Supplementary Figure S13 from Dissecting the mechanisms underlying the Cytokine Release Syndrome (CRS) mediated by T Cell Bispecific Antibodies

Supplementary Figure S13. A. 3D in vitro experimental setup. Human PBMCs and SU-DHL-8 tumor cells were co-cultured in a ratio of 5:1 and treated with 0.01 nM CD20-TCB in the presence or absence of 5 μg/mL adalimumab for 24 hrs. Supernatant from the co-cultures was transferred to the bottom channel of the Mimetas OrganoPlate®. PBMCs derived from the same donor as in the co-cultures, are fluorescently labeled and seeded in the upper channel of the Mimetas OrganoPlate®, where endothelial tubules have been previously formed. Mimetas OrganoPlate® are then imaged with the Operetta System to quantify fluorescent cell transmigration at 24 hrs. B. Shown is the cell migration towards cytokine-rich supernatants in the Mimetas OrganoPlate®. TNF-α pretreatment of the endothelial tubule is a positive control. Means of technical replicates from 2 independent experiment +/- SD with ****p<0.0001, **p<0.001 by 2 way ANOVA.