Ratiometric Barcoding for Mass Cytometry

Autor: Xu Wu, William W. Kwok, I-Che Wu, Daniel T. Chiu, Li Wu, Quinn DeGottardi, Jiangbo Yu
Rok vydání: 2018
Předmět:
Zdroj: Analytical chemistry. 90(18)
ISSN: 1520-6882
Popis: Barcoding is of importance for high-throughput cellular and molecular analysis. A ratiometric barcoding strategy using lanthanides-coordinated polymer dots (Ln-Pdots) was developed for mass cytometric analysis. By using three metal isotopes and four ratio intensity levels, 16 barcodes were generated to code, and later decode, cell samples in mass cytometry. The ratiometric Ln-Pdots barcodes not only provided high mass signal intensities, but also eliminated the bias caused by different concentrations of the labeling reagents/barcodes and run- to-run differences in cell labeling efficiency. The ability to distinguish clearly the 16 sets of labeled MCF-7 cells with mass cytometry demonstrated the excellent resolving power of the ratiometric Ln-Pdots barcodes. Furthermore, the results from barcoding PBMCs samples via CD45 specific cellular targeting indicated that the ratiometric Ln-Pdots barcodes could facilitate mass cytometry in high-throughput and multiplexed analysis, especially with precious human samples.
Databáze: OpenAIRE