Bombesin functionalized 64Cu-copper sulfide nanoparticles for targeted imaging of orthotopic prostate cancer

Huawei Cai, Fang Xie, Aditi Mulgaonkar, Lihong Chen, Xiankai Sun, Jer Tsong Hsieh, Fangyu Peng, Rong Tian, Lin Li, Changqiang Wu, Hua Ai

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Aim: To synthesize and evaluate the imaging potential of Bom-PEG-[64Cu]CuS nanoparticles (NPs) in orothotopic prostate tumor. Materials & methods: [64Cu]CuS NPs were synthesized in aqueous solution by 64CuCl2 and Na2S reaction. Then PEG linker with or without bombesin peptide were conjugated to the surface of [64Cu]CuS NPs to produce Bom-PEG-[64Cu]CuS and PEG-[64Cu]CuS NPs. These two kinds of NPs were used for testing specific uptake in prostate cancer cells in vitro and imaging of orthotopic prostate tumor in vivo. Results: Bom-PEG-[64Cu]CuS and PEG-[64Cu]CuS NPs were successfully synthesized with core diameter of approximately 5 nm. Radioactive cellular uptake revealed that Bom-PEG-[64Cu]CuS was able to specifically bind to prostate cancer cells, and the microPET-CT imaging indicated clear visualization of orthotopic prostate tumors. Conclusion: Radiolabeled Bom-PEG-[64Cu]CuS NPs have potential as an ideal agent for orthotopic prostate tumor imaging by microPET-CT.

Original languageEnglish (US)
JournalNanomedicine
Volume13
Issue number14
DOIs
StatePublished - 2018

Keywords

  • Bombesin
  • Cu-copper sulfide nanoparticles
  • Micro-PET-CT
  • Prostate cancer

ASJC Scopus subject areas

  • Bioengineering
  • Medicine (miscellaneous)
  • Biomedical Engineering
  • Materials Science(all)

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