Genome-wide profiling of long noncoding ribonucleic acid expression patterns in ovarian endometriosis by microarray

Area of Science:

• Reproductive biology
• Genomics
• Molecular biology

Background:

• Endometriosis is a condition where endometrial-like tissue grows outside the uterus.
• Long noncoding RNAs (lncRNAs) are increasingly recognized for their roles in various biological processes and diseases.

Purpose of the Study:

• To investigate and profile the expression patterns of long noncoding RNAs (lncRNAs) in ovarian ectopic endometrial tissue.
• To compare these lncRNA expression patterns with those found in paired eutopic endometrial tissue.

Main Methods:

• Genome-wide expression analysis using microarray technology on human endometrial tissues.
• Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) for validation of differentially expressed lncRNAs.
• Functional prediction of lncRNAs based on coexpressed messenger RNA (mRNA) annotations.

Main Results:

• A significant number of lncRNA transcripts (948) and mRNA transcripts (4,088) were found to be dysregulated in ectopic endometrial tissue compared to eutopic tissue.
• The differential expression of 10 selected lncRNAs was successfully validated using qRT-PCR.
• Functional analysis indicated that certain lncRNAs may influence endometriosis-related pathways through regulation of protein-coding genes.

Conclusions:

• This research presents the first comprehensive report on lncRNA expression profiles in human ectopic and eutopic endometrial tissues.
• The findings reveal substantial dysregulation of lncRNAs in endometriosis, with nearly 1,000 transcripts identified as altered via microarray analysis.
• These dysregulated lncRNAs are potential contributors to the pathogenesis of endometriosis.