Investigation of alkali metal polyfluorides by matrix-isolation spectroscopy
RSC ADVANCES
Authors: Redeker, F. A.; Beckers, H.; Riedel, S.
Abstract
IR laser ablation was used for the systematic matrix-isolation investigation of reaction products of alkali metal fluorides and fluorine. New insights about periodic trends in the reaction behaviour of alkali metals and the formation as well as the photochemistry of alkali metal trifluorides are presented. New bands were found for the antisymmetric stretches of CsF3 and [F-3](-) in solid krypton and nitrogen, and for the combination bands (v(as) + v(s)) of CsF3 and [F-3](-) in solid krypton and argon.
Mobilization of Bone Marrow Cells by CSF3 Protects Mice from Bleomycin-Induced Lung Injury
RESPIRATION
Authors: Zhang, Fen; Zhang, Lu; Jiang, Han-shui; Chen, Xue-yuan; Zhang, Yuan; Li, Hui-ping; Zhang, Rong-xuan; Zheng, Hui; Chu, Jian-xin; Chen, Xue-jin
Abstract
Background: Bone marrow-derived cells may play a role in tissue injury and repair. Growth factors facilitate the mobilization of bone marrow-derived cells to the site of injury. Objectives: The aim of this study was to determine the effect of the mobilization of autologous bone marrow-derived cells by granulocyte colony-stimulating factor (CSF3) on bleomycin-induced lung injury in mice. Methods: The bone marrow from male green fluorescent protein transgenic (C57Bl/6J) mice was transplanted into irradiated female C57Bl/6J mice. Bleomycin lung injury was induced in these bone marrow-reconstituted mice and unreconstituted C57Bl/6J mice, and some mice were treated with recombinant CSF3. Lung histology, survival, cytokine expression and matrix metalloproteinase (MMP) expression were evaluated to determine the effect of CSF3 after bleomycin-induced lung injury. Results: Histology and flow cytometry analysis showed successful mobilization of bone marrow-derived cells by CSF3 treatment in the recipient lungs. Importantly, CSF3 attenuated bleomycin-induced lung injury and improved survival. Furthermore, CSF3 administration regulated transforming growth factor-beta, interferon-gamma, MMP9 and tissue inhibitors of MMP1 expression during bleomycin injury. Conclusions: These data demonstrated that the mobilization of bone marrow-derived cells by CSF3 has a protective effect against bleomycin-induced lung injury and fibrosis. Copyright (C) 2011 S. Karger AG, Basel