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The Tumor Microenvironment

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...

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Updated: Oct 2, 2025

Quantitative Immunohistochemistry of the Cellular Microenvironment in Patient Glioblastoma Resections

Quantitative Immunohistochemistry of the Cellular Microenvironment in Patient Glioblastoma Resections

Published on: July 31, 2017

Glioblastoma Microenvironment and Cellular Interactions.

Carmen-Bianca Crivii¹, Adina Bianca Boșca², Carmen Stanca Melincovici²

¹Anatomy and Embryology Discipline, Morphological Sciences Department, Iuliu Hațieganu University of Medicine and Pharmacy, 400000 Cluj-Napoca, Romania.

|February 25, 2022

Summary

Glioblastoma (GB), a lethal brain tumor, thrives by interacting with its microenvironment. Understanding these cell-cell interactions is key to overcoming treatment resistance and developing more effective therapies.

Keywords:

cellular interactions glioblastoma microenvironment

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Last Updated: Oct 2, 2025

Quantitative Immunohistochemistry of the Cellular Microenvironment in Patient Glioblastoma Resections

Quantitative Immunohistochemistry of the Cellular Microenvironment in Patient Glioblastoma Resections

Published on: July 31, 2017

Co-culture of Glioblastoma Stem-like Cells on Patterned Neurons to Study Migration and Cellular Interactions

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Published on: February 24, 2021

Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells

Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells

Published on: November 28, 2015

Area of Science:

Neuro-oncology
Cancer Biology
Cellular Interactions

Background:

Glioblastoma (GB) is the most lethal brain tumor, originating from glial cells within the central nervous system (CNS).
GB development involves infiltration into healthy tissue, creating a complex tumor microenvironment (TME).
The TME comprises tumor cells and various non-tumor cells, including neural, stem, fibroblast, vascular, and immune cells.

Purpose of the Study:

To investigate the intricate cell-cell interactions within the glioblastoma microenvironment.
To understand how these interactions contribute to tumor progression and treatment resistance.
To identify potential therapeutic targets based on a deeper understanding of the TME.

Main Methods:

Review of existing literature on glioblastoma pathology and TME composition.
Analysis of cell-cell communication pathways between glioma cells and non-tumorigenic cells.
Exploration of the impact of the TME on tumor cell biology and treatment response.

Main Results:

Glioma cells interact extensively with non-tumor cells in the TME, modulating tumor behavior.
The TME enhances tumor evasion capacity, leading to increased resistance to therapies.
Crosstalk between glioma cells and the microenvironment inhibits beneficial molecular pathways, promoting tumor invasion and development.

Conclusions:

The glioblastoma microenvironment plays a critical role in treatment failure.
Targeting cell-cell interactions within the TME offers a promising strategy for novel glioblastoma therapies.
Further research into TME dynamics is essential for advancing glioblastoma treatment efficacy.