[Immuno'logical (the scientific updates you wouldn't dare to read anywhere else): X chromosome, Xist, and female autoimmunity].

This first article in the Immuno'logical series explores the role of the X chromosome and the non-coding RNA Xist in the female predisposition to autoimmune diseases, by breaking down three fundamental research studies to make them more digestible for non-experts. Xist is a non-coding RNA that inactivates one of the two X chromosomes in every female cell by wrapping around it. Here, we dive into how Xist is involved in the production of anti-RNP antibodies in lupus, how the TLR7 gene can be a rebel and escape Xist's control, and how a lack of affinity between Xist and its X chromosome can contribute to other autoimmune diseases. Let's be serious without taking ourselves too seriously, and uncover the fascinating world of Xist in autoimmunity!