Regulation of Matrix Metalloproteinases in Cancer Metastasis

The progression of cancer from a benign to a metastatic phase is critically dependent on the dynamic remodelling of the extracellular matrix (ECM), a process largely orchestrated by matrix metalloproteinases (MMPs). These zinc-dependent endopeptidases modulate tumour invasion, angiogenesis and the establishment of distant metastases through degradation of basement membranes and interstitial matrices. Regulation of MMP activity occurs at multiple levels, including transcriptional control, proenzyme activation, inhibition by endogenous regulators and modulation by non-canonical factors such as the membrane-anchored glycoprotein RECK. Oncogenic signalling pathways, inflammatory cytokines and tumour microenvironment cues converge to tip the balance towards proteolysis, facilitating epithelial–mesenchymal transition (EMT), cell motility and intravasation. Recent work has uncovered complex interactions between growth factor receptors, epigenetic modifiers and microRNA circuits in fine-tuning MMP expression, alongside novel mechanisms of proMMP activation at the cell surface. Simultaneously, expanding evidence emphasises the role of matrix stabilisers—RECK, ADAMTS family members and others—in controlling protease localisation, internalisation and turnover. These insights highlight the therapeutic potential of targeting MMP regulators to restrain metastatic dissemination.

Research from Nature Portfolio

Recent studies have employed advanced biochemical and in vivo approaches to revisit the role of RECK in MMP regulation. A detailed analysis of recombinant RECK variants produced in distinct expression systems demonstrated that earlier observations of direct MMP inhibition by this tumour suppressor were likely artefacts of co-purified proteolytic contaminants, prompting a shift towards mechanisms involving modulation of protease localisation and turnover rather than catalytic blockade. In a complementary animal model, conditional deletion of RECK in vascular mural cells revealed its essential function in maintaining fibronectin matrices during angiogenesis. Loss of RECK led to dysregulated MMP activity at sprouting vessels, impaired endothelial–mural cell interactions and altered matrix architecture, underscoring a critical role in vascular stability that may parallel its contribution to tumour neovascularisation and metastatic seeding.

Regulation of Matrix Metalloproteinases in Cancer Metastasis publication trend

The graph below shows the total number of articles in regulation of matrix metalloproteinases in cancer metastasis across all publications each year (not limited to Nature Index journals).

Technical terms

Matrix metalloproteinases (MMPs): Zinc-dependent endopeptidases that degrade components of the extracellular matrix to facilitate tissue remodelling and tumour invasion.

RECK: A membrane-anchored glycoprotein that regulates MMP activity by modulating protease localisation, activation and endocytic trafficking.

Epithelial–mesenchymal transition (EMT): A cellular programme whereby epithelial cells acquire mesenchymal traits, including enhanced motility and invasive capacity, often driven by protease-mediated matrix remodelling.

Extracellular matrix (ECM): A complex network of proteins and polysaccharides providing structural support to tissues and regulating cell behaviour through biochemical and mechanical cues.

ERK/MAPK pathway: A signalling cascade involved in cell proliferation and survival, whose dysregulation can promote MMP expression and metastatic progression.

References

1. Pancreatic RECK inactivation promotes cancer formation, epithelial-mesenchymal transition, and metastasis. Journal of Clinical Investigation (2023).
2. Identification of RECK as a protective prognostic indicator and a tumor suppressor through regulation of the ERK/MAPK signaling pathway in gastric cancer. Journal of Translational Medicine (2023).
3. Critical roles for murine Reck in the regulation of vascular patterning and stabilization. Scientific Reports (2015).
4. Analysis of the inhibiting activity of reversion-inducing cysteine-rich protein with Kazal motifs (RECK) on matrix metalloproteinases. Scientific Reports (2020).