We are seeking funds in response to NOT-OD-09-058 """"""""NIH American Recovery Act Funds for Competitive Revision Applications"""""""" to allow us to expand our specific aim 3 of our approved parent award. All three specific aims of our parent award are based on molecular, cellular, and biochemical studies to elucidate three novel steps in the regulation of inflammasome assembly and activity in macrophages. With this revision, we are proposing to include a novel sub aim to our approved aim 3 to translate our in vitro studies into in vivo animal models. Based on our progress with specific aim 3, we propose to generate a macrophage-specific conditional knock out mouse to study inflammasome activity in knock-out macrophages in vitro, and in inflammasome- dependent disease models in vivo. We request funds to cover the generation of this mouse model and that of technical support for the animal work. This revision will increase the scope of our approved parent award and enable our laboratory to establish mouse disease models. Funding of this revision will support the objectives of the American Recovery and Reinvestment Act of 2009 to create """"""""new research employment opportunities"""""""" and """"""""to bolster small US businesses and the US economy"""""""".

Public Health Relevance

Excessive production of IL-12 and IL-18 are directly responsible for the symptoms of an increasing number of inflammatory diseases with destructive pathogenesis, including some of the most common diseases of industrialized nations, such as arthritis, asthma, inflammatory bowel disease, ulcerative colitis, atherosclerosis, periodontitis, type 2 Diabetes, lung fibrosis, multiple sclerosis, Alzheimer's disease, stroke, or cancer. Currently there are no effective treatments available, causing patient's life-long symptoms and a huge economical and financial impact on our social and medical systems. Therefore, this study on novel mechanisms that regulate production of IL-12 and IL-18 is expected to positively affect human health by providing the basis for the development of novel and improved treatment options for preventing uncontrolled release of IL-12 and IL-18 in patients suffering from inflammatory diseases.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
3R01GM071723-04S1
Application #
7844180
Study Section
Special Emphasis Panel (ZRG1-IMM-F (95))
Program Officer
Marino, Pamela
Project Start
2009-09-30
Project End
2012-08-31
Budget Start
2009-09-30
Budget End
2012-08-31
Support Year
4
Fiscal Year
2009
Total Cost
$388,306
Indirect Cost
Name
Northwestern University at Chicago
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
005436803
City
Chicago
State
IL
Country
United States
Zip Code
60611
Khare, Sonal; Radian, Alexander D; Dorfleutner, Andrea et al. (2016) Measuring NLR Oligomerization I: Size Exclusion Chromatography, Co-immunoprecipitation, and Cross-Linking. Methods Mol Biol 1417:131-43
Cuda, Carla M; Misharin, Alexander V; Khare, Sonal et al. (2015) Conditional deletion of caspase-8 in macrophages alters macrophage activation in a RIPK-dependent manner. Arthritis Res Ther 17:291
de Almeida, Lucia; Khare, Sonal; Misharin, Alexander V et al. (2015) The PYRIN Domain-only Protein POP1 Inhibits Inflammasome Assembly and Ameliorates Inflammatory Disease. Immunity 43:264-76
Radian, Alexander D; Khare, Sonal; Chu, Lan H et al. (2015) ATP binding by NLRP7 is required for inflammasome activation in response to bacterial lipopeptides. Mol Immunol 67:294-302
Dorfleutner, Andrea; Chu, Lan; Stehlik, Christian (2015) Inhibiting the inflammasome: one domain at a time. Immunol Rev 265:205-16
Chu, Lan Hoang; Gangopadhyay, Anu; Dorfleutner, Andrea et al. (2015) An updated view on the structure and function of PYRIN domains. Apoptosis 20:157-73
Cuda, Carla M; Misharin, Alexander V; Gierut, Angelica K et al. (2014) Caspase-8 acts as a molecular rheostat to limit RIPK1- and MyD88-mediated dendritic cell activation. J Immunol 192:5548-60
Khare, Sonal; Ratsimandresy, Rojo A; de Almeida, LĂșcia et al. (2014) The PYRIN domain-only protein POP3 inhibits ALR inflammasomes and regulates responses to infection with DNA viruses. Nat Immunol 15:343-53
Radian, Alexander D; de Almeida, Lucia; Dorfleutner, Andrea et al. (2013) NLRP7 and related inflammasome activating pattern recognition receptors and their function in host defense and disease. Microbes Infect 15:630-9
Ratsimandresy, Rojo A; Dorfleutner, Andrea; Stehlik, Christian (2013) An Update on PYRIN Domain-Containing Pattern Recognition Receptors: From Immunity to Pathology. Front Immunol 4:440

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