Rapid Detection of Prostate Cancer Biomarkers in Living Cells and Urine Samples Using Diboronic Acid Fluorescent Probe
Sensors and actuators B, Chemical(2023)
摘要
Rapid and sensitive screening methods are critical for early-stage cancer diagnosis. Sialyl Lewis X (sLeX), a terminal O-glycan structure highly expressed on the surface of cancer cells, can be employed as a marker for cancer detection. In this study, a fluorescence analysis method based on a diboronic acid fluorescent (DBF) probe was established to detect the content of sLeX in solution under physiological conditions within 10 min and sLeX- carrying secreted proteins in prostate cancer cells within 15 min, with a limit of detection of 4.58 x 10-10 mol/L. Fluorescence microscopy imaging confirmed that proteins carrying sLeX were secreted from the cell into the extracellular space. Finally, urine samples from clinical patients (n = 15) and healthy volunteers (n = 5) were examined and analyzed using this method, and significant differences in sLeX levels between the two groups were found. In conclusion, we successfully established a method for detecting sLeX levels in urine samples of patients with prostate cancer using a DBF probe, which can be used to improve early non-invasive screening, disease development monitoring and prognostic detection of prostate cancer.
更多查看译文
关键词
Sialyl Lewis X,Diboronic acid fluorescent probe,Prostate cancer
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要