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Structure of the BTB
Description
This template shows the structure of the blood-brain barrier (BTB), depicting astrocytes, neurons, T cells, microglia, and co-opted vasculature above an endothelial cell layer with pericytes below. A magnified inset highlights the tight junctions and adherens junctions between endothelial cells that regulate passage between the brain and blood compartments, alongside a circulating tumor cell crossing into the brain.
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