TNFSF13B and inflammation: Concomitant with pulmonary inflammation and ELS formation, bronchoalveolar lavage fluid (BALF) from cSiO2-exposed mice contained large numbers of neutrophils and macrophages as well as elevated concentrations of IgG, autoantibodies, IL-1β, IL-6, TNF-α, and B cell activating factor (BAFF).