Protein tyrosine phosphatase CD45 as a molecular biosensor of hydrogen peroxide generation in cell culture media

2011 ◽  
Vol 415 (2) ◽  
pp. 270-273 ◽  
Author(s):  
Alicja Kuban-Jankowska ◽  
Narcyz Knap ◽  
Magdalena Gorska ◽  
Urszula Popowska ◽  
Michal Wozniak
Keyword(s):  
Hydrogen Peroxide ◽  
Cell Culture ◽  
Protein Tyrosine Phosphatase ◽  
Culture Media ◽  
Tyrosine Phosphatase ◽  
Cell Culture Media ◽  
Protein Tyrosine ◽  
Hydrogen Peroxide Generation

Formation of hydrogen peroxide in cell culture media by apple polyphenols and its effect on antioxidant biomarkers in the colon cell line HT-29

2009 ◽  
Vol 53 (10) ◽  
pp. 1226-1236 ◽  
Author(s):  
Phillip Bellion ◽  
Melanie Olk ◽  
Frank Will ◽  
Helmut Dietrich ◽  
Matthias Baum ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cell Culture ◽  
Cell Line ◽  
Culture Media ◽  
Cell Culture Media ◽  
Colon Cell ◽  
Colon Cell Line ◽  
Ht 29

scholarly journals The effect of hydrogen peroxide produced during ultraviolet disinfection of CHO cell culture media

2017 ◽  
Vol 61 ◽  
pp. 147-155 ◽  
Author(s):  
Emma V. Dare ◽  
Michelle Gabriel ◽  
Afroza Begum ◽  
Michael Sasges ◽  
Marc G. Aucoin
Keyword(s):  
Hydrogen Peroxide ◽  
Cell Culture ◽  
Culture Media ◽  
Ultraviolet Disinfection ◽  
Cho Cell ◽  
Cell Culture Media ◽  
Cho Cell Culture

scholarly journals Activation of Hydrogen Peroxide to Peroxytetradecanoic Acid Is Responsible for Potent Inhibition of Protein Tyrosine Phosphatase CD45

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e52495 ◽  
Author(s):  
Alicja Kuban-Jankowska ◽  
Jack A. Tuszynski ◽  
Philip Winter ◽  
Magdalena Gorska ◽  
Narcyz Knap ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Protein Tyrosine Phosphatase ◽  
Tyrosine Phosphatase ◽  
Protein Tyrosine ◽  
Potent Inhibition ◽  
Activation Of Hydrogen Peroxide

In vitro cytocompatibility testing of oxidative degradation products

2021 ◽  
pp. 088391152110031
Author(s):  
Scott M Herting ◽  
Mary Beth B Monroe ◽  
Andrew C Weems ◽  
Sam T Briggs ◽  
Grace K Fletcher ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cell Culture ◽  
Culture Media ◽  
Degradation Products ◽  
Oxidative Degradation ◽  
Cell Culture Media ◽  
Novel Approach ◽  
Gene And Protein Expression

Implantable medical devices must undergo thorough evaluation to ensure safety and efficacy before use in humans. If a device is designed to degrade, it is critical to understand the rate of degradation and the degradation products that will be released. Oxidative degradation is typically modeled in vitro by immersing materials or devices in hydrogen peroxide, which can limit further analysis of degradation products in many cases. Here we demonstrate a novel approach for testing the cytocompatibility of degradation products for oxidatively-degradable biomaterials where the materials are exposed to hydrogen peroxide, and then catalase enzyme is used to convert the hydrogen peroxide to water and oxygen so that the resulting aqueous solution can be added to cell culture media. To validate our results, expected degradation products are also synthesized then added to cell culture media. We used these methods to evaluate the cytocompatibility of degradation products from an oxidatively-degradable shape memory polyurethane designed in our lab and found that the degradation of these polymers is unlikely to cause a cytotoxic response in vivo based on the guidance provided by ISO 10993-5. These methods may also be applicable to other biocompatibility tests such as tests for mutagenicity or systemic toxicity, and evaluations of cell proliferation, migration, or gene and protein expression.

The oxidative mechanism of action of ortho-quinone inhibitors of protein-tyrosine phosphatase α is mediated by hydrogen peroxide

2004 ◽  
Vol 429 (1) ◽  
pp. 30-41 ◽  
Author(s):  
Michael P. Bova ◽  
Matthew N. Mattson ◽  
Stefan Vasile ◽  
Danny Tam ◽  
Leslie Holsinger ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Mechanism Of Action ◽  
Protein Tyrosine Phosphatase ◽  
Tyrosine Phosphatase ◽  
Protein Tyrosine
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