Universal Nucleic Acid Amplification Test (NAAT) platforms rely on the discovery that conserved and variable sequences contained in all human pathogens can be exploited for development of robust rapid diagnostic methods. We will grow two already advanced broad based diagnostic platforms which will both support Program Projects in the Center, and establish utility for dual use, i.e. biodefense/emerging infections and commonly encountered clinical infections, increasing likelihood of commercialization. Complementary but distinct strengths of each platform will be harnessed - speed for the 16S rRNA PCR (16S), and ability to genotype and identify a wide range of pathogens for IBIS T-5000 (T-5000). The program will have 6 specific aims:
Specific Aim 1 : Optimizing sample preparation methods (whole blood and peritoneal fluid) for extraction of nucleic acids and determine analytic and clinical accuracy of 16S and T-5000 in mock-ups, animal samples and banked human samples.
Specific Aim 2 : Evaluating diagnostic accuracy of 16S and T- 5000 methods for organisms of interest to MARCE-2 collaborators, including those which invade the Gl mucosa (Program II) or respiratory tract (Program III) and cause sepsis or peritonitis;and demonstrating capacity to differentiate strains and serovars, using both established and novel post-amplification methods.
Specific Aim 3 : Developing customized panels of bioinformatic software for, and determine clinical utility of, T-5000 for rapid detection, identification, and genotyping of pathogens (common, biothreat [BT] and emerging) which invade and cause disease of the respiratory tract. The capacity of the T-5000 will be determined to identify mixed cultures and the ability to provide genotying at a basic level.
Specific Aim 4 : Applying the 16S and/or T-5000 to MARCE Programs project for which vaccines are being developed and tested in animal models. Since several projects in MARCE-2 will include discovery, development and testing of broad-spectrum enteric vaccines, determination of the presence of pathogen (especially those at low levels) in animal challenged following vaccine delivery may be necessary. For later years, screening vaccines that are grown in tissue culture for adventitious agents will be done by T-5000.
Specific Aim 5 : Developing Good Manufacturing Practice (GMP) validated protocols to produce a T-5000 diagnostic kit for commercialization that could be used in hospitals, State laboratories, Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO) reference laboratories, and;to work towards filing new patents and pursuing license commercial opportunities for 16S related assays. Manufacturing and Quality personnel will prepare development of kit testing reagents which will include participation in building and testing prototype runs of reagents.

Public Health Relevance

The objective of this program is to accelerate development, clinical evaluation and deployment of genomic and proteomic based diagnostics for effective public health response to a bioterrorist or emerging infectious disease even

National Institute of Health (NIH)
National Institute of Allergy and Infectious Diseases (NIAID)
Specialized Center--Cooperative Agreements (U54)
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Special Emphasis Panel (ZAI1-DDS-M)
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University of Maryland Baltimore
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Kaempfer, Raymond; Popugailo, Andrey; Levy, Revital et al. (2017) Bacterial superantigen toxins induce a lethal cytokine storm by enhancing B7-2/CD28 costimulatory receptor engagement, a critical immune checkpoint. Receptors Clin Investig 4:
Bridge, Dacie R; Blum, Faith C; Jang, Sungil et al. (2017) Creation and Initial Characterization of Isogenic Helicobacter pylori CagA EPIYA Variants Reveals Differential Activation of Host Cell Signaling Pathways. Sci Rep 7:11057
Molleston, Jerome M; Cherry, Sara (2017) Attacked from All Sides: RNA Decay in Antiviral Defense. Viruses 9:
Cifuentes-Muñoz, Nicolás; Sun, Weina; Ray, Greeshma et al. (2017) Mutations in the Transmembrane Domain and Cytoplasmic Tail of Hendra Virus Fusion Protein Disrupt Virus-Like-Particle Assembly. J Virol 91:
Wahid, Rezwanul; Fresnay, Stephanie; Levine, Myron M et al. (2016) Cross-reactive multifunctional CD4+ T cell responses against Salmonella enterica serovars Typhi, Paratyphi A and Paratyphi B in humans following immunization with live oral typhoid vaccine Ty21a. Clin Immunol 173:87-95
Li, Huiguang; Hwang, Young; Perry, Kay et al. (2016) Structure and Metal Binding Properties of a Poxvirus Resolvase. J Biol Chem 291:11094-104
Ramachandran, Girish; Tennant, Sharon M; Boyd, Mary A et al. (2016) Functional Activity of Antibodies Directed towards Flagellin Proteins of Non-Typhoidal Salmonella. PLoS One 11:e0151875
Molleston, Jerome M; Sabin, Leah R; Moy, Ryan H et al. (2016) A conserved virus-induced cytoplasmic TRAMP-like complex recruits the exosome to target viral RNA for degradation. Genes Dev 30:1658-70
Riblett, Amber M; Blomen, Vincent A; Jae, Lucas T et al. (2016) A Haploid Genetic Screen Identifies Heparan Sulfate Proteoglycans Supporting Rift Valley Fever Virus Infection. J Virol 90:1414-23
Chou, Yi-ying; Cuevas, Christian; Carocci, Margot et al. (2016) Identification and Characterization of a Novel Broad-Spectrum Virus Entry Inhibitor. J Virol 90:4494-510

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