Synthesis, labeling and quality control of a new Neuropeptide Y analogue for diagnosis of breast tumors

Publish Year: 1387
نوع سند: مقاله ژورنالی
زبان: English
View: 338

This Paper With 5 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_IRJNM-16-1_003

تاریخ نمایه سازی: 27 فروردین 1399

Abstract:

  Introduction: Over expression of selected peptide receptors in human tumors has been shown to represent clinically relevant targets for cancer diagnosis and therapy. The aim of this work was to investigate Neuropeptide Y (NPY) as a new radiopharmaceutical for diagnosis of breast cancer. Methods: A neuropeptide Y analogues with Y1 receptor preference and agonistic properties was synthesized by solid phase method. After conjugation with diethylenetriaminepentaacetic acid (DTPA) labeling with 111In was performed. For labeled peptide, yield of labeling, stability in human serum, receptor binding in cell surface with internalization in SK-N-MC cells, and biodistribution in normal rat were determined. Results: Peptide was synthesized and labeled with more than 95% purity. Radiolabeled peptide was stable in human serum and specifically binds and internalized in the cells with Y1 receptor (4h = 22%). A rapid clearance from blood pool and urinary with hepatobiliary excretion were observed. Conclusion: Our results showed that this peptide can be considered as a candidate for diagnosis of breast tumors

Authors

Mostafa Gandomkar

Nuclear Science Research School, Nuclear Science & Technology Research Institute (NSTRI), Atomic Energy Organization of Iran, Tehran, Iran

Reza Najafi

Nuclear Science Research School, Nuclear Science & Technology Research Institute (NSTRI), Atomic Energy Organization of Iran, Tehran, Iran

Mohammad Mazidi

Nuclear Science Research School, Nuclear Science & Technology Research Institute (NSTRI), Atomic Energy Organization of Iran, Tehran, Iran

Mostafa Goudarzi

Nuclear Science Research School, Nuclear Science & Technology Research Institute (NSTRI), Atomic Energy Organization of Iran, Tehran, Iran