FRET Based Ratio-Metric Sensing of Hyaluronidase in Synthetic Urine as a Biomarker for Bladder and Prostate Cancer

Autor: Aaron Chang, Mark E. Mummert, Ignacy Gryczynski, Rahul Chib, Sangram Raut, Ryan Rich, Zygmunt Gryczynski, Rafal Fudala
Rok vydání: 2013
Předmět:
Zdroj: Current Pharmaceutical Biotechnology. 14:470-474
ISSN: 1389-2010
Popis: 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.
Databáze: OpenAIRE