Journal of Radioanalytical and Nuclear Chemistry

, Volume 322, Issue 2, pp 533–543 | Cite as

Development and initial characterization of 99mTc labeled N-acetyl neuraminic acid for its application in in-vivo imaging of cancer: a preclinical study

  • Ravi Ranjan Kumar
  • Devinder Kumar Dhawan
  • Vijayta Dani ChadhaEmail author


In the present study, N-acetyl neuraminic acid (Neu5Ac) was labeled with 99mTc and its bioevaluation was performed. Radiolabeling of Neu5Ac was obtained with a maximum labeling yield of 93.6% and was confirmed by instant thin layer chromatography, mass spectra (ESI-MS) and high performance liquid chromatography. The resulting radiocomplex showed hydrophilic properties and stability up to 8 h at room temperature in rat serum and saline. Biodistribution and scintigraphic studies exhibited accumulation of activity in the colon of tumor bearing rats. In conclusion, [99mTc]Tc-N-acetyl neuraminic acid exhibits selectivity for neoplastic colon tissue.


Sialic acid Radiolabeling Radionuclide imaging Biodistribution Technitium-99m Experimentally induced colon tumor 



The authors thank to post graduate institute of medical research (PGIMER), Chandigarh India, for providing radioisotope.


This work is supported by Research Promotion Fund, Panjab University Alumni Association and DST (PURSE), India.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Centre for Nuclear MedicinePanjab UniversityChandigarhIndia
  2. 2.Department of BiophysicsPanjab UniversityChandigarhIndia

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