Abstract:
:Fluorescence anisotropy measurements are widely used as sensitive indicators of cell membrane fluidity. 1-[4-(trimethylamino)phenyl]-6-phenyl hexa-1,3,5-triene (TMA-DPH) is a cationic fluorescent aromatic hydrocarbon that anchors at the lipid-water interface of membrane lipid bilayers. Its uptake into porcine pulmonary artery and aortic endothelial cells was monitored and the probe remained specifically localized on the cell surface for at least 4 h. It can therefore be recommended for use for specific plasma membrane lipid fluidity measurements in these cells. The effect of hyperoxia on plasma membrane fluidity was measured by using TMA-DPH. In both cell types, hyperoxic damage resulted in decreases in plasma membrane fluidity. Recovery was achieved 48 h after a 42-h hyperoxic exposure. These results indicate that TMA-DPH is a sensitive probe of plasma membrane lipid domains of pulmonary artery and aortic endothelial cells and that hyperoxia causes reversible changes in the physical state of superficial lipid domains of the plasma membrane of these cells.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Sheridan NP,Block ERdoi
10.1002/jcp.1041340114subject
Has Abstractpub_date
1988-01-01 00:00:00pages
117-23issue
1eissn
0021-9541issn
1097-4652journal_volume
134pub_type
杂志文章abstract::Osteoporosis, arthritis, Peget's disease, bone tumor, periprosthetic joint infection, and periprosthetic loosening have a common characteristic of osteolysis, which is characterized by the enhanced osteoclastic bone resorptive function. At present, the treatment target of these diseases is to interfere with osteoclast...
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journal_title:Journal of cellular physiology
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