Abstract
Peptide nucleic acids (PNAs) have very attractive properties for applications in nuclear medicine. Because PNAs have high selectivity for DNA/RNA recognition, resistance to nuclease/protease degradation, and high thermal and radiolytic stabilities, PNA bioconjugates could transform the areas of diagnostic and therapeutic nuclear medicine. In this book chapter, we report on the current developments towards the preparation of radiometal-containing PNA constructs and summarize the protocols for labeling these probes with 99mTc, 111In, 64Cu, 90Y, and 177Lu.
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Abbreviations
- A:
-
Adenine
- Ac-GdAGG:
-
TetrapeptideN-acetyl-glycine-d-alanine-glycine-glycine
- BFCA:
-
Bifunctional chelating agent
- Bhoc:
-
Benzhydryloxycarbonyl
- Bipy:
-
2,2′-bipyridine
- Boc:
-
Di-tert-butyl dicarbonate
- C:
-
Cytosine
- Cbz:
-
Benzyloxycarbonyl
- DIPEA:
-
Diisopropylethylamine
- DMF:
-
Dimethylformamide
- DOTA:
-
1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid
- Dpa-N3:
-
2-azido-N,N-bis((pyridin-2-yl)methyl)ethanamine
- DPA:
-
N,N-bis(2-picolyl)amine
- DPAm:
-
N,N-bis(2-picolyl)amide
- DTPA:
-
Diethylenetriaminepentaacetic acid
- EDTA:
-
Ethylenediaminetetraacetic acid
- Fmoc:
-
9-fluorenylmethyloxycarbonyl
- G:
-
Guanine
- GdAGG:
-
Tetrapeptide glycine-d-alanine-glycine-glycine
- HATU:
-
2-(1H-7-azabenzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluoro-phosphate
- HCl:
-
Hydrochloric acid
- HEPES:
-
2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid
- HPLC:
-
High-performance liquid chromatography
- ITLC:
-
Instant thin-layer chromatography
- MAG3 :
-
S-acetylmercaptoacetyltriglycine
- MAS3 :
-
S-acetylmercaptoacetyltriserine
- PET:
-
Positron emission tomography
- PBS:
-
Phosphate-buffered saline
- PNA:
-
Peptide nucleic acid
- PzDA:
-
N-(1-pyrazolyl)ethyl-ethane-1,2-diamine
- SBTG2DAP:
-
N,N′-bis(S-benzoyl-thioglycoloyl)diaminopropanoate
- SEC:
-
Size-exclusion chromatography
- SPECT:
-
Single-photon emission computed tomography
- T:
-
Thymine
- TETA:
-
1,4,8,11-tetraazacyclotetradecane1,4,8,11-tetraacetic acid
- TFA:
-
Trifluoroacetic acid
- TIS:
-
Triisopropylsilane
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Acknowledgments
The Institute of Radiopharmautical Cancer Research at the Helmholtz-Zentrum Dresden-Rossendorf, the Swiss National Science Foundation (Professorship N° PP00P2_133568 and Research Grant N° 200021_129910 to G.G.), and the University of Zurich are gratefully acknowledged for their generous financial support. The authors thank Prof. Nils Metzler-Nolte, Prof. Jörg Steinbach, Dr. Hans-Jürgen Pietzsch, Dr. Ralf Bergmann, and Dr. Tanmaya Joshi for helpful discussions.
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Stephan, H., Foerster, C., Gasser, G. (2014). Synthesis, Characterization, and Evaluation of Radiometal-Containing Peptide Nucleic Acids. In: Nielsen, P., Appella, D. (eds) Peptide Nucleic Acids. Methods in Molecular Biology, vol 1050. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-553-8_4
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DOI: https://doi.org/10.1007/978-1-62703-553-8_4
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