| First Author | Yan Y | Year | 2019 |
| Journal | Biochem Biophys Res Commun | Volume | 510 |
| Issue | 3 | Pages | 352-357 |
| PubMed ID | 30717971 | Mgi Jnum | J:291090 |
| Mgi Id | MGI:6442651 | Doi | 10.1016/j.bbrc.2019.01.079 |
| Citation | Yan Y, et al. (2019) MiR-155 expressed in bone marrow-derived lymphocytes promoted lipopolysaccharide-induced acute lung injury through Ang-2-Tie-2 pathway. Biochem Biophys Res Commun 510(3):352-357 |
| abstractText | Acute lung injury (ALI) is a type of diffuse lung inflammation with a high mortality rate. Studies show that miR-155 plays an important role in inflammation. Here, we investigated the role of miR-155 in lipopolysaccharide (LPS)-induced ALI. The mice with bone marrow transplantation between MiR-155 knockout and wild-type were used as animal models of LPS-induced sepsis. In response to LPS injection, ALI was less severe in miR-155 knockout mice than in wild-type mice, and mainly manifested as reduced pulmonary vascular leakage, pulmonary edema, and neutrophil infiltration. The expression levels of Ang-2 and apoptosis-associated caspases-3 and -9, as well as myosin light chain (MLC) phosphorylation in the lungs were also decreased. A bone marrow transplantation experiment showed that miR-155 expressed in bone marrow-derived lymphocytes rather than lung parenchymal lymphocytes promoted inflammation. Findings suggest that miR-155 expressed in bone marrow-derived lymphocytes promoted LPS-induced ALI through the modulation of the Ang-2-Tie-2 pathway. |
