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Updated: Jul 4, 2026

The Use of Mouse Mammary Tumor Cells in an In Vitro Invasion Assay as a Measure of Oncogenic Cell Behavior
Published on: June 12, 2019
Early stage cancer cell invasion: signaling, biomarkers and therapeutic targeting
Emy Behmoaram1, Krikor Bijian, Tarek A Bismar
1Segal Comprehensive Cancer Center, Lady Davis Institute of the Sir Mortimer B. Davis Jewish General Hospital, Department of Medicine, Faculty of Medicine, McGill University, 3755 Cote Ste-Catherine, Montreal, Canada H3T 1E2.
Abstract:
The process of primary cancer invasion of distant organs is multifactorial and multistep. Successful therapeutic management of invasive cancers remains hampered by the multitude of overlapping signaling pathways that initiate and drive cancer cell migration. A crucial early event by which cancer cells switch from localized to invasive states is initiated by the acquisition of autonomous motile properties; a process driven by dynamic assemblies and disassemblies of multiple focal adhesion, cytoskeleton and motor proteins. Several of the protein complexes involved are tightly regulated through posttranslational modifications and intermolecular collisions with partners that occur in a time- and space-dependent manner. These concerted mechanisms are essential for the regulation of cell shape, cell polarity, and cell motility and migration in response to chemotactic signals. This review summarizes the current knowledge in the field and potential clinical implications for molecular pathology and cancer therapeutics. It is not meant to be comprehensive; aspects related to basic signaling are not dealt with extensively in this review. However, the reader is referred to excellent reviews that provide coverage of these topics.
Insights
Cancer cell invasion involves complex molecular mechanisms regulating motility and migration. Understanding these processes offers potential for new cancer therapeutics and molecular pathology strategies.
Area of Science:
- Oncology
- Cell Biology
- Molecular Pathology
Background:
- Cancer cell invasion and metastasis are critical challenges in oncology.
- Therapeutic management of invasive cancers is hindered by complex signaling pathways driving cell migration.
- Cancer cell motility is initiated by acquiring autonomous movement, involving focal adhesions, cytoskeleton, and motor proteins.
Purpose of the Study:
- To review current knowledge on the molecular mechanisms of primary cancer invasion.
- To highlight potential clinical implications for molecular pathology and cancer therapeutics.
Main Methods:
- Literature review of current research on cancer cell invasion and migration.
- Focus on protein complexes, posttranslational modifications, and signaling pathways involved in cell motility.
- Discussion of clinical implications without exhaustive coverage of basic signaling.
Main Results:
- Cancer cell invasion is a multistep process regulated by dynamic protein assemblies and posttranslational modifications.
- Cell shape, polarity, and migration are controlled by concerted molecular mechanisms in response to chemotactic signals.
- Understanding these mechanisms is key to developing novel cancer treatments.
Conclusions:
- The molecular intricacies of cancer cell invasion present therapeutic targets.
- Further research into these pathways can advance molecular pathology and improve cancer treatment strategies.
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