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Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
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Elevated expression of ABCB5 in ocular surface squamous neoplasia
Passara Jongkhajornpong1,2, Takahiro Nakamura3, Chie Sotozono1
1Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Scientific Reports
|February 5, 2016
Summary
ATP-binding cassette subfamily B member 5 (ABCB5) is upregulated in ocular surface squamous neoplasm (OSSN). This finding suggests ABCB5 may play a role in OSSN development, offering potential new insights into corneal stem cell research.
Area of Science:
- Ophthalmology
- Cancer Biology
- Stem Cell Research
Background:
- ATP-binding cassette subfamily B member 5 (ABCB5) is a marker for limbal stem cells (LSCs) crucial for corneal health.
- ABCB5 is also found in cancer stem cells (CSCs) in various cancers.
- The role of ABCB5 in ocular surface squamous neoplasm (OSSN) pathogenesis remains unclear.
Purpose of the Study:
- To investigate the expression and role of ABCB5 in OSSN.
- To understand the relationship between LSC, CSC, and ABCB5 in OSSN.
Main Methods:
- Immunohistochemistry was performed on nine OSSN tissue samples.
- ABCB5 expression patterns were analyzed and categorized.
Main Results:
- ABCB5 expression, normally confined to the basal layer of the limbus, was elevated in all OSSN cases.
- Three distinct patterns of elevated ABCB5 expression were observed: perivascular, marginal, and diffuse.
- The intensity of ABCB5 expression varied across the OSSN samples.
Conclusions:
- ABCB5 is upregulated in OSSN.
- Elevated ABCB5 expression is implicated in the pathogenesis of OSSN.
- This study provides novel insights into the role of ABCB5 in ocular surface neoplasia.
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