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| Content Provider | PubMed Central |
|---|---|
| Author | Testa, Maria Pia Alvarado, Omar Andrea, Wournell Lee, Jonathan Guilford, Frederick T. Henriksen, Steven H. Phillips, Tom R. |
| Copyright Year | 2011 |
| Abstract | An often-suggested mechanism of virus induced neuronal damage is oxidative stress. Astrocytes have an important role in controlling oxidative stress of the Central Nervous System (CNS). Astrocytes help maintain a homeostatic environment for neurons as well as protecting neurons from Reactive Oxygen Species (ROS). CM-H2DCFDA is a cell-permeable indicator for the presence of ROS. CM-H2DCFDA enters the cell as a non-fluorescent compound, and becomes fluorescent after cellular esterases remove the acetate groups, and the compound is oxidized. The number of cells, measured by flow cytometry, that are found to be green fluorescing is an indication of the number of cells that are in an oxidative state. CM-H2DCFDA is susceptible to oxidation by a large number of different ROS. This lack of specificity, regarding which ROS can oxidize CM-H2DCFDA, makes this compound a valuable regent for use in the early stages of a pathogenesis investigation, as this assay can be used to screen for an oxidative cellular environment regardless of which oxygen radical or combination of ROS are responsible for the cellular conditions. Once it has been established that ROS are present by oxidation of CM-H2DCFDA, then additional experiments can be performed to determine which ROS or combination of ROSs are involved in the particular pathogenesis process. The results of this study demonstrate that with the addition of hydrogen peroxide an increase in CM-H2DCFDA fluoresce was detected relative to the saline controls, indicating that this assay is a valuable test for detecting an oxidative environment within G355-5 cells, a feline astrocyte cell line. |
| Related Links | http://dx.doi.org/10.3791/2841 |
| Starting Page | 2841 |
| File Format | |
| ISSN | 1940087X |
| e-ISSN | 1940087X |
| Journal | Journal of Visualized Experiments : JoVE |
| Issue Number | 53 |
| Language | English |
| Publisher | MyJove Corporation |
| Publisher Date | 2011-07-01 |
| Access Restriction | Open |
| Rights Holder | MyJove Corporation |
| Subject Keyword | Biochemistry, Genetics and Molecular Biology(all) Immunology and Microbiology(all) Chemical Engineering(all) Neuroscience(all) Medicine(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Neuroscience Immunology and Microbiology Biochemistry, Genetics and Molecular Biology Chemical Engineering |
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