Journal: bioRxiv
Article Title: Spatial expression of an mRNA encoding Tie2-agonist in the capillary endothelium of the lung prevents pulmonary vascular leakage
doi: 10.1101/2022.10.12.511878
Figure Lengend Snippet: (A) Schematic diagram of the experimental protocol of the ex vivo perfused and ventilated mouse lung model. 6 h, 15 h after administration of mRNA-76-cLNP (1, 1.5 and 2 mg/kg) or control mRNA LUC -LNP (2 mg/kg) lungs were isolated and stimulated with PLY (1.4 μg/ml) for 1 minute. After 30 min, lung vascular permeability was assessed by quantifying respective concentrations of continuously infused human serum albumin (HSA) in the bronchoalveolar lavage fluid (BALF). (B) Graphic showing treatment with mRNA-76 to significantly decrease pneumolysin-induced hyperpermeability of mouse lungs as compared to treatment with control mRNA LUC -LNP 6 h (left) and 15 h (right) post mRNA-76-cLNP treatment as shown by HAS ELISA. Values are given as mean ( n = 10, **p<0.01 between indicated groups) concentration of human serum albumin (HSA) in bronchoalveolar lavage fluid (BALF). HSA concentration of individual mice are indicated as dots.
Article Snippet: Thirty minutes after PLY challenge, bronchoalveolar lavage (BAL) was performed (2 x 650 μl, 0.9 % saline buffer), and HSA concentration was measured in BAL fluid (BALF) via ELISA (Bethyl Laboratories, cat. #E88-129) in order to quantify the lung barrier failure ( ; ).
Techniques: Ex Vivo, Control, Isolation, Permeability, Enzyme-linked Immunosorbent Assay, Concentration Assay