Latest

The mRNA vaccines deployed in 2020 weren't invented in 2020. They were built on Katalin Karikó's decade of unfunded, career-threatening research into modified nucleosides. COVID was the proof-of-concept — but the technology now points at cancer vaccines, HIV, and rare genetic diseases.

The Central Dogma cast RNA as a middleman: DNA sends a message, RNA carries it, proteins do the work. That picture is incomplete. Most of the genome transcribes RNA that never becomes protein — and those non-coding RNAs turn genes on and off and run regulatory networks of startling complexity.

The central dogma reduced RNA to a photocopy of DNA on its way to becoming protein. That picture is now obsolete. Non-coding RNAs regulate gene expression, splice transcripts, silence transposons, and sense cellular conditions — RNA is closer to an operating system than a courier.

lncRNAs were once dismissed as transcriptional noise. We now know they scaffold chromatin architecture, silence whole chromosomes (X-inactivation runs on one), and regulate development. The dark matter of the genome is turning on lights.

Every cell has a built-in mechanism for destroying specific RNA sequences — and Andrew Fire and Craig Mello figured out how to hijack it. RNA interference lets researchers silence virtually any gene on demand, a capability that's now moving from the lab into approved drugs.

Epigenetics gets the attention, but epitranscriptomics may be equally important. RNA modifications add a dynamic, reversible layer of regulation between gene expression and protein output — one that responds to stress, development, and disease.