Chapter title |
Examination of Gelatinase Isoforms in Rodent Models of Acute Neurodegenerative Diseases Using Two-Dimensional Zymography
|
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Chapter number | 13 |
Book title |
Zymography
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Published in |
Methods in molecular biology, June 2017
|
DOI | 10.1007/978-1-4939-7111-4_13 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7109-1, 978-1-4939-7111-4
|
Authors |
Shanyan Chen, Fanjun Meng, Zhenzhou Chen, Zhe Qu, Jiankun Cui, Zezong Gu |
Editors |
Jeff Wilkesman, Liliana Kurz |
Abstract |
Pathological activation of gelatinases (matrix metalloproteinase-2 and -9; MMP-2/-9) has been shown to cause a number of detrimental outcomes in neurodegenerative diseases. In gel gelatin zymography is a highly sensitive methodology commonly used in revealing levels of gelatinase activity and in separating the proform and active form of gelatinases, based on their different molecular weights. However, this methodology is inadequate in resolving complex enzyme isoforms, because gelatinase expression and activity can be regulated at transcriptional and/or post-translational levels under in vivo conditions resulting in alternation of their isoelectric focusing (IEF) points. In this chapter, we describe an advanced methodology, termed two-dimensional zymography, combining IEF with zymographic electrophoresis under non-reducing conditions to achieve significant improvement in separation of the gelatinase isoforms in both cell-based and in vivo models for acute brain injuries and neuroinflammation. |
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