Antibody cocktail to SARS-CoV-2 spike protein prevents rapid mutational escape seen with individual antibodies.
Alina Baum,Benjamin O. Fulton,Elzbieta Wloga,Richard Copin,Kristen E. Pascal,Vincenzo Russo,Stephanie Giordano,Kathryn Lanza,Nicole Negron,Min Ni,Yi Wei,Gurinder S. Atwal,Andrew J. Murphy,Neil Stahl,George D. Yancopoulos,Christos A. Kyratsous +15 more
TLDR
This work investigated the development of resistance against four antibodies to the spike protein that potently neutralize SARS-CoV-2, individually as well as when combined into cocktails.Abstract:
Antibodies targeting the spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) present a promising approach to combat the coronavirus disease 2019 (COVID-19) pandemic; however, concerns remain that mutations can yield antibody resistance. We investigated the development of resistance against four antibodies to the spike protein that potently neutralize SARS-CoV-2, individually as well as when combined into cocktails. These antibodies remain effective against spike variants that have arisen in the human population. However, novel spike mutants rapidly appeared after in vitro passaging in the presence of individual antibodies, resulting in loss of neutralization; such escape also occurred with combinations of antibodies binding diverse but overlapping regions of the spike protein. Escape mutants were not generated after treatment with a noncompeting antibody cocktail.read more
Citations
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Journal ArticleDOI
Targeting multiple epitopes on the spike protein: a new hope for COVID-19 antibody therapy
TL;DR: Antibody cocktail to SARS-CoV-2 spike protein prevents rapid mutational escape seen with individual antibodies, and a new hope for COVID-19 antibody therapy.
Posted ContentDOI
Computational prediction of the effect of amino acid changes on the binding affinity between SARS-CoV-2 spike protein and the human ACE2 receptor
Chixiang Chen,Veda Sheersh Boorla,Dishary Banerjee,Ratul Chowdhury,Victoria S. Cavener,Ruth H. Nissly,Abhinay Gontu,Nina R. Boyle,Vandergrift K,Meera Surendran Nair,Suresh V. Kuchipudi,Costas D. Maranas +11 more
TL;DR: In this article, a two-step framework was proposed to predict the effect of amino acid changes in the ability of the receptor binding domain (RBD) to interact more strongly with the human angiotensin converting enzyme (hACE2) to assess the public health implications and the potential for spillover and adaptation into other animals.
Journal ArticleDOI
Fighting SARS-CoV-2 with green seaweed Ulva sp. extract: extraction protocol predetermines crude ulvan extract anti-SARS-CoV-2 inhibition properties in in vitro Vero-E6 cells assay.
Shai Shefer,Arthur Robin,Alexander Chemodanov,Mario Lebendiker,Robert Bostwick,Lynn Rasmussen,Michael Lishner,Michael Gozin,Alexander Golberg +8 more
TL;DR: In this article, the authors compared chemical composition and the in vitro anti-SARS-COV-2 activity of two different Ulva sp. crude ulvan extracts: one obtained by an HCl-based and another one by ammonium oxalate-based (AOx) extraction protocols.
Journal ArticleDOI
Outsmarting SARS-CoV-2 by empowering a decoy ACE2.
TL;DR: Along with the current efforts to develop high-affinity neutralizing antibodies, Kui Chan and colleagues engineered the soluble variant of human ACE2 with enhanced binding to the spike protein, outranking the soluble wild-type protein in blocking SARS-CoV-2 infection in vitro.
Journal ArticleDOI
Modelling the association between COVID-19 transmissibility and D614G substitution in SARS-CoV-2 spike protein: using the surveillance data in California as an example.
Shi Zhao,Jingzhi Lou,Lirong Cao,Hong Zheng,Marc K. C. Chong,Zigui Chen,Benny Zee,Paul K.S. Chan,Maggie Haitian Wang +8 more
TL;DR: In this article, the authors developed a statistical framework to explore the association between molecular-level mutation activity of SARS-CoV-2 and population-level disease transmissibility of COVID-19.
References
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Structural basis for the recognition of SARS-CoV-2 by full-length human ACE2.
