check quantity

IVISense Cat B 680 FAST Fluorescent Probe

IVISense Cat B FAST fluroescent probes enable non-invasive in vivo detection of disease status and progression in oncology, inflammation and other areas associated with Cat B activity.

Associated with tumor aggression, cathepsins are a family of proteases that are pivotal components of signaling pathways that can enhance cancer cell growth and inflammation. Within the human lysosomal cysteine cathepsin family, there are 11 members, including cathepsin B, L, S, and Plasmin. As a family, cysteine cathepsins are involved in the response to anticancer therapy within the tumor microenvironment and play crucial roles in the development of resistance to therapeutics. In particular, cathepsin B expression correlates with the invasive and metastatic capabilities of many tumors, such as in breast cancer where high expression levels of cathepsin B have been linked to highly aggressive tumors. Cathepsin B is also upregulated in a variety of inflammatory cells (including eosinophils, neutrophils, and macrophages).

For research use only. Not for use in diagnostic procedures.

Part Number
SKU Display Name
List Price
Your Price
IVISense Cat B 680 FAST Fluorescent Probe
817.00 USD
IVISense Cat B 750 FAST Fluorescent Probe
793.00 USD
Buy Now

Please enter valid quantity

Please log in to add favorites.



IVISense Cat B 680 FAST™ is a Cathepsin B activatable fluorescent probe that is optically silent upon injection and produces fluorescent signal after cleavage by Cathepsin B produced by inflammatory cells and tumor cells. IVISense Cat B 680 FAST may be used to monitor inflammation, tumor activity, progression of disease and the efficacy of therapeutic treatment in applications such as oncology, inflammation, cardiovascular disease and some neurological diseases.

IVISense Cat B 680 FAST is a member of a family of activatable fluorescent imaging agents comprising a novel architecture, termed F.A.S.T. (Fluorescent Activatable Sensor Technology) that confers an improved pharmacokinetic profile with a broader range of early imaging time points. This architecture also offers higher target-specific signal with reduced background.


Fluorescent Agent Type Activatable
Optical Imaging Classification Fluorescence Imaging
Product Brand Name IVISense
Quantity in a Package Amount 1.0 Units
Shipping Condition Ambient
Therapeutic Area Atherosclerosis, Arthritis, Inflammation, Oncology/Cancer
Unit Size 1 Vial (10 doses)
Wave Length 680 nm
Resources, Events & More
  • All

Application Note

In Vivo Imaging of Atherosclerosis Disease Using FMT

Current means of measuring disease in preclinical models of atherosclerosis include ex vivo assessment of disease tissues post-mortem and non-invasive imaging primarily of structural and anatomic features of lesions, in vivo. A non-invasive, quantitative means of imaging known biologic profiles associated with atherosclerotic disease, in vivo, would enable a robust additional understanding and analysis of disease progression and therapeutic response in research and drug development. We report the utility of the near infrared (NIR) protease-sensing, ProSense® 750 Fluorescent Pre-clinical Imaging Agent, in combination with the FMT® 2500 Quantitative Pre-clinical Imaging System for the non-invasive quantitative measurement of atherosclerotic disease biology and related response to therapy in apolipoprotein (apo) E-deficient mice in vivo. FMT (Fluorescence Molecular Tomography) imaging measured significant increases in aortic region protease activity with a range of values that were comparable to the range seen in the ex vivo aortic arches assessed by fluorescence reflectance imaging (FRI).


Case Study

A Novel Non-Invasive In Vivo Diagnostic Tool for the Assessment of NASH

Non-alcoholic fatty liver disease (NAFLD) describes a progressive pathology that affects the liver. Fat accumulation causes fatty liver (NAFL) or steatosis to develop, which leads to lipotoxicity and in turn induces liver inflammation and apoptosis, resulting in non-alcoholic steatohepatitis (NASH). NASH can progress to fibrosis and then cirrhosis, which in some cases will lead to hepatocellular carcinoma (HCC).

Read this case study to learn how non-invasive preclinical in vivo imaging was used to longitudinally visualize, quantify, and diagnose NASH with the goal of investigating the efficacy of liver fibrosis-preventing drugs on NAFLD progression.

PDF 963 KB


In Vivo Imaging Solutions eBook

Researchers trust our in vivo imaging solutions to give them reliable, calibrated data that reveals pathway characterization and therapeutic efficacies for a broad range of indications. Our reagents, instruments, and applications support have helped hundreds of research projects over the years. And our hard-earned expertise makes us a trusted provider of pre-clinical imaging solutions— with more than 9,000 peer reviewed articles as proof.



Best Practices for Designing An Effective In Vivo Fluorescence Imaging Study

Fluorescence molecular imaging is the visualization of cellular and biological function in vivo to gain deeper insights into disease processes and treatment effects. Designing an effective study from the beginning can help save time and resources.

Learn about several important best practices, from proper probe selection to study design to imaging technique tips and tricks needed to generate meaningful biological information from your in vivo fluorescence imaging studies.

PDF 507 KB


A novel NIR dye for in vivo temporal tracking of labeled macrophages to sites of acute inflammation

A novel NIR dye for in vivo temporal tracking of labeled macrophages to sites of acute inflammation

PDF 689 KB
Non-Invasive Quantitative Tomography of Disease Progression and Therapeutic Response

We have demonstrated the ability of our Fluorescence Tomography (FMT 2500) in vivo imaging system and ProSense 680 to non-invasively visualize and quantify inflammation in the lung in a robust and validated manner. The consistency of the quantitative tomography, as well as its excellent correlation with BAL assessment of eosinophilia, provide a powerful toolkit for quantifying the therapeutic efficacy of dexamethasone treatment. Utilizing new and existing imaging agents, FMT imaging in asthma research provides useful, non-invasive tools for understanding pulmonary inflammation and for developing new therapeutics in vivo.

PDF 581 KB

Technical Note

Cat B 680 FAST (Protocol)


PDF 252 KB
Cat B 680 FAST™ (Data Sheet)

Cat B 680 FAST™ is a member of a family of activatable fluorescent imaging agents comprising a novel architecture, termed F.A.S.T. (Fluorescent Activatable Sensor Technology) that confers an improved pharmacokinetic profile with a broader range of early imaging time points.

PDF 192 KB

White Paper

The Role of In Vivo Imaging in Drug Discovery and Development

The primary goal of preclinical imaging is to improve the odds of clinical success and reduce drug discovery and development time and costs. Advances in non-invasive in vivo imaging techniques have raised the use of animal models in drug discovery and development to a new level by enabling quick and efficient drug screening and evaluation. Read this White Paper to learn how preclinical in vivo imaging helps to ensure that smart choices are made by providing Go/No-Go decisions and de-risking drug candidates early on, significantly reducing time to the clinic and lowering costs all while maximizing biological understanding.

PDF 547 KB