A Novel Method for Real-Time Quantification of Radioligand Binding to Living Tumor Cells In Vitro.

ABSTRACT: Background: Real-time quantification of radioligand binding to cells under in vivo-like conditions improves evaluation of clinical potential. Materials and Methods: SKOV-3 tumor cells were grown in a monolayer on a thin glass plate placed in a sealable shallow chamber with a continuous flow of ¹²⁵I-trastuzumab solution. The time-dependent cell binding was measured using a NaI detector, and the binding parameters were derived by computational analysis. Results: The detection efficiency of ¹²⁵I was 65 cps/kBq for radioligand bound to the cells. Experiments were analyzed to find the values of k_on and k_off. The resulting k_on was 3.2-7.9 × 10⁴ M^-1 s<

SUBMITTER: Back T 

PROVIDER: S-EPMC10880261 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature