Related Experiment Video
Updated: Feb 22, 2026
A Brain Tumor/Organotypic Slice Co-culture System for Studying Tumor Microenvironment and Targeted Drug Therapies
Published on: November 7, 2015
Uncovering the silent invaders: Dormant tumour cells in the brain microenvironment
Yufei Ze1, Rongchen Dai1, Yulong Zhang1
1School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai 201203, China.
Abstract:
Brain metastasis remains a lethal clinical challenge, largely driven by dormant tumour cells (DTCs). This reversible quiescent state enables disseminated cancer cells to evade conventional therapies and eventually cause relapse. This review provides an in-depth overview of the mechanisms through which the unique brain microenvironment orchestrates the dormancy plasticity. We summarize the multicellular crosstalk between brain DTCs and brain resident cells, including astrocytes, microglia, neurons, stromal cells and fibroblasts. The stiffness, degradability and adhesion cues of the brain extracellular matrix (ECM) act as biomechanical switches that critically determine the dormant fate of brain DTCs. Moreover, brain DTCs possess intrinsic self-regulatory programs that leverage epigenetic, metabolic and immune-evasion mechanisms to control their transition between quiescence and proliferation. Despite considerable therapeutic challenges, emerging strategies such as niche-targeting therapies and artificial intelligence-driven computational models offer promising avenues for eradicating dormant reservoirs. A deeper understanding of these complex interactions is essential for developing novel interventions to prevent brain metastatic recurrence driven by DTCs and ultimately improve patient survival.
Insights
Brain metastasis is driven by dormant tumor cells (DTCs) that evade therapy. This review explores how the brain microenvironment influences DTC dormancy and discusses new strategies to target these cells and prevent relapse.
Area of Science:
- Neuro-oncology
- Cancer Biology
- Tumor Microenvironment
Background:
- Brain metastasis is a major cause of cancer-related death.
- Dormant tumor cells (DTCs) evade therapy and cause relapse.
- Understanding DTCs in the brain is critical for effective treatment.
Purpose of the Study:
- To review mechanisms of brain metastasis dormancy.
- To explore the role of the brain microenvironment in DTC plasticity.
- To summarize current and emerging therapeutic strategies.
Main Methods:
- Literature review of mechanisms of DTC dormancy in the brain.
- Analysis of multicellular crosstalk between DTCs and brain cells.
- Examination of the role of the brain extracellular matrix (ECM).
- Review of intrinsic DTC regulatory programs (epigenetic, metabolic, immune-evasion).
Main Results:
- The brain microenvironment, including resident cells and ECM biomechanical properties, dictates DTC dormancy.
- DTCs utilize intrinsic programs for quiescence and proliferation control.
- Multicellular crosstalk and ECM cues are key regulators of dormancy plasticity.
Conclusions:
- Targeting the brain microenvironment and DTCs is essential for preventing recurrence.
- Emerging therapies like niche-targeting and AI models offer hope for eradicating dormant reservoirs.
- Further research into brain DTC interactions is crucial for improving patient survival.
