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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Exp+Med 2020 ; 217 (11): ä Nephropedia Template TP
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Measuring SARS-CoV-2 neutralizing antibody activity using pseudotyped and chimeric viruses #MMPMID32692348
Schmidt F; Weisblum Y; Muecksch F; Hoffmann HH; Michailidis E; Lorenzi JCC; Mendoza P; Rutkowska M; Bednarski E; Gaebler C; Agudelo M; Cho A; Wang Z; Gazumyan A; Cipolla M; Caskey M; Robbiani DF; Nussenzweig MC; Rice CM; Hatziioannou T; Bieniasz PD
J Exp Med 2020[Nov]; 217 (11): ä PMID32692348show ga
The emergence of SARS-CoV-2 and the ensuing explosive epidemic of COVID-19 disease has generated a need for assays to rapidly and conveniently measure the antiviral activity of SARS-CoV-2-specific antibodies. Here, we describe a collection of approaches based on SARS-CoV-2 spike-pseudotyped, single-cycle, replication-defective human immunodeficiency virus type-1 (HIV-1), and vesicular stomatitis virus (VSV), as well as a replication-competent VSV/SARS-CoV-2 chimeric virus. While each surrogate virus exhibited subtle differences in the sensitivity with which neutralizing activity was detected, the neutralizing activity of both convalescent plasma and human monoclonal antibodies measured using each virus correlated quantitatively with neutralizing activity measured using an authentic SARS-CoV-2 neutralization assay. The assays described herein are adaptable to high throughput and are useful tools in the evaluation of serologic immunity conferred by vaccination or prior SARS-CoV-2 infection, as well as the potency of convalescent plasma or human monoclonal antibodies.