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The technology presented is a breakthrough in the diagnosis of lymphatic filariasis, specifically targeting the B. malayi pathogen. It encompasses a novel soluble antigen extract used in both IgG and IgG4-based ELISA tests, aimed at detecting the presence of the filarial infection. This innovation serves as a cornerstone for a CLIA-certified reference test, established and utilized in Dr. Nutman's laboratory since the late 1980s.

The technology involves the genetic engineering of Respiratory Syncytial Virus (RSV) to express two additional genes, green fluorescent protein (GFP) and Renilla luciferase, from different positions within the viral genome. GFP serves as a visual marker for RSV infection, allowing researchers to monitor and track infected cells using fluorescence microscopy, while luciferase functions as a highly sensitive reporter gene that enables quantitative assessment of viral replication through enzymatic assays.

The technology described is a sophisticated and high-throughput luciferase immunoprecipitation system (LIPS) assay designed to detect antibodies specific to Varicella-zoster virus (VZV) glycoprotein E (gE). By transfecting cells with VZV protein-Renilla luciferase fusion protein constructs and subsequently performing immunoprecipitations with protein A/G beads, this innovative assay enables the quantitative measurement of VZV gE antibody levels in blood serum samples.

CDC scientists have developed a new design for a multi-well dialysis microplate for equilibrium dialysis. The unique design accommodates a 1:1 buffer to sample ratio and provides additional room at the base of the well to enable optimal cartridge immersion and analyte diffusion. The microplate is readily adaptable into existing automated analytical systems and meets the criteria of American National Standards Institute (ANSI). The microplate is designed for measuring blood or other biological fluid samples over a wide range of sample volumes and may be used in a high throughput manner.

Summary:

The National Cancer Institute (NCI) seeks licensees for human T-cell lines, C8166 and C8166-45, transformed by HTLV-1. C8166-45, a subclone of C8166, contains three transcriptionally active proviruses useful for testing biological activities involved in T-cell immortalization and growth.

The technology involves the development of viral hemagglutinin (HA) mutants that enhance the binding affinity to sialic acid (SA) receptors on host cell surfaces. This enhanced interaction is achieved by introducing specific mutations into the HA protein, leading to increased immunogenicity and vaccine efficacy. The mutated HA proteins are then incorporated into ferritin nanoparticles, which serve as a delivery platform to enhance protein production and stability. This technology shows promise in improving vaccine design and efficacy against viral infections.

The technology involves the development of monoclonal antibodies produced by hybridomas, including cell lines such as 10G3, 3E6, 10D4, 10G4, 1D8, 13D10, 9E5, and 9F10, which specifically react with Bacillus anthracis Lethal Factor (LF). These monoclonal antibodies offer valuable applications in anthrax detection, therapeutic intervention, and research into the biology of Bacillus anthracis and its lethal toxin. This advancement provides promising tools for mitigating the impact of anthrax infections and advancing our understanding of this deadly pathogen.

This technology includes human F(ab’)2 fragments specific for anthrax lethal factor for the development of a lateral flow immunoassay for Bacillus anthracis Lethal Factor. The F(ab’)2 fragments are generated from a Human Combinatorial Antibody Library (HuCAL) and are highly specific with high affinity. A multi-step process was utilized beginning by screening a phage display library with over 45 billion functional human antibody specificities. The primary screen against Bacillus anthracis Lethal Factor (LF) generated 360 positive clones.

This technology includes an optimized influenza A/H9 virus real-time (RT)-PCR assay for detection and characterization influenza A/H9 viruses, which are considered to be one of the most likely candidates to cause an influenza pandemic in humans. The H9 real-time RT-PCR assay will be in compliment with CDC human Influenza Viruses RT-PCR Detection and Characterization Panel to detect of A/H9 influenza viruses.

This technology includes an optimized N.A H7 influenza A virus subtyping real-time (RT)-PCR assay for detection and characterization of N.A A/H7 influenza viruses. Since 1995, infection of poultry with N.A A/H7 influenza viruses has greatly increased, the outbreaks of N.A A/H7 influenza viruses in poultry as well as wild birds occurred many times in Canada, Mexico and USA; meanwhile a number of human infection caused by N.A A/H7 influenza viruses have been confirmed following exposure to infected poultry.