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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...

Fibril-associated Collagen

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Collagens are the Major Structural Proteins of ECM

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Type IV collagen is a 400 nm long, network-forming collagen that acts as a barrier between the epithelial and endothelial cells. Type IV collagen forms the backbone of the basement membrane by scaffolding with laminin, entactin, proteoglycans, and fibronectin. Apart from rendering structural support to the basement membrane, it also helps entail signaling potentials necessary for both pathological and physiological functions.
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Related Experiment Video

Updated: Feb 7, 2026

Three-Dimensional In Vitro Biomimetic Model of Neuroblastoma Using Collagen-Based Scaffolds

Three-Dimensional In Vitro Biomimetic Model of Neuroblastoma Using Collagen-Based Scaffolds

Published on: July 9, 2021

Biomimetic tumor microenvironments based on collagen matrices.

Jiranuwat Sapudom¹, Tilo Pompe

¹Biophysical Chemistry Group, Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Leipzig 04103, Germany. tilo.pompe@uni-leipzig.de.

Biomaterials Science

|July 13, 2018

Summary

The extracellular matrix (ECM) is crucial for tumor cell behavior and metastasis. Bioengineered 3D models using natural biopolymers can mimic in vivo environments for in vitro tumor studies.

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MAME Models for 4D Live-cell Imaging of Tumor: Microenvironment Interactions that Impact Malignant Progression

MAME Models for 4D Live-cell Imaging of Tumor: Microenvironment Interactions that Impact Malignant Progression

Published on: February 17, 2012

Area of Science:

Biomaterials Science
Cancer Biology
Tissue Engineering

Background:

The extracellular matrix (ECM) provides structural support and regulates cell functions, significantly impacting tumor microenvironments.
Tumor progression, invasion, survival, and therapeutic response are influenced by ECM composition and cell-ECM interactions.
Understanding these interactions requires in vitro models that accurately mimic the in vivo tumor microenvironment.

Purpose of the Study:

To review bioengineering techniques for creating biomimetic 3D matrices for studying tumor cell behavior.
To focus on naturally derived biopolymers for constructing these advanced in vitro models.
To enable high-resolution analysis of molecular mechanisms governing cell-microenvironment interactions in cancer.

Main Methods:

Review of current bioengineering strategies for 3D matrix construction.
Emphasis on naturally derived biopolymers (e.g., collagen, hyaluronic acid, fibrin).
Application of advanced analytical technologies in controlled in vitro settings.

Main Results:

Defined biomimetic 3D matrices can closely replicate in vivo-like microenvironments.
Naturally derived biopolymers offer versatile platforms for engineering these matrices.
These models facilitate detailed investigation of tumor cell responses to microenvironmental cues.

Conclusions:

Engineered 3D ECM models are essential for elucidating tumor cell behavior and microenvironmental influences.
Naturally derived biopolymers are promising components for developing sophisticated in vitro cancer models.
This approach enhances our understanding of tumor progression and metastasis in a controlled setting.