SIRT1 and myocardial infarction: In the study of Liang et al. [30], LncRNA KLF3-AS1 in exosomes secreted from human-MSCs (hMSCs) by acting as a ceRNA to sponge miR-138-5p can regulate Sirt1 so as to inhibit cell pyroptosis and attenuate myocardial infarction (MI) progression.