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Updated: Jul 5, 2025

A Mouse Model to Investigate the Role of Cancer-Associated Fibroblasts in Tumor Growth
Published on: December 22, 2020
Metastasis and cancer associated fibroblasts: taking it up a NOTCH
Argha Ghosh1,2, Anirban K Mitra1,2,3
1Indiana University School of Medicine-Bloomington, Bloomington, IN, United States.
Abstract:
Metastasis is the least understood aspect of cancer biology. 90% of cancer related deaths occur due extensive metastatic burden in patients. Apart from metastasizing cancer cells, the pro-tumorigenic and pro-metastatic role of the tumor stroma plays a crucial part in this complex process often leading to disease relapse and therapy resistance. Cellular signaling processes play a crucial role in the process of tumorigenesis and metastasis when aberrantly turned on, not just in the cancer cells, but also in the cells of the tumor microenvironment (TME). One of the most conserved pathways includes the Notch signaling pathway that plays a crucial role in the development and progression of many cancers. In addition to its well documented role in cancer cells, recent evidence suggests crucial involvement of Notch signaling in the stroma as well. This review aims to highlight the current findings focusing on the oncogenic role of notch signaling in cancer cells and the TME, with a specific focus on cancer associated fibroblasts (CAFs), which constitute a major part of the tumor stroma and are important for tumor progression. Recent efforts have focused on the development of anti-cancer and anti-metastatic therapies targeting TME. Understanding the importance of Notch signaling in the TME would help identify important drivers for stromal reprogramming, metastasis and importantly, drive future research in the effort to develop TME-targeted therapies utilizing Notch.
Insights
Metastasis, a major cause of cancer deaths, involves tumor stroma. Notch signaling in cancer cells and tumor microenvironment (TME), particularly cancer-associated fibroblasts (CAFs), drives metastasis and therapy resistance.
Area of Science:
- Oncology
- Cancer Biology
- Cellular Signaling
Background:
- Metastasis accounts for 90% of cancer-related deaths, with the tumor stroma playing a critical role.
- Aberrant cellular signaling in both cancer cells and the tumor microenvironment (TME) promotes tumorigenesis and metastasis.
- The Notch signaling pathway is implicated in cancer development and progression, with emerging evidence of its role in the stroma.
Purpose of the Study:
- To review the oncogenic role of Notch signaling in cancer cells.
- To highlight the involvement of Notch signaling in the tumor microenvironment (TME), focusing on cancer-associated fibroblasts (CAFs).
- To underscore the potential of targeting Notch signaling in the TME for developing novel anti-cancer and anti-metastatic therapies.
Main Methods:
- Literature review of current findings on Notch signaling in cancer.
- Analysis of Notch signaling's role in tumor stroma, specifically CAFs.
- Synthesis of information regarding TME-targeted therapies involving Notch signaling.
Main Results:
- Notch signaling is oncogenic in cancer cells.
- Notch signaling significantly contributes to tumor progression via CAFs within the TME.
- Understanding Notch signaling in the TME is crucial for developing stromal reprogramming strategies.
Conclusions:
- Notch signaling is a key driver in both cancer cells and the TME, promoting metastasis.
- Targeting Notch signaling in CAFs offers a promising therapeutic strategy for combating metastasis and therapy resistance.
- Further research into Notch signaling in the TME is essential for advancing anti-cancer therapies.
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08:02Isolation of Primary Cancer-Associated Fibroblasts from a Syngeneic Murine Model of Breast Cancer for the Study of Targeted Nanoparticles
Published on: May 14, 2021
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