[An experimental study of tumor-tropic properties of radionuclide-labeled liposomes]

The paper is concerned with the results of experimental investigations to develop methods for obtaining 99mTc and 67Ga-labeled liposomes, possessing tumor-tropic properties. Sphingomyelin vesiculae, labeled with 67Ga with the help of bifunctional chelates, were shown to possess a high level of hyperfixation. A study of biodistribution of these liposomes in rats with Plis lymphosarcoma showed that the level of accumulation of 67Ga-liposomes was enough to obtain a clear scintigraphic tumor image.