New RNA sequencing method reveals hidden layer of immune system control

Researchers at University Medical Center Utrecht have uncovered a previously underappreciated mechanism that helps immune cells to respond rapidly to infections. Using advanced long-read RNA sequencing, the team shows that alternative RNA splicing, which means how genes are edited into different messenger RNA variants, plays a central role in shaping immune responses. The findings provide new insights into immune-mediated diseases (such as infections, rheumatoid arthritis and lupus) and may open the door to more targeted therapies.