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Real-time monitoring of odorant-induced cellular reactions using surface plasmon resonance

Cited 60 time in Web of Science Cited 74 time in Scopus
Authors
Lee, Sang Hun; Ko, Hwi Jin; Park, Tai Hyun
Issue Date
2009-06-10
Publisher
Elsevier
Citation
Biosens. Bioelectron. 25, 55-60
Keywords
Olfactory receptor I7Human embryonic kidney (HEK)-293 cellOlfactory biosensorSurface plasmon resonance
Abstract
Surface plasmon resonance (SPR) is a powerful technique for measuring molecular interaction in real-time. SPR can be used to detect molecule to cell interactions as well as molecule to molecule interactions. In this study, the SPR-based biosensing technique was applied to real-time monitoring of odorant-induced cellular reactions. An olfactory receptor, OR I7, was fused with a rho-tag import sequence at the N-terminus of OR I7, and expressed on the surface of human embryonic kidney (HEK)-293 cells. These cells were then immobilized on a SPR sensor chip. The intensity of the SPR response was linearly dependent on the amount of injected odorant. Among all the aldehyde containing odorants tested, the SPR response was specifically high for octanal, which is the known cognate odorant for the OR I7. This SPR response is believed to have resulted from intracellular signaling triggered by the binding of odorant molecules to the olfactory receptors expressed on the cell surface. This SPR system combined with olfactory receptor-expressed cells provides a new olfactory biosensor system for selective and quantitative detection of volatile compounds.
ISSN
0956-5663
Language
English
URI
https://hdl.handle.net/10371/7432
DOI
https://doi.org/10.1016/j.bios.2009.06.007
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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