The BioAnalytical Chemistry Core B will provide expert bio-analytical chemistry support to the three projects of this Program Project Grant, 'Innate Responses to Microbial Infection'. These areas include mass spectrometry, protein chemistry &proteomics (Part I), and carbohydrate &lipid chemistries (Part II). In Part I, a comparative analysis of proteins, including discovery-based and quantitative mass spectrometry based proteomic methods, will be carried out on human neutrophil preparations, capsule-like material (CLM). and various traget proteins of interest. For Project 1 (Apicella). we will examine CLM perparations for the presence of a putative lipoprotein anchor and. if present, its identity and lipid modifications will be elucidated. As part of Project 2 (Nauseef). we will target human cell types that are critical to the reguation or dysregulation of the innate immune response and identify changes in protein composition and expression contained in detergent-resistant membrane microdomains or lipid rafts. For these experiments, various proteomic approaches will be used, including non-lableing and ITRAQ labeling strategies. Lastly, in Project 2 and 3 (Nauseef and Allen), a targeted examination of posttranslational modifications will be carried out with an emphasis on phosphorylation for several key host proteins invloved in immune regulation, i.e., p47phox, CaMKII and PKCa. For these experiment, a multireaction monitoring approach using stable isotope-labeled peptides will be employed for targeted quantitation. In Part II, we will use our expertise in mass spectrometry and carbohydrate and lipid chemistries for the structural characterization of host plasma phospholipids and capsule-like material (CLM). With Dr. Apicella (Project 1), we will carry out an exhaustive analysis of CLM preparations to identify its polysaccharide structure and its membrane anchor, likely a diacylglycerolphosphate-linked moiety. For Project 2 (Nauseef). an examination of the changes in phospholipid composition in recruited neutrophils will be undertaken. All experiments will be carried out in the Buck Institute's proteomics and mass spectrometry facility. This facility, of which Dr. Gibson is Director, is capable of both high-throughput and targeted analysis of complex mixtures of proteins, as well as detailed analysis of complex of carbohydrates and lipids. Dr. Gibson will also work with the NMR facility at lowa. who will acquire 1 and 2D NMR data from CLM preparations.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program Projects (P01)
Project #
5P01AI044642-14
Application #
8702910
Study Section
Special Emphasis Panel (ZAI1)
Project Start
Project End
Budget Start
2014-08-01
Budget End
2015-07-31
Support Year
14
Fiscal Year
2014
Total Cost
Indirect Cost
Name
University of Iowa
Department
Type
DUNS #
City
Iowa City
State
IA
Country
United States
Zip Code
52242
Nauseef, William M; Kubes, Paul (2016) Pondering neutrophil extracellular traps with healthy skepticism. Cell Microbiol 18:1349-57
McCracken, Jenna M; Kinkead, Lauren C; McCaffrey, Ramona L et al. (2016) Francisella tularensis Modulates a Distinct Subset of Regulatory Factors and Sustains Mitochondrial Integrity to Impair Human Neutrophil Apoptosis. J Innate Immun 8:299-313
Nauseef, William M (2016) Neutrophils, from cradle to grave and beyond. Immunol Rev 273:5-10
Chen, Linxiao; Valentine, Jenny L; Huang, Chung-Jr et al. (2016) Outer membrane vesicles displaying engineered glycotopes elicit protective antibodies. Proc Natl Acad Sci U S A 113:E3609-18
Ulland, Tyler K; Jain, Nidhi; Hornick, Emma E et al. (2016) Nlrp12 mutation causes C57BL/6J strain-specific defect in neutrophil recruitment. Nat Commun 7:13180
Kinkead, Lauren C; Allen, Lee-Ann H (2016) Multifaceted effects of Francisella tularensis on human neutrophil function and lifespan. Immunol Rev 273:266-81
Greenlee-Wacker, Mallary C (2016) Clearance of apoptotic neutrophils and resolution of inflammation. Immunol Rev 273:357-70
Greenlee-Wacker, Mallary; DeLeo, Frank R; Nauseef, William M (2015) How methicillin-resistant Staphylococcus aureus evade neutrophil killing. Curr Opin Hematol 22:30-5
Wang, Guoshun; Nauseef, William M (2015) Salt, chloride, bleach, and innate host defense. J Leukoc Biol 98:163-72
Mashruwala, Ameya A; Pang, Yun Y; Rosario-Cruz, Zuelay et al. (2015) Nfu facilitates the maturation of iron-sulfur proteins and participates in virulence in Staphylococcus aureus. Mol Microbiol 95:383-409

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