ppat.1009165.s008.tif (7.79 MB)

mAb inhibition of SARS-CoV-2 RBD binding to hACE2-expressing cells.

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posted on 2021-02-11, 18:28 authored by Michael Mor, Michal Werbner, Joel Alter, Modi Safra, Elad Chomsky, Jamie C. Lee, Smadar Hada-Neeman, Ksenia Polonsky, Cameron J. Nowell, Alex E. Clark, Anna Roitburd-Berman, Noam Ben-Shalom, Michal Navon, Dor Rafael, Hila Sharim, Evgeny Kiner, Eric R. Griffis, Jonathan M. Gershoni, Oren Kobiler, Sandra Lawrynowicz Leibel, Oren Zimhony, Aaron F. Carlin, Gur Yaari, Moshe Dessau, Meital Gal-Tanamy, David Hagin, Ben A. Croker, Natalia T. Freund

(A) Flow cytometry plots showing hACE2-expressing cells stained with RBD-PE (“no Ab”, left) and unstained hACE2-expressing cells (right). (B) Anti-SARS-CoV-2 mAbs were pre-incubated with RBD-PE followed by incubation with hACE2-expressing cells. Unlabeled RBD was used as a positive control, and mGO53 as a negative control [42]. The frequencies of PE positive cells are indicated. (C) Mean fluorescence intensity (MFI) of RBD-PE stained hACE2-expressing cells identified by flow cytometry in the presence of mAbs (mAbs that reduced RBD-PE staining are marked with black arrows).

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