#Immunology #Proteomics #sflorg
https://www.sflorg.com/2026/01/imgy01282601.html
Prevalent and persistent new-onset #autoantibodies in mild to severe #COVID19
Source: Nature Communications, AbstractAutoantibodies have been shown to be implied in COVID-19 but the emerging autoantibody repertoire remains largely unexplored. We investigated the new-onset autoantibody repertoire in 525 healthcare workers and hospitalized COVID-19 patients at five time points over a 16-month period in 2020 and 2021 using proteome-wide and targeted protein and peptide…
How an anti-hero of the #ImmuneSystem protects from malaria https://blogs.biomedcentral.com/bugbitten/2024/07/07/how-an-anti-hero-of-the-immune-system-protects-from-malaria/
#Autoantibodies inhibit #Plasmodium falciparum growth and are associated with protection from clinical #malaria https://www.sciencedirect.com/science/article/abs/pii/S1074761324002784
"Malarial #disease and #autoimmune disease share a strange relationship. Both are best avoided, however when one is infected with the Plasmodium parasite it may be beneficial to have a propensity for autoimmunity."
Background: Coronavirus disease (COVID-19) manifests many clinical symptoms, including an exacerbated immune response and cytokine storm. Autoantibodies in COVID-19 may have severe prodromal effects that are poorly understood. The interaction between these autoantibodies and self-antigens can result in systemic inflammation and organ dysfunction. However, the role of autoantibodies in COVID-19 complications has yet to be fully understood.Methods: The current investigation screened two independent cohorts of 97 COVID-19 patients [discovery (Disc) cohort from Qatar (case = 49 vs. control = 48) and replication (Rep) cohort from New York (case = 48 vs. control = 28)] utilizing high-throughput KoRectly Expressed (KREX) Immunome protein-array technology. Total IgG autoantibody responses were evaluated against 1,318 correctly folded and full-length human proteins. Samples were randomly applied on the precoated microarray slides for 2 h. Cy3-labeled secondary antibodies were used to detect IgG autoantibody response. Slides were scanned at a fixed gain setting using the Agilent fluorescence microarray scanner, generating a 16-bit TIFF file. Group comparisons were performed using a linear model and Fisher’s exact test. Differentially expressed proteins were used for KEGG and WIKIpathway annotation to determine pathways in which the proteins of interest were significantly over-represented.Results and conclusion: Autoantibody responses to 57 proteins were significantly altered in the ...
Autoantibody production is enhanced after mild SARS-CoV-2 infection despite vaccination in patients with and without long COVID
"AUTOANTIBODY production is enhanced after mild SARS-CoV-2 infection despite vaccination in patients with and without long COVID"
https://www.medrxiv.org/content/10.1101/2023.04.07.23288243v1
https://www.medrxiv.org/content/10.1101/2023.04.07.23288243v1.full.pdf