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High-probability grants
According to our matching algorithm, Andrea McQuate is the likely recipient of the following grants.
| Years |
Recipients |
Code |
Title / Keywords |
Matching
score |
| 2018 — 2021 |
Mcquate, Andrea |
F32Activity Code Description:
To provide postdoctoral research training to individuals to broaden their scientific background and extend their potential for research in specified health-related areas. |
Regulation of Mitochondrial Networks in Hair Cells of the Zebrafish Lateral Line @ University of Washington
PROJECT SUMMARY Hearing impairments resulting from inner ear dysfunction have limited treatment options and no permanent solution. Within the inner ear, hair cells of the cochlea are particularly sensitive to outside insult and genetic perturbations. The high metabolic demand on hair cells suggests they might be vulnerable to alterations in their mitochondria. The current proposal seeks to evaluate the characteristics of mitochondria within hair cells, including their volume, connectivity, and dynamism, with an overall hypothesis that hair cells maintain a unique mitochondrial phenotype to fit their metabolic demand. The proposal uses hair cells of the zebrafish lateral line as a model system for hair cells in the inner ear. Preliminary data show that lateral line hair cell mitochondria form vastly interconnected networks, with over 70% of the total mitochondrial volume within a cell consisting of a single mitochondrion. These networks are dynamic; constantly undergoing fusion and fission to regulate size. The proposal will test if these mitochondrial networks are specific to hair cells, what genes are involved in maintaining this phenotype, and if it is regulated by mechanotransduction. These approaches to studying mitochondria are novel in that they seek to study mitochondrial dynamics (1) quantitatively, when most previous studies to date rely on subjective classifications and (2) in three dimensions. The results of this proposal will provide new insights into what hair cells require to maintain their efficacy, and how changes in subcellular structures could result in hearing impairment or loss.
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