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A Universal Therapeutic Vaccine Leveraging Autologous Pre-Existing Immunity to Eliminate in Situ Uniformly Engineered Heterogeneous Tumor Cells.
Adv Mater
January 2025
Sichuan Provincial Key Laboratory for Human Disease Gene Study and the Center for Medical Genetics, Department of Laboratory Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
Tumor vaccines that activate the autologous immune system to eliminate tumor cells represent a promising approach in cancer immunotherapy. However, challenges such as tumor heterogeneity, limited antigen selection, insufficient antigen presentation, and the slow onset of de novo immune responses have resulted in poor universality and suboptimal response rates. In contrast, pathogen-specific pre-existing immunity acquired through infection or vaccination, can rapidly generate a more potent and enduring immune response upon re-encounter with the same antigen.
View Article and Find Full Text PDFLong-term increase in soluble interleukin-6 receptor levels in convalescents after mild COVID-19 infection.
Front Immunol
January 2025
Institute of Clinical Biochemistry, Hannover Medical School, Hannover, Germany.
Introduction: Serum levels of interleukin-6 (IL-6) are increased in COVID-19 patients. IL-6 is an effective therapeutic target in inflammatory diseases and tocilizumab, a monoclonal antibody that blocks signaling via the IL-6 receptor (IL-6R), is used to treat patients with severe COVID-19. However, the IL-6R exists in membrane-bound and soluble forms (sIL-6R), and the sIL-6R in combination with soluble glycoprotein 130 (sgp130) forms an IL-6-neutralizing buffer system capable of neutralizing small amounts of IL-6.
View Article and Find Full Text PDFSARS-CoV-2 continues to evolve, with new variants emerging that evade pre-existing immunity and limit the efficacy of existing vaccines. One approach towards developing superior, variant-proof vaccines is to engineer immunogens that preferentially elicit antibodies with broad cross-reactivity against SARS-CoV-2 and its variants by targeting conserved epitopes on spike. The inner and outer faces of the Receptor Binding Domain (RBD) are two such conserved regions targeted by antibodies that recognize diverse human and animal coronaviruses.
View Article and Find Full Text PDFRelapsing ANCA-associated vasculitis presenting as a mediastinal mass.
BMJ Case Rep
January 2025
Department of Nephrology, Barts Health NHS Trust, London, UK.
Anti-neutrophil cytoplasmic antibody-associated vasculitides (AAV) represent a heterogeneous multisystem group of disorders typified by necrotising inflammation of smaller blood vessels, classically yielding a pauci-immune, crescentic glomerulonephritis. Without prompt treatment, there is a significant risk of irreversible damage and ensuing renal impairment.Diagnosis is often challenging, exacerbated by the disorder's often vague and insidious presentation.
View Article and Find Full Text PDFSafety, efficacy, and immunogenicity of a novel IgG degrading enzyme (KJ103): results from two randomised, blinded, phase 1 clinical trials.
Gene Ther
January 2025
Shanghai Bao Pharmaceuticals Co., Ltd., No. 28 Luoxin Road, Baoshan, Shanghai, China.
The approved intravenous adeno-associated virus (AAV) therapies are limited by the widespread prevalence of pre-existing anti-AAV antibodies in the general population, which are known to restrict patients' ability to receive gene therapy and limit transfection efficacy in vivo. To address this challenge, we have developed a novel recombinant human immunoglobulin G degrading enzyme KJ103, characterized by low immunogenicity and clinical value for the elimination of anti-AAV antibodies in gene transfer. Herein, we conducted two randomized, blinded, placebo-controlled, single ascending dose Phase I studies in China and New Zealand, to evaluate the pharmacokinetics, pharmacodynamics, safety and immunogenicity of KJ103 in healthy volunteers.
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