Radiolabeled imaging probes targeting angiogenesis for personalized medicine

Samantha Y A Terry, Mark Rijpkema, Keelara Abiraj

  • 1Department of Nuclear Medicine, Radboud University Medical Centre Nijmegen, PO Box 9101, 6500 HB Nijmegen, The Netherlands. s.terry@nucmed.umcn.nl.

Insights

Nuclear imaging with radiolabeled probes can identify patients who will respond to anti-angiogenic therapy. This approach helps understand drug mechanisms and resistance, personalizing cancer treatment.

Area of Science:

  • Oncology
  • Molecular Imaging
  • Biomarker Development

Background:

  • Angiogenesis is crucial for tumor growth, making anti-angiogenic therapy a key strategy in oncology.
  • Mechanisms of anti-angiogenic drug action and resistance are not fully understood.
  • Lack of biomarkers hinders patient selection for anti-angiogenic treatments.

Purpose of the Study:

  • To review the development of radiolabeled probes for imaging key angiogenesis proteins.
  • To explore the use of these probes in personalizing anti-angiogenic therapy.
  • To elucidate drug mechanisms and resistance pathways non-invasively.

Main Methods:

  • Development of radiolabeled probes targeting vascular endothelial growth factor (VEGF) and its receptor.
  • Imaging integrin αvβ3, fibronectin, and matrix metalloproteases using nuclear imaging techniques.
  • Quantification of target expression for patient stratification and treatment monitoring.

Main Results:

  • Radiolabeled probes enable non-invasive imaging of angiogenesis markers.
  • Imaging can reveal mechanisms of drug response and resistance.
  • Personalized anti-angiogenic therapy can be facilitated through target expression quantification.

Conclusions:

  • Non-invasive nuclear imaging offers a promising approach for personalized anti-angiogenic therapy.
  • Radiolabeled probes can guide treatment decisions by assessing target engagement.
  • Further development and validation of these probes are essential for clinical application.

Related Concept Videos

Labeling DNA Probes03:31

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
In-situ Hybridization02:31

In-situ Hybridization

In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...