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March 21, 2026NeurosurgeryOpen Access

RAGE Inhibition Reduces Surgery-Induced Cerebral Edema After Glioma Resection

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Authors

MDMojtaba DayyaniAFAleksandr FilippovIZI. Zhang

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Overview

Evaluates RAGE inhibitors to reduce cerebral edema in murine glioma models, suggesting a steroid-sparing strategy for management.

Key Points

  • The study aims to investigate the impact of RAGE inhibitors on cerebral edema following glioma resection.
  • Mice with CT-2A gliomas were randomized into four treatment groups: TTP488, FPS-ZM1, dexamethasone, or vehicle.
  • Perioperative treatments were administered from four days before surgery to seven days after tumor resection.
  • Cerebral edema was assessed using serial brain MRI and quantified with manual segmentation.
  • Neurological function and response to anti-PD-1 immunotherapy were evaluated alongside bulk RNA sequencing for gene expression analysis.
  • Cerebral edema peaked on postoperative day 2 but subsided by day 7 across all groups.
  • Both RAGE inhibitors significantly reduced edema on postoperative day 1 compared to the vehicle group (P = .03 for both).
  • Neither RAGE inhibitor impaired the efficacy of anti-PD-1 immunotherapy, unlike dexamethasone.
  • FPS-ZM1 also improved neurological recovery and wound healing, enhancing anti-PD-1 therapy at higher doses.

Cite This Study

Dayyani et al. (2026) studied this question.

synapsesocial.com/papers/69be37dd6e48c4981c677cdfhttps://doi.org/10.1227/neu.0000000000003987
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