Radiolabelled aptamers for theranostic treatment of cancer

Khalid, Umair, Vi, Chris, Henri, Justin Liam, Macdonald, Joanna, Eu, Peter, Mandarano, Giovanni and Shigdar, Sarah 2019, Radiolabelled aptamers for theranostic treatment of cancer, Pharmaceuticals, vol. 12, no. 1, doi: 10.3390/ph12010002.

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Title Radiolabelled aptamers for theranostic treatment of cancer
Author(s) Khalid, Umair
Vi, Chris
Henri, Justin Liam
Macdonald, Joanna
Eu, Peter
Mandarano, GiovanniORCID iD for Mandarano, Giovanni
Shigdar, SarahORCID iD for Shigdar, Sarah
Journal name Pharmaceuticals
Volume number 12
Issue number 1
Article ID 2
Total pages 20
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2019
ISSN 1424-8247
Keyword(s) EpCAM
chelating agents
molecular imaging
targeted imaging
Summary Cancer has a high incidence and mortality rate worldwide, which continues to grow as millions of people are diagnosed annually. Metastatic disease caused by cancer is largely responsible for the mortality rates, thus early detection of metastatic tumours can improve prognosis. However, a large number of patients will also present with micrometastasis tumours which are often missed, as conventional medical imaging modalities are unable to detect micrometastases due to the lack of specificity and sensitivity. Recent advances in radiochemistry and the development of nucleic acid based targeting molecules, have led to the development of novel agents for use in cancer diagnostics. Monoclonal antibodies may also be used, however, they have inherent issues, such as toxicity, cost, unspecified binding and their clinical use can be controversial. Aptamers are a class of single-stranded RNA or DNA ligands with high specificity, binding affinity and selectivity for a target, which makes them promising for molecular biomarker imaging. Aptamers are presented as being a superior choice over antibodies because of high binding affinity and pH stability, amongst other factors. A number of aptamers directed to cancer cell markers (breast, lung, colon, glioblastoma, melanoma) have been radiolabelled and characterised to date. Further work is ongoing to develop these for clinical applications.
Language eng
DOI 10.3390/ph12010002
Field of Research 1115 Pharmacology and Pharmaceutical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, The Authors
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