Long noncoding RNAs show differential expression profiles and display ceRNA potential in cholesteatoma pathogenesis

Area of Science:

• Otolaryngology
• Molecular Biology
• Genomics

Background:

• Cholesteatoma is a destructive middle ear disease with poorly understood pathogenesis.
• It results from epidermal migration and keratinocyte hyperproliferation, causing complications like hearing loss and facial paralysis.

Purpose of the Study:

• To identify differentially expressed long non-coding RNAs (lncRNAs) in cholesteatoma using microarray analysis.
• To explore the role of lncRNAs in cholesteatoma pathogenesis and their potential as therapeutic targets.

Main Methods:

• Microarray analysis was performed to compare lncRNA expression profiles in cholesteatoma tissues and matched normal skin tissues.
• A competing endogenous RNA (ceRNA) network was constructed to analyze lncRNA/miRNA/mRNA interactions.

Main Results:

• Significant alterations in lncRNA expression profiles were observed in cholesteatoma compared to normal skin.
• A total of 787 differentially expressed lncRNAs were identified: 181 upregulated and 606 downregulated.
• lncRNAs, including lncRNA-uc001kfc.1, demonstrated ceRNA potential in cholesteatoma formation.

Conclusions:

• lncRNAs are aberrantly expressed in cholesteatoma and are implicated in its pathogenesis.
• These findings offer new insights into the molecular mechanisms of cholesteatoma.
• lncRNAs represent potential therapeutic targets for cholesteatoma.