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Updated: Jun 20, 2026

Radionuclide-fluorescence Reporter Gene Imaging to Track Tumor Progression in Rodent Tumor Models
Published on: March 13, 2018
Nuclear imaging of molecular processes in cancer
Rafael Torres Martin de Rosales1, Erik Arstad, Philip J Blower
1King's College London, Division of Imaging Sciences, Rayne Institute, St Thomas' Hospital, 4th Floor Lambeth Wing, London, SE1 7EH, UK.
Abstract:
Molecular imaging using radionuclides has brought about the possibility to image a wide range of molecular processes using radiotracers injected into the body at very low concentrations that should not perturb the processes being studied. Examples include specific peptide receptor expression, angiogenesis, multi drug resistance, hypoxia, glucose metabolism, and many others. This article presents an overview, aimed at the non-specialist in imaging, of the radionuclide imaging technologies positron emission tomography and single photon radionuclide imaging, and some of the molecules labeled with gamma- and positron-emitting radioisotopes that have been, or are being, developed for research and clinical applications in cancer.
Insights
Molecular imaging with radionuclides allows visualization of biological processes using radiotracers. This overview covers positron emission tomography and single photon radionuclide imaging for cancer research and clinical applications.
Area of Science:
- * Nuclear medicine and molecular imaging.
- * Biomedical research and diagnostics.
Background:
- * Molecular imaging enables visualization of molecular processes in vivo.
- * Radiotracers, at low concentrations, image specific targets without perturbing biological functions.
- * Applications include imaging peptide receptors, angiogenesis, drug resistance, hypoxia, and metabolism.
Purpose of the Study:
- * To provide a non-specialist overview of radionuclide imaging technologies.
- * To discuss positron emission tomography (PET) and single photon radionuclide imaging (SPRI).
- * To highlight radiolabeled molecules for cancer research and clinical use.
Main Methods:
- * Review of positron emission tomography (PET) principles.
- * Review of single photon radionuclide imaging (SPRI) principles.
- * Discussion of radiolabeled molecules and their applications in cancer.
Main Results:
- * PET and SPRI are key radionuclide imaging modalities.
- * Various molecular targets in cancer can be imaged using radiotracers.
- * Development of novel radiotracers is ongoing for research and clinical applications.
Conclusions:
- * Radionuclide imaging offers powerful tools for molecular process visualization.
- * PET and SPRI are crucial for advancing cancer research and patient care.
- * Continued development of radiotracers will expand molecular imaging applications in oncology.
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