Abstract
Elevated hyaluronidase levels are found in the urine of bladder and prostate cancer patients. Therefore, HA-ase is regarded as an important biomarker for the detection of these cancers. In this report, we use a FRET based ratiometric sensing approach to detect the level of HA-ase in synthetic urine. For this, we have used a HA-FRET probe (hyaluronan) labeled with fluorescein as a donor and rhodamine as an acceptor. We monitor the digestion of our HA-FRET probe with different concentrations of HA-ase in synthetic urine via fluorescence emission. The extent to which FRET is released depends on the concentration of HA-ase. Our fluorescence intensity results are also supported with time resolved fluorescence decay data. This assay can be used to develop a non-invasive technique for the detection of bladder and/or prostate cancer progression.
Keywords: Ratiometric sensing, Hyaluronidase, HA-FRET, Bladder cancer.
Current Pharmaceutical Biotechnology
Title:FRET Based Ratio-Metric Sensing of Hyaluronidase in Synthetic Urine as a Biomarker for Bladder and Prostate Cancer
Volume: 14 Issue: 4
Author(s): Rahul Chib, Sangram Raut, Rafal Fudala, Aaron Chang, Mark Mummert, Ryan Rich, Zygmunt Gryczynski and Ignacy Gryczynski
Affiliation:
Keywords: Ratiometric sensing, Hyaluronidase, HA-FRET, Bladder cancer.
Abstract: Elevated hyaluronidase levels are found in the urine of bladder and prostate cancer patients. Therefore, HA-ase is regarded as an important biomarker for the detection of these cancers. In this report, we use a FRET based ratiometric sensing approach to detect the level of HA-ase in synthetic urine. For this, we have used a HA-FRET probe (hyaluronan) labeled with fluorescein as a donor and rhodamine as an acceptor. We monitor the digestion of our HA-FRET probe with different concentrations of HA-ase in synthetic urine via fluorescence emission. The extent to which FRET is released depends on the concentration of HA-ase. Our fluorescence intensity results are also supported with time resolved fluorescence decay data. This assay can be used to develop a non-invasive technique for the detection of bladder and/or prostate cancer progression.
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Chib Rahul, Raut Sangram, Fudala Rafal, Chang Aaron, Mummert Mark, Rich Ryan, Gryczynski Zygmunt and Gryczynski Ignacy, FRET Based Ratio-Metric Sensing of Hyaluronidase in Synthetic Urine as a Biomarker for Bladder and Prostate Cancer, Current Pharmaceutical Biotechnology 2013; 14 (4) . https://dx.doi.org/10.2174/13892010113149990222
DOI https://dx.doi.org/10.2174/13892010113149990222 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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