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Updated: Sep 28, 2026

In vitro Cell Migration and Invasion Assays
Published on: June 1, 2014
Calpain: a role in cell transformation and migration
Neil O Carragher1, Margaret C Frame
1The Beatson Institute for Cancer Research, Cancer Research UK Beatson Laboratories, G61 1BD Glasgow, Scotland, UK. n.carragher@beatson.gla.ac.uk
Abstract:
Calpains represent a well conserved family of calcium-dependent proteolytic enzymes. Recent progress in determining the three-dimensional crystal structure of calpains and generation of calpain knock out animals have significantly advanced our understanding of both the activation mechanism and physiological role of this protease family. Studies applying molecular intervention strategies and genetic ablation of calpain now provide indisputable evidence that calpain activity contributes to remodelling of the actin cytoskeleton, cell migration and oncogenic transformation. Src and epidermal growth factor receptor (EGFR) stimulated cell motility is dependent upon calpain activation. In addition, calpain promotes accelerated cell-cycle progression and anchorage-independent growth of Src transformed cells. In vivo studies demonstrate a link between calpain expression levels and activity with tumour development and invasion. Thus, recent investigations suggest that the role of calpain in promoting cell transformation and cell migration may have important in vivo consequences in the context of cancer pathobiology.
Insights
Calpain activity is crucial for cell migration and cancer progression. Genetic and molecular studies confirm calpain
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Calpains are calcium-dependent proteases with essential cellular functions.
- Recent structural and genetic studies have illuminated calpain activation and roles.
Purpose of the Study:
- To investigate the physiological roles of calpains in cellular processes.
- To explore the involvement of calpains in oncogenic transformation and cell migration.
Main Methods:
- Determining three-dimensional crystal structures of calpains.
- Generating calpain knockout animal models.
- Employing molecular intervention strategies and genetic ablation.
- Analyzing Src and epidermal growth factor receptor (EGFR) stimulated cell motility.
Main Results:
- Calpain activity is essential for actin cytoskeleton remodeling and cell migration.
- Calpain promotes cell-cycle progression and anchorage-independent growth in Src-transformed cells.
- In vivo studies link calpain levels and activity to tumor development and invasion.
Conclusions:
- Calpain plays a significant role in promoting cell transformation and migration.
- Calpain's functions have critical implications in cancer pathobiology.
- Targeting calpain may offer therapeutic strategies for cancer treatment.
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