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CaMKII in global cerebral ischemia: mechanisms and therapeutic intervention

Award Number: R01NS118786
ORGANIZATION: NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 01/15/2021
PERIOD OF PERFORMANCE END DATE: 11/30/2025

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CaMKII in global cerebral ischemia: mechanisms and therapeutic intervention - Project Summary/Abstract The Ca2+/calmodulin-dependent protein kinase II (CaMKII) is a central mediator of two opposing forms of NMDA- receptor (NMDAR)-dependent synaptic plasticity: long-term potentiation (LTP) and depression (LTD). Pathological overstimulation of NMDARs during cerebral ischemia causes excitotoxic neuronal cell death, and we have recently shown that CaMKII mediates also the neuronal damage after global cerebral ischemia (GCI). Importantly, in vivo injection of our optimized CaMKII inhibitor (tatCN19o) provided significant neuroprotection after GCI models that closely mimic the most relevant human conditions: cardiopulmonary resuscitation (CPR) after cardiac arrest in mice or after ventricular fibrillations in pig (unpublished). CaMKII inhibition (i) was done at a highly clinically relevant timepoint for these conditions (30 min after CPR); (ii) was effective also in conjunction with current standard of care (therapeutic hypothermia); and (iii) protected not only from neuronal cell death but also from the long-lasting functional impairments in LTP that are seen in the surviving neurons. Here, three connected but independent aims will directly promote, our mechanistic understanding of CaMKII- mediated regulation of neuronal cell death and LTP impairment. Specifically, the project will investigate (1) the cross-talk of CaMKII autonomy mechanisms in mediating ischemia-induced neuronal damage, (2) a possible dual role of CaMKII in neuronal cell death versus survival, and (3) mechanisms that underly the CaMKII- dependent long-term LTP impairment of the neurons that survive after ischemia. Together, the results of this study will significantly advance our understanding of the molecular mechanisms underlying ischemic neuronal cell death. Additionally, they will inform future development of a therapy in humans.


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 = $349,875 )
2025	2025	THE REGENTS OF THE UNIVERSITY OF COLORADO	13001 E 17TH PL STE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	5	11/29/2024	NON-COMPETING CONTINUATION	$349,875
														Subtotal = $349,875

Issue Date FY: 2024 ( Subtotal = $377,088 )
2024	2024	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	4	12/7/2023	NON-COMPETING CONTINUATION	$349,875
2024	2024	THE REGENTS OF THE UNIVERSITY OF COLORADO	13001 E 17TH PL STE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	001	4	5/3/2024	NON-COMPETING CONTINUATION	$27,213
														Subtotal = $377,088

Issue Date FY: 2023 ( Subtotal = $388,750 )
2023	2023	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	001	3	2/1/2023	NON-COMPETING CONTINUATION	$38,875
2023	2023	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	3	12/5/2022	NON-COMPETING CONTINUATION	$349,875
														Subtotal = $388,750

Issue Date FY: 2022 ( Subtotal = $388,750 )
2022	2022	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	001	2	3/22/2022	NON-COMPETING CONTINUATION	$38,875
2022	2022	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	2	11/24/2021	NON-COMPETING CONTINUATION	$349,875
														Subtotal = $388,750

Issue Date FY: 2021 ( Subtotal = $388,750 )
2021	2021	REGENTS OF THE UNIVERSITY OF COLORADO, THE	13001 E 17TH PLACE F428	AURORA	CO	80045	ADAMS	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	1	1/14/2021	NEW	$388,750
														Subtotal = $388,750

Grand Total All Awards = $1,893,213

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CaMKII in global cerebral ischemia: mechanisms and therapeutic intervention

Award Number: R01NS118786

ORGANIZATION: NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 01/15/2021

PERIOD OF PERFORMANCE END DATE: 11/30/2025

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