SRSF1 and systemic lupus erythematosus: SRSF1‐mediated production of type I IFNs also prevents the development of systemic lupus erythematosus (SLE) by restraining T‐cell activation (Katsuyama et al, 2019) and is required for neuro‐immune suppression of the human neurotropic JC virus (JCV) (Sariyer et al, 2016).