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The Use Of A Multi-metric Readout Screen To Identify Ehmt2/g9a-inhibition As A Modulator Of Cancer-associated Fibroblast Activation State.

Home
Research Domains
Biomedical And Clinical Sciences
Oncology And Carcinogenesis
Predictive And Prognostic Markers
The Use Of A Multi-metric Readout Screen To Identify Ehmt2/g9a-inhibition As A Modulator Of Cancer-associated Fibroblast Activation State.

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The use of a multi-metric readout screen to identify EHMT2/G9a-inhibition as a modulator of cancer-associated fibroblast activation state.

Nila C Wu¹, Rene Quevedo², Michelle Nurse³

¹Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada.

|October 12, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

EHMT2 (G9a) epigenetically regulates cancer-associated fibroblasts (CAFs), reducing their abundance and pro-invasive traits. Inhibiting EHMT2 offers a potential strategy to decrease tumour aggressiveness and improve cancer outcomes.

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Area of Science:

Oncology
Epigenetics
Cancer Biology

Background:

Cancer-associated fibroblasts (CAFs) promote tumor progression by remodeling the extracellular matrix (ECM) and secreting factors that enhance tumor cell invasion.
Reduced CAF abundance correlates with better patient outcomes in several cancer types, highlighting CAFs as therapeutic targets.
Understanding the epigenetic regulation of CAF activation is crucial for developing strategies to reduce tumor aggressiveness.

Purpose of the Study:

To identify epigenetic targets regulating CAF activation and CAF-mediated tumor cell invasion.
To explore the role of EHMT2 (G9a) in modulating CAF abundance and function within the tumor microenvironment.

Main Methods:

Utilized the GLAnCE (Gels for Live Analysis of Compartmentalized Environments) platform for an image-based phenotypic screen.

Conducted transcriptomic and functional analyses on EHMT2-inhibited CAFs.

Investigated the impact of EHMT2 on CAF activation, proliferation, and pro-invasive phenotype.

Main Results:

Identified EHMT2 (G9a), a histone methyltransferase, as a key regulator of CAF abundance and CAF-mediated tumor cell invasion.
EHMT2 inhibition reduced CAF abundance and their capacity to induce tumor cell invasion.
EHMT2 promotes a pro-invasive CAF phenotype and mediates CAF hyperproliferation, contributing to tumor aggressiveness.

Conclusions:

EHMT2 plays a significant role in regulating the CAF state within the tumor microenvironment.
Targeting EHMT2 can modulate CAF activation and proliferation, thereby reducing the pro-invasive effects of CAFs on tumor cells.
Inhibiting EHMT2 presents a potential therapeutic strategy to decrease tumor aggressiveness by targeting CAF activation and function.