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The Blood-brain Barrier00:49

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Physiological barriers are semi-permeable cellular structures restricting drug diffusion into intracellular compartments and tissues. There are six types of physiological barriers: blood endothelial, cell membrane, blood-brain, blood-cerebrospinal fluid (CSF), blood-placenta, and blood-testis barriers.
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
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Related Experiment Video

Updated: May 20, 2025

Improved Method for the Preparation of a Human Cell-based, Contact Model of the Blood-Brain Barrier
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BBB breakdown caused by plasma membrane pore formation.

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|March 27, 2025
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This summary is machine-generated.

Gasdermin D (GSDMD) pore formation in brain endothelial cells is a key mechanism disrupting the blood-brain barrier (BBB). This finding offers new insights into CNS diseases and potential therapeutic targets.

Keywords:
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Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • The blood-brain barrier (BBB) protects the central nervous system (CNS) from peripheral insults.
  • BBB disruption is implicated in various CNS diseases.
  • Traditional mechanisms of BBB failure include tight junction disruption and transcytosis.

Purpose of the Study:

  • To highlight the role of gasdermin D (GSDMD) pore formation in brain endothelial cells (bECs) during BBB disruption.
  • To explore GSDMD-mediated BBB leakage as a prevalent mechanism in CNS diseases.
  • To investigate novel therapeutic strategies for BBB-related disorders.

Main Methods:

  • Review of recent studies on BBB integrity and GSDMD function.
  • Analysis of molecular mechanisms underlying bEC membrane permeability.
  • Exploration of LPS and bacterial infection models of BBB disruption.

Main Results:

  • GSDMD pore formation in bECs is a critical mechanism causing BBB disruption, particularly during infections.
  • This mechanism may contribute to neurological symptoms like brain fog in long COVID.
  • BBB leakage via GSDMD pores represents a significant pathway for CNS damage.

Conclusions:

  • GSDMD-mediated pore formation is a crucial factor in BBB dysfunction.
  • Understanding these molecular processes is vital for developing new therapies for CNS diseases.
  • Further research into bEC membrane integrity is warranted to advance brain vasculature understanding.