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2020 ; 368
(6496
): 1274-1278
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
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English Wikipedia
A noncompeting pair of human neutralizing antibodies block COVID-19 virus binding
to its receptor ACE2
#MMPMID32404477
Wu Y
; Wang F
; Shen C
; Peng W
; Li D
; Zhao C
; Li Z
; Li S
; Bi Y
; Yang Y
; Gong Y
; Xiao H
; Fan Z
; Tan S
; Wu G
; Tan W
; Lu X
; Fan C
; Wang Q
; Liu Y
; Zhang C
; Qi J
; Gao GF
; Gao F
; Liu L
Science
2020[Jun]; 368
(6496
): 1274-1278
PMID32404477
show ga
Neutralizing antibodies could potentially be used as antivirals against the
coronavirus disease 2019 (COVID-19) pandemic. Here, we report isolation of four
human-origin monoclonal antibodies from a convalescent patient, all of which
display neutralization abilities. The antibodies B38 and H4 block binding between
the spike glycoprotein receptor binding domain (RBD) of the virus and the
cellular receptor angiotensin-converting enzyme 2 (ACE2). A competition assay
indicated different epitopes on the RBD for these two antibodies, making them a
potentially promising virus-targeting monoclonal antibody pair for avoiding
immune escape in future clinical applications. Moreover, a therapeutic study in a
mouse model validated that these antibodies can reduce virus titers in infected
lungs. The RBD-B38 complex structure revealed that most residues on the epitope
overlap with the RBD-ACE2 binding interface, explaining the blocking effect and
neutralizing capacity. Our results highlight the promise of antibody-based
therapeutics and provide a structural basis for rational vaccine design.
|Angiotensin-Converting Enzyme 2
[MESH]
|Animals
[MESH]
|Antibodies, Monoclonal/immunology/isolation & purification/therapeutic use
[MESH]
|Antibodies, Neutralizing/immunology/isolation & purification/*therapeutic use
[MESH]
|Antibodies, Viral/immunology/isolation & purification/*therapeutic use
[MESH]