Cited by 270Epilepsy research and treatmentTraumatic Brain Injury and Neurovascular DisturbancesBarrier Structure and Function Studies

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

Losartan prevents acquired epilepsy via TGF‐β signaling suppression

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Abstract

Objective: Acquired epilepsy is frequently associated with structural lesions after trauma, stroke, and infections. Although seizures are often difficult to treat, there is no clinically applicable strategy to prevent the development of epilepsy in patients at risk. We have recently shown that vascular injury is associated with activation of albumin‐mediated transforming growth factor β (TGF‐β) signaling, and followed by local inflammatory response and epileptiform activity ex vivo. Here we investigated albumin‐mediated TGF‐β signaling and tested the efficacy of blocking the TGF‐β pathway in preventing epilepsy. Methods: We addressed the role of TGF‐β signaling in epileptogenesis in 2 different rat models of vascular injury, combining in vitro and in vivo biochemical assays, gene expression, and magnetic resonance and direct optical imaging for blood–brain barrier permeability and vascular reactivity. Long‐term electrocorticographic recordings were acquired in freely behaving animals. Results: We demonstrate that serum‐derived albumin preferentially induces activation of the activin receptor‐like kinase 5 pathway of TGF‐β receptor I in astrocytes. We further show that the angiotensin II type 1 receptor antagonist, losartan, previously identified as a blocker of peripheral TGF‐β signaling, effectively blocks albumin‐induced TGF‐β activation in the brain. Most importantly, losartan prevents the development of delayed recurrent spontaneous seizures, an effect that persists weeks after drug withdrawal. Interpretation: TGF‐β signaling, activated in astrocytes by serum‐derived albumin, is involved in epileptogenesis. We propose losartan, a drug approved by the US Food and Drug Administration, as an efficient antiepileptogenic therapy for epilepsy associated with vascular injury. Ann Neurol 2014;75:864–875

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Metadata

Authors
Bar‐Klein, G., Cacheaux, L. P., Kamintsky, L., Prager, O., Weissberg, I., Schoknecht, K., Cheng, P., Kim, S. Y., Wood, L., Heinemann, U., Kaufer, D., & Friedman, A.
Affiliations
  • Ben-Gurion University of the Negev (IL)
  • University of California, Berkeley (US)
  • Departments of Physiology and Cell Biology Cognitive and Brain Sciences, Zlotowski Center for Neuroscience, Ben‐Gurion University of the Negev Beer‐Sheva Israel
  • Charité – Universitätsmedizin Berlin (DE)
  • Helen Wills Neuroscience Institute and Department of Integrative Biology University of California, Berkeley Berkeley CA
Corresponding author
Friedman, Alon
Venue
Annals of Neurology
Publisher
Wiley
Published
2014-05-28
Volume
75
Issue
6
Pages
864-875
ISSN
  • 0364-5134 (ISSN-L)
  • 1531-8249
OpenAlex
W1746603715
Cited by
270
References
63
Citations by year
2026: 18 · 2025: 11 · 2024: 28 · 2023: 24 · 2022: 23 · 2021: 26 · 2020: 29 · 2019: 30 · 2018: 15 · 2017: 26 · 2016: 17 · 2015: 13 · 2014: 10
FWCI
16.78
Type
journal article
Language
en
Open access
Locations
  • Annals of Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (RO1/NINDS NS066005)
  • United States - Israel Binational Science Foundation (2007185)
  • Israel Science Foundation (713/11)
  • The European Unions Seventh Framework Program (FP7/2007-2013), EPITARGET (602102)
Topics
  • Health Sciences › Medicine › Clinical Neurology › Epilepsy research and treatment
  • Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
losartan, acquired epilepsy, epileptogenesis, TGF-beta signaling, serum albumin, vascular injury, angiotensin II type 1 receptor, ALK5, astrocytes, blood-brain barrier permeability, vascular reactivity, antiepileptogenic therapy, spontaneous seizures, electrocorticography
MeSH terms
Animals, Animals, Newborn, Anticonvulsants, Astrocytes, Benzamides, Blood-Brain Barrier, Cells, Cultured, Cerebral Cortex, Dioxoles, Disease Models, Animal, Embryo, Mammalian, Endocytosis, Epilepsy, Male, Neurons, Phosphopyruvate Hydratase, Signal Transduction, Transforming Growth Factor beta, Rats, Wistar, Losartan, Rats

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