A Microfluidic Human Model of Blood-Brain Barrier Employing Primary Human Astrocytes

Area of Science:

• Neuroscience
• Immunology
• Biomedical Engineering

Background:

• The neurovascular unit (NVU) is a critical biological barrier protecting the central nervous system (CNS) and mediating neuroimmune communication.
• T lymphocyte migration across the blood-brain barrier is implicated in various brain diseases and is a target for drug development.
• In vitro models are essential for studying molecular events at the NVU interface.

Purpose of the Study:

• To develop a patient-related in vitro model of the neurovascular unit (NVU).
• To investigate human T lymphocyte transmigration across the blood-brain barrier using this novel model.
• To assess the efficacy of potential drugs targeting T lymphocyte migration.

Main Methods:

• Integration of human primary astrocytes into a microfluidic platform to create a patient-related NVU model.
• Morphological and functional characterization of the developed NVU model.
• Utilizing the model to study human T lymphocyte transmigration.

Main Results:

• The microfluidic NVU model successfully incorporates human primary astrocytes.
• The model demonstrates morphological and functional relevance for studying the blood-brain barrier.
• The model is effective for investigating T lymphocyte transmigration and evaluating drug efficacy.

Conclusions:

• A patient-related NVU model in a microfluidic platform is established.
• This model serves as an advantageous tool for studying T lymphocyte migration across the blood-brain barrier.
• The model facilitates the investigation of novel therapeutic strategies for brain diseases.