¹⁵⁷Gd-DOTA-PSMA as theranostic bio-gadolinium agent for prostate cancer targeted gadolinium neutron capture therapy.

ABSTRACT:

Purpose

Gadolinium-neutron capture therapy (Gd-NCT) employs isotopically enriched Gadolinium (Gd) and thermal neutrons to selectively target cancer cells. This study investigated the targeting efficacy of ¹⁵⁷Gd-DOTA-PSMA (Prostate-Specific Membrane Antigen) in prostate cancer and explored its potential applications in Gd-NCT.

Methods and results

We developed ¹⁵⁷Gd-DOTA-PSMA, a novel theranostic bio-gadolinium agent specifically designed for magnetic resonance imaging (MRI)-guided Gd-NCT. ⁶⁸ Ga-DOTA-PSMA positron emission tomography-computed tomography (PET/CT) imaging showed peak radiotracer uptake at 2 h post-injection, with a tumor-to-non-tumor (T/NT) ratio of 6.95 ± 0.60. MRI analysis confirmed a stable T₁ signal enhancement 2 h

SUBMITTER: Xie L 

PROVIDER: S-EPMC11861226 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature