There is evidence that the Lewis(a) blood group antigen is one of the receptors for a number of potentially pathogenic microorganisms. To determine how widely distributed the microbial adhesins are that bind this antigen, anti-idiotypic antibodies produced against monoclonal anti-Lewis(a) were used in coagglutination assays to screen a variety of species. The following were agglutinated: 7/7 strains of Staphylococcus aureus; 10/19 (53%) strains of Neisseria meningitidis; 8/13 (62%) strains of Haemophilus influenzae; 1/3 strains of Helicobacter pylori; 1/2 strains of Neisseria gonorrhoeae; 1/2 strains of Candida albicans. The application of the anti-idiotypic antibodies to studies of host cell receptors, isolation of adhesins and development of new epidemiological typing reagents is discussed.
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http://dx.doi.org/10.1111/j.1574-695X.1994.tb00468.x | DOI Listing |
Arch Dermatol Res
January 2025
Department of dermatology, Lishui Central Hospital, Lishui, 323000, China.
The purpose of this study was to evaluate dermatologists' knowledge, attitudes, and practices (KAP) concerning omalizumab therapy for chronic urticaria. We conducted a cross-sectional study in several hospitals in China, mainly in hospitals in Zhejiang Province, during August 1, 2024 - August 15, 2024 using a self-administered KAP questionnaire. Wilcoxon-Mann-Whitney tests and Kruskal-Wallis analysis of variance were performed to compare differences across groups Factors influencing practice were determined through multivariable logistic regression.
View Article and Find Full Text PDFVaccines (Basel)
January 2025
Infectious Diseases and Vaccine Research, Merck & Co., Inc., Rahway, NJ 07065, USA.
The respiratory syncytial virus (RSV) is a major cause of lower respiratory tract infections in children and adults. With nearly everyone infected by the age of five, there is an opportunity to develop booster vaccines that enhance B-cell immunity, promoting potent and broadly neutralizing antibodies. One potential approach involves using anti-idiotypic antibodies (anti-IDs) to mimic specific antigenic sites and enhance preexisting immunity in an epitope-specific manner.
View Article and Find Full Text PDFClin Chim Acta
January 2025
College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China. Electronic address:
Background: Rituximab pharmacokinetics in patients with membranous nephropathy (MN) exhibit significant interindividual variability. Accurate measurement of serum rituximab concentrations is essential for effective therapeutic monitoring. This study develops a highly sensitive time-resolved fluoroimmunoassay (TRFIA) for rituximab (rituximab-TRFIA) with a wide detection range, aimed at enhancing therapeutic drug monitoring in MN treatment.
View Article and Find Full Text PDFJ Biol Chem
January 2025
Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany. Electronic address:
Recently, we phenocopied Interleukin (IL-)6 signaling using the dimerized single-chain variable fragment (scFv) derived from the respiratory syncytial virus (RSV) IgG1-antibody Palivizumab (PLHFc) to activate a Palivizumab anti-idiotypic nanobody (AIP)-gp130 receptor fusion protein. Palivizumab was unable to activate STAT3 signaling, so we aimed to create a similar ligand capable of triggering this pathway. Here, we created three variants of the ligand called PLH0Fc, PLH4Fc and PLH8Fc by shortening the spacer region connecting PLH and Fc from 23 amino acids in PLHFc to 0 amino acids or expanding it by rigid linkers of 4 or 8 alpha helical loops, respectively.
View Article and Find Full Text PDFSci Immunol
January 2025
Department of Integrative, Structural and Computational Biology, Scripps Research, La Jolla, CA, USA.
Vaccination strategies against HIV-1 aim to elicit broadly neutralizing antibodies (bnAbs) using prime-boost regimens with HIV envelope (Env) immunogens. Epitope mapping has shown that early antibody responses are directed to easily accessible nonneutralizing epitopes on Env instead of bnAb epitopes. Autologously neutralizing antibody responses appear upon boosting, once immunodominant epitopes are saturated.
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