The fluorometric microculture cytotoxicity assay

Area of Science:

• Biochemistry
• Cell Biology
• Pharmacology

Background:

• The fluorometric microculture cytotoxicity assay (FMCA) is a cell viability assay.
• It measures the cytotoxic and cytostatic effects of compounds in vitro.
• The assay relies on esterase activity within cells with intact membranes.

Purpose of the Study:

• To describe the FMCA protocol for assessing compound effects on cell viability.
• To highlight its adaptability for drug screening and personalized cancer therapy.
• To detail its application for both cell lines and primary patient tumor cells.

Main Methods:

• Utilizes fluorescein diacetate (FDA) hydrolysis by cellular esterases.
• Performed in 96-well or 384-well microplates, adaptable to automation.
• Involves seeding cells on pre-prepared drug-containing plates and evaluating viability after 72 hours.

Main Results:

• The FMCA provides a reliable measure of compound-induced cytotoxicity and cytostasis.
• The assay is suitable for both established cell lines and primary tumor cells.
• It can be implemented in semiautomated or fully automated robotic systems.

Conclusions:

• FMCA is a versatile tool for in vitro drug efficacy assessment.
• It supports drug development screening and the individualization of anticancer drug treatment.
• The assay's adaptability makes it valuable for diverse research and clinical applications.