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Future possibilities in glaucoma therapy. 2010

Joanna Wierzbowska, and Jacek Robaszkiewicz, and Małgorzata Figurska, and Andrzej Stankiewicz
Department of Ophthalmology, Military Medical Institute, Warsaw, Poland. joanna.wierzbowska@gmail.com

Glaucoma is a group of eye diseases causing irreversible optic nerve damage. This review presents 4 elements of future glaucoma treatment strategies: baroprotection, vasoprotection, neuroprotection and gene therapy. New baroprotection includes compounds that alter the actin cytoskeleton (rho-kinase inhibitors, latrunculin, cytochalasin), new drugs that enhance aqueous outflow via the trabecular meshwork (statins, steroid antagonists) and via the uveoscleral route (EP2 agonists, 5-HT2 agonists), as well as new classes of components that suppress aqueous humor formation (cannabinoids). Vasoprotection includes blocking reperfusion injury (NOS-2 inhibitors, endothelin blockers, MMP-9 inhibitors). Concerning neuroprotection antiamyloids antibodies, erythropoietin and caspase inhibitors are discussed. Gene therapy may target various effectors: the trabecular meshwork (cytoskeleton regulatory proteins, miocyllin, MMPs), the ciliary body epithelium (genes modifying aqueous humor production, neuropeptides), the ciliary body cells (MMPs, genes of local PGs biosynthesis, ciliary muscle relaxants), the retinal ganglion cells (neurotrophin genes, anti-apoptotic genes), Müller cells (neurotrophins, GLAST) and conjunctiva (gene of chloramphenicol acetyltransferase, inhibitor p21). Experimental studies on the graft mesenchymal stem cells and mature retinal cells to replace the dead retinal ganglion cells are advanced. Immunotherapy, offering a vaccination, providing protection against loss of retinal ganglion cells, has been investigated.

UI MeSH Term Description Entries
D007429 Intraocular Pressure The pressure of the fluids in the eye. Ocular Tension,Intraocular Pressures,Ocular Tensions,Pressure, Intraocular,Pressures, Intraocular,Tension, Ocular,Tensions, Ocular
D011465 Prostaglandins, Synthetic Compounds obtained by chemical synthesis that are analogs or derivatives of naturally occurring prostaglandins and that have similar activity. PG Analog,PG Analogs,Prostaglandin Analog,Prostaglandin Analogs,Prostaglandin Analogue,Synthetic Prostaglandin,Prostaglandin Analogues,Synthetic Prostaglandins,Analog, PG,Analog, Prostaglandin,Analogs, PG,Analogs, Prostaglandin,Analogue, Prostaglandin,Analogues, Prostaglandin,Prostaglandin, Synthetic
D005901 Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed) Glaucomas
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001082 Aqueous Humor The clear, watery fluid which fills the anterior and posterior chambers of the eye. It has a refractive index lower than the crystalline lens, which it surrounds, and is involved in the metabolism of the cornea and the crystalline lens. (Cline et al., Dictionary of Visual Science, 4th ed, p319) Aqueous Flare,Intraocular Fluid,Aqueous Flares,Aqueous Humors,Flare, Aqueous,Fluid, Intraocular,Fluids, Intraocular,Humor, Aqueous,Humors, Aqueous,Intraocular Fluids
D012165 Retinal Ganglion Cells Neurons of the innermost layer of the retina, the internal plexiform layer. They are of variable sizes and shapes, and their axons project via the OPTIC NERVE to the brain. A small subset of these cells act as photoreceptors with projections to the SUPRACHIASMATIC NUCLEUS, the center for regulating CIRCADIAN RHYTHM. Cell, Retinal Ganglion,Cells, Retinal Ganglion,Ganglion Cell, Retinal,Ganglion Cells, Retinal,Retinal Ganglion Cell
D014129 Trabecular Meshwork A porelike structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates to the SCHLEMM'S CANAL. Meshwork, Trabecular,Meshworks, Trabecular,Trabecular Meshworks
D015316 Genetic Therapy Techniques and strategies which include the use of coding sequences and other conventional or radical means to transform or modify cells for the purpose of treating or reversing disease conditions. Gene Therapy,Somatic Gene Therapy,DNA Therapy,Gene Therapy, Somatic,Genetic Therapy, Gametic,Genetic Therapy, Somatic,Therapy, DNA,Therapy, Gene,Therapy, Somatic Gene,Gametic Genetic Therapies,Gametic Genetic Therapy,Genetic Therapies,Genetic Therapies, Gametic,Genetic Therapies, Somatic,Somatic Genetic Therapies,Somatic Genetic Therapy,Therapies, Gametic Genetic,Therapies, Genetic,Therapies, Somatic Genetic,Therapy, Gametic Genetic,Therapy, Genetic,Therapy, Somatic Genetic
D016923 Cell Death The termination of the cell's ability to carry out vital functions such as metabolism, growth, reproduction, responsiveness, and adaptability. Death, Cell

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