Imaging the DNA damage response with PET and SPECT

Area of Science:

• Molecular Biology
• Oncology
• Radiochemistry

Background:

• DNA integrity is vital and constantly threatened by endogenous and exogenous factors.
• Unrepaired DNA damage can lead to mutagenesis, aberrant transcription, cytotoxicity, and cancer development.
• The DNA damage response (DDR) encompasses complex mechanisms to detect and repair DNA damage.

Purpose of the Study:

• To review recent advancements in developing PET and SPECT radiotracers.
• To explore the potential of molecular imaging for visualizing DNA damage repair proteins.
• To highlight the role of DDR imaging in cancer detection and therapy monitoring.

Main Methods:

• Review of current literature on PET and SPECT radiotracer development for DDR proteins.
• Analysis of the molecular targets within DNA repair pathways suitable for imaging.
• Discussion of the application of nuclear imaging techniques in oncology.

Main Results:

• Specific DNA repair proteins are upregulated or activated during DDR, making them potential imaging targets.
• Development of novel PET and SPECT radiotracers is progressing for visualizing DDR processes.
• Non-invasive imaging of DDR could aid in early cancer diagnosis and treatment response assessment.

Conclusions:

• Monitoring DNA damage repair processes via molecular imaging offers a promising avenue for cancer management.
• PET and SPECT imaging of DDR proteins can facilitate earlier cancer detection.
• These imaging techniques may also provide valuable insights into patient response to DNA-damaging cancer therapies.