Chapter title |
Considerations on Using Antibodies for Studying the Dynorphins/Kappa Opioid Receptor System.
|
---|---|
Book title |
The Kappa Opioid Receptor
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Published in |
Handbook of experimental pharmacology, June 2021
|
DOI | 10.1007/164_2021_467 |
Pubmed ID | |
Book ISBNs |
978-3-03-089073-5, 978-3-03-089074-2
|
Authors |
Chen, Chongguang, Widmann, Melanie, Schwarzer, Christoph, Liu-Chen, Lee-Yuan, Chongguang Chen, Melanie Widmann, Christoph Schwarzer, Lee-Yuan Liu-Chen |
Abstract |
Antibodies are important tools for protein and peptide research, including for the kappa opioid receptor (KOR) and dynorphins (Dyns). Well-characterized antibodies are essential for rigorous and reproducible research. However, lack of validation of antibody specificity has been thought to contribute significantly to the reproducibility crisis in biomedical research. Since 2003, many scientific journals have required documentation of validation of antibody specificity and use of knockout mouse tissues as a negative control is strongly recommended. Lack of specificity of antibodies against many G protein-coupled receptors (GPCRs) after extensive testing has been well-documented, but antibodies generated against partial sequences of the KOR have not been similarly investigated. For the dynorphins, differential processing has been described in distinct brain areas, resulting in controversial findings in immunohistochemistry (IHC) when different antibodies were used. In this chapter, we summarized accepted approaches for validation of antibody specificity. We discussed two KOR antibodies most commonly used in IHC and described generation and characterization of KOR antibodies and phospho-KOR specific antibodies in western blotting or immunoblotting (IB). In addition, applying antibodies targeting prodynorphin or mature dynorphin A illustrates the diversity of results obtained regarding the distribution of dynorphins in distinct brain areas. |
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