ArticleThe Journal of biological chemistry2015
Identification and Molecular Mechanisms of the Rapid Tonicity-induced Relocalization of the Aquaporin 4 Channel.
Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
72 citing papers in PubMed, 105 citations in OpenAlex.
- Spatial organization of AQP4 water channel expression in the human brain.Science advances · 2026Article
- LRBA organizes distinct vesicular trafficking systems in distal nephron segments for water and sodium conservation.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Adenosine AJournal of neurochemistry · 2026Article
- Aquaporin-4 deficiency induced white matter injury via upregulated complement component 3 in cerebral small vessel disease.Journal of neuroinflammation · 2026Article
- Chitinase-3-like protein 1 depletion in glioma cells alters tumor microenvironment and normalizes neovasculature in human glioma xenografts.Cell communication and signaling : CCS · 2026Article
- Neurovascular Dysfunction and Glymphatic Impairment: An Unexplored Therapeutic Frontier in Neurodegeneration.International journal of molecular sciences · 2025Review
- Aquaporin-4 in Stroke and Brain Edema-Friend or Foe?International journal of molecular sciences · 2025Review
- Evaluating protein complexes between human aquaporin and calmodulin using biomolecular fluorescence complementation.Scientific reports · 2025Article
- Osteopontin Regulates AQP4 Expression by TRPV4 Activation in Müller Cells: Implications for Retinal Homeostasis.Molecular neurobiology · 2025Article
- Article
- Article
- Inhibition of aquaporin-4 and its subcellular localization attenuates below-level central neuropathic pain by regulating astrocyte activation in a rat spinal cord injury model.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024Article
- Non-coding RNAs and Aquaporin 4: Their Role in the Pathogenesis of Neurological Disorders.Neurochemical research · 2024Review
- Mechanisms of aquaporin-4 vesicular trafficking in mammalian cells.Journal of neurochemistry · 2024Article
- The role of phosphorylation in calmodulin-mediated gating of human AQP0.The Biochemical journal · 2024Article
- Megalencephalic leukoencephalopathy with subcortical cysts: a variant update and review of the literature.Frontiers in genetics · 2024Article
- Astaxanthin ameliorates spinal cord edema and astrocyte activation via suppression of HMGB1/TLR4/NF-κB signaling pathway in a rat model of spinal cord injury.Naunyn-Schmiedeberg's archives of pharmacology · 2023Article
- Aquaporin-4 and GPRC5B: old and new players in controlling brain oedema.Brain : a journal of neurology · 2023Article
- Cation flux through SUR1-TRPM4 and NCX1 in astrocyte endfeet induces water influx through AQP4 and brain swelling after ischemic stroke.Science signaling · 2023Article
- Pathophysiology and Neuroimmune Interactions Underlying Parkinson's Disease and Traumatic Brain Injury.International journal of molecular sciences · 2023Review
12 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aquaporin family of integral membrane proteins is composed of channels that mediate cellular water flow. Aquaporin 4 (AQP4) is highly expressed in the glial cells of the central nervous system and facilitates the osmotically driven pathological brain swelling associated with stroke and traumatic brain injury. Here we show that AQP4 cell surface expression can be rapidly and reversibly regulated in response to changes of tonicity in primary cortical rat astrocytes and in transfected HEK293 cells. The translocation mechanism involves PKA activation, influx of extracellular calcium, and activation of calmodulin. We identify five putative PKA phosphorylation sites and use site-directed mutagenesis to show that only phosphorylation at one of these sites, serine 276, is necessary for the translocation response. We discuss our findings in the context of the identification of new therapeutic approaches to treating brain edema.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.