Chick Heart Invasion Assay

2013 ◽  
pp. 93-106 ◽  
Author(s):  
Marc E. Bracke ◽  
Virinder S. Parmar ◽  
Anthony L. DePass ◽  
Christian V. Stevens ◽  
Barbara W. Vanhoecke ◽  
...  
Keyword(s):  
Invasion Assay ◽  
Chick Heart

Chick Heart Invasion Assay

2003 ◽  
pp. 091-102
Author(s):  
Marc E Bracke ◽  
Tom Boterberg ◽  
Marc M Mareel
Keyword(s):  
Invasion Assay ◽  
Chick Heart

scholarly journals Chick Heart Invasion Assay for Testing the Invasiveness of Cancer Cells and the Activity of Potentially Anti-invasive Compounds

10.3791/52792 ◽  
2015 ◽  
Author(s):  
Marc E. Bracke ◽  
Bart I. Roman ◽  
Christian V. Stevens ◽  
Liselot M. Mus ◽  
Virinder S. Parmar ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Invasion Assay ◽  
Chick Heart

Techniques for cryoultramicrotomy of propane jet frozen biological samples

1986 ◽  
Vol 44 ◽  
pp. 260-261
Author(s):  
B. Craig ◽  
L. Hawkey ◽  
A. LeFurgey
Keyword(s):  
Freeze Fracture ◽  
Freeze Substitution ◽  
Heart Cells ◽  
Crystal Formation ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Chick Heart ◽  
Embryonic Chick Heart ◽  
A New Technique

Ultra-rapid freezing followed by cryoultramicrotomy is essential for the preservation of diffusible elements in situ within cells prior to scanning transmission electron microscopy and quantitative energy dispersive x-ray microanalysis. For cells or tissue fragments in suspension and for monolayer cell cultures, propane jet freezing provides cooling rates greater than 30,000°C/sec with regions up to 40μm in thickness free of significant ice crystal formation. While this method of freezing has frequently been applied prior to freeze fracture or freeze substitution, it has not been widely utilized prior to cryoultramicrotomy and subsequent x-ray microanalytical studies. This report describes methods devised in our laboratory for cryosectioning of propane jet frozen kidney proximal tubule suspensions and cultured embryonic chick heart cells, in particular a new technique for mounting frozen suspension specimens for sectioning. The techniques utilize the same specimen supports and sample holders as those used for freeze fracture and freeze substitution and should be generally applicable to any cell suspension or culture preparation.

The Migration of Human Smooth Muscle Cells In Vitro Is Mediated by Plasminogen Activation and Can Be Inhibited by α2-Macroglobulin Receptor Associated Protein

1997 ◽  
Vol 78 (02) ◽  
pp. 880-886 ◽  
Author(s):  
Monique J Wijnberg ◽  
Paul H A Quax ◽  
Nancy M E Nieuwenbroek ◽  
Jan H Verheijen
Keyword(s):  
Smooth Muscle ◽  
Cell Migration ◽  
Smooth Muscle Cell ◽  
Muscle Cell ◽  
Ldl Receptor ◽  
Migration And Invasion ◽  
Invasion Assay ◽  
Plasminogen Activation ◽  
Smooth Muscle Cell Migration

SummaryThe plasminogen activation system is thought to be important in cell migration processes. A role for this system during smooth muscle cell migration after vascular injury has been suggested from several animal studies. However, not much is known about its involvement in human vascular remodelling. We studied the involvement of the plasminogen activation system in human smooth muscle cell migration in more detail using an in vitro wound assay and a matrix invasion assay. Inhibition of plasmin activity or inhibition of urokinase-type plasminogen activator (u-PA) activity resulted in approximately 40% reduction of migration after 24 h in the wound assay and an even stronger reduction (70-80%) in the matrix invasion assay. Migration of smooth muscle cells in the presence of inhibitory antibodies against tissue-type plasminogen activator (t-PA) was not significantly reduced after 24 h, but after 48 h a 30% reduction of migration was observed, whereas in the matrix invasion assay a 50% reduction in invasion was observed already after 24 h. Prevention of the interaction of u-PA with cell surface receptors by addition of soluble u-PA receptor or α2-macroglobulin receptor associated protein (RAP) to the culture medium, resulted in a similar inhibition of migration and invasion. From these results it can be concluded that both u-PA and t-PA mediated plasminogen activation can contribute to in vitro human smooth muscle cell migration and invasion. Furthermore, the interaction between u-PA and its cell surface receptor appears also to be involved in this migration and invasion process. The inhibitory effects on migration and invasion by the addition of RAP suggests an involvement of a RAP sensitive receptor of the LDL receptor family, possibly the LDL-receptor related protein (LRP) and/or the VLDL receptor.

Tumor Cell Invasion Assay

BIO-PROTOCOL ◽  
2012 ◽  
Vol 2 (3) ◽  
Author(s):  
Yanling Chen
Keyword(s):  
Tumor Cell ◽  
Cell Invasion ◽  
Tumor Cell Invasion ◽  
Invasion Assay

Acetylcholinesterase-acetylcholine, an enzyme system essential to rhythmicity in the preneural embryonic chick heart

1966 ◽  
Vol 154 (3) ◽  
pp. 675-683 ◽  
Author(s):  
George Hugo Paff ◽  
Robert Joseph Boucek ◽  
Thorne Parsons Glander
Keyword(s):  
Enzyme System ◽  
Embryonic Chick ◽  
Chick Heart ◽  
Embryonic Chick Heart

Developing innervation of the chick heart: A histofluorescence and light microscopic study of sympathetic innervation

1980 ◽  
Vol 196 (3) ◽  
pp. 333-340 ◽  
Author(s):  
Margaret L. Kirby ◽  
John W. McKenzie ◽  
Thomas A. Weidman
Keyword(s):  
Microscopic Study ◽  
Sympathetic Innervation ◽  
Chick Heart ◽  
Light Microscopic Study
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