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Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

Published on: August 18, 2023

Breast cancer diagnostics using microfluidic multiplexed immunohistochemistry.

Minseok S Kim¹, Seyong Kwon, Je-Kyun Park

¹Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Yuseong-gu, Daejeon, Republic of Korea.

Methods in Molecular Biology (Clifton, N.J.)

|January 19, 2013

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A novel microfluidic multiplexed immunohistochemistry (MMIHC) device enables fast, quantitative, and reproducible breast cancer diagnosis. This system enhances drug screening and personalized medicine by precisely analyzing biomarkers.

Area of Science:

Biomedical Engineering
Pathology
Oncology

Background:

Conventional immunohistochemistry (IHC) is time-consuming and labor-intensive.
Automated IHC and sequential multiplexed IHC methods have advanced diagnostic capabilities.
There is a need for faster, more reproducible, and cost-effective multiplexed IHC systems.

Purpose of the Study:

To develop a novel parallel multiplexed IHC method using a microfluidic device for quantitative pathological diagnosis of breast cancer.
To create a robust microfluidic multiplexed immunohistochemistry (MMIHC) device with precise fluidic control.
To enable the application of conventional thin-section tissues in on-chip systems without modification.

Main Methods:

Fabrication of a robust microfluidic multiplexed immunohistochemistry (MMIHC) device.

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Development of a tissue slide-compatible assembler for optimal integration.

Implementation of accurate fluidic control to prevent leakage, bubbles, and cross-contamination.

Main Results:

Demonstrated perfect fluid control within the MMIHC device.
Achieved quantitative and reproducible multiplexed IHC analysis.
Validated the system's efficiency for analyzing multiple biomarkers in breast cancer tissues.

Conclusions:

The developed MMIHC protocol offers a quantitative and reproducible method for pathological diagnosis.
This technology can significantly aid in drug screening and the advancement of personalized medicine.
MMIHC provides precise histopathological diagnosis for tailored cancer treatments.