Novel correlations in cellular, molecular and structural alterations in experimental juvenile myopia

Active Project Grant Awarded Last action

Award ID
R21EY036560
Recipient
Awarding agency
Obligated
$447,146

Award facts

Assistance listing
93.867 Vision Research
Completion date 72% complete
Originally
Place of performance
Portland, OR 97232, USA

Award details come from USAspending.gov.

Description

Abstract
Myopia is a complex and multigenic refractive disorder that does not only impair vision but also increases the risk factor to develop irreversible blinding diseases later in life. While scleral remodeling and decreased connective tissue synthesis have been shown to underly the excessive axial elongation in myopia, the specifics of micro- and macro-level interactions remain elusive. In this proposal, we plan to use tree shrew model of myopia. We hypothesize that infiltration of peripheral immune cells, including myeloid cells correlate with myelin alterations, axonal/neuronal damage ultimately leading to myopia development and progression. We plan to conduct this study in two specific aims. First, we will assess alterations in axonal health, myelin and immune cell infiltration in the optic nerve head (ONH) using immunohistochemical and novel spatial protein profiling by nanostring in moderate and high myopia. Next, we plan to correlate these micro-level alterations with tissue level alterations from optical coherent tomography (OCT) images of the ONH. We predict that alterations in axonal health, myelin, and inflammation will coincide with the ONH remodeling visualized by OCT in the tree shrew model of myopia. This study will bridge the GAP in our understanding of localized molecular mechanisms and pathogenesis involved in ocular remodeling during myopia development. IT will ultimately open a whole new avenue towards designing and developing novel treatment strategies that counteract the driving forces of myopia development and progression.

Transactions

Action Obligated Date
Amendment $0
Amendment $236,612
Original award $210,534

Subawards

Subrecipient Amount Awarded
University Of Alabama At Birmingham Dr. El Hamdaoui and his technician will be responsible for performing (1) experimental procedures to induce myopia in tree shrews, (2) longitudinal in vivo… $194,431

Quick answers

Who received award R21EY036560?

R21EY036560 was awarded to Legacy Emanuel Hospital & Health Center by National Eye Institute (National Institutes of Health) on September 1, 2024.

How much is award R21EY036560 worth?

$447,146 has been obligated on R21EY036560.

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