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Molecular Mechanisms of the Dysregulated Immune Response to Ebola Virus

Award Number: P01AI150585
ORGANIZATION: NATIONAL INSTITUTE OF ALLERGY & INFECTIOUS DISEASES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 04/15/2021
PERIOD OF PERFORMANCE END DATE: 03/31/2026

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Molecular Mechanisms of the Dysregulated Immune Response to Ebola Virus - OVERALL: PROJECT SUMMARY/ABSTRACT The central hypothesis of the proposed P01 Program is that Ebola virus infection leads to cell-type specific transcriptional, posttranscriptional, and posttranslational alterations that create aberrant counterproductive responses of immune cells, leading to a dysregulated immune response, which paradoxically produces “immune paralysis” and hyperinflammation. To address the hypothesis, three Research Projects are proposed. Research Project 1 focuses on pathogenic mechanisms at the transcriptional level, while Research Project 2 focuses on posttranscriptional events, and Research Project 3 focuses on posttranslational modifications, each contributing to the dysregulated immune response to Ebola virus. The dysregulated immune response is responsible for most of the pathogenesis observed in Ebola virus disease. All projects require the BSL-4 Core (Core B), which will be responsible for performing infections of human immune and nonimmune cells, nonhuman primates, and the initial steps of experiments that involve infectious virus. Importantly, Core B will provide each of the research projects samples from the same experimental samples insuring that data from each project can be compared directly—this is a unique feature of this P01 Program. The Proteogenomics Core (Core C) will be responsible for massive parallel sequencing and mass spectrometry-based studies. The Bioinformatics and Modeling Core (Core D) is critical for generating tools employed in the experimental designs, including statistical help for OMICS experiments, analyzing OMICS data and integrating OMICS data into networks that model the behavior of various cell populations infected with EBOV. The work done in Core D will synthesize a model to explain how transcriptional, posttranscriptional, and posttranslational responses of individual cell populations lead to immune dysregulation. The comprehensive picture painted by this collaborative effort will revolutionize our understanding of the immunopathogenesis of severe acute viral infections (e.g., immune imbalance seen in COVID-19). The Administrative Core (Core A) will be responsible for strategic planning, continual evaluation, and communication and coordination of activities among the various components of the project according to a detailed management plan. The expected outcomes will contribute substantially to our knowledge of the fundamental mechanisms of the immunopathogenesis of EBOV infections toward the development of effective countermeasures. The expected outcomes will include (1) detailed knowledge of transcriptional mechanisms leading to the dysregulated immune response to EBOV, (2) elucidation of the role of posttranscriptional mechanisms in the dysregulated immune response to EBOV, (3) elucidation of the role of posttranslational mechanisms in the dysregulated immune response to EBOV, and (4) experimental validation of the identified pathogenic mechanisms and their targeting. The proposed tightly coordinated and comprehensive analysis has not been done before for any virus.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2025 ( Subtotal = $2,295,613 )
2025	2025	UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON	301 UNIVERSITY BLVD	GALVESTON	TX	77555	GALVESTON	USA	Allergy and Infectious Diseases Research	000	5	4/16/2025	NON-COMPETING CONTINUATION	$2,295,613
														Subtotal = $2,295,613

Issue Date FY: 2024 ( Subtotal = $2,046,958 )
2024	2024	UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON	301 UNIVERSITY BLVD	GALVESTON	TX	77555	GALVESTON	USA	Allergy and Infectious Diseases Research	000	4	6/5/2024	NON-COMPETING CONTINUATION	$2,046,958
														Subtotal = $2,046,958

Issue Date FY: 2023 ( Subtotal = $2,213,113 )
2023	2023	UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON	301 UNIVERSITY BLVD	GALVESTON	TX	77555	GALVESTON	USA	Allergy and Infectious Diseases Research	000	3	3/20/2023	NON-COMPETING CONTINUATION	$2,213,113
														Subtotal = $2,213,113

Issue Date FY: 2022 ( Subtotal = $2,528,313 )
2022	2022	UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON	301 UNIVERSITY BLVD	GALVESTON	TX	77555	GALVESTON	USA	Allergy and Infectious Diseases Research	000	2	4/5/2022	NON-COMPETING CONTINUATION	$2,528,313
														Subtotal = $2,528,313

Issue Date FY: 2021 ( Subtotal = $2,258,675 )
2021	2021	UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON	301 UNIVERSITY BLVD	GALVESTON	TX	77555	GALVESTON	USA	Allergy and Infectious Diseases Research	000	1	4/16/2021	NEW	$2,258,675
														Subtotal = $2,258,675

Grand Total All Awards = $11,342,672

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Molecular Mechanisms of the Dysregulated Immune Response to Ebola Virus

Award Number: P01AI150585

ORGANIZATION: NATIONAL INSTITUTE OF ALLERGY & INFECTIOUS DISEASES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 04/15/2021

PERIOD OF PERFORMANCE END DATE: 03/31/2026

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