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Updated: Aug 20, 2026

Measuring Caspase Activity Using a Fluorometric Assay or Flow Cytometry
Published on: March 24, 2023
Caspases: potential targets for regulating cell death
1Mechanisms of Leukemogenesis Laboratory, R.E. Kavetsky Institute of Experimental Pathology, Oncology, and Radiobiology, Vasilkovskaya Str. 45, 03022 Kiev, Ukraine. apoclub@mail.ru
Abstract:
While in multicellular organisms all cells inexorably die, there are several different ways provided for the realization of cell death. One of them, apoptosis, represents a universal energy-dependent and tightly regulated physiologic process of cell death in both normal and pathologic tissues. The execution of apoptosis appears to be uniformly mediated through consecutive activation of the members of a caspase family. This review briefly summarizes current knowledge on the molecular mechanisms of caspase activation and the inhibitory components of caspase cascades. The suitability of caspases as a new potential therapeutic target is discussed next. Particular attention is focused on two broad categories of caspase-directed compounds: highly specific caspase inhibitors that distinctly block the progress of apoptosis and caspase activators that selectively induce cell death in a variety of in vitro and in vivo systems. These agents promise to be useful clinically, either alone or in combination with more conventional therapeutics.
Insights
Apoptosis is a regulated cell death process mediated by caspases. This review explores caspase activation, inhibition, and therapeutic potential using caspase inhibitors and activators for clinical applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Cell death is a fundamental process in multicellular organisms.
- Apoptosis is a regulated, energy-dependent form of physiological cell death.
- Caspases are key enzymes mediating the execution of apoptosis.
Purpose of the Study:
- To review molecular mechanisms of caspase activation and inhibition.
- To discuss the therapeutic potential of targeting caspases.
- To highlight caspase-directed compounds for clinical use.
Main Methods:
- Review of current scientific literature on apoptosis and caspases.
- Analysis of molecular mechanisms of caspase cascade activation.
- Examination of inhibitory components regulating caspase activity.
Main Results:
- Caspase activation is a central, conserved pathway in apoptosis.
- Specific caspase inhibitors can block apoptosis progression.
- Caspase activators can selectively induce cell death.
Conclusions:
- Caspases represent a promising therapeutic target for various diseases.
- Caspase inhibitors and activators show potential for clinical application.
- These agents may be used alone or in combination with existing therapies.
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