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A Nano-Electro-Platform Enabling Evolutionary Screening and Remodeling of Tumor Cells for Metastasis Inhibition
Feng Liu1,2,3, Hong Sun4, Bing Liu5
1School of Engineering Medicine, Beihang University, Beijing, 100191, China.
Abstract:
Tumor metastasis remains the leading cause of mortality among cancer patients. Addressing this challenge necessitates the development of effective strategies for targeted drug delivery and therapy. Given that metastatic lesions are primarily driven by highly aggressive tumor cell subpopulations, in-depth study of these cells and further guiding design of targeted therapeutics, play deterministic roles in metastasis inhibition. Herein, a nano-electro-platform is shown that enables non-invasive screening of aggressive cell subpopulations from heterogeneous tumor samples. Single-cell sequencing further reveals immune evasion pathways associated with their aggressive behavior. Targeting the screened aggressive cells, the platform implements a unique nanopore-focused electric field, which genetically remodels the cells to generate extracellular vesicles (EVs) with significantly enhanced tumor-targeting and therapeutic capabilities. The engineered EVs effectively activate macrophages and T cells, leading to robust tumor cell elimination and metastasis inhibition in lung cancer metastasis models. These highlight a versatile, multidisciplinary technique adopting a new path toward deep understanding and treating metastasis.
Insights
This study introduces a nano-electro-platform for identifying aggressive tumor cells and engineering extracellular vesicles (EVs) to target cancer metastasis. These EVs enhance immune response, leading to tumor cell elimination and metastasis inhibition.
Area of Science:
- Oncology
- Nanotechnology
- Immunotherapy
Background:
- Tumor metastasis is a primary cause of cancer mortality.
- Targeted therapies are crucial for inhibiting metastasis.
- Aggressive tumor cell subpopulations drive metastatic progression.
Purpose of the Study:
- To develop a method for non-invasively screening aggressive tumor cell subpopulations.
- To engineer extracellular vesicles (EVs) for targeted cancer therapy.
- To investigate the therapeutic potential of engineered EVs in metastasis models.
Main Methods:
- A nano-electro-platform for non-invasive screening of aggressive tumor cells.
- Single-cell sequencing to identify immune evasion pathways.
- Nanopore-focused electric field for genetic cell remodeling to produce EVs.
- In vivo lung cancer metastasis models to evaluate therapeutic efficacy.
Main Results:
- The platform successfully screened aggressive tumor cell subpopulations.
- Engineered EVs demonstrated enhanced tumor-targeting and therapeutic capabilities.
- EVs activated macrophages and T cells, leading to tumor cell elimination and metastasis inhibition.
- Significant inhibition of lung cancer metastasis was observed.
Conclusions:
- The developed nano-electro-platform offers a novel approach for understanding and targeting tumor metastasis.
- Engineered EVs represent a promising therapeutic strategy for cancer treatment.
- This multidisciplinary technique provides a new avenue for combating metastasis.
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