Defining a future role for radiogenic therapy.

Area of Science:

• Oncology
• Radiation Oncology
• Molecular Therapy

Background:

• Cancer therapy aims to eradicate tumors while minimizing damage to normal tissues, thereby improving the therapeutic ratio.
• Conventional treatments often face challenges in selectively targeting cancer cells and managing side effects.
• Novel therapeutic strategies are needed to enhance treatment efficacy and patient outcomes.

Purpose of the Study:

• To review a novel class of therapeutics termed 'radiogenic therapy'.
• To categorize radiogenic therapies based on their mechanisms of radiation-inducible action.
• To highlight the potential of these therapies in improving cancer treatment outcomes.

Main Methods:

• Review of existing literature on radiation-inducible gene expression and targeted radionuclide therapy.
• Categorization of radiogenic therapies into three main groups based on their mode of action.
• Analysis of the mechanisms by which radiation stimulates or is utilized by these therapeutic agents.

Main Results:

• Radiogenic therapies encompass agents directly activated by radiation, radiolabeled molecules targeting internalized cancer cells, and radiation-inducible genes that facilitate targeted delivery of cytotoxic agents.
• These therapies leverage radiation-inducible promoters to control the expression of cytotoxic proteins or prodrug-converting enzymes.
• Internalized Auger-electron emitting agents and radiation-inducible gene products for targeted delivery represent distinct but complementary approaches.

Conclusions:

• Radiogenic therapy represents a promising strategy for enhancing cancer treatment by harnessing radiation's dual role in both targeting and activation.
• The diverse mechanisms within radiogenic therapy offer flexibility in designing targeted and effective cancer treatments.
• Further research and development in radiogenic therapy hold significant potential for improving the therapeutic ratio in oncology.