The potential role of long noncoding RNAs in primary open-angle glaucoma

Area of Science:

• Ophthalmology
• Genetics
• Molecular Biology

Background:

• Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
• The precise molecular mechanisms underlying POAG pathogenesis remain incompletely understood.
• Identifying specific genes involved in the trabecular meshwork (TM) is crucial for understanding POAG.

Purpose of the Study:

• To identify potential genes, specifically long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs), associated with the human trabecular meshwork (TM) in primary open-angle glaucoma (POAG).

Main Methods:

• Microarray analysis was used to profile lncRNA and mRNA expression in TM samples from POAG patients and controls.
• Real-time quantitative PCR (RT-qPCR) validated the expression of selected lncRNAs.
• Pathway analyses were conducted using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases.

Main Results:

• Significant differential expression of 2179 lncRNAs and 923 mRNAs (upregulated) and 3111 lncRNAs and 887 mRNAs (downregulated) was observed in POAG TM samples.
• Six specific lncRNAs (ENST00000552367, ENST00000582505, ENST00000609130, NR_029395, NR_038379, and ENST00000586949) showed significantly higher expression in POAG patients compared to normal controls.

Conclusions:

• The identified lncRNAs, including ENST00000552367, ENST00000582505, ENST00000609130, NR_029395, NR_038379, and ENST00000586949, are potentially critical in the development of primary open-angle glaucoma.
• These findings provide novel molecular targets for further investigation into POAG pathogenesis.