Assessing responses to cancer therapy using molecular imaging

Area of Science:

• Oncology
• Medical Imaging
• Molecular Biology

Background:

• Clinical evaluation of cancer therapy response primarily uses tumor size reduction via non-invasive imaging.
• This traditional method lacks sensitivity and provides only delayed indicators of treatment efficacy.
• Advances in molecular understanding and targeted imaging technologies are poised to transform cancer detection and treatment.

Purpose of the Study:

• To review current and emerging molecular imaging technologies for assessing tumor characteristics.
• To demonstrate how these technologies can provide early indications of treatment response or detect resistance and recurrence.
• To highlight clinically relevant applications and those nearing translation for improved cancer management.

Main Methods:

• Review of advanced imaging technologies targeting molecular aspects of cancer.
• Discussion of imaging modalities for proliferation, migration, metabolism, gene expression, apoptosis, angiogenesis, and vascular function.
• Emphasis on clinical and preclinical applications facilitating new treatment translation.

Main Results:

• Molecular imaging offers sensitive and early detection of treatment response compared to size-based methods.
• These technologies can identify drug resistance and predict disease recurrence.
• Specific applications are already in clinical use or have high potential for near-term translation.

Conclusions:

• Molecular imaging represents a paradigm shift in evaluating cancer treatment efficacy.
• Early detection of response and resistance through molecular imaging enhances personalized cancer therapy.
• Continued development and clinical integration of these technologies promise improved patient outcomes.