Metastasis Suppressor
Metastasis Suppressor - Related Videos
08:28
Experimental Metastasis Assay
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Cited by 28 •
2010
This article describes the procedures of an experimental metastasis assay that is used to determine the metastatic potential of human cancer cell lines.
11:43
Advanced Animal Model of Colorectal Metastasis in Liver: Imaging Techniques and Properties of Metastatic Clones
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Cited by 6 •
2016
The ability of metastatic clones to colonize distant sites depends on their proliferation capacity and/or their ability to survive in the host microenvironment without significant proliferation. Here, we present an animal model that allows quantitative visualization of both types of liver colonization by metastatic clones.
08:49
Models of Bone Metastasis
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Cited by 115 •
2012
Animal models are frequently utilized to study cancer metastasis to bone. In this protocol we will describe two common methods of tumor inoculation for bone metastasis studies and briefly describe some of the analyses utilized to monitor and quantify these models.
02:30
Metastasis
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2021
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body. 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...
01:12
Loss of Tumor Suppressor Gene Functions
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2023
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells. 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...
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Their effects can be selective: a tumor may still form and enlarge at its original site while losing the capacity to complete later steps of dissemination. Investigating this separation helps researchers distinguish mechanisms that control primary tumor growth from those regulating motility, invasion, survival in circulation, vessel interactions, or colonization of distant tissue.
Metastasis suppressors influence a chain of vulnerabilities rather than a single endpoint. Changes in tumor-cell motility can affect movement, while altered invasion, survival in circulation, blood-vessel interactions, or colonization can block later stages. This stage-specific perspective helps explain why metastatic spread may fail even when the primary tumor remains present.
NM23, KAI1/CD82, and BRMS1 serve as important research examples because their study connects particular genes or proteins with differences in dissemination. Examining these suppressors helps clarify how tumor cells communicate with surrounding tissue and why some tumors spread to distant organs whereas others remain localized.
Signaling between tumor cells and their microenvironment matters because dissemination depends on more than cancer-cell behavior alone. Metastasis suppressor pathways may alter how tumor cells interact with surrounding tissue, blood vessels, and new tissue. Examining these signals therefore provides a broader explanation for whether disseminated cells survive and establish a new site.
A study can focus on a named gene or protein, relate its activity to processes required for dissemination, and compare findings with whether tumors spread or remain localized. Researchers can then interpret the pathway in relation to primary tumor growth, distant-organ involvement, and communication between cancer cells and the microenvironment.
Findings may support biomarkers that indicate metastatic risk, improve assessment of whether a tumor is likely to disseminate, and identify pathways for therapies aimed at preventing metastatic relapse. The goal is not necessarily to eliminate the primary tumor directly, but to reduce the likelihood that surviving cancer cells establish disease in distant organs.