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9873 documents

Molecular insights into the effects of SARS-Cov2 infection on the blood system

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Naoko Mizuno · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · 2023 · $536,871 — We hypothesize that SARS-Cov2 directly interacts with neutrophils as well as platelets through their receptors, and induces a change in platelet morphology, leading to their activation and coagulation. We performed live imaging showing that platelets are directly activated in the presence of purifie…

The Role of the Scavenger Receptor B Family Proteins (SR-BI, SR-BII and CD36) in Infection and Sepsis

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Thomas Eggerman · CLINICAL CENTER · 2023 — Using human SR-BI (hSR-BI) and human SR-BII (hSR-BII) transgenic mice, we have found that SR-BI and, to a lesser extent, SR-BII protect against bacterial LPS-induced lung damage: At 20 hours after intratracheal LPS instillation, the extent of pulmonary inflammation and vascular leakage was signific…

COVID-19 Sample Collection and Vaccine Studies

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Lesia Dropulic · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · 2023 · $873,600 — This project includes the evaluation of a vaccine candidate targeting SARS-CoV-2, mRNA-1273, that was administered to healthy volunteers in a phase 1 trial (DMID 20-0003). This project also includes the collection of samples for translational immunology research from participants who have been vacci…

Towards high-resolution structural biology of membrane protein complexes in their native lipid environment

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Doreen Matthies · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · 2023 · $3,623,275 — (1) Structure and function of magnesium channel Mrs2 Mrs2 is the eukaryotic homolog of bacterial magnesium channel CorA. CorA forms a homo-pentameric channel which forms a symmetric closed state at normal to high concentrations of magnesium with magnesium binding sites between protomers as well as n…

Development testing of nucleic acid-based vaccine for HIV other indications

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

BARBARA K FELBER · DIVISION OF BASIC SCIENCES - NCI · 2023 · $1,950,208 — The development of a safe and effective vaccine and to improve treatment strategies aiming to reduce/eliminate the virus reservoir are currently at the forefront of our research. Based on our recognition of the fundamental mechanisms of mRNA expression, exemplified by the regulated expression of HIV…

Studies of the SARS-CoV-2 Spike Protein

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

JAY A BERZOFSKY · DIVISION OF BASIC SCIENCES - NCI · 2023 · $2,147,209 — In vivo vaccine studies in macaques and hamsters: Rhesus macaques have been primed IM with S1 spike protein in different adjuvants and boosted systemically with spike in alum or mucosally intranasally with spike in nanoparticles with IL-15 and TLR ligand adjuvants. We have found and published that n…

Development of COVID-19 cell entry inhibitors

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Nadya Tarasova · DIVISION OF BASIC SCIENCES - NCI · 2023 · $40,169 — The reliability, and consequently success of virtual screening depends heavily on the accuracy of the x-ray structure depiction of the target protein structure in solution. Crystal packing can distort conformation of flexible parts of the protein thus leading to misrepresentation of the protein stru…

Host genetic resistance to COVID-19

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Mary N. Carrington · DIVISION OF BASIC SCIENCES - NCI · 2023 · $127,700 — Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the ongoing COVID-19 pandemic. The pandemic's impact has spurred research into the pathogenesis, diagnosis, treatment, and prevention of SARS-CoV-2 and its emerging variants of concern. Prior studies have elucidated the …

Antagonism of Coronavirus Spike Proteins by Cellular Host Factors

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

eric freed · DIVISION OF BASIC SCIENCES - NCI · 2023 · $54,403 — In a structural and functional analysis of the SARS-CoV-2 S protein that we recently started, we have determined that MARCH8, but not a catalytically inactive MARCH8 mutant, targets the S proteins of SARS-CoV, MERS-CoV, and SARS-CoV-2 for degradation. We also showed that human airway epithelial cell…

Pre-existing cross-reactive antibodies to the SARS CoV-2 spike in sera from subjects in developing countries

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

JAMES L ARTHOS · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · 2023 · $109,700 — Intranasal administration led to rapid lung alveolar macrophage uptake, pulmonary vascular leakage, and neutrophil recruitment and damage. Exposure to the spike protein enhanced neutrophil NETosis and augmented human macrophage TNF- and IL-6 production. Human and murine immune cells employed C-type …

