Technetium-99m (Tc-99m) is the most employed radionuclide in nuclear imaging diagnostics worldwide for many diseases. The ideal physiochemical properties of Tc-99m (such as half-life and pure gamma energy) make it favorable for Single Photon Emission Computed Tomography (SPECT). In this study, we aim to expand the utilization of Tc-99m radiopharmaceutical toward prostate cancer diagnostics which is currently no FDA approved products and has been intensively examined for a potential candidate. The new formulation for Tc-99m complexation with PSMA-617, a current ligand for radionuclide therapy of prostate cancer with lutetium-177 (Lu-177), has been investigated. Co-complexation with citrate was utilized to improve the labeling efficiency by over 97 %. The stability of the new radiopharmaceutical was in vitro evaluated confirming that the Tc-99m labeled PSMA-617 remained stable for over a single half-life of Tc-99m in normal saline solution and in human serum. The in vivo study in the LNCaP xenografted mouse model confirmed a high selectivity of the new tracer toward prostate cancer.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.bmc.2024.118058 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
[Treatment algorithm following first-line therapy failure in metastatic prostate cancer].
Urologie
January 2025
Klinik für Urologie, Campus Lübeck, Universitätsklinikum Schleswig-Holstein, Lübeck, Deutschland.
This article provides a comprehensive overview of the current treatment options for patients with metastatic castration-resistant prostate cancer (mCRPC) following the failure of first-line therapy. Although significant progress has been made in the primary treatment of hormone-sensitive prostate cancer, the management of mCRPC remains a clinical challenge. The article outlines the diagnostic criteria for mCRPC, which can be confirmed through biochemical progression and imaging techniques.
View Article and Find Full Text PDF[Next generation sequencing (NGS)-based molecular panel analysis for metastatic prostate cancer: how often can we detect druggable mutations? : NGS for metastatic adenocarcinoma of the prostate].
Urologie
January 2025
Klinik für Urologie, Uro-Onkologie, roboter-assistierte und spezielle urologische Chirurgie, Uniklinik Köln, Kerpener Str. 62, 50927, Köln, Deutschland.
Introduction: Prostate cancer guidelines recommend molecular analysis of biomaterial following resistance to first-line systemic therapy in order to identify druggable mutations. We report on our results of molecular analysis of tissue specimens via next generation sequencing (NGS) in men with metastatic castration resistant prostate cancer (mCRPC).
Patients And Methods: In all, 311 mCRPC patients underwent NGS analysis from biopsy samples of progressive metastatic lesions or archival radical prostatectomy specimens.
Prospective Validation of an Automated Hybrid Multidimensional MRI Tool for Prostate Cancer Detection Using Targeted Biopsy: Comparison with PI-RADS-based Assessment.
Radiol Imaging Cancer
January 2025
From the Department of Radiology (A.C., A.N.Y., R.E., C.H., G.L., M.M., E.B.J., A.L.C., B.G., G.S.K., A.O.), Sanford J. Grossman Center of Excellence in Prostate Imaging and Image Guided Therapy (A.C., A.N.Y., M.M., A.L.C., B.G.), Department of Surgery, Section of Urology (G.G., L.F.R., P.K.M., S.E.), Department of Pathology (T.A.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC 2026, Chicago, IL 60637.
Purpose To evaluate the use of an automated hybrid multidimensional MRI (HM-MRI)-based tool to prospectively identify prostate cancer targets before MRI/US fusion biopsy in comparison with Prostate Imaging and Reporting Data System (PI-RADS)-based multiparametric MRI (mpMRI) evaluation by expert radiologists. Materials and Methods In this prospective clinical trial (ClinicalTrials.gov registration no.
View Article and Find Full Text PDFEditorial Comment on "Changes in the treatment landscape of metastatic hormone-sensitive prostate cancer following approval of upfront androgen receptor signaling inhibitors: A multicenter study".
Int J Urol
January 2025
Department of Urology, Gunma University Graduate School of Medicine, Gunma, Japan.
Value of Systematic and MRI-Ultrasound Fusion Prostate Biopsy in Different Prostate Specific Antigen (PSA) Levels.
Cancer Rep (Hoboken)
January 2025
Uro-Oncology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Background: Current approach to clinically suspicious biopsy-naïve men consists performing prostate MRI, followed by combined systematic (TRUS-Bx) and MRI-Ultrasound fusion biopsy (MRI-TBx) in those with PIRADS score ≥ 3. Researchers have attempted to determine who benefits from each biopsy method, but the results do not support the safe use of one method alone. This study aims to determine the optimal approach in biopsy-naïve men, according to their PSA levels.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!