期刊
JOURNAL OF GENETICS
卷 88, 期 4, 页码 399-407出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12041-009-0061-7
关键词
primary cilia; centrosome; transition zone; ciliopathies; photoreceptor; retinal degeneration; retina; RPGR; RP2; CEP290; RPGRIP1L; NPHP
资金
- National Eye Institute
- National Institutes of Health [EY007961]
- Foundation Fighting Blindness (FFB)
- Midwest Eye Banks and Transplantation Center
Dysfunction of primary cilia due to mutations in cilia-centrosomal proteins is associated with pleiotropic disorders. The primary (or sensory) cilium of photoreceptors mediates polarized trafficking of proteins for efficient phototransduction. Retinitis pigmentosa GTPase regulator (RPGR) is a cilia-centrosomal protein mutated in >70% of X-linked RP cases and 10%-20% of simplex RP males. Accumulating evidence indicates that RPGR may facilitate the orchestration of multiple ciliary protein complexes. Disruption of these complexes due to mutations in component proteins is an underlying cause of associated photoreceptor degeneration. Here, we highlight the recent developments in understanding the mechanism of cilia-dependent photoreceptor degeneration due to mutations in RPGR and RPGR-interacting proteins in severe genetic diseases, including retinitis pigmentosa, Leber congenital amaurosis (LCA), Joubert syndrome, and Senior-Loken syndrome, and explore the physiological relevance of photoreceptor ciliary protein complexes.
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