This study investigated the immune response and outcome of BNT162b2 vaccination among 12 staff at a hospital in Fukushima, Japan. Blood samples were collected from participants before their first vaccination, with subsequent sampling performed during the participants' work days for six weeks thereafter. Antibody titers peaked 6-13 days after the second vaccination (days 27-34 after the first), followed by a steady decrease. Six males had significantly lower peak antibody titers than six females (p = 0.016 with t-test); the older six (median age 53 years) had lower antibody titers than the younger six (median age 35 years) but without statistical significance (p value=0.24 with t-test).
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http://dx.doi.org/10.5387/fms.2021-28 | DOI Listing |
PLoS Negl Trop Dis
January 2025
Department of Pediatrics, National School of Tropical Medicine, Baylor College of Medicine, Houston, Texas, United States of America.
Background: The antigen Na-GST-1, expressed by the hookworm Necator americanus, plays crucial biochemical roles in parasite survival. This study explores the development of mRNA vaccine candidates based on Na-GST-1, building on the success of recombinant Na-GST-1 (rNa-GST-1) protein, currently assessed as a subunit vaccine candidate, which has shown promise in preclinical and clinical studies.
Methodology/findings: By leveraging the flexible design of RNA vaccines and protein intracellular trafficking signal sequences, we developed three variants of Na-GST-1 as native (cytosolic), secretory, and plasma membrane-anchored (PM) antigens.
Ann Thorac Surg Short Rep
December 2024
Division of Cardiothoracic Surgery, University of California, San Diego, California.
Thymomas have been associated with the generation of paraneoplastic autoantibodies to neurogenic epitopes, collapsin-response-mediator protein-5 receptor (CRMP-5) and alpha-amino-3-hydroxyl-5methyl-4isoxazolepropionic acid receptor (AMPAR), in patients with acute viral infection. We report a patient with thymoma and myasthenia gravis, with SARS-CoV-2 infection, who became comatose secondary to autoimmune encephalitis. Plasmapheresis, high-dose steroids, pyridostigmine, eculizumab, and rituximab did not restore neurologic function.
View Article and Find Full Text PDFTransfusion
January 2025
Department of Blood Transfusion, Fujita Health University Hospital, Toyoake, Japan.
Background: Ethylenediamine tetraacetate/glycine acid (EGA) and chloroquine diphosphate (CDP) are used in transfusion testing to dissociate IgG antibodies from red blood cells (RBCs). However, the ability of these reagents to dissociate IgM antibodies sensitized to RBCs has not been comprehensively elucidated. We investigated whether EGA and CDP could dissociate cold-reactive antibodies from RBCs and their effect on RBCs after dissociation treatment.
View Article and Find Full Text PDFSci Rep
January 2025
Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.
The ongoing emergence of SARS-CoV-2 variants, combined with antigen exposures from different waves and vaccinations, poses challenges in updating COVID-19 vaccine antigens. We collected 206 sera from individuals with vaccination-only, hybrid immunity, and single or repeated omicron post-vaccination infections (PVIs), including non-JN.1 and JN.
View Article and Find Full Text PDFACS Nano
January 2025
National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Qingdao 266237, China.
Cancer vaccines utilizing nanoparticle (NP) structures that integrate antigens and adjuvants to enhance delivery and stimulate immune responses are emerging as a promising avenue in cancer immunotherapy. However, the development of cancer vaccines has been significantly hindered by the low immunogenicity of tumor antigens. To address this challenge, substantial efforts have been made in developing innovative adjuvants to elicit effective immune responses.
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