




Gilhooley Laboratory
Mitochondrial Optic Neuropathies & ipRGC Biology
Understanding intrinsically photosensitive retinal ganglion cells' (ipRGCs) resistance to disease

Michael J Gilhooley MD PhD
Assistant Professor in Residence
Jules Stein Eye Institute
University of California, Los Angeles
Research in our lab centers on the intrinsically photosensitive retinal ganglion cells of the optic nerve (ipRGCs) and the fascinating protein that renders them sensitive to light (melanopsin). We are particularly interested in defining the mechanisms by which ipRGCs survive in optic nerve disease, in some cases long after vision is lost as more conventional types of retinal ganglion cell die.
This survival is particularly notable in the inherited optic neuropathies — Leber Hereditary Optic Neuropathy (LHON) and Dominant Optic Atrophy (DOA), caused by mutations in genes central to mitochondrial function (such as OPA1 in DOA). Uncovering why ipRGCs are so resilient to mitochondrial dysfunction in these eye diseases is essential not only to develop novel treatments to protect sight, but potentially in more common forms of neurodegeneration where mitochondrial dysfunction is implicated.
Key research questions include:
- Why are ipRGCs selectively resistant to degeneration in inherited optic neuropathies?
- What role does melanopsin signaling play in conferring neuroprotection?
- Can the survival mechanisms of ipRGCs be harnessed to protect conventional retinal ganglion cells from disease?
- How does ipRGC biology differ across disease states such as OPA1 and LHON?
Dr. Gilhooley combines his clinical expertise in inherited optic neuropathies with basic science investigation to translate findings from ipRGC biology toward neuroprotective therapies for patients.
Recent Publications
Retinal Ganglion Cell Diversity in Disease: Clinical Implications and Type-Specific Evaluation.
Makam R, Rider AT, Yu-Wai-Man P, Gilhooley MJ
Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society (2025)
View PublicationInherited Optic Neuropathies: Real-World Experience in the Paediatric Neuro-Ophthalmology Clinic
Michael James Gilhooley, Naz Raoof, Patrick Yu-Wai-Man, Mariya Moosajee
Genes (2024)
View PublicationOPA1 Dominant Optic Atrophy: Pathogenesis and Therapeutic Targets
David C. S. Wong, Joshua P. Harvey, Neringa Jurkute, Sara M. Thomasy, Mariya Moosajee, Patrick Yu-Wai-Man, Michael J. Gilhooley
Journal of Neuro-Ophthalmology (2023)
View PublicationA systematic comparison of optogenetic approaches to visual restoration.
Gilhooley MJ, Lindner M, Palumaa T, Hughes S, Peirson SN, Hankins MW
Molecular therapy. Methods & clinical development (2022)
View PublicationON-bipolar cell gene expression during retinal degeneration: Implications for optogenetic visual restoration.
Michael J. Gilhooley, Doron G. Hickey, Moritz Lindner, Teele Palumaa, Steven Hughes, Stuart N. Peirson, Robert E. MacLaren, Mark W. Hankins
Experimental eye research (2021)
View Publication“Genetic and clinical findings in an ethnically diverse retinitis pigmentosa cohort associated with pathogenic variants in EYS”
Olivia Cundy, Suzanne Broadgate, Stephanie Halford, Robert E. MacLaren, Morag E. Shanks, Penny Clouston, Michael J. Gilhooley, Susan M. Downes
Eye (2021)
View PublicationThe functional characteristics of optogenetic gene therapy for vision restoration
Moritz Lindner, Michael J. Gilhooley, Stuart N. Peirson, Steven Hughes, Mark W. Hankins
Cellular and Molecular Life Sciences (2021)
View PublicationFrom Transcriptomics to Treatment in Inherited Optic Neuropathies
Michael James Gilhooley, Nicholas Owen, Mariya Moosajee, Patrick Yu Wai Man
Genes (2021)
View PublicationExpression and Localization of Kcne2 in the Vertebrate Retina.
Lindner M, Gilhooley MJ, Palumaa T, Morton AJ, Hughes S, Hankins MW
Investigative ophthalmology & visual science (2020)
View PublicationMelanopsin: photoreceptors, physiology and potential
Teele Palumaa, Michael J Gilhooley, Aarti Jagannath, Mark W Hankins, Steven Hughes, Stuart N Peirson
Current Opinion in Physiology (2018)
View Publication