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Article
Immunology
Pengfei Wang et al.
Summary: The development of potent and broad-spectrum antiviral therapeutics and vaccines is crucial in dealing with highly pathogenic human coronaviruses and their evolving variants. Monoclonal antibody 2-36, isolated from COVID-19-convalescent patients, has been found to cross-neutralize SARS-CoV and other coronaviruses. The cryo-EM structure of 2-36 with SARS-CoV-2 and SARS-CoV spike reveals a conserved epitope in the receptor-binding domain (RBD). This antibody can neutralize various SARS-CoV-2 variants, as well as bat and pangolin sarbecoviruses that use human ACE2 as a receptor.
EMERGING MICROBES & INFECTIONS
(2022)
Review
Biochemistry & Molecular Biology
Alessandro Sette et al.
Summary: The adaptive immune system, consisting of B cells, CD4(+) T cells, and CD8(+) T cells, plays varying roles in different viral infections and vaccines. Studies are showing that CD4(+) T cells, CD8(+) T cells, and neutralizing antibodies all play a part in controlling SARS-CoV-2 in COVID-19 cases, emphasizing the importance of understanding adaptive immunity in combating the disease.
Article
Multidisciplinary Sciences
Christian Gaebler et al.
Summary: After infection with SARS-CoV-2, antibody levels against the spike protein decrease significantly, but the number of memory B cells remain unchanged, indicating an evolving humoral response at 6.2 months after infection.
Article
Biochemistry & Molecular Biology
Wilfredo F. Garcia-Beltran et al.
Summary: New variants of SARS-CoV-2 show high resistance to vaccine neutralization, with some able to escape vaccine responses with just a few mutations, highlighting the importance of developing broadly protective measures against variants.
Article
Microbiology
Allison J. Greaney et al.
Summary: The evolution of SARS-CoV-2 may impact the recognition of the virus by human antibody-mediated immunity, with mutations affecting antibody binding varying significantly among individuals and within the same individual over time. Despite this variability, mutations that greatly reduce antibody binding usually occur at specific sites in the RBD, with E484 being the most crucial. These findings can inform surveillance efforts for SARS-CoV-2 evolution in the future.
CELL HOST & MICROBE
(2021)
Article
Medicine, General & Internal
Yair Goldberg et al.
Summary: The immunity against the delta variant of SARS-CoV-2 waned in all age groups in Israel a few months after receiving the second dose of the vaccine, leading to an increase in infection and severe cases.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Medicine, General & Internal
Anil Gupta et al.
Summary: In this study, among nonhospitalized patients with symptomatic Covid-19, sotrovimab treatment significantly reduced the risk of disease progression leading to hospitalization or death compared to placebo. Patients receiving sotrovimab also had a lower rate of serious adverse events.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Multidisciplinary Sciences
Rishi R. Goel et al.
Summary: This study found that immune memory to SARS-CoV-2 and its variants remains robust for at least 6 months after mRNA vaccination, with antibodies declining but still detectable in most individuals. mRNA vaccines also induced functional memory B cells and antigen-specific T cells, with recall responses primarily increasing antibody levels in individuals with preexisting immunity.
Letter
Multidisciplinary Sciences
Lesley Scott et al.
Article
Microbiology
Kanika Vanshylla et al.
Summary: The study reveals a wide spectrum of neutralizing antibody response to SARS-CoV-2, with sustained antibodies in the majority of individuals with mild COVID-19 for up to 10 months after infection.
CELL HOST & MICROBE
(2021)
Letter
Critical Care Medicine
Pinkus Tober-Lau et al.
LANCET RESPIRATORY MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
David S. Khoury et al.
Summary: The level of neutralizing antibodies is closely related to immune protection against COVID-19, playing a crucial role in protecting against detected infection and severe infection. Studies have shown that neutralizing titers will decline over time after vaccination, leading to decreased protection against SARS-CoV-2 infection.
Article
Medicine, General & Internal
S. A. Madhi et al.
Summary: The ChAdOx1 nCoV-19 vaccine did not provide significant protection against mild-to-moderate Covid-19 caused by the B.1.351 variant, with an efficacy of 10.4%. The incidence of serious adverse events was balanced between the vaccine and placebo groups.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Cell Biology
Bryan E. Jones et al.
