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Related Experiment Video

Updated: Feb 10, 2026

Microfluidic Device for Recreating a Tumor Microenvironment in Vitro

Microfluidic Device for Recreating a Tumor Microenvironment in Vitro

Published on: November 20, 2011

Normalizing Tumor Microenvironment Based on Photosynthetic Abiotic/Biotic Nanoparticles.

Diwei Zheng¹, Bin Li¹, Lu Xu¹

¹Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry , Wuhan University , Wuhan 430072 , People's Republic of China.

|May 24, 2018

Summary

This study introduces a novel nano-thylakoid system (PLANT) that generates oxygen within tumors. PLANT normalizes the tumor microenvironment, enhancing cancer therapies like phototherapy and antiangiogenesis.

Keywords:

cancer therapy oxygenation photocatalyst thylakoid tumor microenvironment

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Area of Science:

Biomedical Engineering
Cancer Research
Nanotechnology

Background:

Tumor hypoxia is a critical hallmark of cancer, negatively impacting treatment efficacy.
Reversing tumor hypoxia presents a promising strategy for novel anticancer therapies.

Purpose of the Study:

To design and evaluate a photosynthetic leaf-inspired abiotic/biotic nano-thylakoid (PLANT) system for in vivo oxygen generation.
To investigate the potential of PLANT in normalizing the tumor microenvironment and enhancing therapeutic outcomes.

Main Methods:

Development of the PLANT system by fusing thylakoid membranes with synthetic nanoparticles.
In vitro assessment of intracellular oxygen generation and suppression of anaerobic respiration in multicellular tumor spheroids under laser irradiation.
In vivo evaluation of PLANT's effects on tumor metabolism, vasculature, and therapeutic efficacy.

Main Results:

PLANT system demonstrated efficient intracellular oxygen generation upon 660 nm laser irradiation.
PLANT suppressed anaerobic respiration in tumor spheroids.
In vivo studies showed PLANT normalized tumor metabolic networks and vasculature, significantly improving phototherapy and antiangiogenesis efficacy.

Conclusions:

The developed PLANT system effectively generates oxygen in hypoxic tumors, normalizing the tumor microenvironment.
PLANT shows significant potential as an adjunct therapy to enhance current cancer treatments like phototherapy and antiangiogenesis.
This approach offers a facile strategy for improving tumor therapy by targeting the tumor microenvironment.