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A Spheroid Killing Assay by CAR T Cells
Published on: December 12, 2018
Targeting active cancer cells with smart bullets
1NanoRobotics Laboratory, Department of Computer & Software Engineering, Institute of Biomedical Engineering, Polytechnique Montréal, Montréal, QC, Canada.
Abstract:
Paul Ehrlich's 'magic bullet' concept has stimulated research for therapeutic agents with the capability to go straight to their intended targets. The 'magic bullet' concept is still considered the ultimate approach to maximize the therapeutic effects of a given therapeutic agent without affecting nontargeted tissues. But so far, there has never been a therapeutic agent or a delivery system that goes straight to the target in the body, and no approach has provided anything better than just a few percents of the total administered dose reaching the intended target sites. But engineering principles can transform systematically circulating vectors that so far were based primarily on physical characteristics and biochemical principles alone, as smart therapeutic agents with the required propulsion-navigation-homing capabilities to enable them to go straight to their intended targets.
Insights
Researchers aim to achieve Paul Ehrlich's "magic bullet" concept for targeted drug delivery. Engineering principles may enable smart therapeutic agents with propulsion, navigation, and homing capabilities for precise delivery.
Area of Science:
- Biomedical Engineering
- Pharmacology
- Drug Delivery Systems
Background:
- The "magic bullet" concept, proposed by Paul Ehrlich, seeks targeted therapeutic agents to maximize efficacy and minimize off-target effects.
- Current drug delivery methods achieve only a few percent of the administered dose at the intended target sites.
- Existing delivery systems primarily rely on physical and biochemical properties, lacking precise targeting capabilities.
Purpose of the Study:
- To explore the application of engineering principles to develop advanced therapeutic delivery systems.
- To conceptualize smart therapeutic agents with integrated propulsion, navigation, and homing functionalities.
- To overcome the limitations of current drug delivery systems in achieving precise in-vivo targeting.
Main Methods:
- Applying engineering principles to systematically circulating vectors.
- Designing vectors with propulsion capabilities for directed movement.
- Integrating navigation and homing mechanisms for target specificity.
Main Results:
- Conceptualization of smart therapeutic agents capable of directed movement within the body.
- Potential for enhanced drug delivery efficiency through engineered vectors.
- Overcoming the limitations of passive targeting in current therapeutic strategies.
Conclusions:
- Engineering principles offer a transformative approach to therapeutic delivery.
- Smart therapeutic agents with propulsion-navigation-homing capabilities are feasible.
- This approach promises to realize the long-sought "magic bullet" for precise in-vivo drug targeting.
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