First Author | Kim JH | Year | 2018 |
Journal | Sci Rep | Volume | 8 |
Issue | 1 | Pages | 3797 |
PubMed ID | 29491382 | Mgi Jnum | J:262722 |
Mgi Id | MGI:6163024 | Doi | 10.1038/s41598-018-22218-8 |
Citation | Kim JH, et al. (2018) Role of iRhom2 in intestinal ischemia-reperfusion-mediated acute lung injury. Sci Rep 8(1):3797 |
abstractText | Intestinal ischemia-reperfusion (I/R) may cause acute systemic and lung inflammation. However, the detailed mechanism of this inflammatory cascade has not been fully elucidated. Inactive rhomboid protein 2 (iRhom2) is essential for the maturation of TNF-alpha converting enzyme (TACE), which is required for TNF-alpha secretion. We evaluated the role of iRhom2 in a mouse model of intestinal I/R using iRhom2 knockout (KO) and wild-type (WT) mice. Lung injury following intestinal I/R was significantly attenuated in iRhom2 KO mice compared with WT mice. After intestinal I/R, lungs from iRhom2 KO mice showed significantly lower myeloperoxidase (MPO) activity and markedly reduced cell apoptosis associated with a decreased level of active caspase 3 and decreased TUNEL staining compared with lungs from WT mice. TNF-alpha levels were elevated in the serum and lungs of WT mice with intestinal I/R and significantly reduced in iRhom2 KO mice with intestinal I/R. iRhom2 may play a critical role in the pathogenesis of acute lung injury (ALI) after intestinal I/R and thus may be a novel therapeutic target for ALI after intestinal I/R injury. |