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Development and Testing of a 212Pb/212Bi Peptide for Targeting Metastatic Melanoma (Final Report)

Technical Report ·
DOI:https://doi.org/10.2172/1054055· OSTI ID:1054055
 [1]
  1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
The purpose of this project is to develop a new radiolabeled peptide for imaging and treating metastatic melanoma. The immunoconjugate consists of a receptor-specific peptide that targets melanoma cells. The beta-emitter lead-212 (half-life = 10.4 hours) is linked by coordination chemistry to the peptide. After injection, the peptide targets melanoma receptors on the surfaces of melanoma cells. Lead-212 decays to the alpha-emitter bismuth-212 (half-life = 60 minutes). Alpha-particles that hit melanoma cell nuclei are likely to kill the melanoma cell. For cancer cell imaging, the lead-212 is replaced by lead-203 (half-life = 52 hours). Lead-203 emits 279 keV photons (80.1% abundance) that can be imaged and measured for biodistribution analysis, cancer imaging, and quantitative dosimetry.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); V.G. Khlopin Radium Institute, St. Petersburg (Russia Federation); AlphaMed, Inc., Acton, MA (United States); AlphaMed, Inc., Victoria, BC (Canada); Univ. of Missouri, Columbia, MO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830;
OSTI ID:
1054055
Report Number(s):
PNNL--21943; NN4010021
Country of Publication:
United States
Language:
English