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Updated: Aug 19, 2026

A Mimic of the Tumor Microenvironment: A Simple Method for Generating Enriched Cell Populations and Investigating Intercellular Communication
Published on: September 20, 2016
Stromal cells can contribute oncogenic signals
1Department of Pathology, UCSF Comprehensive Cancer Center, University of California, San Francisco 94143-0506, USA. ttlsty@itsa.ucsf.edu
Abstract:
The majority of studies of neoplastic transformation have focused attention on events that occur within transformed cells. These cell autonomous events result in the disruption of molecular pathways that regulate basic activities of the cells such as proliferation, death, movement and genomic integrity. Other studies have addressed the microenvironment of tumor cells and documented its importance in supporting tumor progression. Recent work has begun to expand on these initial studies of tumor microenvironment and now provide novel insights into the possible initiation and progression of malignant cells. This review will address the transforming effect of stromal cells on epithelial components.
Insights
Stromal cells, not just cancer cells, can initiate and drive neoplastic transformation. This review explores how the tumor microenvironment, specifically stromal cells, influences epithelial components to promote cancer development.
Area of Science:
- Oncology
- Cell Biology
- Cancer Research
Background:
- Neoplastic transformation research traditionally focuses on intracellular events within cancer cells.
- These cell-autonomous events disrupt critical cellular functions like proliferation, apoptosis, motility, and genome stability.
- The tumor microenvironment's role in supporting tumor progression is increasingly recognized.
Purpose of the Study:
- To review the transforming effects of stromal cells on epithelial components.
- To highlight recent insights into the initiation and progression of malignant cells driven by the microenvironment.
- To shift focus from cell-autonomous events to microenvironment-driven carcinogenesis.
Main Methods:
- Literature review of studies on neoplastic transformation and tumor microenvironment.
- Synthesis of recent research on stromal-epithelial interactions in cancer.
- Analysis of molecular pathways influenced by stromal cells.
Main Results:
- Stromal cells actively contribute to neoplastic transformation, not just support it.
- Interactions between stromal and epithelial cells are crucial for cancer initiation and progression.
- The tumor microenvironment offers novel targets for cancer therapy.
Conclusions:
- Stromal cells possess transforming capabilities that impact epithelial components.
- Understanding these stromal-epithelial interactions is key to deciphering cancer development.
- Future research should further investigate the microenvironment's role in oncogenesis.
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