Mechanism of mitochondria-induced myokine activation and implications for healthy aging

Active Project Grant Awarded Last action

Award ID
F31AG087692
Recipient
Awarding agency
Obligated
$271,574

Award facts

Assistance listing
93.866 Aging Research
Completion date 41% complete
Place of performance
Syracuse, NY 13210, USA

Award details come from USAspending.gov.

Description

Abstract
Excess body weight is a significant contributor to mortality rates in the united states, with class 2+ obesity increasing the risk of mortality by up to 91%. Physical activity plays a crucial role in managing prevalent diseases such as obesity, type 2 diabetes, and cardiovascular disease. Recently, exercise-stimulated myokines have been found to play a crucial role in inter-tissue signaling, promoting metabolic health and cardioprotection. However, the mechanism by which myokine expression is activated is poorly understood. Furthermore, therapeutically effective myokines are yet to be identified. Mitochondrial precursor overaccumulation stress (mpos) is a novel mediator of mitochondria-induced stress signaling, triggered by mitochondrial protein import stress and the accumulation of unimported mitochondrial proteins in the cytosol. In our preliminary study, we found the drastic activation of candidate myokines in a newly established mouse model of mpos. This is accompanied with a strong lean phenotype and increased cardiac ejection fraction. These observations invited the hypothesis that mpos may mediate myokine signaling, which ultimately promotes metabolic and cardiac health. In this predoctoral fellowship application, we will test the hypothesis that mitochondrial protein import stress can specifically induce myokine signaling by specific transcriptional factors in a bioenergetic-independent manner (specific aim 1). We will also test the hypothesis that mpos-induced myokine release mediates FAT loss and the improvement of cardiac health during aging (specific aim 2). Success of the proposed research represents a significant advancement in understanding mitochondria-induced myokine signaling and its potential implications for metabolic and cardiovascular health. Utilizing the murine and cell-based models, this study will uncover the mechanisms underlying myokine signaling and its impact on inter- tissue communication. These findings may lead to the discovery of novel health- promoting myokines and identification of therapeutic targets for metabolic and cardiovascular diseases, offering potential interventions to improve overall health, especially for aging populations and individuals unable to engage in physical exercise.

Transactions

Action Obligated Date
Amendment $55,114
Amendment $54,538
Amendment $0
Amendment $0
Amendment $0
Amendment $0
Amendment $0
Amendment $53,974
Amendment $0
Amendment $53,974
Amendment $53,974
Original award $0
Show all 12

Quick answers

Who received award F31AG087692?

F31AG087692 was awarded to The Research Foundation For The State University Of New York by National Institute on Aging (National Institutes of Health) on December 20, 2024.

How much is award F31AG087692 worth?

$271,574 has been obligated on F31AG087692.

On GovTribe

See this award's full record

  • Every transaction and subaward
  • The recipient's other awards and teaming partners
  • Similar grant awards
  • Ask GovTribe AI about this award