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Related Experiment Video

Updated: Jun 23, 2025

Exosomal miRNA Analysis in Non-small Cell Lung Cancer NSCLC Patients' Plasma Through qPCR: A Feasible Liquid Biopsy Tool
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Nanoplasmonic Single-Tumoroid Microarray for Real-Time Secretion Analysis.

Yen-Cheng Liu1, Saeid Ansaryan1, Jiayi Tan1

  • 1Bionanophotonic Systems Laboratory, Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, 1015, Switzerland.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 26, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a label-free biosensor platform for real-time analysis of single tumoroids, enabling personalized cancer research by monitoring protein secretion and behavior.

Keywords:
microarraymicrofluidicsnanohole arraynanophotonicsnanoplasmonic biosensorprotein secretiontumoroids

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Area of Science:

  • Biomedical Engineering
  • Cancer Research
  • Nanotechnology

Background:

  • Organoid tumor models (tumoroids) are crucial for personalized cancer research due to their recapitulation of tumor characteristics.
  • Assessing functional behavior, especially protein secretion, is vital for understanding tumor biology.
  • Existing methods often lack the real-time, label-free capabilities needed for detailed tumoroid analysis.

Purpose of the Study:

  • To present a novel label-free spectroscopic imaging platform with an integrated optofluidic nanoplasmonic biosensor.
  • To enable real-time secretion analysis from single tumoroids.
  • To facilitate simultaneous observation of secretion dynamics, motility, and morphology.

Main Methods:

  • Development of a label-free spectroscopic imaging platform with an integrated optofluidic nanoplasmonic biosensor.
  • Utilizing a novel two-layer microwell design for isolating single tumoroids and a microarray for concurrent analysis.
  • Employing dual imaging: time-lapse plasmonic spectroscopy and bright-field microscopy.

Main Results:

  • Demonstrated real-time, label-free secretion analysis from single colorectal tumoroids.
  • Successfully monitored vascular endothelial growth factor A (VEGF-A) secretion, growth, and movement under various conditions (normoxia, hypoxia, drug treatment).
  • Enabled simultaneous observation of secretion dynamics, motility, and morphology.

Conclusions:

  • The presented platform offers a powerful tool for label-free, real-time monitoring of tumoroids.
  • This technology can significantly advance fundamental biological studies, drug screening, and personalized therapy development.
  • The integrated biosensor provides comprehensive insights into tumoroid behavior for personalized cancer research.