[Research Progress on the Influence of Tumor Extracellular Matrix Mechanic Properties on Nanodrug Delivery]
Related Experiment Video
Updated: Jul 4, 2025
Longitudinal Measurement of Extracellular Matrix Rigidity in 3D Tumor Models Using Particle-tracking Microrheology
Published on: June 10, 2014
Tian Zhao1, Hao Wu1, Shihuan Chen1
1（ 610054） School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
Abstract:
Nanodrugs are widely utilized in the biomedical fields, exhibiting immense potential in cancer therapy in particular. However, tumors exist in an extremely complicated microenvironment where substances like collagen are continuously deposited and remodeled, leading to significant alterations in the mechanical properties of the extracellular matrix (ECM) during tumor development. Previous research has primarily focused on the specific physicochemical properties of nanodrugs, such as particle size, electric charge, shape, surface chemistry, etc., and their effects on cellular uptake, cytotoxicity, and in vivo pharmacokinetics. Limited studies have been done to explore the impact of ECM mechanical properties on nanodrug delivery. In this review, we systematically summarized the relevant research findings on this topic from the perspective of the characteristics and testing methods of tumor ECM mechanics. Additionally, we made a thorough discussion of the potential mechanical and biological mechanisms involved in nanodrug delivery. We proposed several noteworthy research directions. Regarding the overall strategy, there is a need to emphasize targeted delivery that combines ECM mechanics and nanomechanics to achieve precise drug delivery. Regarding the spatial aspect, attention should be given to the nonlinear spatial mechanical heterogeneity within the interior of solid tumors and the construction of mechanic microenvironment-adaptive nanocarriers to improve the delivery efficiency. Regarding the temporal aspect, emphasis should be placed on the dynamic development and changes in the mechanical microenvironment during solid tumor growth and treatment processes. Based on the stromal mechanical characteristics of the tumor tissues of individual patients, personalized treatment strategies can be formulated, which will enhance treatment specificity and efficacy. In addition, issues such as mechanically targeted nanodrug delivery, degradation, and metabolism under dynamic ECM mechanical conditions warrant further investigation.
Insights
Tumor extracellular matrix (ECM) mechanics significantly impact nanodrug delivery for cancer therapy. Future strategies must integrate nanomechanics and ECM properties for precise, personalized treatments.
Area of Science:
- Biomedical Engineering
- Cancer Therapy
- Nanotechnology
Background:
- Nanodrugs show promise in cancer therapy, but their effectiveness is hindered by the complex tumor microenvironment.
- Tumor extracellular matrix (ECM) mechanical properties change during tumor development, affecting nanodrug delivery.
- Existing research on nanodrugs mainly focuses on physicochemical properties, neglecting ECM's mechanical influence.
Approach:
- This review systematically summarizes research on tumor ECM mechanics and its impact on nanodrug delivery.
- It explores the characteristics and testing methods of tumor ECM mechanics.
- Potential mechanical and biological mechanisms governing nanodrug delivery within the tumor microenvironment are discussed.
Key Points:
- Nanodrug delivery strategies need to combine ECM and nanomechanics for precise targeting.
- Addressing spatial mechanical heterogeneity within tumors and developing adaptive nanocarriers are crucial for improved delivery.
- Temporal dynamics of ECM mechanical changes during tumor growth and treatment require consideration for effective therapy.
Conclusions:
- Personalized cancer treatment strategies can be developed by analyzing patient-specific stromal mechanical characteristics.
- Further investigation into mechanically targeted nanodrug delivery, degradation, and metabolism under dynamic ECM conditions is warranted.
