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The enhanced reactivity of endogenous biotin-like molecules by antigen retrieval procedures and signal amplification with tyramine

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Authors
Kim, Seok Hyung; Jung, Kyeong Cheon; Shin, Young Kee; Lee, Kyung Mee; Park, Young S.; Choi, Yoon La; Oh, Kwon Ik; Kim, Min Kyung; Chung, Doo Hyun; Song, Hyung Geun; Park, Seong Hoe
Issue Date
2002
Publisher
Kluwer Academic Publishers
Citation
Histochem J; Vol.34, No.3-4; pp.97–103
Abstract
In diagnostic pathology and immunocytochemical research, immunohistochemical techniques using the streptavidin–biotin–peroxidase system have played an extremely valuable role. This system, based on the high affinity of streptavidin for biotin, may, however, provoke false positive results because of endogenous streptavidin-binding sites in human tissues.With the advent of the
antigen retrieval procedure and signal amplification method, this problem can be serious enough to cause mistakes in interpreting immunohistochemical staining results. Therefore, we examined the distribution of endogenous biotin-like molecules in various human tissues and the influence of various antigen retrieval procedures with or without signal amplification using biotinylated
tyramine to reveal these biotin-like activities. We observed that endogenous biotin-like molecules were present in a wide
range of tissues, and their activity was markedly enhanced by employing antigen retrieval procedures or signal amplification.
Furthermore, the extent to which the activity of endogenous biotin-like activities was enhanced depended on the kinds of antigen retrieval procedures and signal amplification employed. Pressure cooking and tyramine amplification with microwave heating showed the highest activities. These results show that the antigen retrieval procedures and signal amplification with tyramine can enhance the activity of endogenous biotin or biotin-like molecules as well as antigenicity, which can be a pitfall in the interpretation of immunohistochemical data.
ISSN
1573-6865
Language
English
URI
http://hdl.handle.net/10371/73497
DOI
https://doi.org/10.1023/A:1020954611464
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College of Pharmacy (약학대학)Dept. of Pharmacy (약학과)Journal Papers (저널논문_약학과)
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