Abstract
The outer retina contains cells essential in the first stage of visual processing. The phototransduction cascade is initiated within photoreceptor outer segments, which are heavily supported by the adjoining retinal pigmented epithelial cells. Many diseases manifest by degeneration of these cells, which invariably lead to visual impairment. Unfortunately the majority of these conditions are currently untreatable. Pluripotent stem cells are unique in that they can differentiate into any somatic cell type, including retinal cells. As such, patient-specific pluripotent stem cells provide a powerful platform for studying disease pathogenesis and mechanisms through the generation of in vitro models. Additionally, these cells may also provide a renewable source of material for cellular transplantation to replace defective or degenerative retinal cells with the aim of restoring visual function. In this review, we discuss stem cell-based strategies for understanding and treating diseases of the outer retina.
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Abbreviations
- ABCA4:
-
ATP-binding cassette, subfamily A, member 4
- AMD:
-
Age-related macular degeneration
- BEST1:
-
Bestrophin
- CHM:
-
Choroideremia
- CRD:
-
Cone-rod dystrophy
- CRX:
-
Cone-rod homeobox
- EFEMP1:
-
Epidermal growth factor-containing fibulin-like extracellular matrix protein 1
- ERG:
-
Electroretinography
- hESC:
-
Human embryonic stem cells
- iPSC:
-
Induced pluripotent stem cells
- LCA:
-
Leber congenital amaurosis
- MAK:
-
Male germ-associated kinase
- OAT:
-
Ornithine aminotransferase
- PR:
-
Photoreceptor
- PRPH2:
-
Peripherin 2
- PSC:
-
Pluripotent stem cell
- RCS:
-
Royal College of Surgeon
- REP1:
-
Rab escort protein-1
- RHO:
-
Rhodopsin
- RP:
-
Retinitis pigmentosa
- RP1:
-
Retinitis pigmentosa 1
- RP9:
-
Retinitis pigmentosa 9
- RPE:
-
Retinal pigmented epithelium
- RPE65:
-
Retinal pigment epithelium-specific protein 65 kDa
- RPGR:
-
Retinitis pigmentosa GTPase regulator
- TIMP3:
-
Tissue inhibitor of metalloproteinases-3
- USH2A:
-
Usher syndrome 2A
- VEGF:
-
Vascular endothelial growth factor
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Acknowledgments
This work was supported by funding from the National Stem Cell Foundation of Australia, the Ophthalmic Research Institute of Australia, and the Australian National Health and Medical Research Council (Project Grant 1059369 and a Centres of Research Excellence Grant 1023911). AWH is supported by an Australian National Health and Medical Research Council Peter Doherty Fellowship. CERA receives Operational Infrastructure Support from the Victorian Government.
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Hewitt, A.W., Davidson, K.C. (2014). Stem Cell Strategies for Diseases of the Outer Retina. In: Pébay, A. (eds) Regenerative Biology of the Eye. Stem Cell Biology and Regenerative Medicine. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0787-8_7
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