R-Phycoerythrin (concentrated solution)

R-Phycoerythrin (10-100 μM, 4 h) is cytotoxic to S180 in a concentration-dependent manner (58%)^[2].

Guide (The following is our recommended protocol. This protocol is only a guide and should be modified according to your specific needs).
Specific steps^[2]:
1. Cell treatment and staining
1.1 S180 and SMC7721 cancer cells were cultured in RPMI1640 medium containing 10% fetal bovine serum and 1% penicillin/streptomycin to the logarithmic growth phase (37°C, 5% CO₂, 95% air humidity).
1.2 The cells were seeded at a density of approximately 5 × 10⁵/mL in serum-free RPMI1640 medium and incubated with different concentrations of R-Phycoerythrin (10, 25, 50, 100 μM) for 4 hours.
2. Light treatment
2.1 Use 496 nm argon laser to excite R-Phycoerythrin, β subunit, γ subunit, and 514 nm to excite α subunit.
2.2 Change to RPMI1640 medium containing 10% serum and continue incubation for 18 hours.
2.3 Use MTT method to detect the survival rate of S180 cells.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.