Abstract

We are proposing to develop devices for the quantitative detection of botulinum neurotoxins (BoNT) at attomolar sensitivity with fully automated bench-top instrumentation. We will adopt the existing bead-based BoNT ALISSA technology, developed by the Kalkum lab at City of Hope, into a monolithic microcolumn format to be utilized by common liquid handling robots. We will also develop an automated, highly sensitive, and inexpensive wave-guide-based optical read-out system for integration in the robots. The resulting functional prototype system is expected to automatically process and analyze multiple samples simultaneously and repeatedly (up to 96 per hour). Automated calibration routines and controls for botulinum toxin and non-botulinum toxin proteases will be included. Our assay system will be tested and validated with complex biological matrices such as serum, solid organ and food extracts as well as clinical samples.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Specialized Center--Cooperative Agreements (U54)
Project #
2U54AI065359-05
Application #
7675190
Study Section
Special Emphasis Panel (ZAI1-DDS-M (J2))
Project Start
2009-05-01
Project End
2014-04-30
Budget Start
2009-05-01
Budget End
2010-04-30
Support Year
5
Fiscal Year
2009
Total Cost
$247,608
Indirect Cost

  Institution

Name
University of California Irvine
Department
Type
DUNS #
046705849
City
Irvine
State
CA
Country
United States
Zip Code
92697

  Publications

Tsai, Wen-Yang; Youn, Han Ha; Tyson, Jasmine et al. (2018) Use of Urea Wash ELISA to Distinguish Zika and Dengue Virus Infections. Emerg Infect Dis 24:1355-1359
Thongsripong, Panpim; Chandler, James Angus; Green, Amy B et al. (2018) Mosquito vector-associated microbiota: Metabarcoding bacteria and eukaryotic symbionts across habitat types in Thailand endemic for dengue and other arthropod-borne diseases. Ecol Evol 8:1352-1368
Katzelnick, Leah C; Ben-Shachar, Rotem; Mercado, Juan Carlos et al. (2018) Dynamics and determinants of the force of infection of dengue virus from 1994 to 2015 in Managua, Nicaragua. Proc Natl Acad Sci U S A 115:10762-10767
Clemens, Daniel L; Lee, Bai-Yu; Horwitz, Marcus A (2018) The Francisella Type VI Secretion System. Front Cell Infect Microbiol 8:121
Huwyler, Camille; Heiniger, Nadja; Chomel, Bruno B et al. (2017) Dynamics of Co-Infection with Bartonella henselae Genotypes I and II in Naturally Infected Cats: Implications for Feline Vaccine Development. Microb Ecol 74:474-484
Norris, Michael H; Heacock-Kang, Yun; Zarzycki-Siek, Jan et al. (2017) Burkholderia pseudomallei natural competency and DNA catabolism: Identification and characterization of relevant genes from a constructed fosmid library. PLoS One 12:e0189018
Marques, Adriana R; Yang, Xiuli; Smith, Alexis A et al. (2017) Citrate Anticoagulant Improves the Sensitivity of Borreliella (Borrelia) burgdorferi Plasma Culture. J Clin Microbiol 55:3297-3299
Nualnoi, Teerapat; Norris, Michael H; Tuanyok, Apichai et al. (2017) Development of Immunoassays for Burkholderia pseudomallei Typical and Atypical Lipopolysaccharide Strain Typing. Am J Trop Med Hyg 96:358-367
Parameswaran, Poornima; Wang, Chunling; Trivedi, Surbhi Bharat et al. (2017) Intrahost Selection Pressures Drive Rapid Dengue Virus Microevolution in Acute Human Infections. Cell Host Microbe 22:400-410.e5
Bortell, Nikki; Flynn, Claudia; Conti, Bruno et al. (2017) Osteopontin Impacts West Nile virus Pathogenesis and Resistance by Regulating Inflammasome Components and Cell Death in the Central Nervous System at Early Time Points. Mediators Inflamm 2017:7582437

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