Controlled Expression and Assembly of Human Group-C Rotavirus-like Particles for Creation of Rotavirus Diagnostic Assays and Improved Vaccine Formulations

CDC researchers have developed methods of producing unlimited quantities of Group-C (GpC) rotavirus antigens. GpC rotaviruses are a major, worldwide cause of acute gastroenteritis in children and adults that is distinct from Group-A rotavirus. However, GpC rotaviruses cannot be grown in culture, resulting in a lack of tools for detection and treatment of GpC rotavirus disease.

Respiratory Syncytial Virus Immunogens for Vaccine and Therapeutics Development

CDC researchers have developed specific Respiratory Syncytial Virus (RSV) immunogens for use in the development of RSV-directed vaccines and therapeutics. RSV is the most common cause of serious respiratory disease in infants and young children and an important cause of disease in the elderly. To date, efforts to make a mutually safe and effective vaccine have been largely unsuccessful.

Antigen, Encoding Gene, Related Monoclonal Antibody and Hybridoma Clones for Streptococcus pneumoniae Serological Diagnostics

This CDC developed invention pertains to Streptococcus pneumoniae protein "pneumococcal fimbrial protein A (PfpA)," as well as the encoding pfpA gene. S. pneumoniae linked pneumococcal disease is prevalent among the very young, the elderly and also immunocompromised individuals. This invention covers the breadth of directly PfpA-related technology that might be employed for development of diagnostic tests for S. pneumoniae and/or vaccines directed against the pathogen.

Exposure and Activity Detection Assays for Anthrax Lethal Factor and Lethal Toxin

This CDC developed invention identifies an assay for extremely fast and sensitive detection of Bacillus anthracis lethal toxin (LTx), the toxin responsible for the lethal effects of anthrax infection. This assay has already been successfully tested in animals and will allow for early detection of anthrax exposure and screening of lethal factors to monitor anthrax toxicity, for example for vaccine trial candidates.

Multi-Antigenic Peptide(s) Vaccine and Immunogen for Conferring Streptococcus pneumoniae Immunity

Disease caused by Streptococcus pneumoniae (pneumococcus) is an important cause of morbidity and mortality in the United States and developing countries. Pneumococcal disease is prevalent among the very young, the elderly and immunocompromised individuals. This invention is an improved, immunogenic peptide construct consisting of a combination of antigenic epitopes of the PsaA (37-kDa) protein from S. pneumoniae.

Methods for the Simultaneous Detection of Multiple Analytes

CDC researchers have developed a method of simultaneously detecting and distinguishing multiple antigens within a biological sample. Epidemiological and vaccine studies require species serotype identification. Current methods of serotyping are labor intensive and can easily give subjective, errant results. This technology utilizes serotype specific antibodies bound to fluorescent beads, allowing for simultaneous single tube capture and detection of multiple antigens in one rapid, high-throughput flow cytometry assay.

Peptide Sequences for Chlamydophila pneumoniae Vaccine and Serological Diagnosis

CDC researchers have isolated select Chlamydophila pneumoniae peptide epitopes for development of vaccines and diagnostic assays. Currently, C. pneumoniae infection of humans has been linked to a wide variety of acute and chronic diseases, such as asthma, endocarditis, atherosclerotic vascular disease, chronic obstructive pulmonary disease, sarcoidosis, reactive arthritis and multiple sclerosis. There is presently no available peptide vaccine for the pathogen and reliable and accurate diagnostic methods are limited.

Methods for Amelioration and Treatment of Pathogen-associated Inflammatory Response

This CDC invention provides methods for preventing or treating inflammatory response-linked, infection induced pathologies, which are mediated by endogenous substance P. Substance P is a naturally-occurring and major pro-inflammatory neuromediator or neuromodulator, and elevated levels of substance P have been implicated in numerous inflammation-associated diseases. More specifically, this technology entails administration of anti-substance P antibodies or anti-substance P antibody fragments to a subject in need, thereby inhibiting the activity of endogenous substance P.

MDCK-based Reporter System for Detection of Influenza Viruses, Antiviral Drug Screening, and Analysis of Neutralizing Antibodies

CDC researchers have developed a Madin-Darby Canine Kidney (MDCK) reporter cell line that is exceptionally permissive for influenza virus replication and provides a highly specific, sensitive approach for the simultaneous detection and isolation of influenza viruses. Simplified antibody neutralization assays and high-throughput antiviral drug screening can also be easily and efficiently implemented using this reporter system.

Highly Sensitive Tethered-Bead Immune Sandwich Assay

This technology is a highly sensitive tethered-bead immune sandwich assay. Analyte molecules are captured between two antibodies, a capture antibody and a detection antibody. The capture antibody on a micron-size bead binds analyte from a sample fluid. The bead-captured analyte is then exposed to a “detection” antibody that binds to the bead-captured analyte, forming a “sandwich”. The sandwiched analyte-bead complex then connects to a flexible polymer (such as DNA) anchored on a solid surface to form tethered particles.