DISTRIBUTION OF THE LABELED [¹²³I] PEPTIDE-PROTEIN DRUG CELLEX IN RATS

Abstract

The aim of this work was to study the distribution of the labeled 123I peptide-protein drug Cellex in organs and tissues of rats after single intravenous injection and accumulation. After a single intravenous injection of radiolabeled [123I]Cellex it was found that the drug is characterized by rapid distribution into tissues and organs. The highest content of the drug in all organs and tissues was observed in 15 minutes after its administration. It was established that the drug penetrates the blood-brain barrier and about 6% of the drug accumulates in the brain, which is 10% of the total amount of the drug found in all organs in 15 minutes after administration.

Keywords

• protein-peptide medicine
• radioactive label ¹²³i
• intravenous administration
• distribution in organs and tissues