and Identification of Limbal Niche Cells
10:11

Isolation and Identification of Limbal Niche Cells

Published on: October 27, 2023

Infant limbus: an immunohistological study.

A M Yeung, N L Tint, B B Kulkarni

    Experimental Eye Research
    |January 30, 2009
    PubMed
    Summary

    Infant ocular surface stem cells reside throughout the limbus, not in defined Limbal Epithelial Crypts (LECs). The infant limbus exhibits more stem-like characteristics, suggesting LECs develop later for stem cell protection.

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    Area of Science:

    • Ophthalmology
    • Developmental Biology
    • Stem Cell Research

    Background:

    • The human corneo-scleral limbus is recognized as the ocular surface stem cell niche.
    • Limbal Epithelial Crypts (LECs) were recently identified as a potential stem cell niche structure.
    • This study investigates the presence and characteristics of LECs in infant limbus tissue.

    Discussion:

    • Defined LECs were not observed in the infant limbus (4-month-old donor).
    • The entire infant limbus displayed characteristics similar to adult LECs.
    • Immunohistological markers (p63, integrin beta1, ABCG2, connexin 43) suggest a more 'stem-like' nature in the infant limbus, particularly its distal region.

    Key Insights:

    • Infant limbus tissue lacks distinct LEC structures but exhibits widespread stem-cell-like properties.

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    Last Updated: Jun 26, 2026

    Isolation and Identification of Limbal Niche Cells
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    Published on: October 27, 2023

    Corneal and Limbal Alkali Injury Induction Using a Punch-Trephine Technique in a Mouse Model
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  • p63 and integrin beta1 expression is localized to the distal infant limbus and basal LEC regions.
  • ABCG2 and connexin 43 show broad expression in the infant limbus.

    • Outlook:

    • LECs may represent a developmental adaptation for protecting ocular surface stem cells.
    • Further research can elucidate the precise role of LECs in ocular surface homeostasis and development.
    • Understanding early limbal stem cell behavior can inform future regenerative medicine strategies.