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. 2020 Jul 14;29:0963689720923578. doi: 10.1177/0963689720923578

Table 1A.

Treg Phenotype at Harvest in Diffusion-Based Flask and Perfusion-Based Quantum System Cell Culture.

Treg source Flask
CD4+CD25+FoxP3+
Treg frequency (%)
Quantum system
CD4+CD25+FoxP3+
Treg frequency (%)
Donor 1 84.1 81.7
Donor 2 75.6 77.0
Donor 3 69.9 82.2
Mean 76.5 80.3
s.e.m. 4.1 1.7

Mean Treg frequency with s.e.m. CD4, CD25: clusters of differentiation 4 and 25; FoxP3: forkhead box protein P3; s.e.m.: standard error of the mean; Tregs: regulatory T cells.