Development of radiogallium–ethylenecysteamine cysteine complex as a possible renal imaging agent

  • Amir Reza Jalilian
  • Hassan Yousefnia
  • Samaneh Zolghadri
  • Mohammad Reza Khoshdel
  • Fatemeh Bolourinovin
  • Ali Rahiminejad


[67Ga]-ethylenecysteamine cysteine ([67Ga]ECC) was prepared using freshly prepared [67Ga]GaCl3 and ethylenecysteamine cysteine (ECC) for 30 min at 90 °C (radiochemical purity ≈97 ± 0.88% ITLC, specific activity: 210 ± 5 GBq/mM). Stability of the complex was checked in human serum for 24 h at 37 °C. Partition co-efficient of the tracer in octanol:saline mixture was determined (log P; 0.8). The biodistribution of the radiolabeled compound in vital organs of wild-type rats were compared with that of free Ga3+ cation up to 48 h. Initial biodistribution results showed significant kidney excretion of the tracer comparable to that of homologous 99mTc compound.


67Ga-complexation Ethylenecysteamine cysteine Biodistribution Renal agent 



Authors wish to thank Ms S. Moradkhani and Mr S. Daneshvari for conducting animal studies.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  • Amir Reza Jalilian
    • 1
  • Hassan Yousefnia
    • 1
  • Samaneh Zolghadri
    • 1
  • Mohammad Reza Khoshdel
    • 2
  • Fatemeh Bolourinovin
    • 2
  • Ali Rahiminejad
    • 2
  1. 1.Radiopharmaceutical Research and Development Lab (RRDL)Nuclear Science and Technology Research Institute (NSTRI)TehranIran
  2. 2.Agricultural, Medical and Industrial Research School (AMIRS)Nuclear Science and Technology Research Institute (NSTRI)KarajIran

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