Modeling the Blood-Brain Barrier Using Human-Induced Pluripotent Stem Cells.

Methods in molecular biology (Clifton, N.J.)(2023)

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摘要
The blood-brain barrier (BBB) is a key physiological component of the brain, protecting the brain from peripheral processes and pathogens. The BBB is a dynamic structure that is heavily involved in cerebral blood flow, angiogenesis, and other neural functions. However, the BBB also creates a challenging barrier for the entry of therapeutics into the brain, blocking more than 98% of drugs from contact with the brain. Neurovascular comorbidities are common in several neurological diseases including Alzheimer's and Parkinson's Disease, suggesting that BBB dysfunction or break down likely has a causal role in neurodegeneration. However, the mechanisms by which the human BBB is formed, maintained, and degenerated in diseases remain largely unknown due to limited access to human BBB tissue. To address these limitations, we have developed an in vitro induced human BBB (iBBB) derived from pluripotent stem cells. The iBBB model can be used for discovery of disease mechanisms, drug targets, drug screening, and medicinal chemistry studies to optimize brain penetration of central nervous system therapeutics. In this chapter, we will explain the steps to differentiate the three cellular components (endothelial cells, pericytes, and astrocytes) from induced pluripotent stem cells, and how to assemble them into the iBBB.
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stem cells,blood-brain,human-induced
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