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Updated: May 7, 2026

Micromanipulation of Circulating Tumor Cells for Downstream Molecular Analysis and Metastatic Potential Assessment
Published on: May 14, 2019
CCL2 at the crossroad of cancer metastasis
1Institute for Cancer Research (ICR) & Comprehensive Cancer Center (CCC); Medical University of Vienna; Vienna, Austria.
Abstract:
Primary tumors can affect organ functions, either mechanically when they grow to a considerable size or via production of hormones. However, mortality of cancer patients is in most cases due to formation of secondary growths.(1) (,) (2) Consequently, various drugs are currently employed in clinical trials to impair specific steps of cancer metastasis such as mesenchymal or amoeboid cell migration, intravasation and/or colonization.(2) From the clinical point of view, targeting late metastatic processes such as extravasation or colonization might be required for cancer patients that bear already dormant micrometastases in their capillaries which have left behind earlier metastatic steps. Development of such drugs needs characterization of molecular targets implicated in distinct steps of cancer metastasis.
Insights
Cancer metastasis, the spread of secondary growths, is a leading cause of mortality. New drugs targeting specific steps of cancer metastasis, like cell migration and colonization, are in clinical trials to improve patient outcomes.
Area of Science:
- Oncology
- Cancer Biology
- Molecular Biology
Background:
- Primary tumors can impair organ function through mechanical pressure or hormone production.
- Cancer patient mortality is predominantly linked to the formation of secondary growths (metastasis).
- Current research focuses on inhibiting specific steps of cancer metastasis, including cell migration, intravasation, and colonization.
Purpose of the Study:
- To highlight the clinical need for drugs targeting late-stage metastatic processes.
- To emphasize the importance of characterizing molecular targets in distinct metastasis steps.
- To support the development of novel anti-metastatic therapies.
Main Methods:
- Review of current clinical trials for anti-metastatic drugs.
- Analysis of molecular mechanisms underlying cancer metastasis.
- Identification of potential therapeutic targets in distinct metastatic phases.
Main Results:
- Metastasis, not primary tumor growth, is the main cause of cancer-related death.
- Drugs targeting cancer cell migration, intravasation, and colonization are under investigation.
- Late metastatic steps like extravasation and colonization are critical for patients with dormant micrometastases.
Conclusions:
- Targeting late metastatic processes is crucial for patients with established micrometastases.
- Further characterization of molecular targets is essential for developing effective anti-metastatic drugs.
- Developing drugs that impair distinct steps of metastasis can improve cancer patient survival rates.
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