Page 137 - Live-cellanalysis handbook

IncuCyte Cytotoxicity Assay
®

For the fluorescent quantification of cell death

This protocol provides an overview of the IncuCyte® Cytotoxicity
Assay methodology which uses the mix-and-read IncuCyte® Green Required materials
or Red Reagent to detect cell death in real time. The protocol is • IncuCyte® Red Cytotoxicity Reagent
compatible with the IncuCyte® live-cell analysis system and your (EssenBioscience Cat #4632)
choice of cells (e.g., tumor, immune, neuronal) and treatments.
Furthermore, this protocol can be used with cells labeled using or
the IncuCyte® NucLight nuclear labeling reagents to provide • IncuCyte® Green Cytotoxicity Reagent
multiplexed measurements of proliferation alongside cell death in (EssenBioscience Cat #4633)
the same well. • Poly-L-ornithine (Sigma P4957)
– optional, for non-adherent cells
• Fibronectin (Sigma F1141)
General guidelines - optional, for non-adherent cells
• Flat bottom tissue culture plate (e.g., Corning 3595,
• We recommend medium with low levels of riboflavin to reduce TPP 92096 for neuronal cell health)
the green fluorescence background. EBM, F12-K, and Eagles
MEM have low riboflavin (<0.2 mg/L). DMEM and RPMI have
high riboflavin (>0.2 mg/L).
• Following cell seeding, place plates at ambient temperature (15
minutes for adherent cell lines and 45 minutes for nonadherent cell lines) to ensure homogenous cell settling.
• Remove bubbles from all wells by gently squeezing a wash bottle (containing 70-100% ethanol with the inner straw removed) to blow
vapor over the surface of each well.
• After placing the plate in the IncuCyte® live-cell analysis system, allow the plate to warm to 37°C for 30 minutes prior to scanning
• If monitoring cytotoxcity in primary neuronal cultures, we recommend use of the IncuCyte® Cytotox Red reagent to eliminate risk of
green channel excitation issues in these sensitive cell types.

Adherent cell line protocol

Prepare cytotoxicity Live cell
1 Seed cells 2 3
reagent and treat cells fluorescent analysis

Seed cells (100 μL/well, 1,000— Prepare the desired treatments Capture images every 2-3
5,000) into a 96-well plate and at 1x in medium containing hours (20x or 10x) in the
incubate overnight. IncuCyte Cytotoxicity reagent. IncuCyte® System. Analyze
Aspirate media from wells and using integrated software.
add treatment (100 μL/well).

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