TL;DR: Cryo–electron microscopy structures of full-length human ACE2 in the presence of the neutral amino acid transporter B0AT1 with or without the receptor binding domain (RBD) of the surface spike glycoprotein of SARS-CoV-2 are presented, providing important insights into the molecular basis for coronavirus recognition and infection.
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TL;DR: The crystal structure of the C-terminal domain of SARS-CoV-2 (SARS- coV- 2-CTD) spike (S) protein in complex with human ACE2 (hACE2) is presented, which reveals a hACE2-binding mode similar overall to that observed for SARS -CoV.
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Convergent antibody responses to SARS-CoV-2 in convalescent individuals.
Davide F. Robbiani,Davide F. Robbiani,Christian Gaebler,Frauke Muecksch,Julio C. C. Lorenzi,Zijun Wang,Alice Cho,Marianna Agudelo,Christopher O. Barnes,Anna Gazumyan,Shlomo Finkin,Thomas Hagglof,Thiago Y. Oliveira,Charlotte Viant,Arlene Hurley,Hans Heinrich Hoffmann,Katrina G. Millard,Rhonda G. Kost,Melissa Cipolla,Kristie Gordon,Filippo Bianchini,Spencer T. Chen,Victor A. Ramos,Roshni Patel,Juan Dizon,Irina Shimeliovich,Pilar Mendoza,Harald Hartweger,Lilian Nogueira,Maggi Pack,Jill Horowitz,Fabian Schmidt,Yiska Weisblum,Eleftherios Michailidis,Alison W. Ashbrook,Eric Waltari,John E. Pak,Kathryn E. Huey-Tubman,Nicholas Koranda,Pauline R. Hoffman,Anthony P. West,Charles M. Rice,Theodora Hatziioannou,Pamela J. Bjorkman,Paul D. Bieniasz,Paul D. Bieniasz,Marina Caskey,Michel C. Nussenzweig,Michel C. Nussenzweig +48 more
TL;DR: Most convalescent plasma samples obtained from individuals who recover from COVID-19 do not contain high levels of neutralizing activity, and rare but recurring RBD-specific antibodies with potent antiviral activity were found in all individuals tested, suggesting that a vaccine designed to elicit such antibodies could be broadly effective.
Journal ArticleDOI
Cross-neutralization of SARS-CoV-2 by a human monoclonal SARS-CoV antibody.
Dora Pinto,Young-Jun Park,Martina Beltramello,Alexandra C. Walls,M. Alejandra Tortorici,M. Alejandra Tortorici,Siro Bianchi,Stefano Jaconi,Katja Culap,Fabrizia Zatta,Anna De Marco,Alessia Peter,Barbara Guarino,Roberto Spreafico,Elisabetta Cameroni,James Brett Case,Rita E. Chen,Colin Havenar-Daughton,Gyorgy Snell,Amalio Telenti,Herbert W. Virgin,Antonio Lanzavecchia,Michael S. Diamond,Katja Fink,David Veesler,Davide Corti +25 more
TL;DR: Several monoclonal antibodies that target the S glycoprotein of SARS-CoV-2, which was identified from memory B cells of an individual who was infected with severe acute respiratory syndrome coronavirus (SARS- coV) in 2003, and one antibody (named S309) potently neutralization, which may limit the emergence of neutralization-escape mutants.
Journal ArticleDOI
Potent Neutralizing Antibodies against SARS-CoV-2 Identified by High-Throughput Single-Cell Sequencing of Convalescent Patients' B Cells.
Y Cao,Bin Su,Xianghua Guo,Wenjie Sun,Yong-Qiang Deng,Linlin Bao,Qinyu Zhu,Xu Zhang,Yinghui Zheng,Chenyang Geng,Xiaoran Chai,Runsheng He,Xiaofeng Li,Qi Lv,Hua Zhu,Wei Deng,Yanfeng Xu,Yanjun Wang,Luxin Qiao,Yafang Tan,Liyang Song,Guopeng Wang,Xiao-Xia Du,Ning Gao,Jiangning Liu,Junyu Xiao,Xiao-Dong Su,Zongmin Du,Yingmei Feng,Chuan Qin,Cheng-Feng Qin,Ronghua Jin,X. Sunney Xie +32 more
TL;DR: It is shown that human neutralizing antibodies could be efficiently discovered by high-throughput single B-cell sequencing in response to pandemic infectious diseases.
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