Development of Follicle-Stimulating Hormone Receptor Binding Probes to Image Ovarian Xenografts
| Autor: | Chung-Wein Lee, Keith M. Stantz, Daniela Matei, Lili Guo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
endocrine system
Cell Bioinformatics Article 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine In vivo Ovarian cancer Medicine Receptor Follicle-stimulating hormone receptor business.industry Follicle-stimulating hormone receptor binding Decapeptide Multimeric peptide medicine.disease 3. Good health medicine.anatomical_structure Near-infrared imaging Hormone receptor 030220 oncology & carcinogenesis Cancer research Signal transduction business |
| Zdroj: | Journal of biotechnology & biomaterials |
| ISSN: | 2155-952X |
| Popis: | The Follicle-Stimulating Hormone Receptor (FSHR) is used as an imaging biomarker for the detection of ovarian cancer (OC). FSHR is highly expressed on ovarian tumors and involved with cancer development and metastatic signaling pathways. A decapeptide specific to the FSHR extracellular domain is synthesized and conjugated to fluorescent dyes to image OC cells in vitro and tumors xenograft model in vivo. The in vitro binding curve and the average number of FSHR per cell are obtained for OVCAR-3 cells by a high resolution flow cytometer. For the decapeptide, the measured EC50 was 160 μM and the average number of receptors per cell was 1.7 x 107. The decapeptide molecular imaging probe reached a maximum tumor to muscle ratio five hours after intravenous injection and a dose-dependent plateau after 24-48 hours. These results indicate the potential application of a small molecular weight imaging probe specific to ovarian cancer through binding to FSHR. Based on these results, multimeric constructs are being developed to optimize binding to ovarian cells and tumors. |
| Databáze: | OpenAIRE |
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