Multiple SARS-CoV-2 variants escape neutralization by vaccine-induced humoral immunity.
Wilfredo F. Garcia-Beltran,Wilfredo F. Garcia-Beltran,Evan C. Lam,Kerri St. Denis,Adam Nitido,Zeidy H. Garcia,Blake M. Hauser,Jared Feldman,Maia N. Pavlovic,David Gregory,Mark C. Poznansky,Alex Sigal,Alex Sigal,Aaron G. Schmidt,A. John Iafrate,Vivek Naranbhai,Vivek Naranbhai,Alejandro B. Balazs +17 more
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In this article, the authors evaluated the neutralization potency of 99 individuals that received one or two doses of either BNT162b2 or mRNA-1273 vaccines against pseudoviruses representing 10 globally circulating strains of SARS-CoV-2.About:
This article is published in Cell.The article was published on 2021-04-29 and is currently open access. It has received 1109 citations till now. The article focuses on the topics: Vaccination & Humoral immunity.read more
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Crystal structure and activity profiling of deubiquitinating inhibitors-bound to SARS-CoV-2 papain like protease revealed new allosteric sites for antiviral therapies
Shweta Choudhary,Sanketkumar Nehul,K. Amith Kumar,Swati Sharma,Ruchi Rani,Ankita Saha,G. Sharma,Shailly Tomar,Pravindra Kumar +8 more
TL;DR: In this paper , five promising compounds exhibiting high binding affinities with the substrate binding site of PLpro were identified from a library of 81 compounds with in silico screening, docking, and simulation studies.
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Evolutionary progression of collective mutations in Omicron sub-lineages towards efficient RBD-hACE2: Allosteric communications between and within viral and human proteins
TL;DR: In this paper , the collective effects of mutations in each of the Omicron sub-lineages (BA.1, BA.2 and BA.3) on both the viral S protein receptor binding domain (RBD) and the hACE2 protein using post molecular dynamics studies and dynamic residue network (DRN) analysis were systematically characterized.
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Evaluation of antibody response to SARS-CoV-2 variants after 2 doses of mRNA COVID-19 vaccine in a correctional facility
Claudia Maria Trombetta,Serena Marchi,Margherita Leonardi,Angela Stufano,Eleonora Lorusso,Emanuele Montomoli,Nicola Decaro,Nicola Buonvino,Piero Lovreglio +8 more
TL;DR: In this paper , the antibody-mediated immune response in terms of neutralizing antibodies against Alpha, Beta, Gamma and Omicron (sub-lineage BA) variants of concern after two doses of mRNA vaccine in correctional officers and inmates from an Italian correctional facility.
Journal ArticleDOI
Antibodies Induced by Homologous or Heterologous Inactivated (CoronaVac/BBIBP-CorV) and Recombinant Protein Subunit Vaccines (ZF2001) Dramatically Enhanced Inhibitory Abilities against B.1.351, B.1.617.2, and B.1.1.529 Variants
Xuesong Xu,Y. D. Hong,Erjing Chen,Yaping Wang,Biao Ma,Jiali Li,Wei Su,Yuxin Zhou,Mingzhou Zhang +8 more
Abstract: Safe and effective vaccines for Corona Virus Disease 2019 (COVID-19) can prevent the virus from infecting human populations and treat patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In this study, we discuss the inhibitory abilities of primary and booster vaccine-induced antibodies inhibitory ability toward the SARS-CoV-2 wild-type strain, as well as B.1.1.7, B.1.351, P.1, B.1.617.2, and B.1.1.529. We confirmed these antibodies had the strongest inhibitory effects on the wild-type strain and cross-inhibition activities against other mutant strains after two inactivated vaccine doses. However, the B.1.351, B.1.617.2 and B.1.1.529 mutants exhibit antibody resistance in the vaccine serum. Antibodies induced by homologous inactivated vaccines (n = 92) presented more effective inhibition against tested SARS-CoV-2 strains (p < 0.0001), especially B.1.351, B.1.617.2, and B.1.1.529 mutant strains, which had strong immune escape characteristics. In addition, a heterologous booster vaccination (n = 50) of a protein subunit vaccine ZifiVax (ZF2001) significantly restored humoral immune responses and even showed an increasing response against wild-type, B.1.351, B.1.617.2, and B.1.1.529 than homologous inactivated vaccines. Our analysis of the humoral immune response elicited by the different vaccine regimens, including inhibiting antibodies, indicated that a booster, whether homologous or heterologous, could be essential for achieving greater efficacy against SARS-CoV-2.
References
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SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor
Markus Hoffmann,Hannah Kleine-Weber,Simon Schroeder,Nadine Krüger,Tanja Herrler,Sandra Erichsen,Tobias S. Schiergens,Georg Herrler,Nai Huei Wu,Andreas Nitsche,Marcel A. Müller,Christian Drosten,Christian Drosten,Stefan Pöhlmann +13 more
TL;DR: It is demonstrated that SARS-CoV-2 uses the SARS -CoV receptor ACE2 for entry and the serine protease TMPRSS2 for S protein priming, and it is shown that the sera from convalescent SARS patients cross-neutralized Sars-2-S-driven entry.
