Characterization of the long noncoding RNA transcriptome in human preimplantation embryo development

Area of Science:

• Reproductive biology and developmental science.
• Genomics and transcriptomics.
• Assisted reproductive technologies (ARTs).

Background:

• Infertility affects global health, with limited success in achieving blastocyst development in vitro.
• Long non-coding RNAs (lncRNAs) play crucial regulatory roles during human early embryonic development.
• Understanding lncRNA dynamics is essential for elucidating developmental processes.

Purpose of the Study:

• To investigate lncRNA profiles during human preimplantation development.
• To identify stage-specific and shared lncRNAs.
• To gain insights into the transcriptional regulation of embryonic development.

Main Methods:

• Analysis of single-cell RNA sequencing (scRNA-seq) and SUPeR-seq data from human preimplantation embryos.
• Identification and comparative analysis of top expressed lncRNAs across developmental stages.
• Functional enrichment analysis of differentially expressed lncRNAs and associated regulatory elements.

Main Results:

• Consistent lncRNA profiles were observed across different datasets.
• Distinct sets of unique and shared lncRNAs were identified at each developmental stage.
• Differentially expressed lncRNAs, super enhancers, and RNA binding proteins (RBPs) are implicated in regulating embryonic development and may serve as cell markers.

Conclusions:

• This research provides a foundation for understanding lncRNA-mediated regulation in early human development.
• The findings may contribute to improving reproductive outcomes through assisted reproductive technologies.