Comprehensive analysis of mRNA-microRNA-lncRNA expression profiles in post-traumatic elbow heterotopic ossification...

Area of Science:

• Molecular Biology
• Genomics
• Biochemistry

Background:

• Post-traumatic elbow heterotopic ossification (HO) is a debilitating condition.
• Understanding the molecular mechanisms underlying elbow HO is crucial for developing effective treatments.

Purpose of the Study:

• To profile the molecular signatures of post-traumatic elbow HO.
• To identify key regulatory molecules and potential therapeutic targets for elbow HO.

Main Methods:

• High-throughput RNA sequencing of HO tissues and normal bone.
• Bioinformatics analyses including pathway enrichment and network construction.
• Validation of gene expression using qRT-PCR.

Main Results:

• Identification of 2,138 differentially expressed mRNAs (DEGs), 40 microRNAs (DEMs), and 905 lncRNAs (DELs).
• DEGs enriched in bone mineralization and key signaling pathways (PI3K-Akt, NF-κB, JAK-STAT, TNF).
• Key regulators identified: hub genes (MMP9, IL6, MMP3, CTSK, BGLAP), TF JUN, and microRNAs (hsa-miR-124-3p, hsa-miR-548c-3p, hsa-miR-135b).

Conclusions:

• First comprehensive molecular profiling of post-traumatic elbow HO.
• Identified potential therapeutic targets for preventing and treating elbow HO.
• Findings offer insights into the molecular pathogenesis of post-traumatic elbow HO.