Identification of Key lncRNAs in Gout Under Copper Death and Iron Death Mechanisms: A Study Based on ceRNA Network...

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• Gout pathogenesis involves complex molecular mechanisms, including cell death pathways.
• Long non-coding RNAs (lncRNAs) play crucial roles in disease regulation.
• Understanding novel molecular targets is essential for effective gout therapeutics.

Purpose of the Study:

• To identify key lncRNAs associated with gout through copper and iron death mechanisms.
• To elucidate potential molecular targets for future gout therapeutic strategies.
• To investigate the regulatory axis of lncRNA ZNF883 in gout.

Main Methods:

• Bioinformatics analysis of gout microarray data to screen key cuproptosis-related genes (CRGs) and ferroptosis-related genes (FRGs).
• Construction of a competing endogenous RNA (ceRNA) network for gout.
• Application of the Random Forest (RF) algorithm and ROC curves to identify key lncRNAs, validated using the Comparative Toxicogenomics Database (CTD).

Main Results:

• Identified key CRGs (NLRP3, LIPT1, DBT) and FRGs (G6PD, PRKAA1, LIG3, PHF21A, KLF2, PGRMC1, JUN, PANX2, AR) in gout.
• Constructed a ceRNA network revealing four downregulated lncRNAs (SEPSECS-AS1, LINC01054, REV3L-IT1, ZNF883) and three downregulated mRNAs (DBT, AR, PRKAA1).
• Identified a potential gout-associated regulatory axis: lncRNA ZNF883/hsa-miR-539-5p/PRKAA1, potentially influencing uric acid reabsorption and inflammation.

Conclusions:

• lncRNA ZNF883 is identified as a key player in gout pathogenesis, linked to copper and iron death.
• The ZNF883/hsa-miR-539-5p/PRKAA1 axis offers a novel RNA regulatory pathway for gout progression.
• ZNF883 presents a promising molecular target for developing new therapeutic strategies for gout.