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Protein interactions with HER-family receptors can have different characteristics depending on the hosting cell line
P. Barta, J. Malmberg, L. Melicharova, J. Strandgård, A. Orlova, V. Tolmachev, M. Laznicek, K. Andersson,
Jazyk angličtina Země Řecko
Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem
ProQuest Central od 2012-01-01
Nursing & Allied Health Database (ProQuest) od 2012-01-01
Health & Medicine (ProQuest) od 2012-01-01
Odkazy
PubMed
22200885
DOI
10.3892/ijo.2011.1307
Knihovny.cz E-zdroje
- MeSH
- afinita protilátek MeSH
- buňky Hep G2 MeSH
- erbB receptory metabolismus MeSH
- humanizované monoklonální protilátky metabolismus MeSH
- interakční proteinové domény a motivy MeSH
- kinetika MeSH
- lidé MeSH
- mapování interakce mezi proteiny MeSH
- monoklonální protilátky metabolismus MeSH
- radioizotopy jodu MeSH
- radioligandová zkouška MeSH
- receptor erbB-2 metabolismus MeSH
- rekombinantní fúzní proteiny metabolismus MeSH
- vazba proteinů MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
Cell lines are common model systems in the development of therapeutic proteins and in the research on cellular functions and dysfunctions. In this field, the protein interaction assay is a frequently used tool for assessing the adequacy of a protein for diagnostic and therapeutic purposes. In this study, we investigated the extent to which the interaction characteristics depend on the choice of cell line for HER-family receptors. The interaction characteristics of two therapeutic antibodies (trastuzumab and cetuximab) and one Affibody molecule (ZHER2:342), interacting with the intended receptor were characterized with high precision using an automated real-time interaction method, in different cell lines (HaCaT, A431, HEP-G2, SKOV3, PC3, DU-145). Clear differences in binding affinity and kinetics, up to one order of magnitude, were found for the interaction of the same protein binding to the same receptor on different cells for all three proteins. For HER-family receptors, it is therefore important to refer to the measured affinity for a protein-receptor interaction together with the hosting cell line. The ability to accurately measure affinity and kinetics of a protein-receptor interaction on cell lines of different origins may increase the understanding of underlying receptor biology, and impact the selection of candidates in the development of therapeutic or diagnostic agents.
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- $a Cell lines are common model systems in the development of therapeutic proteins and in the research on cellular functions and dysfunctions. In this field, the protein interaction assay is a frequently used tool for assessing the adequacy of a protein for diagnostic and therapeutic purposes. In this study, we investigated the extent to which the interaction characteristics depend on the choice of cell line for HER-family receptors. The interaction characteristics of two therapeutic antibodies (trastuzumab and cetuximab) and one Affibody molecule (ZHER2:342), interacting with the intended receptor were characterized with high precision using an automated real-time interaction method, in different cell lines (HaCaT, A431, HEP-G2, SKOV3, PC3, DU-145). Clear differences in binding affinity and kinetics, up to one order of magnitude, were found for the interaction of the same protein binding to the same receptor on different cells for all three proteins. For HER-family receptors, it is therefore important to refer to the measured affinity for a protein-receptor interaction together with the hosting cell line. The ability to accurately measure affinity and kinetics of a protein-receptor interaction on cell lines of different origins may increase the understanding of underlying receptor biology, and impact the selection of candidates in the development of therapeutic or diagnostic agents.
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