Journal ArticleDOI
Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine.
Fernando P. Polack,Stephen J. Thomas,Nicholas Kitchin,Judith Absalon,Alejandra Gurtman,Stephen Lockhart,John L. Perez,Gonzalo Pérez Marc,Edson D. Moreira,Cristiano Zerbini,Ruth Bailey,Kena A. Swanson,Satrajit Roychoudhury,Kenneth Koury,Ping Li,Warren Kalina,David A. Cooper,Robert W. Frenck,Laura L. Hammitt,Özlem Türeci,Haylene Nell,Axel Schaefer,Serhat Ünal,Dina B. Tresnan,Susan Mather,Philip R. Dormitzer,Ugur Sahin,Kathrin U. Jansen,William C. Gruber +28 more
TL;DR: A two-dose regimen of BNT162b2 conferred 95% protection against Covid-19 in persons 16 years of age or older and safety over a median of 2 months was similar to that of other viral vaccines.
Journal ArticleDOI
Tracking Changes in SARS-CoV-2 Spike: Evidence that D614G Increases Infectivity of the COVID-19 Virus.
Bette T. Korber,Will Fischer,Sandrasegaram Gnanakaran,Hyejin Yoon,James Theiler,Werner Abfalterer,Nick Hengartner,Elena E. Giorgi,Tanmoy Bhattacharya,Brian T. Foley,Kathryn M. Hastie,Matthew Parker,David G Partridge,Cariad Evans,Timothy M. Freeman,Thushan I de Silva,Adrienne Angyal,Rebecca Brown,Laura Carrilero,Luke R. Green,Luke R. Green,Luke R. Green,Danielle C. Groves,Katie Johnson,Alexander J Keeley,Benjamin B Lindsey,Paul J. Parsons,Mohammad Raza,Sarah Rowland-Jones,Nikki Smith,Rachel Tucker,Dennis Wang,Matthew Wyles,Charlene McDanal,Lautaro G. Perez,Haili Tang,Alex Moon-Walker,Alex Moon-Walker,Alex Moon-Walker,Sean P. J. Whelan,Celia C. LaBranche,Erica Ollmann Saphire,David C. Montefiori +42 more
TL;DR: A SARS-CoV-2 variant carrying the Spike protein amino acid change D614G has become the most prevalent form in the global pandemic, and it is found that the G614 variant grows to higher titer as pseudotyped virions.
Journal ArticleDOI
Efficacy and Safety of the mRNA-1273 SARS-CoV-2 Vaccine.
Lindsey R. Baden,Hana M. El Sahly,Brandon Essink,Karen L. Kotloff,Sharon E. Frey,Rick Novak,David Diemert,Stephen A. Spector,Nadine Rouphael,C. Buddy Creech,John W McGettigan,Shishir Khetan,Nathan Segall,Joel Solis,Adam Brosz,Carlos Fierro,Howard J. Schwartz,Kathleen M. Neuzil,Lawrence Corey,Peter B. Gilbert,Holly Janes,Dean Follmann,Mary A. Marovich,John R. Mascola,Laura Polakowski,Julie E. Ledgerwood,Barney S. Graham,Hamilton Bennett,Rolando Pajon,Conor Knightly,Brett Leav,Weiping Deng,Honghong Zhou,Shu Liang Han,Melanie Ivarsson,Jacqueline Miller,Tal Z Zaks +36 more
TL;DR: The mRNA-1273 vaccine as discussed by the authors is a lipid nanoparticle-encapsulated mRNA-based vaccine that encodes the prefusion stabilized full-length spike protein of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes Covid-19.
Journal ArticleDOI
SARS-CoV-2-specific T cell immunity in cases of COVID-19 and SARS, and uninfected controls.
Nina Le Bert,Anthony T. Tan,Kamini Kunasegaran,Christine Y.L. Tham,Morteza Hafezi,Adeline Chia,Melissa Hui Yen Chng,Meiyin Lin,Meiyin Lin,Nicole Tan,Martin Linster,Wan Ni Chia,Mark I-Cheng Chen,Lin-Fa Wang,Eng Eong Ooi,Shirin Kalimuddin,Paul A. Tambyah,Jenny G. Low,Jenny G. Low,Yee-Joo Tan,Yee-Joo Tan,Antonio Bertoletti,Antonio Bertoletti +22 more
TL;DR: Infection with betacoronaviruses induces multi-specific and long-lasting T cell immunity against the structural N protein, and SARS-CoV-2-reactive T cells were found in individuals who had recovered from SARS or COVID-19 and in unexposed donors, although with different patterns of immunoreactivity.
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