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Updated: Sep 21, 2025

A Novel Stromal Fibroblast-Modulated 3D Tumor Spheroid Model for Studying Tumor-Stroma Interaction and Drug Discovery
Published on: February 28, 2020
Cancer Stem Cells (CSCs), Circulating Tumor Cells (CTCs) and Their Interplay with Cancer Associated Fibroblasts
Beatrice Aramini1, Valentina Masciale2, Chiara Arienti3
1Division of Thoracic Surgery, Department of Experimental, Diagnostic and Specialty Medicine-DIMES of the Alma Mater Studiorum, University of Bologna, G.B. Morgagni-L. Pierantoni Hospital, 47121 Forlì, Italy.
Abstract:
The importance of defining new molecules to fight cancer is of significant interest to the scientific community. In particular, it has been shown that cancer stem cells (CSCs) are a small subpopulation of cells within tumors with capabilities of self-renewal, differentiation, and tumorigenicity; on the other side, circulating tumor cells (CTCs) seem to split away from the primary tumor and appear in the circulatory system as singular units or clusters. It is becoming more and more important to discover new biomarkers related to these populations of cells in combination to define the network among them and the tumor microenvironment. In particular, cancer-associated fibroblasts (CAFs) are a key component of the tumor microenvironment with different functions, including matrix deposition and remodeling, extensive reciprocal signaling interactions with cancer cells and crosstalk with immunity. The settings of new markers and the definition of the molecular connections may present new avenues, not only for fighting cancer but also for the definition of more tailored therapies.
Insights
Identifying new cancer biomarkers is crucial for targeting cancer stem cells (CSCs) and circulating tumor cells (CTCs). Understanding their interactions with the tumor microenvironment, including cancer-associated fibroblasts (CAFs), can lead to tailored cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Cancer stem cells (CSCs) possess self-renewal and tumorigenicity, contributing to tumor growth.
- Circulating tumor cells (CTCs) disseminate from primary tumors, posing a metastatic threat.
- The tumor microenvironment, including cancer-associated fibroblasts (CAFs), significantly influences cancer progression and treatment resistance.
Purpose of the Study:
- To highlight the importance of discovering novel biomarkers for CSCs and CTCs.
- To elucidate the molecular connections within the tumor microenvironment.
- To explore new therapeutic strategies targeting these cellular components.
Main Methods:
- Literature review on CSCs, CTCs, and CAFs.
- Analysis of molecular interactions and signaling pathways.
- Identification of potential biomarkers and therapeutic targets.
Main Results:
- CSCs and CTCs represent critical targets in cancer therapy.
- CAFs play a multifaceted role in supporting tumor growth and modulating the immune response.
- Interactions between cancer cells and the tumor microenvironment are key to understanding cancer progression.
Conclusions:
- Defining new biomarkers for CSCs and CTCs is essential for advancing cancer treatment.
- Understanding the complex network of the tumor microenvironment, including CAFs, offers new therapeutic avenues.
- Targeting CSCs, CTCs, and their interactions may lead to more personalized and effective cancer therapies.
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