Journal of Immunological Methods
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Isolation of high-affinity, neutralizing anti-idiotype antibodies by phage and ribosome display for application in immunogenicity and pharma...
We have used a combination of phage and ribosome display to isolate a panel of monoclonal anti-idiotype antibodies with sub-nanomolar affinity and high specificity to a human anti-IgE monoclonal antibody. Anti-idiotype antibodies were enriched from scFv libraries using phage display, and a biochemic...
Establishment of the first international standard for PEGylated granulocyte colony stimulating factor (PEG-G-CSF): Report of an internationa...
We assessed the feasibility of developing a suitable international reference standard for determination of in vitro biological activity of human sequence recombinant PEG-G-CSF products with a 20kD linear PEG linked to the N-terminal methionyl residue of G-CSF (INN Filgrastim), produced using a conju...
Mouse models of hepatitis B and delta virus infection.
Liver disease associated to persistent infection with the hepatitis B virus (HBV) continues to be a major health problem of global impact. Therapeutic regimens currently available can efficiently suppress HBV replication; however, the unique replication strategies employed by HBV permit the virus to...
Development and implementation of a proficiency testing program for Luminex bead-based cytokine assays.
Luminex bead array assays are widely used for rapid biomarker quantification due to the ability to measure up to 100 unique analytes in a single well of a 96-well plate. There has been, however, no comprehensive analysis of variables impacting assay performance, nor development of a standardized pro...
An ELISA method to compute endpoint titers to Epstein-Barr virus and cytomegalovirus: application to population-based studies.
Indirect fluorescence analysis (IFA), the gold standard for determining herpesvirus antibody titers, is labor-intensive and poorly suited for large population-based studies. The enzyme-linked immunosorbent assay (ELISA) is used widely for measuring antiviral antibodies but also suffers drawbacks suc...
Colorimetric engineered immunoprobe for the detection and quantification of microcystins.
We propose to apply recombinant antibody technologies to the production of a bivalent colorimetric immunoprobe (scFv-AP) made of the so-called scFv fused to the alkaline phosphatase (AP) of Escherichia coli. Recombinant antibody technologies allow the development of specific probes with improved pro...
A halotyrosine antibody that detects increased protein modifications in asthma patients.
We evaluated whether a 3-bromobenozoic acid hapten antigen produced antibodies that recognized halogenated tyrosine residues. Studies with small-molecule inhibitors or brominated or chlorinated protein suggested that a mouse monoclonal antibody (BTK-94C) selectively bound free and protein mono- and...
A flow cytometric method for the analysis of macrophages in the vascular wall.
We describe a method for the isolation and subsequent flow cytometric analysis of macrophages from aortas of mice. Cell suspensions were prepared from thoracic aortas of male C57BL/6J mice by a combination of manual disruption, incubation in enzymatic digestion medium, and passage through a 70 μm ce...
Multiplex serology of paraneoplastic antineuronal antibodies.
We developed a multiplex assay based on Luminex technology. Reaction of serial dilutions of six onconeural standard sera with microsphere-bound antigens showed lower limits of detection than with Western blotting. Using the six standard sera at a dilution of 1:200, the average within-run coefficient...