Radioiodination of 3-amino-2-quinoxalinecarbonitrile 1,4-dioxide and its biological distribution in Erhlich ascites cancer bearing mice as a preclinical tumor imaging agent
- Авторы: Ibrahim I.1, Abdelhalim S.1, Sanad M.1, Motaleb M.1
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Учреждения:
- Labeled Compounds Department
- Выпуск: Том 59, № 3 (2017)
- Страницы: 301-306
- Раздел: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/223964
- DOI: https://doi.org/10.1134/S1066362217030146
- ID: 223964
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Аннотация
3-Amino-2-quinoxalinecarbonitrile 1,4-dioxide (QN) was labeled with 125I, and the biological distribution of the product was studied. 125I-QN was prepared by direct electrophilic substitution reaction using N-bromosuccinimide (NBS) as an oxidizing agent. The radiochemical yield of 92% was reached under the following optimum conditions: pH 7, 15 min, 100 μg of QN, and 75 μg of NBS. The labeled QN was stable for up to 12 h post labeling. Biodistribution study of 125I-QN in tumor-bearing mice reflected that it accumulated in tissues with high proliferation rate with preferential accumulation in tumor sites. 125I-QN was incorporated rapidly in the tumor site (T/NT = 4 at 2 h post injection), and then its content slowly decreased, whereas in the other tissues it decreased rapidly. The results obtained encourage the use of 123I-QN as a tumor imaging agent.
Об авторах
I. Ibrahim
Labeled Compounds Department
Автор, ответственный за переписку.
Email: ismailtaha_73@yahoo.com
Египет, Cairo
S. Abdelhalim
Labeled Compounds Department
Email: ismailtaha_73@yahoo.com
Египет, Cairo
M. Sanad
Labeled Compounds Department
Email: ismailtaha_73@yahoo.com
Египет, Cairo
M. Motaleb
Labeled Compounds Department
Email: ismailtaha_73@yahoo.com
Египет, Cairo