Effects of CAF-Derived MicroRNA on Tumor Biology and Clinical Applications
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Updated: Oct 30, 2025

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
Xu Wang1,2,3, Xin Wang1,2,3, Midie Xu1,2
1Department of Pathology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai 200032, China.
Abstract:
Cancer-associated fibroblasts (CAFs), prominent cell components of the tumor microenvironment (TME) in most types of solid tumor, play an essential role in tumor cell growth, proliferation, invasion, migration, and chemoresistance. MicroRNAs (miRNAs) are small, non-coding, single-strand RNAs that negatively regulate gene expression by post-transcription modification. Increasing evidence has suggested the dysregulation of miRNAs in CAFs, which facilitates the conversion of normal fibroblasts (NFs) into CAFs, then enhances the tumor-promoting capacity of CAFs. To understand the process of tumor progression, as well as the development of chemoresistance, it is important to explore the regulatory function of CAF-derived miRNAs and the associated molecular mechanisms, which may become potential diagnostic and prognostic biomarkers and targets of anti-tumor therapeutics. In this review, we describe miRNAs that are differentially expressed by NFs and CAFs, summarize the modulating role of CAF-derived miRNAs in fibroblast activation and tumor advance, and eventually identify a potential clinical application for CAF-derived miRNAs as diagnostic/prognostic biomarkers and therapeutic targets in several tumors.
Insights
Cancer-associated fibroblasts (CAFs) influence tumor progression and chemoresistance. CAF-derived microRNAs (miRNAs) are key regulators, offering potential as diagnostic biomarkers and therapeutic targets.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Cancer-associated fibroblasts (CAFs) are key components of the tumor microenvironment (TME).
- CAFs significantly impact tumor cell growth, invasion, migration, and chemoresistance.
- MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression.
Purpose of the Study:
- To explore the regulatory function of CAF-derived miRNAs in tumor progression and chemoresistance.
- To understand the molecular mechanisms underlying CAF activation and function.
- To identify potential clinical applications of CAF-derived miRNAs.
Main Methods:
- Review of existing literature on miRNA dysregulation in CAFs.
- Analysis of differentially expressed miRNAs between normal fibroblasts (NFs) and CAFs.
- Summarization of the role of CAF-derived miRNAs in fibroblast activation and tumor advancement.
Main Results:
- Dysregulation of miRNAs in CAFs promotes the conversion of NFs to CAFs.
- CAF-derived miRNAs enhance the tumor-promoting capacity of CAFs.
- Specific miRNAs show differential expression between NFs and CAFs.
Conclusions:
- CAF-derived miRNAs play a crucial role in tumor progression and chemoresistance.
- These miRNAs represent potential diagnostic and prognostic biomarkers.
- CAF-derived miRNAs are promising targets for anti-tumor therapeutics.
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