Fluorescent Protein-Based Biosensors pp 163-174

Part of the Methods in Molecular Biology book series (MIMB, volume 1071)

Genetically Encoded Fluorescent Biosensors for Live-Cell Imaging of MT1-MMP Protease Activity

  • Mingxing Ouyang
  • Shaoying Lu
  • Yingxiao Wang


The proteolytic activity of Membrane-type 1 Matrix Metalloproteinase (MT1-MMP) is crucial for cancer cell invasion and metastasis. To visualize the protease activity of MT1-MMP with high spatiotemporal resolution at the extracellular plasma membrane surface of live cancer cells, a genetically encoded fluorescent biosensor of MT1-MMP has been developed. Here we describe the design principles of the MT1-MMP biosensor, the characterization of the MT1-MMP biosensor in vitro, and the live-cell imaging protocol used to visualize MT1-MMP activity in mammalian cells. We also provide brief guidelines for observing MT1-MMP subcellular activity by fluorescence resonance energy transfer (FRET) in a cell migration assay.

Key words

Fluorescent biosensor FRET Live-cell imaging MT1-MMP Matrix Metalloproteinase Protease Cancer cell 


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Copyright information

© Springer Science+Business Media, LLC 2014

Authors and Affiliations

  • Mingxing Ouyang
    • 1
  • Shaoying Lu
    • 1
  • Yingxiao Wang
    • 2
    • 3
  1. 1.Department of BioengineeringUniversity of Illinois at Urbana-ChampaignChampaignUSA
  2. 2.Department of Bioengineering, Neuroscience Program, Center of Biophysics and Computational Biology, Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana-ChampaignChampaignUSA
  3. 3.Department of Molecular and Integrative PhysiologyUniversity of Illinois at Urbana-ChampaignChampaignUSA

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