CTLA4 and asthma: Liang et al. (Liang and Tang, 2020) demonstrated that MALAT1 could sponge miR-155, affecting the Th1/Th2 balance through a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4)-dependent mechanism, which might aid in the development of therapies for ameliorating inflammation in asthma.