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A Colorimetric Assay that Specifically Measures Granzyme B Proteolytic Activity: Hydrolysis of Boc-Ala-Ala-Asp-S-Bzl
Published on: November 28, 2014
Non-apoptotic functions of granzymes
1Department of Cellular Biology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, México City, Mexico.
Tissue Antigens
|March 12, 2008
Summary
Granzymes, proteases from cytotoxic lymphocytes, induce cell death but also have non-apoptotic functions. These granule enzymes exhibit direct antiviral activity and extracellular effects in inflammation and disease.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- Granzymes are proteases released by cytotoxic lymphocytes.
- Their primary known function is inducing target cell death to combat viral infections and cancer.
Purpose of the Study:
- To review the known substrates of granzymes.
- To discuss proposed non-apoptotic functions of granzymes, particularly within the target cell.
Main Methods:
- Literature review of existing research on granzyme function.
- Analysis of studies investigating granzyme substrates and non-death-related activities.
Main Results:
- Granzymes possess non-death-related functions beyond apoptosis induction.
- Evidence suggests direct antiviral activities via cleavage of viral and host proteins.
- Extracellular granzyme activity is implicated in inflammatory diseases and tumor rejection.
Conclusions:
- Granzymes have diverse roles beyond inducing cell death.
- Understanding these non-apoptotic functions is crucial for comprehending their role in immunity and disease pathogenesis.
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