HHS Recovery Act Recipient Reporting Readiness Tool

Step 4. Review and Copy the Grant Awards Data

TAGGS provides some – but not all – of the data needed for the Recipient Report. Recipients are responsible for directly collecting and reporting all required data to FederalReporting.gov. Data that HHS does not currently collect are highlighted in yellow. Do not copy this highlighted information. Please enter the appropriate data for your organization in these required fields. For assistance with entering these data please contact FederalReporting.gov.

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Prime Recipient Report

Award Detail for: CHROMATIN MODIFICATIONS AND VULNERABILITY TO GLUTAMATE TOXICITY
Recipient Name:GEORGETOWN UNIVERSITY
DUNS Number: 049515844
37TH & O STREETS, NW
WASHINGTON, DC 20057

Reporting Information

Award Type*: Grant

Award Number*: 1R21NS056057-01A2

Final Report*: Recipient responsible for this data

Award Recipient Information

Recipient DUNS Number*: 049515844

Recipient Account Number: Recipient responsible for this data

Recipient Congressional District*: Not Available

Award Information

Funding Agency Code*: 7529

Awarding Agency Code*:7529

Award Date*: 05-01-2009

Amount of Award*: $ 191,875

Program Source (TAS)*: 750901

CFDA Number*: 93.701

Sub Account Number for Program Source (TAS)*: Recipient responsible for this data

Total Number of Sub Awards to Individuals*: Recipient responsible for this data

Total Amount of Sub Awards to Individuals*: Recipient responsible for this data

Total Number of Payments to Vendors less than $25,000/award*: Recipient responsible for this data

Total Amount of Payments to Vendors less than $25,000/award*: Recipient responsible for this data

Total Number of Sub Awards less than $25,000/award*: Recipient responsible for this data

Total Amount of Sub Awards less than $25,000/award*: Recipient responsible for this data

Award Description* DESCRIPTION (provided by applicant): Excessive activation of ionotropic glutamate receptors increases oxidative stress, which contributes to the neurodegeneration observed following neurological insults such as ischemia and seizures, as well as contributes to neuronal death in neurodegenerative diseases (Alzheimer's, Parkinson's, etc.). From a clinical perspective, it is a clear threat to brain function and to survival. It is believed that generation of reactive oxygen species and ensuing oxidative stress is a major contributor to glutamate toxicity. At the same time, oxidative stress is a major cause of DNA damage, which is also a common component of neuronal injury. DNA damage may contribute to neuronal loss and injury not only after acute brain insults but also under various chronic neurodegenerative conditions, such as Alzheimer's, Huntington's, and Parkinson's diseases, amyotrophic lateral sclerosis, ataxia telangiectasia and many other neurological disorders. The most lethal form of DNA damage, the double strand breaks (DSBs), and the ability of cells to repair them has not yet been directly demonstrated following excessive stimulation of glutamate receptors. While limited evidence suggests the importance of DSBs and their repair machinery in vulnerability to glutamate-induced injury, no systematic direct studies have been done in mature neurons. We have developed a sensitive model to start addressing the role of DSB DNA damage in neuronal vulnerability to glutamate-mediated insults using phosphorylation of histone variant H2A.X, which occurs rapidly following DNA DSBs. Our general working hypothesis is that the consequences of unrepaired DSBs in terminally differentiated neurons are critical contributors to neuronal demise in the aftermath of excessive excitation. Conversely, successful repair of these breaks may increase neuronal survival following glutamate-driven insults. Specific Aims will test the following specific hypotheses aiming at proving this concept: 1) Increased phosphorylation of histone H2AX following activation of ionotropic glutamate receptors will result in increased DSB repair; this hypothesis we will tested by measuring DSB repair activity in rat cortical neuronal cultures; 2) Impairment of H2AX phosphorylation will result in increased glutamate toxicity due to the disruption of the DSB repair pathway. To test this, we will examine vulnerability of neurons from H2AX-/- transgenic mice to vulnerability to glutamate toxicity and evaluate their DSB repair capabilities. We expect that H2AX-/- neurons will be more vulnerable to glutamate toxicity and demonstrate diminished DSB repair as compared to wild-type cells. Moreover, we will reconstitute functional histone H2AX in H2AX-/- neurons using lentiviral expression and evaluate the restoration of their resistance to glutamate toxicity. Testing these hypotheses may reveal a novel common mechanism contributing to neurotoxicity in a variety of neurodegenerative disorders, will lead to identification of attractive new targets for therapy of these disorders, and will lay a foundation for future interventional studies in vivo targeting DSB repair pathway in neurons. PUBLIC HEALTH RELEVANCE: Damage to DNA is a common component of neuronal injury. It may contribute to neuronal loss and injury not only after acute brain insult (e.g., prolonged seizures, stroke, TBI) but also under various chronic neurodegenerative conditions, such as Alzheimer's disease, Huntington's disease, Parkinson's disease, amyotrophic lateral sclerosis, ataxia telangiectasia, among other neurological disorders that currently have no effective cure. Excessive excitation also contributes to many of these pathologies and is believed to be the major cause of DNA damage. However, little is known about the mechanisms responsible for the excitation- driven formation of the most lethal type of DNA damage (double strand breaks) in neurons and the ability of nerve cells to withstand this damage. This proposal will examine these mechanisms and will lay the foundation for identification of new targets for therapy of a broad variety of neurological conditions relevant to excitotoxicity.

Project Information

Project Name or Project/Program Title*: CHROMATIN MODIFICATIONS AND VULNERABILITY TO GLUTAMATE TOXICITY

Project Status*: Recipient responsible for this data

Total Federal Amount of ARRA Funds Received/Invoiced*: Recipient responsible for this data

Number of Jobs*: Recipient responsible for this data

Description of Jobs Created*: Recipient responsible for this data

Quarterly Activities/Project Description*: Recipient responsible for this data

Activity Code (NAICS or NTEE-NPC)*: Recipient responsible for this data

Total Federal Amount of ARRA Expenditure* (Enter the cumulative total amount of Recovery Funds received that were expended to projects or activities. Refer to the Data Model for details on how to calculate this amount.): Recipient responsible for this data

Total Federal ARRA Infrastructure Expenditure Recipient responsible for this data

Infrastructure Contact Name: Recipient responsible for this data

Infrastructure Contact Email: Recipient responsible for this data

Infrastructure Contact Phone: Recipient responsible for this data

Infrastructure Contact Phone Ext: Recipient responsible for this data

Infrastructure Contact Street Address 1: 37TH & O STREETS, NW

Infrastructure Contact Street Address 2: Not Available

Infrastructure Contact Street Address 3: Recipient responsible for this data

Infrastructure City: WASHINGTON

Infrastructure State: DC

Infrastructure ZIP Code+4: 20057

Infrastructure Purpose and Rationale (If applicable, enter an explanation about how the infrastructure investment will contribute to one or more purposes of the Recovery Act. Refer to the Data Model for details on what to report. 4000 characters or less.): Recipient responsible for this data

Primary Place of Performance

Street Address 1: 3970 RESERVOIR RD, N.W.

Street Address 2: WASHINGTON

City*: WASHINGTON

State*: DC

ZIP Code+4*: 20057

Congressional District*: Not Available

Country*: US

Recipient Highly Compensated Officers

Prime Recipient Indication of Reporting Applicability*: Recipient responsible for this data

1. Officer Name and Compensation: Recipient responsible for this data
2. Officer Name and Compensation: Recipient responsible for this data
3. Officer Name and Compensation: Recipient responsible for this data
4. Officer Name and Compensation: Recipient responsible for this data
5. Officer Name and Compensation: Recipient responsible for this data

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