Journal: The FASEB Journal
Article Title: Orosomucoid 1 Participates in Alveolar Hypercoagulation and Fibrinolytic Inhibition Involving NF ‐ κB Signaling Pathway in LPS ‐Induced ARDS
doi: 10.1096/fj.202502459RR
Figure Lengend Snippet: ORM1 Suppression Ameliorates Alveolar Hypercoagulation and Fibrinolysis Inhibition In Vivo. (A–C) ELISA quantification of ORM1, TF, and PAI‐1 concentrations in bronchoalveolar lavage fluid (BALF) showing: Significant elevation of all three biomarkers at 24 h post‐LPS airway nebulization inhalation compared to controls, and marked reduction in their levels following ORM1 knockdown. (D–F) qRT‐PCR analysis reveals: Significant elevation of ORM1, TF, and PAI‐1 mRNA levels in LPS‐induced ARDS lung tissues compared to control, Marked downregulation of these transcripts following ORM1 knockdown. (J) Representative Western blots showing upregulated ORM1, TF, and PAI‐1 protein expression in lung tissues at 24 h post‐LPS induction, with significant reduction following ORM1 knockdown, Quantitative densitometric analysis of (G) ORM1, (H) TF, and (I) PAI‐1 protein levels normalized to GAPDH. (K) Collagen III deposition in lung parenchyma visualized by immunohistochemistry (brown staining indicates positive expression). Scale bars: 300 μm. Data represent mean ± SD ( n = 6), Significance in (A–I) were calculated using the one‐way analysis of variance (ANOVA) with Scheffé's post hoc test. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.
Article Snippet: Lung tissue sections were blocked with sheep serum (Sorabio, Beijing, China) for 15 min at room temperature, and for double immunofluorescence staining with ORM1 (1:100 dilution, Proteintech, Wuhan, China) and SP‐C antibodies (1:100 dilution, Affinity Biosciences, USA) for detection.
Techniques: Inhibition, In Vivo, Enzyme-linked Immunosorbent Assay, Knockdown, Quantitative RT-PCR, Control, Western Blot, Expressing, Immunohistochemistry, Staining