ArticlePloS one2021
The role of aquaporin-4 in optic nerve head astrocytes in experimental glaucoma.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 16 citations in OpenAlex.
- The 5-HT1A receptor antagonist WAY-100635 maleate promotes retinal ganglion cell differentiation and protects the retino-visual circuits.Communications medicine · 2026Article
- The protecting role of Ganoderma lucidum polysaccharides on the retinal neurovascular units in rats with retinal ischemia-reperfusion injury.Scientific reports · 2025Article
- Role of aquaporins in brain water transport and edema.Frontiers in neuroscience · 2025Review
- The Mechanisms of Neuroprotection by Topical Rho Kinase Inhibition in Experimental Mouse Glaucoma and Optic Neuropathy.Investigative ophthalmology & visual science · 2024Article
- The Ocular Glymphatic System-Current Understanding and Future Perspectives.International journal of molecular sciences · 2024Review
- IOP and glaucoma damage: The essential role of optic nerve head and retinal mechanosensors.Progress in retinal and eye research · 2024Review
- Large molecules from the cerebrospinal fluid enter the optic nerve but not the retina of mice.Fluids and barriers of the CNS · 2024Article
- Regional Gene Expression in the Retina, Optic Nerve Head, and Optic Nerve of Mice with Optic Nerve Crush and Experimental Glaucoma.International journal of molecular sciences · 2023Article
- Transcriptomic analysis of the ocular posterior segment completes a cell atlas of the human eye.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Regional Gene Expression in the Retina, Optic Nerve Head, and Optic Nerve of Mice with Experimental Glaucoma and Optic Nerve Crush.bioRxiv : the preprint server for biology · 2023Article
- Ocular manifestations of central insulin resistance.Neural regeneration research · 2023Article
- Transcriptomic Analysis of the Ocular Posterior Segment Completes a Cell Atlas of the Human Eye.bioRxiv : the preprint server for biology · 2023Article
- Aquaporins in Cardiovascular System.Advances in experimental medicine and biology · 2023Article
- Engineering a 3D hydrogel system to study optic nerve head astrocyte morphology and behavior.Experimental eye research · 2022Article
- Glymphatic imaging and modulation of the optic nerve.Neural regeneration research · 2022Article
- Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
purposeTo study aquaporin channel expression in astrocytes of the mouse optic nerve (ON) and the response to IOP elevation in mice lacking aquaporin 4 (AQP4 null).
methodsC57BL/6 (B6) and AQP4 null mice were exposed to bead-induced IOP elevation for 3 days (3D-IOP), 1 and 6 weeks. Mouse ocular tissue sections were immunolabeled against aquaporins 1(AQP1), 4(AQP4), and 9(AQP9). Ocular tissue was imaged to identify normal AQP distribution, ON changes, and axon loss after IOP elevation. Ultrastructure examination, cell proliferation, gene expression, and transport block were also analyzed.
resultsB6 mice had abundant AQP4 expression in Müller cells, astrocytes of retina and myelinated ON (MON), but minimal AQP4in prelaminar and unmyelinated ON (UON). MON of AQP4 nulls had smaller ON area, smaller axon diameter, higher axon density, and larger proportionate axon area than B6 (all p≤0.05). Bead-injection led to comparable 3D-IOP elevation (p = 0.42) and axonal transport blockade in both strains. In B6, AQP4 distribution was unchanged after 3D-IOP. At baseline, AQP1 and AQP9 were present in retina, but not in UON and this was unaffected after IOP elevation in both strains. In 3D-IOP mice, ON astrocytes and microglia proliferated, more in B6 than AQP4 null. After 6 week IOP elevation, axon loss occurred equally in the two mouse types (24.6%, AQP4 null vs. 23.3%, B6).
conclusionLack of AQP4 was neither protective nor detrimental to the effects of IOP elevation. The minimal presence of AQP4 in UON may be a vital aspect of the regionally specific phenotype of astrocytes in the mouse optic nerve head.
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