Defining cell surface and glycosylated RNAs.

GlycoRNAs, a new class of N-glycan-modified small noncoding RNAs, are identified on the cell surface, challenging traditional views of cell surface biomolecules.

• Why it matters: Understanding the composition and functions of cell surface molecules is crucial for insights into cellular communication and regulation, yet RNA's role at this interface has been underexplored.
• What they did: The authors review advanced chemical biology and RNA detection techniques that identified glycoRNAs and explore mechanisms of RNA trafficking and anchoring to the cell surface, emphasizing emerging evidence.
• The result: These findings expand the understanding of RNA regulatory functions at the cell surface, opening new avenues for research into RNA-mediated cell signaling and interactions.