Design and characterization of multiparametric and high-throughput
platform based on fBSLBs to study host–virus interactions.
(A) Scheme depicting the bottom-up assembly of fBSLBs and available
readout techniques. (B) LSM maximum-intensity projections of fBSLBs
(magenta, lipid dye ASR-PE) and VLPs (green, EGFP) showing specific
interaction between SARS-CoV-2 Spike VLPs (Sp+VLPs) and
ACE2-fBSLBs. (C) Quantification of viral GFP-signal per fBSLBs of
each condition from panel B shows specific attachment of Sp+VLPs to ACE2-fBSLBs (median = 84.05, N = 11) and
no interaction between Sp–VLPs and ACE2-BSLBs (median
= 2.88, N = 33) and nanobody-pretreated Sp+VLPs and ACE2-BSLBs (Fu2, median = 4.70, N = 52;
Ty1, median = 7.77, N = 20; Ty-Fc, median = 4.41, N = 57). Graph shows representative data of three independent
experiments. Boxplot with overlay of individual data points, median
as black center line, box showing the quartiles and whiskers from
minimum to maximum value. Illustrations were created using Biorender.com and Inkscape.