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Updated: Sep 18, 2025

Quantitative Immunohistochemistry of the Cellular Microenvironment in Patient Glioblastoma Resections
Published on: July 31, 2017
Unmasking Stemness and Immune Cell Markers in Brain Tumors with Immunohistochemistry
Jack Q Lu1,2, Kui Zhai1,3, Agata M Kieliszek1,3
1Centre for Discovery in Cancer Research, McMaster University, Hamilton, ON, Canada.
Insights
This study details a precise immunohistochemistry (IHC) protocol for identifying stem-like and immune cells in brain tumors. The method uses specific stains for clear visualization and accurate cell selection in tissue samples.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Immunohistochemistry (IHC) is crucial for detecting specific proteins in tissues.
- Effective visualization of cellular markers aids in understanding tissue composition.
- Brain tumor research requires precise methods for identifying critical cell populations.
Purpose of the Study:
- To present a detailed immunohistochemistry protocol.
- To enable positive selection of stem-like cells and immune cells.
- To enhance visualization and evaluation of specific molecules in brain tumor tissues.
Main Methods:
- Developed a comprehensive immunohistochemistry protocol.
- Incorporated strategic use of chromogens and counterstains.
- Applied the protocol to brain tumor tissue samples.
Main Results:
- Achieved high specificity and clarity in protein detection.
- Enabled contrast-rich evaluation of targeted molecules, including surface markers.
- Successfully visualized stem-like and immune cells within the brain tumor microenvironment.
Conclusions:
- The outlined IHC protocol is effective for identifying key cell types in brain tumors.
- This method facilitates accurate analysis and selection of specific cell populations.
- The protocol enhances the study of brain tumor biology and potential therapeutic targets.
Abstract:
Immunohistochemistry (IHC) is a useful method to detect and visualize targeted proteins in tissues, with a high degree of specificity and clarity. Through the strategic use of chromogens and counterstains, it enables a contrast-rich and accurate evaluation of specific molecules, such as surface markers. Here, we outline a comprehensive IHC followed with counterstaining protocol for the positive selection of stem-like cells and immune cells in brain tumor tissue.

