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CDC and collaborating researchers have developed a new monoclonal antibody that recognizes canine IgG (likely IgG4 subclass). This anti-dog IgG reagent could be used to detect antibody reactions to a variety of antigens and has potential use in a wide variety of diagnostic or research applications.

Immunoglobulins play a key role in the immune system. CDC has developed and tested hybridoma cell lines (monoclonal antibody (mAb) clones) for human IgG and other immunoglobulins. The mAbs generated from those hybridomas could be used as a reagent (second Ab) of anti-human immunoglobins in a diagnostic assay for SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the virus that causes COVID-19 (coronavirus disease 2019) and other assays that detect antigen specific antibodies from human sera.

Rotaviruses cause severe gastroenteritis in humans and animals globally. Currently, there are eight known serogroups (A-H) of rotaviruses. Group C rotavirus (GpC RV) causes sporadic cases and outbreaks of acute diarrhea in children and adults worldwide. GpC RV is also associated with diarrhea in swine. Currently, no simple and reliable diagnostic test exists for GpC RV, so disease prevalence remains unknown.

This invention includes the generation and use of two polyclonal antibodies that specifically recognizes the phosphorylation site pThr707 of Neuroligin 4 and pThr739 of Neuroligin 1. A peptide of the site around the phosphorylation site was generated and injected into rabbits to create an immune response. Serum was collected from the rabbits that was then affinity purified. The specificity of the resulting polyclonal antibodies was then determined using biochemical techniques.

This technology includes a strategy to generate antibodies of rabbit origin, both polyclonal and monoclonal, which have strong affinity to the TAT sequence and which enable specific immunocapture or immunodetection of TAT containing frataxin and analogs for quantitative or qualitative assays. In addition, antibodies that react with the FXN region have also been generated with this strategy. The HIV virus encoded a translational activator protein containing a 12 amino acid domain which permits transmembrane delivery of any therapeutic protein containing the sequence.

This technology includes the enablement of the nanoliter-scale transfer of biological liquids in array format from a microplate (source plate) containing cultured cells or other protein-containing mixtures onto a nitrocellulose membrane that has been mounted within a custom-designed target plate. Using this method and the prototype nitrocellulose target plate, reverse phase protein arrays can be generated in which protein levels from each well transferred onto the membrane can be detected and quantified.

This technology includes a precise measurement assay of cellular FMRP levels in patients, which can assist in the diagnosis and assess the severity of Fragile X syndrome (FXS). FXS is an X-linked disorder that produces intellectual disability, cognitive impairment, epilepsy, depression and anxiety. FXS is caused by mutations in the Fragile X Mental Retardation-1 (FMR1) gene that result in the absence or a loss of function of its protein product, FMRP.

NCATS has developed a highly diverse synthetic library that will allow for the rapid identification of novel nanobodies that bind to a wide arrange of target antigens. The humanized framework used to construct the library will facilitate the transition of lead candidates into patient studies. Several highly potent SARS-CoV-2 nanobodies (antibodies) have been identified and are available for further development.

NCATS is actively seeking licensing for the 1) a synthetic library and 2) the potent neutralizing antibodies with activity against SARS-CoV-2.

This technology includes monoclonal antibody (mAb) that binds to the junction region of the PAX3-FOXO1 and PAX7-FOXO1 fusion protein for the diagnosis of Alveolar Rhabdomyosarcoma (ARMS). Specifically, two monoclonal antibodies (PFM.1 and PFM.2) have been isolated that recognize the 92kDa bands found uniquely to the pediatric striated muscle tumors of the type Alveolar Rhabdomyosarcoma (ARMS) carrying the characteristic t(2;13)(q35;q14) or t(1;13)(p36;q14) chromosomal translocations.

The invention is a panel of five tests of patient sera for immune responses that may attack the brain and lead to the characteristic symptoms of pediatric acute neurologic syndrome (PANS). PANS is a condition defined by a sudden onset of obsessive-compulsive symptoms, eating restrictions, and other cognitive and/or behavioral symptoms. Currently, the diagnosis of PANS is made when other possible symptoms are ruled out, a diagnosis of exclusion.