Preparation, distribution, stability and tumor imaging properties of [62 Zn] bleomycin complex in normal and tumor - bearing mice
Iranian Journal of Radiation Research. 2003; 1 (1): 37-44
en Inglés
| IMEMR
| ID: emr-62307
ABSTRACT
Bleomycin [BLM] has been labeled with radioisotopes and widely used in therapy and diagnosis. In this study BLM was labeled with [62Zn] zinc chloride for oncologic PET studies. The complex was obtained at the pH=2 in normal saline at 90°C in 60 min. Radio-TLC showed an overall radiochemical yield of 95-97% [radiochemical purity > 97%]. Stability of complex was checked in vitro in mice and human plasma/urine. Preliminary in vivo studies performed to determine complex stability and distribution of [62Zn] BLM in normal and fibrosarcoma-bearing mice. [62Zn] BLM accumulated significantly in induced fibrosarcoma tumors in mice according to bio-distribution/imaging studies. [62Zn] BLM can be used in PET oncology studies due to its suitable physico-chemical properties as a diagnostic complex in vitro and in vivo. Further studies should be performed for evaluation of the complex behavior in higher animals
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Índice:
IMEMR (Mediterraneo Oriental)
Asunto principal:
Radioisótopos de Zinc
/
Tomografía Computarizada de Emisión
/
Ratones
/
Neoplasias
/
Antineoplásicos
Límite:
Animales
Idioma:
Inglés
Revista:
Iran. J. Radiat. Res.
Año:
2003
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