Human monoclonal antibodies against SARS-CoV-2

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Joshua Hoong Yu Tan · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · 2023 · $568,478 — The overarching goal of this project is to study the immune response to COVID-19 at the monoclonal level to increase our understanding of basic biology and develop new tools to combat disease. We have screened plasma from >100 acutely infected and convalescent COVID-19 individuals for neutralization…

Generation of Neutralizing Monoclonal Antibodies Against SARS-CoV-2 for Prevention and Therapy in Patients with COVID-19

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Patrizia Farci · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · 2023 · $47,982 — 1. Potent monoclonal antibodies neutralize Omicron sublineages and other SARS-CoV-2 variants A. Generation and characterization of anti-SARS-CoV-2 mAbs using phage-display libraries from COVID-19 convalescent patients. Peripheral blood samples were collected from 12 convalescent COVID-19 patients…

Novel SARS-CoV-2 vaccine candidates: Live, recombinant Leishmania

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

David Sacks · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · 2023 · $114,312 — Our initial experiments involving the transgenic L. major lines overexpressing spike protein, either the full length S gene sequence or secreted S1/S2 subunits, showed that in each case the clones were attenuated in mice. New transgenic lines were generated: the full length S gene sequence was ampl…

Integration of Actin Dynamics and Adhesion in Cell Migration

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Clare Michal Waterman · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · 2023 · $1,036,270 — Project: MARK2/Par1b regulates cytoskeleton polarization and directed cell migration through modulation of Myosin II contractility and focal adhesion organization. Personnel: Ana Pasapera Collaborators: Sarah Heissler, Masumi Eto Goal: We sought to test the hypothesis that MARK2 mediates polariza…

Cross-Protective Humoral Immunity to Coronavirus

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Duane R. Wesemann · BRIGHAM AND WOMEN'S HOSPITAL · 2023 · $3,175,901 — PROJECT 1 SUMMARY Global establishment of Severe Acute Respiratory Syndrome (SARS) Coronavirus (CoV)-2 is a continued human threat. While successful vaccine programs are well underway, genetic drift and immune escape have already begun to subvert immunity. In addition, related zoonotic coronaviruses…

Administrative Core

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Viviana A Simon · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · 2023 · $253,527 — The SARS-CoV-2 pandemic represents an exceptional public health crisis highlighting the need for better understanding of the mechanisms controlling broadly protective immune responses and generating vaccine candidates able to elicit such responses. The program project entitled “Programming Long-last…

Antibody Core

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Ali Hassan Ellebedy · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · 2023 · $208,535 — The SARS-CoV-2 pandemic represents an exceptional public health crisis highlighting the need for better understanding of the mechanisms controlling broadly protective immune responses and generating vaccine candidates able to elicit such responses. The program project entitled “Programming Long-last…

Evaluation of iDMV-1.0: A Single Dose Self-Amplifying Vaccine for SARS-CoV-2

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Devdoot Majumdar · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · 2023 · $226,930 — PROJECT SUMMARY: Devdoot Majumdar, PhD, Research Project Leader (RPL) The mRNA vaccines against SARS-CoV-2 proved unexpectedly efficacious, but also require a series of booster immunizations to remain protective. Global deployment of these vaccines has been slow, particularly in low- and middle-inco…

Project 2: PanbetaCoV protein vaccine design

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Kevin Wiehe · DUKE UNIVERSITY · 2023 · $2,828,814 — Abstract – Project 2 Animal betacoronaviruses (betaCoVs), such as those that gave rise to SARS-CoV-1, MERS, and now SARS- CoV-2, represent a significant, continuous threat to human health. Vaccines can provide pre-existing immunity to future zoonotic coronaviruses. A major limitation of the current …

Project 4: Computational panbetaCoV immunogen design

NIH Pandemic-Era Grants · Pandemic Era Grants / 2023

Rory Henderson · DUKE UNIVERSITY · 2023 · $966,626 — Abstract - Project 4 SARS-CoV-2, a member of the genus Betacoronavirus (betaCoV), is the third major zoonotic outbreak of a highly pathogenic betaCoV in the last two decades. We propose to design vaccines to contribute to the global effort to counter the COVID-19 pandemic as swiftly as possible, and…