Summary: LY-CoV555 is a novel neutralizing antibody derived from a convalescent patient with COVID-19, showing high affinity binding, potent inhibition of ACE2 binding, and strong neutralizing activity. This antibody has entered clinical trials and is being evaluated for various COVID-19 prevention and treatment indications.
SCIENCE TRANSLATIONAL MEDICINE
(2021)
Article
Immunology
Frauke Muecksch et al.
Summary: This study examined the development of antibodies following infection with the coronavirus, finding that evolved antibodies had increased affinity and neutralization potency, altered mutational pathways for viral resistance, and restricted neutralization escape options. These findings suggest that increasing antibody diversity through prolonged or repeated antigen exposure may improve protection against diversifying populations of the virus and other pandemic threat coronaviruses.
Article
Microbiology
Anton M. Sholukh et al.
Summary: This study compared five neutralization assays using plasma samples from convalescent individuals with mild to moderate COVID-19. The cell-based assays showed high correlation and can be used for valid cross-study comparisons.
JOURNAL OF CLINICAL MICROBIOLOGY
(2021)
Article
Multidisciplinary Sciences
Delphine Planas et al.
Summary: The SARS-CoV-2 B.1.617 Delta variant, first identified in India in 2020, has become dominant in some regions and is spreading to many countries. This variant shows resistance to certain monoclonal antibodies and antibodies in convalescent sera, as well as reduced neutralization by some COVID-19 vaccines. Administration of two doses of the vaccine is needed for a neutralizing response against the Delta variant.
Article
Multidisciplinary Sciences
Jackson S. Turner et al.
Summary: SARS-CoV-2 mRNA vaccines induce a persistent germinal centre B cell response in humans, leading to the generation of robust humoral immunity, especially more significant in individuals previously infected with the virus.
Article
Multidisciplinary Sciences
Fabian Schmidt et al.
Summary: The number and variability of neutralizing epitopes targeted by polyclonal antibodies in individuals who have recovered from SARS-CoV-2 or been vaccinated play a crucial role in determining the breadth of neutralization and the genetic barrier to viral escape. Studying HIV-1 pseudotypes and plasma selection experiments, it was found that human polyclonal antibodies target multiple neutralizing epitopes within and outside the receptor-binding domain, and antibody targets coincide with spike sequences enriched for diversity in natural SARS-CoV-2 populations. Combining plasma-selected spike substitutions led to the generation of 'polymutant' spike protein pseudotypes that resist neutralization by polyclonal antibodies to a similar extent as circulating variants of concern. Plasma from individuals who had been infected with SARS-CoV-2 and subsequently received mRNA vaccination was able to neutralize highly resistant SARS-CoV-2 variants, suggesting that optimally elicited polyclonal antibodies can provide protection against future SARS-CoV-2 variations and potential sarbecovirus pandemics.
Article
Medicine, General & Internal
M. P. O'Brien et al.
Summary: The study indicates that subcutaneous REGEN-COV can effectively prevent severe Covid-19 and reduce the duration of symptoms in individuals at high risk for infection due to household exposure to confirmed SARS-CoV-2 cases.
NEW ENGLAND JOURNAL OF MEDICINE
(2021)
Article
Virology
Sandro Halwe et al.
Summary: DZIF-10c is a highly potent fully human monoclonal neutralizing antibody against SARS-CoV-2, with the ability to effectively neutralize the virus and eliminate infectious particles in the lungs when administered intranasally. Its favorable pharmacokinetic profile makes it a promising candidate for clinical trials investigating topical delivery of anti-SARS-CoV-2 antibodies.
Article
Virology
Katharine H. D. Crawford et al.
Article
Multidisciplinary Sciences
Rui Shi et al.
Article
Multidisciplinary Sciences
Bin Ju et al.
Article
Multidisciplinary Sciences
Dora Pinto et al.
Article
Biochemistry & Molecular Biology
Christoph Kreer et al.
Article
Multidisciplinary Sciences
Davide F. Robbiani et al.
Article
Multidisciplinary Sciences
Johanna Hansen et al.
Review
Multidisciplinary Sciences
Florian Krammer
