-specific monoclonal antibodies recognize IgM and IgY antibodies not only from but also as well as a variety of amphibian species including , and even some salamanders. These reagents are very useful to assess antibody responses from the serum or other animal secretions (e.g., peritoneal fluid). We present here an enzyme-linked immunosorbent assay (ELISA) optimized for amphibians that permits users to detect and titrate the presence of each type of antibody (IgM and IgY) produced against particular pathogens (e.g., virus, bacteria, or fungus) or antigens (e.g., DNP-KLH).
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http://dx.doi.org/10.1101/pdb.prot099234 | DOI Listing |
J Clin Invest
January 2025
Guangzhou Laboratory, Guangzhou International Bio-Island, Guangzhou, China.
The persistent emergence of COVID-19 variants and recurrent waves of infection worldwide underscores the urgent need for vaccines that effectively reduce viral transmission and prevent infections. Current intramuscular (IM) COVID-19 vaccines inadequately protect the upper respiratory mucosa. In response, we have developed a nonadjuvanted, interferon-armed SARS-CoV-2 fusion protein vaccine with IM priming and intranasal (IN) boost sequential immunization.
View Article and Find Full Text PDFClin Rheumatol
January 2025
Department of Pediatric Rheumatology, Zeynep Kamil Women and Children's Diseases Training and Research Hospital, Istanbul, Turkey.
Introduction/objectives: The study aimed to determine whether in children with newly diagnosed juvenile idiopathic arthritis (JIA) hepatitis B surface antibody (anti-HBs) differs from healthy children and to see whether the revaccination is safe and effective under JIA treatment.
Methods: Patients who were followed up with a diagnosis of JIA between January 2020 and February 2024 were included. The control group consisted of healthy children matched for age and gender.
HLA
January 2025
IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy.
COVID-19 remains a significant global health problem with uncertain long-term consequences for convalescents. We investigated the relationships between anti-N protein antibody levels, severe acute respiratory syndrome (SARS)-CoV-2-associated TCR repertoire parameters, HLA type and epidemiological information from three cohorts of 524 SARS-CoV-2-infected subjects subgrouped in acute phase, seronegative and seropositive convalescents from the Emilia Romagna region. Epidemiological information and anti-N antibody index were associated with TCR repertoire data.
View Article and Find Full Text PDFIn Silico Pharmacol
January 2025
Bioinformatics Infrastructure Facility, Sri Venkateswara College (University of Delhi), Benito Juarez Road, Dhaula Kuan, New Delhi, 110021 India.
Unlabelled: Bet v 1, the European White Birch tree pollen allergen is responsible for a number of allergic responses in humans such as rhinitis, asthma and oral allergy syndrome. The allergen belongs to pathogenesis-related (PR) class 10 protein superfamily and exists in several naturally occurring isoforms. Limited structural information on Bet v 1 isoallergens and variants prompted us to carry out their in silico structural characterization.
View Article and Find Full Text PDFiScience
January 2025
Laboratory of Immunoengineering, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China.
Whether Omicron exposures could overcome ancestral SARS-CoV-2 immune imprinting remains controversial. Here we analyzed B cell responses evoked by sequential Omicron infections in vaccinated and unvaccinated individuals. Plasma neutralizing antibody titers against ancestral SARS-CoV-2 and variants indicate that immune imprinting is not consistently induced by inactivated or recombinant protein vaccines.
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