that inflammation of the pleural cavity rapidly activates mediastinal and pericardial FALCs. IL-33 produced by FALC stroma is crucial for pleural B1-cell activation and local IgM secretion.

More information: Dashuai Zhu et al, Minimally invasive delivery of therapeutic agents by hydrogel injection into the pericardial cavity for cardiac repair, Nature Communications (2021). DOI: 10. ...