Related Experiment Video
Updated: May 13, 2026

Experimental Metastasis and CTL Adoptive Transfer Immunotherapy Mouse Model
Published on: November 26, 2010
Learning therapeutic lessons from metastasis suppressor proteins
Steven Christopher Smith1, Dan Theodorescu
1Department of Molecular Physiology and Biological Physics, University of Virginia Health System, Charlottesville, Virginia 22908, USA.
Abstract:
Metastasis suppressor proteins regulate multiple steps in the metastatic cascade, including cancer cell invasion, survival in the vascular and lymphatic circulation, and colonization of distant organ sites. Understanding the biology of metastasis suppressors provides valuable mechanistic insights that may translate to therapeutic opportunities. Several reports have explored novel strategies for restoring metastasis suppressor function, including gene transfer, induction of previously suppressed gene expression and exogenous administration of gene product. Pathways activated downstream of metastasis suppressor loss can also be targeted. Although none of these strategies are yet in routine clinical use, several are being tested preclinically and in clinical trials.
Insights
Metastasis suppressor proteins control cancer spread. Strategies to restore their function, like gene therapy, are being explored for cancer treatment and are in clinical trials.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Metastasis Research
Background:
- Metastasis suppressor proteins are key regulators of the metastatic cascade.
- Their loss contributes to cancer cell invasion, survival in circulation, and organ colonization.
- Understanding these proteins offers insights into therapeutic strategies.
Purpose of the Study:
- To review current strategies for restoring metastasis suppressor function.
- To highlight potential therapeutic opportunities based on metastasis suppressor biology.
Main Methods:
- Review of existing literature on metastasis suppressor proteins.
- Analysis of novel therapeutic strategies including gene transfer, gene expression induction, and protein administration.
- Examination of targeting downstream pathways affected by metastasis suppressor loss.
Main Results:
- Multiple strategies are being investigated to restore metastasis suppressor activity.
- These include gene transfer, enhancing suppressed gene expression, and administering gene products.
- Targeting pathways downstream of metastasis suppressor loss is also a viable approach.
Conclusions:
- Restoring metastasis suppressor function holds therapeutic potential for cancer.
- Current strategies are under preclinical and clinical investigation.
- Further research may lead to clinical applications for managing cancer metastasis.
Related Concept Videos
Mitogens and the Cell Cycle
Replicative Cell Senescence
Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...

