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. Author manuscript; available in PMC: 2022 Feb 21.
Published in final edited form as: Shock. 2021 Jan 1;55(1):14–23. doi: 10.1097/SHK.0000000000001601

Fig. 1. The summary of alveolar macrophage functions.

Fig. 1.

Alveolar macrophages (AMs) play important roles in the clear of airborne foreign particles/pathogens, phagocytosis of apoptotic cells, inhibition of monocyte/neutrophil recruitment, proliferation/differentiation of type II alveolar epithelial cells (AEC II) (epithelial progenitor cells), repair of epithelial barrier by junctional sealing and resolution of inflammation.