|
|
|
|
|
| Zhao,L.L.; Hu,G.C.; Zhu,S.S.; Li,J.F.; Liu,G.J.. |
| The aim of this study was to investigate the effect of propofol pretreatment on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and the role of the phosphoinositide-3-kinase/protein kinase B (PI3K/Akt) pathway in this procedure. Survival was determined 48 h after LPS injection. At 1 h after LPS challenge, the lung wet- to dry-weight ratio was examined, and concentrations of protein, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in bronchoalveolar lavage fluid (BALF) were determined using the bicinchoninic acid method or ELISA. Lung injury was assayed via lung histological examination. PI3K and p-Akt expression levels in the lung tissue were determined by Western blotting. Propofol pretreatment prolonged survival, decreased the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acute lung injury; Propofol; Lipopolysaccharide; PI3K/Akt pathway. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001201062 |
| |
|
|
| Yingchun,Li; Xiujuan,Qu; Jinglei,Qu; Ye,Zhang; Jing,Liu; Yuee,Teng; Xuejun,Hu; Kezuo,Hou; Yunpeng,Liu. |
| Arsenic trioxide (ATO) is a strong inducer of apoptosis in malignant hematological cells. Inducible phosphatidyl inositol 3 kinase (PI3K)-Akt activation promotes resistance to ATO. In the present study, we evaluated whether E3 ubiquitin ligase Cbl-b, a negative regulator of PI3K activation, is involved in the action of ATO. The effect of ATO on cell viability was measured by the Trypan blue exclusion assay or by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Apoptosis was determined by flow cytometry and protein expression was assayed by Western blotting. ATO decreased the viability of HL60 cells and induced cellular apoptosis, which was accompanied by transient activation of Akt. The PI3K/Akt inhibitor, LY294002,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arsenic trioxide; Apoptosis; Cbl-b; PI3K/Akt pathway. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000200004 |
| |
|
| |
|
|
|
