IB-exos mitigate sepsis-induced lung injury in mice. A. The histology of the lung tissues in different groups (Control, Sepsis, B-exos, IB-exos) were accessed by HE staining (n = 6). B. The serum content of TNF-a, IL-6, IL-1β in different groups of mice (Control, Sepsis, B-exos, IB-exos) were accessed by ELISA (n = 6). C. The mRNA levels of SIRT1, GRP78, and CHOP in the lung tissues of different groups of mice (Control, Sepsis, B-exos, IB-exos) were accessed by qRT-PCR (n = 6). D. The protein levels of GRP78, and CHOP in the lung tissues of different groups of mice (Control, Sepsis, B-exos, IB-exos) were accessed by immunofluorescence staining (n = 6). Scale bar = 50 μm. Statistical analysis was performed using one-way ANOVA. *P < 0.05, **P < 0.01.