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Updated: Jul 13, 2025
Manufacture and Drug Delivery Applications of Silk Nanoparticles
Published on: October 8, 2016
Principles of Nanoparticle Delivery to Solid Tumors
Warren C W Chan1,2,3
1Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada.
Abstract:
The effective treatment of patients with cancer hinges on the delivery of therapeutics to a tumor site. Nanoparticles provide an essential transport system. We present 5 principles to consider when designing nanoparticles for cancer targeting: (a) Nanoparticles acquire biological identity in vivo, (b) organs compete for nanoparticles in circulation, (c) nanoparticles must enter solid tumors to target tumor components, (d) nanoparticles must navigate the tumor microenvironment for cellular or organelle targeting, and (e) size, shape, surface chemistry, and other physicochemical properties of nanoparticles influence their transport process to the target. This review article describes these principles and their application for engineering nanoparticle delivery systems to carry therapeutics to tumors or other disease targets.
Insights
Designing effective cancer therapeutics requires careful consideration of nanoparticle delivery. Five key principles guide nanoparticle engineering for successful tumor targeting and drug delivery in vivo.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Cancer Therapeutics
Background:
- Effective cancer treatment relies on delivering therapeutics directly to tumor sites.
- Nanoparticles offer a promising platform for targeted drug delivery systems.
- Understanding nanoparticle behavior in vivo is crucial for therapeutic efficacy.
Purpose of the Study:
- To present five fundamental principles for designing nanoparticles for cancer targeting.
- To guide the engineering of nanoparticle delivery systems for improved therapeutic outcomes.
- To discuss the application of these principles in developing targeted drug delivery strategies.
Main Methods:
- Review of existing literature on nanoparticle-based drug delivery for cancer.
- Analysis of nanoparticle-environment interactions in vivo.
- Elucidation of physicochemical properties influencing nanoparticle transport and targeting.
Main Results:
- Nanoparticles acquire a biological identity in vivo, influencing their circulation and distribution.
- Organs compete for nanoparticles, affecting their availability for tumor targeting.
- Successful tumor targeting requires nanoparticles to penetrate solid tumors and navigate the tumor microenvironment.
- Physicochemical properties (size, shape, surface chemistry) critically impact nanoparticle transport and targeting efficiency.
Conclusions:
- Adherence to the five presented principles is essential for engineering effective nanoparticle delivery systems for cancer.
- Optimizing nanoparticle design based on these principles can enhance therapeutic delivery to tumors.
- These principles provide a framework for advancing nanoparticle-based cancer therapies.
