A Whole New Comprehension about ncRNA-Encoded Peptides/Proteins in Cancers

Area of Science:

• Molecular Biology
• Genomics
• Cancer Research

Background:

• Traditionally, non-coding RNAs (ncRNAs) were not believed to produce proteins.
• Recent discoveries reveal that long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) possess open reading frames (ORFs) capable of encoding peptides/proteins.
• The translation of circRNAs is initiated via internal ribosome entry sites (IRESs), m6A modification, or rolling circle amplification due to the absence of a 5' cap structure.

Purpose of the Study:

• To explore the emerging field of ncRNA-encoded peptides/proteins.
• To elucidate the diverse functions and mechanisms of these novel proteins in cancer.
• To review current detection technologies and discuss their potential for cancer therapy.

Main Methods:

• Literature review and synthesis of recent research findings.
• Analysis of studies investigating the functional roles of ncRNA-encoded peptides/proteins.
• Examination of existing technologies for detecting ncRNA-derived products.

Main Results:

• ncRNA-encoded peptides/proteins are implicated in regulating key cancer-related pathways, including Wnt/β-catenin, AKT, and MAPK signaling.
• These proteins also influence cellular metabolism, such as glucose and lipid metabolism.
• Functions extend to protein stability, transcriptional, and posttranscriptional regulation, impacting RNA stability, splicing, and translation initiation.

Conclusions:

• ncRNA-encoded peptides/proteins represent a significant and expanding area of cancer biology.
• Understanding their roles offers new insights into cancer mechanisms.
• Existing detection technologies and the therapeutic potential of targeting these ncRNA-derived proteins warrant further investigation for clinical applications in cancer treatment.