Tracheal epithelial cell-exosome-derived MiR-21-5p inhibits alveolar macrophage pyroptosis to resist pulmonary bacterial infection through PIK3CD-autophagy pathway

Jun Wang, Lin Gan, Fengyang Li, Qin Li, Tong Wu, Zengshuai Wu, Peiru Chen, Brendon P. Scicluna, Xin Feng, Jingmin Gu, Wenyu Han, Na Li, Liancheng Lei