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Development of a matrix metalloproteinase-2 (MMP-2) biosensing system by integrating an enzyme-mediated color development reaction into a common electronics components setup

Development of a matrix metalloproteinase-2 (MMP-2) biosensing system by integrating an... Abstract Matrix metalloproteinase-2 (MMP-2) is closely related to the proliferation and invasion of various types of cancers. The protease is secreted by malignant tumor cells, thus allowing the enzyme to serve as a biomarker for cancer diagnosis. Methods have been developed to analyze MMP-2 activities; however, their applications to disease diagnosis have not been widely demonstrated yet because of the need for highend analytical equipment and labor-intensive processes. In this study, we developed an MMP-2 activity assay system by integrating an engineered autoinhibited β-lactamase which can be activated by MMP-2 in an optical sensing system consisting of reassembled common electronic components, such as a laser diode, a solar cell, and a multimeter. The autoinhibited β-lactamase was immobilized on a polymeric biosensing channel by a polydopamine coating and self-assembled monolayer methods. In the presence of MMP-2, the immobilized autoinhibited β-lactamase was converted to an active form that hydrolyzed the chromogenic cephalosporin CENTA, thereby changing the substrate color from pale yellow (λmax=340 nm) to highly discernible chrome yellow (λmax=405 nm). By reading the interfered laser-light intensity, we were able to analyze MMP-2 activities precisely both with the samples prepared in a buffer solution and also those in urine. These results suggested that the developed system can be used for the quantitative analysis of enzyme activity related to cancer diagnosis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png BioChip Journal Springer Journals

Development of a matrix metalloproteinase-2 (MMP-2) biosensing system by integrating an enzyme-mediated color development reaction into a common electronics components setup

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References (29)

Publisher
Springer Journals
Copyright
2016 The Korean BioChip Society and Springer-Verlag Berlin Heidelberg
ISSN
1976-0280
eISSN
2092-7843
DOI
10.1007/s13206-016-0306-5
Publisher site
See Article on Publisher Site

Abstract

Abstract Matrix metalloproteinase-2 (MMP-2) is closely related to the proliferation and invasion of various types of cancers. The protease is secreted by malignant tumor cells, thus allowing the enzyme to serve as a biomarker for cancer diagnosis. Methods have been developed to analyze MMP-2 activities; however, their applications to disease diagnosis have not been widely demonstrated yet because of the need for highend analytical equipment and labor-intensive processes. In this study, we developed an MMP-2 activity assay system by integrating an engineered autoinhibited β-lactamase which can be activated by MMP-2 in an optical sensing system consisting of reassembled common electronic components, such as a laser diode, a solar cell, and a multimeter. The autoinhibited β-lactamase was immobilized on a polymeric biosensing channel by a polydopamine coating and self-assembled monolayer methods. In the presence of MMP-2, the immobilized autoinhibited β-lactamase was converted to an active form that hydrolyzed the chromogenic cephalosporin CENTA, thereby changing the substrate color from pale yellow (λmax=340 nm) to highly discernible chrome yellow (λmax=405 nm). By reading the interfered laser-light intensity, we were able to analyze MMP-2 activities precisely both with the samples prepared in a buffer solution and also those in urine. These results suggested that the developed system can be used for the quantitative analysis of enzyme activity related to cancer diagnosis.

Journal

BioChip JournalSpringer Journals

Published: Sep 1, 2016

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