Teiko announced new validation data demonstrating that blood samples collected with TokuKit and stored at –80°C maintain stable immune cell frequencies and preserve both surface and intracellular protein expression for at least two years. These results confirm that the immune cell biology captured at the time of collection remains intact and reproducible, whether samples are processed within days or years later.
Cytometry has traditionally required rapid processing—often within 24 to 72 hours—to preserve cell counts, frequencies, and protein expression. Missed processing windows often lead to data loss, inconclusive PK/PD readouts, and an inability to delineate mechanism, correlates, and predictors of outcomes in clinical trials.
TokuKit removes the constraints of the “live 24-hour” processing window.
Across major immune populations, samples processed after one week and after 24 months showed R > 0.99 correlation.
.png)
