Emerging crosstalk between long non-coding RNAs and Nrf2 signaling

Area of Science:

• Molecular Biology
• Epigenetics
• Cancer Research

Background:

• The Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway controls cellular responses to oxidative stress.
• Nrf2 activity is primarily regulated by Keap1, but epigenetic mechanisms, including long non-coding RNAs (lncRNAs), also play a role.
• lncRNAs are increasingly recognized for their regulatory functions in gene expression and cellular processes.

Purpose of the Study:

• To review the emerging role of lncRNAs in the Nrf2 signaling pathway.
• To highlight lncRNAs as both downstream targets and upstream regulators of Nrf2.
• To explore the therapeutic potential of targeting lncRNAs in Nrf2-mediated diseases.

Main Methods:

• Literature review of studies investigating lncRNAs and Nrf2 signaling.
• Analysis of existing datasets (e.g., GENCODE) for Nrf2-regulated lncRNAs.
• Bioinformatic identification of potential Nrf2 binding sites in lncRNA promoter regions.

Main Results:

• Several lncRNAs (e.g., LUCAT1, ROR, HOTAIR, MALAT1) have been validated as Nrf2 targets or regulators.
• Bioinformatic analysis suggests thousands of lncRNAs may be regulated by Nrf2.
• The precise roles of many novel lncRNAs in Nrf2 signaling require further investigation.

Conclusions:

• lncRNAs represent a significant layer of regulation within the Nrf2 pathway.
• Targeting specific lncRNAs could offer refined therapeutic strategies for Nrf2-related conditions, including cancer.
• Further research is crucial to fully elucidate the functional significance of lncRNAs in Nrf2 signaling.