• Clin Med (Lond) · Oct 2017

    Molecular radiotheragnostics in thyroid disease.

    • Nitasha Singh and Val Lewington.
    • Brighton and Sussex University Hospitals NHS Trust, Brighton, UK Nitasha.Singh@bsuh.nhs.uk.
    • Clin Med (Lond). 2017 Oct 1; 17 (5): 453457453-457.

    AbstractMolecular radiotheragnostics directly links nuclear medicine diagnostic imaging to therapy. The imaging study is used to detect a specific molecular target associated with a disease process. A radiotherapeutic molecule with a similar biodistribution to the diagnostic agent can then be used to deliver targeted therapy.Molecular radiotheragnostics have been applied to manage both benign and malignant thyroid disease since the 1940s. The specific molecular pathway targeted is the sodium/iodide symporter (NIS) located on the basolateral membrane of the thyroid follicular cell. Radiolabelling of iodide or a similar ion allows targeting of the NIS system with radiopharmaceuticals for imaging (123I-radioiodine and 99mTc-pertechnetate) and treatment (131I-radioiodine) by virtue of their gamma ray and beta-particle emissions, respectively.Scintigraphic imaging directly guides 131I-radioiodine treatment planning to maximise therapeutic benefit while minimising adverse reactions, in a personalised medicine approach.© Royal College of Physicians 2017. All rights reserved.

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