Smart magnetic resonance imaging-based theranostics for cancer

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Smart theranostics integrate imaging, therapy, and responsiveness in single agents.
• Magnetic resonance imaging (MRI) is a preferred non-invasive imaging modality in clinics.
• Current research focuses on enhancing cancer therapy and diagnostic efficiency.

Purpose of the Study:

• To review novel responsive theranostic agents for MRI-based cancer applications.
• To explore agents responding to endogenous or exogenous stimuli.
• To discuss challenges and future directions in responsive theranostic development.

Main Methods:

• Review of small-molecule and nanosized MRI theranostic agents.
• Analysis of agents responsive to endogenous stimuli (pH, redox, enzymes).
• Analysis of agents responsive to exogenous stimuli (temperature, ultrasound, light).

Main Results:

• Development of diverse MRI smart theranostic designs.
• Agents demonstrate responsiveness to various internal and external triggers.
• Strategies aim to increase local therapeutic effector concentration and MRI signal intensity in tumors.

Conclusions:

• Responsive theranostics offer potential for improved cancer diagnosis and treatment.
• Further research is needed to overcome design and in vivo application challenges.
• Future efforts should focus on creating controllable, efficient, and diagnostically relevant smart theranostics.